Document:

Form of Indenture

  
 Exhibit 4.1

  
  

 
  

Sigma-Aldrich Corporation 
 and 
 Deutsche Bank Trust Company Americas 

as Trustee 
  

 
 Indenture

 Dated as of             , 2010 

  
 TABLE OF CONTENTS

  

							
	 	  	 	  	PAGE	 
	 ARTICLE I. DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION
	  	 	1	  
			
	 Section 1.1.
	  	Definitions.	  	 	1	  
	 Section 1.2.
	  	Compliance Certificates and Opinions.	  	 	10	  
	 Section 1.3.
	  	Form of Documents Delivered to Trustee.	  	 	11	  
	 Section 1.4.
	  	Notices, Etc., to Trustee and Company.	  	 	11	  
	 Section 1.5.
	  	Notice to Holders; Waiver.	  	 	12	  
	 Section 1.6.
	  	Conflict With Trust Indenture Act.	  	 	12	  
	 Section 1.7.
	  	Effect of Headings and Table of Contents.	  	 	13	  
	 Section 1.8.
	  	Successors and Assigns.	  	 	13	  
	 Section 1.9.
	  	Separability Clause.	  	 	13	  
	 Section 1.10.
	  	Benefits of Indenture.	  	 	13	  
	 Section 1.11.
	  	Governing Law.	  	 	13	  
	 Section 1.12.
	  	Legal Holidays.	  	 	13	  
	 Section 1.13.
	  	Liability Solely Corporate.	  	 	14	  
	 Section 1.14.
	  	No Security Interest Created.	  	 	14	  
	 Section 1.15.
	  	Waiver of Jury Trial.	  	 	14	  
	 Section 1.16.
	  	U.S.A. Patriot Act.	  	 	14	  
	 Section 1.17.
	  	Force Majeure.	  	 	15	  
		
	 ARTICLE II. DEBT SECURITY FORMS
	  	 	15	  
			
	 Section 2.1.
	  	Forms Generally.	  	 	15	  
	 Section 2.2.
	  	Form of Trustee’s Certificate of Authentication.	  	 	16	  
	 Section 2.3.
	  	Securities in Global Form.	  	 	16	  
		
	 ARTICLE III. THE DEBT SECURITIES
	  	 	16	  
			
	 Section 3.1.
	  	Amount Unlimited; Issuable in Series.	  	 	16	  
	 Section 3.2.
	  	Denominations.	  	 	20	  
	 Section 3.3.
	  	Execution, Authentication, Delivery and Dating.	  	 	20	  
	 Section 3.4.
	  	 Temporary Debt Securities; Global Notes Representing Debt
Securities.
	  	 	22	  
	 Section 3.5.
	  	Registration, Transfer and Exchange.	  	 	25	  
	 Section 3.6.
	  	Mutilated, Destroyed, Lost and Stolen Debt Securities.	  	 	26	  
	 Section 3.7.
	  	Payment of Interest; Interest Rights Preserved.	  	 	27	  
	 Section 3.8.
	  	Cancellation.	  	 	28	  
	 Section 3.9.
	  	Computation of Interest.	  	 	28	  
	 Section 3.10.
	  	Currency of Payments in Respect of Debt Securities.	  	 	29	  
	 Section 3.11.
	  	CUSIP Numbers.	  	 	29	  
		
	 ARTICLE IV. SATISFACTION AND DISCHARGE
	  	 	29	  
			
	 Section 4.1.
	  	Satisfaction and Discharge of Indenture.	  	 	29	  
	 Section 4.2.
	  	Application of Trust Money, Etc.	  	 	30	  

  
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	 ARTICLE V. REMEDIES
	  	 	31	  
			
	 Section 5.1.
	  	Events of Default.	  	 	31	  
	 Section 5.2.
	  	Acceleration of Maturity; Rescission and Annulment.	  	 	32	  
	 Section 5.3.
	  	Collection of Indebtedness and Suits for Enforcement by Trustee.	  	 	33	  
	 Section 5.4.
	  	Trustee May File Proofs of Claim.	  	 	34	  
	 Section 5.5.
	  	Trustee May Enforce Claims Without Possession of Debt Securities.	  	 	35	  
	 Section 5.6.
	  	Application of Money Collected.	  	 	35	  
	 Section 5.7.
	  	Limitation on Suits.	  	 	36	  
	 Section 5.8.
	  	 Unconditional Right of Holders to Receive Principal, Premium and
Interest.
	  	 	37	  
	 Section 5.9.
	  	Restoration of Rights and Remedies.	  	 	37	  
	 Section 5.10.
	  	Rights and Remedies Cumulative.	  	 	37	  
	 Section 5.11.
	  	Delay or Omission Not Waiver.	  	 	37	  
	 Section 5.12.
	  	Control By Holders.	  	 	37	  
	 Section 5.13.
	  	Waiver of Past Defaults.	  	 	38	  
	 Section 5.14.
	  	Undertaking for Costs.	  	 	38	  
		
	 ARTICLE VI. THE TRUSTEE
	  	 	39	  
			
	 Section 6.1.
	  	Certain Duties and Responsibilities.	  	 	39	  
	 Section 6.2.
	  	Notice of Defaults.	  	 	40	  
	 Section 6.3.
	  	Certain Rights of Trustee.	  	 	41	  
	 Section 6.4.
	  	Not Responsible for Recitals or Issuance of Debt Securities.	  	 	42	  
	 Section 6.5.
	  	May Hold Debt Securities.	  	 	42	  
	 Section 6.6.
	  	Money Held in Trust.	  	 	42	  
	 Section 6.7.
	  	Compensation and Reimbursement.	  	 	42	  
	 Section 6.8.
	  	Disqualification; Conflicting Interests.	  	 	43	  
	 Section 6.9.
	  	Corporate Trustee Required; Eligibility.	  	 	44	  
	 Section 6.10.
	  	Resignation and Removal; Appointment of Successor.	  	 	44	  
	 Section 6.11.
	  	Acceptance of Appointment by Successor.	  	 	45	  
	 Section 6.12.
	  	Merger, Conversion, Consolidation or Succession to Business.	  	 	46	  
	 Section 6.13.
	  	Preferential Collection of Claims Against Company.	  	 	47	  
	 Section 6.14.
	  	Appointment of Authenticating Agent.	  	 	47	  
		
	 ARTICLE VII. HOLDERS’ LISTS AND REPORTS BY TRUSTEE AND COMPANY
	  	 	49	  
			
	 Section 7.1.
	  	Company to Furnish Trustee Names and Addresses of Holders.	  	 	49	  
	 Section 7.2.
	  	Preservation of Information; Communication to Holders.	  	 	49	  
	 Section 7.3.
	  	Reports by Trustee.	  	 	49	  
	 Section 7.4.
	  	Reports by Company.	  	 	50	  
		
	 ARTICLE VIII. CONCERNING THE HOLDERS
	  	 	51	  
			
	 Section 8.1.
	  	Acts of Holders.	  	 	51	  
	 Section 8.2.
	  	Proof of Ownership; Proof of Execution of Instruments by Holder.	  	 	52	  
	 Section 8.3.
	  	Persons Deemed Owners.	  	 	52	  
	 Section 8.4.
	  	Revocation of Consents; Future Holders Bound.	  	 	52	  
		
	 ARTICLE IX. HOLDERS’ MEETINGS
	  	 	53	  
			
	 Section 9.1.
	  	Purposes of Meetings.	  	 	53	  

  
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	 Section 9.2.
	  	Call of Meetings by Trustee.	  	 	53	  
	 Section 9.3.
	  	Call of Meetings by Company or Holders.	  	 	53	  
	 Section 9.4.
	  	Qualifications For Voting.	  	 	54	  
	 Section 9.5.
	  	Regulations.	  	 	54	  
	 Section 9.6.
	  	Voting.	  	 	54	  
		
	 ARTICLE X. CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE
	  	 	55	  
			
	 Section 10.1.
	  	Company May Consolidate, Etc., Only on Certain Terms.	  	 	55	  
	 Section 10.2.
	  	Successor Corporation Substituted.	  	 	56	  
		
	 ARTICLE XI. SUPPLEMENTAL INDENTURES
	  	 	56	  
			
	 Section 11.1.
	  	Supplemental Indentures Without Consent of Holders.	  	 	56	  
	 Section 11.2.
	  	Supplemental Indentures With Consent of Holders.	  	 	57	  
	 Section 11.3.
	  	Execution of Supplemental Indentures.	  	 	58	  
	 Section 11.4.
	  	Effect of Supplemental Indentures.	  	 	59	  
	 Section 11.5.
	  	Conformity With Trust Indenture Act.	  	 	59	  
	 Section 11.6.
	  	Reference in Debt Securities to Supplemental Indentures.	  	 	59	  
	 Section 11.7.
	  	Notice of Supplemental Indenture.	  	 	59	  
		
	 ARTICLE XII. COVENANTS
	  	 	59	  
			
	 Section 12.1.
	  	Payment of Principal, Premium and Interest.	  	 	59	  
	 Section 12.2.
	  	Officer’s Certificate as to Default.	  	 	59	  
	 Section 12.3.
	  	Maintenance of Office or Agency.	  	 	60	  
	 Section 12.4.
	  	Money for Debt Securities; Payments to be Held in Trust.	  	 	60	  
	 Section 12.5.
	  	Restriction on Liens.	  	 	61	  
	 Section 12.6.
	  	Restrictions on Sale and Leaseback Transactions.	  	 	63	  
	 Section 12.7.
	  	Waiver of Certain Covenants.	  	 	64	  
		
	 ARTICLE XIII. REDEMPTION OF DEBT SECURITIES
	  	 	65	  
			
	 Section 13.1.
	  	Applicability of Article.	  	 	65	  
	 Section 13.2.
	  	Election to Redeem; Notice to Trustee.	  	 	65	  
	 Section 13.3.
	  	Selection by Trustee of Debt Securities to be Redeemed.	  	 	65	  
	 Section 13.4.
	  	Notice of Redemption.	  	 	66	  
	 Section 13.5.
	  	Deposit of Redemption Price.	  	 	67	  
	 Section 13.6.
	  	Debt Securities Payable on Redemption Date.	  	 	67	  
	 Section 13.7.
	  	Debt Securities Redeemed in Part.	  	 	67	  
		
	 ARTICLE XIV. SINKING FUNDS
	  	 	68	  
			
	 Section 14.1.
	  	Applicability of Articles.	  	 	68	  
	 Section 14.2.
	  	 Satisfaction of Mandatory Sinking Fund Payments with Debt
Securities.
	  	 	68	  
	 Section 14.3.
	  	Redemption of Debt Securities for Sinking Fund.	  	 	68	  
		
	 ARTICLE XV. DEFEASANCE
	  	 	70	  
			
	 Section 15.1.
	  	Applicability of Article.	  	 	70	  
	 Section 15.2.
	  	 Defeasance Upon Deposit of Moneys or U.S. Government
Obligations.
	  	 	70	  

  
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	 Section 15.3.
	  	 Deposited Moneys and U.S. Government Obligations to be Held in
Trust.
	  	 	73	  
	 Section 15.4.
	  	Repayment to Company.	  	 	73	  

  
 iv 

  
 SENIOR INDENTURE dated
as of             , 2010, among Sigma-Aldrich Corporation, a Delaware corporation (hereinafter called the “Company”), having its principal executive office at 3050 Spruce
Street, St. Louis, Missouri 63103 and Deutsche Bank Trust Company Americas, a New York banking corporation (hereinafter called the “Trustee”), having its principal corporate trust office at 60 Wall Street, New York, New York 10005.

 RECITALS OF THE COMPANY 
 The Company has duly authorized the execution and delivery of this Indenture to provide for the issuance from time to time of its debentures, notes, bonds or other evidences of indebtedness (herein
generally called the “Debt Securities”), to be issued in one or more series, as in this Indenture provided. 
 All
things necessary have been done to make this Indenture a valid agreement of the Company in accordance with its terms. 
 NOW,
THEREFORE, THIS INDENTURE WITNESSETH: 
 For and in consideration of the premises and the purchase of Debt Securities by the
Holders thereof, it is mutually covenanted and agreed, for the equal and proportionate benefit of all Holders of Debt Securities or of Debt Securities of any series, as follows: 

ARTICLE I. 

DEFINITIONS AND OTHER PROVISIONS 
 OF GENERAL APPLICATION 
 Section 1.1. Definitions. 

For all purposes of this Indenture, except as otherwise expressly provided or unless the context otherwise requires: 

(1) the terms defined in this Article have the meanings assigned to them in this Article, and include the plural as well
as the singular; 
 (2) all other terms used herein which are defined in the Trust Indenture Act, either directly
or by reference therein, have the meanings assigned to them therein; 
 (3) all accounting terms not otherwise
defined herein have the meanings assigned to them in accordance with generally accepted accounting principles or as provided with respect to any series of Debt Securities, and, except as otherwise herein provided or as provided with respect to any
series of Debt Securities, the term “generally accepted accounting principles” or “GAAP”, with respect to any computation required or permitted hereunder with respect to any series of Debt Securities, shall mean generally
accepted accounting principles as are set forth in the statements and pronouncements of the Financial Accounting Standards Board and in opinions of the Accounting Principles Board of the American Institute of Certified Public

 
Accountants or in such other statements by such other entity as have been approved by a significant segment of the accounting profession or which have other substantial authoritative support in
the United States and are applicable in the circumstances, in each case, as applied on a consistent basis, which are in effect as of the issuance date of such series of Debt Securities; and 

(4) the words “herein,” “hereof” and “hereunder” and other words of similar import refer to
this Indenture as a whole and not to any particular Article, Section or other subdivision. 
 Certain terms, used principally in Article III or
Article VI, are defined in those respective Articles. 
 “Act” when used with respect to any Holder, has the meaning
specified in Section 8.1. 
 “Affiliate” of any specified Person means any other Person directly or indirectly
controlling or controlled by or under direct or indirect common control with such specified Person. For the purposes of this definition, “control” as used with respect to any Person shall mean the possession, directly or indirectly, of the
power to direct or cause the direction of the management or policies of such Person, whether through the ownership of voting securities, by agreement or otherwise. For purposes of this definition, the terms “controlling,” “controlled
by” and “under common control with” shall have correlative meanings. 
 “Attributable Debt” has the
meaning specified in Section 12.6. 
 “Authenticating Agent” has the meaning specified in Section 6.14.

 “Board of Directors” means the board of directors of the Company or any committee of that board duly authorized to
act hereunder or any director or directors and/or officer or officers of the Company to whom that board or committee shall have delegated its authority. 
 “Board Resolution” means a copy of a resolution certified by the Secretary or an Assistant Secretary of the Company to have been duly adopted by the Board of Directors and to be in full force
and effect on the date of such certification, and delivered to the Trustee. Where any provision of this Indenture refers to action to be taken pursuant to a Board Resolution (including the establishment of any series of the Debt Securities and the
forms and terms thereof) such action may be taken by any committee, officer or employee of the Company authorized to take such action by a Board Resolution. 
 “Business Day” when used with respect to any Place of Payment or any other particular location referred to in this Indenture or in the Debt Securities means any day which is not a Saturday, a
Sunday or a legal holiday or a day on which banking institutions or trust companies in that Place of Payment or other location are authorized or obligated by law or regulation to close, except as otherwise specified pursuant to Section 3.1.

  
 2 

  
 “Closing
Price” of the Common Stock for any Trading Day means (i) if the Common Stock is then listed or admitted for trading on any national securities exchange, the last sale price, or the closing bid price if no sale occurred, of the Common Stock
on such Trading Day on the principal securities exchange on which the Common Stock is listed, (ii) if the Common Stock is not listed or admitted for trading as described in clause (i), the last reported sale price of the Common Stock on such
Trading Day in the over-the-counter market as reported by Pink OTC Markets Inc., or any similar system of dissemination of quotations of securities prices then in common use, if so quoted, or (iii) if not listed or quoted as described in clause
(i) or (ii), the mean between the high bid and low asked quotations on such Trading Day for the Common Stock as reported by the Pink OTC Markets Inc. if at least two securities dealers have inserted both bid and asked quotations for the Common
Stock on at least five of the ten preceding Trading Days. If none of the conditions set forth above is met, the last reported sale price of the Common Stock on any Trading Day or the average of such last reported sale prices for any period shall be
the fair market value of the Common Stock as determined by a member firm of the New York Stock Exchange selected by the Company. 
 “Code” means the United States Internal Revenue Code of 1986, as amended, and the regulations thereunder. 
 “Commission” means the Securities and Exchange Commission, as from time to time constituted, created under the Securities Exchange Act of 1934, as amended, or if at any time after the execution
of this instrument such Commission is not existing and performing the duties now assigned to it under the Trust Indenture Act, then the body performing such duties on such date. 

“Commodity Agreement” means any forward contract, commodity swap, commodity option or other financial agreement or arrangement
relating to, or the value of which is dependent upon, fluctuations in commodity prices. 
 “Common Stock” means the
class of Common Stock, $1.00 par value per share, of the Company authorized at the date of this Indenture as originally signed, or any other class of stock resulting from successive changes or reclassifications of such Common Stock, and in any such
case including any shares thereof authorized after the date of this Indenture, and any other shares of stock of the Company which do not have any priority as to the payment of dividends or upon liquidation over any other class of stock. 

“Company” means the Person named as the “Company” in the first paragraph of this instrument until a successor Person
shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “Company” shall mean such successor Person. 

  
 3 

  
 “Company
Request” and “Company Order” mean, respectively, a written request or order signed in the name of the Company by the Chairman of the Board, a Vice Chairman, the Chief Executive Officer, the President, the Chief Financial Officer, the
Chief Operating Officer or a Vice President and by the Treasurer, an Assistant Treasurer, the Secretary or an Assistant Secretary of the Company, and delivered to the Trustee. The officers signing a Company Request or Company Order may be the same
Person. 
 “Consolidated Net Tangible Assets” means the total assets of the Company and its Restricted Subsidiaries
(including, without limitation, any net investment in Subsidiaries that are not Restricted Subsidiaries) after deducting therefrom (a) all current liabilities (excluding any notes and loans payable, current maturities of long-term debt, the
current portion of deferred revenue, obligations under capital leases and any other liability constituting Indebtedness) and (b) all goodwill, trade names, trademarks, franchises, patents, unamortized debt discount and expense, organization and
developmental expenses and other like segregated intangibles, all as computed by the Company and its Restricted Subsidiaries in accordance with GAAP as of the end of the fiscal year preceding the date of determination; provided, that any items
constituting deferred income taxes, deferred investment tax credit or other similar items shall not be taken into account as a liability or as a deduction from or adjustment to total assets. 

“Corporate Trust Office” means the corporate trust office of the Trustee at which at any particular time its corporate trust
business shall be principally administered, which office at the date of execution of this instrument is located at: Deutsche Bank Trust Company Americas, Trust and Securities Services, 60 Wall Street, 27th Floor, MS: NYC60-2710, New York, New York
10005, Attention: Corporate Team Deal Manager – Sigma-Aldrich 2010, with a copy to Deutsche Bank National Trust Company for Deutsche Bank Trust Company Americas, Trust and Securities Services, 100 Plaza One, Mail Stop: JCY03-0699, Jersey City,
New Jersey 07311. 
 “Corporation” means corporations, associations, limited liability companies, limited
partnerships, business trusts and other legal entities. 
 “Currency” means any currency, composite currency or
currency unit and Foreign Currency issued by the government of one or more countries or by any recognized union, confederation or association of such governments. 
 “Currency Agreement” means any foreign exchange contract, currency swap agreement or other similar agreement with respect to currency values. 

“Current Market Price” on any date means the average of the daily Closing Prices per share of Common Stock for any thirty
(30) consecutive Trading Days selected by the Company prior to the date in question, which thirty (30) consecutive Trading Day period shall not commence more than forty-five (45) Trading Days prior to the day in question; provided
that with respect to Section 16.3(3), the “Current Market Price” of the Common Stock shall mean the average of the daily Closing Prices per share of Common Stock for the five (5) consecutive Trading Days ending on the date of the
distribution referred to in Section 16.3(3) (or if such date shall not be a Trading Day, on the Trading Day immediately preceding such date). 

  
 4 

  
 “Debt
Securities” has the meaning stated in the first recital of this Indenture and more particularly means any Debt Securities (including any Global Notes) authenticated and delivered under this Indenture. 

“Defaulted Interest” has the meaning specified in Section 3.7. 

“Depositary” means a clearing agency registered under the Securities Exchange Act of 1934, as amended, or any successor
thereto, which shall in either case be designated as such by the Company pursuant to Section 3.1 until a successor Depositary shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “Depositary”
shall mean or include each Person who is then a Depositary hereunder, and if at any time there is more than one such Person, “Depositary” as used with respect to the Debt Securities of any series shall mean the Depositary with respect to
the Debt Securities of that series. 
 “Discharged” has the meaning specified in Section 15.2. 

“Discount Security” means any Debt Security which is issued with “original issue discount” within the meaning of
Section 1273(a) of the Code (or any successor provision) and the regulations thereunder. 
 “Dollar” or
“$” means a dollar or other equivalent unit in such coin or currency of the United States as at the time of payment is legal tender for the payment of public and private debts. 

“EDGAR” means the Commission’s Electronic Data Gathering, Analysis and Retrieval system, or any successor system
established by the Commission for the dissemination of data to investors. 
 “Event of Default” has the meaning
specified in Section 5.1. 
 “Floating Rate Security” means a Debt Security which provides for the payment of
interest at a variable rate determined periodically by reference to an interest rate index or any other index specified pursuant to Section 3.1. 
 “Foreign Currency” means any Currency other than Currency of the United States. 
 “Global Note” means a Debt Security evidencing all or part of a series of Debt Securities. 
 “Hedging Obligations” of any Person means the obligations of such Person pursuant to any Interest Rate Agreement, Currency Agreement, Commodity Agreement or derivative contract entered into to
hedge interest rate risk, currency exchange risk, and commodity price risk. 
 “Holder” means the Person in whose name
a Debt Security is registered in the Security Register. 

  
 5 

  

“Indebtedness” means any and all obligations of a Person for money borrowed which, in accordance with GAAP, would be reflected
on the balance sheet of such Person as a liability on the date as of which Indebtedness is to be determined. 

“Indenture” means this instrument as originally executed, or as it may from time to time be supplemented or amended by one or
more indentures supplemental hereto entered into pursuant to the applicable provisions hereof and, unless the context otherwise requires, shall include the terms of a particular series of Debt Securities as established pursuant to Section 3.1.

 “Interest” or “interest,” when used with respect to a Discount Security which by its terms bears interest
only from a certain date, means interest payable after such date. 
 “Interest Payment Date” with respect to any Debt
Security means the Stated Maturity of an installment of interest on such Debt Security. 
 “Interest Rate Agreement”
means any interest rate swap agreement, interest rate cap agreement or other financial agreement or arrangement with respect to exposure to interest rates. 
 “Lien” means any mortgage, pledge, lien, security interest or other encumbrances upon any Principal Property or any shares of stock or on Indebtedness of any Restricted Subsidiary (whether such
Principal Property, shares of stock or Indebtedness are now owned or hereafter acquired) 
 “Maturity” when used with
respect to any Debt Security means the date on which the principal of such a Debt Security or an installment of principal becomes due and payable as therein or herein provided, whether at the Stated Maturity or by declaration of acceleration, call
for redemption, repayment or repurchase at the option of the Holder thereof, notice of exchange or conversion or otherwise. 

“Notice of Default” has the meaning specified in Section 5.1(4). 

“Officers’ Certificate” means a certificate signed by the Chairman of the Board, a Vice Chairman, the Chief Executive
Officer, the President, the Chief Financial Officer, the Chief Operating Officer, a Senior Vice President or a Vice President, and by the Treasurer, an Assistant Treasurer, the Secretary or an Assistant Secretary of the Company, and delivered to the
Trustee. The officers signing an Officers’ Certificate may be the same Person. 
 “Opinion of Counsel” means a
written opinion of counsel, who may be counsel to the Company (including an employee of the Company) and who shall be reasonably satisfactory to the Trustee, provided that the General Counsel or other legal officer of the Company shall never be
deemed unacceptable to the Trustee, which is delivered to the Trustee, which opinion may be subject to standard qualifications and exceptions. 

  
 6 

  

“Outstanding” when used with respect to Debt Securities means, as of the date of determination, all Debt Securities theretofore
authenticated and delivered under this Indenture, except: 
 (i) Debt Securities theretofore canceled by the Trustee or
delivered to the Trustee for cancellation; 
 (ii) Debt Securities for whose redemption money in the necessary amount has been
theretofore deposited with the Trustee or any Paying Agent (other than the Company) in trust or set aside and segregated and held in trust by the Company (if the Company shall act as its own Paying Agent) for the Holders of such Debt Securities;
provided, however, that if such Debt Securities are to be redeemed prior to their Stated Maturity, notice of such redemption has been duly given pursuant to this Indenture or provision therefor satisfactory to the Trustee has been made; 

(iii) Debt Securities, except to the extent provided in Section 15.2, with respect to which the Company has effected defeasance
and/or covenant defeasance as provided in Article Fifteen 
 (iv) Debt Securities that have been converted or exchanged for
other securities; and 
 (v) Debt Securities which have been paid pursuant to Section 3.6 or in exchange for or in lieu of
which other Debt Securities have been authenticated and delivered pursuant to this Indenture, other than any such Debt Securities in respect of which there shall have been presented to the Trustee proof satisfactory to it that such Debt Securities
are held by a bona fide purchaser in whose hands such Debt Securities are valid obligations of the Company; 
 provided, however, that, in
determining whether the Holders of the requisite principal amount of Debt Securities Outstanding have performed any Act hereunder, Debt Securities owned by the Company or any other obligor upon the Debt Securities or any Affiliate of the Company or
of such other obligor shall be disregarded and deemed not to be Outstanding (provided that, in connection with any offer by the Company or any obligor to purchase Debt Securities, Debt Securities tendered by a Holder shall be deemed to be
Outstanding until the date of purchase), except that, (i) in determining whether the Trustee shall be protected in conclusively relying upon any such Act, only Debt Securities which a Responsible Officer of the Trustee actually knows to be so
owned shall be so disregarded and (ii) the foregoing shall not apply at any time when all of the Outstanding Debt Securities are owned by the Company, the Trustee and/or any such Affiliate. Debt Securities so owned which have been pledged in
good faith may be regarded as Outstanding if the pledgee establishes to the satisfaction of the Trustee the pledgee’s right to act with respect to such Debt Securities and that the pledgee is not the Company or any other obligor upon the Debt
Securities or any Affiliate of the Company or of such other obligor. In determining whether the Holders of the requisite principal amount of Outstanding Debt Securities have performed any Act hereunder, the principal amount of a Discount Security
that shall be deemed to be Outstanding for such purpose shall be the amount of the principal thereof that would be due and payable as of the date of such determination upon a declaration of acceleration of the Maturity thereof pursuant to
Section 5.2. 

  
 7 

  
 “Paying
Agent” means any Person authorized by the Company to pay the principal of (and premium, if any) or interest on any Debt Securities on behalf of the Company. 
 “Person” means any individual, corporation, partnership, joint venture, association, joint-stock company, trust, estate, unincorporated organization or government or any agency or political
subdivision thereof or any other entity. 
 “Place of Payment” when used with respect to the Debt Securities of any
series means the place or places where the principal of (and premium, if any) and interest on the Debt Securities of that series are payable as specified pursuant to Section 3.1. 

“Predecessor Security” of any particular Debt Security means every previous Debt Security evidencing all or a portion of the
same debt as that evidenced by such particular Debt Security; and, for the purposes of this definition, any Debt Security authenticated and delivered under Section 3.6 in lieu of a mutilated, lost, destroyed or stolen Debt Security shall be
deemed to evidence the same debt as the mutilated, lost, destroyed or stolen Debt Security. 
 “Principal Property”
means each plant or facility of the Company or a Restricted Subsidiary located within the United States (other than its territories and possessions) or Puerto Rico, except for any such plant or facility which (i) has a gross book value of less
than 2% of Consolidated Net Tangible Assets or (ii) in the good faith opinion of the Board of Directors of the Company is not of material importance to the total business conducted by the Company and its Restricted Subsidiaries. 

“Redemption Date” means the date fixed for redemption of any Debt Security pursuant to this Indenture which, in the case of a
Floating Rate Security, unless otherwise specified pursuant to Section 3.1, shall be an Interest Payment Date only. 

“Redemption Price” means, unless otherwise specified pursuant to Section 3.1, in the case of a Discount Security, the
amount of the principal thereof that would be due and payable as of the Redemption Date upon a declaration of acceleration of the Maturity thereof pursuant to Section 5.2, and in the case of any other Debt Security, the principal amount
thereof, plus, in each case, premium, if any, and accrued and unpaid interest, if any, to the Redemption Date. 
 “Regular
Record Date” for the interest payable on the Debt Securities of any series on any Interest Payment Date means the date specified for that purpose pursuant to Section 3.1 for such Interest Payment Date. 

  
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 “Responsible
Officer” when used with respect to the Trustee means any managing director, director, vice president, any associate, or any assistant vice president or any other officer of the Trustee customarily performing functions similar to those performed
by any of the above designated officers, in each case, with direct responsibility for the administration of the Indenture and the Debt Securities and also means, with respect to a particular corporate trust matter, any other officer to whom such
matter is referred because of his knowledge of and familiarity with the particular subject. 
 “Restricted Subsidiary”
means any Subsidiary: 
 (i) substantially all of the property of which is located, or substantially all of the business of
which is carried on, within the United States of America, the District of Columbia or Puerto Rico, and 
 (ii) which owns or is
the lessee of any Principal Property. 
 “Sale and Leaseback Transaction” has the meaning specified in
Section 12.6. 
 “Secured Debt” has the meaning specified in Section 12.5. 

“Security Register” and “Security Registrar” have the respective meanings specified in Section 3.5(a).

 “Special Record Date” for the payment of any Defaulted Interest means a date fixed by the Trustee pursuant to
Section 3.7. 
 “Stated Maturity” when used with respect to any Debt Security or any installment of principal
thereof or premium thereon or interest thereon means the date specified in such Debt Security as the date on which the principal of such Debt Security or such installment of principal, premium or interest is due and payable. 

“Subsidiary” means (1) any corporation of which at least a majority of the outstanding stock having by the terms thereof
ordinary voting power for the election of directors of such corporation (irrespective of whether or not at the time stock of any other class or classes of such corporation shall have or might have voting power by reason of the happening of any
contingency) is at the time directly or indirectly owned by us or one or more other Subsidiaries and (2) any other Person in which we or one or more other Subsidiaries, directly or indirectly, at the date of determination, (x) own at least
a majority of the outstanding ownership interests or (y) have the power to elect or direct the election of, or to appoint or approve the appointment of, at least the majority of the directors, trustees or managing members of, or other persons
holding similar positions with, such Person. 
 “Trading Day” means a day during which trading in securities generally
occurs on the Nasdaq National Market or, if the applicable security is not traded on the Nasdaq National Market, on the principal other national or regional securities exchange or market on which the applicable security is then listed or traded.

 “Trustee” means the Person named as the “Trustee” in the first paragraph of this instrument until a
successor Trustee shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “Trustee” shall mean or include each Person who is then a Trustee hereunder, and if at any time there is more than one such
Person, “Trustee” as used with respect to the Debt Securities of any series shall mean the Trustee with respect to Debt Securities of such series. 

  
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 “Trust Indenture
Act” or “TIA” means the Trust Indenture Act of 1939, as amended and as in force at the date as of which this instrument was executed, except as provided in Section 11.5. 

“United States” means the United States of America (including the States and the District of Columbia), and its possessions,
which include Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island and the Northern Mariana Islands. 

“U.S. Government Obligations” has the meaning specified in Section 15.2. 

“U.S. Person” means a citizen or resident of the United States, a corporation, partnership, limited liability company or other
entity created or organized in or under the laws of the United States, or an estate or trust the income of which is subject to United States Federal income taxation regardless of its source. 

“Vice President” includes, with respect to the Company or the Trustee, any Vice President of the Company or the Trustee, as the
case may be, whether or not designated by a number or word or words added before or after the title “Vice President.” 

Section 1.2. Compliance Certificates and Opinions. 
 Upon any application or request by the Company to the Trustee to take any action under any provision of this Indenture, including the execution and delivery of this Indenture, the Company shall furnish to
the Trustee an Officers’ Certificate stating that all conditions precedent, if any, provided for in this Indenture relating to the proposed action have been complied with and an Opinion of Counsel stating that in the opinion of such counsel all
such conditions precedent, if any, have been complied with, except that in the case of any such application or request as to which the furnishing of such documents is specifically required by any provision of this Indenture relating to such
particular application or request, no additional certificate or opinion need be furnished. 
 Every certificate or opinion with
respect to compliance with a condition or covenant provided for in this Indenture (other than certificates provided pursuant to Section 12.2) shall include: 

(1) a statement that each individual signing such certificate or opinion has read such covenant or condition and the
definitions herein relating thereto; 
 (2) a brief statement as to the nature and scope of the examination or
investigation upon which the statements or opinions contained in such certificate or opinion are based; 
 (3) a
statement that, in the opinion of each such individual, he has made such examination or investigation as is necessary to enable him to express an informed opinion as to whether or not such covenant or condition has been complied with; and

  
 10 

  
 (4) a
statement as to whether, in the opinion of each such individual, all such conditions and/or covenants have been complied with. 
 Every such
certificate or opinion provided under this Indenture shall be without personal recourse to the individual executing the same and may include an express statement to such effect. 
 Section 1.3. Form of Documents Delivered to Trustee. 
 In any case
where several matters are required to be certified by, or covered by an opinion of, any specified Person, it is not necessary that all such matters be certified by, or covered by the opinion of, only one such Person, or that they be so certified or
covered by only one document, but one such Person may certify or give an opinion with respect to some matters and one or more other such Persons as to other matters, and any such Person may certify or give an opinion as to such matters in one or
several documents. 
 Any certificate or opinion of an officer of the Company may be based, insofar as it relates to legal
matters, upon a certificate or opinion of, or representations by, counsel, unless such officer knows, or in the exercise of reasonable care should know, that the certificate or opinion or representations with respect to the matters upon which such
officer’s certificate or opinion is based are erroneous. Any such certificate or Opinion of Counsel may be based, insofar as it relates to factual matters, upon a certificate or opinion of, or representations by, an officer or officers of the
Company stating that the information with respect to such factual matters is in the possession of the Company, unless such counsel knows, or in the exercise of reasonable care should know, that the certificate or opinion or representations with
respect to such matters are erroneous. 
 Where any Person is required to make, give or execute two or more applications,
requests, consents, certificates, statements, opinions or other instruments under this Indenture, they may, but need not, be consolidated and form one instrument. All applications, requests, consents, certificates, statements, opinions or other
instruments given under this Indenture shall be without personal recourse to any individual giving the same and may include an express statement to such effect. 
 Section 1.4. Notices, Etc., to Trustee and Company. 
 Any Act of
Holders or other document provided or permitted by this Indenture to be made upon, given or furnished to, or filed with: 
 (1) the Trustee by any Holder or by the Company shall be sufficient for every purpose hereunder (unless otherwise herein expressly provided) if made, given, furnished or filed in writing (including
telecopy) to or with the Trustee at its Corporate Trust Office; or 

  
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 (2) the
Company by the Trustee or by any Holder shall be sufficient for every purpose hereunder (unless otherwise herein expressly provided) if in writing (including telecopy) or mailed, first-class postage prepaid or airmail postage prepaid if sent from
outside the United States, to the Company addressed to it at the address of its principal office specified in the first paragraph of this instrument, to the attention of its Treasurer, or at any other address previously furnished in writing to the
Trustee by the Company. 
 Any such Act or other document shall be in the English language, except that any published notice may
be in an official language of the country of publication. 
 Section 1.5. Notice to Holders; Waiver. 

When this Indenture provides for notice to Holders of any event, such notice shall be sufficiently given to Holders (unless otherwise
herein expressly provided) if in writing and mailed, first-class postage prepaid, to such Holders as their names and addresses appear in the Security Register, within the time prescribed. 

In the event of suspension of regular mail service or by reason of any other cause it shall be impracticable to give notice to Holders of
Debt Securities by mail, such notification as shall be given with the approval of the Trustee shall constitute sufficient notice for every purpose hereunder. 
 Where this Indenture provides for notice in any manner, such notice may be waived in writing by the Person entitled to receive such notice, either before or after the event, and such waiver shall be the
equivalent of such notice. Waivers of notice by Holders shall be filed with the Trustee, but such filing shall not be a condition precedent to the validity of any action taken in reliance on such waiver. In any case where notice to Holders is given
by mail, neither the failure to mail such notice nor any defect in any notice so mailed to any particular Holder shall affect the sufficiency of such notice with respect to other Holders, and any notice which is mailed in the manner herein provided
shall be conclusively presumed to have been duly given. In any case where notice to Holders is given by publication, any defect in any notice so published as to any particular Holder shall not affect the sufficiency of such notice with respect to
other Holders, and any notice which is published in the manner herein provided shall be conclusively presumed to have been duly given. All notices given by publication shall be at the expense of the Company. 

Section 1.6. Conflict With Trust Indenture Act. 
 This Indenture is subject to, and shall be governed by, the provisions of the Trust Indenture Act. If any provision hereof limits, qualifies or conflicts with the duties imposed on any person by the
provisions of Sections 310 to 317, inclusive, of the Trust Indenture Act, the duties imposed by the Trust Indenture Act shall control. If any provision hereof limits, qualifies or conflicts with any provision of the Trust Indenture Act which is
automatically deemed to be included in this Indenture by any of the provisions of the Trust Indenture Act, such provision of the Trust Indenture Act shall control. If any provision of this Indenture modifies or excludes any provision of the Trust
Indenture Act which may be so modified or excluded, the former provision shall be deemed to apply to this Indenture as so modified or excluded. 

  
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 Section 1.7. Effect of
Headings and Table of Contents. 
 The Article and Section headings herein and in the Table of Contents are for convenience
only and shall not affect the construction hereof. 
 Section 1.8. Successors and Assigns. 

The Company shall have the right at all times to assign any of its respective rights or obligations under the Indenture to a direct or
indirect wholly owned Subsidiary of the Company, provided that, in the event of any such assignment, the Company shall remain primarily liable for such obligations. All covenants and agreements in this Indenture by the parties hereto shall bind
their respective successors and assigns and inure to the benefit of their permitted successors and assigns, whether so expressed or not. 

Section 1.9. Separability Clause. 
 In case any provision in this Indenture or in the Debt Securities shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be
affected or impaired thereby. 
 Section 1.10. Benefits of Indenture. 

Nothing in this Indenture or in the Debt Securities, express or implied, shall give to any Person, other than the parties hereto, any
Security Registrar, any Paying Agent and their successors hereunder, and the Holders, any benefit or any legal or equitable right, remedy or claim under this Indenture. 
 Section 1.11. Governing Law. 
 This Indenture, and the Debt Securities
shall be governed by and construed in accordance with the laws of the State of New York, without giving effect to its principles of conflicts of law. 
 Section 1.12. Legal Holidays. 
 Unless otherwise specified pursuant to
Section 3.1 or in any Debt Security, in any case where any Interest Payment Date, Redemption Date or Stated Maturity of any Debt Security of any series shall not be a Business Day at any Place of Payment for the Debt Securities of that series,
then (notwithstanding any other provision of this Indenture or of the Debt Securities) payment of principal (and premium, if any) or interest need not be made at such Place of Payment on such date, but may be made on the next succeeding Business Day
at such Place of Payment with the same force and effect as if made on the Interest Payment Date, Redemption Date or at the Stated Maturity, and no interest shall accrue on the amount so payable for the period from and after such Interest Payment
Date, Redemption Date or Stated Maturity, as the case may be, to such Business Day if such payment is made or duly provided for on such Business Day (unless otherwise specified). 

  
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 Section 1.13. Liability Solely
Corporate. 
 No recourse shall be had for the payment of the principal of (or premium, if any) or the interest on any Debt
Securities or any part thereof, or of the indebtedness represented thereby, or upon any obligation, covenant or agreement of this Indenture, against any incorporator, or against any shareholder, officer or director, as such, past, present or future,
of the Company (or any incorporator, shareholder, officer or director of any predecessor or successor corporation), either directly or through the Company (or any such predecessor or successor corporation), whether by virtue of any constitution,
statute or rule of law, or by the enforcement of any assessment or penalty or otherwise; it being expressly agreed and understood that this Indenture and all the Debt Securities are solely corporate obligations, and that no personal liability
whatsoever shall attach to, or be incurred by, any such incorporator, shareholder, officer or director, past, present or future, of the Company (or any incorporator, shareholder, officer or director of any such predecessor or successor corporation),
either directly or indirectly through the Company or any such predecessor or successor corporation, because of the indebtedness hereby authorized or under or by reason of any of the obligations, covenants, promises or agreements contained in this
Indenture or in any of the Debt Securities or to be implied herefrom or therefrom; and that any such personal liability is hereby expressly waived and released as a condition of, and as part of the consideration for, the execution of this Indenture
and the issue of Debt Securities; provided, however, that nothing herein or in the Debt Securities contained shall be taken to prevent recourse to and the enforcement of the liability, if any, of any shareholder or subscriber to capital stock upon
or in respect of the shares of capital stock not fully paid. 
 Section 1.14. No Security Interest Created. 

Nothing in this Indenture or in the Debt Securities, express or implied, shall be construed to constitute a security interest under the
Uniform Commercial Code or similar legislation, as now or hereafter enacted and in effect in any jurisdiction where property of the Company or its Subsidiaries is or may be located. 
 Section 1.15. Waiver of Jury Trial. 
 EACH OF THE COMPANY AND THE
TRUSTEE HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS INDENTURE, THE DEBT SECURITIES OR THE TRANSACTIONS CONTEMPLATED
HEREBY. 
 Section 1.16. U.S.A. Patriot Act. 
 The parties hereto acknowledge that in accordance with Section 326 of the U.S.A. Patriot Act, the Trustee, like all financial institutions and in order to help fight the funding of terrorism and
money laundering, is required to obtain, verify, and record information that identifies each person or legal entity that establishes a relationship or opens an account with the Trustee. The parties to this Indenture agree that they will provide the
Trustee with such information as it may request in order for the Trustee to satisfy the requirements of the U.S.A. Patriot Act. 

  
 14 

  
 Section 1.17. Force
Majeure. 
 The Trustee, Registrar and the Paying Agent shall not incur any liability for not performing any act or
fulfilling any duty, obligation or responsibility hereunder by reason of any occurrence beyond the control of the Trustee, Registrar and the Paying Agent (including but not limited to any act or provision of any present or future law or regulation
or governmental authority, any act of God or war, civil unrest, local or national disturbance or disaster, any act of terrorism, or the unavailability of the Federal Reserve Bank wire or facsimile or other wire or communication facility).

 ARTICLE II. 
 DEBT SECURITY FORMS 
 Section 2.1. Forms Generally. 

The Debt Securities of each series shall be substantially in one of the forms (including global form) established in or pursuant to a
Board Resolution or one or more indentures supplemental hereto, and shall have such appropriate insertions, omissions, substitutions and other variations as are required or permitted by this Indenture, and may have such letters, numbers or other
marks of identification or designation and such legends or endorsements placed thereon as the Company may deem appropriate and as are not inconsistent with the provisions of this Indenture, or as may be required to comply with any law or with any
rule or regulation made pursuant thereto or with any rule or regulation of any securities exchange, or to conform to usage, all as determined by the officers executing such Debt Securities as conclusively evidenced by their execution of such Debt
Securities. If the form of Debt Securities (or any Global Note) of a series is established in or pursuant to a Board Resolution, a copy of such Board Resolution shall be delivered to the Trustee, together with an Officers’ Certificate setting
forth the form of such Debt Securities or Global Notes, at or prior to the delivery of the Company Order contemplated by Section 3.3 for the authentication and delivery of such Debt Securities (or any such Global Note). 

The definitive Debt Securities of each series may be printed, lithographed or engraved or produced by any combination of these methods on
steel engraved borders or in any other manner, all as determined by the officers executing such Debt Securities, as conclusively evidenced by their execution of such Debt Securities. 

  
 15 

  
 Section 2.2. Form of
Trustee’s Certificate of Authentication. 
 The form of the Trustee’s certificate of authentication to be borne by
the Debt Securities shall be substantially as follows: 
 TRUSTEE’S CERTIFICATE OF AUTHENTICATION 

This is one of the Debt Securities of the series designated therein and referred to in the within-mentioned Indenture. 

 

			
	Deutsche Bank Trust Company Americas,
	as Trustee
		
	By:	 	  

	Authorized Signatory

 Section 2.3.
Securities in Global Form. 
 If any Debt Security of a series is issuable in global form (a “Global Note”),
such Global Note may provide that it shall represent the aggregate amount of Outstanding Debt Securities from time to time endorsed thereon and may also provide that the aggregate amount of Outstanding Debt Securities represented thereby may from
time to time be reduced or increased to reflect exchanges. Any endorsement of a Global Note to reflect the amount, or any increase or decrease in the amount, or changes in the rights of Holders, of Outstanding Debt Securities represented thereby
shall be made by the Trustee and in such manner as shall be specified in such Global Note. Any instructions by the Company with respect to endorsement or delivery or redelivery of a Global Note, after its initial issuance, shall be in writing but
need not comply with Section 1.2 and need not be accompanied by an Opinion of Counsel. 
 ARTICLE III. 

THE DEBT SECURITIES 

Section 3.1. Amount Unlimited; Issuable in Series. 
 The aggregate principal amount of Debt Securities which may be authenticated and delivered under this Indenture is unlimited. 
 The Debt Securities may be issued in one or more series. There shall be established in or pursuant to a Board Resolution and (subject to Section 3.3) set forth or determined in the manner provided in
an Officers’ Certificate, or established in one or more indentures supplemental hereto, prior to the issuance of Debt Securities of any series, to the extent applicable: 

(1) the title of the Debt Securities of the series (which shall distinguish the Debt Securities of such series from all
other series of Debt Securities) and whether such Securities are senior or subordinated; 
 (2) the aggregate
principal amount of such series of Debt Securities and any limit on the aggregate principal amount of the Debt Securities of the series which may be authenticated and delivered under this Indenture (except for Debt Securities authenticated and
delivered upon registration of transfer of, or in exchange for, or in lieu of, other Debt Securities of such series pursuant to Sections 3.4, 3.5, 3.6, 11.6 or 13.7); 

  
 16 

  
 (3) the
percentage of the principal amount at which the Debt Securities of such series will be issued and, if other than the principal amount thereof, the portion of the principal amount thereof payable upon declaration of acceleration of the maturity or
upon redemption thereof or the method by which such portion shall be determined; 
 (4) the date or dates on
which or periods during which the Debt Securities of the series may be issued, and the date or dates or the method by which such date or dates will be determined, and on which the principal, or any installments of principal of (and premium, if any,
on) the Debt Securities of such series are or may be payable (which, if so provided in or pursuant to such Board Resolution or supplemental indenture, may be determined by the Company from time to time as set forth in the Debt Securities of the
series issued from time to time); 
 (5) the rate or rates (which may be variable or fixed) at which the Debt
Securities of the series shall bear interest, if any, or the method by which such rate or rates shall be determined, the date or dates from which such interest, if any, shall accrue or the method by which such date or dates shall be determined
(which, in either case or both, if so provided in or pursuant to such Board Resolution or supplemental indenture, may be determined by the Company from time to time and set forth in the Debt Securities of the series issued from time to time); and
the Interest Payment Dates on which such interest shall be payable (or the method of determination thereof), if any, the Regular Record Date for any interest payable on any registered Debt Securities on any Interest Payment Date, the Person to whom
any interest on any registered Debt Security of the series shall be payable, if other than the Person in whose name that Debt Security (or one or more Predecessor Debt Securities) is registered at the close of business on the Regular Record Date for
such interest. 
 (6) the place or places, if any, in addition to or instead of the Corporate Trust Office of the
Trustee (in the case of Debt Securities) where the principal of (and premium, if any) and interest on Debt Securities of the series shall be payable; the extent to which, or the manner in which, any interest payable on any Global Note on an Interest
Payment Date will be paid, if other than in the manner provided in Section 3.7; and the manner in which any principal of, or premium, if any, on, any Global Note will be paid, if other than as set forth elsewhere herein and whether any Global
Note will require any notation to evidence payment of principal or interest; 
 (7) the obligation, if any, of
the Company to redeem, repay, purchase or offer to purchase Debt Securities of the series pursuant to any mandatory redemption, sinking fund or analogous provisions or upon other conditions or at the option of the Holder thereof and the period or
periods within which or the dates on which, the prices at which and the terms and conditions upon which the Debt Securities of the series shall be redeemed, repaid, purchased or offered to be purchased, in whole or in part, pursuant to such
obligation; 

  
 17 

  
 (8) the
right, if any, of the Company to redeem the Debt Securities of such series at its option and the period or periods within which, or the date or dates on which, the price or prices at which, and the terms and conditions upon which such Debt
Securities may be redeemed, if any, in whole or in part, at the option of the Company or otherwise; 
 (9) the
denominations of the Debt Securities if other than minimum denominations of $2,000 and any integral multiples of $1,000 in excess thereof (except as provided in Section 3.4); 

(10) whether the Debt Securities of the series are to be issued as Discount Securities and the amount of discount with
which such Debt Securities may be issued and, if other than the principal amount thereof, the portion of the principal amount of Debt Securities of the series which shall be payable upon declaration of acceleration of the Maturity thereof pursuant
to Section 5.2; 
 (11) if the provisions for the defeasance or discharge of the Debt Securities of such
series or of certain of the Company’s obligations with respect to such Debt Securities set forth herein shall be inapplicable and any provisions in modification of, in addition to or in lieu of such provisions; 

(12) whether provisions for payment of additional amounts or tax redemptions shall apply and, if such provisions shall
apply, such provisions; 
 (13) if other than Dollars, the Currency or Currencies in which payment of the
principal of (or premium, if any) or interest, if any, on the Debt Securities of the series shall be made or in which the Debt Securities of the series shall be denominated and the particular provisions applicable thereto in accordance with (and
amendments or modifications of the Indenture in connection therewith); 
 (14) the date as of which any Debt
Securities of the series shall be dated, if other than as set forth in Section 3.3; 
 (15) if the Debt
Securities of the series do not bear interest, the applicable dates for purposes of Section 7.1; 
 (16) any
addition to, or modification or deletion of, any Events of Default or covenants provided for with respect to Debt Securities of the series; 
 (17) whether the Debt Securities of the series shall be issued in whole or in part in the form of one or more Global Notes and, in such case, the Depositary for such Global Note or Notes; and the manner
in which and the circumstances under which Global Notes representing Debt Securities of the series may be exchanged for Debt Securities in definitive form, if other than, or in addition to, the manner and circumstances specified in
Section 3.4(b); 

  
 18 

  
 (18)
the designation, if any, of any depositaries, trustees (if other than the applicable Trustee), Paying Agents, Authenticating Agents, Security Registrars (if other than the Trustee) or other agents with respect to the Debt Securities of such series;

 (19) if the Debt Securities of such series will be issuable in definitive form only upon receipt of certain
certificates or other documents or upon satisfaction of certain conditions, the form and terms of such certificates, documents or conditions; 
 (20) whether the Debt Securities of such series will be convertible into shares of Common Stock or into other securities or other property (whether or not issued by, or the obligation of, the Company)
and, if so, the terms and conditions, which may be in addition to or in lieu of the provisions contained in this Indenture, upon which such Debt Securities will be so convertible, including the conversion price and the conversion period, including
provisions for adjustments thereto; 
 (21) the portion of the principal amount of the Debt Securities of such
series that will be payable upon declaration of acceleration of the maturity thereof, if other than the principal amount thereof; 
 (22) if other than as provided for herein, the nature, content and date for reports by the Company to the holders of the Debt Securities of such series; 

(23) the terms, if any, of any repurchase or remarketing rights; and 

(24) any other terms of the series (which terms shall not be inconsistent with the provisions of this Indenture).

 All Debt Securities of any one series shall be substantially identical except as to denomination, rate of interest, Stated
Maturity and the date from which interest, if any, shall accrue, which, as set forth above, may be determined by the Company from time to time as to Debt Securities of a series if so provided in or established pursuant to the authority granted in or
pursuant to a Board Resolution or in any such indenture supplemental hereto, and except as may otherwise be provided in or pursuant to such Board Resolution and (subject to Section 3.3) set forth in such Officers’ Certificate, or in any
such indenture supplemental hereto. All Debt Securities of any one series need not be issued at the same time, and unless otherwise provided, a series may be reopened without the consent of the Holders, for issuance of additional Debt Securities of
such series or to establish additional terms of such series of Debt Securities, which additional terms shall only be applicable to unissued or additional Debt Securities of such series. 

If any of the terms of a series of Debt Securities is established in or pursuant to a Board Resolution, a copy of such Board Resolution
shall be certified by the Secretary or an Assistant Secretary of the Company and delivered to the Trustee at or prior to the delivery of the Officers’ Certificate setting forth the terms of the series. 

  
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 Section 3.2.
Denominations. 
 In the absence of any specification pursuant to Section 3.1 with respect to the Debt Securities of
any series, the Debt Securities of such series shall be issuable only as Debt Securities in denominations of $2,000 and any integral multiple of $1,000 in excess thereof and shall be payable only in Dollars. 

Section 3.3. Execution, Authentication, Delivery and Dating. 
 The Debt Securities of any series shall be executed on behalf of the Company by its Chairman of the Board, a Vice Chairman, its Chief Executive Officer, its Chief Financial Officer, its Chief Operating
Officer, its President, one of its Vice Presidents or its Treasurer. The signature of any of these officers may be manual or facsimile. 
 Debt Securities bearing the manual or facsimile signatures of individuals who were at any time the proper officers of the Company shall bind the Company, notwithstanding that such individuals or any of
them have ceased to hold such offices prior to the authentication and delivery of such Debt Securities or did not hold such offices at the date of such Debt Securities. 
 At any time and from time to time after the execution and delivery of this Indenture, the Company may deliver Debt Securities of any series, executed by the Company, to the Trustee for authentication,
together with a Company Order for the authentication and delivery of such Debt Securities and the Trustee in accordance with the Company Order shall authenticate and deliver such Debt Securities. If all the Debt Securities of any one series are not
to be issued at one time and if a Board Resolution or the Officers’ Certificate or other document pursuant to a Board Resolution or supplemental indenture relating to such series shall so permit, such Company Order may set forth procedures
acceptable to the Trustee for the issuance of such Debt Securities and for the determination of the terms thereof, such as interest rate, Stated Maturity, date of issuance and date from which interest, if any, shall accrue. 

The Trustee shall be entitled to receive, and (subject to Section 6.1) shall be fully protected in relying upon, prior to the
authentication and delivery of the Debt Securities of such series, (i) the supplemental indenture or the Board Resolution by or pursuant to which the form and terms of such Debt Securities have been approved and (ii) an Opinion of Counsel
substantially to the effect that: 
 (1) the Company Order furnished by the Company to the Trustee in connection
with the authentication and delivery of such Debt Securities conforms to the requirements of this Indenture and constitutes sufficient authority hereunder for the Trustee to authenticate and deliver such Debt Securities; 

(2) the forms and terms (or, if applicable, the manner of determining the terms) of such Debt Securities are consistent
with the provisions of this Indenture; 
 (3) in the event that the forms or terms of such Debt Securities have
been established in a supplemental indenture, the execution and delivery of such supplemental indenture has been duly authorized by all necessary corporate action of the 

  
 20 

 
Company, such supplemental indenture has been duly executed and delivered by the Company and, assuming due authorization, execution and delivery by the Trustee, is a valid and binding obligation
enforceable against the Company in accordance with its terms, subject to applicable bankruptcy, insolvency and similar laws affecting creditors’ rights generally and subject, as to enforceability, to general principles of equity (regardless of
whether enforcement is sought in a proceeding in equity or at law) and subject to such other exceptions as counsel shall conclude do not materially affect the rights of the Holders of such Debt Securities; and 

(4) the execution and delivery of such Debt Securities have been duly authorized by all necessary corporate action of the
Company and such Debt Securities (if to be issued at the time of delivery of such Company Order) have been duly executed and delivered by the Company and, assuming due authentication by the Trustee and execution and delivery by the Company (if to be
issued after delivery of such Company Order in accordance with the foregoing procedures), are valid and binding obligations enforceable against the Company in accordance with their terms, entitled to the benefit of the Indenture, subject to
applicable bankruptcy, insolvency and similar laws affecting creditors’ rights generally and subject, as to enforceability, to general principles of equity (regardless of whether enforcement is sought in a proceeding in equity or at law) and
subject to such other exceptions as counsel shall conclude do not materially affect the rights of the Holders of such Debt Securities; and 
 (5) the amount of Debt Securities Outstanding of such series, together with the amount of such Debt Securities, does not exceed any limit established under the terms of this Indenture on the amount of
Debt Securities of such series that may be authenticated and delivered. 
 The Trustee shall not be required to authenticate
such Debt Securities if the issuance of such Debt Securities pursuant to this Indenture will affect the Trustee’s own rights, duties or immunities under the Debt Securities and this Indenture in a manner which is not reasonably acceptable to
the Trustee. 
 Each Debt Security shall be dated the date of its authentication. 

Notwithstanding the provisions of Section 3.1 and of the preceding paragraphs, if all Debt Securities of a series are not to be
originally issued at one time, it shall not be necessary to deliver the Board Resolution or any Officers’ Certificate or other document pursuant to a Board Resolution otherwise required pursuant to Section 3.1 or the Company Order, the
Officers’ Certificate and Opinion of Counsel otherwise required pursuant to such preceding paragraphs or Sections 1.2 and 2.1 at or prior to the authentication of each Debt Security of such series if such documents are delivered at or prior to
the authentication upon original issuance of the first Debt Security of such series to be issued. 

  
 21 

  
 With respect to Debt
Securities of a series that are not to be originally issued at one time, the Trustee may rely, as to the authorization by the Company of any of such Debt Securities, the forms and terms thereof and the legality, validity, binding effect and
enforceability thereof, upon the Opinion of Counsel and the other documents delivered pursuant to Sections 2.1 and 3.1 and this Section, as applicable, in connection with the first authentication of Debt Securities of such series. 

No Debt Security shall be entitled to any benefit under this Indenture or be valid or obligatory for any purpose unless there appears on
such Debt Security a certificate of authentication substantially in one of the forms provided for herein duly executed by an authorized officer of the Trustee or by an Authenticating Agent, and such certificate upon any Debt Security shall be
conclusive evidence, and the only evidence, that such Debt Security has been duly authenticated and delivered hereunder and is entitled to the benefits of this Indenture. Notwithstanding the foregoing, if any Debt Security shall have been duly
authenticated and delivered hereunder but never issued and sold by the Company, and the Company shall deliver such Debt Security to the Trustee for cancellation as provided in Section 3.8 together with a written statement (which need not comply
with Section 1.2) stating that such Debt Security has never been issued and sold by the Company, for all purposes of this Indenture such Debt Security shall be deemed never to have been authenticated and delivered hereunder and shall never be
entitled to the benefits of this Indenture. 
 Section 3.4. Temporary Debt Securities; Global Notes Representing Debt Securities.

 (a) Pending the preparation of definitive Debt Securities of any series, the Company may execute, and upon Company Order
the Trustee shall authenticate and deliver, temporary Debt Securities which are printed, lithographed, typewritten or otherwise produced, in any authorized denomination for Debt Securities of such series, substantially of the tenor of the definitive
Debt Securities in lieu of which they are issued and with such appropriate insertions, omissions, substitutions and other variations as the officers executing such Debt Securities may determine, as conclusively evidenced by their execution of such
Debt Securities. Every such temporary Debt Security shall be executed by the Company and shall be authenticated and delivered by the Trustee upon the same conditions and in substantially the same manner, and with the same effect, as the definitive
Debt Securities in lieu of which they are issued. 
 Except in the case of temporary Debt Securities in global form (which shall
be exchanged in accordance with the provisions of the following paragraphs), if temporary Debt Securities of any series are issued, the Company will cause definitive Debt Securities of such series to be prepared without unreasonable delay. After the
preparation of definitive Debt Securities of such series, the temporary Debt Securities of such series shall be exchangeable for definitive Debt Securities of such series, of a like Stated Maturity and with like terms and provisions, upon surrender
of the temporary Debt Securities of such series at the office or agency of the Company in a Place of Payment for such series, without charge to the Holder, except as provided in Section 3.5 in connection with a transfer. Upon surrender for
cancellation of any one or more temporary Debt Securities of any series, the Company shall execute and the Trustee shall authenticate and deliver in exchange therefor a like principal amount of definitive Debt Securities of the same series of
authorized denominations and of a like Stated Maturity and like terms and provisions. Until so exchanged, the temporary Debt Securities of any series shall in all respects be entitled to the same benefits under this Indenture as definitive Debt
Securities of such series. 

  
 22 

  
 (b) If the Company
shall establish pursuant to Section 3.1 that the Debt Securities of a series are to be issued in whole or in part in the form of one or more Global Notes, then the Company shall execute and the Trustee shall, in accordance with Section 3.3
and the Company Order with respect to such series, authenticate and deliver one or more Global Notes that (i) shall represent and shall be denominated in an amount equal to the aggregate principal amount of the Outstanding Debt Securities of
such series to be represented by one or more Global Notes, (ii) shall be registered in the name of the Depositary for such Global Note or Notes or the nominee of such depositary, and (iii) shall bear a legend substantially to the following
effect: “This Debt Security may not be transferred except as a whole by the Depositary to a nominee of the Depositary or by a nominee of the Depositary to the Depositary or another nominee of the Depositary or by the Depositary or any such
nominee to a successor Depositary or a nominee of such successor Depositary, unless and until this Debt Security is exchanged in whole or in part for Debt Securities in definitive form.” 

Notwithstanding any other provision of this Section or Section 3.5, unless and until it is exchanged in whole or in part for Debt
Securities in definitive form, a Global Note representing all or a portion of the Debt Securities of a series may not be transferred except as a whole by the Depositary for such series to a nominee of such depositary or by a nominee of such
depositary to such depositary or another nominee of such depositary or by such depositary or any such nominee to a successor Depositary for such series or a nominee of such successor depositary. 

If at any time the Depositary for the Debt Securities of a series notifies the Company that it is unwilling or unable to continue as
Depositary for the Debt Securities of such series or if at any time the Depositary for Debt Securities of a series shall no longer be a clearing agency registered and in good standing under the Securities Exchange Act of 1934, as amended, or other
applicable statute or regulation, the Company shall appoint a successor Depositary with respect to the Debt Securities of such series. If a successor Depositary for the Debt Securities of such series is not appointed by the Company within 90 days
after the Company receives such notice or becomes aware of such condition, the Company will execute, and the Trustee, upon receipt of a Company Order for the authentication and delivery of definitive Debt Securities of such series, will authenticate
and deliver, Debt Securities of such series in definitive form in an aggregate principal amount equal to the principal amount of the Global Note or Notes representing such series in exchange for such Global Note or Notes. 

The Company may at any time and in its sole discretion, subject to the procedures of the Depositary, determine that the Debt Securities
of any series issued in the form of one or more Global Notes shall no longer be represented by such Global Note or Notes. In such event, the Company will execute, and the Trustee, upon receipt of a Company Order for the authentication and delivery
of definitive Debt Securities of such series, will authenticate and deliver, Debt Securities of such series in definitive form and in an aggregate principal amount equal to the principal amount of the Global Note or Notes representing such series in
exchange for such Global Note or Notes. 
 If the Debt Securities of any series shall have been issued in the form of one or
more Global Notes and if an Event of Default with respect to the Debt Securities of such series shall have occurred and be continuing, the Company will promptly execute, and the Trustee, upon receipt of a Company Order for the authentication and
delivery of definitive Debt Securities of such series, will authenticate and deliver, Debt Securities of such series in definitive form and in an aggregate principal amount equal to the principal amount of the Global Note or Notes representing such
series in exchange for such Global Note or Notes. 

  
 23 

  
 If specified by the
Company pursuant to Section 3.1 with respect to Debt Securities of a series, the Depositary for such series of Debt Securities may surrender a Global Note for such series of Debt Securities in exchange in whole or in part for Debt Securities of
such series in definitive form on such terms as are acceptable to the Company and such depositary. Thereupon, the Company shall execute and the Trustee shall authenticate and deliver, without charge: 

(i) to each Person specified by the Depositary a new Debt Security or Securities of the same series, of any authorized
denomination as requested by such Person in an aggregate principal amount equal to and in exchange for such Person’s beneficial interest in the Global Note; and 

(ii) to the Depositary a new Global Note in a denomination equal to the difference, if any, between the principal amount
of the surrendered Global Note and the aggregate principal amount of Debt Securities delivered to Holders thereof. 
 Upon the
exchange of a Global Note for Debt Securities in definitive form, such Global Note shall be canceled by the Trustee. Debt Securities issued in exchange for a Global Note pursuant to this subsection (c) shall be registered in such names and in
such authorized denominations as the Depositary for such Global Note, pursuant to instructions from its direct or indirect participants or otherwise, shall instruct the Trustee. The Trustee shall, at the expense of the Company, deliver such Debt
Securities to the Persons in whose names such Debt Securities are so registered. 
 No holder of any beneficial interest in any
Global Note held on its behalf by a Depositary (or its nominee) shall have any rights under this Indenture with respect to such Global Note or any Debt Security represented thereby, and such Depositary may be treated by the Company, the Trustee, and
any agent of the Company or the Trustee as the owner of such Global Note or any Debt Security represented thereby for all purposes whatsoever. None of the Company, the Trustee nor any agent of the Company or the Trustee will have any responsibility
or liability for any aspect of the records relating to or payments made on account of beneficial ownership interests of a Global Note or maintaining, supervising or reviewing any records relating to such beneficial ownership interests.
Notwithstanding the foregoing, with respect to any Global Note, nothing herein shall prevent the Company, the Trustee, or any agent of the Company or the Trustee, from giving effect to any written certification, proxy or other authorization
furnished by a Depositary or impair, as between a Depositary and such holders of beneficial interest, the operation of customary practices governing the exercise of the rights of the Depositary (or its nominees) as Holder of any Debt Security.

  
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 Section 3.5.
Registration, Transfer and Exchange. 
 (a) The Company shall cause to be kept at the Corporate Trust Office of the Trustee a
register (the register maintained in such office or in any other office or agency of the Company in a Place of Payment being herein sometimes referred to as the “Security Register”) in which, subject to such reasonable regulations as it
may prescribe, the Company shall provide for the registration of Debt Securities and of transfers and exchanges of Debt Securities. Such Security Register shall be in written form in the English language or in any other form capable of being
accurately and completely converted into such form within a reasonable time. The Trustee is hereby appointed “Security Registrar” for the purpose of registering Debt Securities and registering transfers and exchanges of Debt Securities as
herein provided; provided, however, that the Company may appoint co-Security Registrars unless the terms of any series of Debt Securities provide otherwise. 
 Upon surrender for registration of transfer of any Debt Security of any series at the office or agency of the Company maintained for such purpose, the Company shall execute, and the Trustee shall
authenticate and deliver, in the name of the designated transferee, one or more new Debt Securities of the same series of like aggregate principal amount of such denominations as are authorized for Debt Securities of such series and of a like Stated
Maturity and with like terms and conditions. 
 Except as otherwise provided in Section 3.4 and this Section 3.5, at
the option of the Holder, Debt Securities of any series may be exchanged for other Debt Securities of the same series of like aggregate principal amount and of a like Stated Maturity and with like terms and conditions, upon surrender of the Debt
Securities to be exchanged at such office or agency. Whenever any Debt Securities are surrendered for exchange, the Company shall execute, and the Trustee shall authenticate and deliver, the Debt Securities which the Holder making the exchange is
entitled to receive. 
 (b) All Debt Securities issued upon any transfer or exchange of Debt Securities shall be valid
obligations of the Company, evidencing the same debt, and entitled to the same benefits under this Indenture, as the Debt Securities surrendered for such transfer or exchange. 
 Every Debt Security presented or surrendered for transfer or exchange shall (if so required by the Company or the Trustee) be duly endorsed, or be accompanied by a written instrument of transfer in form
satisfactory to the Company and the Security Registrar, duly executed, by the Holder thereof or his attorney duly authorized in writing. 
 No service charge will be made for any transfer or exchange of Debt Securities except as provided in Section 3.6. The Company may require payment of a sum sufficient to cover any tax or other
governmental charge that may be imposed in connection with any registration, transfer or exchange of Debt Securities, other than those expressly provided in this Indenture to be made at the Company’s own expense or without expense or without
charge to the Holders. 
 The Company shall not be required (i) to register, transfer or exchange Debt Securities of any
series during a period beginning at the opening of business 15 days before the day of the transmission of a notice of redemption of Debt Securities of such series selected for redemption under Section 13.3 and ending at the close of business on
the day of such transmission, or (ii) to register, transfer or exchange any Debt Security so selected for redemption in whole or in part, except the unredeemed portion of any Debt Security being redeemed in part. 

  
 25 

  
 If at any time the
Depositary for any permanent global Debt Securities of any series notifies the Company that it is unwilling or unable to continue as Depositary for such permanent global Debt Securities or if at any time the Depositary for such permanent global Debt
Securities shall no longer be eligible to so continue under applicable law, the Company shall appoint a successor Depositary eligible under applicable law with respect to such permanent global Debt Securities. If a successor Depositary eligible
under applicable law for such global Debt Securities is not appointed by the Company within 90 days after the Company receives such notice or becomes aware of such ineligibility or if there has occurred and is continuing an Event of Default with
respect to the Debt Securities of any series, the Company will execute, and the Trustee, upon receipt of the Company Order for the authentication and delivery of definitive registered Debt Securities of such series and tenor, will authenticate and
deliver such definitive registered Debt Securities of such series and tenor, in any authorized denominations, in an aggregate principal amount equal to the principal amount of such permanent global Debt Securities, in exchange for such permanent
global Debt Securities. 
 The Company may at any time and in its sole discretion determine that any permanent global Debt
Securities of any series shall no longer be maintained in global form. In such event the Company will execute, and the Trustee, upon receipt of the Company Order for the authentication and delivery of definitive registered Debt Securities of such
series and tenor in any authorized denominations, in an aggregate principal amount equal to the principal amount of such permanent global Debt Securities, in exchange for such permanent global Debt Securities. 

Section 3.6. Mutilated, Destroyed, Lost and Stolen Debt Securities. 

If (i) any mutilated Debt Security is surrendered to the Trustee at its Corporate Trust Office, or (ii) the Company and the
Trustee receive evidence to their satisfaction of the destruction, loss or theft of any Debt Security, and there is delivered to the Company and the Trustee such security or indemnity as may be satisfactory by them to save each of them and any
Paying Agent harmless, and neither the Company nor the Trustee receives notice that such Debt Security has been acquired by a bona fide purchaser, then the Company shall execute and upon Company Request the Trustee shall authenticate and deliver, in
exchange for or in lieu of any such mutilated, destroyed, lost or stolen Debt Security, a new Debt Security of the same series of like Stated Maturity and with like terms and conditions and like principal amount, bearing a number not
contemporaneously Outstanding, 
 In case any such mutilated, destroyed, lost or stolen Debt Security has become or is about to
become due and payable, the Company in its discretion may, instead of issuing a new Debt Security, pay the amount due on such Debt Security in accordance with its terms. 
 Upon the issuance of any new Debt Security under this Section, the Company may require the payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in respect thereto
and any other expenses (including the fees and expenses of the Trustee) connected therewith. 

  
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 Every new Debt
Security of any series issued pursuant to this Section shall constitute an original additional contractual obligation of the Company, whether or not the destroyed, lost or stolen Debt Security shall be at any time enforceable by anyone, and shall be
entitled to all the benefits of this Indenture equally and proportionately with any and all other Debt Securities of that series duly issued hereunder. 
 The provisions of this Section are exclusive and shall preclude (to the extent lawful) all other rights and remedies with respect to the replacement or payment of mutilated, destroyed, lost or stolen Debt
Securities. 
 Section 3.7. Payment of Interest; Interest Rights Preserved. 

(a) Unless otherwise specified as contemplated by Section 3.1 with respect to the Debt Securities of any series, interest on any Debt
Security which is payable and is punctually paid or duly provided for on any Interest Payment Date shall be paid to the Person in whose name such Debt Security (or one or more Predecessor Securities) is registered at the close of business on the
Regular Record Date for such interest notwithstanding the cancellation of such Debt Security upon any transfer or exchange subsequent to the Regular Record Date. Unless otherwise specified as contemplated by Section 3.1 with respect to the Debt
Securities of any series, payment of interest on Debt Securities shall be made at the place or places specified pursuant to Section 3.1 or, at the option of the Company, by check mailed to the address of the Person entitled thereto as such
address shall appear in the Security Register or, if provided pursuant to Section 3.1, by wire transfer to an account designated by the Holder by the Regular Record Date. 
 (b) Any interest on any Debt Security which is payable but is not punctually paid or duly provided for on any Interest Payment Date (herein called “Defaulted Interest”) shall forthwith cease to
be payable to the Holder on the relevant Regular Record Date by virtue of his having been such Holder, and such Defaulted Interest may be paid by the Company, at its election in each case, as provided in clause (1) or (2) below:

 (1) The Company may elect to make payment of any Defaulted Interest to the Persons in whose names such Debt
Securities (or their respective Predecessor Securities) are registered at the close of business on a Special Record Date for the payment of such Defaulted Interest, which shall be fixed in the following manner. The Company shall notify the Trustee
in writing of the amount of Defaulted Interest proposed to be paid on each such Debt Security and the date of the proposed payment, and at the same time the Company shall deposit with the Trustee an amount of money equal to the aggregate amount
proposed to be paid in respect of such Defaulted Interest or shall make arrangements satisfactory to the Trustee for such deposit prior to the date of the proposed payment, such money when deposited to be held in trust for the benefit of the Persons
entitled to such Defaulted Interest as in this clause provided. Thereupon the Trustee shall fix a Special Record Date for the payment of such Defaulted Interest which date shall be not more than 15 days and not less than 10 days prior to the date of
the proposed payment and not less than 10 days after the receipt by the Trustee of the notice of the proposed payment. The Trustee shall 

  
 27 

 
promptly notify the Company of such Special Record Date and, in the name and at the expense of the Company, shall cause notice of the proposed payment of such Defaulted Interest and the Special
Record Date therefor to be mailed, first-class postage prepaid, to the Holders of such Debt Securities at their addresses as they appear in the Security Register, not less than 10 days prior to such Special Record Date. Notice of the proposed
payment of such Defaulted Interest and the Special Record Date therefor having been mailed as aforesaid, such Defaulted Interest shall be paid to the Persons in whose names such Debt Securities (or their respective Predecessor Securities) are
registered at the close of business on such Special Record Date and shall no longer be payable pursuant to the following clause (2). 
 (2) The Company may make payment of any Defaulted Interest on Debt Securities in any other lawful manner not inconsistent with the requirements of any securities exchange on which such Debt Securities may
be listed, and upon such notice as may be required by such exchange, if, after notice given by the Company to the Trustee of the proposed payment pursuant to this clause, such manner of payment shall be deemed practicable by the Trustee. 

(c) Subject to the foregoing provisions of this Section, each Debt Security delivered under this Indenture upon transfer of or in
exchange for or in lieu of any other Debt Security shall carry the rights to interest accrued and unpaid, and to accrue, which were carried by such other Debt Security. 
 Section 3.8. Cancellation. 
 Unless otherwise specified pursuant
to Section 3.1 for Debt Securities of any series, all Debt Securities surrendered for payment, redemption, transfer, exchange or credit against any sinking fund shall, if surrendered to any Person other than the Trustee, be delivered to the
Trustee. All Debt Securities so delivered shall be promptly canceled by the Trustee. The Company may at any time deliver to the Trustee for cancellation any Debt Securities previously authenticated and delivered hereunder which the Company may have
acquired in any manner whatsoever, and may deliver to the Trustee (or to any other Person for delivery to the Trustee) for cancellation any Debt Securities previously authenticated hereunder which the Company has not issued, and all Debt Securities
so delivered shall be promptly canceled by the Trustee. No Debt Securities shall be authenticated in lieu of or in exchange for any Debt Securities canceled as provided in this Section, except as expressly permitted by this Indenture. All canceled
Debt Securities held by the Trustee shall be disposed of by the Trustee in accordance with its customary procedures. The acquisition of any Debt Securities by the Company shall not operate as a redemption or satisfaction of the indebtedness
represented thereby unless and until such Debt Securities are surrendered to the Trustee for cancellation. 
 Section 3.9.
Computation of Interest. 
 Except as otherwise specified pursuant to Section 3.1 for Debt Securities of any series,
interest on the Debt Securities of each series shall be computed on the basis of a 360-day year of twelve 30-day months. 

  
 28 

  
 Section 3.10. Currency
of Payments in Respect of Debt Securities. 
 Unless otherwise specified pursuant to Section 3.1 for Debt Securities of
any series, payment of the principal of (and premium, if any) and any interest on any Debt Security of such series will be made in Dollars. 

Section 3.11. CUSIP Numbers. 
 The Company in issuing Debt Securities may use “CUSIP” numbers (if then generally in use), and, if so, the Trustee shall use “CUSIP” numbers in notices of redemption as a
convenience to Holders; provided that any such notice may state that no representation is made as to the correctness of such numbers either as printed on the Debt Securities or as contained in any notice of a redemption and that reliance may
be placed only on the other identification numbers printed on the Debt Securities, and any such redemption shall not be affected by any defect in or omission of such numbers. The Company will promptly notify the Trustee in writing of any change in
the “CUSIP” numbers.  
 ARTICLE IV. 

SATISFACTION AND DISCHARGE 
 Section 4.1. Satisfaction and Discharge of Indenture. 
 This
Indenture, with respect to the Debt Securities of any series (if all series issued under this Indenture are not to be affected), shall, upon Company Request, cease to be of further effect with respect to any series of Debt Securities specified in
such Company Request (except as to any surviving rights of registration of transfer or exchange of such Debt Securities herein expressly provided for and rights to receive payments of principal (and premium, if any) and interest on such Debt
Securities) and the Trustee, at the expense of the Company, shall execute proper instruments acknowledging satisfaction and discharge of this Indenture with respect to such series of Debt Securities, when: 

(1) either 
 (A) all Debt Securities of such series theretofore authenticated and delivered (other than (i) Debt Securities of such series which have been destroyed, lost or stolen and which have been replaced or
paid as provided in Section 3.6 and (ii) Debt Securities of such series for whose payment money has theretofore been deposited in trust with the Trustee or any Paying Agent or segregated and held in trust by the Company and thereafter
repaid to the Company or discharged from such trust, as provided in Section 12.4) have been delivered to the Trustee for cancellation; or 
 (B) all Debt Securities of such series not theretofore delivered to the Trustee for cancellation, 
 (i) have become due and payable by reason of the giving of a notice of redemption or otherwise, or 

  
 29 

  
 (ii)
will become due and payable at their Stated Maturity within one year, or 
 (iii) are to be called for redemption
within one year under arrangements satisfactory to the Trustee for the giving of notice of redemption by the Trustee in the name, and at the expense, of the Company, 
 and the Company either complies with any other condition or terms specified pursuant to Section 3.1, or if not so specified in the case of (i), (ii) or (iii) of this subclause (B), has
irrevocably deposited or caused to be deposited with the Trustee as trust funds held in trust solely for the benefit of the Holders, cash in United States Dollars in an amount, U.S. Government Obligations (as defined in Section 15.2) which
through the payment of interest and principal in respect thereof in accordance with their terms will provide, not later than one day before the due date of any payment, money in an amount, or a combination thereof, in such amounts as will be
sufficient without consideration of any reinvestment of interest, to pay and discharge the entire indebtedness on such Debt Securities not delivered to the Trustee for cancellation for principal, premium, if any and accrued interest to the date of
such deposit (in the case of Debt Securities which have become due and payable) or to the Stated Maturity or Redemption Date, as the case may be; 
 (2) the Company has paid or caused to be paid all other sums payable hereunder by the Company; and 
 (3) the Company has delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel each stating that all conditions precedent herein provided for relating to the satisfaction and
discharge of this Indenture with respect to such series have been complied with. 
 Notwithstanding the satisfaction and discharge of this
Indenture, the obligations of the Company to the Trustee under Section 6.7, and if money shall have been deposited with the Trustee pursuant to subclause (B) of clause (1) of this Section, the obligations of the Trustee under
Section 4.2 and the last paragraph of Section 12.4, shall survive. 
 Section 4.2. Application of Trust Money, Etc.

 The Trustee and any Paying Agent shall promptly pay or return to the Company upon Company Request any moneys or U.S.
Government Obligations held by them at any time that are not required for the payment of the principal of (and premium, if any) and interest on the Debt Securities of any series for which money or U.S. Government Obligations have been deposited
pursuant to Section 4.1. 
 Subject to the provisions of the last paragraph of Section 12.4, all money deposited with
the Trustee pursuant to Section 4.1 shall be held in trust and applied by it, in accordance with the provisions of the Debt Securities, if any, and this Indenture, to the payment, either directly or through any Paying Agent (including the
Company acting as its own Paying Agent) as the Trustee may determine, to the Persons entitled thereto, of the principal (and premium, if any) and interest for whose payment such money has been deposited with the Trustee. 

  
 30 

  
 The Company shall pay
and shall indemnify the Trustee for any series of Debt Securities against any tax, fee or other charge imposed on or assessed against U.S. Government Obligations deposited pursuant to Section 4.1 or the interest and principal received in
respect of such U.S. Government Obligations other than any such tax, fee or other charge which by law is payable by or on behalf of Holders. The obligation of the Company under this Section 4.2 shall be deemed to be an obligation of the Company
under Section 6.7. 
 ARTICLE V. 
 REMEDIES 
 Section 5.1. Events of Default. 

“Event of Default” wherever used herein with respect to Debt Securities of any series, and unless otherwise provided with
respect to Debt Securities of any series pursuant to Section 3.1, means any one of the following events (whatever the reason for such Event of Default and whether it shall be voluntary or involuntary or be effected by operation of law, pursuant
to any judgment, decree or order of any court or any order, rule or regulation of any administrative or governmental body): 
 (1) default in the payment of any interest upon any Debt Security of such series when it becomes due and payable, and continuance of such default for a period of 30 days; or 

(2) default in the payment of the principal of (and premium, if any, on) any Debt Security of such series at its Maturity;
or 
 (3) default in the deposit of any sinking fund payment, when and as due by the terms of a Debt Security of
such series, and the continuance of such default for a period of 30 days; or 
 (4) default in the performance,
or breach, of any covenant or warranty of the Company with respect to such series in this Indenture (other than a covenant or warranty a default in whose performance or whose breach is elsewhere in this Section specifically dealt with or which
expressly has been included in this Indenture solely for the benefit of Debt Securities of a series other than such series), and continuance of such default or breach for a period of 90 days after receipt of notice given, by registered or certified
mail, to the Company by the Trustee or to the Company and the Trustee by the Holders of at least 25% in principal amount of the Outstanding Debt Securities of such series, a written notice specifying such default or breach and requiring it to be
remedied and stating that such notice is a “Notice of Default” hereunder; or 

  
 31 

  
 (5) the
entry of a decree or order for relief in respect of the Company by a court having jurisdiction in the premises in an involuntary case under the Federal bankruptcy laws, as now or hereafter constituted, or any other applicable Federal or State
bankruptcy, insolvency or other similar law, or a decree or order adjudging the Company a bankrupt or insolvent, or approving as properly filed a petition seeking reorganization, arrangement, adjustment or composition of or in respect of the Company
under any applicable Federal or State law, or appointing a receiver, liquidator, assignee, custodian, trustee, sequestrator (or other similar official) of the Company or of any substantial part of its property, or ordering the winding up or
liquidation of its affairs, and the continuance of any such decree or order unstayed and in effect for a period of 90 consecutive days; or 
 (6) the commencement by the Company of a voluntary case under the Federal bankruptcy laws, as now or hereafter constituted, or any other applicable Federal or State bankruptcy, insolvency or other similar
law, or the consent by it to the entry of an order for relief in an involuntary case under any such law or to the appointment of a receiver, liquidator, assignee, custodian, trustee, sequestrator (or other similar official) of the Company or of any
substantial part of its property, or the making by it of an assignment for the benefit of its creditors, or the admission by it in writing of its inability to pay its debts generally as they become due, or the taking of corporate action by the
Company in furtherance of any such action; or 
 (7) any other Event of Default provided with respect to Debt
Securities of that series pursuant to Section 3.1. 
 Section 5.2. Acceleration of Maturity; Rescission and Annulment.

 If an Event of Default (unless otherwise provided with respect to Debt Securities of any series pursuant to
Section 3.1, other than an Event of Default specified in clauses (5) or (6) of Section 5.1) with respect to Debt Securities of any series at the time Outstanding occurs and is continuing, then in every such case, unless the
principal of all Debt Securities shall have already become due and payable, the Trustee or the Holders of not less than 25% in principal amount of the Outstanding Debt Securities of such series may declare the principal amount (or, if any Debt
Securities of such series are Discount Securities or indexed securities, such portion of the principal amount of such Discount Securities as may be specified in the terms of such Discount Securities or indexed securities) of and all accrued but
unpaid interest on all the Debt Securities of such series to be due and payable immediately, by a notice in writing to the Company (and to the Trustee if given by Holders), and upon any such declaration such principal amount (or specified amount)
plus accrued and unpaid interest (and premium, if payable) shall become immediately due and payable. Unless otherwise provided with respect to Debt Securities of any series pursuant to Section 3.1, if an Event of Default specified in clauses
(5) or (6) of Section 5.1 occurs, such amount shall ipso facto become and be immediately due and payable without any declaration or other act on the part of the Trustee or any Holder. Upon payment of such amount, all
obligations of the Company in respect of the payment of principal of (and premium, if payable) and interest on the Debt Securities of such series shall terminate. 

  
 32 

  
 At any time after such
a declaration of acceleration with respect to Debt Securities of any series has been made and before a judgment or decree for payment of the money due has been obtained by the Trustee as hereinafter in this Article V provided, the Holders of a
majority in principal amount of the Outstanding Debt Securities of such series, by written notice to the Company and the Trustee, may rescind and annul such declaration and its consequences if 

(1) the Company has paid or deposited with the Trustee a sum sufficient to pay in the currency in which Debt Securities of
such series are payable 
 (A) all overdue installments of interest on all Debt Securities of such series,

 (B) the principal of (and premium, if any, on) any Debt Securities of such series which have become due
otherwise than by such declaration of acceleration and interest thereon at the rate or rates prescribed therefor in such Debt Securities, 
 (C) to the extent that payment of such interest is lawful, interest upon overdue installments of interest on each Debt Security of such series at the rate or rates prescribed therefor in such Debt
Securities or, if no such rate or rates are so prescribed, at the rate borne by the Debt Securities during the period of such default, and 
 (D) all sums paid or advanced by the Trustee hereunder and the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel; provided, however, that all sums
payable under this clause (D) shall be paid in Dollars; 
 and 

(2) All Events of Default with respect to Debt Securities of such series, other than the nonpayment of the principal of
Debt Securities of such series which has become due solely by such declaration of acceleration, have been cured or waived as provided in Section 5.13. 
 No such rescission and waiver shall affect any subsequent default or impair any right consequent thereon. 
 Section 5.3. Collection of Indebtedness and Suits for Enforcement by Trustee. 
 The Company covenants that if 
 (1) default is made in the payment
of any installment of interest on any Debt Security when such interest becomes due and payable and such default continues for a period of 30 days, 

  
 33 

  
 (2)
default is made in the payment of principal of (or premium, if any, on) any Debt Security at the Maturity thereof, or 
 (3) default is made in the making or satisfaction of any sinking fund payment or analogous obligation when the same becomes due pursuant to the terms of the Debt Securities of any series, and such default
continues for a period of 30 days, 
 the Company will, upon demand of the Trustee, pay to it, for the benefit of the Holders of such Debt
Securities, the amount then due and payable on such Debt Securities, for the principal (and premium, if any) and interest, if any, and, to the extent that payment of such interest shall be legally enforceable, interest upon the overdue principal
(and premium, if any) and upon overdue installments of interest, at the at the rate or rates prescribed therefor in such Debt Securities or, if no such rate or rates are so prescribed, at the rate borne by the Debt Securities; and, in addition
thereto, such further amount as shall be sufficient to cover the costs and expenses of collection, including the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel. 

If the Company fails to pay such amount forthwith upon such demand, the Trustee, in its own name and as trustee of an express trust, may
institute a judicial proceeding for the collection of the sums so due and unpaid, and may prosecute such proceeding to judgment or final decree, and may enforce the same against the Company or any other obligor upon such Debt Securities, and collect
the moneys adjudged or decreed to be payable in the manner provided by law out of the property of the Company or any other obligor upon such Debt Securities wherever situated. 
 If an Event of Default with respect to Debt Securities of any series occurs and is continuing, the Trustee may in its discretion proceed to protect and enforce its rights and the rights of the Holders of
Debt Securities of such series by such appropriate judicial proceedings as the Trustee shall deem most effectual to protect and enforce any such rights, whether for the specific enforcement of any covenant or agreement in this Indenture or in aid of
the exercise of any power granted herein, or to enforce any other proper remedy. 
 Section 5.4. Trustee May File Proofs of
Claim. 
 In case of the pendency of any receivership, insolvency, liquidation, bankruptcy, reorganization, arrangement,
adjustment, composition or other judicial proceedings, or any voluntary or involuntary case under the Federal bankruptcy laws, as now or hereafter constituted, relative to the Company or any other obligor upon the Debt Securities, of a particular
series or all or substantially all of the property of the Company or of such other obligor or their creditors, the Trustee (irrespective of whether the principal of such Debt Securities shall then be due and payable as therein expressed or by
declaration of acceleration or otherwise and irrespective of whether the Trustee shall have made any demand on the Company for the payment of overdue principal or interest) shall be entitled and empowered, by intervention in such proceeding or
otherwise, 

  
 34 

  
 (i) to
file and prove a claim for the whole amount of principal (or, if the Debt Securities of such series are Discount Securities, such portion of the principal amount as may be due and payable with respect to such series pursuant to a declaration in
accordance with Section 5.2) (and premium, if any) and interest owing and unpaid in respect of the Debt Securities of such series and to file such other papers or documents as may be necessary or advisable in order to have the claims of the
Trustee (including any claim for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel) and of the Holders of such Debt Securities allowed in such judicial proceeding, and 

(ii) to collect and receive any moneys or other property payable or deliverable on any such claims and to distribute the
same; and any receiver, assignee, trustee, custodian, liquidator, sequestrator (or other similar official) in any such proceeding is hereby authorized by each such Holder to make such payments to the Trustee, and in the event that the Trustee shall
consent to the making of such payments directly to such Holders, to pay to the Trustee any amount due it for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, and any other amounts due the
Trustee under Section 6.7. 
 Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to
or accept or adopt on behalf of any Holder any plan of reorganization, arrangement, adjustment or composition affecting the Debt Securities of such series or the rights of any Holder thereof, or to authorize the Trustee to vote in respect of the
claim of any Holder in any such proceeding. 
 Section 5.5. Trustee May Enforce Claims Without Possession of Debt Securities.

 All rights of action and claims under this Indenture or the Debt Securities of any series may be prosecuted and enforced
by the Trustee without the possession of any of such Debt Securities or the production thereof in any proceeding relating thereto, and any such proceeding instituted by the Trustee shall be brought in its own name, as trustee of an express trust,
and any recovery of judgment shall, after provision for the payment of the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, be for the ratable benefit of the Holders of the Debt Securities in
respect of which such judgment has been recovered. 
 Section 5.6. Application of Money Collected. 

Any money collected by the Trustee pursuant to this Article shall be applied in the following order, at the date or dates fixed by the
Trustee and, in case of the distribution of such money on account of principal (and premium, if any) or interest, upon presentation of the Debt Securities of any series in respect of which money has been collected and the notation thereon of the
payment if only partially paid and upon surrender thereof if fully paid: 
 FIRST: To the payment of all amounts
due the Trustee (including the reasonable compensation and the expenses and disbursements of its agents and counsel) amounts under Section 6.7; 

  
 35 

  
 SECOND:
To the payment of the amounts then due and unpaid for principal of (and premium, if any) and interest on the Debt Securities of such series, in respect of which or for the benefit of which such money has been collected ratably, without preference or
priority of any kind, according to the amounts due and payable on such Debt Securities for principal (and premium, if any) and interest, respectively; and 
 THIRD: The balance, if any, to the Person or Persons entitled thereto. 

Section 5.7. Limitation on Suits. 
 No Holder of any Debt Security of any series shall have any right to institute any action or proceeding, judicial or otherwise, at law or in equity or in bankruptcy or otherwise, with respect to this
Indenture, or for the appointment of a receiver, trustee, liquidator, custodian, sequestrator (or similar official) or for any other remedy hereunder, unless 
 (1) such Holder has previously given written notice to the Trustee of a continuing Event of Default with respect to such series, 

(2) the Holders of not less than 25% in principal amount of the Outstanding Debt Securities of such series shall have made
written request to the Trustee to institute proceedings in respect of such Event of Default in its own name as Trustee hereunder, 
 (3) such Holder or Holders have offered to the Trustee indemnity and/or security reasonably satisfactory to it against the costs, expenses and liabilities to be incurred in compliance with such request,

 (4) the Trustee for 60 days after its receipt of such notice, request and offer of indemnity has failed to
institute any such proceeding, and 
 (5) no direction inconsistent with such written request has been given to
the Trustee during such 60-day period by the Holders of a majority in principal amount of the Outstanding Debt Securities of such series; 
 it
being understood and intended that no one or more of such Holders shall have any right in any manner whatever by virtue of, or by availing of, any provision of this Indenture to affect, disturb or prejudice the rights of any other such Holders or of
the Holders of Outstanding Debt Securities of any other series (it being understood that the Trustee does not have an affirmative duty to ascertain whether or not such actions or forbearances are unduly prejudicial to such Holders), or to obtain or
to seek to obtain priority or preference over any other of such Holders or to enforce any right under this Indenture, except in the manner herein provided and for the equal and ratable benefit of all of such Holders. For the protection and
enforcement of the provisions of this Section 5.7, each and every Holder of Debt Securities of any series and the Trustee for such series shall be entitled to such relief as can be given at law or in equity. 

  
 36 

  
 Section 5.8.
Unconditional Right of Holders to Receive Principal, Premium and Interest. 
 Notwithstanding any other provision in this
Indenture, the Holder of any Debt Security shall have the right, which is absolute and unconditional, to receive payment of the principal of (and premium, if any) and (subject to Section 3.7) interest on such Debt Security on the respective
Stated Maturity or Maturities expressed in such Debt Security (or, in the case of redemption, on the Redemption Date) and to institute suit for the enforcement of any such payment and interest thereon, and such right shall not be impaired without
the consent of such Holder. 
 Section 5.9. Restoration of Rights and Remedies. 

If the Trustee or any Holder has instituted any proceeding to enforce any right or remedy under this Indenture and such proceeding has
been discontinued or abandoned for any reason, or has been determined adversely to the Trustee or to such Holder, then and in every such case the Company, the Trustee and the Holders shall, subject to any determination in such proceeding, be
restored severally and respectively to their former positions and rights hereunder, and thereafter all rights and remedies of the Company, the Trustee and the Holders shall continue as though no such proceeding had been instituted. 

Section 5.10. Rights and Remedies Cumulative. 
 Except as otherwise expressly provided elsewhere in this Indenture, no right or remedy herein conferred upon or reserved to the Trustee or to the Holders is intended to be exclusive of any other right or
remedy, and every right and remedy shall, to the extent permitted by law, be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or employment of any
right or remedy hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any other appropriate right or remedy. 

Section 5.11. Delay or Omission Not Waiver. 
 No delay or omission of the Trustee or of any Holder to exercise any right or remedy accruing upon any Event of Default shall impair any such right or remedy or constitute a waiver of any such Event of
Default or any acquiescence therein. Every right and remedy given by this Indenture or by law to the Trustee or to the Holders may be exercised from time to time, and as often as may be deemed expedient, by the Trustee or by the Holders, as the case
may be. 
 Section 5.12. Control By Holders. 
 The Holders of a majority in principal amount of the Outstanding Debt Securities of any series shall have the right to direct in writing the time, method and place of conducting any proceeding for any
remedy available to the Trustee or exercising any trust or power conferred by this Indenture on the Trustee with respect to the Debt Securities of such series, provided, that: 

(1) such direction shall not be in conflict with any rule of law or with this Indenture; 

  
 37 

  
 (2)
subject to the provisions of Section 6.1, the Trustee shall have the right to decline to follow any such direction if the Trustee in good faith shall, by a Responsible Officer or Responsible Officers of the Trustee, determine that the
proceeding so directed would be unjustly prejudicial to the Holders of Debt Securities of such series not joining in any such direction or would involve the Trustee in personal liability; and 

(3) the Trustee may take any other action deemed proper by the Trustee which is not inconsistent with such direction.

 Section 5.13. Waiver of Past Defaults. 
 The Holders of not less than a majority in aggregate principal amount of the Outstanding Debt Securities of any series may on behalf of the Holders of all the Debt Securities of any such series waive any
past default hereunder with respect to such series and its consequences, except a default: 
 (1) in the payment
of the principal of (or premium, if any) or interest on any Debt Security of such series, or in the payment of any sinking fund installment or analogous obligation with respect to the Debt Securities of such series; or 

(2) in respect of a covenant or provision hereof which pursuant to Article XI cannot be modified or amended without the
consent of the Holder of each Outstanding Debt Security of such series affected; provided that a majority in principal amount of the Outstanding Debt Securities of such series may rescind and annul a declaration of acceleration with respect to Debt
Securities of a given series, as provided in Section 5.2. 
 Upon any such waiver, such default shall cease to exist, and
any Event of Default arising therefrom shall be deemed to have been cured and not to have occurred, for every purpose of the Debt Securities of such series under this Indenture, but no such waiver shall extend to any subsequent or other default or
impair any right consequent thereon. 
 Section 5.14. Undertaking for Costs. 

All parties to this Indenture agree, and each Holder of any Debt Security by his acceptance thereof shall be deemed to have agreed, that
any court may in its discretion require, in any suit for the enforcement of any right or remedy under this Indenture, or in any suit against the Trustee for any action taken, suffered or omitted by it as Trustee, the filing by any party litigant in
such suit other than the Trustee of an undertaking to pay the costs of such suit, and that such court may in its discretion assess reasonable costs, including reasonable attorneys’ fees and expenses, against any party litigant in such suit,
having due regard to the merits and good faith of the claims or defenses made by such party litigant, but the provisions of this Section shall not apply to any suit instituted by the Company, to any suit instituted by the Trustee, to any suit
instituted by any Holder or group of Holders holding in the aggregate 

  
 38 

 
more than 10% in principal amount of the Outstanding Debt Securities of any series, or to any suit instituted by any Holder of a Debt Security for the enforcement of the payment of the principal
of (or premium, if any) or interest on such Debt Security on or after the respective Stated Maturity or Maturities expressed in such Debt Security (or, in the case of redemption, on or after the Redemption Date). 

ARTICLE VI. 

THE TRUSTEE 

Section 6.1. Certain Duties and Responsibilities. 
 (a) Except during the continuance of an Event of Default with respect to the Debt Securities of any series: 
 (1) the Trustee undertakes to perform such duties and only such duties as are specifically set forth in this Indenture, and no implied covenants or obligations shall be read into this Indenture against
the Trustee; and 
 (2) in the absence of bad faith on its part, the Trustee may conclusively rely, as to the
truth of the statements and the correctness of the opinions expressed therein, upon certificates or opinions furnished to the Trustee and conforming to the requirements of this Indenture; but in the case of any such certificates or opinions which by
any provisions hereof are specifically required to be furnished to the Trustee, the Trustee shall be under a duty to examine the same to determine whether or not they conform to the requirements of this Indenture (but need not confirm or investigate
the accuracy of mathematical calculations or other facts stated therein). 
 (b) In case an Event of Default with respect to
Debt Securities of any series has occurred and is continuing, the Trustee shall, with respect to the Debt Securities of such series, exercise such of the rights and powers vested in it by this Indenture, and use the same degree of care and skill in
their exercise, as a prudent person would exercise or use under the circumstances in the conduct of such person’s own affairs. 
 (c) No provision of this Indenture shall be construed to relieve the Trustee from liability for its own negligent action, its own negligent failure to act, or its own willful misconduct, except that:

 (1) this subsection shall not be construed to limit the effect of subsection (a) of this Section;

 (2) the Trustee shall not be liable for any error of judgment made in good faith by a Responsible Officer,
unless it shall be proved that the Trustee was negligent in ascertaining the pertinent facts; 

  
 39 

  
 (3) the
Trustee shall not be liable with respect to any action taken, suffered or omitted to be taken by it with respect to Debt Securities of any series in good faith in accordance with the direction of the Holders of a majority in principal amount of the
Outstanding Debt Securities of such series relating to the time, method and place of conducting any proceeding for any remedy available to the Trustee, or exercising any trust or power conferred upon the Trustee, under this Indenture; 

(4) the Trustee is under no obligation or duty to pay interest on or invest any funds deposited with it except as
specifically provided in this Indenture, and all investment activities undertaken by the Trustee, if any, shall be at and pursuant to the written instruction of the Company; and 

(5) the Trustee shall not be required to expend or risk its own funds or otherwise incur any financial liability in the
performance of any of its duties hereunder, or in the exercise of any of its rights or powers, if it shall have reasonable grounds for believing that repayment of such funds or adequate indemnity and/or security against such risk or liability is not
reasonably assured to it. 
 (d) Whether or not therein expressly so provided, every provision of this Indenture relating to the
conduct or affecting the liability of or affording protection to the Trustee shall be subject to the provisions of this Section. 

Section 6.2. Notice of Defaults. 
 Within 90 days after the occurrence of any default hereunder with respect to Debt Securities of any series, the Trustee shall give notice to all Holders of Debt Securities of such series of such default
hereunder known to the Trustee, unless such default shall have been cured or waived; provided, however, that, except in the case of a default in the payment of the principal of (or premium, if any) or interest on any Debt Security of such series or
in the payment of any sinking fund installment with respect to Debt Securities of such series, the Trustee shall be protected in withholding such notice if and so long as the board of directors, the executive committee or a trust committee of
directors and/or Responsible Officers of the Trustee in good faith determine that the withholding of such notice is in the interest of the Holders of Debt Securities of such series; and provided, further, that in the case of any default of the
character specified in Section 5.1(4) with respect to Debt Securities of such series no such notice to Holders shall be given until at least 90 days after the occurrence thereof. For the purpose of this Section, the term “default”
means any event which is, or after notice or lapse of time or both would become, an Event of Default with respect to Debt Securities of such series. 
 Notice given pursuant to this Section 6.2 shall be transmitted by mail: 
 (1) to all Holders, as the names and addresses of the Holders appear in the Security Register; and 

  
 40 

  
 (2) to
each Holder of a Debt Security of any series whose name and address appear in the information preserved at the time by the Trustee in accordance with Section 7.2(a) of this Indenture. 
 Section 6.3. Certain Rights of Trustee. 
 Except as otherwise provided
in Section 6.1: 
 (a) the Trustee may rely and shall be protected in acting or refraining from acting upon any resolution,
certificate, statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture, note, other evidence of indebtedness or other paper or document believed by it to be genuine and to have been signed or presented by
the proper party or parties; 
 (b) any request or direction of the Company mentioned herein shall be sufficiently evidenced by
a Company Request or Company Order and any resolution of the Board of Directors shall be sufficiently evidenced by a Board Resolution; 
 (c) whenever in the administration of this Indenture the Trustee shall deem it desirable that a matter be proved or established prior to taking, suffering or omitting any action hereunder, the Trustee
(unless other evidence be herein specifically prescribed) may, in the absence of bad faith on its part, rely upon an Officers’ Certificate; 
 (d) the Trustee may consult with counsel and the advice of such counsel or any Opinion of Counsel shall be full and complete authorization and protection in respect of any action taken, suffered or
omitted by it hereunder in good faith and in reliance thereon in accordance with such advice or Opinion of Counsel; 
 (e) the
Trustee shall be under no obligation to exercise any of the rights or powers vested in it by this Indenture at the request or direction of any of the Holders of Debt Securities of any series pursuant to this Indenture, unless such Holders shall have
offered to the Trustee security or indemnity reasonably satisfactory to it against the costs, expenses and liabilities which might be incurred by it in compliance with such request or direction; 

(f) the Trustee shall not be bound to make any investigation into the facts or matters stated in any resolution, Officers’
Certificate or other certificate, statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture, note, other evidence of indebtedness or other paper or document, unless requested in writing to do so by not less
than a majority of the Holders of the Outstanding Debt Securities affected thereby, but the Trustee, in its discretion, may make such further inquiry or investigation into such facts or matters as it may see fit, and, if the Trustee shall determine
to make such further inquiry or investigation, it shall be entitled to examine the books, records and premises of the Company, personally or by agent or attorney; 
 (g) the Trustee may execute any of the trusts or powers hereunder or perform any duties hereunder either directly or by or through agents or attorneys and the Trustee shall not be responsible for any
misconduct or negligence on the part of any agent or attorney appointed with due care by it hereunder; 

  
 41 

  
 (h) the Trustee shall
not be charged with knowledge of any default or Event of Default hereunder unless (i) a Responsible Officer shall have actual knowledge thereof or (ii) the Trustee shall have received notice thereof in accordance with Section 1.4 from
the Company or any Holder and such notice is entitled “Notice of Default” and references this Indenture and the Debt Securities; and 
 (i) except as may be required in connection with any legal proceedings, the Trustee shall not be required to give any bond or surety in respect of the performance of its powers and duties hereunder.

 Section 6.4. Not Responsible for Recitals or Issuance of Debt Securities. 

The recitals contained herein and in the Debt Securities, except the Trustee’s certificates of authentication, shall be taken as the
statements of the Company, and the Trustee assumes no responsibility for their correctness. The Trustee makes no representations as to the validity or sufficiency of this Indenture or of the Debt Securities of any series. The Trustee shall not be
accountable for the use or application by the Company of any Debt Securities or the proceeds thereof. 
 Section 6.5. May Hold Debt
Securities. 
 The Trustee, any Paying Agent, the Security Registrar or any other agent of the Company, in its individual or
any other capacity, may become the owner or pledgee of Debt Securities, and, subject to Sections 6.8 and 6.13, may otherwise deal with the Company with the same rights it would have if it were not Trustee, Paying Agent, Security Registrar or such
other agent. 
 Section 6.6. Money Held in Trust. 
 Money held by the Trustee or any Paying Agent in trust hereunder need not be segregated from other funds except to the extent required by law. Neither the Trustee nor any Paying Agent shall be under any
liability for (i) interest on any money received by it hereunder except as otherwise agreed in writing with the Company or (ii) losses resulting from currency fluctuations or any investments made pursuant to 6.1(c)(4). 

Section 6.7. Compensation and Reimbursement. 
 The Company agrees: 
 (1) to pay to the Trustee from time to time
such compensation as the Company and the Trustee shall from time to time agree in writing for all services rendered by it hereunder (which compensation shall not be limited by any provision of law in regard to the compensation of a trustee of an
express trust); 
 (2) to reimburse the Trustee in Dollars upon its request for all reasonable expenses,
disbursements and advances incurred or made by the Trustee in accordance with any provision of this Indenture (including the reasonable compensation and the expenses and disbursements of its agents and counsel), except to the extent any such
expense, disbursement or advance may be attributable to its negligence, bad faith or willful misconduct; and 

  
 42 

  
 (3) to
indemnify in Dollars the Trustee and its directors, officers, employees, representatives, agents and counsel for, and to hold them harmless against, any and all loss, claim, liability or expense incurred without negligence, bad faith, or willful
misconduct on its part, arising out of or in connection with the acceptance or administration of this trust or performance of the Trustee’s duties hereunder, including the reasonable costs and expenses of defending itself against any claim or
liability in connection with the exercise or performance of any of the Trustee’s powers or duties hereunder, except to the extent that any such claim or liability may be attributable to the its or their negligence, bad faith or willful
misconduct. 
 As security for the performance of the obligations of the Company under this Section, the Trustee shall have a
claim senior to the Debt Securities upon all property and funds held or collected by the Trustee as such, except funds held in trust for the payment of amounts due on particular Debt Securities. 

When the Trustee incurs expenses or renders services in connection with an Event of Default specified in Section 5.1(5) or
Section 5.1(6), the expenses (including the reasonable charges and expenses of its counsel) and the compensation for the services are intended to constitute expenses of administration under any applicable Federal or State bankruptcy, insolvency
or other similar law. 
 The obligations of the Company under this Section 6.7 to compensate and indemnify the Trustee and
its directors, officers, employees, representatives, agents and counsel and to reimburse it and them for expenses, disbursements and advances shall constitute additional indebtedness under this Indenture and shall survive the satisfaction and
discharge of this Indenture and the resignation or removal of the Trustee. 
 In the event that the Trustee is also acting as
Paying Agent, Registrar or in any other capacity hereunder, the rights, privileges, protections, immunities and benefits afforded to the Trustee pursuant to this Section 6.7, including, without limitation, its right to be indemnified, shall
also be afforded to the Trustee in its capacity as such Paying Agent, Registrar or in such other capacity and each agent, custodian and other person employed to act hereunder. 
 Section 6.8. Disqualification; Conflicting Interests. 
 If the Trustee
has or shall acquire any conflicting interest within the meaning of the TIA with respect to the Debt Securities of any series, then, within 90 days after ascertaining that it has such conflicting interest, and if the default to which such
conflicting interest relates has not been cured or duly waived or otherwise eliminated before the end of such 90-day period, the Trustee shall either eliminate such conflicting interest or resign with respect to the Debt Securities of such series,
to the extent and in the manner provided by, and subject to the provisions of, the TIA and this Indenture, and the Company shall take prompt steps to have a successor appointed, in the manner and with the effect hereinafter specified in this
Article. Nothing herein shall prevent the Trustee from filing with the Commission the application referred to in the penultimate paragraph of Section 310(b) of the TIA. 

  
 43 

  
 Section 6.9. Corporate Trustee
Required; Eligibility. 
 There shall at all times be a Trustee hereunder which shall be a corporation organized and doing
business under the laws of the United States of America, any State thereof or the District of Columbia, authorized under such laws to exercise corporate trust powers, having a combined capital and surplus of at least $50,000,000, subject to
supervision or examination by Federal, State or District of Columbia authority. If such corporation publishes reports of condition at least annually, pursuant to law or to the requirements of the aforesaid supervising or examining authority, then
for the purposes of this Section, the combined capital and surplus of such corporation shall be deemed to be its combined capital and surplus as set forth in its most recent report of condition so published. Neither the Company nor any Person
directly or indirectly controlling, controlled by, or under common control with the Company shall serve as Trustee upon any Debt Securities. 

Section 6.10. Resignation and Removal; Appointment of Successor. 
 (a) No resignation or removal of the Trustee and no appointment of a successor Trustee pursuant to this Article shall become effective until the acceptance of appointment by the successor Trustee under
Section 6.11. 
 (b) The Trustee may resign at any time with respect to the Debt Securities of one or more series by giving
written notice thereof to the Company. If an instrument of acceptance by a successor Trustee shall not have been delivered to the Trustee within 60 days after the giving of such notice of resignation, the resigning Trustee may petition, at the
expense of the Company, any court of competent jurisdiction for the appointment of a successor Trustee with respect to the Debt Securities of such series. 
 (c) The Trustee may be removed at any time with respect to the Debt Securities of any series and a successor Trustee appointed by Act of the Holders of a majority in principal amount of the Outstanding
Debt Securities of such series, delivered to the Trustee and to the Company. If an instrument of acceptance by a successor Trustee shall not have been delivered to the Trustee within 60 days after the giving of such notice of removal, the Trustee
being removed may petition, at the expense of the Company, any court of competent jurisdiction for the appointment of a successor Trustee with respect to the Debt Securities of such series. 

(d) If at any time: 
 (1) the Trustee shall fail to comply with Section 6.8 with respect to the Debt Securities of any series after written request therefor by the Company or by any Holder who has been a bona fide Holder
of a Debt Security of such series for at least six months, or 
 (2) the Trustee shall cease to be eligible under
Section 6.9 with respect to the Debt Securities of any series and shall fail to resign after written request therefor by the Company or by any such Holder, or 

  
 44 

  
 (3) the
Trustee shall become incapable of acting or shall be adjudged a bankrupt or insolvent or a receiver of the Trustee or of its property shall be appointed or any public officer shall take charge or control of the Trustee or of its property or affairs
for the purpose of rehabilitation, conservation or liquidation, 
 then, in any such case, (i) the Company by a Board Resolution may remove
the Trustee with respect to all Debt Securities, or (ii) subject to Section 5.14, any Holder who has been a bona fide Holder of a Debt Security of any series for at least six months may, on behalf of himself and all others similarly
situated, petition any court of competent jurisdiction for the removal of the Trustee and the appointment of a successor Trustee for the Debt Securities of such series. 
 (e) If the Trustee shall resign, be removed or become incapable of acting, or if a vacancy shall occur in the office of Trustee for any cause, with respect to the Debt Securities of one or more series,
the Company, by a Board Resolution, shall promptly appoint a successor Trustee or Trustees with respect to the Debt Securities of that or those series (except as provided in Section 6.10(c)) (it being understood that any such successor Trustee
may be appointed with respect to the Debt Securities of one or more or all of such series and that at any time there shall be only one Trustee with respect to the Debt Securities of any particular series) and shall comply with the applicable
requirements of Section 6.11. If, within one year after such resignation, removal or incapability, or the occurrence of such vacancy, a successor Trustee with respect to the Debt Securities of any series shall be appointed by Act of the Holders
of a majority in principal amount of the Outstanding Debt Securities of such series delivered to the Company and the retiring Trustee, the successor Trustee so appointed shall, forthwith upon its acceptance of such appointment, become the successor
Trustee with respect to the Debt Securities of such series and to that extent supersede the successor Trustee appointed by the Company. If no successor Trustee with respect to the Debt Securities of any series shall have been so appointed by the
Company or the Holders of such series and accepted appointment in the manner hereinafter provided, any Holder who has been a bona fide Holder of a Debt Security of such series for at least six months may, subject to Section 5.14, on behalf of
himself and all others similarly situated, petition any court of competent jurisdiction for the appointment of a successor Trustee with respect to the Debt Securities of such series. 

(f) The Company shall give notice of each resignation and each removal of the Trustee with respect to the Debt Securities of any series
and each appointment of a successor Trustee with respect to the Debt Securities of any series in the manner and to the extent provided in Section 1.5 to the Holders of Debt Securities of such series. Each notice shall include the name of the
successor Trustee with respect to the Debt Securities of such series and the address of its Corporate Trust Office. 
 Section 6.11.
Acceptance of Appointment by Successor. 
 (a) In the case of an appointment hereunder of a successor Trustee with respect
to all Debt Securities, each such successor Trustee so appointed shall execute, acknowledge and deliver to the Company and to the retiring Trustee an instrument accepting such appointment, and thereupon the resignation or removal of the retiring
Trustee shall become effective and such successor Trustee, without any further act, deed or conveyance, shall become vested with all the rights, powers, trusts and duties of the retiring Trustee, but, on request of the Company or the successor
Trustee, such retiring Trustee shall, upon payment of its charges, execute and deliver 

  
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an instrument transferring to such successor Trustee all the rights, powers and trusts of the retiring Trustee, and shall duly assign, transfer and deliver to such successor Trustee all property
and money held by such retiring Trustee hereunder, subject nevertheless to its claim, if any, provided for in Section 6.7. 

(b) In case of the appointment hereunder of a successor Trustee with respect to the Debt Securities of one or more (but not all) series,
the Company, the retiring Trustee and each successor Trustee with respect to the Debt Securities of one or more series shall execute and deliver an indenture supplemental hereto wherein each successor Trustee shall accept such appointment and which
(1) shall contain such provisions as shall be necessary or desirable to transfer and confirm to, and to vest in, each successor Trustee all the rights, powers, trusts and duties of the retiring Trustee with respect to the Debt Securities of
that or those series to which the appointment of such successor Trustee relates, (2) if the retiring Trustee is not retiring with respect to all Debt Securities, shall contain such provisions as shall be deemed necessary or desirable to confirm
that all the rights, powers, trusts and duties of the retiring Trustee with respect to the Debt Securities of that or those series as to which the retiring Trustee is not retiring shall continue to be vested in the retiring Trustee, and
(3) shall add to or change any of the provisions of this Indenture as shall be necessary to provide for or facilitate the administration of the trusts hereunder by more than one Trustee, it being understood that nothing herein or in any such
supplemental indenture shall constitute such Trustees co-trustees of the same trust and that each such Trustee shall be trustee of a trust or trusts hereunder separate and apart from any other trust or trusts hereunder administered by any other such
Trustee; and upon the execution and delivery of any such supplemental indenture the resignation or removal of the retiring Trustee shall become effective to the extent provided therein and each such successor Trustee, without any further act, deed
or conveyance, shall become vested with all the rights, powers, trusts and duties of the retiring Trustee with respect to the Debt Securities of that or those series to which the appointment of such successor Trustee relates, but, on request of the
Company or any successor Trustee, such retiring Trustee shall duly assign, transfer and deliver to such successor Trustee all property and money held by such retiring Trustee hereunder with respect to the Debt Securities of that or those series to
which the appointment of such successor Trustee relates. 
 (c) Upon request of any such successor Trustee, the Company shall
execute any and all instruments for more fully and certainly vesting in and confirming to such successor Trustee all such rights, powers and trusts referred to in paragraph (a) or (b) of this Section, as the case may be. 

(d) No successor Trustee shall accept its appointment unless at the time of such acceptance such successor Trustee shall be qualified and
eligible under this Article. 
 Section 6.12. Merger, Conversion, Consolidation or Succession to Business. 

Any corporation into which the Trustee may be merged or converted or with which it may be consolidated, or any corporation resulting from
any merger, conversion or consolidation to which the trustee shall be a party, or any corporation succeeding to all or substantially all of the corporate trust business of the Trustee, shall be the successor of the Trustee hereunder, provided that
such corporation shall be otherwise qualified and eligible under this Article, without the execution or filing of any paper or any further act 

  
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on the part of any of the parties hereto. In case any Debt Securities shall have been authenticated, but not delivered, by the Trustee then in office, any successor by merger, conversion or
consolidation to such authenticating Trustee may adopt such authentication and deliver the Debt Securities so authenticated with the same effect as if such successor Trustee had itself authenticated such Debt Securities. In case any Debt Securities
shall not have been authenticated by such predecessor Trustee, any such successor Trustee may authenticate and deliver such Debt Securities, in either its own name or that of its predecessor Trustee, with the full force and effect which this
Indenture provides for the certificate of authentication of the Trustee. 
 Section 6.13. Preferential Collection of Claims Against
Company. 
 The Trustee shall comply with Section 311(a) of the Trust Indenture Act. A Trustee who has resigned or been
removed is subject to Section 311(a) of the Trust Indenture Act to the extent indicated therein. 
 Section 6.14. Appointment of
Authenticating Agent. 
 As long as any Debt Securities of a series remain Outstanding, upon a Company Request, there shall
be an authenticating agent (the “Authenticating Agent”) appointed, for such period as the Company shall elect, by the Trustee for such series of Debt Securities to act as its agent on its behalf and subject to its direction in connection
with the authentication and delivery of each series of Debt Securities for which it is serving as Trustee. Debt Securities of each such series authenticated by such Authenticating Agent shall be entitled to the benefits of this Indenture and shall
be valid and obligatory for all purposes as if authenticated by such Trustee. Wherever reference is made in this Indenture to the authentication and delivery of Debt Securities of any series by the Trustee for such series or to the Trustee’s
Certificate of Authentication, such reference shall be deemed to include authentication and delivery on behalf of the Trustee for such series by an Authenticating Agent for such series and a Certificate of Authentication executed on behalf of such
Trustee by such Authenticating Agent, except that only the Trustee may authenticate Debt Securities upon original issuance and pursuant to Section 3.6 hereof. Such Authenticating Agent shall at all times be a corporation organized and doing
business under the laws of the United States of America or of any State, authorized under such laws to exercise corporate trust powers, having a combined capital and surplus of at least $10,000,000 and subject to supervision or examination by
Federal or State authority. If such Authenticating Agent publishes reports of condition at least annually, pursuant to law or to the requirements of said supervising or examining authority, then for purposes of this Section the combined capital and
surplus of such Authenticating Agent shall be deemed to be its combined capital and surplus as set forth in its most recent report of condition so published. If at any time an Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, such Authenticating Agent shall resign immediately in the manner and with the effect specified in this Section. 
 Any corporation into which any Authenticating Agent may be merged or converted, or with which it may be consolidated, or any corporation resulting from any merger, conversion or consolidation to which any
Authenticating Agent shall be a party, or any corporation succeeding to all or substantially all the corporate agency business of any Authenticating Agent, shall continue to be the Authenticating Agent with respect to all series of Debt Securities
for which it served as Authenticating Agent without the execution or filing of any paper or any further act on the part of the Trustee for such series or such Authenticating Agent. 

  
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 The Trustee may at any
time terminate the agency of an Authenticating Agent by giving written notice thereof to such Authenticating Agent and to the Company in the manner set forth in Section 1.4. Any Authenticating Agent may at any time, and if it shall cease to be
eligible shall, resign by giving written notice of resignation to the applicable Trustee and to the Company. Upon receiving such a notice of resignation or upon such a termination, or in case at any time any Authenticating Agent shall cease to be
eligible in accordance with the provisions of this Section 6.14 with respect to one or more or all series of Debt Securities, the Trustee for such series shall upon Company Request appoint a successor Authenticating Agent, and the Company shall
provide notice of such appointment to all Holders of Debt Securities of such series in the manner and to the extent provided in Section 1.5. Any successor Authenticating Agent upon acceptance of its appointment hereunder shall become vested
with all rights, powers, duties and responsibilities of its predecessor hereunder, with like effect as if originally named as Authenticating Agent herein. The Company agrees to pay to the Authenticating Agent for each series from time to time
reasonable compensation for its services. The Authenticating Agent for the Debt Securities of any series shall have no responsibility or liability for any action taken by it as such at the direction of the Trustee for such series. 

If an appointment with respect to one or more series is made pursuant to this Section, the Debt Securities of such series may have
endorsed thereon, in addition to the Trustee’s certificate of authentication, an alternative certificate of authentication in the following form: 
 This is one of the Debt Securities of the series designated therein and referred to in the within-mentioned Indenture. 
  

							
		 		 	Deutsche Bank Trust Company Americas,
			
		 		 	As Trustee
			
		 		 	  

		 		 		 	As Authenticating Agent
				
		 		 	By:	 	  

	Dated:	 		 		 	Authorized Signatory

  
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 ARTICLE VII.

 HOLDERS’ LISTS AND REPORTS BY TRUSTEE AND COMPANY 
 Section 7.1. Company to Furnish Trustee Names and Addresses of Holders. 

If the Trustee is not acting as Security Registrar for the Debt Securities of each series for which it acts as Trustee, the Company will
furnish or cause to be furnished to the Trustee: 
 (a) semi-annually on a date not more than 15 days after each Regular Record
Date with respect to an Interest Payment Date, if any, for the Debt Securities of such series (or on semi-annual dates in each year to be determined pursuant to Section 3.1 if the Debt Securities of such series do not bear interest), a list, in
such form as the Trustee may reasonably require, of the names and addresses of the Holders as of the date 15 days next preceding each such Regular Record Date (or such semi-annual dates, as the case may be); and 

(b) at such other times as the Trustee may request in writing, within 30 days after the receipt by the Company of any such request, a
list of similar form and content as of a date not more than 15 days prior to the time such list is furnished. 
 Section 7.2.
Preservation of Information; Communication to Holders. 
 (a) The Trustee shall preserve, in as current a form as is
reasonably practicable, all information as to the names and addresses of Holders (i) contained in the most recent list furnished to the Trustee as provided in Section 7.1, (ii) received by it in the capacity of Security Registrar (if
so acting) hereunder and (iii) filed with it within the two preceding years pursuant to Section 313(c)(2) of the TIA. 

The Trustee may (i) destroy any list furnished to it as provided in Section 7.1 upon receipt of a new list so furnished,
(ii) destroy any information received by it as Paying Agent (if so acting) hereunder upon delivering to itself as Trustee, not earlier than 45 days after an Interest Payment Date, a list containing the names and addresses of the Holders
obtained from such information since the delivery of the next previous list, if any, (iii) destroy any list delivered to itself as Trustee which was compiled from information received by it as Paying Agent (if so acting) hereunder upon the
receipt of a new list so delivered, and (iv) destroy, not earlier than two years after filing, any information filed with it pursuant to Section 313(c)(2) of the TIA. 

(b) The rights of Holders to communicate with other Holders with respect to their rights under the Indenture or under the Debt
Securities, and the corresponding rights and privileges of the Trustee, shall be as provided by Section 312(b) of the Trust Indenture Act. 
 (c) Every Holder of Debt Securities, by receiving and holding the same, agrees with the Company and the Trustee that neither the Company nor the Trustee shall be held accountable by reason of the
disclosure of any such information as to the names and addresses of the Holders in accordance with Section 7.2(b), regardless of the source from which such information was derived, and that the Trustee shall not be held accountable by reason of
mailing of any material pursuant to a request made under Section 7.2(b). 
 Section 7.3. Reports by Trustee. 

Within 60 days after February 15 of each year, commencing with the later of February 15, 2011, or the first February 15
after the first issuance of Debt Securities pursuant to this Indenture, the Trustee shall, to the extent required by Section 313(a) of the Trust Indenture Act, transmit to all Holders of Debt Securities of any series with respect to which it
acts as Trustee, in the manner provided in Section 313(c) of the Trust Indenture Act, a brief report dated as of such February 15. 

  
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 A copy of each such
report shall, at the time of such transmission to Holders, be filed with each stock exchange upon which any Debt Securities of such series are listed, with the Commission and also with the Company. The Company will promptly notify the Trustee in
writing when any series of Debt Securities are listed on any stock exchange and any delisting thereof. 
 Section 7.4. Reports by
Company. 
 Unless otherwise specified with respect to a particular series of Debt Securities pursuant to Section 3.1,
the Company will: 
 (1) file with the Trustee (unless such reports have been filed on EDGAR), after the Company
has filed the same with the Commission, copies of the annual reports and of the information, documents and other reports (or copies of such portions of any of the foregoing as the Commission may from time to time by rules and regulations prescribe)
which the Company may be required to file with the Commission pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934, as amended; provided, however, that the Company shall not be required to deliver to the Trustee
any materials for which the Company has sought and obtained confidential treatment from the Commission; or, if the Company is not required to file information, documents or reports pursuant to either of said Sections, then it will file with the
Trustee and the Commission, in accordance with rules and regulations prescribed from time to time by the Commission, such of the supplementary and periodic information, documents and reports which may be required pursuant to Section 13 of the
Securities Exchange Act of 1934 in respect of a security listed and registered on a national securities exchange as may be prescribed from time to time in such rules and regulations; 

(2) file with the Trustee (unless such reports have been filed on EDGAR) and the Commission, in accordance with rules and
regulations prescribed from time to time by the Commission, such additional information, documents and reports with respect to compliance by the Company with the conditions and covenants of this Indenture as may be required from time to time by such
rules and regulations; and 
 (3) transmit to all Holders of Debt Securities, in the manner and to the extent
provided in Section 7.3, within 30 days after the filing thereof with the Trustee, such summaries of any information, documents and reports required to be filed by the Company pursuant to paragraphs (1) and (2) of this Section as may
be required by rules and regulations prescribed from time to time by the Commission. 
 The Company shall promptly notify the
Trustee in writing, including by electronic mail, of any EDGAR filings relevant to this Section. The Trustee shall have no responsibility whatsoever to determine if any EDGAR filings have been made by the Company. 

  
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 Delivery of such
reports, information and documents to the Trustee is for informational purposes only and the Trustee’s receipt of such shall not constitute constructive notice of any information contained therein or determinable from information contained
therein, including the Company’s compliance with any of its covenants hereunder (as to which the Trustee is entitled to rely exclusively on Officers’ Certificates). 
 ARTICLE VIII. 
 CONCERNING THE HOLDERS 

Section 8.1. Acts of Holders. 
 Any request, demand, authorization, direction, notice, consent, waiver or other action provided by this Indenture to be given or taken by Holders may be embodied in and evidenced by one or more
instruments of substantially similar tenor signed by such Holders in person or by an agent or proxy duly appointed in writing; and, except as herein otherwise expressly provided, such action shall become effective when such instrument or instruments
are delivered to the Trustee, and, where it is hereby expressly required, to the Company. Such instrument or instruments (and the action embodied therein and evidenced thereby) are herein sometimes referred to as the “Act” of the Holders
signing such instrument or instruments. Whenever in this Indenture it is provided that the Holders of a specified percentage in aggregate principal amount of the Outstanding Debt Securities of any series may take any Act, the fact that the Holders
of such specified percentage have joined therein may be evidenced (a) by the instrument or instruments executed by Holders in person or by agent or proxy appointed in writing, or (b) by the record of Holders voting in favor thereof at any
meeting of such Holders duly called and held in accordance with the provisions of Article IX, or (c) by a combination of such instrument or instruments and any such record of such a meeting of Holders. 

The Company may, at its option, by Company Order, fix in advance a record date for the determination of Holders of registered Debt
Securities entitled to give any request, demand, authorization, direction, notice, consent, waiver or other Act solicited by the Company, but the Company shall have no obligation to do so; provided, however, that the Company may not fix a
record date for the giving or making of any notice, declaration, request or direction referred to in the next sentence. In addition, the Trustee may, at its option, fix in advance a record date for the determination of Holders of registered Debt
Securities entitled to join in the giving or making of any Notice of Default, any declaration of acceleration referred to in Section 5.2, any request to institute proceedings referred to in Section 5.7 or any direction referred to in
Section 5.12. If any such record date is fixed, such request, demand, authorization, direction, notice, consent, waiver or other Act, or such notice, declaration, request or direction, may be given before or after such record date, but only the
Holders of registered Debt Securities of record at the close of business on the record date shall be deemed to be Holders of registered Debt Securities for the purposes of determining (i) whether Holders of the requisite proportion of the
Outstanding Debt Securities have authorized or agreed or consented to such Act (and for that purpose the Outstanding registered Debt Securities shall be computed as of the record date) and/or (ii) which Holders of registered Debt Securities may
revoke any such Act (notwithstanding Section 8.4); and any such Act, given as aforesaid, shall be effective whether or not the Holders of registered Debt Securities which authorized or agreed or consented to such Act remain Holders of
registered Debt Securities after such record date and whether or not the Debt Securities held by such Holders remain Outstanding after such record date. 

  
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 Section 8.2. Proof of
Ownership; Proof of Execution of Instruments by Holder. 
 The ownership of Debt Securities of any series shall be proved by
the Security Register for such series or by a certificate of the Security Registrar for such series. 
 Subject to the
provisions of Sections 6.1, 6.3 and 9.5, proof of the execution of a writing appointing an agent or proxy and of the execution of any instrument by a Holder or his agent or proxy shall be sufficient and conclusive in favor of the Trustee and the
Company if made in a manner satisfactory to the Trustee. 
 The record of any Holders’ meeting shall be proved in the
manner provided in Section 9.6. 
 The Trustee may in any instance require further or other proof with respect to any of
the matters referred to in this Section so long as the request is a reasonable one. 
 Section 8.3. Persons Deemed Owners.

 The Company, the Trustee and any agent of the Company or the Trustee may treat the Person in whose name any Debt Security
is registered as the owner of such Debt Security for the purpose of receiving payment of the principal of (and premium, if any) and (subject to Section 3.7) interest, if any, on such Debt Security and for all other purposes whatsoever, whether
or not such Debt Security be overdue, and neither the Company, the Trustee nor any agent of the Company or the Trustee shall be affected by notice to the contrary. All payments made to any Holder, or upon his order, shall be valid, and, to the
extent of the sum or sums paid, effectual to satisfy and discharge the liability for moneys payable upon such Debt Security. 

Section 8.4. Revocation of Consents; Future Holders Bound. 
 At any time prior to (but not after) the evidencing to the Trustee, as provided in Section 8.1, of the taking of any Act by the Holders of the percentage in aggregate principal amount of the
Outstanding Debt Securities specified in this Indenture in connection with such Act, any Holder of a Debt Security the number, letter or other distinguishing symbol of which is shown by the evidence to be included in such Debt Securities, the
Holders of which have consented to such Act, by filing written notice with the Trustee at the Corporate Trust Office and reference this Indenture and the Debt Securities and upon proof of ownership as provided in Section 8.2, may revoke such
Act so far as it concerns such Debt Security. Except as aforesaid, any such Act taken by the Holder of any Debt Security shall be conclusive and binding upon such Holder and upon all future Holders of such Debt Security and of any Debt Securities
issued on transfer or in lieu thereof or in exchange or substitution therefor, irrespective of whether or not any notation in regard thereto is made upon such Debt Security or such other Debt Securities. 

  
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 ARTICLE IX.

 HOLDERS’ MEETINGS 
 Section 9.1. Purposes of Meetings. 
 A meeting of Holders of any
or all series may be called at any time and from time to time pursuant to the provisions of this Article IX for any of the following purposes: 
 (1) to give any notice to the Company or to the Trustee for such series, or to give any directions to the Trustee for such series, or to consent to the waiving of any default hereunder and its
consequences, or to take any other action authorized to be taken by Holders pursuant to any of the provisions of Article V; 
 (2) to remove the Trustee for such series and appoint a successor Trustee pursuant to the provisions of Article VI; 
 (3) to consent to the execution of an indenture or indentures supplemental hereto pursuant to the provisions of Section 11.2; or 

(4) to take any other action authorized to be taken by or on behalf of the Holders of any specified aggregate principal
amount of the Outstanding Debt Securities of any one or more or all series, as the case may be, under any other provision of this Indenture or under applicable law. 
 Section 9.2. Call of Meetings by Trustee. 
 The Trustee for any
series may at any time call a meeting of Holders of such series to take any action specified in Section 9.1, to be held at such time or times and at such place or places as the Trustee for such series shall determine. Notice of every meeting of
the Holders of any series, setting forth the time and the place of such meeting and in general terms the action proposed to be taken at such meeting, shall be given to Holders of such series in the manner and to the extent provided in
Section 1.5. Such notice shall be given not less than 10 days nor more than 90 days prior to the date fixed for the meeting. 

Section 9.3. Call of Meetings by Company or Holders. 
 In case at any time the Company, pursuant to a Board Resolution, or the Holders of at least 25% in aggregate principal amount of the Outstanding Debt Securities of a series shall have requested the
Trustee for such series to call a meeting of Holders of such series by written request setting forth in reasonable detail the action proposed to be taken at the meeting, and the Trustee shall not have given the notice of such meeting within 10 days
after the receipt of such request, then the Company or such Holders may determine the time or times and the place or places for such meetings and may call such meetings to take any action authorized in Section 9.1, by giving notice thereof as
provided in Section 9.2. 

  
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 Section 9.4.
Qualifications For Voting. 
 To be entitled to vote at any meeting of Holders a Person shall be (a) a Holder of a Debt
Security of the series with respect to which such meeting is being held or (b) a Person appointed by an instrument in writing as agent or proxy by such Holder. The only Persons who shall be entitled to be present or to speak at any meeting of
Holders shall be the Persons entitled to vote at such meeting and their counsel and any representatives of the Trustee for the series with respect to which such meeting is being held and its counsel and any representatives of the Company and its
counsel. 
 Section 9.5. Regulations. 
 Notwithstanding any other provisions of this Indenture, the Trustee for any series may make such reasonable regulations as it may deem advisable for any meeting of Holders of such series, in regard to
proof of the holding of Debt Securities of such series and of the appointment of proxies, and in regard to the appointment and duties of inspectors of votes, the submission and examination of proxies, certificates and other evidence of the right to
vote, and such other matters concerning the conduct of the meeting as it shall deem appropriate. 
 The Trustee shall, by an
instrument in writing, appoint a temporary chairman of the meeting, unless the meeting shall have been called by the Company or by Holders of such series as provided in Section 9.3, in which case the Company or the Holders calling the meeting,
as the case may be, shall in like manner appoint a temporary chairman. A permanent chairman and a permanent secretary of the meeting shall be elected by a majority vote of the meeting. 

Subject to the provisos in the definition of “Outstanding,” at any meeting each Holder of a Debt Security of the series with
respect to which such meeting is being held or proxy therefor shall be entitled to one vote for each $1,000 principal amount (or such other amount as shall be specified as contemplated by Section 3.1) of Debt Securities of such series held or
represented by him; provided, however, that no vote shall be cast or counted at any meeting in respect of any Debt Security challenged as not Outstanding and ruled by the chairman of the meeting to be not Outstanding. The chairman of the meeting
shall have no right to vote other than by virtue of Outstanding Debt Securities of such series held by him or her or instruments in writing duly designating him or her as the person to vote on behalf of Holders of Debt Securities of such series. Any
meeting of Holders with respect to which a meeting was duly called pursuant to the provisions of Section 9.2 or 9.3 may be adjourned from time to time by a majority of such Holders present and the meeting may be held as so adjourned without
further notice. 
 Section 9.6. Voting. 
 The vote upon any resolution submitted to any meeting of Holders with respect to which such meeting is being held shall be by written ballots on which shall be subscribed the signatures of such Holders or
of their representatives by proxy and the serial number or numbers of the Debt Securities held or represented by them. The permanent chairman of the meeting shall appoint two inspectors of votes who shall count all votes cast at the meeting for or
against any resolution and who shall make and file with the secretary of the meeting their verified written reports in duplicate of all votes cast at the meeting. A record in duplicate of the proceedings of

  
 54 

 
each meeting of Holders shall be taken, and there shall be attached to said record the original reports of the inspectors of votes on any vote by ballot taken thereat and affidavits by one or
more persons having knowledge of the facts setting forth a copy of the notice of the meeting and showing that said notice was transmitted as provided in Section 9.2. The record shall show the serial numbers of the Debt Securities voting in
favor of or against any resolution. The record shall be signed and verified by the affidavits of the permanent chairman and secretary of the meeting, and one of the duplicates shall be delivered to the Company and the other to the Trustee to be
preserved by the Trustee. 
 Any record so signed and verified shall be conclusive evidence of the matters therein stated.

 ARTICLE X. 
 CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE 
 Section 10.1. Company
May Consolidate, Etc., Only on Certain Terms. 
 The Company shall not consolidate with or merge with or into (whether or not
the Company is the surviving corporation) or sell, assign, convey, transfer or lease its properties and assets substantially as an entirety to any Person, unless: 

(i) the Corporation formed by such consolidation or into which the Company is merged or the Person which acquires by
conveyance or transfer, or which leases, the properties and assets of the Company substantially as an entirety shall be a corporation organized and existing under the laws of the United States or any State or territory thereof or the District of
Columbia and shall expressly assume, by an indenture supplemental hereto, executed and delivered to the Trustee, in form satisfactory to the Trustee, the due and punctual payment of the principal of (and premium, if any) and interest on all the Debt
Securities and the performance of every covenant of this Indenture on the part of the Company to be performed or observed, including providing for conversion or exchange rights in accordance with the terms of the Debt Securities; 

(ii) immediately after giving effect to such transaction, no Event of Default, and no event which, after notice or lapse
of time, or both, would become an Event of Default, shall have happened and be continuing; 
 (iii) the Company
has delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel each stating that such consolidation, merger, conveyance, transfer or lease and such supplemental indenture, if any, comply with this Article and that all
conditions precedent herein provided for relating to such transaction have been complied with; and 
 (iv) such
other conditions as may be specified under Section 3.1 with respect to any series of Debt Securities have been complied with. 

  
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 Section 10.2. Successor
Corporation Substituted. 
 Upon any consolidation with or merger into any other Corporation, or any conveyance, transfer or
lease of the properties and assets of the Company substantially as an entirety in accordance with Section 10.1, the successor corporation formed by such consolidation or into which the Company is merged or to which such conveyance, transfer or
lease is made shall succeed to, and be substituted for, and may exercise every right and power of, the Company under this Indenture with the same effect as if such successor corporation had been named as the Company herein, and thereafter the
predecessor Person (except in the case of a lease) shall be relieved of all obligations and covenants under this Indenture and the Debt Securities. 
 ARTICLE XI. 
 SUPPLEMENTAL INDENTURES 

Section 11.1. Supplemental Indentures Without Consent of Holders. 

Without the consent of any Holders, the Company, when authorized by a Board Resolution, and the Trustee for the Debt Securities of any
series, at any time and from time to time, may enter into one or more indentures supplemental hereto, in form satisfactory to the Trustee, for any of the following purposes: 

(1) to evidence the succession of another Corporation to the rights of the Company and the assumption by such successor of
the covenants, agreements and obligations of the Company contained herein and in the Debt Securities; or 
 (2)
to add to the covenants of the Company, for the benefit of the Holders of all or any series of Debt Securities (and if such covenants are to be for the benefit of less than all series, stating that such covenants are expressly being included solely
for the benefit of such series), or to surrender any right or power herein conferred upon the Company; or 
 (3)
to add any additional Events of Default (and if such Events of Default are to be applicable to less than all series, stating that such Events of Default are expressly being included solely to be applicable to such series); or 

(4) to change or eliminate any of the provisions of this Indenture, provided that any such change or elimination shall
become effective only when there is no Outstanding Debt Security of any series created prior to the execution of such supplemental indenture which is entitled to the benefit of such provision and as to which such supplemental indenture would apply;
or 
 (5) to secure the Debt Securities or to provide that any of the Company’s obligations under any series
of the Debt Securities shall be guaranteed and the terms and conditions for the release or substitution of such security or guarantee; or 

  
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 (6) to
supplement any of the provisions of this Indenture to such extent as shall be necessary to permit or facilitate the defeasance and discharge of any series of Debt Securities pursuant to Article IV or XV, provided that any such action shall not
adversely affect the interests of the Holders of Debt Securities of such series or any other series of Debt Securities; or 
 (7) to establish the form or terms of Debt Securities of any series as permitted by Sections 2.1 and 3.1, including providing for conversion or other rights as contemplated by Section 3.1; or

 (8) to evidence and provide for the acceptance of appointment hereunder by a successor Trustee with respect to
one or more series of Debt Securities and to add to or change any of the provisions of this Indenture as shall be necessary to provide for or facilitate the administration of the trusts hereunder by more than one Trustee, pursuant to the
requirements of Sections 6.10 and 6.11; or 
 (9) to cure any ambiguity, or to correct or supplement any
provision herein, or in any supplemental indenture, which may be defective or inconsistent with any other provision herein, to eliminate any conflict between the terms hereof and the Trust Indenture Act or to make any other provisions with respect
to matters or questions arising under this Indenture which shall not be inconsistent with any provision of this Indenture; provided any such action shall not adversely affect the interests of the Holders of Outstanding Debt Securities of any series
created prior to the execution of such supplemental indenture; or 
 (10) to change conversion rights in
accordance with Section 16.4. 
 Section 11.2. Supplemental Indentures With Consent of Holders. 

With the written consent of the Holders of not less than a majority in principal amount of all Outstanding Debt Securities affected by
such supplemental indenture, by Act of said Holders delivered to the Company and the Trustee, the Company, when authorized by a Board Resolution, and the Trustee may enter into an indenture or indentures supplemental hereto for the purpose of adding
any provisions to or changing in any manner or eliminating any of the provisions of this Indenture or of modifying in any manner the rights of the Holders under this Indenture of such Debt Securities; provided, however, that no such supplemental
indenture shall, without the consent of the Holder of each Outstanding Debt Security affected thereby, 
 (1)
except as specifically provided with respect to any series of Debt Securities pursuant to Section 3.1, (a) change the Stated Maturity of the principal of, or installment of interest, if any, on, any Debt Security, or (b) reduce the
principal amount thereof or the interest thereon or any premium payable upon redemption thereof (provided that a requirement to offer to repurchase Debt Securities shall not be deemed a redemption for this purpose), or (c) change the currency
in which the principal of (and premium, if any) or interest on such Debt Security is denominated or payable, or (d) reduce the amount of the principal of a Discount Security that would be due and payable upon a declaration of acceleration of
the Maturity thereof pursuant to 

  
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Section 5.2, or (e) reduce the amount of, or postpone the date fixed for, any payment under any sinking fund or analogous provisions for any Debt Security, or (f) impair the right
to institute suit for the enforcement of any payment on or after the Stated Maturity thereof (or, in the case of redemption, on or after the Redemption Date), or (g) adversely affect the right to convert any Debt Security into shares of Common
Stock of the Company as may be provided pursuant to Section 3.1; 
 (2) reduce the percentage in principal
amount of the Outstanding Debt Securities of any series, the consent of whose Holders is required for any supplemental indenture, or the consent of whose Holders is required for any waiver of compliance with certain provisions of this Indenture or
certain defaults hereunder and their consequences provided for in this Indenture; 
 (3) modify any of the
provisions of this Section, Section 5.13 or Section 12.7, except to increase any such percentage or to provide that certain other provisions of this Indenture cannot be modified or waived without the consent of the Holder of each
Outstanding Debt Security of each series affected thereby; provided, however, that this clause shall not be deemed to require the consent of any Holder with respect to changes in the references to “the Trustee” and concomitant changes in
this Section and Section 12.7, or the deletion of this proviso, in accordance with the requirements of Sections 6.10, 6.11 and 11.1(10). 
 It shall not be necessary for any Act of Holders under this Section to approve the particular form of any proposed supplemental indenture, but it shall be sufficient if such Act shall approve the
substance thereof. 
 A supplemental indenture which changes or eliminates any covenant or other provision of this Indenture
with respect to one or more particular series of Debt Securities, or which modifies the rights of the Holders of Debt Securities of such series with respect to such covenant or other provision, shall be deemed not to affect the rights under this
Indenture of the Holders of Debt securities of any other series. 
 Section 11.3. Execution of Supplemental Indentures.

 In executing, or accepting the additional trusts created by, any supplemental indenture permitted by this Article or the
modifications thereby of the trusts created by this Indenture, the Trustee shall receive, and (subject to Section 6.1) shall be fully protected in relying upon, an Officer’s Certificate and an Opinion of Counsel each stating that the
execution of such supplemental indenture is authorized or permitted by this Indenture and otherwise complying with Section 1.2 hereof. The Trustee may, but shall not be obligated to, enter into any such supplemental indenture which adversely affects
the Trustee’s own rights, duties or immunities under this Indenture or otherwise in any material respect. 

  
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 Section 11.4. Effect of
Supplemental Indentures. 
 Upon the execution of any supplemental indenture under this Article, this Indenture shall be
modified in accordance therewith, and such supplemental indenture shall form a part of this Indenture for all purposes; and every Holder of Debt Securities theretofore or thereafter authenticated and delivered hereunder shall be bound thereby.

 Section 11.5. Conformity With Trust Indenture Act. 

Every supplemental indenture executed pursuant to this Article shall conform to the requirements of the Trust Indenture Act as then in
effect. 
 Section 11.6. Reference in Debt Securities to Supplemental Indentures. 

Debt Securities of any series authenticated and delivered after the execution of any supplemental indenture pursuant to this Article may,
and shall if required by the Trustee, bear a notation in form approved by the Trustee as to any matter provided for in such supplemental indenture. If the Company shall so determine, new Debt Securities of any series so modified as to conform, in
the opinion of the Trustee and the Board of Directors, to any such supplemental indenture may be prepared and executed by the Company and authenticated and delivered by the Trustee in exchange for Outstanding Debt Securities of such series.

 Section 11.7. Notice of Supplemental Indenture. 
 Promptly after the execution by the Company and the appropriate Trustee of any supplemental indenture pursuant to Section 11.2, the Company shall transmit, in the manner and to the extent provided in
Section 1.5, to all Holders of any series of the Debt Securities affected thereby (with a copy to the Trustee), a notice setting forth in general terms the substance of such supplemental indenture; provided that failure to transmit any such
notice or any defect therein shall not affect the validity of any such supplemental indenture. 
 ARTICLE XII.

 COVENANTS 

Section 12.1. Payment of Principal, Premium and Interest. 
 The Company covenants and agrees for the benefit of each series of Debt Securities that it will duly and punctually pay the principal of (and premium, if any) and interest on the Debt Securities in
accordance with the terms of the Debt Securities and this Indenture. 
 Section 12.2. Officer’s Certificate as to Default.

 Unless otherwise specifically provided for with respect to any series of Debt Securities under Section 3.1, the
Company will deliver to the Trustee, on or before a date not more than four months after the end of each fiscal year of the Company (which on the date hereof ends on December 31 of each year) ending after the date hereof, a certificate of the
principal executive officer, principal financial officer or principal accounting officer of the Company stating whether or not to the best knowledge of the signer thereof the Company is in compliance with all covenants and conditions under this
Indenture, and, if the Company shall be in default, specifying all such defaults and the nature thereof of which such signer may have knowledge. For purposes of this Section, such compliance shall be determined without regard to any period of grace
or requirement of notice provided under this Indenture. 

  
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 Section 12.3.
Maintenance of Office or Agency. 
 The Company will maintain in each Place of Payment for each series of Debt Securities an
office or agency where Debt Securities of that series may be presented or surrendered for payment, where Debt Securities of that series may be surrendered for registration of transfer or exchange, where Debt Securities of that series that are
convertible may be surrendered for conversion, if applicable, and where notices and demands to or upon the Company in respect of the Debt Securities of that series and this Indenture may be served. The Trustee is hereby appointed Paying Agent and
the Corporate Trust Office of the Trustee is initially designated as the office or agency for the forgoing purposes. The Company will give prompt written notice to the Trustee of the location, and any change in the location, of such office or
agency. 
 The Company may also from time to time designate different or additional offices or agencies to be maintained for
such purposes (in or outside of such Place of Payment), and may from time to time rescind any such designations; provided, however, that no such designation or rescission shall in any manner relieve the Company of its obligations described in the
preceding paragraph. The Company will give prompt written notice to the Trustee of any such additional designation or rescission of designation and any change in the location of any such different or additional office or agency. 

Section 12.4. Money for Debt Securities; Payments to be Held in Trust. 

If the Company shall at any time act as its own Paying Agent with respect to any series of Debt Securities it will, on or before each due
date of the principal of (and premium, if any) or interest on any of the Debt Securities of such series, segregate and hold in trust for the benefit of the Persons entitled thereto a sum sufficient to pay the principal (and premium, if any) or
interest so becoming due until such sums shall be paid to such Persons or otherwise disposed of as herein provided, and will promptly notify the Trustee of its action or failure so to act. 

Whenever the Company shall have one or more Paying Agents with respect to any series of Debt Securities, it will, by 10:00 a.m. (New York
City time) on each due date of the principal (and premium, if any) or interest on any Debt Securities of such series, deposit with any such Paying Agent a sum sufficient to pay the principal (and premium, if any) or interest so becoming due, such
sum to be held in trust for the benefit of the Persons entitled thereto, and (unless any such Paying Agent is the Trustee) the Company will promptly notify the Trustee of its action or failure so to act. 

Notwithstanding any term herein to the contrary, in no instance shall the Trustee be under any duty or obligation (i) to maintain
any office or to act in any capacity as an agent for any purpose under this Indenture (or any supplement hereto) outside the United States, or (ii) to act as a Paying Agent in respect of any currency other than Dollars. 

  
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 The Company will cause
each Paying Agent with respect to any series of Debt Securities other than the Trustee to execute and deliver to the Trustee an instrument in which such Paying Agent shall agree with the Trustee, subject to the provisions of this Section, that such
Paying Agent will: 
 (1) hold all sums held by it for the payment of the principal of (and premium, if any) or
interest on Debt Securities of such series in trust for the benefit of the Persons entitled thereto until such sums shall be paid to such Persons or otherwise disposed of as herein provided; 

(2) give the Trustee notice of any default by the Company (or any other obligor upon the Debt Securities of such series)
in the making of any payment of principal (and premium, if any) or interest on the Debt Securities of such series; and 
 (3) at any time during the continuance of any such default, upon the written request of the Trustee, forthwith pay to the Trustee all sums so held in trust by such Paying Agent. 

The Company may at any time, for the purpose of obtaining the satisfaction and discharge of this Indenture or for any other purpose, pay,
or by Company Order direct any Paying Agent to pay, to the Trustee all sums held in trust by the Company or such Paying Agent, such sums to be held by the Trustee upon the same trusts as those upon which such sums were held by the Company or such
Paying Agent; and, upon such payment by any Paying Agent to the Trustee, such Paying Agent shall be released from all further liability with respect to such money. 
 Any money deposited with the Trustee or any Paying Agent, or then held by the Company, in trust for the payment of the principal of (and premium, if any) or interest on any Debt Security of any series and
remaining unclaimed for two years after such principal (and premium, if any) or interest has become due and payable shall be paid to the Company upon Company Request, or (if then held by the Company) shall be discharged from such trust; and the
Holder of such Debt Security shall thereafter, as an unsecured general creditor, look only to the Company for payment thereof, and all liability of the Trustee or such Paying Agent with respect to such trust money, and all liability of the Company
as trustee thereof, shall thereupon cease; provided, however, that the Trustee or such Paying Agent, before being required to make any such repayment, may at the expense of the Company cause to be transmitted, in the manner and to the extent
provided by Section 1.5, notice that such money remains unclaimed and that, after a date specified therein, which shall not be less than 30 days from the date of such notification, any unclaimed balance of such money then remaining will be
repaid to the Company. 
 Section 12.5. Restriction on Liens. 

Unless otherwise specified pursuant to Section 3.1, the Company agrees that it will not, nor will it permit any Restricted Subsidiary
to, create, incur, issue, assume or guarantee any Secured Debt without in any such case effectively providing, concurrently with the creation, incurrence, issuance, assumption or guarantee of any such Secured Debt, that the Debt Securities (together
with, if 

  
 61 

 
the Company shall so determine, any other indebtedness of or guaranteed by the Company or such Restricted Subsidiary ranking equally with the Debt Securities and then existing or thereafter
created) shall be secured equally and ratably with or prior to such Secured Debt so long as such Secured Debt shall be secured. The term “Secured Debt” means notes, bonds, debentures or other similar evidences of indebtedness for money
borrowed secured by any Lien. The foregoing restrictions shall not apply to: 
 (1) Liens on property, shares of stock or
Indebtedness of any entity existing at the time such entity becomes a Restricted Subsidiary; 
 (2) Liens on property or shares
of stock existing at the time of acquisition of such property or stock by the Company or a Restricted Subsidiary or existing as of the date of this Indenture; 
 (3) Liens to secure the payment of all or any part of the price of acquisition, construction or improvement of such property or stock by the Company or a Restricted Subsidiary, or to secure any Secured
Debt incurred by the Company or a Restricted Subsidiary, prior to, at the time of, or within 360 days after the later of the acquisition or completion of construction (including any improvements on an existing property), which Secured Debt is
incurred for the purpose of financing all or any part of the purchase price thereof or construction of improvements thereon; provided, however, that, in the case of any such acquisition, construction or improvement, the Lien shall not apply to any
property theretofore owned by the Company or a Restricted Subsidiary, other than, in the case of any such construction or improvement, any theretofore substantially unimproved real property on which the property or improvement so constructed is
located; 
 (4) Liens securing Secured Debt of a Restricted Subsidiary owing to the Company or to another Restricted Subsidiary;

 (5) Liens on property of an entity existing at the time such entity is merged into or consolidated with the Company or a
Restricted Subsidiary or at the time of a sale, lease or other disposition of the properties of an entity as an entirety or substantially as an entirety to the Company or a Restricted Subsidiary; 

(6) Liens on property of the Company or a Restricted Subsidiary in favor of the United States of America or any state thereof, or any
department, agency or instrumentality or political subdivision of the United States of America or any state thereof, or in favor of any other country or any political subdivision thereof, or any department, agency or instrumentality of such country
or political subdivision, to secure partial progress, advance or other payments pursuant to any contract or statute or to secure any indebtedness incurred for the purpose of financing all or any part of the purchase price or the cost of construction
of the property subject to such Liens; 
 (7) Liens upon any Principal Property, or any transfer or disposition of any Principal
Property, that is created or implemented as a necessary component of a bond for title transaction, payment in lieu of tax agreement or other tax incentive vehicle designed to provide the Company or any Subsidiary with certain ad valorem property tax
or other incentive savings; or 

  
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 (8) Liens incurred or
assumed in connection with the issuance of revenue bonds the interest on which is exempt from federal taxation pursuant to Section 103 of the Code and the regulations thereunder; 

(9) Liens to secure Hedging Obligations entered into in the ordinary course of business to purchase any raw material or other commodity
or to hedge risks or reduce costs with respect to the interest rate, currency or commodity exposure of the Company or any Restricted Subsidiary of the Company and not for speculative purposes. 

(10) any extension, renewal or replacement (or successive extensions, renewals or replacements) in whole or in part of any Lien referred
to in the foregoing clauses (1) through (9); provided, however, that the principal amount of Secured Debt secured thereby shall not exceed the principal amount of Secured Debt so secured at the time of such extension, renewal or replacement
(except any amounts committed at the date of the indenture),, and that such extension, renewal or replacement shall be limited to all or a part of the property which secured the Lien so extended, renewed or replaced (plus improvements and
construction on such property). 
 Notwithstanding the foregoing provisions of this Section 12.5, the Company and any one
or more Restricted Subsidiaries may, without securing the Securities, create, incur, issue, assume or guarantee Secured Debt secured by a Lien which would otherwise be subject to the foregoing restrictions in an aggregate amount which, together with
all other Secured Debt of the Company and its Restricted Subsidiaries which (if originally created, incurred, issued, assumed or guaranteed at such time) would otherwise be subject to the foregoing restrictions (not including Secured Debt permitted
to be secured under clauses (1) through (10) above), does not at the time exceed 15% of Consolidated Net Tangible Assets of the Company as shown on the financial statements of the Company as of the end of the fiscal year preceding the date
of determination. 
 Section 12.6. Restrictions on Sale and Leaseback Transactions. 

Unless otherwise specified pursuant to Section 3.1, the Company agrees that it will not, nor will it permit any Restricted Subsidiary
to, enter into any Sale and Leaseback Transaction unless: 
 (1) the Company or such Restricted Subsidiary would be entitled,
pursuant to the provisions of Section 12.5, to create, incur, issue, assume or guarantee indebtedness secured by a Lien upon such property at least equal in amount to the Attributable Debt in respect of such arrangement without equally and
ratably securing the Debt Securities; provided, however, that from and after the date on which such arrangement becomes effective, the Attributable Debt in respect of such arrangement shall be deemed for all purposes under Section 12.5 to be
Secured Debt subject to the provisions of Section 12.5; or 
 (2) since the date of this Indenture and within a period
commencing twelve months prior to the consummation of such Sale and Leaseback Transaction and ending twelve months after the consummation of such Sale and Leaseback Transaction, the Company or any Restricted Subsidiary, as the case may be, has
expended, or will expend, for the Principal Property an amount equal to (A) the net proceeds of such Sale and Leaseback Transaction, and the Company elects to designate such amount as a credit against such Sale and

  
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Leaseback Transaction, or (B) a part of the net proceeds of such Sale and Leaseback Transaction and the Company elects to designate such amount as a credit against such Sale and Leaseback
Transaction and applies an amount equal to the remainder of the net proceeds as provided in clause (3) hereof; or 
 (3)
such Sale and Leaseback Transaction does not come within the exceptions provided by clause (1) hereof and the Company does not make the election permitted by clause (2) hereof or makes such election only as a part of such net proceeds, in
either of which events the Company shall apply an amount in cash equal to the Attributable Debt in respect of such arrangement (less any amount elected under clause (2) hereof) to the retirement, within 360 days of the effective date of any
such arrangement, of indebtedness for borrowed money of the Company or any Restricted Subsidiary (other than indebtedness for borrowed money of the Company which is subordinated to the Debt Securities) which by its terms matures at or is extendible
or renewable at the sole option of the obligor without requiring the consent of the obligees to a date more than twelve months after the date of the creation of such indebtedness for borrowed money (it being understood that such retirement may be
made by prepayment of such indebtedness for borrowed money, if permitted by the terms thereof, as well as by payment at maturity and that at the option of the Company and pursuant to the terms of this Indenture, such indebtedness may include the
Debt Securities). 
 The term “Sale and Leaseback Transaction” means any arrangement with any Person providing for the
leasing by the Company or any Restricted Subsidiary of any Principal Property, whether such Principal Property is now owned or hereafter acquired (except for temporary leases for a term, including renewals at the option of the lessee, of not more
than three years and except for leases between the Company and a Restricted Subsidiary or between Restricted Subsidiaries), which property has been or is to be sold or transferred by the Company or such Restricted Subsidiary to such Person with the
intention of taking back a lease of such property. 
 The term “Attributable Debt” means the present value (discounted
at the weighted average interest rate borne by the Debt Securities Outstanding at the time of such Sale and Leaseback transaction compounded semiannually) of the obligation of a lessee for net rental payments during the remaining term of any lease
(including any period for which such lease has been extended). 
 Section 12.7. Waiver of Certain Covenants. 

The Company may omit in any particular instance to comply with any term, provision or condition set forth in any covenant not set forth
herein and specified pursuant to Section 3.1 to be applicable to the Debt Securities of any series and to be subject to this Section 12.7), with respect to the Debt Securities of such series, except as otherwise provided pursuant to
Section 3.1, with respect to the Debt Securities of such series if before the time for such compliance the Holders of at least a majority in principal amount of the Outstanding Debt Securities of such series shall, by Act of such Holders,
either waive such compliance in such instance or generally waive compliance with such term, provision or condition, but no such waiver shall extend to or affect such term, provision or condition except to the extent expressly so waived, and, until
such waiver shall become effective, the obligations of the Company and the duties of the Trustee in respect of any such term, provision or condition shall remain in full force and effect. 

  
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 ARTICLE XIII.

 REDEMPTION OF DEBT SECURITIES 
 Section 13.1. Applicability of Article. 
 Debt Securities of any
series which are redeemable before their Maturity shall be redeemable in accordance with their terms and (except as otherwise specified pursuant to Section 3.1 for Debt Securities of any series) in accordance with this Article. 

Section 13.2. Election to Redeem; Notice to Trustee. 
 The election of the Company to redeem any Debt Securities shall be evidenced by a Board Resolution. In case of any redemption at the election of the Company, the Company shall, not less than 30 nor more
than 60 days before the Redemption Date fixed by the Company (unless a shorter notice shall be satisfactory to the Trustee), notify the Trustee of such Redemption Date and of the principal amount of Debt Securities of such series to be redeemed. In
the case of any redemption of Debt Securities (a) prior to the expiration of any restriction on such redemption provided in the terms of such Debt Securities or elsewhere in this Indenture, or (b) pursuant to an election of the Company
which is subject to a condition specified in the terms of such Debt Securities or elsewhere in this Indenture, the Company shall furnish the Trustee with an Officers’ Certificate evidencing compliance with such restrictions or condition.

 Section 13.3. Selection by Trustee of Debt Securities to be Redeemed. 

Except in the case of a redemption in whole of the Debt Securities of such series, if less than all the Debt Securities of any series are
to be redeemed at the election of the Company, the particular Debt Securities to be redeemed shall be selected not more than 60 days prior to the Redemption Date by the Trustee, from the Outstanding Debt Securities of such series not previously
called for redemption on a pro rata basis, by lot or by such other method as the Trustee shall deem fair and appropriate and which may provide for the selection for redemption of portions (equal to the minimum authorized denomination for Debt
Securities of such series or any integral multiple thereof) of the principal amount of Debt Securities of such series in a denomination larger than the minimum authorized denomination for Debt Securities of such series pursuant to Section 3.2.
The portions of the principal amount of Debt Securities so selected for partial redemption shall be equal to the minimum authorized denominations for Debt Securities of such series pursuant to Section 3.2 or any integral multiple thereof,
except as otherwise set forth in the applicable form of Debt Securities. In any case when more than one Debt Security of such series is registered in the same name, the Trustee in its discretion may treat the aggregate principal amount so registered
as if it were represented by one Debt Security of such series. 
 The Trustee shall promptly notify the Company in writing of
the Debt Securities selected for redemption and, in the case of any Debt Securities selected for partial redemption, the principal amount thereof to be redeemed. 

  
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 If any Debt Security
selected for partial redemption is converted in part before the Redemption Date, the converted portion of such Debt Security shall be deemed, to the fullest extent practicable, to be the portion selected for redemption. Debt Securities which have
been converted during a selection of Debt Securities to be redeemed may be treated by the Trustee as Outstanding for the purpose of such selection. 
 For all purposes of this Indenture, unless the context otherwise requires, all provisions relating to the redemption of Debt Securities shall relate, in the case of any Debt Security redeemed or to be
redeemed only in part, to the portion of the principal amount of such Debt Security which has been or is to be redeemed. 
 Section 13.4.
Notice of Redemption. 
 Notice of redemption shall be given by the Company, or at the Company’s written request to
the Trustee not less than 45 days prior to the Redemption Date (unless the Trustee permits a period of less than 45 days), by the Trustee in the name and at the expense of the Company, not less than 30 days and not more than 60 days prior to the
Redemption Date to the Holders of Debt Securities of any series to be redeemed in whole or in part pursuant to this Article XIII, in the manner provided in Section 1.5. Any notice so given shall be conclusively presumed to have been duly given,
whether or not the Holder receives such notice. Failure to give such notice, or any defect in such notice to the Holder of any Debt Security of a series designated for redemption, in whole or in part, shall not affect the sufficiency of any notice
of redemption with respect to the Holder of any other Debt Security of such series. 
 All notices of redemption shall state:

 (1) the Redemption Date; 

(2) the Redemption Price or, if not then ascertainable, the manner of calculation thereof; 

(3) that Debt Securities of such series are being redeemed by the Company pursuant to provisions contained in this
Indenture or the terms of the Debt Securities of such series or a supplemental indenture establishing such series, if such be the case, together with a brief statement of the facts permitting such redemption; 

(4) if less than all Outstanding Debt Securities of any series are to be redeemed, the identification (and, in the case of
partial redemption, the principal amounts) of the particular Debt Securities to be redeemed; 
 (5) that on the
Redemption Date the Redemption Price will become due and payable upon each such Debt Security to be redeemed, and that interest thereon, if any, shall cease to accrue on and after said date; 

(6) the Place or Places of Payment where such Debt Securities are to be surrendered for payment of the Redemption Price;

  
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 (7) the
CUSIP number, if any, and that no representation is made as to the accuracy or correctness of the CUSIP number, if any, listed on such notice or printed on the Debt Securities; and 

(8) that the redemption is for a sinking fund, if such is the case. 

Section 13.5. Deposit of Redemption Price. 
 On or prior to 10:00 a.m. (New York City time) on the Redemption Date for any Debt Securities, the Company shall deposit with the Trustee or with a Paying Agent (or, if the Company is acting as its own
Paying Agent, segregate and hold in trust as provided in Section 12.4) an amount of money sufficient to pay the Redemption Price of such Debt Securities or any portions thereof which are to be redeemed on that date. 

Section 13.6. Debt Securities Payable on Redemption Date. 
 Notice of redemption having been given as aforesaid, any Debt Securities so to be redeemed shall become due and payable on the Redemption Date at the Redemption Price, and from and after such date (unless
the Company shall default in the payment of the Redemption Price) such Debt Securities shall cease to bear interest. Upon surrender of any such Debt Security for redemption in accordance with said notice, such Debt Security shall be paid by the
Company at the Redemption Price; provided that, unless otherwise specified as contemplated by Section 3.1, installments of interest on Debt Securities which have a Stated Maturity on or prior to the Redemption Date for such Debt Securities
shall be payable according to the terms of such Debt Securities and the provisions of Section 3.7. 
 If any Debt Security
called for redemption shall not be so paid upon surrender thereof for redemption, the principal (and premium, if any) shall, until paid, bear interest from the Redemption Date at the rate prescribed therefor in the Debt Security. 

Section 13.7. Debt Securities Redeemed in Part. 
 Any Debt Security which is to be redeemed only in part shall be surrendered at the Corporate Trust Office or such other office or agency of the Company as is specified pursuant to Section 3.1 with,
if the Company, the Security Registrar or the Trustee so requires, due endorsement by, or a written instrument of transfer in form satisfactory to the Company, the Security Registrar and the Trustee duly executed by, the Holder thereof or his
attorney duly authorized in writing, and the Company shall execute, and the Trustee shall authenticate and deliver to the Holder of such Debt Security without service charge, a new Debt Security or Debt Securities of the same series, of like tenor
and form, of any authorized denomination as requested by such Holder in aggregate principal amount equal to and in exchange for the unredeemed portion of the principal of the Debt Security so surrendered. In the case of a Debt Security providing
appropriate space for such notation, at the option of the Holder thereof, the Trustee, in lieu of delivering a new Debt Security or Debt Securities as aforesaid, may make a notation on such Debt Security of the payment of the redeemed portion
thereof. 

  
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 ARTICLE XIV.

 SINKING FUNDS 

Section 14.1. Applicability of Articles. 
 The provisions of this Article XIV shall be applicable to any sinking fund for the retirement of Debt Securities of a series except as otherwise specified pursuant to Section 3.1 for Debt Securities
of such series. 
 The minimum amount of any sinking fund payment provided for by the terms of Debt Securities of any series is
herein referred to as a “mandatory sinking fund payment,” and any payment in excess of such minimum amount provided for by the terms of Debt Securities of any series is herein referred to as an “optional sinking fund payment.” If
provided for by the terms of Debt Securities of any series, the amount of any cash sinking fund payment may be subject to reduction as provided in Section 14.2. Each sinking fund payment shall be applied to the redemption of Debt Securities of
any series as provided for by the terms of Debt Securities of such series. 
 Section 14.2. Satisfaction of Mandatory Sinking Fund
Payments with Debt Securities. 
 In lieu of making all or any part of a mandatory sinking fund payment with respect to any
Debt Securities of a series in cash, the Company may at its option, at any time no more than sixteen months and no less than 45 days prior to the date on which such sinking fund payment is due, deliver to the Trustee Debt Securities of such series
theretofore purchased or otherwise acquired by the Company, except Debt Securities of such series which have been redeemed through the application of mandatory sinking fund payments pursuant to the terms of the Debt Securities of such series,
accompanied by a Company Order instructing the Trustee to credit such obligations and stating that the Debt Securities of such series were originally issued by the Company by way of bona fide sale or other negotiation for value, provided that such
Debt Securities shall not have been previously so credited. Such Debt Securities shall be received and credited for such purpose by the Trustee at the Redemption Price specified in such Debt Securities for redemption through operation of the sinking
fund and the amount of such mandatory sinking fund payment shall be reduced accordingly. 
 Section 14.3. Redemption of Debt Securities
for Sinking Fund. 
 Not less than 45 days prior to each sinking fund payment date for any series of Debt Securities (unless
a shorter period shall be satisfactory to the Trustee), the Company will deliver to the Trustee an Officers’ Certificate specifying the amount of the next ensuing sinking fund payment for that series pursuant to the terms of that series, the
portion thereof, if any, which is to be satisfied by payment of cash and the portion thereof, if any, which is to be satisfied by delivering and crediting Debt Securities of such series pursuant to Section 14.2 and shall state the basis for
such credit and that such Debt Securities have not previously been so credited and whether the Company intends to exercise its rights to make a permitted optional sinking fund payment with respect to such series. Such certificate shall be
irrevocable and upon its delivery the Company shall be obligated to make the cash payment or payments 

  
 68 

 
therein referred to, if any, on or before the next succeeding sinking fund payment date. In the case of the failure of the Company to deliver such certificate, the sinking fund payment due on the
next succeeding sinking fund payment date for such series shall be paid entirely in cash and shall be sufficient to redeem the principal amount of the Debt Securities of such series subject to a mandatory sinking fund payment without the right to
deliver or credit Debt Securities as provided in Section 14.2 and without the right to make any optional sinking fund payment with respect to such series at such time. 
 If the sinking fund payment or payments (mandatory or optional or both) to be made in cash on the next succeeding sinking fund payment date plus any unused balance of any preceding sinking fund payments
made in cash shall exceed $50,000 (or a lesser sum if the Company shall so request with respect to the Debt Securities of any series), such cash shall be applied on the next succeeding sinking fund payment date to the redemption of Debt Securities
of such series at the sinking fund redemption price thereof together with accrued interest thereon to the date fixed for redemption. If such amount shall be $50,000 (or such lesser sum) or less and the Company makes no such request then it shall be
carried over until a sum in excess of $50,000 (or such lesser sum) is available. 
 Any sinking fund payment or payments
(mandatory or optional) made in cash plus any unused balance of any preceding sinking fund payments made with respect to the Debt Securities of any particular series shall, subject to the preceding paragraph, be applied by the Trustee (to the extent
it is acting as a Paying Agent with respect to Dollars) or other Paying Agent appointed by the Company (or by the Company if the Company is acting as its own Paying Agent) on the sinking fund payment date on which such payment is made (or, if such
payment is made before a sinking fund payment date, on the sinking fund payment date immediately following the date of such payment) to the redemption of Debt Securities of such series at the Redemption Price specified in such Debt Securities with
respect to the sinking fund. Any sinking fund moneys not so applied or allocated by the Trustee (to the extent it is acting as a Paying Agent with respect to Dollars) or other Paying Agent appointed by the Company (or by the Company if the Company
is acting as its own Paying Agent) to the redemption of Debt Securities shall be added to the next sinking fund payment received by the Trustee (to the extent it is acting as a Paying Agent with respect to Dollars) or other Paying Agent appointed by
the Company (or if the Company is acting as its own Paying Agent, segregated and held in trust as provided in Section 12.4) for such series and, together with such payment (or such amount so segregated) shall be applied in accordance with the
provisions of this Section. Any and all sinking fund moneys with respect to the Debt Securities of any particular series held by the Trustee (to the extent it is acting as a Paying Agent with respect to Dollars) or other Paying Agent appointed by
the Company (or if the Company is acting as its own Paying Agent, segregated and held in trust as provided in Section 12.4) on the last sinking fund payment date with respect to Debt Securities of such series and not held for the payment or
redemption of particular Debt Securities of such series shall be applied by the Trustee (to the extent it is acting as a Paying Agent with respect to Dollars) or other Paying Agent appointed by the Company (or by the Company if the Company is acting
as its own Paying Agent), together with other moneys, if necessary, to be deposited (or segregated) sufficient for the purpose, to the payment of the principal of the Debt Securities of such series at Maturity. 

  
 69 

  
 The Trustee shall
select or cause to be selected the Debt Securities to be redeemed upon such sinking fund payment date in the manner specified in Section 13.3 and the Company shall cause notice of the redemption thereof to be given in the manner provided in
Section 13.4. Such notice having been duly given, the redemption of such Debt Securities shall be made upon the terms and in the manner stated in Section 13.6. 
 On or before 10:00 a.m. (New York City time) on each sinking fund payment date, the Company shall pay to the Trustee (to the extent it is acting as a Paying Agent with respect to Dollars) or other Paying
Agent appointed by the Company (or, if the Company is acting as its own Paying Agent, the Company shall segregate and hold in trust as provided in Section 12.4) in cash a sum equal to the principal and any interest accrued to the Redemption
Date for Debt Securities or portions thereof to be redeemed on such sinking fund payment date pursuant to this Section. 

Neither the Trustee, any Paying Agent nor the Company shall redeem any Debt Securities of a series with sinking fund moneys or give any
notice of redemption of Debt Securities of such series by operation of the sinking fund for such series during the continuance of a default in payment of interest, if any, on any Debt Securities of such series or of any Event of Default (other than
an Event of Default occurring as a consequence of this paragraph) with respect to the Debt Securities of such series, except that if the notice of redemption shall have been provided in accordance with the provisions hereof, the Trustee or
applicable Paying Agent (or the Company, if the Company is then acting as its own Paying Agent) shall redeem such Debt Securities if cash sufficient for that purpose shall be deposited with the Trustee or such other Paying Agent as provided above
(or segregated by the Company) for that purpose in accordance with the terms of this Article. Except as aforesaid, any moneys in the sinking fund for such series at the time when any such default or Event of Default shall occur and any moneys
thereafter paid into such sinking fund shall, during the continuance of such default or Event of Default, be held as security for the payment of the Debt Securities of such series; provided, however, that in case such default or Event of Default
shall have been cured or waived as provided herein, such moneys shall thereafter be applied on or prior to the next sinking fund payment date for the Debt Securities of such series on which such moneys may be applied pursuant to the provisions of
this Section. 
 ARTICLE XV. 
 DEFEASANCE 
 Section 15.1. Applicability of Article. 

Except as otherwise provided pursuant to Section 3.1, the provisions of this Article shall be applicable. 

Section 15.2. Defeasance Upon Deposit of Moneys or U.S. Government Obligations. 

At the Company’s option, either (a) the Company shall be deemed to have been Discharged (as defined below) from its obligations
with respect to Debt Securities of any series (“legal defeasance option”) or (b) the Company shall cease to be under any 

  
 70 

 
obligation to comply with any term, provision or condition set forth in clauses (ii) and (iv) of Section 10.1 with respect to Debt Securities of any series (and, if so specified
pursuant to Section 3.1, any other obligation of the Company or restrictive covenant added for the benefit of such series pursuant to Section 3.1), and any noncompliance with such terms, provisions or covenants shall not constitute a
default or Event of Default with respect to the Debt Securities of that series (“covenant defeasance option”), at any time after the applicable conditions set forth below have been satisfied: 

(1) the Company shall have deposited or caused to be deposited irrevocably with the Trustee as trust funds in trust,
specifically pledged as security for, and dedicated solely to, the benefit of the Holders of the Debt Securities of such series, (i) money in an amount, or (ii) U.S. Government Obligations (as defined below) which through the payment of
interest and principal in respect thereof in accordance with their terms will provide, not later than one day before the due date of any payment, money in an amount, or (iii) a combination of (i) and (ii), sufficient, in the opinion (with
respect to (i), (ii) and (iii)) of a nationally recognized firm of independent public accountants expressed in a written certification thereof delivered to the Trustee, to pay and discharge each installment of principal (including any mandatory
sinking fund payments) of and premium, if any, and interest on, the Outstanding Debt Securities of such series on the dates such installments of interest or principal and premium are due; 

(2) such deposit shall not cause the Trustee with respect to the Debt Securities of that series to have a conflicting
interest as defined in Section 6.8 and for purposes of the Trust Indenture Act with respect to the Debt Securities of any series; 
 (3) such deposit will not result in a breach or violation of, or constitute a default under, this Indenture or any other agreement or instrument to which the Company is a party or by which it is bound;

 (4) if the Debt Securities of such series are then listed on any national securities exchange, the Company
shall have delivered to the Trustee an Opinion of Counsel or a letter or other document from such exchange to the effect that the Company’s exercise of its option under this Section would not cause such Debt Securities to be delisted;

 (5) no Event of Default or event (including such deposit) which, with notice or lapse of time or both, would
become an Event of Default with respect to the Debt Securities of such series shall have occurred and be continuing on the date of such deposit and, with respect to the legal defeasance option only, no Event of Default under Section 5.1(5) or
Section 5.1(6) or event which with the giving of notice or lapse of time, or both, would become an Event of Default under Section 5.1(5) or Section 5.1(6) shall have occurred and be continuing on the 91st day after such date; and

  
 71 

  
 (6) if
the Debt Securities are to be redeemed prior to Stated Maturity (other than from mandatory sinking fund payments or analogous payments), notice of such redemption shall have been duly given pursuant to this Indenture or provision therefor
satisfactory to the Trustee shall have been made; and 
 (7) the Company shall have delivered to the Trustee an
Opinion of Counsel or a ruling from the Internal Revenue Service to the effect that the Holders of the Debt Securities of such series will not recognize income, gain or loss for Federal income tax purposes as a result of such deposit, defeasance or
Discharge. 
 Notwithstanding the foregoing, if the Company exercises its covenant defeasance option and an Event of Default under
Section 5.1(5) or Section 5.1(6) or event which with the giving of notice or lapse of time, or both, would become an Event of Default under Section 5.1(5) or Section 5.1(6) shall have occurred and be continuing on the 91st day
after the date of such deposit, the obligations of the Company referred to under the definition of covenant defeasance option above with respect to such Debt Securities shall be reinstated. 

Notwithstanding the Company’s exercise of the covenant defeasance option, the Company may subsequently exercise the legal defeasance
option. 
 “Discharged” means that the Company shall be deemed to have paid and discharged the entire indebtedness
represented by, and obligations under, the Debt Securities of such series and to have satisfied all the obligations under this Indenture relating to the Debt Securities of such series (and the Trustee for such series of Debt Securities, at the
expense of the Company, shall execute proper instruments acknowledging the same), except (A) the rights of Holders of Debt Securities of such series to receive, from the trust fund described in clause (1) above, payment of the principal of
(and premium, if any) and interest on such Debt Securities when such payments are due, (B) the Company’s obligations with respect to the Debt Securities of such series under Sections 3.4, 3.5, 3.6, 12.3 and 15.3 and (C) the rights,
powers, trusts, duties and immunities of the Trustee hereunder. 
 “U.S. Government Obligations” means securities that
are (i) direct obligations of the United States for the payment of which its full faith and credit is pledged, or (ii) obligations of a Person controlled or supervised by and acting as an agency or instrumentality of the United States the
payment of which is unconditionally guaranteed as a full faith and credit obligation by the United States, which, in either case under clauses (i) or (ii), are not callable or redeemable at the option of the issuer thereof, and shall also
include a depository receipt issued by a bank or trust company as custodian with respect to any such U.S. Government Obligation or a specific payment of interest on or principal of any such U.S. Government Obligation held by such custodian for the
account of the holder of a depository receipt; provided that (except as required by law) such custodian is not authorized to make any deduction from the amount payable to the holder of such depository receipt from any amount received by the
custodian in respect of the U.S. Government Obligation or the specific payment of interest on or principal of the U.S. Government Obligation evidenced by such depository receipt. 

  
 72 

  
 Section 15.3. Deposited Moneys
and U.S. Government Obligations to be Held in Trust. 
 All moneys and U.S. Government Obligations deposited with the Trustee
pursuant to Section 15.2 in respect of Debt Securities of a series shall be held in trust and applied by it, in accordance with the provisions of such Debt Securities and this Indenture, to the payment, either directly or through any Paying
Agent (including the Company acting as its own Paying Agent) as the Trustee may determine, to the Holders of such Debt Securities, of all sums due and to become due thereon for principal (and premium, if any) and interest, if any, but such money
need not be segregated from other funds except to the extent required by law. 
 Section 15.4. Repayment to Company. 

The Trustee and any Paying Agent shall promptly pay or return to the Company upon Company Request any moneys or U.S. Government
Obligations held by them at any time that, in the opinion of a nationally recognized firm of independent public accountants expressed in a written certification thereof delivered to the Trustee (which may be the same opinion provided pursuant to
Section 15.2(1)), are not required for the payment of the principal of (and premium, if any) and interest on the Debt Securities of any series for which money or U.S. Government Obligations have been deposited pursuant to Section 15.2.

 The provisions of the last paragraph of Section 12.4 shall apply to any money held by the Trustee or any Paying Agent
under this Article that remains unclaimed for two years after the Maturity of any series of Debt Securities for which money or U.S. Government Obligations have been deposited pursuant to Section 15.2. 

The Company shall pay and shall indemnify the Trustee for any series of Debt Securities against any tax, fee or other charge imposed on
or assessed against U.S. Government Obligations deposited pursuant to Section 15.2 or the interest and principal received in respect of such U.S. Government Obligations other than any such tax, fee or other charge which by law is payable by or
on behalf of Holders. The obligation of the Company under this Section 15.4 shall be deemed to be an obligation of the Company under Section 6.7. 
 [remainder of page left intentionally blank] 

  
 73 

  
 IN WITNESS WHEREOF,
the parties hereto have caused this Indenture to be duly executed as of the day and year first above written. 
  

			
	SIGMA-ALDRICH CORPORATION
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	DEUTSCHE BANK TRUST COMPANY AMERICAS,
	as Trustee
		
	By:	 	  

	Name:	 	  

	Title:	 	  

		
	By:	 	  

	Name:	 	  

	Title:	 	  

  
 74 

  
 Reconciliation and tie
between Trust Indenture Act of 1939 
 and Indenture, dated as of
            , 2010 
  

							
	  	 	 Trust Indenture Act Section
	    	 Indenture Section
	  	 
				
		 	 Section 310     (a)(1)
	    	6.9	  	
		 	                (a)(2)
	    	6.9	  	
		 	                (a)(3)
	    	Not Applicable	  	
		 	                (a)(4)
	    	Not Applicable	  	
		 	                (a)(5)
	    	6.9	  	
		 	                (b)
	    	6.8, 6.10	  	
		 	 Section 311     (a)
	    	6.13	  	
		 	                (b)
	    	6.13	  	
		 	 Section 312     (a)
	    	7.1, 7.2(a)	  	
		 	                (b)
	    	7.2(b)	  	
		 	                (c)
	    	7.2(c)	  	
		 	 Section 313     (a)
	    	7.3	  	
		 	                (b)(1)
	    	Not Applicable	  	
		 	                (b)(2)
	    	7.3	  	
		 	                (c)
	    	7.3	  	
		 	                (d)
	    	7.3	  	
		 	 Section 314     (a)
	    	7.4, 12.2	  	
		 	                (b)
	    	Not Applicable	  	
		 	                (c)(1)
	    	1.2	  	
		 	                (c)(2)
	    	1.2	  	
		 	                (c)(3)
	    	Not Applicable	  	
		 	                (d)
	    	Not Applicable	  	
		 	                (e)
	    	1.2	  	
		 	 Section 315     (a)
	    	6.1(a),	  	
		 		    	6.1(c)	  	
		 	                (b)
	    	6.2	  	
		 	                (c)
	    	6.1(b)	  	
		 	                (d)(1)
	    	6.1(a)	  	
		 	                (d)(2)
	    	6.1(c)(2)	  	
		 	                (d)(3)
	    	6.1(c)(3)	  	
		 	                (e)
	    	5.14	  	
		 	 Section 316     (a)(1)(A)
	    	5.2, 5.12	  	
		 	                (a)(1)(B)
	    	5.13	  	
		 	                (a)(2)
	    	Not Applicable	  	
		 	                (b)
	    	5.8	  	
		 	                (c)
	    	8.1	  	
		 	 Section 317 (a)(1)
	    	5.3	  	

  

							
		 	                (a)(2)
	    	5.4	  	
		 	                (b)
	    	12.4	  	
		 	 Section 318
	    	1.6	  	

  
  

	Note:	This reconciliation and tie shall not, for any purpose, be deemed to be a part of the Indenture. 

  
 2Securities Purchase Agreement

  
 Exhibit 10.1

 EXECUTION COPY 
 SECURITIES PURCHASE AGREEMENT 
 SECURITIES PURCHASE AGREEMENT (the
“Agreement”), dated as of October 19, 2010, by and among Biovest International, Inc., a Delaware corporation, with headquarters located at 324 South Hyde Park Avenue, Suite 350, Tampa, Florida
(the “Company”), and the investors listed on the Schedule of Buyers attached hereto (individually, a “Buyer” and collectively, the “Buyers”). 

WHEREAS: 

A. On November 10, 2008 (the “Petition Date”), Accentia Biopharmaceuticals, Inc. (“Accentia”) and
its subsidiaries, the Company, Analytica International, Inc., TEAMM Pharmaceuticals, Inc., AccentRx, Inc., Accentia Specialty Pharmacy, Inc., Biovax, Inc., AutovaxID, Inc., Biolender, LLC and Biolender II, LLC (hereinafter collectively referred to
as the “Debtors”), filed voluntary petitions (the “Chapter 11 Cases”) for relief under Chapter 11 of Title 11 of the United States Code, 11 U.S.C. §§ 101-1330 (as amended, the “Bankruptcy
Code”), with the United States Bankruptcy Court for the Middle District of Florida (Tampa Division) (the “Bankruptcy Court”). Since the Petition Date, the Debtors have continued to operate their businesses and manage their
properties as debtors in possession pursuant to Sections 1107(a) and 1108 of the Bankruptcy Code. On November 13, 2008, the Bankruptcy Court entered its Order Granting Debtor’s Ex Parte Emergency Motion for Order Directing Joint
Administration of Chapter 11 Cases Pursuant to Bankruptcy Rule 1015(b) in each of the Debtors’ Chapter 11 Cases. Pursuant to the Joint Administration Order, the Debtors’ Chapter 11 Cases are being jointly administered for procedural
purposes only under In re: Accentia Biopharmaceuticals, Inc., Case No. 8:08-bk-17795-KRM. 
 B. The Company and each Buyer
are executing and delivering this Agreement in reliance upon the exemption from securities registration afforded by Section 364(f) of the Bankruptcy Code, Section 4(2) of the Securities Act of 1933, as amended (the “1933
Act”), and Rule 506 of Regulation D (“Regulation D”) as promulgated by the United States Securities and Exchange Commission (the “SEC”) under the 1933 Act. 

C. The Company has authorized (i) a new series of secured convertible notes of the Company, in substantially the form attached
hereto as Exhibit A-1 (the “Initial Notes”), which notes shall be convertible into the Company’s common stock, par value $0.01 per share (the “Common Stock”) (the Initial Notes as converted,
collectively, the “Initial Conversion Shares”), in accordance with the terms of the Initial Notes, and (ii) a new series of convertible notes of the Company, in substantially the form attached hereto as Exhibit A-2 (the
“Exchange Notes” and, together with the Initial Notes, the “Notes”), which notes shall be convertible into the Common Stock in accordance with the terms of the Exchange Notes (the Exchange Notes as converted,
collectively, the “Exchange Conversion Shares” and, together with the Initial Conversion Shares, the “Conversion Shares”). 
 D. The Notes bear interest and, from time to time, may require the payment of a Make-Whole Amount, each of which, subject to certain conditions, may be paid in shares of Common Stock (collectively, the
“Interest Shares”). 

  
 E. Each Buyer wishes
to purchase, and the Company wishes to sell, upon the terms and conditions stated in this Agreement, (i) that aggregate principal amount of Initial Notes, set forth opposite such Buyer’s name in column (3) on the Schedule of Buyers
attached hereto (which aggregate principal amount of Initial Notes for all Buyers shall be up to $8,000,000), (ii) Series A Warrants, in substantially the form attached hereto as Exhibit B-1 (the “Initial Series A
Warrants”), representing the right to acquire up to that number of shares of Common Stock set forth opposite such Buyer’s name in column (4) on the Schedule of Buyers (as exercised, collectively, the “Initial Series A
Warrant Shares”) and (iii) Series B Warrants, in substantially the form attached hereto as Exhibit B-1 (the “Initial Series B Warrants” and, together with the Initial Series A Warrants, the “Initial
Warrants”), representing the right to acquire up to that number of shares of Common Stock set forth opposite such Buyer’s name in column (5) on the Schedule of Buyers (as exercised, collectively, the “Initial Series B
Warrant Shares” and, together with the Initial Series A Warrant Shares, the “Initial Warrant Shares”). As used herein, the term “Series A Warrants” shall mean the Initial Series A Warrants and the Exchange
Series A Warrants. As used herein, the term “Series B Warrants” shall mean the Initial Series B Warrants and the Exchange Series B Warrants. 
 F. On the Effective Date (as defined in the Company’s First Amended Joint Plan of Reorganization (as amended, modified or supplemented in accordance with its terms, the Bankruptcy Code or the Federal
Bankruptcy Procedure and local rules, the “Plan”)), the Initial Notes shall be mandatorily exchangeable and exchanged by each Buyer for an aggregate principal amount of Exchange Notes equal to the aggregate principal amount of
Initial Notes being exchanged by each Buyer thereof plus accrued but unpaid interest on the Initial Notes. 
 G. On the
Effective Date of the Plan, (i) the Initial Series A Warrants shall be mandatorily exchangeable and shall be exchanged by each Buyer for Series A Warrants, in substantially the form attached hereto as Exhibit B-2 (the “Exchange
Series A Warrants”), representing the right to acquire the same number of shares of Common Stock as the unexercised Initial Series A Warrant Shares (the “Exchange Series A Warrant Shares” and, together with the Initial
Series A Warrant Shares, the “Series A Warrant Shares”) and (ii) the Initial Series B Warrants shall be mandatorily exchangeable and shall be exchanged by each Buyer for Series B Warrants, in substantially the form attached
hereto as Exhibit B-2 (the “Exchange Series B Warrants” and, together with the Exchange Series A Warrants, the “Exchange Warrants”), representing the right to acquire the same number of shares of Common Stock
as the unexercised Initial Series B Warrant Shares (the “Exchange Series B Warrant Shares” and, together with the Initial Series B Warrant Shares, the “Series B Warrant Shares”). The Initial Warrants and the
Exchange Warrants collectively are referred to herein as the “Warrants”. The Exchange Series A Warrant Shares and the Exchange Series B Warrant Shares collectively are referred to herein as the “Exchange Warrant
Shares” and the Series A Warrant Shares and the Series B Warrant Shares collectively are referred to herein as the “Warrant Shares.” 
 H. Upon the exchange of (i) the Initial Notes for the Exchange Notes and (ii) the Initial Warrants for the Exchange Warrants, the Exchange Notes and the Exchange Warrants will be issued pursuant
to Section 1145 of the Bankruptcy Code and upon the issuance of the Exchange Conversion Shares and the Exchange Warrant Shares, such shares will be freely transferable without any restrictions or limitations and without the requirement to be
registered under the 1933 Act. 

  
 - 2 -

  
 I. The Initial Notes
will be secured by a first priority perfected security interest in a segregated blocked bank account (the “Account”) at Wells Fargo, National Association (the “Account Bank”) as evidenced by a Security Agreement, in
the form attached hereto as Exhibit C-1 (as amended or modified from time to time in accordance with its terms, the “Security Agreement”) and an account control agreement in the form attached hereto as Exhibit C-2 (the
“Account Control Agreement” and, together with the Security Agreement, the “Security Documents”). 
 J. The Notes, the Conversion Shares, the Interest Shares, the Warrants and the Warrant Shares collectively are referred to herein as the “Securities”. 

NOW, THEREFORE, the Company and each Buyer hereby agree as follows: 

1. PURCHASE AND SALE OF NOTES AND WARRANTS. 
 (a) Purchase of Initial Notes and Initial Warrants. Subject to the satisfaction (or waiver) of the conditions set forth in Sections 6 and 7 below, the Company shall issue and sell to each Buyer,
and each Buyer severally, but not jointly, agrees to purchase from the Company on the Closing Date (as defined below), (x) a principal amount of Initial Notes as is set forth opposite such Buyer’s name in column (3) on the Schedule of
Buyers, (y) Initial Series A Warrants to acquire up to that number of Series A Warrant Shares as is set forth opposite such Buyer’s name in column (4) on the Schedule of Buyers and (z) Initial Series B Warrants to acquire up to
that number of Series B Warrant Shares as is set forth opposite such Buyer’s name in column (5) on the Schedule of Buyers (the “Closing”). 
 (b) Closing. The date and time of the Closing (the “Closing Date”) shall be 10:00 a.m., New York City time, on the date hereof (or such other date and time as is mutually agreed to
by the Company and each Buyer) after notification of satisfaction (or waiver) of the conditions to the Closing set forth in Sections 6 and 7 below, at the offices of Schulte Roth & Zabel LLP, 919 Third Avenue, New York, New York 10022.

 (c) Purchase Price. The aggregate purchase price for the Initial Notes and the Initial Warrants to be purchased by
each such Buyer at the Closing (the “Purchase Price”) shall be the amount set forth opposite each Buyer’s name in column (6) of the Schedule of Buyers. Each Buyer shall pay $1,000 for each $1,000 of principal amount of
Initial Notes and related Initial Warrants to be purchased by such Buyer at the Closing. The Buyers and the Company agree that the Notes and the Warrants constitute an “investment unit” for purposes of Section 1273(c)(2) of the
Internal Revenue Code of 1986, as amended (the “Code”). The Buyers and the Company mutually agree that the allocation of the issue price of such investment unit between the Initial Notes and the Initial Warrants in accordance with
Section 1273(c)(2) of the Code and Treasury Regulation Section 1.1273-2(h) shall be an aggregate amount of $917,855 allocated to the Initial Warrants and the balance of the Purchase Price allocated to the Initial Notes, and neither the
Buyers nor the Company shall take any position inconsistent with such allocation in any tax return or in any judicial or administrative proceeding in respect of taxes. 
 (d) Form of Payment. On the Closing Date, (i) each Buyer shall pay its Purchase Price to the Company for the Initial Notes and the Initial Warrants to be issued and sold

  
 - 3 -

 
to such Buyer at the Closing (less, in the case of Empery Asset Master Ltd. (“Empery”), the amounts withheld pursuant to Section 4(g)), by wire transfer of immediately
available funds to the Account and (ii) the Company shall deliver to each Buyer the Initial Notes (allocated in the principal amounts as such Buyer shall request) which such Buyer is then purchasing hereunder along with the Initial Warrants
(allocated in the amounts as such Buyer shall request) which such Buyer is purchasing, in each case duly executed on behalf of the Company and registered in the name of such Buyer or its designee. 

2. BUYER’S REPRESENTATIONS AND WARRANTIES. Each Buyer, severally and not jointly, represents and warrants with respect to
only itself that: 
 (a) Organization. Such Buyer is an entity duly organized, validly existing and in good standing
under the laws of the jurisdiction of its organization. 
 (b) No Public Sale or Distribution. Such Buyer is
(i) acquiring the Notes and the Warrants and (ii) upon conversion of the Notes and exercise of the Warrants (other than those Warrants exercised pursuant to a Cashless Exercise (as defined in the Warrants)) will acquire the Conversion
Shares issuable upon conversion of the Notes and the Warrant Shares issuable upon exercise of the Warrants, for its own account and not with a view towards, or for resale in connection with, the public sale or distribution thereof, except for sales
registered or exempted under the 1933 Act and in compliance with applicable state securities laws; provided, however, that by making the representations herein, such Buyer does not agree to hold any of the Securities for any minimum or
other specific term and reserves the right to dispose of the Securities at any time in accordance with or pursuant to a registration statement or an exemption under the 1933 Act, including pursuant to, or as permitted by, Section 1145 of the
Bankruptcy Code, and in compliance with applicable state securities laws. Such Buyer is acquiring the Securities hereunder in the ordinary course of its business. Such Buyer does not presently have any present intention, plan, arrangement, agreement
or understanding, directly or indirectly, with any Person (as defined in Section 3(s)) to distribute any of the Securities. 
 (c) Accredited Investor Status. Such Buyer is an “accredited investor” as that term is defined in Rule 501(a) of Regulation D. 

(d) Experience of Such Buyer. Such Buyer, either alone or together with its representatives has such knowledge, sophistication and
experience in business and financial matters so as to be capable of evaluating the merits and risks of the prospective investment in the Securities, and has so evaluated the merits and risks of such investment. Such Buyer has considered and has
discussed with such Buyer’s professional legal, tax, accounting and financial advisors, to the extent such Buyer has deemed necessary, the suitability of an investment in the Securities for such Buyer’s particular tax and financial
situation and has determined that the Securities being purchased by such Buyer are a suitable investment for such Buyer. Such Buyer recognizes that an investment in the Securities involves substantial risks, including the possible loss of the entire
amount of such investment. 
 (e) Reliance on Exemptions. Such Buyer understands that the Securities are being offered
and sold to it in reliance on specific exemptions from the registration requirements of United States federal and state securities laws and that the Company is relying in part upon the 

  
 - 4 -

 
truth and accuracy of, and such Buyer’s compliance with, the representations, warranties, agreements, acknowledgments and understandings of such Buyer set forth herein in order to determine
the availability of such exemptions and the eligibility of such Buyer to acquire the Securities. 
 (f) Information. Such
Buyer and its advisors, if any, have been furnished with all materials relating to the business, finances and operations of the Company and materials relating to the offer and sale of the Securities that have been requested by such Buyer. Such Buyer
and its advisors, if any, have been afforded the opportunity to ask questions of the Company. Neither such inquiries nor any other due diligence investigations conducted by such Buyer or its advisors, if any, or its representatives shall modify,
amend or affect such Buyer’s right to rely on the Company’s representations and warranties contained herein. Such Buyer understands that its investment in the Securities involves a high degree of risk. Such Buyer has sought such
accounting, legal and tax advice as it has considered necessary to make an informed investment decision with respect to its acquisition of the Securities. Such Buyer and its advisors, if any, have had the opportunity to read the Disclosure Materials
(as defined below). The reports and materials filed or furnished by the Company under the 1934 Act, including pursuant to Section 13(a) or 15(d) thereof, filed or furnished since January 1, 2010, are collectively referred to herein as the
“SEC Documents” and, together with this Agreement and the Schedules to this Agreement, the “Disclosure Materials.” Such Buyer acknowledges that the Company makes no representation or warranty to Buyer other than as
expressly made by Company in the Transaction Documents, including, without limitation, with respect to any projections, estimates or budgets heretofore delivered or made available to such Buyer concerning future revenues, expenses, expenditures or
results of operations. 
 (g) No Governmental Review. Such Buyer understands that no United States federal or state
agency or any other government or governmental agency has passed on or made any recommendation or endorsement of the Securities or the fairness or suitability of the investment in the Securities nor have such authorities passed upon or endorsed the
merits of the offering of the Securities. 
 (h) No Legal, Tax or Investment Advice. Such Buyer understands that nothing
in this Agreement or any other materials presented by or on behalf of the Company to such Buyer in connection with the purchase of the Securities constitutes legal, tax or investment advice. Such Buyer has consulted such legal, tax and investment
advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of the Securities. Such Buyer understands that the Placement Agent has acted solely as the agent of the Company in the placement of the
Securities and not of the Buyer, and that the Placement Agent makes no representation or warranty with regard to the merits of this transaction or as to the accuracy of any information such Buyer may have received in connection therewith. Such Buyer
acknowledges that he, she or it has not relied on any information or advice furnished by or on behalf of the Placement Agent. 

(i) Transfer or Resale. Such Buyer understands that except for the Exchange Notes, the Exchange Warrants, the Exchange Conversion
Shares or the Exchange Warrant Shares, which will be freely transferable pursuant to Section 1145 of the Bankruptcy Code: (i) the Securities have not been and are not being registered under the 1933 Act or any state

  
 - 5 -

 
securities laws, and may not be offered for sale, sold, assigned or transferred unless (A) subsequently registered thereunder, (B) such Buyer shall have delivered to the Company an
opinion of counsel, in a generally acceptable form, to the effect that such Securities to be sold, assigned or transferred may be sold, assigned or transferred pursuant to an exemption from such registration, or (C) such Buyer provides the
Company with reasonable assurance that such Securities can be sold, assigned or transferred pursuant to Rule 144 or Rule 144A promulgated under the 1933 Act (or a successor rule thereto) (collectively, “Rule 144”); (ii) any
sale of the Securities made in reliance on Rule 144 may be made only in accordance with the terms of Rule 144 and further, if Rule 144 is not applicable, any resale of the Securities under circumstances in which the seller (or the Person (as defined
below) through whom the sale is made) may be deemed to be an underwriter (as that term is defined in the 1933 Act) may require compliance with some other exemption under the 1933 Act or the rules and regulations of the SEC thereunder; and
(iii) neither the Company nor any other Person is under any obligation to register the Securities under the 1933 Act or any state securities laws or to comply with the terms and conditions of any exemption thereunder. Notwithstanding the
foregoing, the Securities may be pledged in connection with a bona fide margin account or other loan or financing arrangement secured by the Securities and such pledge of Securities shall not be deemed to be a transfer, sale or assignment of the
Securities hereunder, and no Buyer effecting a pledge of Securities shall be required to provide the Company with any notice thereof or otherwise make any delivery to the Company pursuant to this Agreement or any other Transaction Document (as
defined in Section 3(b)), including, without limitation, this Section 2(i). 
 (j) Legends. Such Buyer
understands that the certificates or other instruments representing the Initial Notes and the Initial Warrants and, until such time as the resale of the Initial Conversion Shares and the Initial Warrant Shares have been registered under the 1933
Act, the stock certificates representing the Initial Conversion Shares and the Initial Warrant Shares, except as set forth below, shall bear any legend as required by the “blue sky” laws of any state and a restrictive legend in
substantially the following form (and a stop-transfer order may be placed against transfer of such stock certificates): 

[NEITHER THE ISSUANCE AND SALE OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE
[CONVERTIBLE] [EXERCISABLE] HAVE BEEN][THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN] REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD,
TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR (B) AN OPINION OF COUNSEL, IN A FORM REASONABLY SATISFACTORY TO THE COMPANY,
THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT OR (II) UNLESS THE HOLDER PROVIDES THE COMPANY WITH REASONABLE ASSURANCE THAT SUCH 

  
 - 6 -

 
SECURITIES CAN BE SOLD PURSUANT TO RULE 144 OR RULE 144A UNDER SAID ACT (COLLECTIVELY, “RULE 144”) AND APPLICABLE STATE SECURITIES LAWS. NOTWITHSTANDING THE FOREGOING, THE SECURITIES
MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT SECURED BY THE SECURITIES. 
 The legend set
forth above shall be removed and the Company shall issue a certificate without such legend to the holder of the Securities upon which it is stamped or issue to such holder by electronic delivery at the applicable balance account at The Depository
Trust Company (“DTC”), if, unless otherwise required by state securities laws, (i) such Securities are registered for resale under the 1933 Act, (ii) in connection with a sale, assignment or other transfer, such holder
provides the Company with an opinion of counsel, in a form reasonably acceptable to the Company, to the effect that such sale, assignment or transfer of the Securities may be made without registration under the applicable requirements of the 1933
Act, or (iii) the Buyer provides the Company with reasonable assurances that the Securities can be sold, assigned or transferred pursuant to Rule 144 or Rule 144A. The Company shall be responsible for the fees of its transfer agent and all DTC
fees associated with such issuance. Notwithstanding the foregoing, if any Securities are issued pursuant to Section 1145 of the Bankruptcy Code, such Securities shall not bear any restrictive legend, including, without limitation, the foregoing
legend, and if any such a restrictive legend appears on any such Securities, such legend shall promptly be removed by the Company. 
 (k) Validity; Enforcement. This Agreement has been duly and validly authorized, executed and delivered on behalf of such Buyer and shall constitute the legal, valid and binding obligations of such
Buyer enforceable against such Buyer in accordance with its terms, except as such enforceability may be limited by general principles of equity or to applicable bankruptcy, insolvency, reorganization, moratorium, liquidation and other similar laws
relating to, or affecting generally, the enforcement of applicable creditors’ rights and remedies. 
 (l) No
Conflicts. The execution, delivery and performance by such Buyer of this Agreement and the consummation by such Buyer of the transactions contemplated hereby will not (i) result in a violation of the organizational documents of such Buyer
or (ii) conflict with, or constitute a default (or an event which with notice or lapse of time or both would become a default) under, or give to others any rights of termination, amendment, acceleration or cancellation of, any agreement,
indenture or instrument to which such Buyer is a party, or (iii) result in a violation of any law, rule, regulation, order, judgment or decree (including federal and state securities laws) applicable to such Buyer, except in the case of clauses
(ii) and (iii) above, for such conflicts, defaults, rights or violations which would not, individually or in the aggregate, reasonably be expected to have a material adverse effect on the ability of such Buyer to perform its obligations
hereunder. 
 (m) Residency. Such Buyer is a resident of that jurisdiction specified below its address on the Schedule of
Buyers. 

  
 - 7 -

  
 (n) Broker
Fees. Such Buyer has not entered into any agreement or arrangement that would entitle any broker or finder to compensation by the Company in connection with the sale of the Securities to such Buyer. 

(o) No Advertisement. Such Buyer is not, to such Buyer’s knowledge, subscribing for the Securities as a result of or
subsequent to any advertisement, article, notice or other communication published in any newspaper, magazine or similar media or broadcast over television or radio or presented at any seminar, meeting or conference whose attendees have been invited
by any general solicitation or general advertising. 
 (p) Prohibited Transactions. Such Buyer has not, directly or
indirectly, and no Person acting on behalf of or pursuant to any understanding with such Buyer has, engaged in any purchases or sales of any securities, including any derivatives, of the Company (including, without limitation, any Short Sales (as
defined below) involving any of the Company’s securities) (a “Transaction”) since the time that such Buyer was first contacted by the Company or any other Person regarding an investment in the Company. Such Buyer covenants that
neither it nor any Person acting on its behalf or pursuant to any understanding with such Buyer will engage, directly or indirectly, in any Transactions prior to the time the transactions contemplated by this Agreement are publicly disclosed.
“Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the 1934 Act (as defined below) and all types of direct and indirect stock pledges, forward sale
contracts, options, puts, calls, short sales, swaps, derivatives and similar arrangements (including on a total return basis), and sales and other transactions through non-U.S. broker-dealers or foreign regulated brokers. Notwithstanding the
foregoing, for avoidance of doubt, nothing contained herein shall constitute a representation or warranty, or preclude any actions, with respect to the identification of the availability of, or securing of, available shares to borrow in order to
effect short sales or similar transactions in the future. 
 3. REPRESENTATIONS AND WARRANTIES OF THE COMPANY.

 The Company represents and warrants to each of the Buyers that: 

(a) Organization and Qualification. The Company is duly organized and validly existing in good standing under the laws of the
jurisdiction in which it is formed, and has the requisite power and authorization to own its properties and to carry on its business as now being conducted. The Company is duly qualified as a foreign entity to do business and is in good standing in
every jurisdiction in which its ownership of property or the nature of the business conducted by it makes such qualification necessary, except to the extent that the failure to be so qualified or be in good standing would not reasonably be expected
to have a Material Adverse Effect. As used in this Agreement, “Material Adverse Effect” means, other than as contemplated by the Chapter 11 Cases, any material adverse effect on the business, properties, assets, operations, results
of operations, condition (financial or otherwise) or prospects of the Company or on the transactions contemplated hereby or on the other Transaction Documents or by the agreements and instruments to be entered into in connection herewith or
therewith, or on the authority or ability of the Company to perform its obligations under the Transaction Documents (as defined below). The Company has no Subsidiaries except as set forth on 

  
 - 8 -

 
Schedule 3(a). As used herein, “Subsidiaries” shall mean any entity in which the Company, directly or indirectly, owns any of the capital stock or holds an equity or
similar interest. Except as set forth on Schedule 3(a), each of the Subsidiaries (i) has no properties or assets, (ii) other than liabilities that will be extinguished pursuant to the Chapter 11 Cases, has no liabilities,
(iii) shall be liquidated on the Effective Date pursuant to the Plan, (iv) is not a party to any contract, agreement or instrument, and (v) from the date hereof until the Effective Date shall not conduct any business or operations,
enter into any transaction, agreement or arrangement or incur any indebtedness or liabilities. The Company shall not form any Subsidiaries while any Initial Notes or Initial Warrants are outstanding. 

(b) Authorization; Enforcement; Validity. Subject only to Bankruptcy Court approval, the Company has the requisite power and
authority to enter into and perform its obligations under this Agreement, the Notes, the Warrants, the Lock-Up Agreements (as defined in Section 7(xii)), the Irrevocable Transfer Agent Instructions (as defined in Section 5(b)), the
Security Documents, and each of the other agreements entered into by the parties hereto in connection with the transactions contemplated by this Agreement (collectively, the “Transaction Documents”) and to issue the Securities in
accordance with the terms hereof and thereof. The execution and delivery of the Transaction Documents by the Company and the consummation by the Company of the transactions contemplated hereby and thereby, including, without limitation, the issuance
of the Notes and the Warrants, the reservation for issuance and the issuance of the Conversion Shares issuable upon conversion of the Notes, the reservation for issuance and the issuance of the Interest Shares issuable pursuant to the terms of the
Notes and the reservation for issuance and the issuance of the Warrant Shares issuable upon exercise of the Warrants have been duly authorized by the Company’s Board of Directors and no further filing, consent, or authorization is required by
the Company, its Board of Directors or its stockholders. This Agreement and the other Transaction Documents have been duly executed and delivered by the Company, and, upon Bankruptcy Court approval, shall constitute the legal, valid and binding
obligations of the Company, enforceable against the Company in accordance with their respective terms, except as such enforceability may be limited by general principles of equity or applicable bankruptcy, insolvency, reorganization, moratorium,
liquidation or similar laws relating to, or affecting generally, the enforcement of applicable creditors’ rights and remedies. 
 (c) Issuance of Securities. The issuance of the Notes and the Warrants are duly authorized and, upon issuance and payment therefor in accordance with this Agreement, shall be validly issued and
free from all taxes, liens and charges with respect to the issue thereof. As of the Closing, a number of shares of Common Stock shall have been duly authorized and reserved for issuance (the “Required Reserved Amount) which equals or
exceeds the sum of (A) 130% of the aggregate of the maximum number of shares of Common Stock (i) issuable upon conversion of the Notes, (ii) issuable as Interest Shares pursuant to the terms of the Notes; and (iii) issuable upon
exercise of the Series A Warrants and (B) 100% of the aggregate of the maximum number of shares of Common Stock issuable upon exercise of the Series B Warrants. Upon conversion or payment in accordance with the Notes or exercise in accordance
with the Warrants, as the case may be, the Conversion Shares, the Interest Shares and the Warrant Shares, respectively, will be validly issued, fully paid and nonassessable and free from all preemptive or similar rights, taxes, liens and charges
with respect to the issue thereof, with the holders being entitled to all rights accorded to a holder of Common Stock. Assuming the accuracy of each of the representations and warranties set forth in Section 2 of this Agreement, the offer and
issuance by the Company of the Securities is exempt from registration under the 1933 Act. 

  
 - 9 -

  
 (d) No
Conflicts. The execution, delivery and performance of the Transaction Documents by the Company and the consummation by the Company of the transactions contemplated hereby and thereby (including, without limitation, the issuance of the Notes and
the Warrants and reservation for issuance and issuance of the Conversion Shares, the Interest Shares and the Warrant Shares) will not (i) result in a violation of any memorandum of association, certificate of incorporation, certificate of
formation, any certificate of designations or other constituent documents of the Company, any capital stock of the Company or the articles of association or bylaws of the Company or (ii) conflict with, or constitute a default (or an event which
with notice or lapse of time or both would become a default) in any respect under, or give to others any rights of termination, amendment, acceleration or cancellation of, any material agreement, indenture or instrument to which the Company is a
party, except to the extent that such conflict, default, termination, amendment, acceleration or cancellation right would not reasonably be expected to have a Material Adverse Effect, or (iii) result in a violation of any law, rule, regulation,
order, judgment or decree (including, assuming the accuracy of the Buyers’ representations and warranties in Section 2, federal and state securities laws and regulations and the rules and regulations of the OTCQX market tier operated by
Pink OTC Markets Inc. (the “Principal Market”)), and laws of the State of Delaware applicable to the Company or by which any property or asset of the Company is bound or affected, except to the extent that such violation would not
reasonably be expected to have a Material Adverse Effect. 
 (e) Consents. Except for Bankruptcy Court approval, the
Company is not required to obtain any consent, authorization or order of, or make any filing or registration with, any court, governmental agency or any regulatory or self-regulatory agency or any other Person in order for it to execute, deliver or
perform any of its obligations under or contemplated by the Transaction Documents, in each case in accordance with the terms hereof or thereof. All consents, authorizations, orders, filings and registrations which the Company is required to obtain
pursuant to the preceding sentence have been obtained or effected on or prior to the Closing Date, and the Company is unaware of any facts or circumstances that might prevent the Company from obtaining or effecting any of the registration,
application or filings pursuant to the preceding sentence. The Company is not in violation of the listing requirements of the Principal Market and has no knowledge of any facts that would reasonably lead to delisting or suspension of the Common
Stock in the foreseeable future. The issuance by the Company of the Securities shall not have the effect of delisting or suspending the Common Stock from the Principal Market. 
 (f) Acknowledgment Regarding Buyer’s Purchase of Securities. The Company acknowledges and agrees that each Buyer is acting solely in the capacity of an arm’s length purchaser with respect
to the Transaction Documents and the transactions contemplated hereby and thereby and that no Buyer is (i) an officer or director of the Company or any of its Subsidiaries, (ii) an “affiliate” (as defined in Rule 144) of the
Company or any of its Subsidiaries or (iii) to the knowledge of the Company, a “beneficial owner” of more than 10% of the shares of Common Stock (as defined for purposes of Rule 13d-3 of the Securities Exchange Act of 1934, as amended
(the “1934 Act”)). The Company further acknowledges that no Buyer is acting as a financial advisor or fiduciary of the Company or any of its Subsidiaries (or in any similar 

  
 - 10 -

 
capacity) with respect to the Transaction Documents and the transactions contemplated hereby and thereby, and any advice given by a Buyer or any of its representatives or agents in connection
with the Transaction Documents and the transactions contemplated hereby and thereby is merely incidental to such Buyer’s purchase of the Securities. The Company further represents to each Buyer that the Company’s decision to enter into the
Transaction Documents has been based solely on the independent evaluation by the Company and its representatives. 
 (g) No
General Solicitation; Placement Agent’s Fees. Neither the Company, nor any of its Subsidiaries or affiliates, nor any Person acting on its or their behalf, has engaged in any form of general solicitation or general advertising (within the
meaning of Regulation D) in connection with the offer or sale of the Securities. The Company shall be responsible for the payment of any placement agent’s fees, financial advisory fees, or brokers’ commissions (other than for persons
engaged by any Buyer or its investment advisor) relating to or arising out of the transactions contemplated hereby, including, without limitation, placement agent fees payable to ROTH Capital Partners, LLC, as placement agent (the “Placement
Agent”) in connection with the sale of the Securities. The Company shall pay, and hold each Buyer harmless against, any liability, loss or expense (including, without limitation, attorney’s fees and out-of-pocket expenses) arising in
connection with any such claim. The Company acknowledges that it has engaged the Placement Agent in connection with the sale of the Securities. Other than the Placement Agent, neither the Company nor any of its Subsidiaries has engaged any placement
agent or other agent in connection with the sale of the Securities. 
 (h) No Integrated Offering. None of the Company,
its Subsidiaries, nor any of their affiliates or any Person acting on their behalf has, directly or indirectly, made any offers or sales of any security or solicited any offers to buy any security, under circumstances that would require registration
of any of the Securities under the 1933 Act, whether through integration with prior offerings or otherwise, or cause this offering of the Securities to require approval of stockholders of the Company for purposes of the 1933 Act or any applicable
stockholder approval provisions, including, without limitation, under the rules and regulations of any exchange or automated quotation system on which any of the securities of the Company are listed or designated. None of the Company, it
Subsidiaries, their affiliates and any Person acting on their behalf will take any action or steps referred to in the preceding sentence that would require registration of any of the Securities under the 1933 Act or cause the offering of the
Securities to be integrated with other offerings for purposes of any such applicable stockholder approval provisions. 
 (i)
Dilutive Effect. The Company understands and acknowledges that the number of Conversion Shares issuable upon conversion of the Notes and the number of Warrant Shares issuable upon exercise of the Warrants and the number of Interest Shares
issuable pursuant to the terms of the Notes will increase in certain circumstances. The Company further acknowledges that its obligation to issue Conversion Shares upon conversion of the Notes in accordance with this Agreement and the Notes and its
obligation to issue the Warrant Shares upon exercise of the Warrants in accordance with this Agreement and the Warrants is, in each case, absolute and unconditional regardless of the dilutive effect that such issuance may have on the ownership
interests of other stockholders of the Company. 

  
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 (j) Application of
Takeover Protections; Rights Agreement. The Company and its board of directors have taken all necessary action, if any, in order to render inapplicable any control share acquisition, business combination, poison pill (including any distribution
under a rights agreement) or other similar anti-takeover provision under the Certificate of Incorporation or the laws of the jurisdiction of its formation which is or could become applicable to any Buyer as a result of the transactions contemplated
by this Agreement, including, without limitation, the Company’s issuance of the Securities and any Buyer’s ownership of the Securities. The Company has not adopted a stockholder rights plan or similar arrangement relating to accumulations
of beneficial ownership of Common Stock or a change in control of the Company. 
 (k) SEC Documents; Financial
Statements. Except as disclosed in Schedule 3(k), since August 16, 2010, the Company has timely filed all reports, schedules, forms, statements and other documents required to be filed by it with the SEC pursuant to the reporting
requirements of the 1934 Act. The Company has delivered to the Buyers or their respective representatives true, correct and complete copies of the SEC Documents not available on the EDGAR system. As of their respective filing dates, the SEC
Documents complied in all material respects with the requirements of the 1934 Act and the rules and regulations of the SEC promulgated thereunder applicable to the SEC Documents, except for such rules and regulations governing the timing of such
filings, and none of the SEC Documents, at the time they were filed with the SEC, contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements
therein, in the light of the circumstances under which they were made, not misleading. As of their respective filing dates, the financial statements of the Company included in the SEC Documents complied as to form in all material respects with
applicable accounting requirements and the published rules and regulations of the SEC with respect thereto as in effect at the time of filing. Such financial statements have been prepared in accordance with generally accepted accounting principles,
consistently applied, during the periods involved (except (i) as may be otherwise indicated in such financial statements or the notes thereto, or (ii) in the case of unaudited interim statements, to the extent they may exclude footnotes or
may be condensed or summary statements) and fairly present in all material respects the financial position of the Company as of the dates thereof and the results of its operations and cash flows for the periods then ended (subject, in the case of
unaudited statements, to normal year-end audit adjustments). 
 (l) Absence of Certain Changes. Except as disclosed in
Schedule 3(l), since August 16, 2010, there has been no material adverse change and no material adverse development in the business, assets, properties, operations, condition (financial or otherwise), results of operations or prospects
of the Company. Since September 30, 2009, neither the Company nor any of its Subsidiaries has (i) declared or paid any dividends, (ii) sold any assets, individually or in the aggregate, in excess of $100,000 outside of the ordinary
course of business or (iii) had capital expenditures, individually or in the aggregate, in excess of $100,000. 
 (m) No
Undisclosed Events, Liabilities, Developments or Circumstances. Other than the Chapter 11 Cases, no event, liability, development or circumstance has occurred or exists, or is contemplated to occur with respect to the Company, its Subsidiaries
or their respective business, properties, prospects, operations or financial condition, that would be required to be disclosed by the Company under applicable securities laws on a registration statement on Form S-1 filed with the SEC relating to an
issuance and sale by the Company of its Common Stock and which has not been publicly announced. 

  
 - 12 -

  
 (n) Conduct of
Business; Regulatory Permits. The Company is not in violation of any term of or in default under any certificate of designations of any outstanding series of preferred stock of the Company, its Certificate of Incorporation or Bylaws (as such
terms are defined below) or its organizational charter or memorandum of association or certificate of incorporation or articles of association or bylaws, respectively. The Company is not in violation of any judgment, decree or order or any statute,
ordinance, rule or regulation applicable to the Company, and the Company shall not conduct its business in violation of any of the foregoing, except for possible violations which could not, individually or in the aggregate, reasonably be expected to
have a Material Adverse Effect. Without limiting the generality of the foregoing, the Company is not in violation of any of the rules, regulations or requirements of the Principal Market and has no knowledge of any facts or circumstances that would
reasonably lead to delisting or suspension of the Common Stock by the Principal Market in the foreseeable future. Except as set forth in Schedule 3(n), during the two (2) years prior to the date hereof, (i) trading in the Common
Stock has not been suspended by the SEC or the Principal Market and (ii) the Company has received no communication, written or oral, from the SEC or the Principal Market regarding the suspension or delisting of the Common Stock from the
Principal Market. The Company possesses all certificates, authorizations and permits issued by the appropriate federal, state or foreign regulatory authorities necessary to conduct its business, except where the failure to possess such certificates,
authorizations or permits would not have, individually or in the aggregate, a Material Adverse Effect, and the Company has not received any notice of proceedings relating to the revocation or modification of any such certificate, authorization or
permit. 
 (o) Foreign Corrupt Practices. Neither the Company, nor any affiliate, director, officer, agent, employee or
other Person acting on its behalf has, in the course of its actions for, or on behalf of, the Company (i) used any corporate funds for any unlawful contribution, gift, entertainment or other unlawful expenses relating to political activity;
(ii) made any direct or indirect unlawful payment to any foreign or domestic government official or employee from corporate funds; (iii) violated or is in violation of any provision of the U.S. Foreign Corrupt Practices Act of 1977, as
amended; or (iv) made any unlawful bribe, rebate, payoff, influence payment, kickback or other unlawful payment to any foreign or domestic government official or employee. 

(p) Sarbanes-Oxley Act. The Company is in compliance with any and all applicable requirements of the Sarbanes-Oxley Act of 2002
that are effective as of the date hereof, and any and all applicable rules and regulations promulgated by the SEC thereunder that are effective as of the date hereof. 
 (q) Transactions With Affiliates. Except as set forth on Schedule 3(q), none of the officers, directors or employees of the Company is presently a party to any material transaction with the
Company (other than for ordinary course services as employees, officers or directors), including any contract, agreement or other arrangement providing for the furnishing of services to or by, providing for rental of real or personal property to or
from, or otherwise requiring payments to or from any such officer, director or employee or, to the knowledge of the Company, any affiliate of such officer, director or employee. 

  
 - 13 -

  
 (r) Equity
Capitalization. 
 (i) As of the date hereof, the authorized capital stock of the Company consists of (i) 300,000,000
shares of Common Stock, of which as of the date hereof, 98,149,783 shares are issued and outstanding, 26,802,486 shares are reserved for issuance pursuant to the Company’s stock option and purchase plans and 86,339,113 shares are reserved for
issuance pursuant to securities (other than the aforementioned options, the Notes and the Warrants) exercisable or exchangeable for, or convertible into, Common Stock and (ii) 50,000,000 shares of preferred stock of the Company, par value $0.01
per share (“Preferred Stock”), of which as of the date hereof, no shares are issued and outstanding, reserved for issuance pursuant to the Company’s stock option and purchase plans or reserved for issuance pursuant to
securities exercisable or exchangeable for, or convertible into, Preferred Stock. All of such outstanding shares have been, or upon issuance in accordance with their terms, will be, validly issued and are fully paid and nonassessable. Except as
disclosed in Schedule 3(r): (A) none of the Company’s capital stock is subject to preemptive rights or any other similar rights or any liens or encumbrances suffered or permitted by the Company; (B) there are no outstanding
options, warrants, scrip, rights to subscribe to, calls or commitments of any character whatsoever relating to, or securities or rights convertible into, or exercisable or exchangeable for, any shares of capital stock of the Company, or contracts,
commitments, understandings or arrangements by which the Company is or may become bound to issue additional shares of capital stock of the Company or options, warrants, scrip, rights to subscribe to, calls or commitments of any character whatsoever
relating to, or securities or rights convertible into, or exercisable or exchangeable for, any shares of capital stock of the Company; (C) there are no outstanding debt securities, notes, credit agreements, credit facilities or other
agreements, documents or instruments evidencing Indebtedness of the Company or by which the Company is or may become bound; (D) there are no financing statements securing obligations in any material amounts, either singly or in the aggregate,
filed in connection with the Company; (E) there are no agreements or arrangements under which the Company is obligated to register the sale of any of their securities under the 1933 Act; (F) there are no outstanding securities or
instruments of the Company which contain any redemption or similar provisions, and there are no contracts, commitments, understandings or arrangements by which the Company is or may become bound to redeem a security of the Company; (G) there
are no securities or instruments containing anti-dilution or similar provisions that will be triggered by the issuance of the Securities; (H) the Company does not have any stock appreciation rights or “phantom stock” plans or
agreements or any similar plan or agreement; and (I) the Company has no liabilities or obligations required to be disclosed in the SEC Documents but not so disclosed in the SEC Documents, other than those incurred in the ordinary course of the
Company’s business and which, individually or in the aggregate, do not or would not have a Material Adverse Effect. The Company has furnished or made available to the Buyers true, correct and complete copies of the Company’s Certificate of
Incorporation, as amended and as in effect on the date hereof (the “Certificate of Incorporation”), and the Company’s Bylaws, as amended and as in effect on the date hereof (the “Bylaws”), and the terms of all
securities convertible into, or exercisable or exchangeable for, shares of Common Stock and the material rights of the holders thereof in respect thereto. 

  
 - 14 -

  
 (ii) The equity
capitalization of the Company, immediately after giving effect to the transactions contemplated by this Agreement and the effectiveness of the Plan, will be as set forth in Schedule 3(r)(ii). 

(s) Indebtedness and Other Contracts. 
 (i) Except as disclosed in Schedule 3(s)(i), , the Company (A) has no outstanding Indebtedness (as defined below), (B) is not a party to any contract, agreement or instrument, the
violation of which, or default under which, by the other party(ies) to such contract, agreement or instrument could reasonably be expected to result in a Material Adverse Effect, (C) is in violation of any term of or in default under any
contract, agreement or instrument relating to any Indebtedness, except where such violations and defaults would not result, individually or in the aggregate, in a Material Adverse Effect, or (D) is a party to any contract, agreement or
instrument relating to any Indebtedness, the performance of which, in the judgment of the Company’s officers, has or is expected to have a Material Adverse Effect. For purposes of this Agreement: (x) “Indebtedness” of any
Person means, without duplication (1) all indebtedness for borrowed money, (2) all obligations issued, undertaken or assumed as the deferred purchase price of property or services, including, without limitation, “capital leases”
in accordance with United States generally accepted accounting principles (other than trade payables entered into in the ordinary course of business), (3) all reimbursement or payment obligations with respect to letters of credit, surety bonds
and other similar instruments, (4) all obligations evidenced by notes, bonds, debentures or similar instruments, including obligations so evidenced incurred in connection with the acquisition of property, assets or businesses, (5) all
indebtedness created or arising under any conditional sale or other title retention agreement, or incurred as financing, in either case with respect to any property or assets acquired with the proceeds of such indebtedness (even though the rights
and remedies of the seller or bank under such agreement in the event of default are limited to repossession or sale of such property), (6) all monetary obligations under any leasing or similar arrangement which, in connection with generally
accepted accounting principles, consistently applied for the periods covered thereby, is classified as a capital lease, (7) all indebtedness referred to in clauses (1) through (6) above secured by (or for which the holder of such
Indebtedness has an existing right, contingent or otherwise, to be secured by) any mortgage, lien, pledge, charge, security interest or other encumbrance upon or in any property or assets (including accounts and contract rights) owned by any Person,
even though the Person which owns such assets or property has not assumed or become liable for the payment of such indebtedness, and (8) all Contingent Obligations in respect of indebtedness or obligations of others of the kinds referred to in
clauses (1) through (7) above; (y) “Contingent Obligation” means, as to any Person, any direct or indirect liability, contingent or otherwise, of that Person with respect to any indebtedness, lease, dividend or other
obligation of another Person if the primary purpose or intent of the Person incurring such liability, or the primary effect thereof, is to provide assurance to the obligee of such liability that such liability will be paid or discharged, or that any
agreements relating thereto will be complied with, or that the holders of such liability will be protected (in whole or in part) against loss with respect thereto; and (z) “Person” means an individual, a limited liability
company, a partnership, a joint venture, a corporation, a trust, an unincorporated organization and a government or any department or agency thereof. 

  
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 (ii) The Indebtedness
of the Company and its Subsidiaries, after giving effect to the transactions contemplated by this Agreement and the effectiveness of the Plan, will be as set forth in Schedule 3(s)(ii), which Schedule shall contain a description of the
material terms of any such Indebtedness. 
 (t) Absence of Litigation. There is no action, suit, proceeding, inquiry or
investigation before or by the Principal Market, any court, public board, government agency, self-regulatory organization or body pending or, to the knowledge of the Company, threatened against or affecting the Company, the Common Stock or any of
the Company’s officers or directors in their capacities as such, except as set forth in Schedule 3(t). The matters set forth in Schedule 3(t) would not reasonably be expected to have a Material Adverse Effect. 

(u) Insurance. The Company is insured by insurers of recognized financial responsibility against such losses and risks and in such
amounts as management of the Company believes to be prudent and customary in the business in which the Company is engaged. The Company has not been refused any insurance coverage sought or applied for and the Company has no reason to believe that it
will not be able to renew its existing insurance coverage as and when such coverage expires or to obtain similar coverage from similar insurers as may be necessary to continue its business at a cost that would not have a Material Adverse Effect.

 (v) Employee Relations. 
 (i) The Company is not a party to any collective bargaining agreement and does not employ any member of a union. The Company believes that its relations with its employees are good. Except as set forth on
Schedule 3(v), no current executive officer of the Company (as defined in Rule 501(f) of the 1933 Act) has notified the Company that such officer intends to leave the Company or otherwise terminate such officer’s employment with the
Company. No executive officer of the Company, to the knowledge of the Company, is, or is now expected to be, in violation of any material term of any employment contract, confidentiality, disclosure or proprietary information agreement,
non-competition agreement, or any other contract or agreement or any restrictive covenant, and the continued employment of each such executive officer, to the knowledge of the Company, does not subject the Company to any liability with respect to
any of the foregoing matters. 
 (ii) The Company is in compliance with all federal, state, local and foreign laws and
regulations respecting labor, employment and employment practices and benefits, terms and conditions of employment and wages and hours, except where failure to be in compliance would not, either individually or in the aggregate, reasonably be
expected to result in a Material Adverse Effect. 
 (w) Title. The Company has good and marketable title in fee simple
with respect to all real property and good and marketable title to all personal property owned by it which is material to the business of the Company, in each case free and clear of all liens, encumbrances and defects except such as do not
materially affect the value of such property and do not interfere with the use made and proposed to be made of such property by the Company. Any real property and facilities held under lease by the Company are held by it under valid, subsisting and
enforceable leases with such exceptions as are not material and do not interfere with the use made and proposed to be made of such property and buildings by the Company. 

  
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 (x) Intellectual
Property Rights. The Company owns or possesses adequate rights or licenses to use all trademarks, trade names, service marks, service mark registrations, service names, original works of authorship, patents, patent rights, copyrights,
inventions, licenses, approvals, governmental authorizations, trade secrets and other intellectual property rights and all applications and registrations therefor (“Intellectual Property Rights”) necessary to conduct its business as
now conducted. Except as set forth in Schedule 3(x), all of the Company’s Intellectual Property Rights and relevant applications therefor have been duly registered by the United States Patent and Trademark Office, or the equivalent
offices of non-US jurisdictions where such Intellectual Property Rights are registrable with such governmental or other registration authority and are not subject to a pending registration application, and have been properly maintained in accordance
with applicable law. Except as set forth in Schedule 3(x), none of the Company’s Intellectual Property Rights have expired or terminated or have been abandoned or are expected to expire or terminate or are expected to be abandoned,
within three years from the date of this Agreement. The Company does not have any knowledge of any infringement by the Company or its Subsidiaries of Intellectual Property Rights of others. There is no claim, action or proceeding being made or
brought, or to the knowledge of the Company or any of its Subsidiaries, being threatened, against the Company or any of its Subsidiaries regarding its Intellectual Property Rights. The Company is not aware of any facts or circumstances which might
give rise to any of the foregoing infringements or claims, actions or proceedings. The Company has taken reasonable security measures to protect the secrecy, confidentiality and value of all of its Intellectual Property Rights. 

(y) Environmental Laws. The Company (i) is in compliance with any and all Environmental Laws (as hereinafter defined),
(ii) has received all permits, licenses or other approvals required of them under applicable Environmental Laws to conduct its business and (iii) is in compliance with all terms and conditions of any such permit, license or approval where,
in each of the foregoing clauses (i), (ii) and (iii), the failure to so comply could be reasonably expected to have, individually or in the aggregate, a Material Adverse Effect. The term “Environmental Laws” means all federal,
state, local or foreign laws relating to pollution or protection of human health or the environment (including, without limitation, ambient air, surface water, groundwater, land surface or subsurface strata), including, without limitation, laws
relating to emissions, discharges, releases or threatened releases of chemicals, pollutants, contaminants, or toxic or hazardous substances or wastes (collectively, “Hazardous Materials”) into the environment, or otherwise relating
to the manufacture, processing, distribution, use, treatment, storage, disposal, transport or handling of Hazardous Materials, as well as all authorizations, codes, decrees, demands or demand letters, injunctions, judgments, licenses, notices or
notice letters, orders, permits, plans or regulations issued, entered, promulgated or approved thereunder. 
 (z) Investment
Company Status. The Company is not, and upon consummation of the sale of the Securities, and for so long any Buyer holds any Securities, will not be, an “investment company,” a company controlled by an “investment company” or
an “affiliated person” of, or “promoter” or “principal underwriter” for, an “investment company” as such terms are defined in the Investment Company Act of 1940, as amended. 

  
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 (aa) Tax
Status. The Company (i) has made or filed all U.S. federal, state, local and foreign income and all other tax returns, reports and declarations required by any jurisdiction to which it is subject, (ii) has paid all taxes and other
governmental assessments and charges that are material in amount, shown or determined to be due on such returns, reports and declarations, except those being contested in good faith and (iii) has set aside on its books provision reasonably
adequate for the payment of all taxes for periods subsequent to the periods to which such returns, reports or declarations apply. There are no unpaid taxes in any material amount claimed to be due by the taxing authority of any jurisdiction, and the
officers of the Company know of no basis for any such claim. 
 (bb) Internal Accounting and Disclosure Controls. The
Company and each of its Subsidiaries maintain a system of internal accounting controls sufficient to provide reasonable assurance that (i) transactions are executed in accordance with management’s general or specific authorizations,
(ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with generally accepted accounting principles and to maintain asset and liability accountability, (iii) access to assets or incurrence
of liabilities is permitted only in accordance with management’s general or specific authorization and (iv) the recorded accountability for assets and liabilities is compared with the existing assets and liabilities at reasonable intervals
and appropriate action is taken with respect to any difference. The Company maintains disclosure controls and procedures (as such term is defined in Rule 13a-15 under the 1934 Act) that are effective in ensuring that information required to be
disclosed by the Company in the reports that it files or submits under the 1934 Act is recorded, processed, summarized and reported, within the time periods specified in the rules and forms of the SEC, including, without limitation, controls and
procedures designed in to ensure that information required to be disclosed by the Company in the reports that it files or submits under the 1934 Act is accumulated and communicated to the Company’s management, including its principal executive
officer or officers and its principal financial officer or officers, as appropriate, to allow timely decisions regarding required disclosure. Since September 30, 2010, neither the Company nor any of its Subsidiaries has received any notice or
correspondence from any accountant relating to any material weakness in any part of the system of internal accounting controls of the Company or any of its Subsidiaries. 
 (cc) Off Balance Sheet Arrangements. There is no transaction, arrangement, or other relationship between the Company and an unconsolidated or other off balance sheet entity that is required to be
disclosed by the Company in its 1934 Act filings and is not so disclosed or that otherwise would be reasonably likely to have a Material Adverse Effect. 
 (dd) Collateral. No creditor of the Company has rights in or to the Account. The Exchange Notes shall constitute general unsecured obligations of the Company. 

(ee) Transfer Taxes. On the Closing Date, all stock transfer or other taxes (other than income or similar taxes) which are
required to be paid in connection with the sale and transfer of the Securities to be sold to each Buyer hereunder, if any, will be, or will have been, fully paid or provided for by the Company, and all laws imposing such taxes will be or will have
been complied with. 

  
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 (ff) Manipulation
of Price. The Company has not, and to its knowledge no one acting on its behalf has, (i) taken, directly or indirectly, any action designed to cause or to result, or that could reasonably be expected to cause or result, in the stabilization
or manipulation of the price of any security of the Company to facilitate the sale or resale of any of the Securities, (ii) other than the Placement Agent, sold, bid for, purchased, or paid any compensation for soliciting purchases of, any of
the Securities, or (iii) other than the Placement Agent, paid or agreed to pay to any person any compensation for soliciting another to purchase any other securities of the Company. 

(gg) Acknowledgement Regarding Buyers’ Trading Activity. It is understood and acknowledged by the Company that (i) none
of the Buyers has been asked to agree, nor has any Buyer agreed, to desist from purchasing or selling, long and/or short, securities of the Company, or “derivative” securities based on securities issued by the Company or to hold the
Securities for any specified term; (ii) any Buyer, and counter-parties in “derivative” transactions to which any such Buyer is a party, directly or indirectly, presently may have a “short” position in the Common Stock, and
(iii) each Buyer shall not be deemed to have any affiliation with or control over any arm’s length counter-party in any “derivative” transaction. The Company further understands and acknowledges that one or more Buyers may engage
in hedging and/or trading activities at various times during the period that the Securities are outstanding, including, without limitation, during the periods that the value of the Conversion Shares, the Interest Shares and/or the Warrant Shares are
being determined and (b) such hedging and/or trading activities, if any, can reduce the value of the existing stockholders’ equity interest in the Company both at and after the time the hedging and/or trading activities are being
conducted. The Company acknowledges that such aforementioned hedging and/or trading activities do not constitute a breach of this Agreement, the Notes, the Warrants or any of the documents executed in connection herewith. 

(hh) No Additional Agreements. The Company does not have any agreement or understanding with any Buyer with respect to the
transactions contemplated by the Transaction Documents other than as specified in the Transaction Documents. 
 (ii)
Disclosure. The Company confirms that neither it nor any other Person acting on its behalf has provided any of the Buyers or their agents or counsel with any information that constitutes or could reasonably be expected to constitute material,
nonpublic information. The Company understands and confirms that each of the Buyers will rely on the foregoing representations in effecting transactions in securities of the Company. All disclosure provided to the Buyers regarding the Company, or
any of its Subsidiaries, their business and the transactions contemplated hereby, including the disclosure schedules to this Agreement, furnished by or on behalf of the Company in writing in connection with the transactions contemplated hereby is
true and correct and does not contain any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements made therein, in the light of the circumstances under which they were made, not misleading.
Each press release issued by the Company or any of its Subsidiaries during the twelve (12) months preceding the date of this Agreement did not at the time of release contain any untrue statement of a material fact or omit to state a material
fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. No event or circumstance has occurred or information exists with respect to the
Company or its business, 

  
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properties, prospects, operations or financial conditions, which, under applicable law, rule or regulation, requires public disclosure or announcement by the Company but which has not been so
publicly announced or disclosed. The Company acknowledges and agrees that no Buyer makes or has made any representations or warranties with respect to the transactions contemplated hereby other than those specifically set forth in Section 2.

 (jj) Shell Company Status. The Company is not, and has never been, an issuer identified in Rule 144(i)(1). 

(kk) Stock Option Plans. Each stock option granted by the Company was granted (i) in accordance with the terms of the
applicable Company stock option plan and (ii) with an exercise price at least equal to the fair market value of the Common Stock on the date such stock option would be considered granted under GAAP and applicable law. No stock option granted
under the Company’s stock option plan has been backdated. The Company has not knowingly granted, and there is no and has been no Company policy or practice to knowingly grant, stock options prior to, or otherwise knowingly coordinate the grant
of stock options with, the release or other public announcement of material information regarding the Company or its financial results or prospects. 
 (ll) No Disagreements with Accountants and Lawyers. There are no material disagreements of any kind presently existing, or reasonably anticipated by the Company to arise, between the Company and
the accountants and lawyers formerly or presently employed by the Company and the Company is current with respect to any fees owed to its accountants and lawyers which could affect the Company’s ability to perform any of its obligations under
any of the Transaction Documents. 
 4. COVENANTS. 

(a) Best Efforts. Each party shall use its reasonable best efforts timely to satisfy each of the covenants and the conditions to
be satisfied by it as provided in Sections 6 and 7 of this Agreement. 
 (b) Form D and Blue Sky. The Company agrees to
file a Form D with respect to the Securities as required under Regulation D and to provide a copy thereof to each Buyer promptly after such filing. The Company shall take such action as the Company shall reasonably determine is necessary in order to
obtain an exemption for or to qualify the Securities for sale to the Buyers at the Closing pursuant to this Agreement under applicable securities or “Blue Sky” laws of the states of the United States (or to obtain an exemption from such
qualification), and shall provide evidence of any such action so taken to the Buyers no later than five (5) Business Days after the Closing Date. The Company shall make all filings and reports relating to the offer and sale of the Securities
required under applicable securities or “Blue Sky” laws of the states of the United States following the Closing Date. 
 (c) Reporting Status. Until the date on which the Buyers (or any transferee or assignee thereof) may sell all the Conversion Shares, the Interest Shares and Warrant Shares under Rule 144 in any
three month period, without any restrictions or limitations and without the requirement to be in compliance with Rule 144(c)(1) (the “Reporting Period”), the Company 

  
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shall timely file all reports required to be filed with the SEC pursuant to the 1934 Act, and during such Reporting Period, the Company shall not terminate its status as an issuer required to
file reports under the 1934 Act even if the 1934 Act or the rules and regulations thereunder would no longer require or otherwise permit such termination. 
 (d) [Intentionally Omitted]. 
 (e) Financial Information. The Company
agrees to send the following to each Buyer (or any transferee or assignee thereof) during the Reporting Period (i) unless the following are filed with the SEC through EDGAR and are available to the public through the EDGAR system, within one
(1) Business Day after the filing thereof with the SEC, a copy of its Annual Reports on Form 10-K, any Quarterly Reports on Form 10-Q, any Current Reports on Form 8-K (or any analogous reports under the 1934 Act) and any registration statements
(other than on Form S-8) or amendments filed pursuant to the 1933 Act and (ii) copies of any notices and other information made available or given to the stockholders of the Company generally, contemporaneously with the making available or
giving thereof to the stockholders. As used herein, “Business Day” means any day other than Saturday, Sunday or other day on which commercial banks in The City of New York are authorized or required by law to remain closed.

 (f) Listing. The Company shall promptly secure the listing of all of the Conversion Shares and Warrant Shares upon
each national securities exchange and automated quotation system, if any, upon which the Common Stock is then listed (subject to official notice of issuance) and shall maintain such listing of all such Conversion Shares and Warrant Shares from time
to time issuable under the terms of the Transaction Documents. The Company shall maintain the authorization for quotation of the Common Stock on the Principal Market or any other Eligible Market (as defined in the Warrants). The Company shall not
take any action which would be reasonably expected to result in the delisting or suspension of the Common Stock on the Principal Market unless the Company has previously secured the listing on another Eligible Market. The Company shall pay all fees
and expenses in connection with satisfying its obligations under this Section 4(f). 
 (g) Fees. The Company shall
reimburse Empery (a Buyer) or its designee(s) (in addition to any other expense amounts paid to any Buyer or its counsel prior to the date of this Agreement) for all reasonable costs and expenses incurred in connection with the transactions
contemplated by the Transaction Documents (including all reasonable legal fees and disbursements in connection therewith, documentation and implementation of the transactions contemplated by the Transaction Documents and due diligence in connection
therewith) in an amount not to exceed $100,000 (the “Fee Cap”) if the Chapter 11 Case relating to the Company is uncontested; provided, that the Fee Cap shall not apply if the Chapter 11 Case relating to the Company becomes
contested, which amount may be withheld by such Buyer from its Purchase Price at the Closing. The Company shall be responsible for the payment of any placement agent’s fees, financial advisory fees, or broker’s commissions (other than for
Persons engaged by any Buyer) relating to or arising out of the transactions contemplated hereby, including, without limitation, any fees or commissions payable to the Placement Agent. The Company shall pay, and hold each Buyer harmless against, any
liability, loss or expense (including, without limitation, reasonable attorney’s fees and out-of-pocket expenses) arising in connection with any claim relating to any such payment. Except as otherwise set forth in the Transaction Documents,
each party to this Agreement shall bear its own expenses in connection with the sale of the Securities to the Buyers. 

  
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 (h) Pledge of
Securities. The Company acknowledges and agrees that the Securities may be pledged by a Buyer (or any transferee or assignee thereof) in connection with a bona fide margin agreement or other loan or financing arrangement that is secured by the
Securities. The pledge of Securities shall not be deemed to be a transfer, sale or assignment of the Securities hereunder, and no Buyer (or any transferee or assignee thereof) effecting a pledge of Securities shall be required to provide the Company
with any notice thereof or otherwise make any delivery to the Company pursuant to this Agreement or any other Transaction Document, including, without limitation, Section 2(i) hereof; provided that a Buyer (or any transferee or assignee
thereof) and its pledgee shall be required to comply with the provisions of Section 2(i) hereof in order to effect a sale, transfer or assignment of Securities to such pledgee. The Company hereby agrees to execute and deliver such documentation
as a pledgee of the Securities may reasonably request in connection with a pledge of the Securities to such pledgee by a Buyer (or any transferee or assignee thereof). 
 (i) Disclosure of Transactions and Other Material Information. On or before 8:30 a.m., New York City time, on the fourth (4th) Business Day after this Agreement has been executed, the Company
shall file a Current Report on Form 8-K describing the terms of the transactions contemplated by the Transaction Documents in the form required by the 1934 Act and attaching the material Transaction Documents (including, without limitation, this
Agreement (and all schedules and exhibits to this Agreement), the form of the Notes, the form of Warrants, the Security Documents and the form of Lock-Up Agreement as exhibits to such filing, all as required by the rules and regulations of the SEC
(including all attachments, the “8-K Filing”). From and after the filing of the 8-K Filing with the SEC, no Buyer shall be in possession of any material, nonpublic information received from the Company, any of its Subsidiaries or
any of their respective officers, directors, employees or agents, that is not disclosed in the 8-K Filing. The Company shall not, and shall cause each of its Subsidiaries and its and each of their respective officers, directors, employees and
agents, not to, provide any Buyer with any material, nonpublic information regarding the Company or any of its Subsidiaries from and after the filing of the 8-K Filing with the SEC without the express prior written consent of such Buyer. If a Buyer
has, or believes it has, received, without its prior written consent, any such material, nonpublic information regarding the Company or any of its Subsidiaries from the Company, any of its Subsidiaries or any of their respective officers, directors,
affiliates or agents, it may provide the Company with written notice thereof. The Company shall, within two (2) Trading Days (as defined in the Notes) of receipt of such notice, make public disclosure of such material, nonpublic information. In
the event of a breach of the foregoing covenant by the Company, any of its Subsidiaries, or any of its or their respective officers, directors, employees and agents, in addition to any other remedy provided herein or in the Transaction Documents, a
Buyer shall have the right to make a public disclosure, in the form of a press release, public advertisement or otherwise, of such material, nonpublic information without the prior approval by the Company, its Subsidiaries, or any of its or their
respective officers, directors, employees or agents. No Buyer shall have any liability to the Company, its Subsidiaries, or any of its or their respective officers, directors, employees, stockholders or agents for any such disclosure. To the extent
that the Company, Subsidiary or any of its or their officers, directors, employees or agents delivers any material, non-public information to a Buyer without such Buyer’s consent, the Company, on

  
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behalf of it, its Subsidiaries and its and its Subsidiaries, officers, directors, employees and agents, hereby covenants and agrees that such Buyer shall not have any duty of confidentiality with
respect to, or a duty not to trade on the basis of, such material, non-public information. Subject to the foregoing, neither the Company, its Subsidiaries nor any Buyer shall issue any press releases or any other public statements with respect to
the transactions contemplated hereby; provided, however, that the Company shall be entitled, without the prior approval of any Buyer, to make any press release or other public disclosure with respect to such transactions (i) in substantial
conformity with the 8-K Filing and contemporaneously therewith and (ii) as is required by applicable law and regulations (provided that in the case of clause (i) each Buyer shall be consulted by the Company in connection with any such
press release or other public disclosure prior to its release). Without the prior written consent of any applicable Buyer, neither the Company nor any of its affiliates shall disclose the name of such Buyer in any filing, announcement, release or
otherwise, except as required by law or the rules and regulations of the SEC or other governmental authority. 
 (j)
Collateral Agent. 
 (i) Each Buyer hereby (a) appoints Empery, as the collateral agent hereunder and under the
Security Documents (in such capacity, the “Collateral Agent”), and (b) authorizes the Collateral Agent (and its officers, directors, employees and agents) to take such action on such Buyer’s behalf in accordance with the
terms hereof and thereof. The Collateral Agent shall not have, by reason hereof or the Security Documents, a fiduciary relationship in respect of any Buyer. Neither the Collateral Agent nor any of its officers, directors, employees and agents shall
have any liability to any Buyer for any action taken or omitted to be taken in connection hereof or the Security Documents except to the extent caused by its own gross negligence or willful misconduct, and each Buyer agrees to defend, protect,
indemnify and hold harmless the Collateral Agent and all of its officers, directors, employees and agents (collectively, the “Collateral Agent Indemnitees”) from and against any losses, damages, liabilities, obligations, penalties,
actions, judgments, suits, fees, costs and expenses (including, without limitation, reasonable attorneys’ fees, costs and expenses) incurred by such Collateral Agent Indemnitee, whether direct, indirect or consequential, arising from or in
connection with the performance by such Collateral Agent Indemnitee of the duties and obligations of Collateral Agent pursuant hereto or any of the Security Documents. 
 (ii) The Collateral Agent shall be entitled to rely upon any written notices, statements, certificates, orders or other documents or any telephone message believed by it in good faith to be genuine and
correct and to have been signed, sent or made by the proper Person, and with respect to all matters pertaining to this Agreement or any of the other Transaction Documents and its duties hereunder or thereunder, upon advice of counsel selected by it.

 (iii) The Collateral Agent may resign from the performance of all its functions and duties hereunder and under the Notes and
the Security Documents at any time by giving at least ten (10) Business Days prior written notice to the Company and each holder of the Notes. Such resignation shall take effect upon the acceptance by a successor Collateral Agent of appointment
as provided below. Upon any such notice of resignation, the holders of two-thirds of the outstanding principal under the Notes shall appoint a successor Collateral Agent. Upon the 

  
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acceptance of the appointment as Collateral Agent, such successor Collateral Agent shall succeed to and become vested with all the rights, powers, privileges and duties of the retiring Collateral
Agent, and the retiring Collateral Agent shall be discharged from its duties and obligations under this Agreement, the Notes and the Security Documents. After any Collateral Agent’s resignation hereunder, the provisions of this
Section 4(j) shall inure to its benefit. If a successor Collateral Agent shall not have been so appointed within said ten (10) Business Day period, the retiring Collateral Agent shall then appoint a successor Collateral Agent who shall
serve until such time, if any, as the holders of two-thirds of the outstanding principal under the Notes appoint a successor Collateral Agent as provided above. 
 (k) Additional Notes; Variable Securities. So long as any Buyer beneficially owns any Notes, the Company will not issue any Notes other than to the Buyers as contemplated hereby. 

(l) Corporate Existence. So long as any Buyer beneficially owns any Securities, the Company shall maintain its corporate existence
and shall not be party to any Fundamental Transaction (as defined in the Notes) unless the Company is in compliance with the applicable provisions governing Fundamental Transactions set forth in the Notes and the Warrants. 

(m) Reservation of Shares. So long as any Buyer owns any Securities, the Company shall take all action necessary to at all times
after the Stockholder Approval (as defined below) have authorized, and reserved for the purpose of issuance, no less than the sum of (A) 130% of the sum of the number of shares of Common Stock issuable (i) upon conversion of the Notes,
(ii) as Interest Shares pursuant to the terms of the Notes and (iii) upon exercise of the Series A Warrants then outstanding and (B) the maximum number of shares of Common Stock issuable upon exercise of the Series B Warrants then
outstanding (in each case, without taking into account any limitations on the conversion of the Notes or exercise of the Warrants set forth in the Notes and Warrants, respectively). If at any time the number of shares of Common Stock authorized and
reserved for issuance is not sufficient to meet the Required Reserved Amount, the Company will promptly take all corporate action necessary to authorize and reserve a sufficient number of shares, including, without limitation, calling a special
meeting of stockholders to authorize additional shares to meet the Company’s obligations under Section 3(c), in the case of an insufficient number of authorized shares, obtain stockholder approval of an increase in such authorized number
of shares, and voting the management shares of the Company in favor of an increase in the authorized shares of the Company to ensure that the number of authorized shares is sufficient to meet the Required Reserved Amount. 

(n) Conduct of Business. The Company shall not file any registration statement for any of its or its Subsidiaries securities until
thirty (30) days after all of the Conversion Shares and Warrant Shares are freely transferable pursuant to Section 1145 of the Bankruptcy Code without any restrictions or limitations. 

(o) Additional Issuances of Securities. 
 (i) For purposes of this Section 4(o), the following definitions shall apply. 

  
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 (1)
“Convertible Securities” means any stock or securities (other than Options) convertible into or exercisable or exchangeable for shares of Common Stock. 

(2) “Options” means any rights, warrants or options to subscribe for or purchase Common Stock or
Convertible Securities. 
 (3) “Common Stock Equivalents” means, collectively, Options and
Convertible Securities. 
 (ii) From the date hereof until sixty (60) days after the Effective Date (the “Trigger
Date”), the Company will not, directly or indirectly, file any registration statement with the SEC. From the date hereof until the Trigger Date, the Company will not, (i) directly or indirectly, offer, sell, grant any option to
purchase, or otherwise dispose of (or announce any offer, sale, grant or any option to purchase or other disposition of) any of its or its Subsidiaries’ equity or equity equivalent securities, including without limitation any debt, preferred
stock or other instrument or security that is, at any time during its life and under any circumstances, convertible into or exchangeable or exercisable for Common Stock or Common Stock Equivalents (any such sale, grant, disposition or announcement
being referred to as a “Subsequent Placement”) or (ii) be party to any solicitations, negotiations or discussions with regard to the foregoing. 
 (iii) From the Trigger Date until the later of: (a) the first anniversary of the Effective Date, and (b), if any Subsequent Placement is consummated following the Closing Date and prior to the first
anniversary of the Effective Date and a Buyer participates in such Subsequent Offering to the maximum extent permitted hereunder, solely with respect to such Buyer, the first anniversary of the consummation of such Subsequent Placement, the Company
will not, directly or indirectly, effect any Subsequent Placement unless the Company shall have first complied with this Section 4(o)(iii). 
 (1) At least two (2) Business Day prior to the consummation of any proposed or intended Subsequent Placement, the Company or its agent shall contact each Buyer and ask whether such Buyer is willing
to receive material non-public information (each such notice, a “Pre-Notice”); provided that neither the Company nor any of its agents shall provide any material non-public information with respect to the Company to any Buyer
without the express written consent of such Buyer to receive such material non-public information. Upon the written request of each Buyer no later than one (1) Business Day after such Buyer’s receipt of such Pre-Notice, and only upon the
written request by such Buyer, the Company shall promptly, but no later than one (1) Business Day after such request, deliver via facsimile and email to the applicable facsimile number and email address set forth on the Schedule of Buyers
attached hereto, to each Buyer an irrevocable written notice (the “Offer Notice”) of any proposed or intended issuance or sale or exchange (the “Offer”) of the securities being offered (the “Offered
Securities”) in a Subsequent Placement, which Offer Notice shall (w) identify and describe the Offered Securities, (x) describe the price and other terms upon which they are to be issued,

  
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sold or exchanged, and the number or amount of the Offered Securities to be issued, sold or exchanged, (y) identify the persons or entities (if known and unless prohibited in writing by such
persons or entities) to which or with which the Offered Securities are to be issued, sold or exchanged and (z) offer to issue and sell to or exchange with such Buyers, in the aggregate, no less than twenty-five percent (25%) of the Offered
Securities issued, sold or exchanged in such Subsequent Placement, allocated among such Buyers based on each Buyer’s pro rata percentage of the aggregate principal amount of Notes purchased hereunder (the “Basic Amount”).

 (2) To accept an Offer, in whole or in part, such Buyer must deliver a written notice to the Company prior to
the end of the first (1st) Business Day after the Company’s delivery of the Offer Notice via facsimile and email to the applicable facsimile number and email address set forth on the Schedule of Buyers attached hereto, provided that
confirmation of transmission is mechanically or electronically generated, as the case may be, and kept on file by the Company (the “Offer Period”), setting forth the percentage of such Buyer’s Basic Amount that such Buyer
elects to purchase (the “Notice of Acceptance”). Notwithstanding anything to the contrary contained herein, if the Company desires to materially modify or amend the terms and conditions of the Offer prior to the expiration of the
Offer Period (other than the number or amount of Offered Securities to be issued, sold or exchanged), the Company may deliver to the Buyers a new Offer Notice and the Offer Period shall expire on the first (1st) Business Day after such
Buyer’s receipt of such new Offer Notice. 
 (3) The Company shall have ten (10) Business Days from the
expiration of the Offer Period above (i) to offer, issue, sell or exchange all or any part of such Offered Securities as to which a Notice of Acceptance has not been given by the Buyers (the “Refused Securities”) pursuant to a
definitive agreement (the “Subsequent Placement Agreement”) but only upon terms and conditions (including, without limitation, unit prices and interest rates) that are not more favorable to the acquiring person or persons or less
favorable to the Company than those set forth in the Offer Notice (without first delivering to each Buyer a new Offer Notice) and (ii) to publicly announce (a) the execution of such Subsequent Placement Agreement, and (b) either
(x) the consummation of the transactions contemplated by such Subsequent Placement Agreement or (y) the termination of such Subsequent Placement Agreement, which shall be filed with the SEC on a Current Report on Form 8-K with such
Subsequent Placement Agreement and any documents contemplated therein filed as exhibits thereto; provided, however, that if the Offered Securities are to be sold pursuant to a registration statement filed with the SEC pursuant to the
1933 Act, such period shall be extended to the earlier of (i) three (3) Business Days following such registration statement being declared effective by the SEC and (ii) fifteen (15) Business Days after the Company, any of its
Subsidiaries or any of their respective officers, directors, affiliates or agents delivered material nonpublic information regarding the Company or any of its Subsidiaries to any Buyer in connection with an applicable Offer. 

  
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 (4)
[Intentionally Omitted] 
 (5) Upon the closing of the issuance, sale or exchange of any Offered Securities, the
Buyers shall acquire from the Company, and the Company shall issue to the Buyers, the percentage of Offered Securities specified in the Notices of Acceptance upon the terms and conditions specified in the Offer. The purchase by the Buyers of any
Offered Securities is subject in all cases to the preparation, execution and delivery by the Company and the Buyers of a purchase agreement relating to such Offered Securities reasonably satisfactory in form and substance to the Buyers and their
respective counsel. 
 (6) Any Offered Securities not acquired by the Buyers or other persons in accordance with
Section 4(o)(iii)(3) above may not be issued, sold or exchanged until they are again offered to the Buyers under the procedures specified in this Agreement. 

(7) The Company and the Buyers agree that if any Buyer elects to participate in the Offer neither the Subsequent Placement
Agreement with respect to such Offer nor any other transaction documents related thereto (collectively, the “Subsequent Placement Documents”) shall include any term or provisions whereby any Buyer shall be required to agree to any
restrictions in trading as to any securities of the Company owned by such Buyer prior to such Subsequent Placement. 
 (8) Notwithstanding anything to the contrary in this Section 4(o) and unless otherwise agreed to by the Buyers, the Company shall either confirm in writing to the Buyers that the transaction with
respect to the Subsequent Placement has been abandoned or shall publicly disclose its intention to issue the Offered Securities, in either case in such a manner such that the Buyers will not be in possession of material non-public information, by
the fifteenth (15th) Business Day following the Offer
Period. If by the fifteenth (15th) Business Day
following the Offer Period no public disclosure regarding a transaction with respect to the Offered Securities has been made, and no notice regarding the abandonment of such transaction has been received by the Buyers, such transaction shall be
deemed to have been abandoned and the Buyers shall not be deemed to be in possession of any material, non-public information with respect to the Company. Should the Company decide to pursue such transaction with respect to the Offered Securities,
the Company shall provide each Buyer with another Offer Notice and each Buyer will again have the right of participation set forth in this Section 4(o)(iii). The Company shall not be permitted to deliver more than one such Offer Notice (other
than the delivery of an Offer Notice contemplated pursuant to Section 4(o)(iii)(3)) to the Buyers in any 60 day period. 

(iv) The restrictions contained in subsections (ii) and (iii) of this Section 4(o) shall not apply in connection with the
issuance of any Excluded Securities. As used herein, “Excluded Securities” shall mean any Common Stock issued or issuable: (i) in 

  
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connection with any Approved Stock Plan, (ii) upon exercise of the Warrants or conversion of the Notes; provided that the terms of the Warrants or Other Notes (as defined in the Notes) are
not amended, modified or changed on or after the date hereof other than pursuant to Section 2(b) of the Warrant and other than pursuant to any anti-dilution provisions of the Note, the Other Notes and the Warrants; (iii) upon conversion or
exercise of any Options or Convertible Securities which are outstanding on the day immediately preceding the date hereof; provided that the exercise prices or conversion prices of such Options or Convertible Securities are not decreased and the
number of shares issuable upon exercise or conversion are not increased other than in accordance with their terms on or after the date hereof, (iv) in connection with mergers, acquisitions, strategic business transactions (including, without
limitation, license, distribution or development partnerships) or joint ventures, in each case with non-affiliated third parties and otherwise on an arm’s-length basis, the purpose of which is not to raise additional capital; provided that any
Common Stock issued or issuable in connection with any transaction contemplated by this clause (iv) that is either (A) attributable to capital raising for the Company or its Subsidiaries (other than nominal amounts of capital or
(B) to raise capital for the Company or its Subsidiaries, directly or indirectly, in connection with any transaction contemplated by this clause (iv), including, without limitation, securities issued in one or more related transactions or that
result in similar economic consequences, shall not be deemed to be Excluded Securities and (v) pursuant to the Plan. As used herein, “Approved Stock Plan” means any employee benefit plan which has been approved by the Board of
Directors of the Company, pursuant to which the Company’s securities may be issued to any employee, officer, director, consultant or advisor for services provided to the Company; provided, however, that in the case of any issuance to of
securities to any consultant or advisor of the Company, such securities are granted solely in consideration of the provision of bona fide services to the Company relating to the Company’s business or operations and not in connection with
services relating to a financing or similar activity. 
 (p) Successor Collateral Agent. The Company hereby covenants and
agrees to take all actions as promptly as practicable reasonably requested by either the holder of a majority of the outstanding principal amount of Notes or the Collateral Agent (or its successor), from time to time, to secure a successor
Collateral Agent satisfactory to the Buyers, in their sole discretion, including, without limitation, by paying all fees of such successor Collateral Agent, by having the Company agree to indemnify any successor Collateral Agent and by the Company
executing a collateral agency agreement or similar agreement and/or any amendment to the Security Documents reasonably requested or required by the successor Collateral Agent. 
 (q) Lock-Up. The Company shall not amend or waive any provision of any of the Lock-Up Agreements except to extend the term of the lock-up period and shall enforce the provisions of each Lock-Up
Agreement in accordance with its terms. If any officer or director that is a party to a Lock-Up Agreement breaches any provision of a Lock-Up Agreement, the Company shall promptly use its best efforts to seek specific performance of the terms of
such Lock-Up Agreement. 
 (r) Closing Documents. On or prior to fourteen (14) calendar days after the Closing Date,
the Company agrees to deliver, or cause to be delivered, to each Buyer and Schulte Roth & Zabel LLP executed copies of the Transaction Documents, Securities and other document required to be delivered to any party pursuant to Section 7
hereof or otherwise. 

  
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 (s) Bankruptcy
Court Filing and Confirmation. The Company shall use its reasonable best efforts to cause the Bankruptcy Court to enter an order in form and substance reasonably satisfactory to the Buyers confirming the Plan as soon as practicable. Without
limiting the generality of the foregoing, no later than five Business Days prior to the delivery of the draft confirmation order or any filing relating to this Agreement or the transactions contemplated thereby to the Bankruptcy Court, the Company
shall provide as copy of such draft confirmation order or other documents to the Buyers for their review and comment. 
 (t)
Bankruptcy Court Order. The Company shall not, and the Company shall not permit any of its Subsidiaries to, at any time, seek, consent to or suffer to exist any reversal, modification, amendment, stay or vacation of any order approving the
issuance of the Initial Notes and Initial Warrants pursuant to the terms of the Transaction Documents (the “Approval Order”), except for modifications and amendments agreed to by holders of at least two-thirds of the Initial Notes
purchased on the Closing Date without any restrictions or limitations. 
 (u) Existence of Claims. The Company shall not,
and the Company shall not permit any of its Subsidiaries to, at any time, suffer to exist a priority for any administrative expense or unsecured claim against the Company, including, without limitation, any administrative expenses of the kind
specified in, or arising or ordered under, Sections 105, 326, 328, 330, 331, 503(b), 506(c), 507(a), 507(b), 546(c) 726 and 1114 of the Bankruptcy Code equal or superior to the priority of the holders of the Initial Notes in the Account. 

(v) Shares Freely Transferable. The Exchange Notes, the Exchange Warrants, the Exchange Conversion Shares and the Exchange Warrant
Shares upon their issuance in connection with the consummation of the Plan shall be freely transferable and eligible for sale without any restriction or limitation and without the need for registration under any applicable federal and state
securities laws pursuant to Section 1145 of the Bankruptcy Code. 
 (w) Market Activity. From and after the date
hereof and until 11:59 p.m. on December 21, 2010, each Buyer and its affiliates shall not, directly or indirectly, engage in any transactions involving “short sales” (as defined in Rule 200 of Regulation SHO under the 1933 Act) or any
transaction involving derivatives that would result in a “put equivalent position” (as defined in Rule 16a-1(h) under the 1934 Act), in each case with respect to the Common Stock; provided, however, that nothing shall prevent
any Buyer from taking any actions to use available shares to borrow in order to effect short sales or similar transactions in the future and nothing shall prevent or limit the sale of any Securities issued hereunder. Notwithstanding anything to the
contrary contained herein, the foregoing restrictions shall not apply to any Buyer that irrevocably elects to forego the adjustment to increase the Maximum Eligibility Number contemplated in the Series B Warrants. 

(x) Exchange Notes and Exchange Warrants. On the Effective Date, the Initial Notes and the Initial Warrants shall be mandatorily
exchangeable and exchanged for the Exchange Notes and the Exchange Warrants, respectively. On the Effective Date, the Company shall issue and deliver the Exchange Notes and the Exchange Warrants to the holders of the Initial Notes and Initial
Warrants. Within three (3) Trading Days following the delivery of the Exchange Notes and Exchange Warrants to each such holder, such holder shall deliver to the Company the Initial Notes and Initial Warrants held by such holder. Notwithstanding
anything 

  
 - 29 -

 
to the contrary contained in this Section, each Buyer’s obligation to exchange the Initial Notes and Initial Warrants for the Exchange Notes and the Exchange Warrants shall be subject to the
satisfaction, at or before the Effective Date, of each of the following conditions, provided that these conditions are for each Buyer’s sole benefit and may be waived by such Buyer at any time in its sole discretion by providing the Company
with prior written notice thereof: (i) such Buyer shall have received a legal opinion of Foley & Lardner LLP, the Company’s outside counsel, dated as of the Effective Date, in substantially the form of Exhibit E-1 attached
hereto, (ii) no Event of Default (as defined in the Notes) shall have occurred and no event shall have occurred that with the passage of time and the failure to cure would result in an Event of Default and (iii) the Company shall have
executed and delivered to such Buyer the Reaffirmation Agreement in substantially the form of Exhibit I attached hereto. 

(y) Account. Upon deposit of the aggregate Purchase Price in the Account at Closing, the Company, the Collateral Agent and the
Buyers each covenant and agree that, in accordance with the provisions of Section 4(j) hereof, the Collateral Agent shall have sole authority and discretion to deliver instructions to Account Bank with respect to distributions from the Account.
The Company, the Collateral Agent and the Buyers further agree that, so long as no Event of Default (as defined in the Notes) shall have occurred and no event shall have occurred that with the passage of time and the failure to cure would result in
an Event of Default, upon the Effective Date, the Collateral Agent shall give instructions to the Account Bank to release to the Company all cash in the Account other than cash in an amount equal to any unpaid fees or expenses contemplated pursuant
to Section 4(g) hereof, which may be withheld and paid to Empery or its counsel in satisfaction of any such fees or expense obligations. The Company hereby covenants and agrees to deliver to the Collateral Agent all information reasonably
requested by the Collateral Agent and/or to assist the Collateral Agent in delivering instructions to the Account Bank with respect to distributions from the Account or otherwise. 

5. REGISTER; TRANSFER AGENT INSTRUCTIONS. 
 (a) Register. The Company shall maintain at its principal executive offices (or such other office or agency of the Company as it may designate by notice to each holder of Securities), a register
for the Notes and the Warrants in which the Company shall record the name and address of the Person in whose name the Notes and the Warrants have been issued (including the name and address of each transferee), the principal amount of Notes held by
such Person, the number of Conversion Shares issuable upon conversion of the Notes and Warrant Shares issuable upon exercise of the Warrants held by such Person. The Company shall keep the register open and available at all times during business
hours for inspection of any Buyer or its legal representatives. 
 (b) Transfer Agent Instructions. The Company shall
issue irrevocable instructions to its transfer agent, and any subsequent transfer agent, to issue certificates or credit shares to the applicable balance accounts at the DTC, registered in the name of each Buyer or its respective nominee(s), for the
Conversion Shares, the Interest Shares and the Warrant Shares issued at the Closing or upon conversion of the Notes or exercise of the Warrants in such amounts as specified in such amounts as specified from time to time by each Buyer to the Company
upon conversion of the Notes or exercise of the Warrants in the form of Exhibit D attached hereto (the “Irrevocable Transfer Agent Instructions”). The Company warrants that

  
 - 30 -

 
no instruction other than the Irrevocable Transfer Agent Instructions referred to in this Section 5(b), and stop transfer instructions to give effect to Section 2(j) hereof, will be
given by the Company to its transfer agent, and that the Securities shall otherwise be freely transferable on the books and records of the Company as and to the extent provided in this Agreement and the other Transaction Documents. If a Buyer
effects a sale, assignment or transfer of the Securities in accordance with Section 2(j), the Company shall permit the transfer and shall promptly instruct its transfer agent to issue one or more certificates or credit shares to the applicable
balance accounts at DTC in such name and in such denominations as specified by such Buyer to effect such sale, transfer or assignment. In the event that Conversion Shares, the Interest Shares or Warrant Shares were issued pursuant to
Section 1145 of the Bankruptcy Code or such sale, assignment or transfer involves Conversion Shares or Warrant Shares sold, assigned or transferred pursuant to an effective registration statement or pursuant to Rule 144, the transfer agent
shall issue such Securities to the Buyer (or any transferee or assignee thereof), as the case may be, without any restrictive legend. The Company acknowledges that a breach by it of its obligations hereunder will cause irreparable harm to a Buyer.
Accordingly, the Company acknowledges that the remedy at law for a breach of its obligations under this Section 5(b) will be inadequate and agrees, in the event of a breach or threatened breach by the Company of the provisions of this
Section 5(b), that a Buyer shall be entitled, in addition to all other available remedies, to an order and/or injunction restraining any breach and requiring immediate issuance and transfer, without the necessity of showing economic loss and
without any bond or other security being required. 
 6. CONDITIONS TO THE COMPANY’S OBLIGATION TO SELL. 

The obligation of the Company hereunder to issue and sell the Initial Notes and the Initial Warrants to each Buyer at the Closing is
subject to the satisfaction, at or before the Closing Date, of each of the following conditions, provided that these conditions are for the Company’s sole benefit and may be waived by the Company at any time in its sole discretion by providing
each Buyer with prior written notice thereof: 
 (i) Such Buyer shall have executed each of the Transaction Documents to which
it is a party and delivered the same to the Company. 
 (ii) Such Buyer shall have delivered to the Company the Purchase Price
(less, in the case of Empery, the amounts withheld pursuant to Section 4(g)) for the Initial Notes and the Initial Warrants being purchased by such Buyer at the Closing by wire transfer of immediately available funds to the Account. 

(iii) The representations and warranties of such Buyer shall be true and correct as of the date when made and as of the Closing Date as
though made at that time (except for representations and warranties that speak as of a specific date which shall be true and correct as of such specified date), and such Buyer shall have performed, satisfied and complied in all material respects
with the covenants, agreements and conditions required by this Agreement to be performed, satisfied or complied with by such Buyer at or prior to the Closing Date. 

  
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 7. CONDITIONS TO
EACH BUYER’S OBLIGATION TO PURCHASE. 
 The obligation of each Buyer hereunder to purchase the Initial Notes and the
Initial Warrants at the Closing is subject to the satisfaction, at or before the Closing Date, of each of the following conditions, provided that these conditions are for each Buyer’s sole benefit and may be waived by such Buyer at any time in
its sole discretion by providing the Company with prior written notice thereof: 
 (i) The Company shall have duly executed and
delivered to such Buyer (A) each of the Transaction Documents, (B) the Initial Notes (allocated in such principal amounts as such Buyer shall request), being purchased by such Buyer at the Closing pursuant to this Agreement and
(C) the related Initial Warrants (allocated in such amounts as such Buyer shall request) being purchased by such Buyer at the Closing pursuant to this Agreement. 
 (ii) Such Buyer and the Placement Agent shall have received the opinion of Foley & Lardner LLP, the Company’s outside counsel, dated as of the Closing Date, in substantially the form of
Exhibit E-2 attached hereto. 
 (iii) The Company shall have delivered to such Buyer a copy of the Irrevocable
Transfer Agent Instructions, in the form of Exhibit D attached hereto, which instructions shall have been delivered to and acknowledged in writing by the Company’s transfer agent. 

(iv) The Company shall have delivered to such Buyer a certificate evidencing the formation and good standing of the Company in such
entity’s jurisdiction of formation issued by the Secretary of State (or comparable office) of such jurisdiction, as of a date within ten (10) days of the Closing Date. 

(v) The Company shall have delivered to such Buyer a certificate evidencing the Company’s qualification as a foreign corporation
and good standing issued by the Secretary of State (or comparable office) of each jurisdiction in which the Company conducts business, as of a date within ten (10) days of the Closing Date. 

(vi) The Company shall have delivered to such Buyer a certified copy of the Certificate of Incorporation as certified by the Secretary
of State (or comparable office) of the State of Delaware within ten (10) days of the Closing Date. 
 (vii) The Company
shall have delivered to such Buyer a certificate, executed by the Secretary of the Company and dated as of the Closing Date, as to (i) the resolutions consistent with Section 3(b) as adopted by the Company’s Board of Directors in a
form reasonably acceptable to such Buyer, (ii) the Certificate of Incorporation and (iii) the Bylaws, each as in effect at the Closing, in the form attached hereto as Exhibit F. 

(viii) The representations and warranties of the Company shall be true and correct as of the date when made and as of the Closing Date
as though made at that time (except for representations and warranties that speak as of a specific date which shall be true and correct as of such specified date) and the Company shall have performed, satisfied and complied in all material respects
with the covenants, agreements and conditions required by the 

  
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Transaction Documents to be performed, satisfied or complied with by the Company at or prior to the Closing Date. Such Buyer shall have received a certificate, executed by the Chief Executive
Officer of the Company, dated as of the Closing Date, to the foregoing effect and as to such other matters as may be reasonably requested by such Buyer in the form attached hereto as Exhibit G. 

(ix) The Company shall have delivered to such Buyer a letter from the Company’s transfer agent certifying the number of shares of
Common Stock outstanding as of a date within five days of the Closing Date. 
 (x) The Common Stock (I) shall be
designated for quotation or listed on the Principal Market and (II) shall not have been suspended, as of the Closing Date, by the SEC or the Principal Market from trading on the Principal Market nor shall suspension by the SEC or the Principal
Market have been threatened, as of the Closing Date, either (A) in writing by the SEC or the Principal Market or (B) by falling below the minimum listing maintenance requirements of the Principal Market. 

(xi) The Company shall have obtained all governmental, regulatory or third party consents and approvals, if any, necessary for the sale
of the Securities. 
 (xii) The Company shall have delivered to each Buyer a lock-up agreement in the form attached hereto as
Exhibit H executed and delivered by each of Accentia Biopharmaceuticals, Inc., Laurus Mutual Fund, Ltd, (In Liquidation) and its affiliate, Kathleen M. O’Donnell Trustee of the Francis E. O’Donnell Irrevocable Trust #1, Ronald E.
Osman, Francis E. O’Donnell, Jr., Dennis Ryll and John Sitillides (collectively, the “Lock-Up Agreements”). 
 (xiii) The Company shall have delivered to such Buyer a certified copy of the Final Approval Order (as defined in the Initial Notes), which shall approve the transactions contemplated by this Agreement
and the other Transaction Documents as well as the transactions contemplated hereby and thereby, including the issuance of the Securities, and no stay of such order shall have been entered or, if entered, shall remain in effect. The order shall
contain a finding that such Buyer is extending credit to the Company in good faith and a provision that such Buyer is entitled to all of the protections afforded by Section 364 of the Bankruptcy Code. In addition, such order shall contain a
finding to the effect that: (i) the Transaction Documents have been negotiated in good faith and at arm’s-length between the Company and the Buyers, (ii) the terms of the Notes and the Warrants to be issued pursuant to the Transaction
Documents are fair, reasonable, and reflect the Company’s exercise of sound and prudent business judgment consistent with its fiduciary duties, and (iii) that any loans and/or other financial accommodations made to the Company by the
Buyers pursuant to the Transaction Documents and such order shall (A) be deemed to have been extended by the Buyers in good faith, as that term is used in Section 364 of the Bankruptcy Code, and the Buyers shall be entitled to all of the
protections afforded thereby and (B) constitute reasonably equivalent value and fair consideration for the Notes and Warrants under the Bankruptcy Code and applicable non-bankruptcy law. 

  
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 (xiv) The Company
shall have delivered to such Buyer such other documents relating to the transactions contemplated by this Agreement as such Buyer or its counsel may reasonably request. 
 8. TERMINATION. In the event that the Closing shall not have occurred with respect to a Buyer on or before ten (10) Business Days from the date hereof due to the Company’s or such
Buyer’s failure to satisfy the conditions set forth in Sections 6 and 7 above (and the nonbreaching party’s failure to waive such unsatisfied condition(s)), the nonbreaching party shall have the option to terminate this Agreement with
respect to such breaching party at the close of business on such date without liability of any party to any other party; provided, however, that if this Agreement is terminated pursuant to this Section 8, the Company shall remain
obligated to reimburse the non-breaching Buyers for the expenses described in Section 4(g) above. 
 9.
MISCELLANEOUS. 
 (a) Governing Law; Jurisdiction; Jury Trial. On or prior to the Effective Date, all questions
concerning the construction, validity, enforcement and interpretation of this Agreement shall be governed by the internal laws of the State of Florida, without giving effect to any choice of law or conflict of law provision or rule (whether of the
State of Florida or any other jurisdictions) that would cause the application of the laws of any jurisdictions other than the State of Florida. From and after the Effective Date, all questions concerning the construction, validity, enforcement and
interpretation of this Agreement shall be governed by the internal laws of the State of New York, without giving effect to any choice of law or conflict of law provision or rule (whether of the State of New York or any other jurisdictions) that
would cause the application of the laws of any jurisdictions other than the State of New York. Each party hereby irrevocably submits to the exclusive jurisdiction of the Bankruptcy Court for the adjudication of any dispute hereunder or in connection
herewith or with any transaction contemplated hereby or discussed herein arising on or prior to the Effective Date, and hereby irrevocably waives, and agrees not to assert in any suit, action or proceeding, any claim that it is not personally
subject to the jurisdiction of any such court, that such suit, action or proceeding is brought in an inconvenient forum or that the venue of such suit, action or proceeding is improper, in each case for the period prior to the Effective Date. Each
party hereby irrevocably submits to the exclusive jurisdiction of the state and federal courts sitting in The City of New York, Borough of Manhattan, for the adjudication of any dispute hereunder or in connection herewith or with any transaction
contemplated hereby or discussed herein arising from and after the Effective Date, and hereby irrevocably waives, and agrees not to assert in any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of any such
court, that such suit, action or proceeding is brought in an inconvenient forum or that the venue of such suit, action or proceeding is improper, in each case for the period following the Effective Date. Each party hereby irrevocably waives personal
service of process and consents to process being served in any such suit, action or proceeding by mailing a copy thereof to such party at the address for such notices to it under this Agreement and agrees that such service shall constitute good and
sufficient service of process and notice thereof. EACH PARTY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION WITH OR ARISING OUT OF THIS
AGREEMENT OR ANY TRANSACTION CONTEMPLATED HEREBY. 

  
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 (b)
Counterparts. This Agreement may be executed in two or more identical counterparts, all of which shall be considered one and the same agreement and shall become effective when counterparts have been signed by each party and delivered to the
other party; provided that a facsimile signature shall be considered due execution and shall be binding upon the signatory thereto with the same force and effect as if the signature were an original, not a facsimile signature. 

(c) Headings. The headings of this Agreement are for convenience of reference and shall not form part of, or affect the
interpretation of, this Agreement. 
 (d) Severability. If any provision of this Agreement is prohibited by law or
otherwise determined to be invalid or unenforceable by a court of competent jurisdiction, the provision that would otherwise be prohibited, invalid or unenforceable shall be deemed amended to apply to the broadest extent that it would be valid and
enforceable, and the invalidity or unenforceability of such provision shall not affect the validity of the remaining provisions of this Agreement so long as this Agreement as so modified continues to express, without material change, the original
intentions of the parties as to the subject matter hereof and the prohibited nature, invalidity or unenforceability of the provision(s) in question does not substantially impair the respective expectations or reciprocal obligations of the parties or
the practical realization of the benefits that would otherwise be conferred upon the parties. The parties will endeavor in good faith negotiations to replace the prohibited, invalid or unenforceable provision(s) with a valid provision(s), the effect
of which comes as close as possible to that of the prohibited, invalid or unenforceable provision(s). 
 (e) Entire
Agreement; Amendments. This Agreement and the other Transaction Documents supersede all other prior oral or written agreements between the Buyers, the Company, their affiliates and Persons acting on their behalf with respect to the matters
discussed herein, and this Agreement, the other Transaction Documents and the instruments referenced herein and therein contain the entire understanding of the parties with respect to the matters covered herein and therein and, except as
specifically set forth herein or therein, neither the Company nor any Buyer makes any representation, warranty, covenant or undertaking with respect to such matters. No provision of this Agreement may be amended or waived other than by an instrument
in writing signed by the Company and holders of at least two-thirds of the Initial Notes purchased on the Closing Date, and any amendment to this Agreement made in accordance with this Section 9(e) shall be binding on all Buyers and
holders of Securities, as applicable. No consideration shall be offered or paid to any Person to amend or consent to a waiver or modification of any provision of this Agreement unless the same consideration also is offered to all of the parties to
this Agreement. The Company has not, directly or indirectly, made any agreements with any Buyers relating to the terms or conditions of the transactions contemplated by the Transaction Documents except as set forth in the Transaction Documents.
Without limiting the foregoing, the Company confirms that, except as set forth in this Agreement, no Buyer has made any commitment or promise or has any other obligation to provide any financing to the Company or otherwise. 

  
 - 35 -

  
 (f) Notices.
Any notices, consents, waivers or other communications required or permitted to be given under the terms of this Agreement must be in writing and will be deemed to have been delivered: (i) upon receipt, when delivered personally; (ii) upon
receipt, when sent by facsimile (provided confirmation of transmission is mechanically or electronically generated and kept on file by the sending party); or (iii) one Business Day after deposit with an overnight courier service, in each case
properly addressed to the party to receive the same. The addresses and facsimile numbers for such communications shall be: 

If to the Company: 
 Biovest International, Inc. 
 324 S. Hyde Park Ave., Suite 350 

Tampa, Florida 33606 
 Telephone:      (813) 864-2558 

Facsimile:        (813) 258-6912 

Attention:        President 

With a copy to: 
 Foley & Lardner LLP 
 100 N. Tampa Street, Suite 2700 

Tampa, Florida 33602 
 Telephone:      (813) 229-2300 

Facsimile:        (813) 221-4210 

Attention:        Curt P. Creely 

With a copy to: 
 Stichter Riedel Blain & Prosser P.A. 
 110 E. Madison Street, Suite 200

 Tampa, Florida 33602 
 Telephone:      (813) 229-0144 

Facsimile:        (813) 229-1811 

Attention:        Charles A. Postler 

If to the Transfer Agent: 
 StockTrans, Inc. 
 44 West Lancaster Ave. 

Ardmore, PA 19003 
 Telephone:      (610) 649-7300 

Facsimile:        (610) 649-7302 

Attention:        Operations 

  
 - 36 -

  
 If to a Buyer, to its address and
facsimile number set forth on the Schedule of Buyers, with copies to such Buyer’s representatives as set forth on the Schedule of Buyers, 
 with a copy (for informational purposes only) to: 
 Schulte Roth & Zabel
LLP 
 919 Third Avenue 
 New York, New York 10022 
 Telephone:      (212)
756-2000 
 Facsimile:        (212) 593-5955 

Attention:        Eleazer N. Klein, Esq. 

E-mail:            eleazer.klein@srz.com 

or to such other address and/or facsimile number and/or to the attention of such other Person as the recipient party has specified by written notice
given to each other party five (5) days prior to the effectiveness of such change. Written confirmation of receipt (A) given by the recipient of such notice, consent, waiver or other communication, (B) mechanically or electronically
generated by the sender’s facsimile machine containing the time, date, recipient facsimile number and an image of the first page of such transmission or (C) provided by an overnight courier service shall be rebuttable evidence of personal
service, receipt by facsimile or receipt from an overnight courier service in accordance with clause (i), (ii) or (iii) above, respectively. 
 (g) Successors and Assigns. This Agreement shall be binding upon and inure to the benefit of the parties and their respective successors and assigns, including any purchasers of the Notes or the
Warrants. The Company shall not assign this Agreement or any rights or obligations hereunder without the prior written consent of the holders of at least two-thirds of the aggregate principal amount of Initial Notes issued and issuable hereunder,
including by way of a Fundamental Transaction (unless the Company is in compliance with the applicable provisions governing Fundamental Transactions set forth in the Notes and the Warrants). A Buyer may assign some or all of its rights hereunder
without the consent of the Company, in which event such assignee shall be deemed to be a Buyer hereunder with respect to such assigned rights. 
 (h) No Third Party Beneficiaries. This Agreement is intended for the benefit of the parties hereto and their respective permitted successors and assigns, and is not for the benefit of, nor may any
provision hereof be enforced by, any other Person. 
 (i) Survival. Unless this Agreement is terminated under
Section 8, the representations and warranties of the Company and the Buyers contained in Sections 2 and 3, and the agreements and covenants set forth in Sections 4, 5 and 9 shall survive the Closing. Each Buyer shall be responsible only for its
own representations, warranties, agreements and covenants hereunder. 
 (j) Further Assurances. Each party shall do and
perform, or cause to be done and performed, all such further acts and things, and shall execute and deliver all such other agreements, certificates, instruments and documents, as any other party may reasonably request in order to carry out the
intent and accomplish the purposes of this Agreement and the consummation of the transactions contemplated hereby. 

  
 - 37 -

  
 (k)
Indemnification. (i) In consideration of each Buyer’s execution and delivery of the Transaction Documents and acquiring the Securities thereunder and in addition to all of the Company’s other obligations under the Transaction
Documents, the Company shall defend, protect, indemnify and hold harmless each Buyer and all of their stockholders, partners, members, officers, directors, employees and direct or indirect investors and any of the foregoing Persons’ agents or
other representatives (including, without limitation, those retained in connection with the transactions contemplated by this Agreement) (collectively, the “Indemnitees”) from and against any and all actions, causes of action,
suits, claims, losses, costs, penalties, fees, liabilities and damages, and expenses in connection therewith (irrespective of whether any such Indemnitee is a party to the action for which indemnification hereunder is sought), and including
reasonable attorneys’ fees and disbursements (the “Indemnified Liabilities”), incurred by any Indemnitee as a result of, or arising out of, or relating to (a) any misrepresentation or breach of any representation or
warranty made by the Company in the Transaction Documents or any other certificate, instrument or document contemplated hereby or thereby, (b) any breach of any covenant, agreement or obligation of the Company contained in the Transaction
Documents or any other certificate, instrument or document contemplated hereby or thereby or (c) any cause of action, suit or claim brought or made against such Indemnitee by a third party (including for these purposes a derivative action
brought on behalf of the Company) and arising out of or resulting from (i) the execution, delivery, performance or enforcement of the Transaction Documents or any other certificate, instrument or document contemplated hereby or thereby,
(ii) any transaction financed or to be financed in whole or in part, directly or indirectly, with the proceeds of the issuance of the Securities, or (iii) any disclosure made by such Buyer pursuant to Section 4(i) or (iv) the
status of such Buyer as an investor in the Company pursuant to the transactions contemplated by the Transaction Documents. To the extent that the foregoing undertaking by the Company may be unenforceable for any reason, the Company shall make the
maximum contribution to the payment and satisfaction of each of the Indemnified Liabilities which is permissible under applicable law. Notwithstanding the foregoing, the Company will not be liable to any Buyer or related Indemnitee under this
Agreement to the extent, but only to the extent, of any Indemnified Liability that is finally judicially determined to have been caused by (i) a breach by such Buyer of any of the representations, warranties, covenants or agreements made by
such Buyer in this Agreement or (ii) the gross negligence or willful misconduct of such Buyer. 
 (ii) Promptly after
receipt by an Indemnitee under this Section 9(k) of notice of the commencement of any action or proceeding (including any governmental action or proceeding) involving an Indemnified Liability, such Indemnitee shall, if a claim for
indemnification in respect thereof is to be made against any indemnifying party under this Section 9(k), deliver to the indemnifying party a written notice of the commencement thereof, and the indemnifying party shall have the right to
participate in, and, to the extent the indemnifying party so desires, jointly with any other indemnifying party similarly noticed, to assume control of the defense thereof with counsel mutually satisfactory to the indemnifying party and the
Indemnitee; provided, however, that an Indemnitee shall have the right to retain its own counsel with the fees and expenses of not more than one counsel for such Indemnitee to be paid by the indemnifying party, if, in the reasonable
opinion of the Indemnitee, the representation by such counsel of the Indemnitee and the indemnifying party would be inappropriate due to actual or potential differing interests between such Indemnitee and any other party represented by such counsel
in such proceeding. Legal counsel referred to in the 

  
 - 38 -

 
immediately preceding sentence shall be selected by the Buyers holding at least a two-thirds of the aggregate principal amount of Initial Notes issued and issuable hereunder. The Indemnitee shall
cooperate fully with the indemnifying party in connection with any negotiation or defense of any such action or Indemnified Liabilities by the indemnifying party and shall furnish to the indemnifying party all information reasonably available to the
Indemnitee that relates to such action or Indemnified Liabilities. The indemnifying party shall keep the Indemnitee fully apprised at all times as to the status of the defense or any settlement negotiations with respect thereto. No indemnifying
party shall be liable for any settlement of any action, claim or proceeding effected without its prior written consent, provided, however, that the indemnifying party shall not unreasonably withhold, delay or condition its consent. No
indemnifying party shall, without the prior written consent of the Indemnitee, which consent shall not be unreasonably withheld conditioned or delayed, consent to entry of any judgment or enter into any settlement or other compromise which
(i) does not include as an unconditional term thereof the giving by the claimant or plaintiff to such Indemnitee of a release from all liability in respect to such Indemnified Liabilities or litigation, (ii) requires any admission of
wrongdoing by such Indemnitee, or (iii) obligates or requires an Indemnitee to take, or refrain from taking, any action. Following indemnification as provided for hereunder, the indemnifying party shall be subrogated to all rights of the
Indemnitee with respect to all third parties, firms or corporations relating to the matter for which indemnification has been made. The failure to deliver written notice to the indemnifying party within a reasonable time of the commencement of any
such action shall not relieve such indemnifying party of any liability to the Indemnitee under this Section 9(k), except to the extent that the indemnifying party is prejudiced in its ability to defend such action. 

(iii) The indemnification required by this Section 9(k) shall be made by periodic payments of the amount thereof during the course
of the investigation or defense, as and when bills are received or Indemnified Liabilities are incurred. 
 (iv) The indemnity
agreements contained herein shall be in addition to (x) any cause of action or similar right of the Indemnitee against the indemnifying party or others, and (y) any liabilities the indemnifying party may be subject to pursuant to
applicable law. 
 (l) No Strict Construction. The language used in this Agreement will be deemed to be the language
chosen by the parties to express their mutual intent, and no rules of strict construction will be applied against any party. 

(m) Remedies. Each Buyer and each holder of the Securities shall have all rights and remedies set forth in the Transaction
Documents and all rights and remedies which such holders have been granted at any time under any other agreement or contract and all of the rights which such holders have under any law. Any Person having any rights under any provision of this
Agreement shall be entitled to enforce such rights specifically (without posting a bond or other security), to recover damages by reason of any breach of any provision of this Agreement and to exercise all other rights granted by law. Furthermore,
the Company recognizes that in the event that it fails to perform, observe, or discharge any or all of its obligations under the Transaction Documents, any remedy at law may prove to be inadequate relief to the Buyers. The Company therefore agrees
that the Buyers shall be entitled to seek temporary and permanent injunctive relief in any such case without the necessity of proving actual damages and without posting a bond or other security. 

  
 - 39 -

  
 (n) Rescission and
Withdrawal Right. Notwithstanding anything to the contrary contained in (and without limiting any similar provisions of) the Transaction Documents, whenever any Buyer exercises a right, election, demand or option under a Transaction Document and
the Company does not timely perform its related obligations within the periods therein provided, then such Buyer may rescind or withdraw, in its sole discretion from time to time upon written notice to the Company, any relevant notice, demand or
election in whole or in part without prejudice to its future actions and rights. 
 (o) Payment Set Aside. To the extent
that the Company makes a payment or payments to the Buyers hereunder or pursuant to any of the other Transaction Documents or the Buyers enforce or exercise their rights hereunder or thereunder, and such payment or payments or the proceeds of such
enforcement or exercise or any part thereof are subsequently invalidated, declared to be fraudulent or preferential, set aside, recovered from, disgorged by or are required to be refunded, repaid or otherwise restored to the Company, a trustee,
receiver or any other Person under any law (including, without limitation, any bankruptcy law, foreign, state or federal law, common law or equitable cause of action), then to the extent of any such restoration the obligation or part thereof
originally intended to be satisfied shall be revived and continued in full force and effect as if such payment had not been made or such enforcement or setoff had not occurred. 

(p) Independent Nature of Buyers’ Obligations and Rights. The obligations of each Buyer under any Transaction Document are
several and not joint with the obligations of any other Buyer, and no Buyer shall be responsible in any way for the performance of the obligations of any other Buyer under any Transaction Document. Nothing contained herein or in any other
Transaction Document, and no action taken by any Buyer pursuant hereto or thereto, shall be deemed to constitute the Buyers as, and the Company acknowledges that the Buyers do not so constitute, a partnership, an association, a joint venture or any
other kind of entity, or create a presumption that the Buyers are in any way acting in concert or as a group, and the Company shall not assert any such claim with respect to such obligations or the transactions contemplated by the Transaction
Documents and the Company acknowledges that the Buyers are not acting in concert or as a group with respect to such obligations or the transactions contemplated by the Transaction Documents. The Company acknowledges and each Buyer confirms that it
has independently participated in the negotiation of the transaction contemplated hereby with the advice of its own counsel and advisors. Each Buyer shall be entitled to independently protect and enforce its rights, including, without limitation,
the rights arising out of this Agreement or out of any other Transaction Documents, and it shall not be necessary for any other Buyer to be joined as an additional party in any proceeding for such purpose. 

(q) Currency. Unless otherwise indicated, all dollar amounts referred to in this Agreement are in United States Dollars. All
amounts owing under this Agreement or any Transaction Document shall be paid in US dollars. All amounts denominated in other currencies shall be converted in the US dollar equivalent amount in accordance with the Exchange Rate on the date of
calculation. “Exchange Rate” means, in relation to any amount of currency to be converted into US dollars pursuant to this Agreement, the US dollar exchange rate as published in The Wall Street Journal on the relevant date of
calculation. 
 [Signature Page Follows] 

  
 - 40 -

  
 IN WITNESS
WHEREOF, each Buyer and the Company have caused their respective signature page to this Securities Purchase Agreement to be duly executed as of the date first written above. 

 

			
	COMPANY:
	
	BIOVEST INTERNATIONAL, INC.
		
	 By:
	 	  

		 	 Name:

		 	 Title:

 [Signature Page to Securities Purchase Agreement] 

  
 IN WITNESS
WHEREOF, each Buyer and the Company have caused their respective signature page to this Securities Purchase Agreement to be duly executed as of the date first written above. 

 

			
	BUYERS:
	
	[BUYER]
		
	 By:
	 	  

		 	 Name:

		 	 Title:

 [Signature Page to Securities Purchase Agreement] 

  
 EXHIBITS

  

			
	 Exhibit A-1
	  	Form of Initial Notes
	 Exhibit A-2
	  	Form of Exchange Notes
	 Exhibit B-1
	  	Form of Initial Warrants
	 Exhibit B-2
	  	Form of Exchange Warrants
	 Exhibit C-1
	  	Form of Security Agreement
	 Exhibit C-2
	  	Form of Account Control Agreement
	 Exhibit D
	  	Form of Irrevocable Transfer Agent Instructions
	 Exhibit E-1
	  	Form of Opinion of Company Counsel - Effective Date
	 Exhibit E-2
	  	Form of Opinion of Company Counsel - Closing
	 Exhibit F
	  	Form of Secretary’s Certificate
	 Exhibit G
	  	Form of Officer’s Certificate
	 Exhibit H
	  	Form of Lock-Up Agreement
	 Exhibit I
	  	Form of Reaffirmation Agreement

SCHEDULES 
  

			
	 Schedule 3(a)
	  	Subsidiaries
	 Schedule 3(k)
	  	SEC Documents
	 Schedule 3(l)
	  	Absence of Certain Changes
	 Schedule 3(n)
	  	Regulatory Permits
	 Schedule 3(p)
	  	Transactions with Affiliates
	 Schedule 3(r)
	  	Equity Capitalization
	 Schedule 3(r)(ii)
	  	Pro Forma Equity Capitalization
	 Schedule 3(s)(i)
	  	Indebtedness and Other Contracts
	 Schedule 3(s)(ii)
	  	Pro Forma Indebtedness
	 Schedule 3(t)
	  	Absence of Litigation
	 Schedule 3(v)
	  	Employee Relations
	 Schedule 3(x)
	  	Intellectual Property Rights

 Schedules (Omitted) 

  
 Exhibit A-1 

[FORM OF DEBTOR IN POSSESSION SECURED CONVERTIBLE NOTE] 
 NEITHER THE ISSUANCE AND SALE OF THE SECURITIES REPRESENTED BY THIS NOTE NOR THE SECURITIES INTO WHICH THIS NOTE IS CONVERTIBLE HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR
APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR
(B) AN OPINION OF COUNSEL, IN A GENERALLY ACCEPTABLE FORM, THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT OR (II) UNLESS SOLD PURSUANT TO RULE 144 OR RULE 144A UNDER SAID ACT. NOTWITHSTANDING THE FOREGOING, THE SECURITIES MAY BE PLEDGED IN
CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT SECURED BY THE SECURITIES. ANY TRANSFEREE OF THIS NOTE SHOULD CAREFULLY REVIEW THE TERMS OF THIS NOTE, INCLUDING SECTIONS 3(c)(iv) AND 17(a) HEREOF. THE PRINCIPAL
AMOUNT REPRESENTED BY THIS NOTE AND, ACCORDINGLY, THE SECURITIES ISSUABLE UPON CONVERSION HEREOF MAY BE LESS THAN THE AMOUNTS SET FORTH ON THE FACE HEREOF PURSUANT TO SECTION 3(c)(iv) OF THIS NOTE. 

BIOVEST INTERNATIONAL, INC. 

DEBTOR IN POSSESSION SECURED CONVERTIBLE NOTE 
  

			
	Issuance Date: [                ], 2010	 	Original Principal Amount: U.S. $[                ]

FOR VALUE RECEIVED, Biovest International, Inc., a Delaware corporation (the “Company”), and debtor in
possession, hereby promises to pay to [BUYER] or registered assigns (the “Holder”) the amount set out above as the Original Principal Amount (as reduced pursuant to the terms hereof pursuant to redemption, conversion or otherwise,
the “Principal”) when due, whether upon the Maturity Date (as defined below), acceleration, redemption, conversion or otherwise (in each case in accordance with the terms hereof) and to pay interest (“Interest”) on
any outstanding Principal at the Interest Rate from the date identified above as the Issuance Date (the “Issuance Date”) until the same becomes due and payable, whether upon an Interest Date (as defined below), the Maturity Date,
acceleration, conversion, redemption or otherwise (in each case in accordance with the terms hereof). This Debtor in Possession Secured Convertible Note (including all Debtor in Possession Secured Convertible Notes issued in exchange, transfer or
replacement hereof, this “Note”) is one of an issue of Debtor in Possession Secured Convertible Notes (collectively, the “Notes” and such other Debtor in Possession Secured Convertible Notes, the “Other
Notes”) issued on the Closing Date pursuant to the Securities Purchase Agreement (as defined below). Certain capitalized terms used herein are defined in Section 30. 

  
 (1) PAYMENTS OF
PRINCIPAL. On the Maturity Date, the Company shall pay to the Holder an amount in cash representing all outstanding Principal and accrued and unpaid Interest. The “Maturity Date” shall be December 15, 2010, as may be
extended at the option of the Holder (i) in the event that, and for so long as, an Event of Default (as defined in Section 4(a)) shall have occurred and be continuing on the Maturity Date (as may be extended pursuant to this
Section 1) or any event shall have occurred and be continuing on the Maturity Date (as may be extended pursuant to this Section 1) that with the passage of time and the failure to cure would result in an Event of Default and
(ii) through the date that is ten (10) Business Days after the consummation of a Change of Control in the event that a Change of Control is publicly announced or a Change of Control Notice (as defined in Section 5(b)) is delivered
prior to the Maturity Date. Other than as specifically permitted by this Note, the Company may not prepay any portion of the outstanding Principal and accrued and unpaid Interest. 

(2) INTEREST; INTEREST RATE. (a) Interest on this Note shall commence accruing on the Issuance Date and shall be computed on
the basis of a 360-day year and twelve 30-day months and shall be payable in arrears on the first calendar day of each succeeding month after the Issuance Date (each, an “Interest Date”) with the first Interest Date being
December 1, 2010. Interest shall be payable on each Interest Date, to the record holder of this Note on the applicable Interest Date, in shares of Common Stock (“Interest Shares”) so long as there has been no Equity Conditions
Failure; provided however, that the Company may, at its option following notice to the Holder, pay Interest on any Interest Date in cash (“Cash Interest”) or in a combination of Cash Interest and Interest Shares. The Company shall
deliver a written notice to each holder of the Notes on or prior to the twenty-fifth (25th) Trading Day prior to the applicable Interest Date (the date such notice is delivered to all of the holders of Notes, the “Interest Notice
Date”) which notice (i) either (A) confirms that Interest to be paid on such Interest Date shall be paid entirely in Interest Shares or (B) elects to pay Interest as Cash Interest or a combination of Cash Interest and
Interest Shares and specifies the amount of Interest that shall be paid as Cash Interest and the amount of Interest, if any, that shall be paid in Interest Shares and (ii) certifies that the Equity Conditions are satisfied as of such Interest
Notice Date; provided that the Company must simultaneously take the same action in the same proportion with respect to the Other Notes. If the Equity Conditions are not satisfied as of the Interest Notice Date, then unless the Company has elected to
pay such Interest as Cash Interest, the Interest Notice shall indicate that unless the Holder waives the Equity Conditions, the Interest shall be paid as Cash Interest. If the Equity Conditions were satisfied as of the Interest Notice Date but the
Equity Conditions are no longer satisfied at any time prior to the Interest Date, the Company shall provide the Holder a subsequent notice to that effect indicating that unless the Holder waives the Equity Conditions, the Interest shall be paid as
Cash Interest. Interest to be paid on an Interest Date in Interest Shares shall be paid in a number of fully paid and nonassessable shares (rounded up to the nearest whole share in accordance with Section 3(a)) of Common Stock equal to the
quotient of (1) the amount of Interest payable on such Interest Date less any Cash Interest paid on such Interest Date and (2) the Interest Conversion Price in effect on the applicable Interest Date. 

(b) When any Interest Shares are to be paid on an Interest Date, the Company shall (i) (A) provided that the Company’s
transfer agent (the “Transfer Agent”) is participating in the Depository Trust Company (“DTC”) Fast Automated Securities Transfer Program, credit such aggregate number of Interest Shares to which the Holder shall be
entitled to the Holder’s or its designee’s balance account with DTC through its Deposit Withdrawal Agent 

  
 - 2 -

 
Commission system, or (B) if the Transfer Agent is not participating in the DTC Fast Automated Securities Transfer Program, issue and deliver on the applicable Interest Date, to the address
set forth in the register maintained by the Company for such purpose pursuant to the Securities Purchase Agreement or to such address as specified by the Holder in writing to the Company at least two (2) Business Days prior to the applicable
Interest Date, a certificate, registered in the name of the Holder or its designee, for the number of Interest Shares to which the Holder shall be entitled and (ii) with respect to each Interest Date, pay to the Holder, in cash by wire transfer
of immediately available funds, the amount of any Cash Interest. 
 (c) From and after the occurrence and during the
continuance of an Event of Default, the Interest Rate shall be increased to fifteen percent (15.0%) per annum. In the event that such Event of Default is subsequently cured, the adjustment referred to in the preceding sentence shall cease to be
effective as of the date of such cure; provided that the Interest as calculated and unpaid at such increased rate during the continuance of such Event of Default shall continue to apply to the extent relating to the days after the occurrence of such
Event of Default through and including the date of cure of such Event of Default. The Company shall pay any and all transfer, stamp, and similar taxes that may be payable with respect to the issuance and delivery of Interest Shares. 

(3) CONVERSION OF NOTES. This Note shall be convertible into shares of the Company’s common stock, par value $0.01 per share
(the “Common Stock”), on the terms and conditions set forth in this Section 3. 
 (a) Conversion
Right. Subject to the provisions of Section 3(d), at any time or times on or after the date hereof, the Holder shall be entitled to convert any portion of the outstanding and unpaid Conversion Amount (as defined below) into fully paid and
nonassessable shares of Common Stock in accordance with Section 3(c), at the Conversion Rate (as defined below). The Company shall not issue any fraction of a share of Common Stock upon any conversion. If the issuance would result in the
issuance of a fraction of a share of Common Stock, the Company shall round such fraction of a share of Common Stock up to the nearest whole share. The Company shall pay any and all transfer, stamp and similar taxes that may be payable with respect
to the issuance and delivery of Common Stock upon conversion of any Conversion Amount. 
 (b) Conversion Rate. The
number of shares of Common Stock issuable upon conversion of any Conversion Amount pursuant to Section 3(a) shall be determined by dividing (x) such Conversion Amount by (y) the Conversion Price (the “Conversion
Rate”). 
 (i) “Conversion Amount” means the sum of (A) the portion of the
Principal to be converted, redeemed or otherwise with respect to which this determination is being made, and (B) accrued and unpaid Interest with respect to such Principal. 

(ii) “Conversion Price” means, as of any Conversion Date (as defined below) or other date of
determination, $0.91, subject to adjustment as provided herein. 

  
 - 3 -

  
 (c) Mechanics of
Conversion. 
 (i) Optional Conversion. To convert any Conversion Amount into shares of Common Stock
on any date (a “Conversion Date”), the Holder shall (A) transmit by facsimile (or otherwise deliver), for receipt on or prior to 11:59 p.m., New York time, on such date, a copy of an executed notice of conversion in the form
attached hereto as Exhibit I (the “Conversion Notice”) to the Company and the Transfer Agent and (B) if required by Section 3(c)(iv), surrender this Note to a common carrier for delivery to the Company as soon as
practicable on or following such date (or an indemnification undertaking with respect to this Note in the case of its loss, theft or destruction). On or before the first (1st) Business Day following the date of receipt of a Conversion Notice,
the Company shall transmit by facsimile a confirmation of receipt of such Conversion Notice to the Holder and the Transfer Agent. On or before the third (3rd) Trading Day following the date of receipt of a Conversion Notice (the “Share
Delivery Date”), the Company shall (x) provided that the Transfer Agent is participating in the DTC Fast Automated Securities Transfer Program, credit such aggregate number of shares of Common Stock to which the Holder shall be
entitled to the Holder’s or its designee’s balance account with DTC through its Deposit Withdrawal Agent Commission system or (y) if the Transfer Agent is not participating in the DTC Fast Automated Securities Transfer Program, issue
and deliver to the address as specified in the Conversion Notice, a certificate, registered in the name of the Holder or its designee, for the number of shares of Common Stock to which the Holder shall be entitled. If this Note is physically
surrendered for conversion as required by Section 3(c)(iv) and the outstanding Principal of this Note is greater than the Principal portion of the Conversion Amount being converted, then the Company shall, as soon as practicable and in no event
later than five (5) Business Days after receipt of this Note and at its own expense, issue and deliver to the holder a new Note (in accordance with Section 17(d)) representing the outstanding Principal not converted. The Person or Persons
entitled to receive the shares of Common Stock issuable upon a conversion of this Note shall be treated for all purposes as the record holder or holders of such shares of Common Stock on the Conversion Date. 

(ii) Make-Whole Amount Upon Conversion. In addition to the foregoing, on each Share Delivery Date, any applicable
Make-Whole Amount on such Conversion Amount (the “Make-Whole Conversion Amount”) shall be paid to the Holder in shares of Common Stock (“Make-Whole Shares”) so long as there has been no Equity Conditions Failure;
provided however, that the Company may, at its option following notice to the Holder, pay such Make-Whole Conversion Amount in cash (“Make-Whole Cash”) or in a combination of Make-Whole Shares and Make-Whole Cash. In the event that
the Company desires to elect to pay any portion of its Make-Whole Conversion Amount as a Make-Whole Cash, then the Company shall deliver a written notice (“Make-Whole Notice”) to the Holder no later than one (1) Trading Day
following the receipt of the Conversion Notice by the Company (the “Make-Whole Notice Date”), which notice elects to pay the Make-Whole Conversion Amount in the form of a Make-Whole Cash or a combination of a Make-Whole Cash and
Make-Whole Shares and specifies the amount of the Make-Whole Conversion Amount that shall be paid as a Make-Whole Cash and the amount of Make-Whole Conversion Amount, if any, that shall be paid in Make-Whole Shares. If the Equity Conditions are not
satisfied as of the 

  
 - 4 -

 
Conversion Date, then unless the Company has elected to pay such Make-Whole Conversion Amount as a Make-Whole Cash, the Make-Whole Notice shall indicate that unless the Holder waives the Equity
Conditions, the Make-Whole Conversion Amount shall be paid in the form of a Make-Whole Cash. If the Equity Conditions were satisfied as of the Conversion Date but the Equity Conditions are no longer satisfied at any time prior to the Share Delivery
Date, the Company shall provide the Holder a subsequent notice to that effect indicating that unless the Holder waives the Equity Conditions, the Make-Whole Conversion Amount shall be paid in the form of a Make-Whole Cash. The Make-Whole Conversion
Amount to be paid on such Share Delivery Date in Make-Whole Shares shall be paid in a number of fully paid and nonassessable shares of Common Stock (rounded to the nearest whole share in accordance with Section 3(a)) equal to the quotient of
(1) the Make-Whole Conversion Amount payable on the applicable Conversion Date less any Make-Whole Cash paid and (2) the Interest Conversion Price in effect on the applicable Conversion Date. Delivery of the Make-Whole Shares shall be made
in the manner set forth in Section 2(b)(i) of this Note replacing the terms “Interest Shares” with “Make-Whole Shares” and “Interest Date” with “Share Delivery Date.” 

(iii) Company’s Failure to Timely Convert. If the Company shall fail to issue a certificate to the Holder or
credit the Holder’s balance account with DTC, as applicable, for the number of shares of Common Stock to which the Holder is entitled upon conversion of any Conversion Amount on or prior to the date which is three (3) Trading Days after
the Conversion Date (a “Conversion Failure”), then (A) the Company shall pay damages to the Holder for each Trading Day of such Conversion Failure in an amount equal to 1.5% of the product of (1) the sum of the number of
shares of Common Stock not issued to the Holder on or prior to the Share Delivery Date and to which the Holder is entitled, and (2) the Closing Sale Price of the Common Stock on the Share Delivery Date and (B) the Holder, upon written
notice to the Company, may void its Conversion Notice with respect to, and retain or have returned, as the case may be, any portion of this Note that has not been converted pursuant to such Conversion Notice; provided that the voiding of a
Conversion Notice shall not affect the Company’s obligations to make any payments which have accrued prior to the date of such notice pursuant to this Section 3(c)(iii) or otherwise. In addition to the foregoing, if within three
(3) Trading Days after the Company’s receipt of the facsimile copy of a Conversion Notice, the Company shall fail to issue and deliver a certificate to the Holder or credit the Holder’s balance account with DTC for the number of
shares of Common Stock to which the Holder is entitled upon such holder’s conversion of any Conversion Amount, and if on or after such Trading Day the Holder purchases (in an open market transaction or otherwise) Common Stock to deliver in
satisfaction of a sale by the Holder of Common Stock issuable upon such conversion that the Holder anticipated receiving from the Company (a “Buy-In”), then the Company shall, within five (5) Trading Days after the
Holder’s request and in the Holder’s discretion, either (i) pay cash to the Holder in an amount equal to the Holder’s total purchase price (including brokerage commissions and other out-of-pocket expenses, if any) for the shares
of Common Stock so purchased (the “Buy-In Price”), at which point the Company’s obligation to deliver such certificate (and to issue such Common Stock) shall terminate, or (ii) promptly honor its obligation to deliver to
the Holder a certificate or certificates representing such Common Stock and pay cash to the Holder in an amount equal to the excess (if any) of the Buy-In Price over the product of (A) such number of shares of Common Stock, times (B) the
Closing Bid Price on the Conversion Date. 

  
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 (iv)
Registration; Book-Entry. The Company shall maintain a register (the “Register”) for the recordation of the names and addresses of the holders of each Note and the principal amount of the Notes held by such holders (the
“Registered Notes”). The entries in the Register shall be conclusive and binding for all purposes absent manifest error. The Company and the holders of the Notes shall treat each Person whose name is recorded in the Register as the
owner of a Note for all purposes, including, without limitation, the right to receive payments of Principal and Interest, if any, hereunder, notwithstanding notice to the contrary. A Registered Note may be assigned or sold in whole or in part only
by registration of such assignment or sale on the Register. Upon its receipt of a request to assign or sell all or part of any Registered Note by a Holder, the Company shall record the information contained therein in the Register and issue one or
more new Registered Notes in the same aggregate principal amount as the principal amount of the surrendered Registered Note to the designated assignee or transferee pursuant to Section 17. Notwithstanding anything to the contrary in this
Section 3(c)(iv), a Holder may assign any Note or any portion thereof to an Affiliate of such Holder or a Related Fund of such Holder without delivering a request to assign or sell such Note to the Company and the recordation of such assignment
or sale in the Register (a “Related Party Assignment”); provided, that (x) the Company may continue to deal solely with such assigning or selling Holder unless and until such Holder has delivered a request to assign or
sell such Note or portion thereof to the Company for recordation in the Register; (y) the failure of such assigning or selling Holder to deliver a request to assign or sell such Note or portion thereof to the Company shall not affect the
legality, validity, or binding effect of such assignment or sale; and (z) such assigning or selling Holder shall, acting solely for this purpose as a non-fiduciary agent of the Company, maintain a register (the “Related Party
Register”) comparable to the Register on behalf of the Company, and any such assignment or sale shall be effective upon recordation of such assignment or sale in the Related Party Register. Notwithstanding anything to the contrary set forth
herein, upon conversion of any portion of this Note in accordance with the terms hereof, the Holder shall not be required to physically surrender this Note to the Company unless (A) the full Conversion Amount represented by this Note is being
converted or (B) the Holder has provided the Company with prior written notice (which notice may be included in a Conversion Notice) requesting physical surrender and reissue of this Note. The Holder and the Company shall maintain records
showing the Principal and Interest converted and the dates of such conversions or shall use such other method, reasonably satisfactory to the Holder and the Company, so as not to require physical surrender of this Note upon conversion. 

(v) Pro Rata Conversion; Disputes. In the event that the Company receives a Conversion Notice from more than one
holder of Notes for the same Conversion Date and the Company can convert some, but not all, of such portions of the Notes submitted for conversion, the Company, subject to Section 3(d), shall convert from each holder of Notes electing to have
Notes converted on such date a pro rata amount of such holder’s portion of its Notes submitted for conversion based on the principal amount of Notes submitted for conversion on such date by such holder relative to the aggregate

  
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principal amount of all Notes submitted for conversion on such date. In the event of a dispute as to the number of shares of Common Stock issuable to the Holder in connection with a conversion of
this Note, the Company shall issue to the Holder the number of shares of Common Stock not in dispute and resolve such dispute in accordance with Section 22. 

(d) Limitations on Conversions; Beneficial Ownership. The Company shall not effect any conversion of this
Note, and the Holder of this Note shall not have the right to convert any portion of this Note pursuant to Section 3(a), to the extent that after giving effect to such conversion, the Holder (together with the Holder’s Affiliates) would
beneficially own in excess of 4.99% (the “Maximum Percentage”) of the number of shares of Common Stock outstanding immediately after giving effect to such conversion. For purposes of the foregoing sentence, the number of shares of
Common Stock beneficially owned by the Holder and its Affiliates shall include the number of shares of Common Stock issuable upon conversion of this Note with respect to which the determination of such sentence is being made, but shall exclude the
number of shares of Common Stock which would be issuable upon (A) conversion of the remaining, nonconverted portion of this Note beneficially owned by the Holder or any of its Affiliates and (B) exercise or conversion of the unexercised or
nonconverted portion of any other securities of the Company (including, without limitation, any Other Notes or warrants) subject to a limitation on conversion or exercise analogous to the limitation contained herein beneficially owned by the Holder
or any of its Affiliates. Except as set forth in the preceding sentence, for purposes of this Section 3(d), beneficial ownership shall be calculated in accordance with Section 13(d) of the Securities Exchange Act of 1934, as amended (the
“Exchange Act”). For purposes of this Section 3(d), in determining the number of outstanding shares of Common Stock, the Holder may rely on the number of outstanding shares of Common Stock as reflected in (x) the
Company’s most recent Form 10-K, Form 10-Q or Form 8-K, as the case may be, (y) a more recent public announcement by the Company or (z) any other notice by the Company or the Transfer Agent setting forth the number of shares of Common
Stock outstanding. For any reason at any time, upon the written or oral request of the Holder, the Company shall within one (1) Business Day confirm orally and in writing to the Holder the number of shares of Common Stock then outstanding. In
any case, the number of outstanding shares of Common Stock shall be determined after giving effect to the conversion or exercise of securities of the Company, including this Note, by the Holder or its Affiliates since the date as of which such
number of outstanding shares of Common Stock was reported. By written notice to the Company, the Holder may increase or decrease the Maximum Percentage to any other percentage not in excess of 9.99% specified in such notice; provided that
(i) any such increase will not be effective until the sixty-first (61st) day after such notice is delivered to the Company, and (ii) any such increase or decrease will apply only to the Holder and not to any other holder of Notes. The provisions of this paragraph
shall be construed and implemented in a manner otherwise than in strict conformity with the terms of this Section 3(d) to correct this paragraph (or any portion hereof) which may be defective or inconsistent with the intended beneficial
ownership limitation herein contained or to make changes or supplements necessary or desirable to properly give effect to such limitation. 

  
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 (4) RIGHTS UPON
EVENT OF DEFAULT. 
 (a) Event of Default. Each of the following events shall constitute an “Event of
Default”: 
 (i) the Company’s failure to pay to the Holder any amount of Principal (including,
without limitation, any redemption payments), Interest or other amounts when and as due under this Note or any other Transaction Document (as defined in the Securities Purchase Agreement) or any other agreement, document, certificate or other
instrument delivered in connection with the transactions contemplated hereby and thereby to which the Holder is a party, except (x) the failure to pay Interest when and as due shall be an Event of Default only if such failure continues for a
period of at least five (5) Business Days, and (y) the failure to pay any amount other than Principal and Interest when and as due shall be an Event of Default only if such failure continues for a period of at least five (5) Business
Days after the Company knew or should reasonably have known after due inquiry of the obligation to pay any such amount; 
 (ii) any default under or acceleration prior to maturity of any Indebtedness of the Company in excess of $250,000, other than with respect to any Other Notes or any redemption of such Indebtedness prior
to its maturity with respect to any default; 
 (iii) a final judgment or judgments for the payment of money
aggregating in excess of $250,000 are rendered against the Company and which judgments are not, within sixty (60) days after the entry thereof, bonded, discharged or stayed pending appeal, or are not discharged within sixty (60) days after
the expiration of such stay; provided, however, that any judgment which is covered by insurance or an indemnity from a creditworthy party shall not be included in calculating the $250,000 amount set forth above so long as the Company provides the
Holder a written statement from such insurer or indemnity provider (which written statement shall be reasonably satisfactory to the Holder) to the effect that such judgment is covered by insurance or an indemnity and the Company will receive the
proceeds of such insurance or indemnity within thirty (30) days of the issuance of such judgment; provided that no payments made on account of allowed claims pursuant to the terms of the Company’s Plan of Reorganization and confirmation
order entered by the Bankruptcy Court relating to the Company’s Chapter 11 Case shall constitute an Event of Default; 
 (iv) the Company breaches any representation, warranty, covenant or other term or condition of any Transaction Document, except, in the case of a breach of a covenant which is curable, only if such breach
continues for a period of at least ten (10) consecutive Business Days; 
 (v) any breach or failure in any
respect to comply with Section 14 of this Note; 
 (vi) the aggregate number of shares of Common Stock, on
the date of the effectiveness of the Company’s Plan of Reorganization with respect to the Company’s Chapter 11 Case (“Chapter 11 Effectiveness”) after giving effect to the Chapter 11 Effectiveness, (A) issued or
issuable shall, excluding the shares of Common Stock issued or issuable pursuant to the conversion or exercise of the Notes and Warrants, respectively, exceed 44,000,000 shares of Common Stock or (B) issued or issuable that are both
(1) not subject to Lock-Up Agreements (as defined in the Securities Purchase 

  
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Agreement) and (2) issuable within ninety (90) days of the Chapter 11 Effectiveness, shall, excluding the shares of Common Stock issued or issuable pursuant to the conversion or
exercise of the Notes and Warrants, respectively, exceed 2,600,000 shares of Common Stock; 
 (vii) the
aggregate amount of Indebtedness of the Company outstanding on the date of Chapter 11 Effectiveness after giving effect to the Chapter 11 Effectiveness (other than the Notes) shall exceed the amount of Indebtedness set forth on the chart located at
the end of Schedule 3(s)(ii) of the Securities Purchase Agreement; 
 (viii) the occurrence of any of the
following in the Company’s Chapter 11 Case prior to the Effective Date: 
 (1) an interim order approving
the issuance of the Notes and Warrants pursuant to the terms of the Transaction Documents (the “Approval Order”) has not been entered on the docket for the Company’s Chapter 11 Case by October 13, 2010; and a final order
approving the issuance of the Notes and Warrants pursuant to the Transaction Documents (the “Final Approval Order”) has not been entered on the docket for the Company’s Chapter 11 Case by October 29, 2010; and such Final
Approval Order shall not have become final and non-appealable by November 12, 2010; 
 (2) the bringing of
a motion or taking of any other action by the Company to obtain additional financing under Section 364(c) or (d) of the Bankruptcy Code not otherwise permitted pursuant to the Transaction Documents; provided, however, that the Company may
continue to obtain financing from Corps Real LLC consistent with orders already entered by the Bankruptcy Court in the Chapter 11 Case; 
 (3) the prosecution of any plan of reorganization or any direct or indirect amendment to such plan by the Company that does not provide for the issuance of the Common Stock to be delivered upon conversion
of the Notes and exercise of the Warrants; 
 (4) the entry of an order staying, reversing or vacating any of
the Transaction Documents or the Approval Order, without the written consent of the Required Holders; 
 (5) the
entry of an order amending, supplementing, or modifying any of the Transaction Documents or the Approval Order, without the written consent of the Required Holders or the filing of a motion for reconsideration by the Company with respect to the
Approval Order; 
 (6) the statutory committee of unsecured creditors of the Company or any other party or
entity shall prevail on a motion, pleading, complaint or action against any holder of Notes or otherwise prevail on an objection to any such holder’s claims or prevail on any similar pleading which seeks to affect any such holder’s claims;

  
 - 9 -

  
 (7)
the appointment of an interim or permanent trustee in the Company’s Chapter 11 Case or the appointment of a receiver or an examiner with expanded powers beyond those set forth under Sections 1106(a)(3) and (4) of the Bankruptcy Code to
operate or manage the financial affairs, the business, or reorganization of the Company; 
 (8) the dismissal of
the Company’s Chapter 11 Case, or the conversion of such case from one under Chapter 11 to one under Chapter 7 of the Bankruptcy Code, or the Company shall file a motion or other pleading seeking such conversion or dismissal of its Chapter 11
Case under Section 1112 of the Bankruptcy Code or otherwise; 
 (9) the entry of an order in the
Company’s Chapter 11 Case avoiding or requiring repayment of any portion of the payments made on account of the Principal and Interest owing under the Notes; 

(10) the failure of the Company to perform any of its obligations under the Approval Order; 

(11) the entry of an order in the Company’s Chapter 11 Case granting any other superpriority administrative claim
equal or superior to that granted to the Holders of Notes with respect to the Collateral, without the written consent of the Required Holders; 
 (12) the failure of the confirmation order approving the Company’s Plan of Reorganization to be in form and substance reasonably satisfactory to the Required Holders, including, without limitation,
providing for the issuance of Common Stock upon conversion of the Notes and exercise of the Warrants as being freely transferable and eligible for sale without any restriction or limitation and without the need for registration under any applicable
federal or state securities laws, pursuant to Section 1145 of the Bankruptcy Code or otherwise; or 
 (13)
the Bankruptcy Court order confirming the Company’s Plan of Reorganization shall not have become a final order on or before November 15, 2010; provided such date shall be extended to the extent the delay is due to extensions granted or
caused by the Bankruptcy Court (other than extensions requested by the Company); provided, further, that the parties may agree in writing to extend the November 15, 2010 deadline, or 

(ix) any material provision of any Security Document (as defined in the Securities Purchase Agreement) shall at any time
for any reason (other than pursuant to the express terms thereof) cease to be valid and binding on or enforceable against the Company, or the validity or enforceability thereof shall be contested by any party thereto, or a proceeding shall be
commenced by the Company or any governmental authority having jurisdiction over any of them, seeking to establish the invalidity or unenforceability thereof, or the Company shall deny in writing that it has any liability or obligation purported to
be created under any Security Document; 

  
 - 10 -

  
 (x)
any Security Document, after delivery thereof pursuant hereto, shall for any reason fail or cease to create a valid and perfected and, except to the extent permitted by the terms hereof or thereof, first priority Lien in favor of the Collateral
Agent (as defined in the Securities Purchase Agreement) for the benefit of the holders of the Notes on any Collateral; or 
 (xi) any Event of Default (as defined in the Other Notes) occurs with respect to any Other Notes. 
 (b) Redemption Right. Upon the occurrence of an Event of Default with respect to this Note or any Other Note, the Company shall within one (1) Business Day deliver written notice thereof via
facsimile and overnight courier (an “Event of Default Notice”) to the Holder. At any time after the earlier of the Holder’s receipt of an Event of Default Notice and the Holder becoming aware of an Event of Default, the Holder
may require the Company to redeem (an “Event of Default Redemption”) all or any portion of this Note by delivering written notice thereof (the “Event of Default Redemption Notice”) to the Company, which Event of
Default Redemption Notice shall indicate the portion of this Note the Holder is electing to redeem. Each portion of this Note subject to redemption by the Company pursuant to this Section 4(b) shall be redeemed by the Company in cash at a price
equal to 110% of the sum of (i) any Make-Whole Amount and (ii) the greater of (x) the Conversion Amount to be redeemed and (y) the product of (A) the Conversion Rate in effect at such time as the Holder delivers an Event of
Default Redemption Notice with respect to such Conversion Amount being redeemed and (B) the greatest Weighted Average Price of the Common Stock on any Trading Day during the period commencing on the date immediately preceding such Event of
Default and ending on the date the Holder delivers the Event of Default Redemption Notice (the “Event of Default Redemption Price”). Redemptions required by this Section 4(b) shall be made in accordance with the provisions of
Section 12. To the extent redemptions required by this Section 4(b) are deemed or determined by a court of competent jurisdiction to be prepayments of the Note by the Company, such redemptions shall be deemed to be voluntary prepayments.
The parties hereto agree that in the event of the Company’s redemption of any portion of the Note under this Section 4(b), the Holder’s damages would be uncertain and difficult to estimate because of the parties’ inability to
predict future interest rates and the uncertainty of the availability of a suitable substitute investment opportunity for the Holder. Accordingly, any Event of Default redemption premium due under this Section 4(b) is intended by the parties to
be, and shall be deemed, a reasonable estimate of the Holder’s actual loss of its investment opportunity and not as a penalty. 
 (5) RIGHTS UPON FUNDAMENTAL TRANSACTION AND CHANGE OF CONTROL. 
 (a)
Assumption. The Company shall not enter into or be party to a Fundamental Transaction unless (i) the Successor Entity assumes in writing all of the obligations of the Company under this Note and the other Transaction Documents in
accordance with the provisions of this Section 5(a) pursuant to written agreements in form and substance reasonably satisfactory to the Required Holders and approved by the Required Holders prior to such

  
 - 11 -

 
Fundamental Transaction, including agreements to deliver to each holder of Notes in exchange for such Notes a security of the Successor Entity evidenced by a written instrument substantially
similar in form and substance to the Notes, including, without limitation, having a principal amount and interest rate equal to the principal amounts and the interest rates of the Notes then outstanding held by such holder, having similar conversion
rights and having similar ranking and security to the Notes, and satisfactory to the Required Holders and (ii) the Successor Entity (including its Parent Entity) is a publicly traded corporation whose common stock is quoted on or listed for
trading on an Eligible Market. Upon the occurrence of any Fundamental Transaction, the Successor Entity shall succeed to, and be substituted for (so that from and after the date of such Fundamental Transaction, the provisions of this Note referring
to the “Company” shall refer instead to the Successor Entity), and may exercise every right and power of the Company and shall assume all of the obligations of the Company under this Note with the same effect as if such Successor Entity
had been named as the Company herein. Upon consummation of the Fundamental Transaction, the Successor Entity shall deliver to the Holder confirmation that there shall be issued upon conversion or redemption of this Note at any time after the
consummation of the Fundamental Transaction, in lieu of the shares of the Company’s Common Stock (or other securities, cash, assets or other property) issuable upon the conversion or redemption of the Notes prior to such Fundamental
Transaction, such shares of the publicly traded common stock (or their equivalent) of the Successor Entity (including its Parent Entity), as adjusted in accordance with the provisions of this Note. The provisions of this Section shall apply
similarly and equally to successive Fundamental Transactions and shall be applied without regard to any limitations on the conversion or redemption of this Note. 
 (b) Redemption Right. No sooner than fifteen (15) days nor later than ten (10) days prior to the consummation of a Change of Control, but not prior to the public announcement of such
Change of Control, the Company shall deliver written notice thereof via facsimile and overnight courier to the Holder (a “Change of Control Notice”). At any time during the period beginning after the Holder’s receipt of a
Change of Control Notice and ending twenty (20) Trading Days after the date of the consummation of such Change of Control, the Holder may require the Company to redeem (a “Change of Control Redemption”) all or any portion of
this Note by delivering written notice thereof (“Change of Control Redemption Notice”, and the date thereof, the “Change of Control Redemption Notice Date”) to the Company, which Change of Control Redemption Notice
shall indicate the Conversion Amount the Holder is electing to require the Company to redeem. The portion of this Note subject to redemption pursuant to this Section 5(b) shall be redeemed by the Company in cash at a price equal to 110% of the
sum of (i) any Make-Whole Amount and (ii) the greater of (x) the Conversion Amount to be redeemed and (y) the product of (A) the Conversion Rate in effect at such time as the Holder delivers a Change of Control Redemption
Notice with respect to such Conversion Amount being redeemed and (B) the greatest Weighted Average Price of the Common Stock during the period beginning on the date immediately preceding the earlier to occur of (1) the consummation of the
Change of Control and (2) the public announcement of such Change of Control and ending on the date the Holder delivers the Change of Control Redemption Notice (the “Change of Control Redemption Price”). Redemptions required by
this Section 5 shall be made in accordance with the provisions of Section 12 and shall have priority to payments to stockholders in connection with a Change of Control. To the extent redemptions required by this Section 5(b) are
deemed or determined by a court of competent jurisdiction to be prepayments of the Note by the Company, such redemptions shall be deemed to be voluntary prepayments. Notwithstanding anything to the contrary in this Section 5,

  
 - 12 -

 
but subject to Section 3(d), until the Change of Control Redemption Price (together with any interest thereon) is paid in full, the Conversion Amount submitted for redemption under this
Section 5(b) (together with any interest thereon) may be converted, in whole or in part, by the Holder into Common Stock pursuant to Section 3. The parties hereto agree that in the event of the Company’s redemption of any portion of
the Note under this Section 5(b), the Holder’s damages would be uncertain and difficult to estimate because of the parties’ inability to predict future interest rates and the uncertainty of the availability of a suitable substitute
investment opportunity for the Holder. Accordingly, any Change of Control redemption premium due under this Section 5(b) is intended by the parties to be, and shall be deemed, a reasonable estimate of the Holder’s actual loss of its
investment opportunity and not as a penalty. 
 (6) DISTRIBUTION OF ASSETS; RIGHTS UPON ISSUANCE OF PURCHASE RIGHTS AND OTHER
CORPORATE EVENTS. 
 (a) Distribution of Assets. If the Company shall declare or make any dividend or other
distributions of its assets (or rights to acquire its assets) to any or all holders of shares of Common Stock, by way of return of capital or otherwise (including without limitation, any distribution of cash, stock or other securities, property or
options by way of a dividend, spin off, reclassification, corporate rearrangement, scheme of arrangement or other similar transaction) (the “Distributions”), the Company shall make appropriate provision to insure that upon a
conversion of this Note, the Holder will thereafter have the right to receive in addition to the shares of Common Stock receivable upon such conversion, such Distributions to which the Holder would have been entitled with respect to such shares of
Common Stock had such shares of Common Stock been held by the Holder immediately prior to the date on which a record is taken for such Distribution or, if no such record is taken, the date as of which the record holders of Common Stock are to be
determined for such Distributions (without taking into account any limitations or restrictions on the convertibility of this Note). 
 (b) Purchase Rights. If at any time the Company grants, issues or sells any Options, Convertible Securities or rights to purchase stock, warrants, securities or other property pro rata to the
record holders of any class of Common Stock (the “Purchase Rights”), then the Holder will be entitled to acquire, upon the terms applicable to such Purchase Rights, the aggregate Purchase Rights which the Holder could have acquired
if the Holder had held the number of shares of Common Stock acquirable upon complete conversion of this Note (without taking into account any limitations or restrictions on the convertibility of this Note) immediately prior to the date on which a
record is taken for the grant, issuance or sale of such Purchase Rights, or, if no such record is taken, the date as of which the record holders of shares of Common Stock are to be determined for the grant, issue or sale of such Purchase Rights.

 (c) Other Corporate Events. In addition to and not in substitution for any other rights hereunder, prior to the
consummation of any Fundamental Transaction pursuant to which holders of shares of Common Stock are entitled to receive securities or other assets with respect to or in exchange for shares of Common Stock (a “Corporate Event”), the
Company shall make appropriate provision to insure that the Holder will thereafter have the right to receive upon a conversion of this Note, (i) in addition to the shares of Common Stock receivable upon such conversion, such securities or other
assets to which the Holder would have been entitled with respect to such shares of Common Stock had such shares of Common Stock been held by the 

  
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Holder upon the consummation of such Corporate Event (without taking into account any limitations or restrictions on the convertibility of this Note) or (ii) in lieu of the shares of Common
Stock otherwise receivable upon such conversion, such securities or other assets received by the holders of shares of Common Stock in connection with the consummation of such Corporate Event in such amounts as the Holder would have been entitled to
receive had this Note initially been issued with conversion rights for the form of such consideration (as opposed to shares of Common Stock) at a conversion rate for such consideration commensurate with the Conversion Rate. Provision made pursuant
to the preceding sentence shall be in a form and substance satisfactory to the Required Holders. The provisions of this Section shall apply similarly and equally to successive Corporate Events and shall be applied without regard to any limitations
on the conversion or redemption of this Note. 
 (7) RIGHTS UPON ISSUANCE OF OTHER SECURITIES. 

(a) Adjustment of Conversion Price upon Issuance of Common Stock. If and whenever on or after the Subscription Date, the Company
issues or sells, or in accordance with this Section 7(a) is deemed to have issued or sold, any shares of Common Stock (excluding Excluded Securities and shares of Common Stock deemed to have been issued or sold by the Company in connection with
any Excluded Securities) for a consideration per share (the “New Issuance Price”) less than a price (the “Applicable Price”) equal to the Conversion Price in effect immediately prior to such issue or sale or deemed
issuance (the foregoing a “Dilutive Issuance”), then immediately after such Dilutive Issuance the Conversion Price then in effect shall be reduced concurrently with such Dilutive Issuance to (A) in the event that the Dilutive
Issuance is completed at a time during which at least one-third of the Original Principal Amount of the Notes remains outstanding (the “Ratchet Period”), to the New Issuance Price, and (B) in the event that the Dilutive
Issuance is completed at a time that less than one-third of the Original Principal Amount of the Notes remain outstanding, an amount determined by multiplying the Conversion Price then in effect by a fraction, (x) the numerator of which shall
be the sum of (1) the number of shares of Common Stock Deemed Outstanding immediately prior to such Dilutive Issuance plus (2) the number of shares of Common Stock which the aggregate consideration received by the Company for such
additional shares in the Dilutive Issuance would purchase at the Conversion Price then in effect; and (y) the denominator of which shall be the number of shares of Common Stock Deemed Outstanding immediately after such Dilutive Issuance but
before giving effect to anti-dilution rights contained in other securities of the Company that would be triggered by the same Dilutive Issuance. For purposes of this paragraph, “Common Stock Deemed Outstanding” shall mean at any
given time, the number of shares of Common Stock outstanding at such time, plus the number of shares of Common Stock deemed to be outstanding pursuant to Sections 7(a)(i) and 7(a)(ii) hereof regardless of whether the Options or Convertible
Securities are actually exercisable at such time, but excluding any Common Stock owned or held by or for the account of the Company or issuable upon conversion or exercise, as applicable, of the Notes and the Warrants. For purposes of determining
the adjusted Conversion Price under this Section 7(a), the following shall be applicable: 
 (i)
Issuance of Options. If the Company in any manner grants any Options and the lowest price per share for which one share of Common Stock is issuable upon the exercise of any such Option or upon conversion, exercise or exchange of any
Convertible Securities issuable upon exercise of any such Option is less than the 

  
 - 14 -

 
Applicable Price, then such share of Common Stock shall be deemed to be outstanding and to have been issued and sold by the Company at the time of the granting or sale of such Option for such
price per share. For purposes of this Section 7(a)(i), the “lowest price per share for which one share of Common Stock is issuable upon exercise of such Options or upon conversion, exercise or exchange of such Convertible Securities
issuable upon exercise of any such Option” shall be equal to the sum of the lowest amounts of consideration (if any) received or receivable by the Company with respect to any one share of Common Stock upon the granting or sale of the Option,
upon exercise of the Option and upon conversion, exercise or exchange of any Convertible Security issuable upon exercise of such Option less any consideration paid or payable by the Company with respect to such one share of Common Stock upon the
granting or sale of such Option, upon exercise of such Option and upon conversion exercise or exchange of any Convertible Security issuable upon exercise of such Option. No further adjustment of the Conversion Price shall be made upon the actual
issuance of such shares of Common Stock or of such Convertible Securities upon the exercise of such Options or upon the actual issuance of such shares of Common Stock upon conversion, exercise or exchange of such Convertible Securities. 

(ii) Issuance of Convertible Securities. If the Company in any manner issues or sells any Convertible Securities
and the lowest price per share for which one share of Common Stock is issuable upon the conversion, exercise or exchange thereof is less than the Applicable Price, then such share of Common Stock shall be deemed to be outstanding and to have been
issued and sold by the Company at the time of the issuance or sale of such Convertible Securities for such price per share. For the purposes of this Section 7(a)(ii), the “lowest price per share for which one share of Common Stock is
issuable upon the conversion, exercise or exchange thereof” shall be equal to the sum of the lowest amounts of consideration (if any) received or receivable by the Company with respect to one share of Common Stock upon the issuance or sale of
the Convertible Security and upon conversion, exercise or exchange of such Convertible Security less any consideration paid or payable by the Company with respect to such one share of Common Stock upon the issuance or sale of such Convertible
Security and upon conversion, exercise or exchange of such Convertible Security. No further adjustment of the Conversion Price shall be made upon the actual issuance of such shares of Common Stock upon conversion, exercise or exchange of such
Convertible Securities, and if any such issue or sale of such Convertible Securities is made upon exercise of any Options for which adjustment of the Conversion Price has been or is to be made pursuant to other provisions of this Section 7(a),
no further adjustment of the Conversion Price shall be made by reason of such issue or sale. 
 (iii) Change
in Option Price or Rate of Conversion. If the purchase price provided for in any Options issued after the Subscription Date, the additional consideration, if any, payable upon the issue, conversion, exercise or exchange of any Convertible
Securities issued after the Subscription Date, or the rate at which any Convertible Securities issued after the Subscription Date are convertible into or exercisable or exchangeable for shares of Common Stock increases or decreases at any time, the
Conversion Price at the time of such increase or decrease shall be adjusted to the Conversion Price which would have been in effect at such time had such Options or Convertible Securities provided for such increased or decreased purchase price,
additional 

  
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consideration or increased or decreased conversion rate, as the case may be, at the time initially granted, issued or sold. Additionally, if the terms of any Option or Convertible Security that
was outstanding as of the Subscription Date is increased or decreased in the manner described in the immediately preceding sentence, then such Option or Convertible Security and the shares of Common Stock deemed issuable upon exercise, conversion or
exchange thereof shall be deemed to have been issued as of the date of such increase or decrease, but in such event the amount of the adjustment to the Conversion Price pursuant to this Section 7 will not be proportionately greater than the
proportionate amount of the increase or decrease. No adjustment pursuant to this Section 7(a) shall be made if such adjustment would result in an increase of the Conversion Price then in effect. 

(iv) Calculation of Consideration Received. In case any Option is issued in connection with
the issue or sale of other securities of the Company, together comprising one integrated transaction, (x) the Options will be deemed to have been issued for the Option Value and (y) the other securities issued or sold in such integrated
transaction shall be deemed to have been issued for the difference of (I) the aggregate consideration received by the Company less any consideration paid or payable by the Company pursuant to the terms of such other securities of the Company,
less (II) the Option Value. If any shares of Common Stock, Options or Convertible Securities are issued or sold or deemed to have been issued or sold for cash, the consideration received therefor will be deemed to be the net amount received by the
Company therefor. If any shares of Common Stock, Options or Convertible Securities are issued or sold for a consideration other than cash, the amount of such consideration received by the Company will be the fair value of such consideration, except
where such consideration consists of securities, in which case the amount of consideration received by the Company will be the Closing Sale Price of such security on the date of receipt. If any shares of Common Stock, Options or Convertible
Securities are issued to the owners of the non-surviving entity in connection with any merger in which the Company is the surviving entity, the amount of consideration therefor will be deemed to be the fair value of such portion of the net assets
and business of the non-surviving entity as is attributable to such shares of Common Stock, Options or Convertible Securities, as the case may be. The fair value of any consideration other than cash or securities will be determined jointly by the
Company and the Required Holders. If such parties are unable to reach agreement within ten (10) days after the occurrence of an event requiring valuation (the “Valuation Event”), the fair value of such consideration will be
determined within five (5) Trading Days after the tenth (10th) day following the Valuation Event by an independent, reputable appraiser jointly selected by the Company and the Required Holders. The determination of such appraiser shall be final and binding
upon all parties absent manifest error and the fees and expenses of such appraiser shall be borne by the Company. 
 (v) Record Date. If the Company takes a record of the holders of shares of Common Stock for the purpose of entitling them (A) to receive a dividend or other distribution payable in shares of
Common Stock, Options or in Convertible Securities or (B) to subscribe for or purchase shares of Common Stock, Options or Convertible Securities, then such record date will be deemed to be the date of the issue or sale of the shares of Common
Stock deemed to have been issued or sold upon the declaration of such dividend or the making of such other distribution or the date of the granting of such right of subscription or purchase, as the case may be. 

  
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 (vi)
Variable-Priced Securities. If the Company issues or sells, or in accordance with Section 7 is deemed to have issued or sold, any Options or Convertible Securities after the Issuance Date, that are convertible into or exchangeable or
exercisable for shares of Common Stock at a price which varies or may vary with the market price of the shares of Common Stock, including by way of one or more reset(s) to a fixed price (each of the formulations for such variable price being herein
referred to as, a “Variable Price Formulation”), the Company shall provide written notice thereof via facsimile and overnight courier to the Holder (the “Variable Notice”) on the date of issuance or deemed issuance
of such Convertible Securities or Options. From and after the date the Company issues or is deemed to have issued any such Convertible Securities or Options with a Variable Price Formulation, but only for so long as such Convertible Securities or
Options are outstanding, the Holder shall have the right, but not the obligation, in its sole discretion to substitute any applicable Variable Price Formulation for the Conversion Price upon the Conversion of this Note by designating in the
Conversion Notice delivered upon any conversion of this Notes that solely for purposes of such conversion the Holder is relying on the Variable Price Formulation rather than the Conversion Price then in effect. The Holder’s election to rely on
a Variable Price Formulation for a particular conversion of this Note shall not obligate the Holder to rely on a Variable Price Formulation for any future conversion of this Note. In connection with determining the “lowest price per share for
which one share of Common Stock is issuable upon exercise of any Option” pursuant to Section 7(a)(i) and the “lowest price per share for which one share of Common Stock is issuable upon the conversion, exercise or exchange of a
Convertible Security” pursuant to Section 7(a)(ii), as such terms pertain solely to any Variable Price Formulation contained in any Option or Convertible Securities issued after the Issuance Date, such lowest price shall equal the lesser
of (i) the fixed exercise, conversion or exchange price set forth in the applicable Option or Convertible Security and (ii) the Variable Price Formulation contained in the applicable Option or Convertible Security, calculated as if such
Option or Convertible Security were converted, exercised or exchanged as of the date of issuance of the applicable Option or Convertible Security. 
 (b) Adjustment of Conversion Price upon Subdivision or Combination of Common Stock. If the Company at any time on or after the Subscription Date subdivides (by any stock split, stock dividend,
recapitalization or otherwise) one or more classes of its outstanding shares of Common Stock into a greater number of shares, the Conversion Price in effect immediately prior to such subdivision will be proportionately reduced. If the Company at any
time on or after the Subscription Date combines (by combination, reverse stock split or otherwise) one or more classes of its outstanding shares of Common Stock into a smaller number of shares, the Conversion Price in effect immediately prior to
such combination will be proportionately increased. 
 (c) De Minimis Adjustments. No adjustment in the Conversion Price
shall be required unless such adjustment would require an increase or decrease of at least $0.01 in such price; provided, however, that any adjustment which by reason of this Section 7(c) is not required to be made shall be carried forward and
taken into account in any subsequent adjustments 

  
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under this Section 7. All calculations under this Section 7 shall be made by the Company in good faith and shall be made to the nearest cent or to the nearest one hundredth of a share,
as applicable. No adjustment need be made for a change in the par value or no par value of the Company’s Common Stock. 

(d) Voluntary Adjustment By Company. The Company may at any time during the term of this Note reduce the then current Conversion
Price to any amount and for any period of time deemed appropriate by the Board of Directors of the Company. 
 (8)
NONCIRCUMVENTION. The Company hereby covenants and agrees that the Company will not, by amendment of its Certificate of Incorporation, Bylaws or through any reorganization, transfer of assets, consolidation, merger, scheme of arrangement,
dissolution, issue or sale of securities, or any other voluntary action, avoid or seek to avoid the observance or performance of any of the terms of this Note, and will at all times in good faith carry out all of the provisions of this Note and take
all action as may be required to protect the rights of the Holder of this Note. 
 (9) RESERVATION OF AUTHORIZED SHARES.

 (a) Reservation. The Company shall initially reserve out of its authorized and unissued Common Stock a number of
shares of Common Stock for each of the Notes equal to 130% of the Conversion Rate with respect to the Conversion Amount of each such Note as of the Issuance Date. So long as any of the Notes are outstanding, the Company shall take all action
necessary to reserve and keep available out of its authorized and unissued Common Stock, solely for the purpose of effecting the conversion of the Notes, 130% of the number of shares of Common Stock as shall from time to time be necessary to effect
the conversion of all of the Notes then outstanding; provided that at no time shall the number of shares of Common Stock so reserved be less than the number of shares required to be reserved by the previous sentence (without regard to any
limitations on conversions) (the “Required Reserve Amount”). The initial number of shares of Common Stock reserved for conversions of the Notes and each increase in the number of shares so reserved shall be allocated pro rata among
the holders of the Notes based on the principal amount of the Notes held by each holder at the Closing (as defined in the Securities Purchase Agreement) or increase in the number of reserved shares, as the case may be (the “Authorized Share
Allocation”). In the event that a holder shall sell or otherwise transfer any of such holder’s Notes, each transferee shall be allocated a pro rata portion of such holder’s Authorized Share Allocation. Any shares of Common Stock
reserved and allocated to any Person which ceases to hold any Notes shall be allocated to the remaining holders of Notes, pro rata based on the principal amount of the Notes then held by such holders. 

(b) Insufficient Authorized Shares. If at any time while any of the Notes remain outstanding the Company does not have a
sufficient number of authorized and unreserved shares of Common Stock to satisfy its obligation to reserve for issuance upon conversion of the Notes at least a number of shares of Common Stock equal to the Required Reserve Amount (an
“Authorized Share Failure”), then the Company shall immediately take all action necessary to increase the Company’s authorized shares of Common Stock to an amount sufficient to allow the Company to reserve the Required Reserve
Amount for the Notes then outstanding. Without limiting the generality of the foregoing sentence, as soon as practicable after 

  
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the date of the occurrence of an Authorized Share Failure, but in no event later than sixty (60) days after the occurrence of such Authorized Share Failure, the Company shall either
(x) obtain the written consent of its stockholders for the approval of an increase in the number of authorized shares of Common Stock and provide each stockholder with an information statement with respect thereto or (y) hold a meeting of
its stockholders for the approval of an increase in the number of authorized shares of Common Stock. In connection with such meeting, the Company shall provide each stockholder with a proxy statement and shall use its best efforts to solicit its
stockholders’ approval of such increase in authorized shares of Common Stock and to cause its board of directors to recommend to the stockholders that they approve such proposal. 

(10) COMPANY’S RIGHT OF MANDATORY CONVERSION. 
 (a) Mandatory Conversion. At any time after the effective date (the “Effective Date”) of the Company’s Plan of Reorganization with respect to the Company’s Chapter 11
Case (the “Mandatory Conversion Eligibility Date”), if (i) the Weighted Average Price of the Common Stock listed on the Principal Market equals or exceeds 150% of the Conversion Price as of the Issuance Date (subject to
appropriate adjustments for stock splits, stock dividends, stock combinations and other similar transactions after the Issuance Date) for a period of ten (10) consecutive Trading Days commencing after the Mandatory Conversion Eligibility Date
(the “Mandatory Conversion Measuring Period”), and (ii) no Equity Conditions Failure has occurred, the Company shall have the right to require the Holder to convert all or any portion of the Conversion Amount then remaining
under this Note, in each case as designated in the Mandatory Conversion Notice (as defined below) into fully paid, validly issued and nonassessable shares of Common Stock in accordance with Section 3(c) hereof at the Conversion Rate as of the
Mandatory Conversion Date (as defined below) (a “Mandatory Conversion”). The Company may exercise its right to require conversion under this Section 10(a) by delivering within not more than two (2) Trading Days following
the end of such Mandatory Conversion Measuring Period a written notice thereof by facsimile and overnight courier to all, but not less than all, of the holders of Notes and the Transfer Agent (the “Mandatory Conversion Notice” and
the date all of the holders of the Notes received such notice by facsimile is referred to as the “Mandatory Conversion Notice Date”). The Mandatory Conversion Notice shall be irrevocable. The Mandatory Conversion Notice shall
(y) state (I) the Trading Day selected for the Mandatory Conversion, which Trading Day shall be no sooner than twenty (20) Trading Days nor later than sixty (60) Trading Days following the Mandatory Conversion Notice Date (the
“Mandatory Conversion Date”), (II) the aggregate Conversion Amount of the Notes subject to Mandatory Conversion from the Holder and all of the holders of the Notes pursuant to this Section 10(a) (and analogous provisions under
the Other Notes), (III) the number of shares of Common Stock to be issued to the Holder on the Mandatory Conversion Date and (z) certify that there has been no Equity Conditions Failure; provided, however, that the Company may not effect a
Mandatory Conversion under this Section in excess of the Holder Pro Rata Amount of the applicable Mandatory Conversion Volume Limitation. Notwithstanding the foregoing, the Company may not effect a Mandatory Conversion until a minimum of thirty
(30) consecutive days have elapsed after any prior Mandatory Conversion Date. 
 (b) Pro Rata Conversion
Requirement. If the Company elects to cause a conversion of any Conversion Amount of this Note pursuant to Section 10(a), then it must simultaneously take the same action in the same proportion with respect to the Other Notes. If the

  
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Company elects a Mandatory Conversion of this Note pursuant to Section 10(a) (or similar provisions under the Other Notes) with respect to less than all of the Conversion Amounts of the
Notes then outstanding, then the Company shall require conversion of a Conversion Amount from each of the holders of the Notes equal to the product of (1) the aggregate Conversion Amount of Notes which the Company has elected to cause to be
converted pursuant to Section 10(a), multiplied by (2) a fraction, the numerator of which is the sum of the aggregate Original Principal Amount of the Notes purchased by such holder of outstanding Notes and the denominator of which is the
sum of the aggregate Original Principal Amount of the Notes purchased by all holders holding outstanding Notes (such fraction with respect to each holder is referred to as its “Conversion Allocation Percentage,” and such amount with
respect to each holder is referred to as its “Pro Rata Conversion Amount”); provided, however, that in the event that any holder’s Pro Rata Conversion Amount exceeds the outstanding Principal amount of such holder’s Note,
then such excess Pro Rata Conversion Amount shall be allocated amongst the remaining holders of Notes in accordance with the foregoing formula. In the event that the initial holder of any Notes shall sell or otherwise transfer any of such
holder’s Notes, the transferee shall be allocated a pro rata portion of such holder’s Conversion Allocation Percentage and the Pro Rata Conversion Amount. 
 (11) OPTIONAL REDEMPTION AT THE COMPANY’S ELECTION. 
 (a)
General. At any time after the date hereof, so long as there has been no Equity Conditions Failure, the Company shall have the right to redeem all or any portion of the Conversion Amount then remaining under this Note (the “Company
Optional Redemption Amount”) as designated in the Company Optional Redemption Notice on the Company Optional Redemption Date (each as defined below) (a “Company Optional Redemption”). The portion of this Note subject to
redemption pursuant to this Section 11(a) shall be redeemed by the Company in cash at a price equal to 110% of the sum of (x) any Make-Whole Amount and (y) the Conversion Amount being redeemed (the “Company Optional Redemption
Price”). The Company may exercise its right to require redemption under this Section 11 by delivering a written notice thereof by facsimile and overnight courier to all, but not less than all, of the holders of Notes (the
“Company Optional Redemption Notice” and the date all of the holders received such notice is referred to as the “Company Optional Redemption Notice Date”). Each Company Optional Redemption Notice shall be
irrevocable. The Company Optional Redemption Notice shall state (1) the date on which the Company Optional Redemption shall occur (the “Company Optional Redemption Date”), which date shall not be less than thirty
(30) Business Days nor more than sixty (60) Business Days following the Company Optional Redemption Notice Date, and (2) the aggregate Conversion Amount of the Notes which the Company has elected to be subject to Company Optional
Redemption from the Holder and all of the other holders of the Notes pursuant to this Section 11(a) (and analogous provisions under the Other Notes) on the Company Optional Redemption Date. The Company may not effect a Company Optional
Redemption until a minimum of five (5) consecutive Trading Days have elapsed after any prior Company Optional Redemption Date. Notwithstanding anything to the contrary in this Section 11, until the Company Optional Redemption Price is paid
in full, the Company Optional Redemption Amount may be converted, in whole or in part, by the Holders into shares of Common Stock pursuant to Section 3. If the Holder so elects, any or all of the Conversion Amounts converted by the Holder after
the Company Optional Redemption Notice Date shall reduce the Company Optional Redemption Amount of this Note required to be redeemed on the Company Optional Redemption Date. Redemptions made pursuant to this Section 11 shall be made in
accordance with Section 12. 

  
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 (b) Pro Rata
Redemption Requirement. If the Company elects to cause a Company Optional Redemption pursuant to Section 11(a), then it must simultaneously take the same action in the same proportion with respect to the Other Notes. If the Company elects
to cause a Company Optional Redemption pursuant to Section 11(a) (or similar provisions under the Other Notes) with respect to less than all of the Conversion Amounts of the Notes then outstanding, then the Company shall require redemption of a
Conversion Amount from each of the holders of the Notes equal to the product of (i) the aggregate Conversion Amount of Notes which the Company has elected to cause to be redeemed pursuant to Section 11(a), multiplied by (ii) a
fraction, the numerator of which is the sum of the aggregate Original Principal Amount of the Notes purchased by such holder of outstanding Notes and the denominator of which is the sum of the aggregate Original Principal Amount of the Notes
purchased by all holders holding outstanding Notes (such fraction with respect to each holder is referred to as its “Company Redemption Allocation Percentage”, and such amount with respect to each holder is referred to as its
“Pro Rata Company Redemption Amount”); provided, however that in the event that any holder’s Pro Rata Company Redemption Amount exceeds the outstanding Principal amount of such holder’s Note, then such excess Pro Rata
Company Redemption Amount shall be allocated amongst the remaining holders of Notes in accordance with the foregoing formula. In the event that the initial holder of any Notes shall sell or otherwise transfer any of such holder’s Notes, the
transferee shall be allocated a pro rata portion of such holder’s Company Redemption Allocation Percentage and Pro Rata Company Redemption Amount. 
 (12) REDEMPTIONS. 
 (a) Mechanics. The Company shall deliver the
applicable Event of Default Redemption Price to the Holder within five (5) Business Days after the Company’s receipt of the Holder’s Event of Default Redemption Notice (the “Event of Default Redemption Date”). If the
Holder has submitted a Change of Control Redemption Notice in accordance with Section 5(b), the Company shall deliver the applicable Change of Control Redemption Price to the Holder (i) concurrently with the consummation of such Change of
Control if such notice is received prior to the consummation of such Change of Control and (ii) within five (5) Business Days after the Company’s receipt of such notice otherwise (such date, the “Change of Control Redemption
Date”). If the Company has submitted a Company Optional Redemption Notice in accordance with Section 11(a), the Company shall deliver the applicable Company Optional Redemption Price to the Holder on the Company Optional Redemption Date.
In the event of a redemption of less than all of the Conversion Amount of this Note, the Company shall promptly cause to be issued and delivered to the Holder a new Note (in accordance with Section 17(d)) representing the outstanding Principal
which has not been redeemed. In the event that the Company does not pay the applicable Redemption Price to the Holder within the time period required, at any time thereafter and until the Company pays such unpaid Redemption Price in full, the Holder
shall have the option, in lieu of redemption, to require the Company by written notice to promptly return to the Holder all or any portion of this Note representing the Conversion Amount that was submitted for redemption and for which the applicable
Redemption Price has not been paid. Upon the Company’s receipt of such notice, (x) the applicable Redemption Notice shall be null and void with respect to such Conversion Amount, (y) the Company shall immediately return this Note, or
issue 

  
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a new Note (in accordance with Section 17(d)) to the Holder representing such Conversion Amount to be redeemed and (z) the Conversion Price of this Note or such new Notes shall be
adjusted to the lesser of (A) the Conversion Price as in effect on the date on which the applicable Redemption Notice is voided and (B) the lowest Closing Bid Price of the shares of Common Stock during the period beginning on and including
the date on which the applicable Redemption Notice is delivered to or by the Company and ending on and including the date on which the applicable Redemption Notice is voided. 
 (b) Redemption by Other Holders. Upon the Company’s receipt of notice from any of the holders of the Other Notes for redemption or repayment as a result of an event or occurrence substantially
similar to the events or occurrences described in Section 4(b) or Section 5(b) (each, an “Other Redemption Notice”), the Company shall immediately, but no later than one (1) Business Day of its receipt thereof,
forward to the Holder by facsimile a copy of such notice. If the Company receives a Redemption Notice and one or more Other Redemption Notices, during the seven (7) Business Day period beginning on and including the date which is three
(3) Business Days prior to the Company’s receipt of the Holder’s Redemption Notice and ending on and including the date which is three (3) Business Days after the Company’s receipt of the Holder’s Redemption Notice and
the Company is unable to redeem all principal, interest and other amounts designated in such Redemption Notice and such Other Redemption Notices received during such seven (7) Business Day period, then the Company shall redeem a pro rata amount
from each holder of the Notes (including the Holder) based on the principal amount of the Notes submitted for redemption pursuant to such Redemption Notice and such Other Redemption Notices received by the Company during such seven Business Day
period. 
 (13) VOTING RIGHTS. The Holder shall have no voting rights as the holder of this Note, except as required by
law, including, but not limited to, the General Corporation Law of the State of Delaware, and as expressly provided in this Note. 
 (14) COVENANTS. 
 (a) Rank and Security. All payments due under
this Note (a) shall rank pari passu with all Other Notes and (b) shall be senior to all other Indebtedness of the Company with respect to the Collateral. Additionally, all Indebtedness evidenced by this Note shall pursuant to the
terms of the Security Documents be secured by a perfected first priority Lien in favor of the Collateral Agent (as defined in the Securities Purchase Agreement) for the benefit of the holders of the Notes on any Collateral. 

(b) Incurrence of Indebtedness. So long as this Note is outstanding, the Company shall not, directly or indirectly, incur or
guarantee, assume or suffer to exist any Indebtedness, other than Permitted Indebtedness. 
 (c) Existence of Liens. So
long as this Note is outstanding, the Company shall not, directly or indirectly, allow or suffer to exist any mortgage, lien, pledge, charge, security interest or other encumbrance (collectively, “Liens”) upon any of the Collateral.

 (d) Bankruptcy Court Order. So long as this Note is outstanding, the Company shall not, at any time, seek, consent to
or suffer to exist any reversal, modification, amendment, stay or vacation of the Approval Order or the Final Approval Order, except for modifications and amendments agreed to by the Required Holders. 

  
 - 22 -

  
 (e) Existence of
Claims. So long as this Note is outstanding, the Company shall not at any time, suffer to exist a priority for any administrative expense or unsecured claim against the Company, including, without limitation, any administrative expenses of the
kind specified in, or arising or ordered under, Sections 105, 326, 328, 330, 331, 503(b), 506(c), 507(a), 507(b), 546(c) 726 and 1114 of the Bankruptcy Code equal or superior to the priority of the Holder in respect of the Collateral. 

(f) Restricted Payments. The Company shall not, directly or indirectly, redeem, defease, repurchase, repay or make any payments
in respect of, by the payment of cash or cash equivalents (in whole or in part, whether by way of open market purchases, tender offers, private transactions or otherwise), all or any portion of any Indebtedness (other than this Note and the Other
Notes), whether by way of payment in respect of principal of (or premium, if any) or interest on, such Indebtedness if at the time such payment is due or is otherwise made or, after giving effect to such payment, an event constituting, or that with
the passage of time and without being cured would constitute, an Event of Default has occurred and is continuing. 
 (g)
Restriction on Redemption. Until all of the Notes have been converted, redeemed or otherwise satisfied in accordance with their terms, the Company shall not, directly or indirectly, redeem or repurchase its capital stock without the prior
express written consent of the Required Holders. 
 (h) Change in Nature of Business. The Company shall not make any
change in the nature of its business as described in the Company’s most recent annual report filed on Form 10-K with the SEC. The Company shall not modify its corporate structure or purpose. 

(i) Preservation of Existence, Etc. The Company shall maintain and preserve its existence, rights and privileges, and become or
remain, duly qualified and in good standing in each jurisdiction in which the character of the properties owned or leased by it or in which the transaction of its business makes such qualification necessary. 

(j) Maintenance of Properties, Etc. The Company shall maintain and preserve all of its properties which are necessary or useful
in the proper conduct of its business in good working order and condition, ordinary wear and tear excepted, and comply at all times with the provisions of all leases to which it is a party as lessee or under which it occupies property, so as to
prevent any loss or forfeiture thereof or thereunder. 
 (k) Maintenance of Insurance. The Company shall maintain
insurance with responsible and reputable insurance companies or associations (including, without limitation, comprehensive general liability, hazard, rent and business interruption insurance) with respect to its properties (including all real
properties leased or owned by it) and business, in such amounts and covering such risks as is required by any governmental authority having jurisdiction with respect thereto or as is carried generally in accordance with sound business practice by
companies in similar businesses similarly situated. 

  
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 (l) Transactions
with Affiliates. The Company shall not enter into, renew, extend or be a party to, any transaction or series of related transactions (including, without limitation, the purchase, sale, lease, transfer or exchange of property or assets of any
kind or the rendering of services of any kind) with any Affiliate, except (i) in the ordinary course of business in a manner and to an extent consistent with past practice and necessary or desirable for the prudent operation of its business
(including consistent with the past practices of Accentia Biopharmaceuticals Inc.), for fair consideration and on terms no less favorable to it than would be obtainable in a comparable arm’s length transaction with a Person that is not an
Affiliate thereof or (ii) for any transactions or series of related transactions as are approved by a disinterested committee of the Company’s board of directors. 
 (15) VOTE TO ISSUE, OR CHANGE THE TERMS OF, NOTES. The affirmative vote at a meeting duly called for such purpose or the written consent without a meeting of the Required Holders shall be required
for any change or amendment to this Note or the Other Notes. 
 (16) TRANSFER. This Note and any shares of Common Stock
issued upon conversion of this Note may be offered, sold, assigned or transferred by the Holder without the consent of the Company, subject only to the provisions of Section 2(i) of the Securities Purchase Agreement. 

(17) REISSUANCE OF THIS NOTE. 
 (a) Transfer. If this Note is to be transferred, the Holder shall surrender this Note to the Company, whereupon the Company will forthwith issue and deliver upon the order of the Holder a new Note
(in accordance with Section 17(d)), registered as the Holder may request, representing the outstanding Principal being transferred by the Holder and, if less then the entire outstanding Principal is being transferred, a new Note (in accordance
with Section 17(d)) to the Holder representing the outstanding Principal not being transferred. The Holder and any assignee, by acceptance of this Note, acknowledge and agree that, by reason of the provisions of Section 3(c)(iv) following
conversion or redemption of any portion of this Note, the outstanding Principal represented by this Note may be less than the Principal stated on the face of this Note. 
 (b) Lost, Stolen or Mutilated Note. Upon receipt by the Company of evidence reasonably satisfactory to the Company of the loss, theft, destruction or mutilation of this Note, and, in the case of
loss, theft or destruction, of any indemnification undertaking by the Holder to the Company in customary form and, in the case of mutilation, upon surrender and cancellation of this Note, the Company shall execute and deliver to the Holder a new
Note (in accordance with Section 17(d)) representing the outstanding Principal. 
 (c) Note Exchangeable for Different
Denominations. This Note is exchangeable, upon the surrender hereof by the Holder at the principal office of the Company, for a new Note or Notes (in accordance with Section 17(d) and in principal amounts of at least $100,000) representing
in the aggregate the outstanding Principal of this Note, and each such new Note will represent such portion of such outstanding Principal as is designated by the Holder at the time of such surrender. 

  
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 (d) Issuance of
New Notes. Whenever the Company is required to issue a new Note pursuant to the terms of this Note, such new Note (i) shall be of like tenor with this Note, (ii) shall represent, as indicated on the face of such new Note, the Principal
remaining outstanding (or in the case of a new Note being issued pursuant to Section 17(a) or Section 17(c), the Principal designated by the Holder which, when added to the principal represented by the other new Notes issued in connection
with such issuance, does not exceed the Principal remaining outstanding under this Note immediately prior to such issuance of new Notes), (iii) shall have an issuance date, as indicated on the face of such new Note, which is the same as the
Issuance Date of this Note, (iv) shall have the same rights and conditions as this Note, and (v) shall represent accrued and unpaid Interest of this Note, from the Issuance Date. 

(18) REMEDIES, CHARACTERIZATIONS, OTHER OBLIGATIONS, BREACHES AND INJUNCTIVE RELIEF. The remedies provided in this Note shall be
cumulative and in addition to all other remedies available under this Note and any of the other Transaction Documents at law or in equity (including a decree of specific performance and/or other injunctive relief), and nothing herein shall limit the
Holder’s right to pursue actual and consequential damages for any failure by the Company to comply with the terms of this Note. Amounts set forth or provided for herein with respect to payments, conversion and the like (and the computation
thereof) shall be the amounts to be received by the Holder and shall not, except as expressly provided herein, be subject to any other obligation of the Company (or the performance thereof). The Company acknowledges that a breach by it of its
obligations hereunder will cause irreparable harm to the Holder and that the remedy at law for any such breach may be inadequate. The Company therefore agrees that, in the event of any such breach or threatened breach, the Holder shall be entitled,
in addition to all other available remedies, to an injunction restraining any breach, without the necessity of showing economic loss and without any bond or other security being required. 

(19) PAYMENT OF COLLECTION, ENFORCEMENT AND OTHER COSTS. If (a) this Note is placed in the hands of an attorney for
collection or enforcement or is collected or enforced through any legal proceeding or the Holder otherwise takes action to collect amounts due under this Note or to enforce the provisions of this Note or (b) there occurs any bankruptcy,
reorganization, receivership of the Company or other proceedings affecting Company creditors’ rights and involving a claim under this Note (other than the Company’s Chapter 11 Case), then the Company shall pay the costs incurred by the
Holder for such collection, enforcement or action or in connection with such bankruptcy, reorganization, receivership or other proceeding, including, but not limited to, attorneys’ fees and disbursements. 

(20) CONSTRUCTION; HEADINGS. This Note shall be deemed to be jointly drafted by the Company and all the Holders and shall not be
construed against any person as the drafter hereof. The headings of this Note are for convenience of reference and shall not form part of, or affect the interpretation of, this Note. 

(21) FAILURE OR INDULGENCE NOT WAIVER. No failure or delay on the part of the Holder in the exercise of any power, right or
privilege hereunder shall operate as a waiver thereof unless a waiver signed by the Holder is set forth in writing, nor shall any single or partial exercise of any such power, right or privilege preclude other or further exercise thereof or of any
other right, power or privilege except as otherwise set forth in a written instrument signed by Holder. 

  
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 (22) DISPUTE
RESOLUTION. In the case of a dispute as to the determination of the Closing Bid Price, the Closing Sale Price or the Weighted Average Price or the arithmetic calculation of the Conversion Rate, the Conversion Price or any Redemption Price, the
Company shall submit the disputed determinations or arithmetic calculations via facsimile within one (1) Business Day of receipt, or deemed receipt, of the Conversion Notice or Redemption Notice or other event giving rise to such dispute, as
the case may be, to the Holder. If the Holder and the Company are unable to agree upon such determination or calculation within one (1) Business Day of such disputed determination or arithmetic calculation being submitted to the Holder, then
the Company shall, within one Business Day submit via facsimile (a) the disputed determination of the Closing Bid Price, the Closing Sale Price or the Weighted Average Price to an independent, reputable investment bank selected by the Holder
and approved by the Company, such approval not to be unreasonably withheld, or (b) the disputed arithmetic calculation of the Conversion Rate, Conversion Price or any Redemption Price to an independent, outside accountant, selected by the
Holder and approved by the Company, such approval not to be unreasonably withheld. The Company, at the Company’s expense, shall cause the investment bank or the accountant, as the case may be, to perform the determinations or calculations and
notify the Company and the Holder of the results no later than five (5) Business Days from the time it receives the disputed determinations or calculations. Such investment bank’s or accountant’s determination or calculation, as the
case may be, shall be binding upon all parties absent demonstrable error. 
 (23) NOTICES; PAYMENTS. 

(a) Notices. Whenever notice is required to be given under this Note, unless otherwise provided herein, such notice shall be
given in accordance with Section 9(f) of the Securities Purchase Agreement. The Company shall provide the Holder with prompt written notice of all actions taken pursuant to this Note, including in reasonable detail a description of such action
and the reason therefore. Without limiting the generality of the foregoing, the Company will give written notice to the Holder (i) immediately upon any adjustment of the Conversion Price, setting forth in reasonable detail, and certifying, the
calculation of such adjustment and (ii) at least twenty (20) days prior to the date on which the Company closes its books or takes a record (A) with respect to any dividend or distribution upon the Common Stock, (B) with respect
to any pro rata subscription offer to holders of Common Stock or (C) for determining rights to vote with respect to any Fundamental Transaction, dissolution or liquidation, provided in each case that such information shall be made known to the
public prior to or in conjunction with such notice being provided to the Holder. 
 (b) Payments. Whenever any payment
of cash is to be made by the Company to any Person pursuant to this Note, such payment shall be made in lawful money of the United States of America by a check drawn on the account of the Company and sent via overnight courier service to such Person
at such address as previously provided to the Company in writing (which address, in the case of each of the Holders, shall initially be as set forth on the Schedule of Buyers attached to the Securities Purchase Agreement); provided that the Holder
may elect to receive a payment of cash via wire transfer of immediately available funds by providing the Company with prior written notice setting out such request and the Holder’s wire transfer instructions. Whenever any amount expressed to be
due by the terms of this Note is due on any 

  
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day which is not a Business Day, the same shall instead be due on the next succeeding day which is a Business Day and, in the case of any Interest Date which is not the date on which this Note is
paid in full, the extension of the due date thereof shall not be taken into account for purposes of determining the amount of Interest due on such date. 
 (24) CANCELLATION. After all Principal, accrued Interest and other amounts at any time owed on this Note have been paid in full, this Note shall automatically be deemed canceled, shall be
surrendered to the Company for cancellation and shall not be reissued. 
 (25) WAIVER OF NOTICE. To the extent permitted
by law, the Company hereby waives demand, notice, protest and all other demands and notices in connection with the delivery, acceptance, performance, default or enforcement of this Note and the Securities Purchase Agreement. 

(26) SUPERPRIORITY CLAIM. The Company’s obligations to the Holder under this Note (and the holders of the Other Notes) shall
constitute allowed superpriority administrative expense claims in the Company’s Chapter 11 Case pursuant to section 364(c)(1) of the Bankruptcy Code (the “Superpriority Claims”), having priority over all other costs and
expenses of administration of any kind, including those specified in, or ordered pursuant to, sections 105, 326, 328, 330, 331, 363, 364, 503, 506, 507, 546, 726, 1113 or 1114 or any other provision of the Bankruptcy Code or otherwise (whether
incurred in the Company’s Chapter 11 Case or any successor case under any chapter of the Bankruptcy Code), and shall at all times be senior to the rights of the Company or any domestic or foreign subsidiary or affiliate of the Company, any
successor trustee or estate representative, or any other creditor or party in interest in the Chapter 11 Case or any successor case; provided, however, that the foregoing provision shall (i) be limited solely to a Superpriority Claim
against only the Collateral and not against any other assets of the Company and (ii) not create any priority or seniority to any claims of Laurus Master Fund Ltd. (In Liquidation) and its Affiliates, Corps Real, LLC or Accentia
Biopharmaceuticals, Inc. in any and all assets of the Company (excluding the Collateral). No cost or expense of administration in the Company’s Chapter 11 Case under any provision of the Bankruptcy Code, including, but not limited to, sections
105, 326, 328, 330, 331, 363, 364, 503, 506, 507, 546, 726, 1113 or 1114 or any other provision of the Bankruptcy Code or otherwise (whether incurred in the Company’s Chapter 11 Case or any successor case under any chapter of the Bankruptcy
Code), shall be senior to, equal to, or pari passu with, the allowed Superpriority Claims granted the holders of the Notes hereunder; provided, however, that the foregoing provision shall (i) be limited solely to a Superpriority
Claim against only the Collateral and not against any other assets of the Company and (ii) not create any priority or seniority to any claims of Laurus Master Fund Ltd. (In Liquidation) and its Affiliates, Corps Real, LLC or Accentia
Biopharmaceuticals, Inc. in any and all assets of the Company (excluding the Collateral). The allowed Superpriority Claim granted the Holder and the holder of the Other Notes hereunder against only the Collateral and not against any other assets of
the Company shall continue in the Company’s Chapter 11 Case and in any successor case under any chapter of the Bankruptcy Code, and shall maintain their priority until all of the aggregate outstanding Principal and unpaid and accrued Interest
owing under the Notes has been indefeasibly paid in full and the Notes have been cancelled. 

  
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 (27) EXCHANGE OF
NOTES. On the Effective Date, this Note shall be mandatorily exchanged for the Exchange Note attached to the Securities Purchase Agreement in the form attached thereto as Exhibit A-2 (the “Exchange Note”). On the
Effective Date, the Holder shall deliver this Note to the Company and concurrently with such delivery, the Company shall issue the Exchange Note to the Holder and cancel this Note.  

(28) GOVERNING LAW; JURISDICTION; JURY TRIAL. For the period from the entry of the Approval Order until the Effective Date, all
disputes under this Note and any other Transaction Document shall be subject to the exclusive jurisdiction of the Bankruptcy Court. This Note shall be construed and enforced in accordance with, and all questions concerning the construction,
validity, interpretation and performance of this Note shall be governed by, the internal laws of the State of New York, without giving effect to any choice of law or conflict of law provision or rule (whether of the State of New York or any other
jurisdictions) that would cause the application of the laws of any jurisdictions other than the State of New York. After the Effective Date, except as provided in Section 22, the Company hereby irrevocably submits to the exclusive jurisdiction
of the state and federal courts sitting in The City of New York, Borough of Manhattan, for the adjudication of any dispute hereunder or in connection herewith or with any transaction contemplated hereby or discussed herein, and hereby irrevocably
waives, and agrees not to assert in any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of any such court, that such suit, action or proceeding is brought in an inconvenient forum or that the venue of such
suit, action or proceeding is improper. Nothing contained herein shall be deemed to limit in any way any right to serve process in any manner permitted by law. Nothing contained herein shall be deemed or operate to preclude the Holder from bringing
suit or taking other legal action against the Company in any other jurisdiction to collect on the Company’s obligations to the Holder, to realize on any collateral or any other security for such obligations, or to enforce a judgment or other
court ruling in favor of the Holder. THE COMPANY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION WITH OR ARISING OUT OF THIS NOTE OR ANY
TRANSACTION CONTEMPLATED HEREBY. 
 (29) SEVERABILITY. If any provision of this Note is prohibited by law or
otherwise determined to be invalid or unenforceable by a court of competent jurisdiction, the provision that would otherwise be prohibited, invalid or unenforceable shall be deemed amended to apply to the broadest extent that it would be valid and
enforceable, and the invalidity or unenforceability of such provision shall not affect the validity of the remaining provisions of this Note so long as this Note as so modified continues to express, without material change, the original intentions
of the parties as to the subject matter hereof and the prohibited nature, invalidity or unenforceability of the provision(s) in question does not substantially impair the respective expectations or reciprocal obligations of the parties or the
practical realization of the benefits that would otherwise be conferred upon the parties. The parties will endeavor in good faith negotiations to replace the prohibited, invalid or unenforceable provision(s) with a valid provision(s), the effect of
which comes as close as possible to that of the prohibited, invalid or unenforceable provision(s). If it shall be found that any default interest or other amount deemed interest due hereunder violates the applicable law governing usury, the
applicable rate of interest due hereunder shall automatically be lowered to equal the maximum rate of interest permitted under applicable law. The Company covenants (to the extent that it may lawfully do so) that it shall

  
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not at any time insist upon, plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay, extension or usury law or other law which would prohibit or forgive the
Company from paying all or any portion of the principal of or default interest on this Note as contemplated herein, wherever enacted, now or at any time hereafter in force, or which may affect the covenants or the performance of this indenture, and
the Company (to the extent it may lawfully do so) hereby expressly waives all benefits or advantage of any such law, and covenants that it will not, by resort to any such law, hinder, delay or impede the execution of any power herein granted to the
Holder, but will suffer and permit the execution of every such as though no such law has been enacted. 
 (30) CERTAIN
DEFINITIONS. For purposes of this Note, the following terms shall have the following meanings: 
 (a)
“Affiliate” means, as to any specified Person, any other Person that directly or indirectly controls, or is under common control with, or is controlled by, such specified Person. As used in this definition,
“control” (including, with its correlative meanings, “controlled by” and “under common control with”) shall mean possession, directly or indirectly, of power to direct or cause the direction of the
management or policies (whether through ownership of securities or partnership or other ownership interests, by contract, or otherwise). 
 (b) “Approved Stock Plan” means any employee benefit plan which has been or is hereafter approved by the Board of Directors of the Company, pursuant to which the Company’s securities
may be issued to any employee, officer, advisor, consultant, and/or director for services provided to the Company; provided, however, that in the case of any issuance of securities to any consultant or advisor of the Company, such securities are
granted solely in consideration of the provision of bona fide services to the Company relating to the Company’s business or operations and not in connection with services relating to a financing or similar activity. 

(c) “Bankruptcy Code” means title 11 of the United States Code, 11 U.S.C. ss 101 et seq.. 

(d) “Bankruptcy Court” means the United States Bankruptcy Court for the Middle District of Florida (Tampa Division).

 (e) “Bloomberg” means Bloomberg Financial Markets. 

(f) “Business Day” means any day other than Saturday, Sunday or other day on which commercial banks in The City of New
York are authorized or required by law to remain closed. 
 (g) “Change of Control” means any Fundamental
Transaction other than (i) any merger, consolidation, reorganization, recapitalization or reclassification of the Common Stock in which this Note remains convertible into the publicly traded common stock of the Successor Entity and in which the
holders of the Company’s voting power immediately prior to such merger, consolidation, reorganization, recapitalization or reclassification continue after such merger, consolidation, reorganization, recapitalization or reclassification to hold
publicly traded securities and, directly or indirectly, the voting power of the Successor Entity necessary to elect a 

  
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majority of the members of the board of directors (or their equivalent if other than a corporation) of such Successor Entity and to approve any measure requiring the approval of holders of a
majority of the common stock (or its equivalent) of the Successor Entity, (ii) a license, distribution or development agreement relating to one or more of the Company’s biotech products entered into on an arms length basis for reasonably
equivalent value with a Person that is not a direct or indirect affiliate of the Company or any officer, director or employee thereof and that is in the business of commercializing or developing biotech products or (iii) pursuant to a migratory
merger effected solely for the purpose of changing the jurisdiction of incorporation of the Company. 
 (h) “Chapter 11
Case” means the Company’s case under chapter 11 of the Bankruptcy Code, captioned In re: Biovest International, Inc., Case No. 8:08-bk-17796-KRM, which case is jointly administered for procedural purposes only under In re:
Accentia Biopharmaceuticals, Inc., Case No. 8:08-bk-17795-KRM. 
 (i) “Closing Bid Price” and
“Closing Sale Price” means, for any security as of any date, the last closing bid price and last closing trade price, respectively, for such security on the Principal Market, as reported by Bloomberg, or, if the Principal Market
begins to operate on an extended hours basis and does not designate the closing bid price or the closing trade price, as the case may be, then the last bid price or last trade price, respectively, of such security prior to 4:00:00 p.m., New York
Time, as reported by Bloomberg, or, if the Principal Market is not the principal securities exchange or trading market for such security, the last closing bid price or last trade price, respectively, of such security on the principal securities
exchange or trading market where such security is listed or traded as reported by Bloomberg, or if the foregoing do not apply, the last closing bid price or last trade price, respectively, of such security in the over-the-counter market on the
electronic bulletin board for such security as reported by Bloomberg, or, if no closing bid price or last trade price, respectively, is reported for such security by Bloomberg, the average of the bid prices, or the ask prices, respectively, of any
market makers for such security as reported in the “pink sheets” by Pink Sheets LLC (formerly the National Quotation Bureau, Inc.). If the Closing Bid Price or the Closing Sale Price cannot be calculated for a security on a particular date
on any of the foregoing bases, the Closing Bid Price or the Closing Sale Price, as the case may be, of such security on such date shall be the fair market value as mutually determined by the Company and the Holder. If the Company and the Holder are
unable to agree upon the fair market value of such security, then such dispute shall be resolved pursuant to Section 22. All such determinations shall be appropriately adjusted for any stock dividend, stock split, stock combination,
reclassification or similar transaction during the applicable calculation period. 
 (j) “Closing Date” shall
have the meaning set forth in the Securities Purchase Agreement, which date is the date the Company initially issued the Notes pursuant to the terms of the Securities Purchase Agreement. 

(k) “Company’s Plan of Reorganization” means the Company’s First Amended Joint Plan of Reorganization dated
as of August 16, 2010 filed in the Chapter 11 Case, as it may be amended, supplemented or modified from time to time. 

(l) “Contingent Obligation” means, as to any Person, any direct or indirect liability, contingent or otherwise, of that
Person with respect to any Indebtedness, lease, 

  
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dividend or other obligation of another Person if the primary purpose or intent of the Person incurring such liability, or the primary effect thereof, is to provide assurance to the obligee of
such liability that such liability will be paid or discharged, or that any agreements relating thereto will be complied with, or that the holders of such liability will be protected (in whole or in part) against loss with respect thereto.

 (m) “Collateral” has the meaning set forth in the Securities Purchase Agreement. 

(n) “Convertible Securities” means any stock or securities (other than Options) directly or indirectly convertible into
or exercisable or exchangeable for shares of Common Stock. 
 (o) “Eligible Market” means the Principal
Market, any other market tier operated by Pink OTC Markets Inc., The New York Stock Exchange, Inc., NYSE Amex, The NASDAQ Global Market, The NASDAQ Capital Market, The NASDAQ Global Select Market, or the OTC Bulletin Board. 

(p) “Equity Conditions” means each of the following conditions: (i) on each day during the period beginning on the
later of three (3) months prior to the applicable date of determination and the Issuance Date of this Note and ending on and including the applicable date of determination (the “Equity Conditions Measuring Period”), all shares
of Common Stock issuable upon conversion of the Notes and exercise of the Warrants shall be eligible for sale without restriction and without the need for registration under any applicable federal or state securities laws including, but not limited
to, pursuant to Section 1145 of the Bankruptcy Code; (ii) on each day during the Equity Conditions Measuring Period the Common Stock is designated for quotation on the Principal Market or any other Eligible Market and shall not have been
suspended from trading on such exchange or market (other than suspensions of not more than two (2) days and occurring prior to the applicable date of determination due to business announcements by the Company) nor shall delisting or suspension
by such exchange or market been threatened or pending either (A) in writing by such exchange or market or (B) by falling below the then effective minimum listing maintenance requirements of such exchange or market; (iii) during the
one (1) year period ending on and including the date immediately preceding the applicable date of determination, the Company shall have delivered shares of Common Stock issuable upon the conversion of the Notes and exercise of the Warrants to
the holders on a timely basis as set forth in Section 3(c) hereof (and analogous provisions under the Other Notes) and Sections 2(a) of the Warrants, respectively; (iv) any applicable shares of Common Stock to be issued in connection with
the event requiring determination may be issued in full without violating or causing the Holder to exceed the provisions of Section 3(d) hereof and the rules or regulations of the Principal Market or any other applicable Eligible Market;
(v) during the Equity Conditions Measuring Period, the Company shall not have failed to timely make any payments within five (5) Business Days of when such payment is due pursuant to any Transaction Document; (vi) during the Equity
Conditions Measuring Period, there shall not have occurred either (A) the public announcement of a pending, proposed or intended Fundamental Transaction which has not been abandoned, terminated or consummated, (B) an Event of Default or
(C) an event that with the passage of time or giving of notice would constitute an Event of Default; (vii) the Company shall have no knowledge of any fact that would cause any shares of Common Stock issuable upon conversion of

  
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the Notes and shares of Common Stock issuable upon exercise of the Warrants not to be eligible for sale without restriction pursuant to Rule 144 and without the requirement to be in compliance
with Rule 144(c)(1) (or any successor thereto) promulgated under the 1933 Act or Section 1145 of the Bankruptcy Code and any applicable state securities laws and (viii) the Company otherwise shall have been in compliance with and shall not
have materially breached any provision, covenant, representation or warranty of any Transaction Document which remains uncured. 
 (q) “Equity Conditions Failure” means that on any day during the period commencing ten (10) Trading Days prior to the applicable date of determination through the applicable date of
determination, the Equity Conditions have not been satisfied (or waived in writing by the Holder). 
 (r) “Excluded
Securities” means any shares of Common Stock issued or issuable: (i) in connection with any Approved Stock Plan; (ii) upon exercise of the Warrants or conversion of the Other Notes; provided that the terms of such Warrants and
Other Notes are not amended, modified or changed on or after the Subscription Date other than pursuant to Section 2(b) of the Warrant and other than pursuant to any anti-dilution provisions of this Note, the Other Notes, or the Warrants,
(iii) upon conversion or exercise of any Options or Convertible Securities which are outstanding on the day immediately preceding the Subscription Date, provided that the exercise prices or conversion prices of such Options or Convertible
Securities are not decreased and the number of shares issuable upon exercise or conversion are not increased other than in accordance with their terms, (iv) in connection with mergers, acquisitions, strategic business partnerships (including
without limitation license, distribution, or development partnerships), or joint ventures, in each case with non-affiliated third parties and otherwise on an arm’s-length basis, the purpose of which is not to raise additional capital; provided
that any Common Stock issued or issuable in connection with any transaction contemplated by this clause (iv) that is either (A) attributable to capital raising for the Company or its Subsidiaries (other than nominal amounts of capital) or
(B) to raise capital for the Company or its Subsidiaries, directly or indirectly, in order to fund any transaction contemplated by this clause (iv), including, without limitation, securities issued in one or more related transactions or that
result in similar economic consequences, shall not be deemed to be Excluded Securities or (v) pursuant to or in accordance with the Plan. 
 (s) “Fundamental Transaction” means that (A) the Company shall, directly or indirectly, in one or more related transactions, (i) consolidate or merge with or into (whether or
not the Company is the surviving corporation) another Person or Persons, or (ii) sell, assign, transfer, convey or otherwise dispose of all or substantially all of the properties or assets of the Company to another Person, or (iii) allow
another Person to make a purchase, tender or exchange offer that is accepted by the holders of more than the 50% of the outstanding shares of Voting Stock (not including any shares of Voting Stock held by the Person or Persons making or party to, or
associated or affiliated with the Persons making or party to, such purchase, tender or exchange offer), or (iv) consummate a stock purchase agreement or other business combination (including, without limitation, a reorganization,
recapitalization, spin-off or scheme of arrangement) with another Person whereby such other Person acquires more than the 50% of the outstanding shares of Voting Stock (not including any shares of Voting Stock held by the other Person or other
Persons making or party to, or associated or affiliated with the other Persons making or party to, such stock purchase agreement or other business combination), or (v) reorganize, recapitalize or reclassify its Common Stock or (B) any
“person” or “group” (as these 

  
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terms are used for purposes of Sections 13(d) and 14(d) of the Exchange Act) is or shall become the “beneficial owner” (as defined in Rule 13d-3 under the Exchange Act), directly or
indirectly, of 50% of the aggregate ordinary voting power represented by issued and outstanding Common Stock. Notwithstanding the foregoing, the term “Fundamental Transaction” shall not include any issuance of securities or any other
transaction contemplated to occur at the Effective Date pursuant to the Company’s Plan of Reorganization. 
 (t)
“GAAP” means United States generally accepted accounting principles, consistently applied. 
 (u)
“Holder Pro Rata Amount” means a fraction (i) the numerator of which is the Principal amount of this Note on the Closing Date and (ii) the denominator of which is the aggregate principal amount of all Notes issued to the
initial purchasers pursuant to the Securities Purchase Agreement on the Closing Date. 
 (v) “Indebtedness” of
any Person means, without duplication (i) all indebtedness for borrowed money, (ii) all obligations issued, undertaken or assumed as the deferred purchase price of property or services, including (without limitation) “capital
leases” in accordance with GAAP (other than trade payables entered into in the ordinary course of business), (iii) all reimbursement or payment obligations with respect to letters of credit, surety bonds and other similar instruments,
(iv) all obligations evidenced by notes, bonds, debentures or similar instruments, including obligations so evidenced incurred in connection with the acquisition of property, assets or businesses, (v) all indebtedness created or arising
under any conditional sale or other title retention agreement, or incurred as financing, in either case with respect to any property or assets acquired with the proceeds of such indebtedness (even though the rights and remedies of the seller or bank
under such agreement in the event of default are limited to repossession or sale of such property), (vi) all monetary obligations under any leasing or similar arrangement which, in connection with GAAP, consistently applied for the periods
covered thereby, is classified as a capital lease, (vii) all indebtedness referred to in clauses (i) through (vi) above secured by (or for which the holder of such Indebtedness has an existing right, contingent or otherwise, to be
secured by) any mortgage, lien, pledge, charge, security interest or other encumbrance upon or in any property or assets (including accounts and contract rights) owned by any Person, even though the Person which owns such assets or property has not
assumed or become liable for the payment of such indebtedness, and (viii) all Contingent Obligations in respect of indebtedness or obligations of others of the kinds referred to in clauses (i) through (vii) above. 

(w) “Interest Conversion Price” means the lower of (i) the applicable Conversion Price and (ii) the price
computed as 90% of the arithmetic average of the Weighted Average Price of the Common Stock over the ten (10) consecutive Trading Day period immediately preceding the Interest Date. All such determinations shall be appropriately adjusted for
any stock split, stock dividend, stock combination or other similar transaction during such period. 
 (x) “Interest
Rate” means 7.00% per annum, subject to adjustment as set forth in Section 2. 

  
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 (y)
“Mandatory Conversion Volume Limitation” means 20% of the aggregate dollar trading volume (as reported on Bloomberg) of the Common Stock on the Principal Market over the twenty (20) consecutive Trading Day period immediately
prior to the applicable Mandatory Conversion Notice Date. 
 (z) “Make-Whole Amount” means, as to any
Conversion Amount on any Conversion Date (including the Mandatory Conversion Date), as to any Event of Default Redemption on any Event of Default Redemption Date, as to any Change of Control Redemption on any Change of Control Redemption Date or as
to any Company Optional Redemption Price on any Company Optional Redemption Date, the amount equal to any Interest that, but for (i) the Holder’s exercise of its conversion right pursuant to Section 3(c), (ii) an Event of Default
Redemption pursuant to Section 4(b), (iii) a Change of Control Redemption pursuant to Section 5(b), or (iv) a Company Optional Redemption pursuant to Section 11(a), would have accrued with respect to the Conversion Amount
being converted or redeemed under this Note at the Interest Rate (assuming the Interest Rate then in effect as of the applicable Conversion Date, Event of Default Redemption Notice Date, Change of Control Redemption Notice Date or Company Option
Redemption Notice Date, as the case may be, is the Interest Rate through the Maturity Date) for the period from the applicable Conversion Date, Event of Default Redemption Date, Change of Control Redemption Date or the Company Optional Redemption
Date, as the case may be, through the earlier of the one (1) year anniversary of such date or the Maturity Date. 
 (aa)
“Options” means any rights, warrants or options to subscribe for or purchase shares of Common Stock or Convertible Securities. 
 (bb) “Option Value” means the value of an Option based on the Black and Scholes Option Pricing model obtained from the “OV” function on Bloomberg determined as of the day prior
to the issuance of the applicable Option for pricing purposes and reflecting (i) a risk-free interest rate corresponding to the U.S. Treasury rate for a period equal to the remaining term of the applicable Option as of the applicable date of
determination, (ii) an expected volatility equal to the greater of 100% and the 100 day volatility obtained from the HVT function on Bloomberg as of the day immediately prior to the public announcement of the applicable issuance, or if not
publicly announced, as of the day immediately prior to the issuance of the applicable Option, (iii) the underlying price per share used in such calculation shall be the highest Weighted Average Price during the period beginning on the day prior
to the execution of definitive documentation relating to the issuance of the applicable Option and the public announcement of such issuance and (iv) a 360 day annualization factor. 

(cc) “Parent Entity” of a Person means an entity that, directly or indirectly, controls the applicable Person and whose
common stock or equivalent equity security is quoted or listed on an Eligible Market, or, if there is more than one such Person or Parent Entity, the Person or Parent Entity with the largest public market capitalization as of the date of
consummation of the Fundamental Transaction. 
 (dd) “Permitted Indebtedness” means (i) Indebtedness
evidenced by this Note and the Other Notes, (ii) unsecured Indebtedness incurred by the Company that is made expressly subordinate in right of payment to the Indebtedness evidenced by this Note, as reflected in a written agreement acceptable to
the Required Holders and approved by the Required Holders 

  
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in writing, and which Indebtedness does not provide at any time for (A) the payment, prepayment, repayment, repurchase or defeasance, directly or indirectly, of any principal or premium, if
any, thereon until ninety-one (91) days after the Maturity Date or later and (B) total interest and fees at a rate in excess of 10.00% per annum; (iii) Indebtedness secured by Permitted Liens described in clauses (iv) and
(v) of the definition of Permitted Liens; (iv) Indebtedness described on Schedule 3(s)(ii) of the Securities Purchase Agreement; and (v) Indebtedness to Corps Real, LLC as approved by the orders of the Bankruptcy Court.

 (ee) “Permitted Liens” means (i) any Lien for taxes not yet due or delinquent or being contested in
good faith by appropriate proceedings for which adequate reserves have been established in accordance with GAAP, (ii) any statutory Lien arising in the ordinary course of business by operation of law with respect to a liability that is not yet
due or delinquent, (iii) any Lien created by operation of law, such as materialmen’s liens, mechanics’ liens and other similar liens, arising in the ordinary course of business with respect to a liability that is not yet due or
delinquent or that are being contested in good faith by appropriate proceedings, (iv) Liens (A) upon or in any equipment acquired or held by the Company or any of its Subsidiaries to secure the purchase price of such equipment or
indebtedness incurred solely for the purpose of financing the acquisition or lease of such equipment, or (B) existing on such equipment at the time of its acquisition, provided that the Lien is confined solely to the property so acquired and
improvements thereon, and the proceeds of such equipment, (v) Liens incurred in connection with the extension, renewal or refinancing of the indebtedness secured by Liens of the type described in clause (iv) above, provided that any
extension, renewal or replacement Lien shall be limited to the property encumbered by the existing Lien and the principal amount of the Indebtedness being extended, renewed or refinanced does not increase, (vi) leases or subleases and licenses
and sublicenses granted to others in the ordinary course of the Company’s business, not interfering in any material respect with the business of the Company and its Subsidiaries taken as a whole, (vii) Liens in favor of customs and revenue
authorities arising as a matter of law to secure payments of custom duties in connection with the importation of goods; (viii) Liens arising from judgments, decrees or attachments in circumstances not constituting an Event of Default under
Section 4(a)(ix); and (ix) Liens in favor of Laurus Master Fund, Ltd. and its Affiliates, Corps Real, LLC, Accentia Biopharmaceuticals, Inc. and the holders of the 15% Secured Convertible Debentures in a principal amount of $1.15 million
issued on September 22, 2008. Notwithstanding the foregoing, Permitted Liens shall not include any Liens imposed on the Collateral. 
 (ff) “Person” means an individual, a limited liability company, a partnership, a joint venture, a corporation, a trust, an unincorporated organization, any other entity and a government
or any department or agency thereof. 
 (gg) “Principal Market” means the OTCQX market tier operated by Pink
OTC Markets Inc. 
 (hh) “Redemption Notices” means, collectively, the Event of Default Redemption Notices,
the Change of Control Redemption Notices and the Company Optional Redemption Notice, each of the foregoing, individually, a Redemption Notice. 

  
 - 35 -

  
 (ii)
“Redemption Prices” means, collectively, the Event of Default Redemption Price, the Change of Control Redemption Price and the Company Optional Redemption Price , each of the foregoing, individually, a Redemption Price. 

(jj) “Related Fund” means, with respect to any Person, a fund or account managed by such Person or an Affiliate of such
Person. 
 (kk) “Required Holders” means the holders of Notes representing at least two-thirds of the
aggregate principal amount of the Notes then outstanding. 
 (ll) “SEC” means the United States Securities and
Exchange Commission. 
 (mm) “Securities Purchase Agreement” means that certain securities purchase agreement
dated as of the Subscription Date by and among the Company and the initial holders of the Notes pursuant to which the Company issued the Notes and Warrants. 
 (nn) “Subscription Date” means October 19, 2010. 
 (oo)
“Successor Entity” means the Person, which may be the Company, formed by, resulting from or surviving any Fundamental Transaction or the Person with which such Fundamental Transaction shall have been made, provided that if such
Person is not a publicly traded entity whose common stock or equivalent equity security is quoted or listed for trading on an Eligible Market, Successor Entity shall mean such Person’s Parent Entity. 

(pp) “Trading Day” means any day on which the Common Stock is traded on the Principal Market, or, if the Principal
Market is not the principal trading market for the Common Stock, then on the principal securities exchange or securities market on which the Common Stock is then traded; provided that “Trading Day” shall not include any day on which the
Common Stock is scheduled to trade on such exchange or market for less than 4.5 hours or any day that the Common Stock is suspended from trading during the final hour of trading on such exchange or market (or if such exchange or market does not
designate in advance the closing time of trading on such exchange or market, then during the hour ending at 4:00:00 p.m., New York Time). 
 (qq) “Voting Stock” of a Person means capital stock of such Person of the class or classes pursuant to which the holders thereof have the general voting power to elect, or the general
power to appoint, at least a majority of the board of directors, managers or trustees of such Person (irrespective of whether or not at the time capital stock of any other class or classes shall have or might have voting power by reason of the
happening of any contingency). 
 (rr) “Warrants” has the meaning ascribed to such term in the Securities
Purchase Agreement, and shall include all warrants issued in exchange therefor or replacement thereof. 
 (ss)
“Weighted Average Price” means, for any security as of any date, the dollar volume-weighted average price for such security on the Principal Market during the period beginning at 9:30:01 a.m., New York Time (or such other time as
the Principal Market 

  
 - 36 -

 
publicly announces is the official open of trading), and ending at 4:00:00 p.m., New York Time (or such other time as the Principal Market publicly announces is the official close of trading) as
reported by Bloomberg through its “Volume at Price” functions, or, if the foregoing does not apply, the dollar volume-weighted average price of such security in the over-the-counter market on the electronic bulletin board for such security
during the period beginning at 9:30:01 a.m., New York Time (or such other time as such market publicly announces is the official open of trading), and ending at 4:00:00 p.m., New York Time (or such other time as such market publicly announces is the
official close of trading) as reported by Bloomberg, or, if no dollar volume-weighted average price is reported for such security by Bloomberg for such hours, the average of the highest closing bid price and the lowest closing ask price of any of
the market makers for such security as reported in the “pink sheets” by Pink Sheets LLC (formerly the National Quotation Bureau, Inc.). If the Weighted Average Price cannot be calculated for a security on a particular date on any of the
foregoing bases, the Weighted Average Price of such security on such date shall be the fair market value as mutually determined by the Company and the Holder. If the Company and the Holder are unable to agree upon the fair market value of such
security, then such dispute shall be resolved pursuant to Section 22. All such determinations shall be appropriately adjusted for any stock dividend, stock split, stock combination, reclassification or similar transaction during the applicable
calculation period. 
 (31) DISCLOSURE. Upon receipt or delivery by the Company of any notice in accordance with the
terms of this Note, unless the Company has in good faith determined that the matters relating to such notice do not constitute material, nonpublic information relating to the Company or its Subsidiaries, the Company shall within one
(1) Business Day after any such receipt or delivery publicly disclose such material, nonpublic information on a Current Report on Form 8-K or otherwise. In the event that the Company believes that a notice contains material, nonpublic
information relating to the Company or its Subsidiaries, the Company so shall indicate to such Holder contemporaneously with delivery of such notice, and in the absence of any such indication, the Holder shall be allowed to presume that all matters
relating to such notice do not constitute material, nonpublic information relating to the Company or its Subsidiaries. 

[Signature Page Follows] 

  
 - 37 -

  
 IN WITNESS WHEREOF,
the Company has caused this Note to be duly executed as of the Issuance Date set out above. 
  

			
	BIOVEST INTERNATIONAL, INC., Debtor In Possession
		
	By:	 	  

		 	Name:
		 	Title:

  
 EXHIBIT I

 BIOVEST INTERNATIONAL, INC. 
 CONVERSION NOTICE 
 Reference is made to the Convertible Note (the “Note”)
issued to the undersigned by Biovest International, Inc., a Delaware corporation (the “Company”). In accordance with and pursuant to the Note, the undersigned hereby elects to convert the Conversion Amount (as defined in the Note)
of the Note indicated below into shares of Common Stock par value par value $0.01 per share (the “Common Stock”) of the Company, as of the date specified below. 

 

			
	 Date of Conversion:
	 	  

			
		
	 Aggregate Conversion Amount to be converted:
	 	  

	
	
	Please confirm the following information:

			
		
	 Conversion Price:
	 	  

			
		
	 Number of shares of Common Stock to be issued:
	 	  

	
	
	 Is the Variable Price Formulation being relied on pursuant to Section 7(a)(vi)? (check one)
YES        NO        

	
	Please issue the Common Stock into which the Note is being converted in the following name and to the following
address:

			
		
	 Issue to:
	 	  

		
		 	  

		
		 	  

			
		
	 Facsimile Number:
	 	  

			
		
	 Authorization:
	 	  

			
		
	 By:
	 	  

			
		
	 Title:
	 	  

			
		
	Dated:	 	  

  

			
	 Account Number:
	  	  

	
	   (if electronic book entry transfer)

			
		
	 Transaction Code Number:
	 	  

	
	   (if electronic book entry transfer)

  
 ACKNOWLEDGMENT

 The Company hereby acknowledges this Conversion Notice and hereby directs StockTrans, Inc. to issue the above indicated
number of shares of Common Stock in accordance with the Transfer Agent Instructions dated                 , 2010 from the Company and acknowledged and agreed to
by StockTrans, Inc. 
  

			
	BIOVEST INTERNATIONAL, INC.
		
	By:	 	  

		 	Name:
		 	Title:

  
 Exhibit A-2 

[FORM OF CONVERTIBLE NOTE] 
 BIOVEST INTERNATIONAL, INC. 

CONVERTIBLE NOTE 
  

			
	Issuance Date: [                ], 2010	 	Original Principal Amount: U.S. $[                ]

FOR VALUE RECEIVED, Biovest International, Inc., a Delaware corporation (the “Company”), hereby promises to pay
to [BUYER] or registered assigns (the “Holder”) the amount set out above as the Original Principal Amount (as reduced pursuant to the terms hereof pursuant to redemption, conversion or otherwise, the “Principal”)
when due, whether upon the Maturity Date (as defined below), acceleration, redemption, conversion or otherwise (in each case in accordance with the terms hereof) and to pay interest (“Interest”) on any outstanding Principal at the
Interest Rate from the date identified above as the Issuance Date (the “Issuance Date”) until the same becomes due and payable, whether upon an Interest Date (as defined below), the Maturity Date, acceleration, conversion,
redemption or otherwise (in each case in accordance with the terms hereof). This Convertible Note (including all Convertible Notes issued in exchange, transfer or replacement hereof, this “Note”) is one of an issue of Convertible
Notes (collectively, the “Notes” and such other Convertible Notes, the “Other Notes”) issued on the Closing Date pursuant to the Securities Purchase Agreement (as defined below). Certain capitalized terms used
herein are defined in Section 30. 
 (1) PAYMENTS OF PRINCIPAL. On the Maturity Date, the
Company shall pay to the Holder an amount in cash representing all outstanding Principal and accrued and unpaid Interest. The “Maturity Date” shall be
[                ], 20121, as may be extended at the option of the
Holder (i) in the event that, and for so long as, an Event of Default (as defined in Section 4(a)) shall have occurred and be continuing on the Maturity Date (as may be extended pursuant to this Section 1) or any event shall have
occurred and be continuing on the Maturity Date (as may be extended pursuant to this Section 1) that with the passage of time and the failure to cure would result in an Event of Default and (ii) through the date that is ten
(10) Business Days after the consummation of a Change of Control in the event that a Change of Control is publicly announced or a Change of Control Notice (as defined in Section 5(b)) is delivered prior to the Maturity Date. Other than as
specifically permitted by this Note, the Company may not prepay any portion of the outstanding Principal and accrued and unpaid Interest. 
 (2) INTEREST; INTEREST RATE. (a) Interest on this Note shall commence accruing on the Issuance Date and shall be computed on the basis of a 360-day year and twelve 30-day months and shall be
payable in arrears on the first calendar day of each succeeding month after the Issuance Date (each, an “Interest Date”) with the first Interest Date being December 1, 2010. Interest shall be payable on each Interest Date, to
the record holder of this Note on the applicable Interest Date, in shares of Common Stock (“Interest Shares”) so long as there has been no Equity Conditions Failure; provided however, that the Company may, at its option following

  

	1	 Insert second anniversary of the Effective Date of the Plan. 

 
notice to the Holder, pay Interest on any Interest Date in cash (“Cash Interest”) or in a combination of Cash Interest and Interest Shares. The Company shall deliver a written
notice to each holder of the Notes on or prior to the twenty-fifth (25th) Trading Day prior to the applicable Interest Date (the date such notice is delivered to all of the holders of Notes, the “Interest Notice Date”) which
notice (i) either (A) confirms that Interest to be paid on such Interest Date shall be paid entirely in Interest Shares or (B) elects to pay Interest as Cash Interest or a combination of Cash Interest and Interest Shares and specifies
the amount of Interest that shall be paid as Cash Interest and the amount of Interest, if any, that shall be paid in Interest Shares and (ii) certifies that the Equity Conditions are satisfied as of such Interest Notice Date; provided that the
Company must simultaneously take the same action in the same proportion with respect to the Other Notes. If the Equity Conditions are not satisfied as of the Interest Notice Date, then unless the Company has elected to pay such Interest as Cash
Interest, the Interest Notice shall indicate that unless the Holder waives the Equity Conditions, the Interest shall be paid as Cash Interest. If the Equity Conditions were satisfied as of the Interest Notice Date but the Equity Conditions are no
longer satisfied at any time prior to the Interest Date, the Company shall provide the Holder a subsequent notice to that effect indicating that unless the Holder waives the Equity Conditions, the Interest shall be paid as Cash Interest. Interest to
be paid on an Interest Date in Interest Shares shall be paid in a number of fully paid and nonassessable shares (rounded up to the nearest whole share in accordance with Section 3(a)) of Common Stock equal to the quotient of (1) the amount
of Interest payable on such Interest Date less any Cash Interest paid on such Interest Date and (2) the Interest Conversion Price in effect on the applicable Interest Date. 

(b) When any Interest Shares are to be paid on an Interest Date, the Company shall (i) (A) provided that the Company’s
transfer agent (the “Transfer Agent”) is participating in the Depository Trust Company (“DTC”) Fast Automated Securities Transfer Program, credit such aggregate number of Interest Shares to which the Holder shall be
entitled to the Holder’s or its designee’s balance account with DTC through its Deposit Withdrawal Agent Commission system, or (B) if the Transfer Agent is not participating in the DTC Fast Automated Securities Transfer Program, issue
and deliver on the applicable Interest Date, to the address set forth in the register maintained by the Company for such purpose pursuant to the Securities Purchase Agreement or to such address as specified by the Holder in writing to the Company at
least two (2) Business Days prior to the applicable Interest Date, a certificate, registered in the name of the Holder or its designee, for the number of Interest Shares to which the Holder shall be entitled and (ii) with respect to each
Interest Date, pay to the Holder, in cash by wire transfer of immediately available funds, the amount of any Cash Interest. 

(c) From and after the occurrence and during the continuance of an Event of Default, the Interest Rate shall be increased to fifteen
percent (15.0%) per annum. In the event that such Event of Default is subsequently cured, the adjustment referred to in the preceding sentence shall cease to be effective as of the date of such cure; provided that the Interest as calculated and
unpaid at such increased rate during the continuance of such Event of Default shall continue to apply to the extent relating to the days after the occurrence of such Event of Default through and including the date of cure of such Event of Default.
The Company shall pay any and all transfer, stamp, and similar taxes that may be payable with respect to the issuance and delivery of Interest Shares. 

  
 - 2 -

  
 (3) CONVERSION OF
NOTES. This Note shall be convertible into shares of the Company’s common stock, par value $0.01 per share (the “Common Stock”), on the terms and conditions set forth in this Section 3. 

(a) Conversion Right. Subject to the provisions of Section 3(d), at any time or times on or after the date hereof, the
Holder shall be entitled to convert any portion of the outstanding and unpaid Conversion Amount (as defined below) into fully paid and nonassessable shares of Common Stock in accordance with Section 3(c), at the Conversion Rate (as defined
below). The Company shall not issue any fraction of a share of Common Stock upon any conversion. If the issuance would result in the issuance of a fraction of a share of Common Stock, the Company shall round such fraction of a share of Common Stock
up to the nearest whole share. The Company shall pay any and all transfer, stamp and similar taxes that may be payable with respect to the issuance and delivery of Common Stock upon conversion of any Conversion Amount. 

(b) Conversion Rate. The number of shares of Common Stock issuable upon conversion of any Conversion Amount pursuant to
Section 3(a) shall be determined by dividing (x) such Conversion Amount by (y) the Conversion Price (the “Conversion Rate”). 
 (i) “Conversion Amount” means the sum of (A) the portion of the Principal to be converted, redeemed or otherwise with respect to which this determination is being made, and
(B) accrued and unpaid Interest with respect to such Principal. 
 (ii) “Conversion Price”
means, as of any Conversion Date (as defined below) or other date of determination, $0.91, subject to adjustment as provided herein. 
 (c) Mechanics of Conversion. 
 (i) Optional
Conversion. To convert any Conversion Amount into shares of Common Stock on any date (a “Conversion Date”), the Holder shall (A) transmit by facsimile (or otherwise deliver), for receipt on or prior to 11:59 p.m., New York
time, on such date, a copy of an executed notice of conversion in the form attached hereto as Exhibit I (the “Conversion Notice”) to the Company and the Transfer Agent and (B) if required by Section 3(c)(iv),
surrender this Note to a common carrier for delivery to the Company as soon as practicable on or following such date (or an indemnification undertaking with respect to this Note in the case of its loss, theft or destruction). On or before the first
(1st) Business Day following the date of receipt of a Conversion Notice, the Company shall transmit by facsimile a confirmation of receipt of such Conversion Notice to the Holder and the Transfer Agent. On or before the third (3rd) Trading
Day following the date of receipt of a Conversion Notice (the “Share Delivery Date”), the Company shall (x) provided that the Transfer Agent is participating in the DTC Fast Automated Securities Transfer Program, credit such
aggregate number of shares of Common Stock to which the Holder shall be entitled to the Holder’s or its designee’s balance account with DTC through its Deposit Withdrawal Agent Commission system or (y) if the Transfer Agent is not
participating in the DTC Fast Automated Securities Transfer Program, issue and deliver to 

  
 - 3 -

 
the address as specified in the Conversion Notice, a certificate, registered in the name of the Holder or its designee, for the number of shares of Common Stock to which the Holder shall be
entitled. If this Note is physically surrendered for conversion as required by Section 3(c)(iv) and the outstanding Principal of this Note is greater than the Principal portion of the Conversion Amount being converted, then the Company shall,
as soon as practicable and in no event later than five (5) Business Days after receipt of this Note and at its own expense, issue and deliver to the holder a new Note (in accordance with Section 17(d)) representing the outstanding
Principal not converted. The Person or Persons entitled to receive the shares of Common Stock issuable upon a conversion of this Note shall be treated for all purposes as the record holder or holders of such shares of Common Stock on the Conversion
Date. 
 (ii) Make-Whole Amount Upon Conversion. In addition to the foregoing, on each Share Delivery
Date, any applicable Make-Whole Amount on such Conversion Amount (the “Make-Whole Conversion Amount”) shall be paid to the Holder in shares of Common Stock (“Make-Whole Shares”) so long as there has been no Equity
Conditions Failure; provided however, that the Company may, at its option following notice to the Holder, pay such Make-Whole Conversion Amount in cash (“Make-Whole Cash”) or in a combination of Make-Whole Shares and Make-Whole
Cash. In the event that the Company desires to elect to pay any portion of its Make-Whole Conversion Amount as a Make-Whole Cash, then the Company shall deliver a written notice (“Make-Whole Notice”) to the Holder no later than one
(1) Trading Day following the receipt of the Conversion Notice by the Company (the “Make-Whole Notice Date”), which notice elects to pay the Make-Whole Conversion Amount in the form of a Make-Whole Cash or a combination of a
Make-Whole Cash and Make-Whole Shares and specifies the amount of the Make-Whole Conversion Amount that shall be paid as a Make-Whole Cash and the amount of Make-Whole Conversion Amount, if any, that shall be paid in Make-Whole Shares. If the Equity
Conditions are not satisfied as of the Conversion Date, then unless the Company has elected to pay such Make-Whole Conversion Amount as a Make-Whole Cash, the Make-Whole Notice shall indicate that unless the Holder waives the Equity Conditions, the
Make-Whole Conversion Amount shall be paid in the form of a Make-Whole Cash. If the Equity Conditions were satisfied as of the Conversion Date but the Equity Conditions are no longer satisfied at any time prior to the Share Delivery Date, the
Company shall provide the Holder a subsequent notice to that effect indicating that unless the Holder waives the Equity Conditions, the Make-Whole Conversion Amount shall be paid in the form of a Make-Whole Cash. The Make-Whole Conversion Amount to
be paid on such Share Delivery Date in Make-Whole Shares shall be paid in a number of fully paid and nonassessable shares of Common Stock (rounded to the nearest whole share in accordance with Section 3(a)) equal to the quotient of (1) the
Make-Whole Conversion Amount payable on the applicable Conversion Date less any Make-Whole Cash paid and (2) the Interest Conversion Price in effect on the applicable Conversion Date. Delivery of the Make-Whole Shares shall be made in the
manner set forth in Section 2(b)(i) of this Note replacing the terms “Interest Shares” with “Make-Whole Shares” and “Interest Date” with “Share Delivery Date.” 

(iii) Company’s Failure to Timely Convert. If the Company shall fail to issue a certificate to the Holder or
credit the Holder’s balance account with DTC, as 

  
 - 4 -

 
applicable, for the number of shares of Common Stock to which the Holder is entitled upon conversion of any Conversion Amount on or prior to the date which is three (3) Trading Days after
the Conversion Date (a “Conversion Failure”), then (A) the Company shall pay damages to the Holder for each Trading Day of such Conversion Failure in an amount equal to 1.5% of the product of (1) the sum of the number of
shares of Common Stock not issued to the Holder on or prior to the Share Delivery Date and to which the Holder is entitled, and (2) the Closing Sale Price of the Common Stock on the Share Delivery Date and (B) the Holder, upon written
notice to the Company, may void its Conversion Notice with respect to, and retain or have returned, as the case may be, any portion of this Note that has not been converted pursuant to such Conversion Notice; provided that the voiding of a
Conversion Notice shall not affect the Company’s obligations to make any payments which have accrued prior to the date of such notice pursuant to this Section 3(c)(iii) or otherwise. In addition to the foregoing, if within three
(3) Trading Days after the Company’s receipt of the facsimile copy of a Conversion Notice, the Company shall fail to issue and deliver a certificate to the Holder or credit the Holder’s balance account with DTC for the number of
shares of Common Stock to which the Holder is entitled upon such holder’s conversion of any Conversion Amount, and if on or after such Trading Day the Holder purchases (in an open market transaction or otherwise) Common Stock to deliver in
satisfaction of a sale by the Holder of Common Stock issuable upon such conversion that the Holder anticipated receiving from the Company (a “Buy-In”), then the Company shall, within five (5) Trading Days after the
Holder’s request and in the Holder’s discretion, either (i) pay cash to the Holder in an amount equal to the Holder’s total purchase price (including brokerage commissions and other out-of-pocket expenses, if any) for the shares
of Common Stock so purchased (the “Buy-In Price”), at which point the Company’s obligation to deliver such certificate (and to issue such Common Stock) shall terminate, or (ii) promptly honor its obligation to deliver to
the Holder a certificate or certificates representing such Common Stock and pay cash to the Holder in an amount equal to the excess (if any) of the Buy-In Price over the product of (A) such number of shares of Common Stock, times (B) the
Closing Bid Price on the Conversion Date. 
 (iv) Registration; Book-Entry. The Company shall maintain a
register (the “Register”) for the recordation of the names and addresses of the holders of each Note and the principal amount of the Notes held by such holders (the “Registered Notes”). The entries in the Register
shall be conclusive and binding for all purposes absent manifest error. The Company and the holders of the Notes shall treat each Person whose name is recorded in the Register as the owner of a Note for all purposes, including, without limitation,
the right to receive payments of Principal and Interest, if any, hereunder, notwithstanding notice to the contrary. A Registered Note may be assigned or sold in whole or in part only by registration of such assignment or sale on the Register. Upon
its receipt of a request to assign or sell all or part of any Registered Note by a Holder, the Company shall record the information contained therein in the Register and issue one or more new Registered Notes in the same aggregate principal amount
as the principal amount of the surrendered Registered Note to the designated assignee or transferee pursuant to Section 17. Notwithstanding anything to the contrary in this Section 3(c)(iv), a Holder may assign any Note or any portion
thereof to an Affiliate of such Holder or a Related Fund of such Holder without delivering a request to assign or sell such Note to the Company and the recordation of such assignment or sale in the Register (a “Related Party

  
 - 5 -

 
Assignment”); provided, that (x) the Company may continue to deal solely with such assigning or selling Holder unless and until such Holder has delivered a request
to assign or sell such Note or portion thereof to the Company for recordation in the Register; (y) the failure of such assigning or selling Holder to deliver a request to assign or sell such Note or portion thereof to the Company shall not
affect the legality, validity, or binding effect of such assignment or sale; and (z) such assigning or selling Holder shall, acting solely for this purpose as a non-fiduciary agent of the Company, maintain a register (the “Related Party
Register”) comparable to the Register on behalf of the Company, and any such assignment or sale shall be effective upon recordation of such assignment or sale in the Related Party Register. Notwithstanding anything to the contrary set forth
herein, upon conversion of any portion of this Note in accordance with the terms hereof, the Holder shall not be required to physically surrender this Note to the Company unless (A) the full Conversion Amount represented by this Note is being
converted or (B) the Holder has provided the Company with prior written notice (which notice may be included in a Conversion Notice) requesting physical surrender and reissue of this Note. The Holder and the Company shall maintain records
showing the Principal and Interest converted and the dates of such conversions or shall use such other method, reasonably satisfactory to the Holder and the Company, so as not to require physical surrender of this Note upon conversion. 

(v) Pro Rata Conversion; Disputes. In the event that the Company receives a Conversion Notice from more than one
holder of Notes for the same Conversion Date and the Company can convert some, but not all, of such portions of the Notes submitted for conversion, the Company, subject to Section 3(d), shall convert from each holder of Notes electing to have
Notes converted on such date a pro rata amount of such holder’s portion of its Notes submitted for conversion based on the principal amount of Notes submitted for conversion on such date by such holder relative to the aggregate principal amount
of all Notes submitted for conversion on such date. In the event of a dispute as to the number of shares of Common Stock issuable to the Holder in connection with a conversion of this Note, the Company shall issue to the Holder the number of shares
of Common Stock not in dispute and resolve such dispute in accordance with Section 22. 
 (d) Limitations on
Conversions; Beneficial Ownership. The Company shall not effect any conversion of this Note, and the Holder of this Note shall not have the right to convert any portion of this Note pursuant to Section 3(a), to the extent that after giving
effect to such conversion, the Holder (together with the Holder’s Affiliates) would beneficially own in excess of 4.99% (the “Maximum Percentage”) of the number of shares of Common Stock outstanding immediately after giving
effect to such conversion. For purposes of the foregoing sentence, the number of shares of Common Stock beneficially owned by the Holder and its Affiliates shall include the number of shares of Common Stock issuable upon conversion of this Note with
respect to which the determination of such sentence is being made, but shall exclude the number of shares of Common Stock which would be issuable upon (A) conversion of the remaining, nonconverted portion of this Note beneficially owned by the
Holder or any of its Affiliates and (B) exercise or conversion of the unexercised or nonconverted portion of any other securities of the Company (including, without limitation, any Other Notes or warrants) subject to a limitation on conversion
or exercise analogous to the limitation contained herein beneficially owned by the Holder or any of its Affiliates. Except as set forth in the preceding sentence, for 

  
 - 6 -

 
purposes of this Section 3(d), beneficial ownership shall be calculated in accordance with Section 13(d) of the Securities Exchange Act of 1934, as amended (the “Exchange
Act”). For purposes of this Section 3(d), in determining the number of outstanding shares of Common Stock, the Holder may rely on the number of outstanding shares of Common Stock as reflected in (x) the Company’s most recent
Form 10-K, Form 10-Q or Form 8-K, as the case may be, (y) a more recent public announcement by the Company or (z) any other notice by the Company or the Transfer Agent setting forth the number of shares of Common Stock outstanding. For any
reason at any time, upon the written or oral request of the Holder, the Company shall within one (1) Business Day confirm orally and in writing to the Holder the number of shares of Common Stock then outstanding. In any case, the number of
outstanding shares of Common Stock shall be determined after giving effect to the conversion or exercise of securities of the Company, including this Note, by the Holder or its Affiliates since the date as of which such number of outstanding shares
of Common Stock was reported. By written notice to the Company, the Holder may increase or decrease the Maximum Percentage to any other percentage not in excess of 9.99% specified in such notice; provided that (i) any such increase will not be
effective until the sixty-first (61st) day after such
notice is delivered to the Company, and (ii) any such increase or decrease will apply only to the Holder and not to any other holder of Notes. The provisions of this paragraph shall be construed and implemented in a manner otherwise than in
strict conformity with the terms of this Section 3(d) to correct this paragraph (or any portion hereof) which may be defective or inconsistent with the intended beneficial ownership limitation herein contained or to make changes or supplements
necessary or desirable to properly give effect to such limitation. 
 (4) RIGHTS UPON EVENT OF DEFAULT. 

(a) Event of Default. Each of the following events shall constitute an “Event of Default”: 

(i) the failure of any shares of Common Stock issued or issuable upon conversion of the Notes to be freely transferable
and eligible for sale without restriction and without the need for registration under any applicable federal or state securities laws pursuant to Section 1145 of the Bankruptcy Code; 

(ii) the failure of the Common Stock to be listed or traded on at least one (1) Eligible Market for a period of five
(5) consecutive Trading Days or for more than an aggregate of ten (10) Trading Days in any 365-day period; 
 (iii) the Company’s (A) failure to cure a Conversion Failure by delivery of the required number of shares of Common Stock within ten (10) Business Days after the applicable Conversion Date
or (B) notice, written or oral, to any holder of the Notes, including by way of public announcement or through any of its agents, at any time, of its intention not to comply with a request for conversion of any Notes into shares of Common Stock
that is tendered in accordance with the provisions of the Notes; 
 (iv) at any time
following the tenth (10th) consecutive Business Day
that the Holder’s Authorized Share Allocation is less than the number of shares of Common Stock that the Holder would be entitled to receive upon a conversion of the full Conversion Amount of this Note (without regard to any limitations on
conversion set forth in Section 3(d) or otherwise); 

  
 - 7 -

  
 (v)
the Company’s failure to pay to the Holder any amount of Principal (including, without limitation, any redemption payments), Interest or other amounts when and as due under this Note or any other Transaction Document (as defined in the
Securities Purchase Agreement) or any other agreement, document, certificate or other instrument delivered in connection with the transactions contemplated hereby and thereby to which the Holder is a party, except (x) the failure to pay
Interest when and as due shall be an Event of Default only if such failure continues for a period of at least five (5) Business Days, and (y) the failure to pay any amount other than Principal and Interest when and as due shall be an Event
of Default only if such failure continues for a period of at least five (5) Business Days after the Company knew or should reasonably have known after due inquiry of the obligation to pay any such amount; 

(vi) the Company, pursuant to or within the meaning of Title 11, U.S. Code, or any similar Federal, foreign or state law
for the relief of debtors (collectively, “Bankruptcy Law”), (A) commences a voluntary case, (B) consents to the entry of an order for relief against it in an involuntary case, (C) consents to the appointment of a
receiver, trustee, assignee, liquidator or similar official (a “Custodian”), (D) makes a general assignment for the benefit of its creditors or (E) admits in writing that it is generally unable to pay its debts as they
become due; provided, however, that the foregoing shall not apply to the Company’s Chapter 11 Case; 

(vii) a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that (A) is for relief
against the Company in an involuntary case, (B) appoints a Custodian of the Company or (C) orders the liquidation of the Company; provided, however, that the foregoing shall not apply to the Company’s Chapter 11 Case; 

(viii) a final judgment or judgments for the payment of money aggregating in excess of $250,000 are rendered against the
Company and which judgments are not, within sixty (60) days after the entry thereof, bonded, discharged or stayed pending appeal, or are not discharged within sixty (60) days after the expiration of such stay; provided, however, that any
judgment which is covered by insurance or an indemnity from a creditworthy party shall not be included in calculating the $250,000 amount set forth above so long as the Company provides the Holder a written statement from such insurer or indemnity
provider (which written statement shall be reasonably satisfactory to the Holder) to the effect that such judgment is covered by insurance or an indemnity and the Company will receive the proceeds of such insurance or indemnity within thirty
(30) days of the issuance of such judgment; provided that no payments made on account of allowed claims pursuant to the terms of the Company’s Plan of Reorganization and confirmation order entered by the Bankruptcy Court relating to the
Company’s Chapter 11 Case shall constitute an Event of Default; 
 (ix) the Company breaches any
representation, warranty, covenant or other term or condition of any Transaction Document, except, in the case of a breach of a covenant which is curable, only if such breach continues for a period of at least ten (10) consecutive Business
Days; 

  
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 (x)
any breach or failure in any respect to comply with Section 14 of this Note; 
 (xi) the aggregate number
of shares of Common Stock, on the date of the effectiveness of the Company’s Plan of Reorganization with respect to the Company’s Chapter 11 Case (“Chapter 11 Effectiveness”) after giving effect to the Chapter 11
Effectiveness, (A) issued or issuable shall, excluding the shares of Common Stock issued or issuable pursuant to the conversion or exercise of the Notes and Warrants, respectively, exceed 44,000,000 shares of Common Stock or (B) issued or
issuable that are both (1) not subject to Lock-Up Agreements (as defined in the Securities Purchase Agreement) and (2) issuable within ninety (90) days of the Chapter 11 Effectiveness, shall, excluding the shares of Common Stock
issued or issuable pursuant to the conversion or exercise of the Notes and Warrants, respectively, exceed 2,600,000 shares of Common Stock; 
 (xii) the aggregate amount of Indebtedness of the Company outstanding on the date of Chapter 11 Effectiveness after giving effect to the Chapter 11 Effectiveness (other than the Notes) shall exceed the
amount of Indebtedness set forth on the chart located at the end of Schedule 3(s)(ii) of the Securities Purchase Agreement; 
 (xiii) if a motion, request or application seeking relief from or revocation of the confirmation order entered by the Bankruptcy Court relating to the Company’s Chapter 11 Case has been filed under
Rule 59 or 60 of the Federal Rules of Civil Procedure, as made applicable through Federal Rules of Bankruptcy Procedure 9023 and 9024, respectively, or any analogous Federal Rule of Bankruptcy Procedure, or under 11 U.S.C. § 1144; or

 (xiv) any Event of Default (as defined in the Other Notes) occurs with respect to any Other Notes.

 (b) Redemption Right. Upon the occurrence of an Event of Default with respect to this Note or any Other Note, the
Company shall within one (1) Business Day deliver written notice thereof via facsimile and overnight courier (an “Event of Default Notice”) to the Holder. At any time after the earlier of the Holder’s receipt of an Event
of Default Notice and the Holder becoming aware of an Event of Default, the Holder may require the Company to redeem (an “Event of Default Redemption”) all or any portion of this Note by delivering written notice thereof (the
“Event of Default Redemption Notice”) to the Company, which Event of Default Redemption Notice shall indicate the portion of this Note the Holder is electing to redeem. Each portion of this Note subject to redemption by the Company
pursuant to this Section 4(b) shall be redeemed by the Company in cash at a price equal to 110% of the sum of (i) any Make-Whole Amount and (ii) the greater of (x) the Conversion Amount to be redeemed and (y) the product of
(A) the Conversion Rate in effect at such time as the Holder delivers an Event of Default Redemption Notice with respect to such Conversion Amount being redeemed and (B) the greatest Weighted Average Price of the Common Stock on any
Trading Day during the period 

  
 - 9 -

 
commencing on the date immediately preceding such Event of Default and ending on the date the Holder delivers the Event of Default Redemption Notice (the “Event of Default Redemption
Price”). Redemptions required by this Section 4(b) shall be made in accordance with the provisions of Section 12. To the extent redemptions required by this Section 4(b) are deemed or determined by a court of competent
jurisdiction to be prepayments of the Note by the Company, such redemptions shall be deemed to be voluntary prepayments. The parties hereto agree that in the event of the Company’s redemption of any portion of the Note under this
Section 4(b), the Holder’s damages would be uncertain and difficult to estimate because of the parties’ inability to predict future interest rates and the uncertainty of the availability of a suitable substitute investment opportunity
for the Holder. Accordingly, any Event of Default redemption premium due under this Section 4(b) is intended by the parties to be, and shall be deemed, a reasonable estimate of the Holder’s actual loss of its investment opportunity and not
as a penalty. 
 (5) RIGHTS UPON FUNDAMENTAL TRANSACTION AND CHANGE OF CONTROL. 

(a) Assumption. The Company shall not enter into or be party to a Fundamental Transaction unless (i) the Successor Entity
assumes in writing all of the obligations of the Company under this Note and the other Transaction Documents in accordance with the provisions of this Section 5(a) pursuant to written agreements in form and substance reasonably satisfactory to
the Required Holders and approved by the Required Holders prior to such Fundamental Transaction, including agreements to deliver to each holder of Notes in exchange for such Notes a security of the Successor Entity evidenced by a written instrument
substantially similar in form and substance to the Notes, including, without limitation, having a principal amount and interest rate equal to the principal amounts and the interest rates of the Notes then outstanding held by such holder, having
similar conversion rights and having similar ranking and security to the Notes, and satisfactory to the Required Holders and (ii) the Successor Entity (including its Parent Entity) is a publicly traded corporation whose common stock is quoted
on or listed for trading on an Eligible Market. Upon the occurrence of any Fundamental Transaction, the Successor Entity shall succeed to, and be substituted for (so that from and after the date of such Fundamental Transaction, the provisions of
this Note referring to the “Company” shall refer instead to the Successor Entity), and may exercise every right and power of the Company and shall assume all of the obligations of the Company under this Note with the same effect as if such
Successor Entity had been named as the Company herein. Upon consummation of the Fundamental Transaction, the Successor Entity shall deliver to the Holder confirmation that there shall be issued upon conversion or redemption of this Note at any time
after the consummation of the Fundamental Transaction, in lieu of the shares of the Company’s Common Stock (or other securities, cash, assets or other property) issuable upon the conversion or redemption of the Notes prior to such Fundamental
Transaction, such shares of the publicly traded common stock (or their equivalent) of the Successor Entity (including its Parent Entity), as adjusted in accordance with the provisions of this Note. The provisions of this Section shall apply
similarly and equally to successive Fundamental Transactions and shall be applied without regard to any limitations on the conversion or redemption of this Note. 
 (b) Redemption Right. No sooner than fifteen (15) days nor later than ten (10) days prior to the consummation of a Change of Control, but not prior to the public announcement of such
Change of Control, the Company shall deliver written notice thereof via 

  
 - 10 -

 
facsimile and overnight courier to the Holder (a “Change of Control Notice”). At any time during the period beginning after the Holder’s receipt of a Change of Control
Notice and ending twenty (20) Trading Days after the date of the consummation of such Change of Control, the Holder may require the Company to redeem (a “Change of Control Redemption”) all or any portion of this Note by
delivering written notice thereof (“Change of Control Redemption Notice”, and the date thereof, the “Change of Control Redemption Notice Date”) to the Company, which Change of Control Redemption Notice shall
indicate the Conversion Amount the Holder is electing to require the Company to redeem. The portion of this Note subject to redemption pursuant to this Section 5(b) shall be redeemed by the Company in cash at a price equal to 110% of the sum of
(i) any Make-Whole Amount and (ii) the greater of (x) the Conversion Amount to be redeemed and (y) the product of (A) the Conversion Rate in effect at such time as the Holder delivers a Change of Control Redemption Notice
with respect to such Conversion Amount being redeemed and (B) the greatest Weighted Average Price of the Common Stock during the period beginning on the date immediately preceding the earlier to occur of (1) the consummation of the Change
of Control and (2) the public announcement of such Change of Control and ending on the date the Holder delivers the Change of Control Redemption Notice (the “Change of Control Redemption Price”). Redemptions required by this
Section 5 shall be made in accordance with the provisions of Section 12 and shall have priority to payments to stockholders in connection with a Change of Control. To the extent redemptions required by this Section 5(b) are deemed or
determined by a court of competent jurisdiction to be prepayments of the Note by the Company, such redemptions shall be deemed to be voluntary prepayments. Notwithstanding anything to the contrary in this Section 5, but subject to
Section 3(d), until the Change of Control Redemption Price (together with any interest thereon) is paid in full, the Conversion Amount submitted for redemption under this Section 5(b) (together with any interest thereon) may be converted,
in whole or in part, by the Holder into Common Stock pursuant to Section 3. The parties hereto agree that in the event of the Company’s redemption of any portion of the Note under this Section 5(b), the Holder’s damages would be
uncertain and difficult to estimate because of the parties’ inability to predict future interest rates and the uncertainty of the availability of a suitable substitute investment opportunity for the Holder. Accordingly, any Change of Control
redemption premium due under this Section 5(b) is intended by the parties to be, and shall be deemed, a reasonable estimate of the Holder’s actual loss of its investment opportunity and not as a penalty. 

(6) DISTRIBUTION OF ASSETS; RIGHTS UPON ISSUANCE OF PURCHASE RIGHTS AND OTHER CORPORATE EVENTS. 

(a) Distribution of Assets. If the Company shall declare or make any dividend or other distributions of its assets (or rights to
acquire its assets) to any or all holders of shares of Common Stock, by way of return of capital or otherwise (including without limitation, any distribution of cash, stock or other securities, property or options by way of a dividend, spin off,
reclassification, corporate rearrangement, scheme of arrangement or other similar transaction) (the “Distributions”), the Company shall make appropriate provision to insure that upon a conversion of this Note, the Holder will
thereafter have the right to receive in addition to the shares of Common Stock receivable upon such conversion, such Distributions to which the Holder would have been entitled with respect to such shares of Common Stock had such shares of Common
Stock been held by the Holder immediately prior to the date on which a record is taken for such Distribution or, if no such record is taken, the date as of which the record holders of Common Stock are to be determined for such Distributions (without
taking into account any limitations or restrictions on the convertibility of this Note). 

  
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 (b) Purchase
Rights. If at any time the Company grants, issues or sells any Options, Convertible Securities or rights to purchase stock, warrants, securities or other property pro rata to the record holders of any class of Common Stock (the “Purchase
Rights”), then the Holder will be entitled to acquire, upon the terms applicable to such Purchase Rights, the aggregate Purchase Rights which the Holder could have acquired if the Holder had held the number of shares of Common Stock
acquirable upon complete conversion of this Note (without taking into account any limitations or restrictions on the convertibility of this Note) immediately prior to the date on which a record is taken for the grant, issuance or sale of such
Purchase Rights, or, if no such record is taken, the date as of which the record holders of shares of Common Stock are to be determined for the grant, issue or sale of such Purchase Rights. 

(c) Other Corporate Events. In addition to and not in substitution for any other rights hereunder, prior to the consummation of
any Fundamental Transaction pursuant to which holders of shares of Common Stock are entitled to receive securities or other assets with respect to or in exchange for shares of Common Stock (a “Corporate Event”), the Company shall
make appropriate provision to insure that the Holder will thereafter have the right to receive upon a conversion of this Note, (i) in addition to the shares of Common Stock receivable upon such conversion, such securities or other assets to
which the Holder would have been entitled with respect to such shares of Common Stock had such shares of Common Stock been held by the Holder upon the consummation of such Corporate Event (without taking into account any limitations or restrictions
on the convertibility of this Note) or (ii) in lieu of the shares of Common Stock otherwise receivable upon such conversion, such securities or other assets received by the holders of shares of Common Stock in connection with the consummation
of such Corporate Event in such amounts as the Holder would have been entitled to receive had this Note initially been issued with conversion rights for the form of such consideration (as opposed to shares of Common Stock) at a conversion rate for
such consideration commensurate with the Conversion Rate. Provision made pursuant to the preceding sentence shall be in a form and substance satisfactory to the Required Holders. The provisions of this Section shall apply similarly and equally to
successive Corporate Events and shall be applied without regard to any limitations on the conversion or redemption of this Note. 
 (7) RIGHTS UPON ISSUANCE OF OTHER SECURITIES. 
 (a) Adjustment of
Conversion Price upon Issuance of Common Stock. If and whenever on or after the Subscription Date, the Company issues or sells, or in accordance with this Section 7(a) is deemed to have issued or sold, any shares of Common Stock (excluding
Excluded Securities and shares of Common Stock deemed to have been issued or sold by the Company in connection with any Excluded Securities) for a consideration per share (the “New Issuance Price”) less than a price (the
“Applicable Price”) equal to the Conversion Price in effect immediately prior to such issue or sale or deemed issuance (the foregoing a “Dilutive Issuance”), then immediately after such Dilutive Issuance the
Conversion Price then in effect shall be reduced concurrently with such Dilutive Issuance to (A) in the event that the Dilutive Issuance is completed at a time during which at least one-third of the Original Principal Amount of the Notes
remains outstanding (the “Ratchet Period”), to the New Issuance Price, and (B) in the event that the 

  
 - 12 -

 
Dilutive Issuance is completed at a time that less than one-third of the Original Principal Amount of the Notes remain outstanding, an amount determined by multiplying the Conversion Price then
in effect by a fraction, (x) the numerator of which shall be the sum of (1) the number of shares of Common Stock Deemed Outstanding immediately prior to such Dilutive Issuance plus (2) the number of shares of Common Stock which the
aggregate consideration received by the Company for such additional shares in the Dilutive Issuance would purchase at the Conversion Price then in effect; and (y) the denominator of which shall be the number of shares of Common Stock Deemed
Outstanding immediately after such Dilutive Issuance but before giving effect to anti-dilution rights contained in other securities of the Company that would be triggered by the same Dilutive Issuance. For purposes of this paragraph, “Common
Stock Deemed Outstanding” shall mean at any given time, the number of shares of Common Stock outstanding at such time, plus the number of shares of Common Stock deemed to be outstanding pursuant to Sections 7(a)(i) and 7(a)(ii) hereof
regardless of whether the Options or Convertible Securities are actually exercisable at such time, but excluding any Common Stock owned or held by or for the account of the Company or issuable upon conversion or exercise, as applicable, of the Notes
and the Warrants. For purposes of determining the adjusted Conversion Price under this Section 7(a), the following shall be applicable: 
 (i) Issuance of Options. If the Company in any manner grants any Options and the lowest price per share for which one share of Common Stock is issuable upon the exercise of any such Option or upon
conversion, exercise or exchange of any Convertible Securities issuable upon exercise of any such Option is less than the Applicable Price, then such share of Common Stock shall be deemed to be outstanding and to have been issued and sold by the
Company at the time of the granting or sale of such Option for such price per share. For purposes of this Section 7(a)(i), the “lowest price per share for which one share of Common Stock is issuable upon exercise of such Options or upon
conversion, exercise or exchange of such Convertible Securities issuable upon exercise of any such Option” shall be equal to the sum of the lowest amounts of consideration (if any) received or receivable by the Company with respect to any one
share of Common Stock upon the granting or sale of the Option, upon exercise of the Option and upon conversion, exercise or exchange of any Convertible Security issuable upon exercise of such Option less any consideration paid or payable by the
Company with respect to such one share of Common Stock upon the granting or sale of such Option, upon exercise of such Option and upon conversion exercise or exchange of any Convertible Security issuable upon exercise of such Option. No further
adjustment of the Conversion Price shall be made upon the actual issuance of such shares of Common Stock or of such Convertible Securities upon the exercise of such Options or upon the actual issuance of such shares of Common Stock upon conversion,
exercise or exchange of such Convertible Securities. 
 (ii) Issuance of Convertible Securities. If the
Company in any manner issues or sells any Convertible Securities and the lowest price per share for which one share of Common Stock is issuable upon the conversion, exercise or exchange thereof is less than the Applicable Price, then such share of
Common Stock shall be deemed to be outstanding and to have been issued and sold by the Company at the time of the issuance or sale of such Convertible Securities for such price per share. For the purposes of this Section 7(a)(ii), the
“lowest price per share for which one share of Common Stock is issuable upon the conversion, exercise or exchange thereof” shall be equal to the sum of the 

  
 - 13 -

 
lowest amounts of consideration (if any) received or receivable by the Company with respect to one share of Common Stock upon the issuance or sale of the Convertible Security and upon conversion,
exercise or exchange of such Convertible Security less any consideration paid or payable by the Company with respect to such one share of Common Stock upon the issuance or sale of such Convertible Security and upon conversion, exercise or exchange
of such Convertible Security. No further adjustment of the Conversion Price shall be made upon the actual issuance of such shares of Common Stock upon conversion, exercise or exchange of such Convertible Securities, and if any such issue or sale of
such Convertible Securities is made upon exercise of any Options for which adjustment of the Conversion Price has been or is to be made pursuant to other provisions of this Section 7(a), no further adjustment of the Conversion Price shall be
made by reason of such issue or sale. 
 (iii) Change in Option Price or Rate of Conversion. If the
purchase price provided for in any Options issued after the Subscription Date, the additional consideration, if any, payable upon the issue, conversion, exercise or exchange of any Convertible Securities issued after the Subscription Date, or the
rate at which any Convertible Securities issued after the Subscription Date are convertible into or exercisable or exchangeable for shares of Common Stock increases or decreases at any time, the Conversion Price at the time of such increase or
decrease shall be adjusted to the Conversion Price which would have been in effect at such time had such Options or Convertible Securities provided for such increased or decreased purchase price, additional consideration or increased or decreased
conversion rate, as the case may be, at the time initially granted, issued or sold. Additionally, if the terms of any Option or Convertible Security that was outstanding as of the Subscription Date is increased or decreased in the manner described
in the immediately preceding sentence, then such Option or Convertible Security and the shares of Common Stock deemed issuable upon exercise, conversion or exchange thereof shall be deemed to have been issued as of the date of such increase or
decrease, but in such event the amount of the adjustment to the Conversion Price pursuant to this Section 7 will not be proportionately greater than the proportionate amount of the increase or decrease. No adjustment pursuant to this
Section 7(a) shall be made if such adjustment would result in an increase of the Conversion Price then in effect. 
 (iv) Calculation of Consideration Received. In case any Option is issued in connection with the issue or sale of other securities of the Company, together comprising one integrated transaction,
(x) the Options will be deemed to have been issued for the Option Value and (y) the other securities issued or sold in such integrated transaction shall be deemed to have been issued for the difference of (I) the aggregate
consideration received by the Company less any consideration paid or payable by the Company pursuant to the terms of such other securities of the Company, less (II) the Option Value. If any shares of Common Stock, Options or Convertible Securities
are issued or sold or deemed to have been issued or sold for cash, the consideration received therefor will be deemed to be the net amount received by the Company therefor. If any shares of Common Stock, Options or Convertible Securities are issued
or sold for a consideration other than cash, the amount of such consideration received by the Company will be the fair value of such consideration, except where such consideration consists of securities, in which case the amount of consideration
received by the Company will be the 

  
 - 14 -

 
Closing Sale Price of such security on the date of receipt. If any shares of Common Stock, Options or Convertible Securities are issued to the owners of the non-surviving entity in connection
with any merger in which the Company is the surviving entity, the amount of consideration therefor will be deemed to be the fair value of such portion of the net assets and business of the non-surviving entity as is attributable to such shares of
Common Stock, Options or Convertible Securities, as the case may be. The fair value of any consideration other than cash or securities will be determined jointly by the Company and the Required Holders. If such parties are unable to reach agreement
within ten (10) days after the occurrence of an event requiring valuation (the “Valuation Event”), the fair value of such consideration will be determined within five (5) Trading Days after the tenth (10th) day following the Valuation Event by an independent, reputable
appraiser jointly selected by the Company and the Required Holders. The determination of such appraiser shall be final and binding upon all parties absent manifest error and the fees and expenses of such appraiser shall be borne by the Company.

 (v) Record Date. If the Company takes a record of the holders of shares of Common Stock for the
purpose of entitling them (A) to receive a dividend or other distribution payable in shares of Common Stock, Options or in Convertible Securities or (B) to subscribe for or purchase shares of Common Stock, Options or Convertible
Securities, then such record date will be deemed to be the date of the issue or sale of the shares of Common Stock deemed to have been issued or sold upon the declaration of such dividend or the making of such other distribution or the date of the
granting of such right of subscription or purchase, as the case may be. 
 (vi) Variable-Priced
Securities. If the Company issues or sells, or in accordance with Section 7 is deemed to have issued or sold, any Options or Convertible Securities after the Issuance Date, that are convertible into or exchangeable or exercisable for shares
of Common Stock at a price which varies or may vary with the market price of the shares of Common Stock, including by way of one or more reset(s) to a fixed price (each of the formulations for such variable price being herein referred to as, a
“Variable Price Formulation”), the Company shall provide written notice thereof via facsimile and overnight courier to the Holder (the “Variable Notice”) on the date of issuance or deemed issuance of such
Convertible Securities or Options. From and after the date the Company issues or is deemed to have issued any such Convertible Securities or Options with a Variable Price Formulation, but only for so long as such Convertible Securities or Options
are outstanding, the Holder shall have the right, but not the obligation, in its sole discretion to substitute any applicable Variable Price Formulation for the Conversion Price upon the Conversion of this Note by designating in the Conversion
Notice delivered upon any conversion of this Notes that solely for purposes of such conversion the Holder is relying on the Variable Price Formulation rather than the Conversion Price then in effect. The Holder’s election to rely on a Variable
Price Formulation for a particular conversion of this Note shall not obligate the Holder to rely on a Variable Price Formulation for any future conversion of this Note. In connection with determining the “lowest price per share for which one
share of Common Stock is issuable upon exercise of any Option” pursuant to Section 7(a)(i) and the “lowest price per share for which one share of Common Stock is issuable upon the conversion, exercise or exchange of a Convertible
Security” pursuant to Section 7(a)(ii), as such terms pertain solely to any 

  
 - 15 -

 
Variable Price Formulation contained in any Option or Convertible Securities issued after the Issuance Date, such lowest price shall equal the lesser of (i) the fixed exercise, conversion or
exchange price set forth in the applicable Option or Convertible Security and (ii) the Variable Price Formulation contained in the applicable Option or Convertible Security, calculated as if such Option or Convertible Security were converted,
exercised or exchanged as of the date of issuance of the applicable Option or Convertible Security. 
 (b) Adjustment of
Conversion Price upon Subdivision or Combination of Common Stock. If the Company at any time on or after the Subscription Date subdivides (by any stock split, stock dividend, recapitalization or otherwise) one or more classes of its outstanding
shares of Common Stock into a greater number of shares, the Conversion Price in effect immediately prior to such subdivision will be proportionately reduced. If the Company at any time on or after the Subscription Date combines (by combination,
reverse stock split or otherwise) one or more classes of its outstanding shares of Common Stock into a smaller number of shares, the Conversion Price in effect immediately prior to such combination will be proportionately increased. 

(c) De Minimis Adjustments. No adjustment in the Conversion Price shall be required unless such adjustment would require an
increase or decrease of at least $0.01 in such price; provided, however, that any adjustment which by reason of this Section 7(c) is not required to be made shall be carried forward and taken into account in any subsequent adjustments under
this Section 7. All calculations under this Section 7 shall be made by the Company in good faith and shall be made to the nearest cent or to the nearest one hundredth of a share, as applicable. No adjustment need be made for a change in
the par value or no par value of the Company’s Common Stock. 
 (d) Voluntary Adjustment By Company. The Company
may at any time during the term of this Note reduce the then current Conversion Price to any amount and for any period of time deemed appropriate by the Board of Directors of the Company. 

(8) NONCIRCUMVENTION. The Company hereby covenants and agrees that the Company will not, by amendment of its Certificate of
Incorporation, Bylaws or through any reorganization, transfer of assets, consolidation, merger, scheme of arrangement, dissolution, issue or sale of securities, or any other voluntary action, avoid or seek to avoid the observance or performance of
any of the terms of this Note, and will at all times in good faith carry out all of the provisions of this Note and take all action as may be required to protect the rights of the Holder of this Note. 

(9) RESERVATION OF AUTHORIZED SHARES. 
 (a) Reservation. The Company shall initially reserve out of its authorized and unissued Common Stock a number of shares of Common Stock for each of the Notes equal to 130% of the Conversion Rate
with respect to the Conversion Amount of each such Note as of the Issuance Date. So long as any of the Notes are outstanding, the Company shall take all action necessary to reserve and keep available out of its authorized and unissued Common Stock,
solely for the purpose of effecting the conversion of the Notes, 130% of the number of shares of Common Stock as shall from time to time be necessary to effect the conversion of all of 

  
 - 16 -

 
the Notes then outstanding; provided that at no time shall the number of shares of Common Stock so reserved be less than the number of shares required to be reserved by the previous sentence
(without regard to any limitations on conversions) (the “Required Reserve Amount”). The initial number of shares of Common Stock reserved for conversions of the Notes and each increase in the number of shares so reserved shall be
allocated pro rata among the holders of the Notes based on the principal amount of the Notes held by each holder at the Closing (as defined in the Securities Purchase Agreement) or increase in the number of reserved shares, as the case may be (the
“Authorized Share Allocation”). In the event that a holder shall sell or otherwise transfer any of such holder’s Notes, each transferee shall be allocated a pro rata portion of such holder’s Authorized Share Allocation.
Any shares of Common Stock reserved and allocated to any Person which ceases to hold any Notes shall be allocated to the remaining holders of Notes, pro rata based on the principal amount of the Notes then held by such holders. 

(b) Insufficient Authorized Shares. If at any time while any of the Notes remain outstanding the Company does not have a
sufficient number of authorized and unreserved shares of Common Stock to satisfy its obligation to reserve for issuance upon conversion of the Notes at least a number of shares of Common Stock equal to the Required Reserve Amount (an
“Authorized Share Failure”), then the Company shall immediately take all action necessary to increase the Company’s authorized shares of Common Stock to an amount sufficient to allow the Company to reserve the Required Reserve
Amount for the Notes then outstanding. Without limiting the generality of the foregoing sentence, as soon as practicable after the date of the occurrence of an Authorized Share Failure, but in no event later than sixty (60) days after the
occurrence of such Authorized Share Failure, the Company shall either (x) obtain the written consent of its stockholders for the approval of an increase in the number of authorized shares of Common Stock and provide each stockholder with an
information statement with respect thereto or (y) hold a meeting of its stockholders for the approval of an increase in the number of authorized shares of Common Stock. In connection with such meeting, the Company shall provide each stockholder
with a proxy statement and shall use its best efforts to solicit its stockholders’ approval of such increase in authorized shares of Common Stock and to cause its board of directors to recommend to the stockholders that they approve such
proposal. 
 (10) COMPANY’S RIGHT OF MANDATORY CONVERSION. 

(a) Mandatory Conversion. At any time after the effective date (the “Effective Date”) of the Company’s Plan
of Reorganization with respect to the Company’s Chapter 11 Case (the “Mandatory Conversion Eligibility Date”), if (i) the Weighted Average Price of the Common Stock listed on the Principal Market equals or exceeds 150% of
the Conversion Price as of the Issuance Date (subject to appropriate adjustments for stock splits, stock dividends, stock combinations and other similar transactions after the Issuance Date) for a period of ten (10) consecutive Trading Days
commencing after the Mandatory Conversion Eligibility Date (the “Mandatory Conversion Measuring Period”), and (ii) no Equity Conditions Failure has occurred, the Company shall have the right to require the Holder to convert all
or any portion of the Conversion Amount then remaining under this Note, in each case as designated in the Mandatory Conversion Notice (as defined below) into fully paid, validly issued and nonassessable shares of Common Stock in accordance with
Section 3(c) hereof at the Conversion Rate as of the Mandatory Conversion Date (as defined below) (a “Mandatory Conversion”). The Company may exercise its right to require conversion under this Section 10(a) by delivering
within not more 

  
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than two (2) Trading Days following the end of such Mandatory Conversion Measuring Period a written notice thereof by facsimile and overnight courier to all, but not less than all, of the
holders of Notes and the Transfer Agent (the “Mandatory Conversion Notice” and the date all of the holders of the Notes received such notice by facsimile is referred to as the “Mandatory Conversion Notice Date”).
The Mandatory Conversion Notice shall be irrevocable. The Mandatory Conversion Notice shall (y) state (I) the Trading Day selected for the Mandatory Conversion, which Trading Day shall be no sooner than twenty (20) Trading Days nor
later than sixty (60) Trading Days following the Mandatory Conversion Notice Date (the “Mandatory Conversion Date”), (II) the aggregate Conversion Amount of the Notes subject to Mandatory Conversion from the Holder and all of
the holders of the Notes pursuant to this Section 10(a) (and analogous provisions under the Other Notes), (III) the number of shares of Common Stock to be issued to the Holder on the Mandatory Conversion Date and (z) certify that there has
been no Equity Conditions Failure; provided, however, that the Company may not effect a Mandatory Conversion under this Section in excess of the Holder Pro Rata Amount of the applicable Mandatory Conversion Volume Limitation. Notwithstanding the
foregoing, the Company may not effect a Mandatory Conversion until a minimum of thirty (30) consecutive days have elapsed after any prior Mandatory Conversion Date. 
 (b) Pro Rata Conversion Requirement. If the Company elects to cause a conversion of any Conversion Amount of this Note pursuant to Section 10(a), then it must simultaneously take the same
action in the same proportion with respect to the Other Notes. If the Company elects a Mandatory Conversion of this Note pursuant to Section 10(a) (or similar provisions under the Other Notes) with respect to less than all of the Conversion
Amounts of the Notes then outstanding, then the Company shall require conversion of a Conversion Amount from each of the holders of the Notes equal to the product of (1) the aggregate Conversion Amount of Notes which the Company has elected to
cause to be converted pursuant to Section 10(a), multiplied by (2) a fraction, the numerator of which is the sum of the aggregate Original Principal Amount of the Notes purchased by such holder of outstanding Notes and the denominator of
which is the sum of the aggregate Original Principal Amount of the Notes purchased by all holders holding outstanding Notes (such fraction with respect to each holder is referred to as its “Conversion Allocation Percentage,” and
such amount with respect to each holder is referred to as its “Pro Rata Conversion Amount”); provided, however, that in the event that any holder’s Pro Rata Conversion Amount exceeds the outstanding Principal amount of such
holder’s Note, then such excess Pro Rata Conversion Amount shall be allocated amongst the remaining holders of Notes in accordance with the foregoing formula. In the event that the initial holder of any Notes shall sell or otherwise transfer
any of such holder’s Notes, the transferee shall be allocated a pro rata portion of such holder’s Conversion Allocation Percentage and the Pro Rata Conversion Amount. 

(11) OPTIONAL REDEMPTION AT THE COMPANY’S ELECTION. 

(a) General. At any time after the date hereof, so long as there has been no Equity Conditions Failure, the Company shall have
the right to redeem all or any portion of the Conversion Amount then remaining under this Note (the “Company Optional Redemption Amount”) as designated in the Company Optional Redemption Notice on the Company Optional Redemption
Date (each as defined below) (a “Company Optional Redemption”). The portion of this Note subject to redemption pursuant to this Section 11(a) shall be redeemed by the Company

  
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in cash at a price equal to 110% of the sum of (x) any Make-Whole Amount and (y) the Conversion Amount being redeemed (the “Company Optional Redemption Price”). The
Company may exercise its right to require redemption under this Section 11 by delivering a written notice thereof by facsimile and overnight courier to all, but not less than all, of the holders of Notes (the “Company Optional
Redemption Notice” and the date all of the holders received such notice is referred to as the “Company Optional Redemption Notice Date”). Each Company Optional Redemption Notice shall be irrevocable. The Company Optional
Redemption Notice shall state (1) the date on which the Company Optional Redemption shall occur (the “Company Optional Redemption Date”), which date shall not be less than thirty (30) Business Days nor more than sixty
(60) Business Days following the Company Optional Redemption Notice Date, and (2) the aggregate Conversion Amount of the Notes which the Company has elected to be subject to Company Optional Redemption from the Holder and all of the other
holders of the Notes pursuant to this Section 11(a) (and analogous provisions under the Other Notes) on the Company Optional Redemption Date. The Company may not effect a Company Optional Redemption until a minimum of five (5) consecutive
Trading Days have elapsed after any prior Company Optional Redemption Date. Notwithstanding anything to the contrary in this Section 11, until the Company Optional Redemption Price is paid in full, the Company Optional Redemption Amount may be
converted, in whole or in part, by the Holders into shares of Common Stock pursuant to Section 3. If the Holder so elects, any or all of the Conversion Amounts converted by the Holder after the Company Optional Redemption Notice Date shall
reduce the Company Optional Redemption Amount of this Note required to be redeemed on the Company Optional Redemption Date. Redemptions made pursuant to this Section 11 shall be made in accordance with Section 12. 

(b) Pro Rata Redemption Requirement. If the Company elects to cause a Company Optional Redemption pursuant to Section 11(a),
then it must simultaneously take the same action in the same proportion with respect to the Other Notes. If the Company elects to cause a Company Optional Redemption pursuant to Section 11(a) (or similar provisions under the Other Notes) with
respect to less than all of the Conversion Amounts of the Notes then outstanding, then the Company shall require redemption of a Conversion Amount from each of the holders of the Notes equal to the product of (i) the aggregate Conversion Amount
of Notes which the Company has elected to cause to be redeemed pursuant to Section 11(a), multiplied by (ii) a fraction, the numerator of which is the sum of the aggregate Original Principal Amount of the Notes purchased by such holder of
outstanding Notes and the denominator of which is the sum of the aggregate Original Principal Amount of the Notes purchased by all holders holding outstanding Notes (such fraction with respect to each holder is referred to as its “Company
Redemption Allocation Percentage”, and such amount with respect to each holder is referred to as its “Pro Rata Company Redemption Amount”); provided, however that in the event that any holder’s Pro Rata Company
Redemption Amount exceeds the outstanding Principal amount of such holder’s Note, then such excess Pro Rata Company Redemption Amount shall be allocated amongst the remaining holders of Notes in accordance with the foregoing formula. In the
event that the initial holder of any Notes shall sell or otherwise transfer any of such holder’s Notes, the transferee shall be allocated a pro rata portion of such holder’s Company Redemption Allocation Percentage and Pro Rata Company
Redemption Amount. 

  
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 (12)
REDEMPTIONS. 
 (a) Mechanics. The Company shall deliver the applicable Event of Default Redemption Price to the
Holder within five (5) Business Days after the Company’s receipt of the Holder’s Event of Default Redemption Notice (the “Event of Default Redemption Date”). If the Holder has submitted a Change of Control Redemption
Notice in accordance with Section 5(b), the Company shall deliver the applicable Change of Control Redemption Price to the Holder (i) concurrently with the consummation of such Change of Control if such notice is received prior to the
consummation of such Change of Control and (ii) within five (5) Business Days after the Company’s receipt of such notice otherwise (such date, the “Change of Control Redemption Date”). If the Company has submitted a Company
Optional Redemption Notice in accordance with Section 11(a), the Company shall deliver the applicable Company Optional Redemption Price to the Holder on the Company Optional Redemption Date. In the event of a redemption of less than all of the
Conversion Amount of this Note, the Company shall promptly cause to be issued and delivered to the Holder a new Note (in accordance with Section 17(d)) representing the outstanding Principal which has not been redeemed. In the event that the
Company does not pay the applicable Redemption Price to the Holder within the time period required, at any time thereafter and until the Company pays such unpaid Redemption Price in full, the Holder shall have the option, in lieu of redemption, to
require the Company by written notice to promptly return to the Holder all or any portion of this Note representing the Conversion Amount that was submitted for redemption and for which the applicable Redemption Price has not been paid. Upon the
Company’s receipt of such notice, (x) the applicable Redemption Notice shall be null and void with respect to such Conversion Amount, (y) the Company shall immediately return this Note, or issue a new Note (in accordance with
Section 17(d)) to the Holder representing such Conversion Amount to be redeemed and (z) the Conversion Price of this Note or such new Notes shall be adjusted to the lesser of (A) the Conversion Price as in effect on the date on which
the applicable Redemption Notice is voided and (B) the lowest Closing Bid Price of the shares of Common Stock during the period beginning on and including the date on which the applicable Redemption Notice is delivered to or by the Company and
ending on and including the date on which the applicable Redemption Notice is voided. 
 (b) Redemption by Other
Holders. Upon the Company’s receipt of notice from any of the holders of the Other Notes for redemption or repayment as a result of an event or occurrence substantially similar to the events or occurrences described in Section 4(b) or
Section 5(b) (each, an “Other Redemption Notice”), the Company shall immediately, but no later than one (1) Business Day of its receipt thereof, forward to the Holder by facsimile a copy of such notice. If the Company
receives a Redemption Notice and one or more Other Redemption Notices, during the seven (7) Business Day period beginning on and including the date which is three (3) Business Days prior to the Company’s receipt of the Holder’s
Redemption Notice and ending on and including the date which is three (3) Business Days after the Company’s receipt of the Holder’s Redemption Notice and the Company is unable to redeem all principal, interest and other amounts
designated in such Redemption Notice and such Other Redemption Notices received during such seven (7) Business Day period, then the Company shall redeem a pro rata amount from each holder of the Notes (including the Holder) based on the
principal amount of the Notes submitted for redemption pursuant to such Redemption Notice and such Other Redemption Notices received by the Company during such seven Business Day period. 

  
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 (13) VOTING
RIGHTS. The Holder shall have no voting rights as the holder of this Note, except as required by law, including, but not limited to, the General Corporation Law of the State of Delaware, and as expressly provided in this Note. 

(14) COVENANTS. 
 (a) Bankruptcy Court Order. So long as this Note is outstanding, the Company shall not, at any time, seek, consent to or suffer to exist any reversal, modification, amendment, stay or vacation of
the Approval Order or the Final Approval Order, except for modifications and amendments agreed to by the Required Holders. 

(b) Existence of Claims. So long as this Note is outstanding, the Company shall not at any time, suffer to exist a priority for
any administrative expense or unsecured claim against the Company, including, without limitation, any administrative expenses of the kind specified in, or arising or ordered under, Sections 105, 326, 328, 330, 331, 503(b), 506(c), 507(a), 507(b),
546(c) 726 and 1114 of the Bankruptcy Code equal or superior to the priority of the Holder in respect of the Collateral. 
 (c)
Preservation of Existence, Etc. The Company shall maintain and preserve its existence, rights and privileges, and become or remain, duly qualified and in good standing in each jurisdiction in which the character of the properties owned or
leased by it or in which the transaction of its business makes such qualification necessary. 
 (d) Transactions with
Affiliates. The Company shall not enter into, renew, extend or be a party to, any transaction or series of related transactions (including, without limitation, the purchase, sale, lease, transfer or exchange of property or assets of any kind or
the rendering of services of any kind) with any Affiliate, except (i) in the ordinary course of business in a manner and to an extent consistent with past practice and necessary or desirable for the prudent operation of its business (including
consistent with the past practices of Accentia Biopharmaceuticals Inc.), for fair consideration and on terms no less favorable to it than would be obtainable in a comparable arm’s length transaction with a Person that is not an Affiliate
thereof or (ii) for any transactions or series of related transactions as are approved by a disinterested committee of the Company’s board of directors. 
 (15) VOTE TO ISSUE, OR CHANGE THE TERMS OF, NOTES. The affirmative vote at a meeting duly called for such purpose or the written consent without a meeting of the Required Holders shall be required
for any change or amendment to this Note or the Other Notes. 
 (16) TRANSFER. This Note and any shares of Common Stock
issued upon conversion of this Note may be offered, sold, assigned or transferred by the Holder without the consent of the Company, subject only to the provisions of Section 2(i) of the Securities Purchase Agreement. 

(17) REISSUANCE OF THIS NOTE. 
 (a) Transfer. If this Note is to be transferred, the Holder shall surrender this Note to the Company, whereupon the Company will forthwith issue and deliver upon the order

  
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of the Holder a new Note (in accordance with Section 17(d)), registered as the Holder may request, representing the outstanding Principal being transferred by the Holder and, if less then
the entire outstanding Principal is being transferred, a new Note (in accordance with Section 17(d)) to the Holder representing the outstanding Principal not being transferred. The Holder and any assignee, by acceptance of this Note,
acknowledge and agree that, by reason of the provisions of Section 3(c)(iv) following conversion or redemption of any portion of this Note, the outstanding Principal represented by this Note may be less than the Principal stated on the face of
this Note. 
 (b) Lost, Stolen or Mutilated Note. Upon receipt by the Company of evidence reasonably satisfactory to the
Company of the loss, theft, destruction or mutilation of this Note, and, in the case of loss, theft or destruction, of any indemnification undertaking by the Holder to the Company in customary form and, in the case of mutilation, upon surrender and
cancellation of this Note, the Company shall execute and deliver to the Holder a new Note (in accordance with Section 17(d)) representing the outstanding Principal. 
 (c) Note Exchangeable for Different Denominations. This Note is exchangeable, upon the surrender hereof by the Holder at the principal office of the Company, for a new Note or Notes (in accordance
with Section 17(d) and in principal amounts of at least $100,000) representing in the aggregate the outstanding Principal of this Note, and each such new Note will represent such portion of such outstanding Principal as is designated by the
Holder at the time of such surrender. 
 (d) Issuance of New Notes. Whenever the Company is required to issue a new Note
pursuant to the terms of this Note, such new Note (i) shall be of like tenor with this Note, (ii) shall represent, as indicated on the face of such new Note, the Principal remaining outstanding (or in the case of a new Note being issued
pursuant to Section 17(a) or Section 17(c), the Principal designated by the Holder which, when added to the principal represented by the other new Notes issued in connection with such issuance, does not exceed the Principal remaining
outstanding under this Note immediately prior to such issuance of new Notes), (iii) shall have an issuance date, as indicated on the face of such new Note, which is the same as the Issuance Date of this Note, (iv) shall have the same
rights and conditions as this Note, and (v) shall represent accrued and unpaid Interest of this Note, from the Issuance Date. 
 (18) REMEDIES, CHARACTERIZATIONS, OTHER OBLIGATIONS, BREACHES AND INJUNCTIVE RELIEF. The remedies provided in this Note shall be cumulative and in addition to all other remedies available under
this Note and any of the other Transaction Documents at law or in equity (including a decree of specific performance and/or other injunctive relief), and nothing herein shall limit the Holder’s right to pursue actual and consequential damages
for any failure by the Company to comply with the terms of this Note. Amounts set forth or provided for herein with respect to payments, conversion and the like (and the computation thereof) shall be the amounts to be received by the Holder and
shall not, except as expressly provided herein, be subject to any other obligation of the Company (or the performance thereof). The Company acknowledges that a breach by it of its obligations hereunder will cause irreparable harm to the Holder and
that the remedy at law for any such breach may be inadequate. The Company therefore agrees that, in the event of any such breach or threatened breach, the Holder shall be entitled, in addition to all other available remedies, to an injunction
restraining any breach, without the necessity of showing economic loss and without any bond or other security being required. 

  
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 (19) PAYMENT OF
COLLECTION, ENFORCEMENT AND OTHER COSTS. If (a) this Note is placed in the hands of an attorney for collection or enforcement or is collected or enforced through any legal proceeding or the Holder otherwise takes action to collect amounts
due under this Note or to enforce the provisions of this Note or (b) there occurs any bankruptcy, reorganization, receivership of the Company or other proceedings affecting Company creditors’ rights and involving a claim under this Note
(other than the Company’s Chapter 11 Case), then the Company shall pay the costs incurred by the Holder for such collection, enforcement or action or in connection with such bankruptcy, reorganization, receivership or other proceeding,
including, but not limited to, attorneys’ fees and disbursements. 
 (20) CONSTRUCTION; HEADINGS. This Note shall be
deemed to be jointly drafted by the Company and all the Holders and shall not be construed against any person as the drafter hereof. The headings of this Note are for convenience of reference and shall not form part of, or affect the interpretation
of, this Note. 
 (21) FAILURE OR INDULGENCE NOT WAIVER. No failure or delay on the part of the Holder in the exercise of
any power, right or privilege hereunder shall operate as a waiver thereof unless a waiver signed by the Holder is set forth in writing, nor shall any single or partial exercise of any such power, right or privilege preclude other or further exercise
thereof or of any other right, power or privilege except as otherwise set forth in a written instrument signed by Holder. 

(22) DISPUTE RESOLUTION. In the case of a dispute as to the determination of the Closing Bid Price, the Closing Sale Price or the
Weighted Average Price or the arithmetic calculation of the Conversion Rate, the Conversion Price or any Redemption Price, the Company shall submit the disputed determinations or arithmetic calculations via facsimile within one (1) Business Day
of receipt, or deemed receipt, of the Conversion Notice or Redemption Notice or other event giving rise to such dispute, as the case may be, to the Holder. If the Holder and the Company are unable to agree upon such determination or calculation
within one (1) Business Day of such disputed determination or arithmetic calculation being submitted to the Holder, then the Company shall, within one Business Day submit via facsimile (a) the disputed determination of the Closing Bid
Price, the Closing Sale Price or the Weighted Average Price to an independent, reputable investment bank selected by the Holder and approved by the Company, such approval not to be unreasonably withheld, or (b) the disputed arithmetic
calculation of the Conversion Rate, Conversion Price or any Redemption Price to an independent, outside accountant, selected by the Holder and approved by the Company, such approval not to be unreasonably withheld. The Company, at the Company’s
expense, shall cause the investment bank or the accountant, as the case may be, to perform the determinations or calculations and notify the Company and the Holder of the results no later than five (5) Business Days from the time it receives
the disputed determinations or calculations. Such investment bank’s or accountant’s determination or calculation, as the case may be, shall be binding upon all parties absent demonstrable error. 

  
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 (23) NOTICES;
PAYMENTS. 
 (a) Notices. Whenever notice is required to be given under this Note, unless otherwise provided herein,
such notice shall be given in accordance with Section 9(f) of the Securities Purchase Agreement. The Company shall provide the Holder with prompt written notice of all actions taken pursuant to this Note, including in reasonable detail a
description of such action and the reason therefore. Without limiting the generality of the foregoing, the Company will give written notice to the Holder (i) immediately upon any adjustment of the Conversion Price, setting forth in reasonable
detail, and certifying, the calculation of such adjustment and (ii) at least twenty (20) days prior to the date on which the Company closes its books or takes a record (A) with respect to any dividend or distribution upon the Common
Stock, (B) with respect to any pro rata subscription offer to holders of Common Stock or (C) for determining rights to vote with respect to any Fundamental Transaction, dissolution or liquidation, provided in each case that such
information shall be made known to the public prior to or in conjunction with such notice being provided to the Holder. 
 (b)
Payments. Whenever any payment of cash is to be made by the Company to any Person pursuant to this Note, such payment shall be made in lawful money of the United States of America by a check drawn on the account of the Company and sent via
overnight courier service to such Person at such address as previously provided to the Company in writing (which address, in the case of each of the Holders, shall initially be as set forth on the Schedule of Buyers attached to the Securities
Purchase Agreement); provided that the Holder may elect to receive a payment of cash via wire transfer of immediately available funds by providing the Company with prior written notice setting out such request and the Holder’s wire transfer
instructions. Whenever any amount expressed to be due by the terms of this Note is due on any day which is not a Business Day, the same shall instead be due on the next succeeding day which is a Business Day and, in the case of any Interest Date
which is not the date on which this Note is paid in full, the extension of the due date thereof shall not be taken into account for purposes of determining the amount of Interest due on such date. 

(24) CANCELLATION. After all Principal, accrued Interest and other amounts at any time owed on this Note have been paid in full,
this Note shall automatically be deemed canceled, shall be surrendered to the Company for cancellation and shall not be reissued. 
 (25) WAIVER OF NOTICE. To the extent permitted by law, the Company hereby waives demand, notice, protest and all other demands and notices in connection with the delivery, acceptance, performance,
default or enforcement of this Note and the Securities Purchase Agreement. 
 (26) INTENTIONALLY OMITTED. 

(27) INTENTIONALLY OMITTED. 
 (28) GOVERNING LAW; JURISDICTION; JURY TRIAL. For the period from the entry of the Approval Order until the Effective Date, all disputes under this Note and any other Transaction Document shall be
subject to the exclusive jurisdiction of the Bankruptcy Court. Thereafter, this Note shall be construed and enforced in accordance with, and all questions 

  
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concerning the construction, validity, interpretation and performance of this Note shall be governed by, the internal laws of the State of New York, without giving effect to any choice of law or
conflict of law provision or rule (whether of the State of New York or any other jurisdictions) that would cause the application of the laws of any jurisdictions other than the State of New York. After the Effective Date, except as provided in
Section 22, the Company hereby irrevocably submits to the exclusive jurisdiction of the state and federal courts sitting in The City of New York, Borough of Manhattan, for the adjudication of any dispute hereunder or in connection herewith or
with any transaction contemplated hereby or discussed herein, and hereby irrevocably waives, and agrees not to assert in any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of any such court, that such
suit, action or proceeding is brought in an inconvenient forum or that the venue of such suit, action or proceeding is improper. Nothing contained herein shall be deemed to limit in any way any right to serve process in any manner permitted by law.
Nothing contained herein shall be deemed or operate to preclude the Holder from bringing suit or taking other legal action against the Company in any other jurisdiction to collect on the Company’s obligations to the Holder, to realize on any
collateral or any other security for such obligations, or to enforce a judgment or other court ruling in favor of the Holder. THE COMPANY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE
ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION WITH OR ARISING OUT OF THIS NOTE OR ANY TRANSACTION CONTEMPLATED HEREBY. 
 (29) SEVERABILITY. If any provision of this Note is prohibited by law or otherwise determined to be invalid or unenforceable by a court of competent jurisdiction, the provision that would otherwise
be prohibited, invalid or unenforceable shall be deemed amended to apply to the broadest extent that it would be valid and enforceable, and the invalidity or unenforceability of such provision shall not affect the validity of the remaining
provisions of this Note so long as this Note as so modified continues to express, without material change, the original intentions of the parties as to the subject matter hereof and the prohibited nature, invalidity or unenforceability of the
provision(s) in question does not substantially impair the respective expectations or reciprocal obligations of the parties or the practical realization of the benefits that would otherwise be conferred upon the parties. The parties will endeavor in
good faith negotiations to replace the prohibited, invalid or unenforceable provision(s) with a valid provision(s), the effect of which comes as close as possible to that of the prohibited, invalid or unenforceable provision(s). If it shall be found
that any default interest or other amount deemed interest due hereunder violates the applicable law governing usury, the applicable rate of interest due hereunder shall automatically be lowered to equal the maximum rate of interest permitted under
applicable law. The Company covenants (to the extent that it may lawfully do so) that it shall not at any time insist upon, plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay, extension or usury law or other law
which would prohibit or forgive the Company from paying all or any portion of the principal of or default interest on this Note as contemplated herein, wherever enacted, now or at any time hereafter in force, or which may affect the covenants or the
performance of this indenture, and the Company (to the extent it may lawfully do so) hereby expressly waives all benefits or advantage of any such law, and covenants that it will not, by resort to any such law, hinder, delay or impede the execution
of any power herein granted to the Holder, but will suffer and permit the execution of every such as though no such law has been enacted. 

  
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 (30) CERTAIN
DEFINITIONS. For purposes of this Note, the following terms shall have the following meanings: 
 (a)
“Affiliate” means, as to any specified Person, any other Person that directly or indirectly controls, or is under common control with, or is controlled by, such specified Person. As used in this definition,
“control” (including, with its correlative meanings, “controlled by” and “under common control with”) shall mean possession, directly or indirectly, of power to direct or cause the direction of the
management or policies (whether through ownership of securities or partnership or other ownership interests, by contract, or otherwise). 
 (b) “Approved Stock Plan” means any employee benefit plan which has been or is hereafter approved by the Board of Directors of the Company, pursuant to which the Company’s securities
may be issued to any employee, officer, advisor, consultant, and/or director for services provided to the Company; provided, however, that in the case of any issuance of securities to any consultant or advisor of the Company, such securities are
granted solely in consideration of the provision of bona fide services to the Company relating to the Company’s business or operations and not in connection with services relating to a financing or similar activity. 

(c) “Bankruptcy Code” means title 11 of the United States Code, 11 U.S.C. ss 101 et seq. 

(d) “Bankruptcy Court” means the United States Bankruptcy Court for the Middle District of Florida (Tampa Division).

 (e) “Bloomberg” means Bloomberg Financial Markets. 

(f) “Business Day” means any day other than Saturday, Sunday or other day on which commercial banks in The City of New
York are authorized or required by law to remain closed. 
 (g) “Change of Control” means any Fundamental
Transaction other than (i) any merger, consolidation, reorganization, recapitalization or reclassification of the Common Stock in which this Note remains convertible into the publicly traded common stock of the Successor Entity and in which the
holders of the Company’s voting power immediately prior to such merger, consolidation, reorganization, recapitalization or reclassification continue after such merger, consolidation, reorganization, recapitalization or reclassification to hold
publicly traded securities and, directly or indirectly, the voting power of the Successor Entity necessary to elect a majority of the members of the board of directors (or their equivalent if other than a corporation) of such Successor Entity and to
approve any measure requiring the approval of holders of a majority of the common stock (or its equivalent) of the Successor Entity, (ii) a license, distribution or development agreement relating to one or more of the Company’s biotech
products entered into on an arms length basis for reasonably equivalent value with a Person that is not a direct or indirect affiliate of the Company or any officer, director or employee thereof and that is in the business of commercializing or
developing biotech products or (iii) pursuant to a migratory merger effected solely for the purpose of changing the jurisdiction of incorporation of the Company. 

  
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 (h) “Chapter
11 Case” means the Company’s case under chapter 11 of the Bankruptcy Code, captioned In re: Biovest International, Inc., Case No. 8:08-bk-17796-KRM, which case is jointly administered for procedural purposes only under In re:
Accentia Biopharmaceuticals, Inc., Case No. 8:08-bk-17795-KRM. 
 (i) “Closing Bid Price” and
“Closing Sale Price” means, for any security as of any date, the last closing bid price and last closing trade price, respectively, for such security on the Principal Market, as reported by Bloomberg, or, if the Principal Market
begins to operate on an extended hours basis and does not designate the closing bid price or the closing trade price, as the case may be, then the last bid price or last trade price, respectively, of such security prior to 4:00:00 p.m., New York
Time, as reported by Bloomberg, or, if the Principal Market is not the principal securities exchange or trading market for such security, the last closing bid price or last trade price, respectively, of such security on the principal securities
exchange or trading market where such security is listed or traded as reported by Bloomberg, or if the foregoing do not apply, the last closing bid price or last trade price, respectively, of such security in the over-the-counter market on the
electronic bulletin board for such security as reported by Bloomberg, or, if no closing bid price or last trade price, respectively, is reported for such security by Bloomberg, the average of the bid prices, or the ask prices, respectively, of any
market makers for such security as reported in the “pink sheets” by Pink Sheets LLC (formerly the National Quotation Bureau, Inc.). If the Closing Bid Price or the Closing Sale Price cannot be calculated for a security on a particular date
on any of the foregoing bases, the Closing Bid Price or the Closing Sale Price, as the case may be, of such security on such date shall be the fair market value as mutually determined by the Company and the Holder. If the Company and the Holder are
unable to agree upon the fair market value of such security, then such dispute shall be resolved pursuant to Section 22. All such determinations shall be appropriately adjusted for any stock dividend, stock split, stock combination,
reclassification or similar transaction during the applicable calculation period. 
 (j) “Closing Date” shall
have the meaning set forth in the Securities Purchase Agreement, which date is the date the Company initially issued the Notes pursuant to the terms of the Securities Purchase Agreement. 

(k) “Company’s Plan of Reorganization” means the Company’s First Amended Joint Plan of Reorganization dated
as of August 16, 2010 filed in the Chapter 11 Case, as it may be amended, supplemented or modified from time to time. 

(l) “Contingent Obligation” means, as to any Person, any direct or indirect liability, contingent or otherwise, of that
Person with respect to any Indebtedness, lease, dividend or other obligation of another Person if the primary purpose or intent of the Person incurring such liability, or the primary effect thereof, is to provide assurance to the obligee of such
liability that such liability will be paid or discharged, or that any agreements relating thereto will be complied with, or that the holders of such liability will be protected (in whole or in part) against loss with respect thereto. 

(m) “Collateral” has the meaning set forth in the Securities Purchase Agreement. 

  
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 (n)
“Convertible Securities” means any stock or securities (other than Options) directly or indirectly convertible into or exercisable or exchangeable for shares of Common Stock. 

(o) “Eligible Market” means the Principal Market, any other market tier operated by Pink OTC Markets Inc., The New York
Stock Exchange, Inc., NYSE Amex, The NASDAQ Global Market, The NASDAQ Capital Market, The NASDAQ Global Select Market, or the OTC Bulletin Board. 
 (p) “Equity Conditions” means each of the following conditions: (i) on each day during the period beginning on the later of three (3) months prior to the applicable date of
determination and the Issuance Date of this Note and ending on and including the applicable date of determination (the “Equity Conditions Measuring Period”), all shares of Common Stock issuable upon conversion of the Notes and
exercise of the Warrants shall be eligible for sale without restriction and without the need for registration under any applicable federal or state securities laws including, but not limited to, pursuant to Section 1145 of the Bankruptcy Code;
(ii) on each day during the Equity Conditions Measuring Period the Common Stock is designated for quotation on the Principal Market or any other Eligible Market and shall not have been suspended from trading on such exchange or market (other
than suspensions of not more than two (2) days and occurring prior to the applicable date of determination due to business announcements by the Company) nor shall delisting or suspension by such exchange or market been threatened or pending
either (A) in writing by such exchange or market or (B) by falling below the then effective minimum listing maintenance requirements of such exchange or market; (iii) during the one (1) year period ending on and including the
date immediately preceding the applicable date of determination, the Company shall have delivered shares of Common Stock issuable upon the conversion of the Notes and exercise of the Warrants to the holders on a timely basis as set forth in
Section 3(c) hereof (and analogous provisions under the Other Notes) and Sections 2(a) of the Warrants, respectively; (iv) any applicable shares of Common Stock to be issued in connection with the event requiring determination may be
issued in full without violating or causing the Holder to exceed the provisions of Section 3(d) hereof and the rules or regulations of the Principal Market or any other applicable Eligible Market; (v) during the Equity Conditions Measuring
Period, the Company shall not have failed to timely make any payments within five (5) Business Days of when such payment is due pursuant to any Transaction Document; (vi) during the Equity Conditions Measuring Period, there shall not have
occurred either (A) the public announcement of a pending, proposed or intended Fundamental Transaction which has not been abandoned, terminated or consummated, (B) an Event of Default or (C) an event that with the passage of time or
giving of notice would constitute an Event of Default; (vii) the Company shall have no knowledge of any fact that would cause any shares of Common Stock issuable upon conversion of the Notes and shares of Common Stock issuable upon exercise of
the Warrants not to be eligible for sale without restriction pursuant to Rule 144 and without the requirement to be in compliance with Rule 144(c)(1) (or any successor thereto) promulgated under the 1933 Act or Section 1145 of the Bankruptcy
Code and any applicable state securities laws and (viii) the Company otherwise shall have been in compliance with and shall not have materially breached any provision, covenant, representation or warranty of any Transaction Document which
remains uncured. 
 (q) “Equity Conditions Failure” means that on any day during the period commencing ten
(10) Trading Days prior to the applicable date of determination through the applicable date of determination, the Equity Conditions have not been satisfied (or waived in writing by the Holder). 

  
 - 28 -

  
 (r) “Excluded
Securities” means any shares of Common Stock issued or issuable: (i) in connection with any Approved Stock Plan; (ii) upon exercise of the Warrants or conversion of the Other Notes; provided that the terms of such Warrants and
Other Notes are not amended, modified or changed on or after the Subscription Date other than pursuant to Section 2(b) of the Warrant and other than pursuant to any anti-dilution provisions of this Note, the Other Notes, or the Warrants,
(iii) upon conversion or exercise of any Options or Convertible Securities which are outstanding on the day immediately preceding the Subscription Date, provided that the exercise prices or conversion prices of such Options or Convertible
Securities are not decreased and the number of shares issuable upon exercise or conversion are not increased other than in accordance with their terms, (iv) in connection with mergers, acquisitions, strategic business partnerships (including
without limitation license, distribution, or development partnerships), or joint ventures, in each case with non-affiliated third parties and otherwise on an arm’s-length basis, the purpose of which is not to raise additional capital; provided
that any Common Stock issued or issuable in connection with any transaction contemplated by this clause (iv) that is either (A) attributable to capital raising for the Company or its Subsidiaries (other than nominal amounts of capital) or
(B) to raise capital for the Company or its Subsidiaries, directly or indirectly, in order to fund any transaction contemplated by this clause (iv), including, without limitation, securities issued in one or more related transactions or that
result in similar economic consequences, shall not be deemed to be Excluded Securities or (v) pursuant to or in accordance with the Plan. 
 (s) “Fundamental Transaction” means that (A) the Company shall, directly or indirectly, in one or more related transactions, (i) consolidate or merge with or into (whether or
not the Company is the surviving corporation) another Person or Persons, or (ii) sell, assign, transfer, convey or otherwise dispose of all or substantially all of the properties or assets of the Company to another Person, or (iii) allow
another Person to make a purchase, tender or exchange offer that is accepted by the holders of more than the 50% of the outstanding shares of Voting Stock (not including any shares of Voting Stock held by the Person or Persons making or party to, or
associated or affiliated with the Persons making or party to, such purchase, tender or exchange offer), or (iv) consummate a stock purchase agreement or other business combination (including, without limitation, a reorganization,
recapitalization, spin-off or scheme of arrangement) with another Person whereby such other Person acquires more than the 50% of the outstanding shares of Voting Stock (not including any shares of Voting Stock held by the other Person or other
Persons making or party to, or associated or affiliated with the other Persons making or party to, such stock purchase agreement or other business combination), or (v) reorganize, recapitalize or reclassify its Common Stock or (B) any
“person” or “group” (as these terms are used for purposes of Sections 13(d) and 14(d) of the Exchange Act) is or shall become the “beneficial owner” (as defined in Rule 13d-3 under the Exchange Act), directly or
indirectly, of 50% of the aggregate ordinary voting power represented by issued and outstanding Common Stock. Notwithstanding the foregoing, the term “Fundamental Transaction” shall not include any issuance of securities or any other
transaction contemplated to occur at the Effective Date pursuant to the Company’s Plan of Reorganization. 
 (t)
“GAAP” means United States generally accepted accounting principles, consistently applied. 

  
 - 29 -

  
 (u) “Holder
Pro Rata Amount” means a fraction (i) the numerator of which is the Principal amount of this Note on the Closing Date and (ii) the denominator of which is the aggregate principal amount of all Notes issued to the initial
purchasers pursuant to the Securities Purchase Agreement on the Closing Date. 
 (v) “Indebtedness” of any
Person means, without duplication (i) all indebtedness for borrowed money, (ii) all obligations issued, undertaken or assumed as the deferred purchase price of property or services, including (without limitation) “capital leases”
in accordance with GAAP (other than trade payables entered into in the ordinary course of business), (iii) all reimbursement or payment obligations with respect to letters of credit, surety bonds and other similar instruments, (iv) all
obligations evidenced by notes, bonds, debentures or similar instruments, including obligations so evidenced incurred in connection with the acquisition of property, assets or businesses, (v) all indebtedness created or arising under any
conditional sale or other title retention agreement, or incurred as financing, in either case with respect to any property or assets acquired with the proceeds of such indebtedness (even though the rights and remedies of the seller or bank under
such agreement in the event of default are limited to repossession or sale of such property), (vi) all monetary obligations under any leasing or similar arrangement which, in connection with GAAP, consistently applied for the periods covered
thereby, is classified as a capital lease, (vii) all indebtedness referred to in clauses (i) through (vi) above secured by (or for which the holder of such Indebtedness has an existing right, contingent or otherwise, to be secured by)
any mortgage, lien, pledge, charge, security interest or other encumbrance upon or in any property or assets (including accounts and contract rights) owned by any Person, even though the Person which owns such assets or property has not assumed or
become liable for the payment of such indebtedness, and (viii) all Contingent Obligations in respect of indebtedness or obligations of others of the kinds referred to in clauses (i) through (vii) above. 

(w) “Interest Conversion Price” means the lower of (i) the applicable Conversion Price and (ii) the price
computed as 90% of the arithmetic average of the Weighted Average Price of the Common Stock over the ten (10) consecutive Trading Day period immediately preceding the Interest Date. All such determinations shall be appropriately adjusted for
any stock split, stock dividend, stock combination or other similar transaction during such period. 
 (x) “Interest
Rate” means 7.00% per annum, subject to adjustment as set forth in Section 2. 
 (y) “Mandatory
Conversion Volume Limitation” means 20% of the aggregate dollar trading volume (as reported on Bloomberg) of the Common Stock on the Principal Market over the twenty (20) consecutive Trading Day period immediately prior to the
applicable Mandatory Conversion Notice Date. 
 (z) “Make-Whole Amount” means, as to any Conversion Amount on
any Conversion Date (including the Mandatory Conversion Date), as to any Event of Default Redemption on any Event of Default Redemption Date, as to any Change of Control Redemption on any Change of Control Redemption Date or as to any Company
Optional Redemption Price on any Company Optional Redemption Date, the amount equal to any Interest that, but for (i) the Holder’s exercise of its conversion right pursuant to Section 3(c), (ii) an Event of Default

  
 - 30 -

 
Redemption pursuant to Section 4(b), (iii) a Change of Control Redemption pursuant to Section 5(b), or (iv) a Company Optional Redemption pursuant to Section 11(a), would
have accrued with respect to the Conversion Amount being converted or redeemed under this Note at the Interest Rate (assuming the Interest Rate then in effect as of the applicable Conversion Date, Event of Default Redemption Notice Date, Change of
Control Redemption Notice Date or Company Option Redemption Notice Date, as the case may be, is the Interest Rate through the Maturity Date) for the period from the applicable Conversion Date, Event of Default Redemption Date, Change of Control
Redemption Date or the Company Optional Redemption Date, as the case may be, through the earlier of the one (1) year anniversary of such date or the Maturity Date. 
 (aa) “Options” means any rights, warrants or options to subscribe for or purchase shares of Common Stock or Convertible Securities. 

(bb) “Option Value” means the value of an Option based on the Black and Scholes Option Pricing model obtained from the
“OV” function on Bloomberg determined as of the day prior to the issuance of the applicable Option for pricing purposes and reflecting (i) a risk-free interest rate corresponding to the U.S. Treasury rate for a period equal to the
remaining term of the applicable Option as of the applicable date of determination, (ii) an expected volatility equal to the greater of 100% and the 100 day volatility obtained from the HVT function on Bloomberg as of the day immediately prior
to the public announcement of the applicable issuance, or if not publicly announced, as of the day immediately prior to the issuance of the applicable Option, (iii) the underlying price per share used in such calculation shall be the highest
Weighted Average Price during the period beginning on the day prior to the execution of definitive documentation relating to the issuance of the applicable Option and the public announcement of such issuance and (iv) a 360 day annualization
factor. 
 (cc) “Parent Entity” of a Person means an entity that, directly or indirectly, controls the
applicable Person and whose common stock or equivalent equity security is quoted or listed on an Eligible Market, or, if there is more than one such Person or Parent Entity, the Person or Parent Entity with the largest public market capitalization
as of the date of consummation of the Fundamental Transaction. 
 (dd) “Person” means an individual, a limited
liability company, a partnership, a joint venture, a corporation, a trust, an unincorporated organization, any other entity and a government or any department or agency thereof. 

(ee) “Principal Market” means the OTCQX market tier operated by Pink OTC Markets Inc. 

(ff) “Redemption Notices” means, collectively, the Event of Default Redemption Notices, the Change of Control
Redemption Notices and the Company Optional Redemption Notice, each of the foregoing, individually, a Redemption Notice. 

(gg) “Redemption Prices” means, collectively, the Event of Default Redemption Price, the Change of Control Redemption
Price and the Company Optional Redemption Price , each of the foregoing, individually, a Redemption Price. 

  
 - 31 -

  
 (hh) “Related
Fund” means, with respect to any Person, a fund or account managed by such Person or an Affiliate of such Person. 

(ii) “Required Holders” means the holders of Notes representing at least two-thirds of the aggregate principal amount
of the Notes then outstanding. 
 (jj) “SEC” means the United States Securities and Exchange Commission.

 (kk) “Securities Purchase Agreement” means that certain securities purchase agreement dated as of the
Subscription Date by and among the Company and the initial holders of the Notes pursuant to which the Company issued the Notes and Warrants. 
 (ll) “Subscription Date” means October 19, 2010. 
 (mm)
“Successor Entity” means the Person, which may be the Company, formed by, resulting from or surviving any Fundamental Transaction or the Person with which such Fundamental Transaction shall have been made, provided that if such
Person is not a publicly traded entity whose common stock or equivalent equity security is quoted or listed for trading on an Eligible Market, Successor Entity shall mean such Person’s Parent Entity. 

(nn) “Trading Day” means any day on which the Common Stock is traded on the Principal Market, or, if the Principal
Market is not the principal trading market for the Common Stock, then on the principal securities exchange or securities market on which the Common Stock is then traded; provided that “Trading Day” shall not include any day on which the
Common Stock is scheduled to trade on such exchange or market for less than 4.5 hours or any day that the Common Stock is suspended from trading during the final hour of trading on such exchange or market (or if such exchange or market does not
designate in advance the closing time of trading on such exchange or market, then during the hour ending at 4:00:00 p.m., New York Time). 
 (oo) “Voting Stock” of a Person means capital stock of such Person of the class or classes pursuant to which the holders thereof have the general voting power to elect, or the general
power to appoint, at least a majority of the board of directors, managers or trustees of such Person (irrespective of whether or not at the time capital stock of any other class or classes shall have or might have voting power by reason of the
happening of any contingency). 
 (pp) “Warrants” has the meaning ascribed to such term in the Securities
Purchase Agreement, and shall include all warrants issued in exchange therefor or replacement thereof. 
 (qq)
“Weighted Average Price” means, for any security as of any date, the dollar volume-weighted average price for such security on the Principal Market during the period beginning at 9:30:01 a.m., New York Time (or such other time as
the Principal Market publicly announces is the official open of trading), and ending at 4:00:00 p.m., New York Time (or such other time as the Principal Market publicly announces is the official close of trading) as reported by Bloomberg through its
“Volume at Price” functions, or, if the foregoing does not apply, the dollar volume-weighted average price of such security in the over-the-counter market 

  
 - 32 -

 
on the electronic bulletin board for such security during the period beginning at 9:30:01 a.m., New York Time (or such other time as such market publicly announces is the official open of
trading), and ending at 4:00:00 p.m., New York Time (or such other time as such market publicly announces is the official close of trading) as reported by Bloomberg, or, if no dollar volume-weighted average price is reported for such security by
Bloomberg for such hours, the average of the highest closing bid price and the lowest closing ask price of any of the market makers for such security as reported in the “pink sheets” by Pink Sheets LLC (formerly the National Quotation
Bureau, Inc.). If the Weighted Average Price cannot be calculated for a security on a particular date on any of the foregoing bases, the Weighted Average Price of such security on such date shall be the fair market value as mutually determined by
the Company and the Holder. If the Company and the Holder are unable to agree upon the fair market value of such security, then such dispute shall be resolved pursuant to Section 22. All such determinations shall be appropriately adjusted for
any stock dividend, stock split, stock combination, reclassification or similar transaction during the applicable calculation period. 
 (31) DISCLOSURE. Upon receipt or delivery by the Company of any notice in accordance with the terms of this Note, unless the Company has in good faith determined that the matters relating to such
notice do not constitute material, nonpublic information relating to the Company or its Subsidiaries, the Company shall within one (1) Business Day after any such receipt or delivery publicly disclose such material, nonpublic information on a
Current Report on Form 8-K or otherwise. In the event that the Company believes that a notice contains material, nonpublic information relating to the Company or its Subsidiaries, the Company so shall indicate to such Holder contemporaneously with
delivery of such notice, and in the absence of any such indication, the Holder shall be allowed to presume that all matters relating to such notice do not constitute material, nonpublic information relating to the Company or its Subsidiaries.

 [Signature Page Follows] 

  
 - 33 -

  
 IN WITNESS WHEREOF,
the Company has caused this Note to be duly executed as of the Issuance Date set out above. 
  

					
	BIOVEST INTERNATIONAL, INC.
		
	By:	 	  

		 	Name:	 	
		 	Title:	 	

  
 EXHIBIT I

 BIOVEST INTERNATIONAL, INC. 
 CONVERSION NOTICE 
 Reference is made to the Convertible Note (the “Note”)
issued to the undersigned by Biovest International, Inc., a Delaware corporation (the “Company”). In accordance with and pursuant to the Note, the undersigned hereby elects to convert the Conversion Amount (as defined in the Note)
of the Note indicated below into shares of Common Stock par value par value $0.01 per share (the “Common Stock”) of the Company, as of the date specified below. 

 

			
	 Date of Conversion:
	 	  

			
		
	 Aggregate Conversion Amount to be converted:
	 	  

	
	
	Please confirm the following information:

			
		
	 Conversion Price:
	 	  

			
		
	 Number of shares of Common Stock to be issued:
	 	  

	
	
	 Is the Variable Price Formulation being relied on pursuant to Section 7(a)(vi)? (check one)
YES        NO        

	
	Please issue the Common Stock into which the Note is being converted in the following name and to the following
address:

			
		
	 Issue to:
	 	  

		
		 	  

		
		 	  

			
		
	 Facsimile Number:
	 	  

			
		
	 Authorization:
	 	  

			
		
	 By:
	 	  

			
		
	 Title:
	 	  

			
		
	Dated:	 	  

  

			
	 Account Number:
	  	  

	
	   (if electronic book entry transfer)

			
		
	 Transaction Code Number:
	 	  

	
	   (if electronic book entry transfer)

  
 ACKNOWLEDGMENT

 The Company hereby acknowledges this Conversion Notice and hereby directs StockTrans, Inc. to issue the above indicated
number of shares of Common Stock in accordance with the Transfer Agent Instructions dated                 , 2010 from the Company and acknowledged and agreed to
by StockTrans, Inc. 
  

					
	BIOVEST INTERNATIONAL, INC.
		
	By:	 	  

		 	Name:	 	
		 	Title:	 	

  
 Exhibit B-1

 [FORM OF SERIES A WARRANT] 
 NEITHER THE ISSUANCE AND SALE OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE EXERCISABLE HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, OR (B) AN OPINION OF COUNSEL SELECTED BY THE HOLDER, IN A FORM REASONABLY SATISFACTORY TO THE COMPANY, THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT OR (II) UNLESS THE HOLDER PROVIDES THE COMPANY WITH REASONABLE ASSURANCE THAT SUCH
SECURITIES CAN BE SOLD PURSUANT TO RULE 144 OR RULE 144A UNDER SAID ACT (COLLECTIVELY, “RULE 144”) AND APPLICABLE STATE SECURITIES LAWS. NOTWITHSTANDING THE FOREGOING, THE SECURITIES MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN
ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT SECURED BY THE SECURITIES. 
 BIOVEST INTERNATIONAL, INC. 

WARRANT TO PURCHASE COMMON STOCK 

Warrant No.:              
 Number of Shares of Common Stock:                      

Date of Issuance: [            ], 2010 (“Issuance Date”) 

Biovest International, Inc., a company organized under the laws of Delaware (the “Company”), hereby
certifies that, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, [BUYER], the registered holder hereof or its permitted assigns (the “Holder”), is entitled, subject to the terms set
forth below, to purchase from the Company, at the Exercise Price (as defined below) then in effect, upon surrender of this Warrant to Purchase Common Stock (including any Warrants to Purchase Common Stock issued in exchange, transfer or replacement
hereof, the “Warrant”), at any time or times on or after the Effective Date (as defined in the Securities Purchase Agreement) (the “Initial Exercisability Date”), but not after 11:59 p.m., New York time, on the
Expiration Date (as defined below),                     
(                    )1 fully paid nonassessable shares of Common Stock, par value $0.01 per share, subject to adjustment as provided herein
(the “Warrant Shares”). Except as otherwise defined herein, capitalized terms in this Warrant shall have the meanings set forth in Section 16. This Warrant is one of the Series A Warrants to purchase Common Stock (the
“SPA Warrants”) issued pursuant to Section 1 of that certain Securities Purchase Agreement, dated as of October     , 2010 (the “Subscription Date”), by and among the Company and the
investors (the “Buyers”) referred to therein (the “Securities Purchase Agreement”). 
  

	1	 Insert number of shares equal to such holder’s pro rata share of the aggregate principal amount of SPA Securities sold by the Company pursuant to
the Securities Purchase Agreement divided by $0.91. 

  
 1. EXERCISE OF
WARRANT. 
 (a) Mechanics of Exercise. Subject to the terms and conditions hereof (including,
without limitation, the limitations set forth in Section 1(f)), this Warrant may be exercised by the Holder on any time or times on or after the Initial Exercisability Date, in whole or in part, by (i) delivery of a written notice, in the
form attached hereto as Exhibit A (the “Exercise Notice”), of the Holder’s election to exercise this Warrant and (ii) (A) payment to the Company of an amount equal to the applicable Exercise Price multiplied by the
number of Warrant Shares as to which this Warrant is being exercised (the “Aggregate Exercise Price”) in cash or by wire transfer of immediately available funds or (B) by notifying the Company that this Warrant is being
exercised pursuant to a Cashless Exercise (as defined in Section 1(d)). The Holder shall not be required to deliver the original Warrant in order to effect an exercise hereunder. Execution and delivery of the Exercise Notice with respect to
less than all of the Warrant Shares shall have the same effect as cancellation of the original Warrant and issuance of a new Warrant evidencing the right to purchase the remaining number of Warrant Shares. On or before the first (1st) Trading Day following the date on which the Company has
received the Exercise Notice), the Company shall transmit by facsimile an acknowledgment of confirmation of receipt of the Exercise Notice to the Holder and the Company’s transfer agent (the “Transfer Agent”). On or before the
third (3rd) Trading Day following the date on which
the Company has received the Exercise Notice (the “Share Delivery Date”) so long as the Holder delivers the Aggregate Exercise Price (or notice of a Cashless exercise) on or prior to the Share Delivery Date, the Company shall
(X) provided that the Transfer Agent is participating in The Depository Trust Company (“DTC”) Fast Automated Securities Transfer Program, upon the request of the Holder, credit such aggregate number of Warrant Shares to which
the Holder is entitled pursuant to such exercise to the Holder’s or its designee’s balance account with DTC through its Deposit / Withdrawal At Custodian system, or (Y) if the Transfer Agent is not participating in the DTC Fast
Automated Securities Transfer Program, issue and dispatch by overnight courier to the address as specified in the Exercise Notice, a certificate, registered in the Company’s share register in the name of the Holder or its designee, for the
number of shares of Common Stock to which the Holder is entitled pursuant to such exercise. The Company shall be responsible for all fees and expenses of the Transfer Agent and all fees and expenses with respect to the issuance of Warrant Shares via
DTC, if any. Upon delivery of the Exercise Notice, so long as the Holder delivers the Aggregate Exercise Price (or notice of a Cashless Exercise) on or prior to the Share Delivery Date, the Holder shall be deemed for all corporate purposes to have
become the holder of record of the Warrant Shares with respect to which this Warrant has been exercised, irrespective of the date such Warrant Shares are credited to the Holder’s DTC account or the date of delivery of the certificates
evidencing such Warrant Shares, as the case may be. If this Warrant is submitted in connection with any exercise pursuant to this Section 1(a) and the number of Warrant Shares represented by this Warrant submitted for exercise is greater than
the number of Warrant Shares being acquired upon an exercise, then the Company shall as soon as practicable and in no event later than three (3) Trading Days after any exercise and at its own expense, issue a new Warrant (in accordance with
Section 7(d)) representing the right to purchase the number of Warrant Shares issuable immediately prior to such exercise under this Warrant, less the number of Warrant Shares with respect to which this Warrant is exercised. No

  
 - 2 -

 
fractional shares of Common Stock are to be issued upon the exercise of this Warrant, but rather the number of shares of Common Stock to be issued shall be rounded up to the nearest whole number.
The Company shall pay any and all taxes which may be payable with respect to the issuance and delivery of Warrant Shares upon exercise of this Warrant. 
 (b) Exercise Price. For purposes of this Warrant, “Exercise Price” means $        , subject to adjustment as provided herein.

 (c) Company’s Failure to Timely Deliver Securities. If the Company shall fail for any reason or for no reason to
issue to the Holder within three (3) Trading Days of receipt of the Exercise Notice, so long as the Holder delivers the Aggregate Exercise Price (or notice of Cashless Exercise) on or prior to the Share Delivery Date, a certificate for the
number of shares of Common Stock to which the Holder is entitled and register such shares of Common Stock on the Company’s share register or to credit the Holder’s balance account with DTC for such number of shares of Common Stock to which
the Holder is entitled upon the Holder’s exercise of this Warrant or pursuant to the Company’s obligation pursuant to clause (ii) below, and if on or after such Trading Day the Holder purchases (in an open market transaction or
otherwise) shares of Common Stock to deliver in satisfaction of a sale by the Holder of shares of Common Stock issuable upon such exercise that the Holder anticipated receiving from the Company (a “Buy-In”), then the Company shall,
within three (3) Trading Days after the Holder’s request and in the Holder’s discretion, either (i) pay cash to the Holder in an amount equal to the Holder’s total purchase price (including brokerage commissions and other
reasonable out-of-pocket expenses, if any) for the shares of Common Stock so purchased (the “Buy-In Price”), at which point the Company’s obligation to deliver such certificate (and to issue such shares of Common Stock) or
credit such Holder’s balance account with DTC shall terminate, or (ii) promptly honor its obligation to deliver to the Holder a certificate or certificates representing such shares of Common Stock or credit such Holder’s balance
account with DTC and pay cash to the Holder in an amount equal to the excess (if any) of the Buy-In Price over the product of (A) such number of shares of Common Stock, times (B) the Closing Bid Price on the date of exercise. 

(d) Cashless Exercise. Notwithstanding anything contained herein to the contrary, if, after the Effective Date, any Warrant
Shares that are the subject of the Exercise Notice cannot be issued pursuant to Section 1145 of the Bankruptcy Code (as defined in the Securities Purchase Agreement) or is otherwise not freely transferable without any restrictions or
limitations, the Holder may, in its sole discretion, exercise this Warrant in whole or in part and, in lieu of making the cash payment otherwise contemplated to be made to the Company upon such exercise in payment of the Aggregate Exercise Price,
elect instead to receive upon such exercise the “Net Number” of shares of Common Stock determined according to the following formula (a “Cashless Exercise”): 

Net Number = (A x B) - (A x C) 
                                   
  B 

  
 - 3 -

  
 For purposes of the
foregoing formula: 
  

			
	A=	 	the total number of shares with respect to which this Warrant is then being exercised.
		
	B=	 	the Weighted Average Price of the Common Stock (as reported by Bloomberg) for the five (5) consecutive Trading Days ending on the date immediately preceding the date of the
Exercise Notice.
		
	C=	 	the Exercise Price then in effect for the applicable Warrant Shares at the time of such exercise.

(e) Disputes. In the case of a dispute as to the determination of the Exercise Price or the arithmetic calculation of the Warrant
Shares, the Company shall promptly issue to the Holder the number of Warrant Shares that are not disputed and resolve such dispute in accordance with Section 12. 
 (f) Limitations on Exercises. The Company shall not effect the exercise of this Warrant, and the Holder shall not have the right to exercise this Warrant, to the extent that after giving effect to
such exercise, such Person (together with such Person’s affiliates) would beneficially own in excess of 4.99% (the “Maximum Percentage”) of the shares of Common Stock outstanding immediately after giving effect to such
exercise. For purposes of the foregoing sentence, the aggregate number of shares of Common Stock beneficially owned by such Person and its affiliates shall include the number of shares of Common Stock issuable upon exercise of this Warrant with
respect to which the determination of such sentence is being made, but shall exclude shares of Common Stock which would be issuable upon (i) exercise of the remaining, unexercised portion of this Warrant beneficially owned by such Person and
its affiliates and (ii) exercise or conversion of the unexercised or unconverted portion of any other securities of the Company beneficially owned by such Person and its affiliates (including, without limitation, any convertible notes or
convertible preferred stock or warrants) subject to a limitation on conversion or exercise analogous to the limitation contained herein. Except as set forth in the preceding sentence, for purposes of this paragraph, beneficial ownership shall be
calculated in accordance with Section 13(d) of the Securities Exchange Act of 1934, as amended (the “1934 Act”). For purposes of this Warrant, in determining the number of outstanding shares of Common Stock, the Holder may rely
on the number of outstanding shares of Common Stock as reflected in (1) the Company’s most recent Form 10-K, Form 10-Q, Current Report on Form 8-K or other public filing with the Securities and Exchange Commission, as the case may be,
(2) a more recent public announcement by the Company or (3) any other notice by the Company or the Transfer Agent setting forth the number of shares of Common Stock outstanding. For any reason at any time, upon the written or oral request
of the Holder, the Company shall within one (1) Business Day confirm orally and in writing to the Holder the number of shares of Common Stock then outstanding. In any case, the number of outstanding shares of Common Stock shall be determined
after giving effect to the 

  
 - 4 -

 
conversion or exercise of securities of the Company, including the SPA Warrants, by the Holder and its affiliates since the date as of which such number of outstanding shares of Common Stock was
reported. By written notice to the Company, the Holder may from time to time increase or decrease the Maximum Percentage to any other percentage not in excess of 9.99% specified in such notice; provided that (i) any such increase will not be
effective until the sixty-first (61st) day after such
notice is delivered to the Company, and (ii) any such increase or decrease will apply only to the Holder and not to any other holder of SPA Warrants. The provisions of this paragraph shall be construed and implemented in a manner otherwise than
in strict conformity with the terms of this Section 1(f) to correct this paragraph (or any portion hereof) which may be defective or inconsistent with the intended beneficial ownership limitation herein contained or to make changes or
supplements necessary or desirable to properly give effect to such limitation. 
 (g) Insufficient Authorized Shares. If
at any time while this Warrant remains outstanding the Company does not have a sufficient number of authorized and unreserved shares of Common Stock to satisfy its obligation to reserve for issuance upon exercise of this Warrant at least a number of
shares of Common Stock equal to 130% (the “Required Reserve Amount”) of the maximum number of shares of Common Stock as shall from time to time be necessary to effect the exercise of all of this Warrant then outstanding (an
“Authorized Share Failure”), then the Company shall immediately take all action necessary to increase the Company’s authorized shares of Common Stock to an amount sufficient to allow the Company to reserve the Required Reserve
Amount for this Warrant then outstanding. Without limiting the generality of the foregoing sentence, as soon as practicable after the date of the occurrence of an Authorized Share Failure, but in no event later than sixty (60) days after the
occurrence of such Authorized Share Failure, the Company shall hold a meeting of its stockholders for the approval of an increase in the number of authorized shares of Common Stock. In connection with such meeting, the Company shall provide each
stockholder with a proxy statement and shall use its reasonable best efforts to solicit its stockholders’ approval of such increase in authorized shares of Common Stock and to cause its board of directors to recommend to the stockholders that
they approve such proposal. 
 2. ADJUSTMENT OF EXERCISE PRICE AND NUMBER OF WARRANT SHARES. The Exercise Price and the
number of Warrant Shares shall be adjusted from time to time as follows: 
 (a) Adjustment upon Issuance of shares of Common
Stock. If and whenever on or after the Subscription Date, the Company issues or sells, or in accordance with this Section 2 is deemed to have issued or sold, any shares of Common Stock (including the issuance or sale of shares of Common
Stock owned or held by or for the account of the Company, but excluding shares of Common Stock deemed to have been issued by the Company in connection with any Excluded Securities (as defined in the SPA Securities)) for a consideration per share
(the “New Issuance Price”) less than a price (the “Applicable Price”) equal to the Exercise Price in effect immediately prior to such issue or sale or deemed issuance or sale (the foregoing a “Dilutive
Issuance”), then immediately after such Dilutive Issuance, the Exercise Price then in effect shall be reduced to an amount equal to the New Issuance Price. Upon each such adjustment of the Exercise Price hereunder, the number of Warrant
Shares issuable immediately prior to such Dilutive Issuance shall be adjusted to the number of shares of Common Stock determined by multiplying the Exercise Price in effect immediately prior to such

  
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adjustment by the number of Warrant Shares acquirable upon exercise of this Warrant immediately prior to such adjustment and dividing the product thereof by the Exercise Price resulting from such
adjustment. For purposes of determining the adjusted Exercise Price under this Section 2(a), the following shall be applicable: 
 (i) Issuance of Options. If the Company in any manner grants any Options and the lowest price per share for which one share of Common Stock is issuable upon the exercise of any such Option or upon
conversion, exercise or exchange of any Convertible Securities issuable upon exercise of any such Option is less than the Applicable Price, then such share of Common Stock shall be deemed to be outstanding and to have been issued and sold by the
Company at the time of the granting or sale of such Option for such price per share. For purposes of this Section 2(a)(i), the “lowest price per share for which one share of Common Stock is issuable upon exercise of such Options or upon
conversion, exercise or exchange of such Convertible Securities issuable upon exercise of any such Option” shall be equal to the sum of the lowest amounts of consideration (if any) received or receivable by the Company with respect to any one
share of Common Stock upon the granting or sale of the Option, upon exercise of the Option and upon conversion, exercise or exchange of any Convertible Security issuable upon exercise of such Option less any consideration paid or payable by the
Company with respect to such one share of Common Stock upon the granting or sale of such Option, upon exercise of such Option and upon conversion exercise or exchange of any Convertible Security issuable upon exercise of such Option. No further
adjustment of the Exercise Price or number of Warrant Shares shall be made upon the actual issuance of such shares of Common Stock or of such Convertible Securities upon the exercise of such Options or upon the actual issuance of such shares of
Common Stock upon conversion, exercise or exchange of such Convertible Securities. 
 (ii) Issuance of Convertible
Securities. If the Company in any manner issues or sells any Convertible Securities and the lowest price per share for which one share of Common Stock is issuable upon the conversion, exercise or exchange thereof is less than the Applicable
Price, then such share of Common Stock shall be deemed to be outstanding and to have been issued and sold by the Company at the time of the issuance or sale of such Convertible Securities for such price per share. For the purposes of this
Section 2(a)(ii), the “lowest price per share for which one share of Common Stock is issuable upon the conversion, exercise or exchange thereof” shall be equal to the sum of the lowest amounts of consideration (if any) received or
receivable by the Company with respect to one share of Common Stock upon the issuance or sale of the Convertible Security and upon conversion, exercise or exchange of such Convertible Security less any consideration paid or payable by the Company
with respect to such one share of Common Stock upon the issuance or sale of such Convertible Security and upon conversion, exercise or exchange of such 

  
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Convertible Security. No further adjustment of the Exercise Price or number of Warrant Shares shall be made upon the actual issuance of such shares of Common Stock upon conversion, exercise or
exchange of such Convertible Securities, and if any such issue or sale of such Convertible Securities is made upon exercise of any Options for which adjustment of this Warrant has been or is to be made pursuant to other provisions of this
Section 2(a), no further adjustment of the Exercise Price or number of Warrant Shares shall be made by reason of such issue or sale. 
 (iii) Change in Option Price or Rate of Conversion. If the purchase price provided for in any Options issued after the Subscription Date, the additional consideration, if any, payable upon the
issue, conversion, exercise or exchange of any Convertible Securities issued after the Subscription Date, or the rate at which any Convertible Securities issued after the Subscription Date are convertible into or exercisable or exchangeable for
shares of Common Stock increases or decreases at any time, the Exercise Price and the number of Warrant Shares in effect at the time of such increase or decrease shall be adjusted to the Exercise Price and the number of Warrant Shares which would
have been in effect at such time had such Options or Convertible Securities provided for such increased or decreased purchase price, additional consideration or increased or decreased conversion rate, as the case may be, at the time initially
granted, issued or sold. Additionally, if the terms of any Option or Convertible Security that was outstanding as of the date of the Subscription Date is increased or decreased in the manner described in the immediately preceding sentence, then such
Option or Convertible Security and the shares of Common Stock deemed issuable upon exercise, conversion or exchange thereof shall be deemed to have been issued as of the date of such increase or decrease, but in such event the amount of the
adjustment to the Exercise Price pursuant to this Section 2 will not be proportionately greater than the proportionate amount of the increase or decrease. No adjustment pursuant to this Section 2(a) shall be made if such adjustment would
result in an increase of the Exercise Price then in effect or a decrease in the number of Warrant Shares. 
 (iv) Calculation
of Consideration Received. In case any Option is issued in connection with the issue or sale of other securities of the Company, together comprising one integrated transaction, (x) the Options will be deemed to have been issued for the
Option Value and (y) the other securities issued or sold in such integrated transaction shall be deemed to have been issued for the difference of (I) the aggregate consideration received by the Company less any consideration paid or
payable by the Company pursuant to the terms of such other securities of the Company, less (II) the Option Value. If any shares of Common Stock, Options or Convertible Securities are issued or sold or deemed to have been issued or sold for cash, the
consideration received therefor will be deemed to be the net amount received or receivable by the Company therefor. If any shares 

  
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of Common Stock, Options or Convertible Securities are issued or sold for a consideration other than cash, the amount of such consideration received by the Company will be the fair value of such
consideration, except where such consideration consists of securities, in which case the amount of consideration received by the Company will be the Closing Sale Price of such security on the date of receipt. If any shares of Common Stock, Options
or Convertible Securities are issued to the owners of the non-surviving entity in connection with any merger in which the Company is the surviving entity, the amount of consideration therefor will be deemed to be the fair value of such portion of
the net assets and business of the non-surviving entity as is attributable to such shares of Common Stock, Options or Convertible Securities, as the case may be. The fair value of any consideration other than cash or securities will be determined
jointly by the Company and the Required Holders. If such parties are unable to reach agreement within ten (10) days after the occurrence of an event requiring valuation (the “Valuation Event”), the fair value of such
consideration will be determined within five (5) Trading Days after the tenth (10th) day following the Valuation Event by an independent, reputable appraiser jointly selected by the Company and the Required Holders. The determination of such appraiser shall be final and binding
upon all parties absent manifest error and the fees and expenses of such appraiser shall be borne by the Company. 
 (v)
Record Date. If the Company takes a record of the holders of shares of Common Stock for the purpose of entitling them (A) to receive a dividend or other distribution payable in shares of Common Stock, Options or in Convertible Securities
or (B) to subscribe for or purchase shares of Common Stock, Options or Convertible Securities, then such record date will be deemed to be the date of the issue or sale of the shares of Common Stock deemed to have been issued or sold upon the
declaration of such dividend or the making of such other distribution or the date of the granting of such right of subscription or purchase, as the case may be. 
 (b) Voluntary Adjustment By Company. The Company may at any time during the term of this Warrant reduce the then current Exercise Price to any amount and for any period of time deemed appropriate
by the Board of Directors of the Company. 
 (c) Adjustment upon Subdivision or Combination of shares of Common Stock.
If the Company at any time on or after the Subscription Date subdivides (by any stock split, stock dividend, recapitalization or otherwise) one or more classes of its outstanding shares of Common Stock into a greater number of shares, the Exercise
Price in effect immediately prior to such subdivision will be proportionately reduced and the number of Warrant Shares will be proportionately increased. If the Company at any time on or after the Subscription Date combines (by combination, reverse
stock split or otherwise) one or more classes of its outstanding shares of Common Stock into a smaller number of shares, the Exercise Price in effect immediately prior to such combination will be proportionately increased and the

  
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number of Warrant Shares will be proportionately decreased. Any adjustment under this Section 2(c) shall become effective at the close of business on the date the subdivision or combination
becomes effective. 
 (d) Holder’s Right of Alternative Exercise Price Following Issuance of Variable Securities.
If the Company issues or sells or, in accordance with this Section 2 is deemed to have issued or sold any Options or Convertible Securities after the Issuance Date that are convertible into or exchangeable or exercisable for shares of Common
Stock at a price which varies or may vary with the market price of the shares of Common Stock, including by way of one or more reset(s) to a fixed price (each of the formulations for such variable price being herein referred to as, a
“Variable Price Formulation”), the Company shall provide written notice thereof via facsimile and overnight courier to the Holder (the “Variable Notice”) on the date of issuance or deemed issuance of such
Convertible Securities or Options. From and after the date the Company issues or is deemed to have issued any such Convertible Securities or Options with a Variable Price Formulation, but only for so long as such Convertible Securities or Options
are outstanding, the Holder shall have the right, but not the obligation, in its sole discretion to substitute any of the applicable Variable Price Formulation for the Exercise Price upon exercise of the Warrants held by it by designating in the
Exercise Notice delivered upon exercise of such Warrant that solely for purposes of such exercise the Holder is relying on the Variable Price Formulation rather than the Exercise Price then in effect. The Holder’s election to rely on a Variable
Price Formulation for a particular exercise of Warrants shall not obligate the Holder to rely on a Variable Price Formulation for any future exercise of Warrants. In connection with determining the “lowest price per share for which one share of
Common Stock is issuable upon exercise of any Option” pursuant to Section 2(a)(i) and the “lowest price per share for which one share of Common Stock is issuable upon the conversion, exercise or exchange of a Convertible
Security” pursuant to Section 2(a)(ii), as such terms pertain solely to any Variable Price Formulation contained in any Option or Convertible Securities issued after the Issuance Date, such lowest price shall equal the lesser of
(i) the fixed exercise, conversion or exchange price set forth in the applicable Option or Convertible Security and (ii) the Variable Price Formulation contained in the applicable Option or Convertible Security, calculated as if such
Option or Convertible Security were converted, exercised or exchanged as of the date of issuance of the applicable Option or Convertible Security. 
 (e) Price Adjusted Market Price Adjustment. If the Price Adjusted Market Price is less than the Exercise Price in effect on the Issuance Date, then on December 22, 2010, the Exercise Price
then in effect shall be reduced (but in no event increased) to 120% of the Price Adjusted Market Price, provided that the Exercise Price shall not be reduced below $0.60 (subject to adjustment for stock splits, stock dividends, recapitalizations or
other similar events with respect to the Company’s Common Stock) pursuant to this Section 2(e). For the avoidance of doubt, if the adjustment in the immediately preceding sentence would otherwise result in an increase in the Exercise Price
hereunder, no adjustment shall be made. Upon the foregoing adjustment to the Exercise Price, the number of Warrant Shares issuable immediately prior to such adjustment shall be adjusted to the number of shares of Common Stock determined by
multiplying .9375 by the product of (A) the Exercise Price in effect immediately prior to such adjustment and (B) the number of Warrant Shares acquirable upon exercise in full of this Warrant immediately prior to such adjustment and dividing the
product thereof by the Exercise Price resulting from such adjustment. 

  
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 3. RIGHTS UPON
DISTRIBUTION OF ASSETS. If the Company shall declare or make any dividend or other distribution of its assets (or rights to acquire its assets) to holders of shares of Common Stock, by way of return of capital or otherwise (including, without
limitation, any distribution of cash, stock or other securities, property or options by way of a dividend, spin off, reclassification, corporate rearrangement, scheme of arrangement or other similar transaction) (a “Distribution”),
at any time after the issuance of this Warrant, then, in each such case, upon an exercise of this Warrant, in whole or in part, the Holder will be entitled to receive the amount of any such Distribution that the Holder would have received if the
Holder had held, immediately before the date on which a record is taken for the declaration or payment of the Distribution, or, if no such record date is taken, the date as of which the record holders of shares of Common Stock are to be determined
for the declaration or payment of the Distribution, the number of shares of Common Stock that the Holder is entitled to receive upon such exercise (without taking into account any limitations or restrictions on the convertibility of this Warrant).

 4. PURCHASE RIGHTS; FUNDAMENTAL TRANSACTIONS. 

(a) Purchase Rights. In addition to any adjustments pursuant to Section 2 above, if at any time the Company grants, issues
or sells any Options, Convertible Securities or rights to purchase stock, warrants, securities or other property pro rata to the record holders of any class of Common Stock (the “Purchase Rights”), then the Holder will be entitled
to acquire, upon the terms applicable to such Purchase Rights, the aggregate Purchase Rights which the Holder could have acquired if the Holder had held the number of shares of Common Stock acquirable upon complete exercise of this Warrant (without
regard to any limitations on the exercise of this Warrant) immediately before the date on which a record is taken for the grant, issuance or sale of such Purchase Rights, or, if no such record is taken, the date as of which the record holders of
shares of Common Stock are to be determined for the grant, issue or sale of such Purchase Rights. 
 (b) Fundamental
Transactions. The Company shall not enter into or be party to a Fundamental Transaction unless (i) the Successor Entity assumes in writing all of the obligations of the Company under this Warrant and the other Transaction Documents in
accordance with the provisions of this Section (4)(b) pursuant to written agreements in form and substance satisfactory to the Required Holders and approved by the Required Holders prior to such Fundamental Transaction, including agreements to
deliver to each holder of the SPA Warrants in exchange for such Warrants a security of the Successor Entity evidenced by a written instrument substantially similar in form and substance to this Warrant, including, without limitation, an adjusted
exercise price equal to the value for the shares of Common Stock reflected by the terms of such Fundamental Transaction, and exercisable for a corresponding number of shares of capital stock equivalent to the shares of Common Stock acquirable and
receivable upon exercise of this Warrant (without regard to any limitations on the exercise of this Warrant) prior to such Fundamental Transaction, and satisfactory to the Required Holders and (ii) the Successor Entity (including its Parent
Entity) is a publicly traded corporation whose common stock is quoted on or listed for trading on an Eligible Market. Upon the occurrence of any Fundamental Transaction, the Successor Entity shall succeed to, and be substituted for (so that from and
after the date of such Fundamental Transaction, the provisions of this Warrant referring to the “Company” shall refer instead to the Successor Entity), and may exercise every right and power of the Company and shall assume all of the
obligations of the Company under this Warrant with 

  
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the same effect as if such Successor Entity had been named as the Company herein. Upon consummation of the Fundamental Transaction, the Successor Entity shall deliver to the Holder confirmation
that there shall be issued upon exercise of this Warrant at any time after the consummation of the Fundamental Transaction, in lieu of the shares of Common Stock (or other securities, cash, assets or other property) issuable upon the exercise of the
Warrant prior to such Fundamental Transaction, such shares of the publicly traded common stock or common shares (or its equivalent) of the Successor Entity (including its Parent Entity) which the Holder would have been entitled to receive upon the
happening of such Fundamental Transaction had this Warrant been converted immediately prior to such Fundamental Transaction, as adjusted in accordance with the provisions of this Warrant. In addition to and not in substitution for any other rights
hereunder, prior to the consummation of any Fundamental Transaction pursuant to which holders of shares of Common Stock are entitled to receive securities or other assets with respect to or in exchange for shares of Common Stock (a
“Corporate Event”), the Company shall make appropriate provision to insure that the Holder will thereafter have the right to receive upon an exercise of this Warrant at any time after the consummation of the Corporate Event but
prior to the Expiration Date, in lieu of shares of Common Stock (or other securities, cash, assets or other property) purchasable upon the exercise of this Warrant prior to such Corporate Event, such shares of stock, securities, cash, assets or any
other property whatsoever (including warrants or other purchase or subscription rights) which the Holder would have been entitled to receive upon the happening of such Corporate Event had this Warrant been exercised immediately prior to such
Corporate Event. Provision made pursuant to the preceding sentence shall be in a form and substance reasonably satisfactory to the Required Holders. The provisions of this Section shall apply similarly and equally to successive Fundamental
Transactions and Corporate Events and shall be applied without regard to any limitations on the exercise of this Warrant. 
 (c) Notwithstanding the foregoing, in the event of a Change of Control, at the request of the Holder delivered before the ninetieth (90th) day after the consummation of such Change of Control, the Company (or the Successor Entity) shall purchase this
Warrant from the Holder by paying to the Holder, within five (5) Business Days after such request (or, if later, on the effective date of the Change of Control), cash in an amount equal to the Black Scholes Value of the remaining unexercised
portion of this Warrant on the date of such Change of Control. 
 5. NONCIRCUMVENTION. The Company hereby covenants and
agrees that the Company will not, by amendment of its Certificate of Incorporation or Bylaws, or through any reorganization, transfer of assets, consolidation, merger, scheme of arrangement, dissolution, issue or sale of securities, or any other
voluntary action, avoid or seek to avoid the observance or performance of any of the terms of this Warrant, and will at all times in good faith carry out all the provisions of this Warrant and take all action as may be required to protect the rights
of the Holder. Without limiting the generality of the foregoing, the Company (i) shall not increase the par value of any shares of Common Stock receivable upon the exercise of this Warrant above the Exercise Price then in effect,
(ii) shall take all such actions as may be necessary or appropriate in order that the Company may validly and legally issue fully paid and nonassessable shares of Common Stock upon the exercise of this Warrant, and (iii) shall, so long as
any of the SPA Warrants are outstanding, take all action necessary to reserve and keep available out of its authorized and unissued shares of Common Stock, solely for the purpose of effecting the exercise of the SPA Warrants, 130% of the number of
shares of Common Stock as shall from time to time be necessary to effect the exercise of the SPA Warrants then outstanding (without regard to any limitations on exercise). 

  
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 6. WARRANT HOLDER
NOT DEEMED A STOCKHOLDER. Except as otherwise specifically provided herein, the Holder, solely in such Person’s capacity as a holder of this Warrant, shall not be entitled to vote or receive dividends or be deemed the holder of share
capital of the Company for any purpose, nor shall anything contained in this Warrant be construed to confer upon the Holder, solely in such Person’s capacity as the Holder of this Warrant, any of the rights of a stockholder of the Company or
any right to vote, give or withhold consent to any corporate action (whether any reorganization, issue of stock, reclassification of stock, consolidation, merger, conveyance or otherwise), receive notice of meetings, receive dividends or
subscription rights, or otherwise, prior to the issuance to the Holder of the Warrant Shares which such Person is then entitled to receive upon the due exercise of this Warrant. In addition, nothing contained in this Warrant shall be construed as
imposing any liabilities on the Holder to purchase any securities (upon exercise of this Warrant or otherwise) or as a stockholder of the Company, whether such liabilities are asserted by the Company or by creditors of the Company. Notwithstanding
this Section 6, the Company shall provide the Holder with copies of the same notices and other information given to the stockholders of the Company generally, contemporaneously with the giving thereof to the stockholders. 

7. REISSUANCE OF WARRANTS. 
 (a) Transfer of Warrant. If this Warrant is to be transferred, the Holder shall surrender this Warrant to the Company, whereupon the Company will forthwith issue and deliver upon the order of the
Holder a new Warrant (in accordance with Section 7(d)), registered as the Holder may request, representing the right to purchase the number of Warrant Shares being transferred by the Holder and, if less than the total number of Warrant Shares
then underlying this Warrant is being transferred, a new Warrant (in accordance with Section 7(d)) to the Holder representing the right to purchase the number of Warrant Shares not being transferred. 

(b) Lost, Stolen or Mutilated Warrant. Upon receipt by the Company of evidence reasonably satisfactory to the Company of the
loss, theft, destruction or mutilation of this Warrant, and, in the case of loss, theft or destruction, of any indemnification undertaking by the Holder to the Company in customary form and, in the case of mutilation, upon surrender and cancellation
of this Warrant, the Company shall execute and deliver to the Holder a new Warrant (in accordance with Section 7(d)) representing the right to purchase the Warrant Shares then underlying this Warrant. 

(c) Exchangeable for Multiple Warrants. This Warrant is exchangeable, upon the surrender hereof by the Holder at the principal
office of the Company, for a new Warrant or Warrants (in accordance with Section 7(d)) representing in the aggregate the right to purchase the number of Warrant Shares then underlying this Warrant, and each such new Warrant will represent the
right to purchase such portion of such Warrant Shares as is designated by the Holder at the time of such surrender; provided, however, that no Warrants for fractional shares of Common Stock shall be given. 

  
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 (d) Issuance of
New Warrants. Whenever the Company is required to issue a new Warrant pursuant to the terms of this Warrant, such new Warrant (i) shall be of like tenor with this Warrant, (ii) shall represent, as indicated on the face of such new
Warrant, the right to purchase the Warrant Shares then underlying this Warrant (or in the case of a new Warrant being issued pursuant to Section 7(a) or Section 7(c), the Warrant Shares designated by the Holder which, when added to the
number of shares of Common Stock underlying the other new Warrants issued in connection with such issuance, does not exceed the number of Warrant Shares then underlying this Warrant), (iii) shall have an issuance date, as indicated on the face
of such new Warrant which is the same as the Issuance Date, and (iv) shall have the same rights and conditions as this Warrant. 
 8. NOTICES. Whenever notice is required to be given under this Warrant, unless otherwise provided herein, such notice shall be given in accordance with Section 9(f) of the Securities Purchase
Agreement. The Company shall provide the Holder with prompt written notice of all actions taken pursuant to this Warrant, including in reasonable detail a description of such action and the reason therefor. Without limiting the generality of the
foregoing, the Company will give written notice to the Holder (i) immediately upon any adjustment of the Exercise Price, setting forth in reasonable detail, and certifying, the calculation of such adjustment and (ii) at least fifteen
(15) days prior to the date on which the Company closes its books or takes a record (A) with respect to any dividend or distribution upon the shares of Common Stock, (B) with respect to any grants, issuances or sales of any Options,
Convertible Securities or rights to purchase stock, warrants, securities or other property to holders of shares of Common Stock or (C) for determining rights to vote with respect to any Fundamental Transaction, dissolution or liquidation,
provided in each case that such information shall be made known to the public prior to or in conjunction with such notice being provided to the Holder. 
 9. AMENDMENT AND WAIVER. Except as otherwise provided herein, the provisions of this Warrant may be amended and the Company may take any action herein prohibited, or omit to perform any act herein
required to be performed by it, only if the Company has obtained the written consent of the Required Holders. No such amendment shall be effective to the extent that it applies to less than all of the holders of the SPA Warrants then outstanding.

 10. GOVERNING LAW. This Warrant shall be governed by and construed and enforced in accordance with, and all questions
concerning the construction, validity, interpretation and performance of this Warrant shall be governed by, the internal laws of the State of Florida, without giving effect to any choice of law or conflict of law provision or rule (whether of the
State of Florida or any other jurisdictions) that would cause the application of the laws of any jurisdictions other than the State of Florida. The Holder and the Company hereby irrevocably submit to the exclusive jurisdiction of the Bankruptcy
Court for the adjudication of any dispute hereunder or in connection herewith or with any transaction contemplated hereby or discussed herein, and hereby irrevocably waive, and agree not to assert in any suit, action or proceeding, any claim that it
is not personally subject to the jurisdiction of any such court, that such suit, action or proceeding is brought in an inconvenient forum or that the venue of such suit, action or proceeding is improper. Nothing contained herein shall be deemed to
limit in any way any right to serve process in any manner permitted by law. Nothing contained herein shall be deemed or operate to preclude the Holder from bringing suit or taking other legal action against the Company in any other jurisdiction to
collect on the Company’s obligations to the Holder, to 

  
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realize on any collateral or any other security for such obligations, or to enforce a judgment or other court ruling in favor of the Holder. THE COMPANY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT
MAY HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION WITH OR ARISING OUT OF THIS WARRANT OR ANY TRANSACTION CONTEMPLATED HEREBY. 

11. CONSTRUCTION; HEADINGS. This Warrant shall be deemed to be jointly drafted by the Company and all the Buyers and shall not be
construed against any person as the drafter hereof. The headings of this Warrant are for convenience of reference and shall not form part of, or affect the interpretation of, this Warrant. 

12. DISPUTE RESOLUTION. In the case of a dispute as to the determination of the Exercise Price or the arithmetic calculation of
the Warrant Shares, the Company shall submit the disputed determinations or arithmetic calculations via facsimile within two (2) Business Days of receipt of the Exercise Notice giving rise to such dispute, as the case may be, to the Holder. If
the Holder and the Company are unable to agree upon such determination or calculation of the Exercise Price or the Warrant Shares within three (3) Business Days of such disputed determination or arithmetic calculation being submitted to the
Holder, then the Company shall, within two (2) Business Days submit via facsimile (a) the disputed determination of the Exercise Price to an independent, reputable investment bank selected by the Company and approved by the Holder or
(b) the disputed arithmetic calculation of the Warrant Shares to the Company’s independent, outside accountant. The Company shall cause at its expense the investment bank or the accountant, as the case may be, to perform the determinations
or calculations and notify the Company and the Holder of the results no later than ten Business Days from the time it receives the disputed determinations or calculations. Such investment bank’s or accountant’s determination or
calculation, as the case may be, shall be binding upon all parties absent demonstrable error. 
 13. REMEDIES, OTHER
OBLIGATIONS, BREACHES AND INJUNCTIVE RELIEF. The remedies provided in this Warrant shall be cumulative and in addition to all other remedies available under this Warrant and the other Transaction Documents, at law or in equity (including a
decree of specific performance and/or other injunctive relief), and nothing herein shall limit the right of the Holder to pursue actual damages for any failure by the Company to comply with the terms of this Warrant. The Company acknowledges that a
breach by it of its obligations hereunder will cause irreparable harm to the Holder and that the remedy at law for any such breach may be inadequate. The Company therefore agrees that, in the event of any such breach or threatened breach, the holder
of this Warrant shall be entitled, in addition to all other available remedies, to an injunction restraining any breach, without the necessity of showing economic loss and without any bond or other security being required. 

14. TRANSFER. This Warrant may be offered for sale, sold, transferred or assigned without the consent of the Company, except as
may otherwise be required by Section 2(f) of the Securities Purchase Agreement. 
 15. SEVERABILITY. If any
provision of this Warrant is prohibited by law or otherwise determined to be invalid or unenforceable by a court of competent jurisdiction, the 

  
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provision that would otherwise be prohibited, invalid or unenforceable shall be deemed amended to apply to the broadest extent that it would be valid and enforceable, and the invalidity or
unenforceability of such provision shall not affect the validity of the remaining provisions of this Warrant so long as this Warrant as so modified continues to express, without material change, the original intentions of the parties as to the
subject matter hereof and the prohibited nature, invalidity or unenforceability of the provision(s) in question does not substantially impair the respective expectations or reciprocal obligations of the parties or the practical realization of the
benefits that would otherwise be conferred upon the parties. The parties will endeavor in good faith negotiations to replace the prohibited, invalid or unenforceable provision(s) with a valid provision(s), the effect of which comes as close as
possible to that of the prohibited, invalid or unenforceable provision(s). 
 16. CERTAIN DEFINITIONS. For purposes of
this Warrant, the following terms shall have the following meanings: 
 (a) “Black Scholes Value” means the
value of this Warrant based on the Black and Scholes Option Pricing Model obtained from the “OV” function on Bloomberg determined as of the day immediately following the public announcement of the applicable Fundamental Transaction for
pricing purposes and reflecting (i) a risk-free interest rate corresponding to the U.S. Treasury rate for a period equal to the remaining term of this Warrant as of such date of request, (ii) an expected volatility equal to 100%,
(iii) the underlying price per share used in such calculation shall be the sum of the price per share being offered in cash, if any, plus the value of any non-cash consideration, if any, being offered in the Fundamental Transaction and
(iv) a 360 day annualization factor. 
 (b) “Bloomberg” means Bloomberg Financial Markets. 

(c) “Business Day” means any day other than Saturday, Sunday or other day on which commercial banks in The City of New
York are authorized or required by law to remain closed. 
 (d) “Change of Control” means any Fundamental
Transaction other than (i) any merger, consolidation, reorganization, recapitalization or reclassification of the Common Stock in which this Warrant remains exercisable for publicly traded common stock (or its equivalent) of the Successor
Entity and in which the holders of the Company’s voting power immediately prior to such merger, consolidation, reorganization, recapitalization or reclassification continue after such merger, consolidation, reorganization, recapitalization or
reclassification to hold publicly traded securities and, directly or indirectly, the voting power of the Successor Entity necessary to elect a majority of the members of the board of directors (or their equivalent if other than a corporation) of
such Successor Entity and to approve any measure requiring the approval of holders of a majority of the common stock (or its equivalent) of the Successor Entity, (ii) a license, distribution or development agreement relating to one or more of
the Company’s biotech products entered into on an arms length basis for reasonably equivalent value with a Person that is not a direct or indirect affiliate of the Company or any officer, director or employee thereof and that is in the business
of commercializing or developing biotech products or (iii) pursuant to a migratory merger effected solely for the purpose of changing the jurisdiction of incorporation of the Company. 

  
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 (e) “Closing
Bid Price” and “Closing Sale Price” means, for any security as of any date, the last closing bid price and last closing trade price, respectively, for such security on the Principal Market, as reported by Bloomberg, or, if
the Principal Market begins to operate on an extended hours basis and does not designate the closing bid price or the closing trade price, as the case may be, then the last bid price or the last trade price, respectively, of such security prior to
4:00:00 p.m., New York time, as reported by Bloomberg, or, if the Principal Market is not the principal securities exchange or trading market for such security, the last closing bid price or last trade price, respectively, of such security on the
principal securities exchange or trading market where such security is listed or traded as reported by Bloomberg, or if the foregoing do not apply, the last closing bid price or last trade price, respectively, of such security in the
over-the-counter market on the electronic bulletin board for such security as reported by Bloomberg, or, if no closing bid price or last trade price, respectively, is reported for such security by Bloomberg, the average of the bid prices, or the ask
prices, respectively, of any market makers for such security as reported in the “pink sheets” by Pink Sheets LLC (formerly the National Quotation Bureau, Inc.). If the Closing Bid Price or the Closing Sale Price cannot be calculated for a
security on a particular date on any of the foregoing bases, the Closing Bid Price or the Closing Sale Price, as the case may be, of such security on such date shall be the fair market value as mutually determined by the Company and the Holder. If
the Company and the Holder are unable to agree upon the fair market value of such security, then such dispute shall be resolved pursuant to Section 12. All such determinations shall be appropriately adjusted for any stock dividend, stock split,
stock combination or other similar transaction during the applicable calculation period. 
 (f) “Common Stock”
means (i) the Company’s shares of Common Stock, par value $0.01 per share, and (ii) any share capital into which such Common Stock shall have been changed or any share capital resulting from a reclassification of such Common Stock.

 (g) “Convertible Securities” means any stock or securities (other than Options) directly or indirectly
convertible into or exercisable or exchangeable for shares of Common Stock. 
 (h) “Eligible Market” means the
Principal Market, any other market tier operated by Pink OTC Markets Inc., The Nasdaq Capital Market, The NASDAQ Global Market, The NASDAQ Global Select Market, The New York Stock Exchange, Inc., The NYSE Amex or the OTC Bulletin Board. 

(i) “Expiration Date” means the date eighty-four (84) months after the Initial Exercisability Date or, if such
date falls on a day other than a Business Day or on which trading does not take place on the Principal Market (a “Holiday”), the next day that is not a Holiday. 

(j) “Fundamental Transaction” means that (A) the Company shall, directly or indirectly, in one or more related
transactions, (i) consolidate or merge with or into (whether or not the Company is the surviving corporation) another Person, or (ii) sell, assign, transfer, convey or otherwise dispose of all or substantially all of the properties or
assets of the Company to another Person, or (iii) allow another Person to make a purchase, tender or exchange offer that is accepted by the holders of more than the 50% of the outstanding shares of Common

  
 - 16 -

 
Stock (not including any shares of Common Stock held by the Person or Persons making or party to, or associated or affiliated with the Persons making or party to, such purchase, tender or
exchange offer), or (iv) consummate a stock purchase agreement or other business combination (including, without limitation, a reorganization, recapitalization, spin-off or scheme of arrangement) with another Person whereby such other Person
acquires more than the 50% of the outstanding shares of Common Stock (not including any shares of Common Stock held by the other Person or other Persons making or party to, or associated or affiliated with the other Persons making or party to, such
stock purchase agreement or other business combination), or (v) reorganize, recapitalize or reclassify its Common Stock or (B) any “person” or “group” (as these terms are used for purposes of Sections 13(d) and 14(d) of
the 1934 Act) is or shall become the “beneficial owner” (as defined in Rule 13d-3 under the 1934 Act), directly or indirectly, of 50% of the aggregate ordinary voting power represented by issued and outstanding shares of Common Stock.
Notwithstanding the foregoing, the term “Fundamental Transaction” shall not include any issuance of securities or any other transaction contemplated to occur at the Effective Date pursuant to the Company’s Plan of Reorganization (as
defined in the SPA Securities). 
 (k) “Option Value” means the value of an Option based on the Black and
Scholes Option Pricing model obtained from the “OV” function on Bloomberg determined as of the day prior to the public announcement of the applicable Option for pricing purposes and reflecting (i) a risk-free interest rate
corresponding to the U.S. Treasury rate for a period equal to the remaining term of the applicable Option as of the applicable date of determination, (ii) an expected volatility equal to 100%, (iii) the underlying price per share used in
such calculation shall be the highest Weighted Average Price during the period beginning on the day prior to the execution of definitive documentation relating to the issuance of the applicable Option and the public announcement of such issuance and
(iv) a 360 day annualization factor. 
 (l) “Options” means any rights, warrants or options to subscribe
for or purchase shares of Common Stock or Convertible Securities. 
 (m) “Parent Entity” of a Person means an
entity that, directly or indirectly, controls the applicable Person and whose common shares or common stock or equivalent equity security is quoted or listed on an Eligible Market, or, if there is more than one such Person or Parent Entity, the
Person or Parent Entity with the largest public market capitalization as of the date of consummation of the Fundamental Transaction. 
 (n) “Person” means an individual, a limited liability company, a partnership, a joint venture, a corporation, a trust, an unincorporated organization, any other entity and a government or
any department or agency thereof. 
 (o) “Price Adjusted Market Price” means the arithmetic average of the
Weighted Average Prices during the period beginning on (and including) December 1, 2010 and ending on (and including) December 21, 2010.  
 (p) “Principal Market” means the OTCQX market tier operated by Pink OTC Markets Inc. or such Eligible Market on which such security is then listed or traded as reported by Bloomberg.

  
 - 17 -

  
 (q) “Required
Holders” means the holders of the SPA Warrants representing at least two-thirds of the shares of Common Stock underlying the SPA Warrants then outstanding. 
 (r) “SPA Securities” means the Initial Notes issued pursuant to the Securities Purchase Agreement. 
 (s) “Successor Entity” means the Person (or, if so elected by the Required Holders, the Parent Entity) formed by, resulting from or surviving any Fundamental Transaction or the Person
(or, if so elected by the Required Holders, the Parent Entity) with which such Fundamental Transaction shall have been entered into. 
 (t) “Trading Day” means any day on which the Common Stock is traded on the Principal Market, or, if the Principal Market is not the principal trading market for the Common Stock, then on
the principal securities exchange or securities market on which the Common Stock is then traded; provided that “Trading Day” shall not include any day on which the Common Stock is scheduled to trade on such exchange or market for less than
4.5 hours or any day that the Common Stock is suspended from trading during the final hour of trading on such exchange or market (or if such exchange or market does not designate in advance the closing time of trading on such exchange or market,
then during the hour ending at 4:00:00 p.m., New York time). 
 (u) “Weighted Average Price” means, for any
security as of any date, the dollar volume-weighted average price for such security on the Principal Market during the period beginning at 9:30:01 a.m., New York time (or such other time as the Principal Market publicly announces is the official
open of trading), and ending at 4:00:00 p.m., New York time (or such other time as the Principal Market publicly announces is the official close of trading), as reported by Bloomberg through its “Volume at Price” function or, if the
foregoing does not apply, the dollar volume-weighted average price of such security in the over-the-counter market on the electronic bulletin board for such security during the period beginning at 9:30:01 a.m., New York time (or such other time as
the Principal Market publicly announces is the official open of trading), and ending at 4:00:00 p.m., New York time (or such other time as the Principal Market publicly announces is the official close of trading), as reported by Bloomberg, or, if no
dollar volume-weighted average price is reported for such security by Bloomberg for such hours, the average of the highest closing bid price and the lowest closing ask price of any of the market makers for such security as reported in the “pink
sheets” by Pink Sheets LLC (formerly the National Quotation Bureau, Inc.). If the Weighted Average Price cannot be calculated for a security on a particular date on any of the foregoing bases, the Weighted Average Price of such security on such
date shall be the fair market value as mutually determined by the Company and the Holder. If the Company and the Holder are unable to agree upon the fair market value of such security, then such dispute shall be resolved pursuant to Section 12
with the term “Weighted Average Price” being substituted for the term “Exercise Price.” All such determinations shall be appropriately adjusted for any stock dividend, stock split, stock combination or other similar transaction
during the applicable calculation period. 
 [Signature Page Follows] 

  
 - 18 -

  
 IN WITNESS
WHEREOF, the Company has caused this Warrant to Purchase Common Stock to be duly executed as of the Issuance Date set out above. 
  

			
	BIOVEST INTERNATIONAL, INC.
		
	By:	 	  

		 	Name:
		 	Title:

  
 EXHIBIT A

 EXERCISE NOTICE 
 TO BE EXECUTED BY THE REGISTERED HOLDER TO EXERCISE THIS 
 WARRANT TO
PURCHASE COMMON STOCK 
 BIOVEST INTERNATIONAL, INC. 

The undersigned holder hereby exercises the right to purchase
                     of the Common Stock (“Warrant Shares”) of Biovest International, Inc., a company incorporated under the
laws of Delaware (the “Company”), evidenced by the attached Warrant to Purchase Common Stock (the “Warrant”). Capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in
the Warrant. 
 1. Form of Exercise Price. The Holder intends that payment of the Exercise Price shall be made as: 

             a “Cash Exercise” with respect to
                     Warrant Shares; and/or 
              a “Cashless Exercise” with respect to
                     Warrant Shares. 
 2. Payment of Exercise Price. In the event that the holder has elected a Cash Exercise with respect to some or all of the Warrant Shares to be issued pursuant hereto, the holder shall pay the Aggregate
Exercise Price in the sum of $             to the Company in accordance with the terms of the Warrant. 
 3. Delivery of Warrant Shares. The Company shall deliver to the holder                     
Warrant Shares in accordance with the terms of the Warrant. 
 4. The undersigned holder hereby represents and warrants that
after giving effect to the exercise of the Warrant contemplated by this Exercise Notice, such holder will not be in violation of the beneficial ownership limits specified in Section 1(f) of the Warrant, as increased or decreased pursuant to
terms contained therein. 
 5. Is the Variable Price Formulation being relied on pursuant to Section 2.1(d)? (check one)
YES        NO         
 Date:
                 ,          

 

			
	Account Number:	 	  

	 (if electronic book entry transfer)

 

			
	Transaction Code Number:	 	  

	 (if electronic book entry transfer)

  

			
	  

	Name of Registered Holder
		
		 	  

		 	Name:
		 	Title:

  
 ACKNOWLEDGMENT

 The Company hereby acknowledges this Exercise Notice and hereby directs StockTrans, Inc. to issue the above indicated
number of shares of Common Stock in accordance with the Transfer Agent Instructions dated October [    ], 2010 from the Company and acknowledged and agreed to by StockTrans, Inc. 

 

			
	BIOVEST INTERNATIONAL, INC.
		
	By:	 	  

		 	Name:
		 	Title:

  
 Exhibit B-1

 [FORM OF SERIES B WARRANT] 
 NEITHER THE ISSUANCE AND SALE OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE EXERCISABLE HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, OR (B) AN OPINION OF COUNSEL SELECTED BY THE HOLDER, IN A FORM REASONABLY SATISFACTORY TO THE COMPANY, THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT OR (II) UNLESS THE HOLDER PROVIDES THE COMPANY WITH REASONABLE ASSURANCE THAT SUCH
SECURITIES CAN BE SOLD PURSUANT TO RULE 144 OR RULE 144A UNDER SAID ACT (COLLECTIVELY, “RULE 144”) AND APPLICABLE STATE SECURITIES LAWS. NOTWITHSTANDING THE FOREGOING, THE SECURITIES MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN
ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT SECURED BY THE SECURITIES. 
 BIOVEST INTERNATIONAL, INC. 

WARRANT TO PURCHASE COMMON STOCK 

Warrant No.:              
 Number of Shares of Common Stock:                      

Date of Issuance: [            ], 2010 (“Issuance Date”)

 Biovest International, Inc., a company organized under the laws of Delaware (the “Company”), hereby
certifies that, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, [BUYER], the registered holder hereof or its permitted assigns (the “Holder”), is entitled, subject to the terms set
forth below, to purchase from the Company, at the Exercise Price (as defined below) then in effect, upon surrender of this Warrant to Purchase Common Stock (including any Warrants to Purchase Common Stock issued in exchange, transfer or replacement
hereof, the “Warrant”), at any time or times on or after the Effective Date (as defined in the Securities Purchase Agreement) (the “Initial Exercisability Date”), but not after 11:59 p.m., New York time, on the
Expiration Date (as defined below),                     
(                    )1 fully paid nonassessable shares of Common Stock, par value $0.01 per share, subject to adjustment as provided herein
(the “Warrant Shares”). NOTWITHSTANDING ANY PROVISION OF THIS WARRANT TO THE CONTRARY, NO MORE THAN THE MAXIMUM ELIGIBILITY NUMBER OF WARRANT SHARES 

 

	1	Insert number of shares equal to the difference between (i) the Holder’s share of the aggregate principal amount of SPA Securities sold by the Company
pursuant to the Securities Purchase Agreement divided by $0.50 and (ii) the Holder’s share of the aggregate principal amount of SPA Securities sold by the Company pursuant to the Securities Purchase Agreement divided by the Conversion
Price (as defined in the SPA securities) in effect on the Issuance Date. 

 
SHALL BE EXERCISABLE HEREUNDER. Except as otherwise defined herein, capitalized terms in this Warrant shall have the meanings set forth in Section 16. This Warrant is one of the
Series B Warrants to purchase Common Stock (the “SPA Warrants”) issued pursuant to Section 1 of that certain Securities Purchase Agreement, dated as of October     , 2010 (the “Subscription
Date”), by and among the Company and the investors (the “Buyers”) referred to therein (the “Securities Purchase Agreement”). 
 1. EXERCISE OF WARRANT. 
 (a) Mechanics of
Exercise. Subject to the terms and conditions hereof (including, without limitation, the limitations set forth in Section 1(f)), this Warrant may be exercised by the Holder on any time or times on or after the Initial Exercisability Date,
in whole or in part, by (i) delivery of a written notice, in the form attached hereto as Exhibit A (the “Exercise Notice”), of the Holder’s election to exercise this Warrant and (ii) (A) payment to the Company
of an amount equal to the applicable Exercise Price multiplied by the number of Warrant Shares as to which this Warrant is being exercised (the “Aggregate Exercise Price”) in cash or by wire transfer of immediately available funds
or (B) by notifying the Company that this Warrant is being exercised pursuant to a Cashless Exercise (as defined in Section 1(d)). The Holder shall not be required to deliver the original Warrant in order to effect an exercise hereunder.
Execution and delivery of the Exercise Notice with respect to less than all of the Warrant Shares shall have the same effect as cancellation of the original Warrant and issuance of a new Warrant evidencing the right to purchase the remaining number
of Warrant Shares. On or before the first
(1st) Trading Day following the date on which the
Company has received the Exercise Notice), the Company shall transmit by facsimile an acknowledgment of confirmation of receipt of the Exercise Notice to the Holder and the Company’s transfer agent (the “Transfer Agent”). On or
before the third (3rd) Trading Day following the date
on which the Company has received the Exercise Notice (the “Share Delivery Date”) so long as the Holder delivers the Aggregate Exercise Price (or notice of a Cashless exercise) on or prior to the Share Delivery Date, the Company
shall (X) provided that the Transfer Agent is participating in The Depository Trust Company (“DTC”) Fast Automated Securities Transfer Program, upon the request of the Holder, credit such aggregate number of Warrant Shares to
which the Holder is entitled pursuant to such exercise to the Holder’s or its designee’s balance account with DTC through its Deposit / Withdrawal At Custodian system, or (Y) if the Transfer Agent is not participating in the DTC Fast
Automated Securities Transfer Program, issue and dispatch by overnight courier to the address as specified in the Exercise Notice, a certificate, registered in the Company’s share register in the name of the Holder or its designee, for the
number of shares of Common Stock to which the Holder is entitled pursuant to such exercise. The Company shall be responsible for all fees and expenses of the Transfer Agent and all fees and expenses with respect to the issuance of Warrant Shares via
DTC, if any. Upon delivery of the Exercise Notice, so long as the Holder delivers the Aggregate Exercise Price (or notice of a Cashless Exercise) on or prior to the Share Delivery Date, the Holder shall be deemed for all corporate purposes to have
become the holder of record of the Warrant Shares with respect to which this Warrant has been exercised, irrespective of the date such Warrant Shares are credited to the Holder’s DTC account or the date of delivery of the certificates
evidencing such Warrant Shares, as the case may be. If this Warrant is submitted in connection with any exercise pursuant to this Section 1(a) and the number of Warrant Shares represented by this Warrant submitted for exercise is greater than
the number of Warrant Shares being acquired upon an exercise, then the Company shall as soon as 

  
 - 2 -

 
practicable and in no event later than three (3) Trading Days after any exercise and at its own expense, issue a new Warrant (in accordance with Section 7(d)) representing the right to
purchase the number of Warrant Shares issuable immediately prior to such exercise under this Warrant, less the number of Warrant Shares with respect to which this Warrant is exercised. No fractional shares of Common Stock are to be issued upon the
exercise of this Warrant, but rather the number of shares of Common Stock to be issued shall be rounded up to the nearest whole number. The Company shall pay any and all taxes which may be payable with respect to the issuance and delivery of Warrant
Shares upon exercise of this Warrant. 
 (b) Exercise Price. For purposes of this Warrant, “Exercise
Price” means $0.01, subject to adjustment as provided herein. 
 (c) Company’s Failure to Timely Deliver
Securities. If the Company shall fail for any reason or for no reason to issue to the Holder within three (3) Trading Days of receipt of the Exercise Notice, so long as the Holder delivers the Aggregate Exercise Price (or notice of Cashless
Exercise) on or prior to the Share Delivery Date, a certificate for the number of shares of Common Stock to which the Holder is entitled and register such shares of Common Stock on the Company’s share register or to credit the Holder’s
balance account with DTC for such number of shares of Common Stock to which the Holder is entitled upon the Holder’s exercise of this Warrant or pursuant to the Company’s obligation pursuant to clause (ii) below, and if on or after
such Trading Day the Holder purchases (in an open market transaction or otherwise) shares of Common Stock to deliver in satisfaction of a sale by the Holder of shares of Common Stock issuable upon such exercise that the Holder anticipated receiving
from the Company (a “Buy-In”), then the Company shall, within three (3) Trading Days after the Holder’s request and in the Holder’s discretion, either (i) pay cash to the Holder in an amount equal to the
Holder’s total purchase price (including brokerage commissions and other reasonable out-of-pocket expenses, if any) for the shares of Common Stock so purchased (the “Buy-In Price”), at which point the Company’s obligation
to deliver such certificate (and to issue such shares of Common Stock) or credit such Holder’s balance account with DTC shall terminate, or (ii) promptly honor its obligation to deliver to the Holder a certificate or certificates
representing such shares of Common Stock or credit such Holder’s balance account with DTC and pay cash to the Holder in an amount equal to the excess (if any) of the Buy-In Price over the product of (A) such number of shares of Common
Stock, times (B) the Closing Bid Price on the date of exercise. 
 (d) Cashless Exercise. Notwithstanding anything
contained herein to the contrary, if, after the Effective Date, any Warrant Shares that are the subject of the Exercise Notice cannot be issued pursuant to Section 1145 of the Bankruptcy Code (as defined in the Securities Purchase Agreement) or
is otherwise not freely transferable without any restrictions or limitations, the Holder may, in its sole discretion, exercise this Warrant in whole or in part and, in lieu of making the cash payment otherwise contemplated to be made to the Company
upon such exercise in payment of the Aggregate Exercise Price, elect instead to receive upon such exercise the “Net Number” of shares of Common Stock determined according to the following formula (a “Cashless Exercise”):

 Net Number = (A x B) - (A x C) 
                                   
  B 

  
 - 3 -

  

			
	For purposes of the foregoing formula:
		
	A=	 	the total number of shares with respect to which this Warrant is then being exercised.
		
	B=	 	the Weighted Average Price of the Common Stock (as reported by Bloomberg) for the five (5) consecutive Trading Days ending on the date immediately preceding the date of the
Exercise Notice.
		
	C=	 	$0.001.

 (e) Disputes. In the case of
a dispute as to the determination of the Exercise Price or the arithmetic calculation of the Warrant Shares, the Company shall promptly issue to the Holder the number of Warrant Shares that are not disputed and resolve such dispute in accordance
with Section 12. 
 (f) Limitations on Exercises. The Company shall not effect the exercise of this Warrant, and
the Holder shall not have the right to exercise this Warrant, to the extent that after giving effect to such exercise, such Person (together with such Person’s affiliates) would beneficially own in excess of 4.99% (the “Maximum
Percentage”) of the shares of Common Stock outstanding immediately after giving effect to such exercise. For purposes of the foregoing sentence, the aggregate number of shares of Common Stock beneficially owned by such Person and its
affiliates shall include the number of shares of Common Stock issuable upon exercise of this Warrant with respect to which the determination of such sentence is being made, but shall exclude shares of Common Stock which would be issuable upon
(i) exercise of the remaining, unexercised portion of this Warrant beneficially owned by such Person and its affiliates and (ii) exercise or conversion of the unexercised or unconverted portion of any other securities of the Company
beneficially owned by such Person and its affiliates (including, without limitation, any convertible notes or convertible preferred stock or warrants) subject to a limitation on conversion or exercise analogous to the limitation contained herein.
Except as set forth in the preceding sentence, for purposes of this paragraph, beneficial ownership shall be calculated in accordance with Section 13(d) of the Securities Exchange Act of 1934, as amended (the “1934 Act”). For
purposes of this Warrant, in determining the number of outstanding shares of Common Stock, the Holder may rely on the number of outstanding shares of Common Stock as reflected in (1) the Company’s most recent Form 10-K, Form 10-Q, Current
Report on Form 8-K or other public filing with the Securities and Exchange Commission, as the case may be, (2) a more recent public announcement by the Company or (3) any other notice by the Company or the Transfer Agent setting forth the
number of shares of Common Stock outstanding. For any reason at any time, upon the written or oral request of the Holder, the Company shall within one (1) Business Day confirm orally and in writing to the Holder the number of shares of Common
Stock then outstanding. In any case, the number of outstanding shares of Common Stock shall be determined after giving effect to the 

  
 - 4 -

 
conversion or exercise of securities of the Company, including the SPA Warrants, by the Holder and its affiliates since the date as of which such number of outstanding shares of Common Stock was
reported. By written notice to the Company, the Holder may from time to time increase or decrease the Maximum Percentage to any other percentage not in excess of 9.99% specified in such notice; provided that (i) any such increase will not be
effective until the sixty-first (61st) day after such
notice is delivered to the Company, and (ii) any such increase or decrease will apply only to the Holder and not to any other holder of SPA Warrants. The provisions of this paragraph shall be construed and implemented in a manner otherwise than
in strict conformity with the terms of this Section 1(f) to correct this paragraph (or any portion hereof) which may be defective or inconsistent with the intended beneficial ownership limitation herein contained or to make changes or
supplements necessary or desirable to properly give effect to such limitation. 
 (g) Insufficient Authorized Shares. If
at any time while this Warrant remains outstanding the Company does not have a sufficient number of authorized and unreserved shares of Common Stock to satisfy its obligation to reserve for issuance upon exercise of this Warrant at least a number of
shares of Common Stock equal to 100% (the “Required Reserve Amount”) of the maximum number of shares of Common Stock as shall from time to time be necessary to effect the exercise of all of this Warrant then outstanding (an
“Authorized Share Failure”), then the Company shall immediately take all action necessary to increase the Company’s authorized shares of Common Stock to an amount sufficient to allow the Company to reserve the Required Reserve
Amount for this Warrant then outstanding. Without limiting the generality of the foregoing sentence, as soon as practicable after the date of the occurrence of an Authorized Share Failure, but in no event later than sixty (60) days after the
occurrence of such Authorized Share Failure, the Company shall hold a meeting of its stockholders for the approval of an increase in the number of authorized shares of Common Stock. In connection with such meeting, the Company shall provide each
stockholder with a proxy statement and shall use its reasonable best efforts to solicit its stockholders’ approval of such increase in authorized shares of Common Stock and to cause its board of directors to recommend to the stockholders that
they approve such proposal. 
 (h) Mandatory Exercise. If the Maximum Eligibility Number on December 22, 2010 is
greater than zero, then this Warrant shall be deemed to be exercised by a Cashless Exercise pursuant to Section 1(d) above and the Company shall be obligated to deliver all Warrant Shares in accordance with, and in the time periods specified
in, this Warrant as if the Holder had delivered an Exercise Notice on such date with respect to the maximum number of Warrant Shares exercisable hereunder. 
 2. ADJUSTMENT OF EXERCISE PRICE AND NUMBER OF WARRANT SHARES. The Exercise Price and the number of Warrant Shares shall be adjusted from time to time as follows: 

(a) Intentionally Omitted. 
 (b) Intentionally Omitted. 
 (c) Adjustment upon Subdivision or
Combination of shares of Common Stock. If the Company at any time on or after the Subscription Date subdivides (by 

  
 - 5 -

 
any stock split, stock dividend, recapitalization or otherwise) one or more classes of its outstanding shares of Common Stock into a greater number of shares, the Exercise Price in effect
immediately prior to such subdivision will be proportionately reduced and the number of Warrant Shares will be proportionately increased. If the Company at any time on or after the Subscription Date combines (by combination, reverse stock split or
otherwise) one or more classes of its outstanding shares of Common Stock into a smaller number of shares, the Exercise Price in effect immediately prior to such combination will be proportionately increased and the number of Warrant Shares will be
proportionately decreased. Any adjustment under this Section 2(c) shall become effective at the close of business on the date the subdivision or combination becomes effective. 

(d) Holder’s Right of Alternative Exercise Price Following Issuance of Variable Securities. If the Company issues or sells
or, in accordance with this Section 2 is deemed to have issued or sold any Options or Convertible Securities after the Issuance Date that are convertible into or exchangeable or exercisable for shares of Common Stock at a price which varies or
may vary with the market price of the shares of Common Stock, including by way of one or more reset(s) to a fixed price (each of the formulations for such variable price being herein referred to as, a “Variable Price Formulation”),
the Company shall provide written notice thereof via facsimile and overnight courier to the Holder (the “Variable Notice”) on the date of issuance or deemed issuance of such Convertible Securities or Options. From and after the date
the Company issues or is deemed to have issued any such Convertible Securities or Options with a Variable Price Formulation, but only for so long as such Convertible Securities or Options are outstanding, the Holder shall have the right, but not the
obligation, in its sole discretion to substitute any of the applicable Variable Price Formulation for the Exercise Price upon exercise of the Warrants held by it by designating in the Exercise Notice delivered upon exercise of such Warrant that
solely for purposes of such exercise the Holder is relying on the Variable Price Formulation rather than the Exercise Price then in effect. The Holder’s election to rely on a Variable Price Formulation for a particular exercise of Warrants
shall not obligate the Holder to rely on a Variable Price Formulation for any future exercise of Warrants. 

  
 - 6 -

  
 3. RIGHTS UPON
DISTRIBUTION OF ASSETS. If the Company shall declare or make any dividend or other distribution of its assets (or rights to acquire its assets) to holders of shares of Common Stock, by way of return of capital or otherwise (including, without
limitation, any distribution of cash, stock or other securities, property or options by way of a dividend, spin off, reclassification, corporate rearrangement, scheme of arrangement or other similar transaction) (a “Distribution”),
at any time after the issuance of this Warrant, then, in each such case, upon an exercise of this Warrant, in whole or in part, the Holder will be entitled to receive the amount of any such Distribution that the Holder would have received if the
Holder had held, immediately before the date on which a record is taken for the declaration or payment of the Distribution, or, if no such record date is taken, the date as of which the record holders of shares of Common Stock are to be determined
for the declaration or payment of the Distribution, the number of shares of Common Stock that the Holder is entitled to receive upon such exercise (without taking into account any limitations or restrictions on the convertibility of this Warrant).

 4. PURCHASE RIGHTS; FUNDAMENTAL TRANSACTIONS. 

(a) Purchase Rights. In addition to any adjustments pursuant to Section 2 above, if at any time the Company grants, issues
or sells any Options, Convertible Securities or rights to purchase stock, warrants, securities or other property pro rata to the record holders of any class of Common Stock (the “Purchase Rights”), then the Holder will be entitled
to acquire, upon the terms applicable to such Purchase Rights, the aggregate Purchase Rights which the Holder could have acquired if the Holder had held the number of shares of Common Stock acquirable upon complete exercise of this Warrant (without
regard to any limitations on the exercise of this Warrant) immediately before the date on which a record is taken for the grant, issuance or sale of such Purchase Rights, or, if no such record is taken, the date as of which the record holders of
shares of Common Stock are to be determined for the grant, issue or sale of such Purchase Rights. 
 (b) Fundamental
Transactions. The Company shall not enter into or be party to a Fundamental Transaction unless (i) the Successor Entity assumes in writing all of the obligations of the Company under this Warrant and the other Transaction Documents in
accordance with the provisions of this Section (4)(b) pursuant to written agreements in form and substance satisfactory to the Required Holders and approved by the Required Holders prior to such Fundamental Transaction, including agreements to
deliver to each holder of the SPA Warrants in exchange for such Warrants a security of the Successor Entity evidenced by a written instrument substantially similar in form and substance to this Warrant, including, without limitation, an adjusted
exercise price equal to the value for the shares of Common Stock reflected by the terms of such Fundamental Transaction, and exercisable for a corresponding number of shares of capital stock equivalent to the shares of Common Stock acquirable and
receivable upon exercise of this Warrant (without regard to any limitations on the exercise of this Warrant) prior to such Fundamental Transaction, and satisfactory to the Required Holders and (ii) the Successor Entity (including its Parent
Entity) is a publicly traded corporation whose common stock is quoted on or listed for trading on an Eligible Market. Upon the occurrence of any Fundamental Transaction, the Successor Entity shall succeed to, and be substituted for (so that from and
after the date of such Fundamental Transaction, the provisions of this Warrant referring to the “Company” shall refer instead to the Successor Entity), and may exercise every right and power of the Company and shall assume all of the
obligations of the Company under this Warrant with 

  
 - 7 -

 
the same effect as if such Successor Entity had been named as the Company herein. Upon consummation of the Fundamental Transaction, the Successor Entity shall deliver to the Holder confirmation
that there shall be issued upon exercise of this Warrant at any time after the consummation of the Fundamental Transaction, in lieu of the shares of Common Stock (or other securities, cash, assets or other property) issuable upon the exercise of the
Warrant prior to such Fundamental Transaction, such shares of the publicly traded common stock or common shares (or its equivalent) of the Successor Entity (including its Parent Entity) which the Holder would have been entitled to receive upon the
happening of such Fundamental Transaction had this Warrant been converted immediately prior to such Fundamental Transaction, as adjusted in accordance with the provisions of this Warrant. In addition to and not in substitution for any other rights
hereunder, prior to the consummation of any Fundamental Transaction pursuant to which holders of shares of Common Stock are entitled to receive securities or other assets with respect to or in exchange for shares of Common Stock (a
“Corporate Event”), the Company shall make appropriate provision to insure that the Holder will thereafter have the right to receive upon an exercise of this Warrant at any time after the consummation of the Corporate Event but
prior to the Expiration Date, in lieu of shares of Common Stock (or other securities, cash, assets or other property) purchasable upon the exercise of this Warrant prior to such Corporate Event, such shares of stock, securities, cash, assets or any
other property whatsoever (including warrants or other purchase or subscription rights) which the Holder would have been entitled to receive upon the happening of such Corporate Event had this Warrant been exercised immediately prior to such
Corporate Event. Provision made pursuant to the preceding sentence shall be in a form and substance reasonably satisfactory to the Required Holders. The provisions of this Section shall apply similarly and equally to successive Fundamental
Transactions and Corporate Events and shall be applied without regard to any limitations on the exercise of this Warrant. 
 (c) Notwithstanding the foregoing, in the event of a Change of Control, at the request of the Holder delivered before the ninetieth (90th) day after the consummation of such Change of Control, the Company (or the Successor Entity) shall purchase this
Warrant from the Holder by paying to the Holder, within five (5) Business Days after such request (or, if later, on the effective date of the Change of Control), cash in an amount equal to the Black Scholes Value of the remaining unexercised
portion of this Warrant on the date of such Change of Control. 
 5. NONCIRCUMVENTION. The Company hereby covenants and
agrees that the Company will not, by amendment of its Certificate of Incorporation or Bylaws, or through any reorganization, transfer of assets, consolidation, merger, scheme of arrangement, dissolution, issue or sale of securities, or any other
voluntary action, avoid or seek to avoid the observance or performance of any of the terms of this Warrant, and will at all times in good faith carry out all the provisions of this Warrant and take all action as may be required to protect the rights
of the Holder. Without limiting the generality of the foregoing, the Company (i) shall not increase the par value of any shares of Common Stock receivable upon the exercise of this Warrant above the Exercise Price then in effect,
(ii) shall take all such actions as may be necessary or appropriate in order that the Company may validly and legally issue fully paid and nonassessable shares of Common Stock upon the exercise of this Warrant, and (iii) shall, so long as
any of the SPA Warrants are outstanding, take all action necessary to reserve and keep available out of its authorized and unissued shares of Common Stock, solely for the purpose of effecting the exercise of the SPA Warrants, 130% of the number of
shares of Common Stock as shall from time to time be necessary to effect the exercise of the SPA Warrants then outstanding (without regard to any limitations on exercise). 

  
 - 8 -

  
 6. WARRANT HOLDER
NOT DEEMED A STOCKHOLDER. Except as otherwise specifically provided herein, the Holder, solely in such Person’s capacity as a holder of this Warrant, shall not be entitled to vote or receive dividends or be deemed the holder of share
capital of the Company for any purpose, nor shall anything contained in this Warrant be construed to confer upon the Holder, solely in such Person’s capacity as the Holder of this Warrant, any of the rights of a stockholder of the Company or
any right to vote, give or withhold consent to any corporate action (whether any reorganization, issue of stock, reclassification of stock, consolidation, merger, conveyance or otherwise), receive notice of meetings, receive dividends or
subscription rights, or otherwise, prior to the issuance to the Holder of the Warrant Shares which such Person is then entitled to receive upon the due exercise of this Warrant. In addition, nothing contained in this Warrant shall be construed as
imposing any liabilities on the Holder to purchase any securities (upon exercise of this Warrant or otherwise) or as a stockholder of the Company, whether such liabilities are asserted by the Company or by creditors of the Company. Notwithstanding
this Section 6, the Company shall provide the Holder with copies of the same notices and other information given to the stockholders of the Company generally, contemporaneously with the giving thereof to the stockholders. 

7. REISSUANCE OF WARRANTS. 
 (a) Transfer of Warrant. If this Warrant is to be transferred, the Holder shall surrender this Warrant to the Company, whereupon the Company will forthwith issue and deliver upon the order of the
Holder a new Warrant (in accordance with Section 7(d)), registered as the Holder may request, representing the right to purchase the number of Warrant Shares being transferred by the Holder and, if less than the total number of Warrant Shares
then underlying this Warrant is being transferred, a new Warrant (in accordance with Section 7(d)) to the Holder representing the right to purchase the number of Warrant Shares not being transferred. 

(b) Lost, Stolen or Mutilated Warrant. Upon receipt by the Company of evidence reasonably satisfactory to the Company of the
loss, theft, destruction or mutilation of this Warrant, and, in the case of loss, theft or destruction, of any indemnification undertaking by the Holder to the Company in customary form and, in the case of mutilation, upon surrender and cancellation
of this Warrant, the Company shall execute and deliver to the Holder a new Warrant (in accordance with Section 7(d)) representing the right to purchase the Warrant Shares then underlying this Warrant. 

(c) Exchangeable for Multiple Warrants. This Warrant is exchangeable, upon the surrender hereof by the Holder at the principal
office of the Company, for a new Warrant or Warrants (in accordance with Section 7(d)) representing in the aggregate the right to purchase the number of Warrant Shares then underlying this Warrant, and each such new Warrant will represent the
right to purchase such portion of such Warrant Shares as is designated by the Holder at the time of such surrender; provided, however, that no Warrants for fractional shares of Common Stock shall be given. 

  
 - 9 -

  
 (d) Issuance of
New Warrants. Whenever the Company is required to issue a new Warrant pursuant to the terms of this Warrant, such new Warrant (i) shall be of like tenor with this Warrant, (ii) shall represent, as indicated on the face of such new
Warrant, the right to purchase the Warrant Shares then underlying this Warrant (or in the case of a new Warrant being issued pursuant to Section 7(a) or Section 7(c), the Warrant Shares designated by the Holder which, when added to the
number of shares of Common Stock underlying the other new Warrants issued in connection with such issuance, does not exceed the number of Warrant Shares then underlying this Warrant), (iii) shall have an issuance date, as indicated on the face
of such new Warrant which is the same as the Issuance Date, and (iv) shall have the same rights and conditions as this Warrant. 
 8. NOTICES. Whenever notice is required to be given under this Warrant, unless otherwise provided herein, such notice shall be given in accordance with Section 9(f) of the Securities Purchase
Agreement. The Company shall provide the Holder with prompt written notice of all actions taken pursuant to this Warrant, including in reasonable detail a description of such action and the reason therefor. Without limiting the generality of the
foregoing, the Company will give written notice to the Holder (i) immediately upon any adjustment of the Exercise Price, setting forth in reasonable detail, and certifying, the calculation of such adjustment and (ii) at least fifteen
(15) days prior to the date on which the Company closes its books or takes a record (A) with respect to any dividend or distribution upon the shares of Common Stock, (B) with respect to any grants, issuances or sales of any Options,
Convertible Securities or rights to purchase stock, warrants, securities or other property to holders of shares of Common Stock or (C) for determining rights to vote with respect to any Fundamental Transaction, dissolution or liquidation,
provided in each case that such information shall be made known to the public prior to or in conjunction with such notice being provided to the Holder. 
 9. AMENDMENT AND WAIVER. Except as otherwise provided herein, the provisions of this Warrant may be amended and the Company may take any action herein prohibited, or omit to perform any act herein
required to be performed by it, only if the Company has obtained the written consent of the Required Holders. No such amendment shall be effective to the extent that it applies to less than all of the holders of the SPA Warrants then outstanding.

 10. GOVERNING LAW. This Warrant shall be governed by and construed and enforced in accordance with, and all questions
concerning the construction, validity, interpretation and performance of this Warrant shall be governed by, the internal laws of the State of Florida, without giving effect to any choice of law or conflict of law provision or rule (whether of the
State of Florida or any other jurisdictions) that would cause the application of the laws of any jurisdictions other than the State of Florida. The Holder and the Company hereby irrevocably submit to the exclusive jurisdiction of the Bankruptcy
Court for the adjudication of any dispute hereunder or in connection herewith or with any transaction contemplated hereby or discussed herein, and hereby irrevocably waive, and agree not to assert in any suit, action or proceeding, any claim that it
is not personally subject to the jurisdiction of any such court, that such suit, action or proceeding is brought in an inconvenient forum or that the venue of such suit, action or proceeding is improper. Nothing contained herein shall be deemed to
limit in any way any right to serve process in any manner permitted by law. Nothing contained herein shall be deemed or operate to preclude the Holder from bringing suit or taking other legal action against the Company in any other jurisdiction to
collect on the Company’s obligations to the Holder, to 

  
 - 10 -

 
realize on any collateral or any other security for such obligations, or to enforce a judgment or other court ruling in favor of the Holder. THE COMPANY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT
MAY HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION WITH OR ARISING OUT OF THIS WARRANT OR ANY TRANSACTION CONTEMPLATED HEREBY. 

11. CONSTRUCTION; HEADINGS. This Warrant shall be deemed to be jointly drafted by the Company and all the Buyers and shall not be
construed against any person as the drafter hereof. The headings of this Warrant are for convenience of reference and shall not form part of, or affect the interpretation of, this Warrant. 

12. DISPUTE RESOLUTION. In the case of a dispute as to the determination of the Exercise Price or the arithmetic calculation of
the Warrant Shares, the Company shall submit the disputed determinations or arithmetic calculations via facsimile within two (2) Business Days of receipt of the Exercise Notice giving rise to such dispute, as the case may be, to the Holder. If
the Holder and the Company are unable to agree upon such determination or calculation of the Exercise Price or the Warrant Shares within three (3) Business Days of such disputed determination or arithmetic calculation being submitted to the
Holder, then the Company shall, within two (2) Business Days submit via facsimile (a) the disputed determination of the Exercise Price to an independent, reputable investment bank selected by the Company and approved by the Holder or
(b) the disputed arithmetic calculation of the Warrant Shares to the Company’s independent, outside accountant. The Company shall cause at its expense the investment bank or the accountant, as the case may be, to perform the determinations
or calculations and notify the Company and the Holder of the results no later than ten Business Days from the time it receives the disputed determinations or calculations. Such investment bank’s or accountant’s determination or
calculation, as the case may be, shall be binding upon all parties absent demonstrable error. 
 13. REMEDIES, OTHER
OBLIGATIONS, BREACHES AND INJUNCTIVE RELIEF. The remedies provided in this Warrant shall be cumulative and in addition to all other remedies available under this Warrant and the other Transaction Documents, at law or in equity (including a
decree of specific performance and/or other injunctive relief), and nothing herein shall limit the right of the Holder to pursue actual damages for any failure by the Company to comply with the terms of this Warrant. The Company acknowledges that a
breach by it of its obligations hereunder will cause irreparable harm to the Holder and that the remedy at law for any such breach may be inadequate. The Company therefore agrees that, in the event of any such breach or threatened breach, the holder
of this Warrant shall be entitled, in addition to all other available remedies, to an injunction restraining any breach, without the necessity of showing economic loss and without any bond or other security being required. 

14. TRANSFER. This Warrant may be offered for sale, sold, transferred or assigned without the consent of the Company, except as may
otherwise be required by Section 2(f) of the Securities Purchase Agreement. 
 15. SEVERABILITY. If any provision of this
Warrant is prohibited by law or otherwise determined to be invalid or unenforceable by a court of competent jurisdiction, the 

  
 - 11 -

 
provision that would otherwise be prohibited, invalid or unenforceable shall be deemed amended to apply to the broadest extent that it would be valid and enforceable, and the invalidity or
unenforceability of such provision shall not affect the validity of the remaining provisions of this Warrant so long as this Warrant as so modified continues to express, without material change, the original intentions of the parties as to the
subject matter hereof and the prohibited nature, invalidity or unenforceability of the provision(s) in question does not substantially impair the respective expectations or reciprocal obligations of the parties or the practical realization of the
benefits that would otherwise be conferred upon the parties. The parties will endeavor in good faith negotiations to replace the prohibited, invalid or unenforceable provision(s) with a valid provision(s), the effect of which comes as close as
possible to that of the prohibited, invalid or unenforceable provision(s). 
 16. CERTAIN DEFINITIONS. For purposes of
this Warrant, the following terms shall have the following meanings: 
 (a) “Black Scholes Value” means the
value of this Warrant based on the Black and Scholes Option Pricing Model obtained from the “OV” function on Bloomberg determined as of the day immediately following the public announcement of the applicable Fundamental Transaction for
pricing purposes and reflecting (i) a risk-free interest rate corresponding to the U.S. Treasury rate for a period equal to the remaining term of this Warrant as of such date of request, (ii) an expected volatility equal to 100%,
(iii) the underlying price per share used in such calculation shall be the sum of the price per share being offered in cash, if any, plus the value of any non-cash consideration, if any, being offered in the Fundamental Transaction and
(iv) a 360 day annualization factor. 
 (b) “Bloomberg” means Bloomberg Financial Markets. 

(c) “Business Day” means any day other than Saturday, Sunday or other day on which commercial banks in The City of New
York are authorized or required by law to remain closed. 
 (d) “Change of Control” means any Fundamental
Transaction other than (i) any merger, consolidation, reorganization, recapitalization or reclassification of the Common Stock in which this Warrant remains exercisable for publicly traded common stock (or its equivalent) of the Successor
Entity and in which the holders of the Company’s voting power immediately prior to such merger, consolidation, reorganization, recapitalization or reclassification continue after such merger, consolidation, reorganization, recapitalization or
reclassification to hold publicly traded securities and, directly or indirectly, the voting power of the Successor Entity necessary to elect a majority of the members of the board of directors (or their equivalent if other than a corporation) of
such Successor Entity and to approve any measure requiring the approval of holders of a majority of the common stock (or its equivalent) of the Successor Entity, (ii) a license, distribution or development agreement relating to one or more of
the Company’s biotech products entered into on an arms length basis for reasonably equivalent value with a Person that is not a direct or indirect affiliate of the Company or any officer, director or employee thereof and that is in the business
of commercializing or developing biotech products or (iii) pursuant to a migratory merger effected solely for the purpose of changing the jurisdiction of incorporation of the Company. 

  
 - 12 -

  
 (e) “Closing
Bid Price” and “Closing Sale Price” means, for any security as of any date, the last closing bid price and last closing trade price, respectively, for such security on the Principal Market, as reported by Bloomberg, or, if
the Principal Market begins to operate on an extended hours basis and does not designate the closing bid price or the closing trade price, as the case may be, then the last bid price or the last trade price, respectively, of such security prior to
4:00:00 p.m., New York time, as reported by Bloomberg, or, if the Principal Market is not the principal securities exchange or trading market for such security, the last closing bid price or last trade price, respectively, of such security on the
principal securities exchange or trading market where such security is listed or traded as reported by Bloomberg, or if the foregoing do not apply, the last closing bid price or last trade price, respectively, of such security in the
over-the-counter market on the electronic bulletin board for such security as reported by Bloomberg, or, if no closing bid price or last trade price, respectively, is reported for such security by Bloomberg, the average of the bid prices, or the ask
prices, respectively, of any market makers for such security as reported in the “pink sheets” by Pink Sheets LLC (formerly the National Quotation Bureau, Inc.). If the Closing Bid Price or the Closing Sale Price cannot be calculated for a
security on a particular date on any of the foregoing bases, the Closing Bid Price or the Closing Sale Price, as the case may be, of such security on such date shall be the fair market value as mutually determined by the Company and the Holder. If
the Company and the Holder are unable to agree upon the fair market value of such security, then such dispute shall be resolved pursuant to Section 12. All such determinations shall be appropriately adjusted for any stock dividend, stock split,
stock combination or other similar transaction during the applicable calculation period. 
 (f) “Common Stock”
means (i) the Company’s shares of Common Stock, par value $0.01 per share, and (ii) any share capital into which such Common Stock shall have been changed or any share capital resulting from a reclassification of such Common Stock.

 (g) “Convertible Securities” means any stock or securities (other than Options) directly or indirectly
convertible into or exercisable or exchangeable for shares of Common Stock. 
 (h) “Eligible Market” means the
Principal Market, any other market tier operated by Pink OTC Markets Inc., The Nasdaq Capital Market, The NASDAQ Global Market, The NASDAQ Global Select Market, The New York Stock Exchange, Inc., The NYSE Amex or the OTC Bulletin Board. 

(i) “Expiration Date” means December 23, 2010 or, if such date falls on a Holiday, the next day that is not a
Holiday. 
 (j) “Fundamental Transaction” means that (A) the Company shall, directly or indirectly, in
one or more related transactions, (i) consolidate or merge with or into (whether or not the Company is the surviving corporation) another Person, or (ii) sell, assign, transfer, convey or otherwise dispose of all or substantially all of
the properties or assets of the Company to another Person, or (iii) allow another Person to make a purchase, tender or exchange offer that is accepted by the holders of more than the 50% of the outstanding shares of Common Stock (not including
any shares of Common Stock held by the Person or Persons making or party to, or associated or affiliated with the Persons making or party to, such purchase, tender or 

  
 - 13 -

 
exchange offer), or (iv) consummate a stock purchase agreement or other business combination (including, without limitation, a reorganization, recapitalization, spin-off or scheme of
arrangement) with another Person whereby such other Person acquires more than the 50% of the outstanding shares of Common Stock (not including any shares of Common Stock held by the other Person or other Persons making or party to, or associated or
affiliated with the other Persons making or party to, such stock purchase agreement or other business combination), or (v) reorganize, recapitalize or reclassify its Common Stock or (B) any “person” or “group” (as these
terms are used for purposes of Sections 13(d) and 14(d) of the 1934 Act) is or shall become the “beneficial owner” (as defined in Rule 13d-3 under the 1934 Act), directly or indirectly, of 50% of the aggregate ordinary voting power
represented by issued and outstanding shares of Common Stock. Notwithstanding the foregoing, the term “Fundamental Transaction” shall not include any issuance of securities or any other transaction contemplated to occur at the Effective
Date pursuant to the Company’s Plan of Reorganization (as defined in the SPA Securities). 
 (k) “Maximum
Eligibility Number” means initially zero and such number shall be increased, on December 22, 2010 if 80% of the Price Adjusted Market Price is less than $0.91, to a number equal to the difference between (I) the quotient
determined by dividing (A) the aggregate principal amount of SPA Securities purchased by the Holder (or such Holder’s assignee) on the Issuance Date by (B) the greater of (1) $0.50 (subject to adjustment for stock splits, stock
dividends, recapitalizations or other similar events with respect to the Company’s Common Stock) and (2) 80% of the Price Adjusted Market Price and (II) the quotient determined by dividing the aggregate principal amount of SPA Securities
purchased by the Holder (or such Holder’s assignee) on the Issuance Date by (B) $0.91; provided, that in no event shall the Maximum Eligibility Number exceed the number of Warrant Shares set forth on the first page of this Warrant (as
adjusted pursuant to the terms set forth herein). 
 (l) “Options” means any rights, warrants or options to
subscribe for or purchase shares of Common Stock or Convertible Securities. 
 (m) “Parent Entity” of a Person
means an entity that, directly or indirectly, controls the applicable Person and whose common shares or common stock or equivalent equity security is quoted or listed on an Eligible Market, or, if there is more than one such Person or Parent Entity,
the Person or Parent Entity with the largest public market capitalization as of the date of consummation of the Fundamental Transaction. 
 (n) “Person” means an individual, a limited liability company, a partnership, a joint venture, a corporation, a trust, an unincorporated organization, any other entity and a government or
any department or agency thereof. 
 (o) “Price Adjusted Market Price” means the arithmetic average of the
Weighted Average Prices during the period beginning on (and including) December 1, 2010 and ending on (and including) December 21, 2010.  
 (p) “Principal Market” means the OTCQX market tier operated by Pink OTC Markets Inc. or such Eligible Market on which such security is then listed or traded as reported by Bloomberg.

  
 - 14 -

  
 (q) “Required
Holders” means the holders of the SPA Warrants representing at least two-thirds of the shares of Common Stock underlying the SPA Warrants then outstanding. 
 (r) “SPA Securities” means the Initial Notes issued pursuant to the Securities Purchase Agreement. 
 (s) “Successor Entity” means the Person (or, if so elected by the Required Holders, the Parent Entity) formed by, resulting from or surviving any Fundamental Transaction or the Person
(or, if so elected by the Required Holders, the Parent Entity) with which such Fundamental Transaction shall have been entered into. 
 (t) “Trading Day” means any day on which the Common Stock is traded on the Principal Market, or, if the Principal Market is not the principal trading market for the Common Stock, then on
the principal securities exchange or securities market on which the Common Stock is then traded; provided that “Trading Day” shall not include any day on which the Common Stock is scheduled to trade on such exchange or market for less than
4.5 hours or any day that the Common Stock is suspended from trading during the final hour of trading on such exchange or market (or if such exchange or market does not designate in advance the closing time of trading on such exchange or market,
then during the hour ending at 4:00:00 p.m., New York time). 
 (u) “Weighted Average Price” means, for any
security as of any date, the dollar volume-weighted average price for such security on the Principal Market during the period beginning at 9:30:01 a.m., New York time (or such other time as the Principal Market publicly announces is the official
open of trading), and ending at 4:00:00 p.m., New York time (or such other time as the Principal Market publicly announces is the official close of trading), as reported by Bloomberg through its “Volume at Price” function or, if the
foregoing does not apply, the dollar volume-weighted average price of such security in the over-the-counter market on the electronic bulletin board for such security during the period beginning at 9:30:01 a.m., New York time (or such other time as
the Principal Market publicly announces is the official open of trading), and ending at 4:00:00 p.m., New York time (or such other time as the Principal Market publicly announces is the official close of trading), as reported by Bloomberg, or, if no
dollar volume-weighted average price is reported for such security by Bloomberg for such hours, the average of the highest closing bid price and the lowest closing ask price of any of the market makers for such security as reported in the “pink
sheets” by Pink Sheets LLC (formerly the National Quotation Bureau, Inc.). If the Weighted Average Price cannot be calculated for a security on a particular date on any of the foregoing bases, the Weighted Average Price of such security on such
date shall be the fair market value as mutually determined by the Company and the Holder. If the Company and the Holder are unable to agree upon the fair market value of such security, then such dispute shall be resolved pursuant to Section 12
with the term “Weighted Average Price” being substituted for the term “Exercise Price.” All such determinations shall be appropriately adjusted for any stock dividend, stock split, stock combination or other similar transaction
during the applicable calculation period. 
 [Signature Page Follows] 

  
 - 15 -

  
 IN WITNESS
WHEREOF, the Company has caused this Warrant to Purchase Common Stock to be duly executed as of the Issuance Date set out above. 
  

			
	BIOVEST INTERNATIONAL, INC.
		
	By:	 	  

		 	Name:
		 	Title:

  
 EXHIBIT A

 EXERCISE NOTICE 
 TO BE EXECUTED BY THE REGISTERED HOLDER TO EXERCISE THIS 
 WARRANT TO
PURCHASE COMMON STOCK 
 BIOVEST INTERNATIONAL, INC. 

The undersigned holder hereby exercises the right to purchase
                     of the Common Stock (“Warrant Shares”) of Biovest International, Inc., a company incorporated under the
laws of Delaware (the “Company”), evidenced by the attached Warrant to Purchase Common Stock (the “Warrant”). Capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in
the Warrant. 
 1. Form of Exercise Price. The Holder intends that payment of the Exercise Price shall be made as: 

             a “Cash Exercise” with respect to
                     Warrant Shares; and/or 
              a “Cashless Exercise” with respect to
             Warrant Shares. 
 2. Payment of Exercise Price.
In the event that the holder has elected a Cash Exercise with respect to some or all of the Warrant Shares to be issued pursuant hereto, the holder shall pay the Aggregate Exercise Price in the sum of
$             to the Company in accordance with the terms of the Warrant. 
 3. Delivery of Warrant Shares. The Company shall deliver to the holder                     
Warrant Shares in accordance with the terms of the Warrant. 
 4. The undersigned holder hereby represents and warrants that
after giving effect to the exercise of the Warrant contemplated by this Exercise Notice, such holder will not be in violation of the beneficial ownership limits specified in Section 1(f) of the Warrant, as increased or decreased pursuant to
terms contained therein. 
 5. Is the Variable Price Formulation being relied on pursuant to Section 2.1(d)? (check one)
YES          NO          
 Date:
                 ,          

 

			
	Account Number:	 	  

	 (if electronic book entry transfer)

 

			
	Transaction Code Number:	 	  

	 (if electronic book entry transfer)

  

			
	  

	Name of Registered Holder
		
		 	  

		 	Name:
		 	Title:

  
 ACKNOWLEDGMENT

 The Company hereby acknowledges this Exercise Notice and hereby directs StockTrans, Inc. to issue the above indicated
number of shares of Common Stock in accordance with the Transfer Agent Instructions dated October [    ], 2010 from the Company and acknowledged and agreed to by StockTrans, Inc. 

 

			
	BIOVEST INTERNATIONAL, INC.
		
	By:	 	  

		 	Name:
		 	Title:

  
 Exhibit B-2

 [FORM OF SERIES A WARRANT] 
 BIOVEST INTERNATIONAL, INC. 
 WARRANT TO
PURCHASE COMMON STOCK 
 Warrant No.:
             
 Number of Shares of Common Stock:
                     
 Date of Issuance:
[            ], 2010 (“Issuance Date”) 
 Biovest International, Inc., a company organized under the laws of Delaware (the “Company”), hereby certifies that, for good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, [BUYER], the registered holder hereof or its permitted assigns (the “Holder”), is entitled, subject to the terms set forth below, to purchase from the Company, at the Exercise Price (as defined below)
then in effect, upon surrender of this Warrant to Purchase Common Stock (including any Warrants to Purchase Common Stock issued in exchange, transfer or replacement hereof, the “Warrant”), at any time or times on or after the
Effective Date (as defined in the Securities Purchase Agreement) (the “Initial Exercisability Date”), but not after 11:59 p.m., New York time, on the Expiration Date (as defined below),
                    
(                    )1 fully paid nonassessable shares of Common Stock, par value $0.01 per share, subject to adjustment as provided herein (the “Warrant Shares”). Except as otherwise defined herein,
capitalized terms in this Warrant shall have the meanings set forth in Section 16. This Warrant is one of the Series A Warrants to purchase Common Stock (the “SPA Warrants”) issued pursuant to Section 1 of that certain
Securities Purchase Agreement, dated as of October     , 2010 (the “Subscription Date”), by and among the Company and the investors (the “Buyers”) referred to therein (the
“Securities Purchase Agreement”). 
 1. EXERCISE OF WARRANT. 

(a) Mechanics of Exercise. Subject to the terms and conditions hereof (including, without limitation, the
limitations set forth in Section 1(f)), this Warrant may be exercised by the Holder on any time or times on or after the Initial Exercisability Date, in whole or in part, by (i) delivery of a written notice, in the form attached hereto as
Exhibit A (the “Exercise Notice”), of the Holder’s election to exercise this Warrant and (ii) (A) payment to the Company of an amount equal to the applicable Exercise Price multiplied by the number of Warrant Shares
as to which this Warrant is being exercised (the “Aggregate Exercise Price”) in cash or by wire transfer of immediately available funds or (B) by notifying the Company that this Warrant is being exercised pursuant to a Cashless
Exercise (as defined in Section 1(d)). The Holder shall not be required to deliver the original Warrant in order to effect an exercise hereunder. Execution and delivery of the Exercise Notice with respect to less than all of the Warrant Shares
shall have the same effect as cancellation of the original Warrant and issuance of a new Warrant evidencing the right to purchase the remaining number of Warrant Shares. On or before the first (1st) Trading Day following the date on which the Company has
received the 
  

	1	Insert number of shares equal to such holder’s pro rata share of the aggregate principal amount of SPA Securities sold by the Company pursuant to the Securities
Purchase Agreement divided by $0.91 

 
Exercise Notice), the Company shall transmit by facsimile an acknowledgment of confirmation of receipt of the Exercise Notice to the Holder and the Company’s transfer agent (the
“Transfer Agent”). On or before the third (3rd) Trading Day following the date on which the Company has received the Exercise Notice (the “Share Delivery Date”) so long as the Holder delivers the Aggregate Exercise Price (or
notice of a Cashless exercise) on or prior to the Share Delivery Date, the Company shall (X) provided that the Transfer Agent is participating in The Depository Trust Company (“DTC”) Fast Automated Securities Transfer Program,
upon the request of the Holder, credit such aggregate number of Warrant Shares to which the Holder is entitled pursuant to such exercise to the Holder’s or its designee’s balance account with DTC through its Deposit / Withdrawal At
Custodian system, or (Y) if the Transfer Agent is not participating in the DTC Fast Automated Securities Transfer Program, issue and dispatch by overnight courier to the address as specified in the Exercise Notice, a certificate, registered in
the Company’s share register in the name of the Holder or its designee, for the number of shares of Common Stock to which the Holder is entitled pursuant to such exercise. The Company shall be responsible for all fees and expenses of the
Transfer Agent and all fees and expenses with respect to the issuance of Warrant Shares via DTC, if any. Upon delivery of the Exercise Notice, so long as the Holder delivers the Aggregate Exercise Price (or notice of a Cashless Exercise) on or prior
to the Share Delivery Date, the Holder shall be deemed for all corporate purposes to have become the holder of record of the Warrant Shares with respect to which this Warrant has been exercised, irrespective of the date such Warrant Shares are
credited to the Holder’s DTC account or the date of delivery of the certificates evidencing such Warrant Shares, as the case may be. If this Warrant is submitted in connection with any exercise pursuant to this Section 1(a) and the number
of Warrant Shares represented by this Warrant submitted for exercise is greater than the number of Warrant Shares being acquired upon an exercise, then the Company shall as soon as practicable and in no event later than three (3) Trading Days
after any exercise and at its own expense, issue a new Warrant (in accordance with Section 7(d)) representing the right to purchase the number of Warrant Shares issuable immediately prior to such exercise under this Warrant, less the number of
Warrant Shares with respect to which this Warrant is exercised. No fractional shares of Common Stock are to be issued upon the exercise of this Warrant, but rather the number of shares of Common Stock to be issued shall be rounded up to the nearest
whole number. The Company shall pay any and all taxes which may be payable with respect to the issuance and delivery of Warrant Shares upon exercise of this Warrant. 
 (b) Exercise Price. For purposes of this Warrant, “Exercise Price” means $        , subject to adjustment as provided herein.

 (c) Company’s Failure to Timely Deliver Securities. If the Company shall fail for any reason or for no reason to
issue to the Holder within three (3) Trading Days of receipt of the Exercise Notice, so long as the Holder delivers the Aggregate Exercise Price (or notice of Cashless Exercise) on or prior to the Share Delivery Date, a certificate for the
number of shares of Common Stock to which the Holder is entitled and register such shares of Common Stock on the Company’s share register or to credit the Holder’s balance account with DTC for such number of shares of Common Stock to which
the Holder is entitled upon the Holder’s exercise of this Warrant or pursuant to the Company’s obligation pursuant to clause (ii) below, and if on or after such Trading Day the Holder purchases (in an open market transaction or
otherwise) shares of Common Stock to deliver in satisfaction of a sale by the Holder of shares of Common Stock issuable upon such exercise that the Holder anticipated receiving from the 

  
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Company (a “Buy-In”), then the Company shall, within three (3) Trading Days after the Holder’s request and in the Holder’s discretion, either (i) pay cash to
the Holder in an amount equal to the Holder’s total purchase price (including brokerage commissions and other reasonable out-of-pocket expenses, if any) for the shares of Common Stock so purchased (the “Buy-In Price”), at which
point the Company’s obligation to deliver such certificate (and to issue such shares of Common Stock) or credit such Holder’s balance account with DTC shall terminate, or (ii) promptly honor its obligation to deliver to the Holder a
certificate or certificates representing such shares of Common Stock or credit such Holder’s balance account with DTC and pay cash to the Holder in an amount equal to the excess (if any) of the Buy-In Price over the product of (A) such
number of shares of Common Stock, times (B) the Closing Bid Price on the date of exercise. 
 (d) Cashless
Exercise. Notwithstanding anything contained herein to the contrary, if, after the Effective Date, any Warrant Shares that are the subject of the Exercise Notice cannot be issued pursuant to Section 1145 of the Bankruptcy Code (as defined
in the Securities Purchase Agreement) or is otherwise not freely transferable without any restrictions or limitations, the Holder may, in its sole discretion, exercise this Warrant in whole or in part and, in lieu of making the cash payment
otherwise contemplated to be made to the Company upon such exercise in payment of the Aggregate Exercise Price, elect instead to receive upon such exercise the “Net Number” of shares of Common Stock determined according to the following
formula (a “Cashless Exercise”): 
 Net Number = (A x B) - (A x C) 

                       
             B 
 For purposes of the foregoing formula:

  

			
	A=	 	the total number of shares with respect to which this Warrant is then being exercised.
		
	 B=
	 	the Weighted Average Price of the Common Stock (as reported by Bloomberg) for the five (5) consecutive Trading Days ending on the date immediately preceding the date of the
Exercise Notice.
		
	 C=
	 	the Exercise Price then in effect for the applicable Warrant Shares at the time of such exercise.

(e) Disputes. In the case of a dispute as to the determination of the Exercise Price or the arithmetic calculation of the Warrant
Shares, the Company shall promptly issue to the Holder the number of Warrant Shares that are not disputed and resolve such dispute in accordance with Section 12. 
 (f) Limitations on Exercises. The Company shall not effect the exercise of this Warrant, and the Holder shall not have the right to exercise this Warrant, to the extent that after giving effect to
such exercise, such Person (together with such Person’s affiliates) would beneficially own in excess of 4.99% (the “Maximum Percentage”) of the shares of Common Stock outstanding immediately after giving effect to such
exercise. For 

  
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purposes of the foregoing sentence, the aggregate number of shares of Common Stock beneficially owned by such Person and its affiliates shall include the number of shares of Common Stock issuable
upon exercise of this Warrant with respect to which the determination of such sentence is being made, but shall exclude shares of Common Stock which would be issuable upon (i) exercise of the remaining, unexercised portion of this Warrant
beneficially owned by such Person and its affiliates and (ii) exercise or conversion of the unexercised or unconverted portion of any other securities of the Company beneficially owned by such Person and its affiliates (including, without
limitation, any convertible notes or convertible preferred stock or warrants) subject to a limitation on conversion or exercise analogous to the limitation contained herein. Except as set forth in the preceding sentence, for purposes of this
paragraph, beneficial ownership shall be calculated in accordance with Section 13(d) of the Securities Exchange Act of 1934, as amended (the “1934 Act”). For purposes of this Warrant, in determining the number of outstanding
shares of Common Stock, the Holder may rely on the number of outstanding shares of Common Stock as reflected in (1) the Company’s most recent Form 10-K, Form 10-Q, Current Report on Form 8-K or other public filing with the Securities and
Exchange Commission, as the case may be, (2) a more recent public announcement by the Company or (3) any other notice by the Company or the Transfer Agent setting forth the number of shares of Common Stock outstanding. For any reason at
any time, upon the written or oral request of the Holder, the Company shall within one (1) Business Day confirm orally and in writing to the Holder the number of shares of Common Stock then outstanding. In any case, the number of outstanding
shares of Common Stock shall be determined after giving effect to the conversion or exercise of securities of the Company, including the SPA Warrants, by the Holder and its affiliates since the date as of which such number of outstanding shares of
Common Stock was reported. By written notice to the Company, the Holder may from time to time increase or decrease the Maximum Percentage to any other percentage not in excess of 9.99% specified in such notice; provided that (i) any such
increase will not be effective until the sixty-first
(61st) day after such notice is delivered to the
Company, and (ii) any such increase or decrease will apply only to the Holder and not to any other holder of SPA Warrants. The provisions of this paragraph shall be construed and implemented in a manner otherwise than in strict conformity with
the terms of this Section 1(f) to correct this paragraph (or any portion hereof) which may be defective or inconsistent with the intended beneficial ownership limitation herein contained or to make changes or supplements necessary or desirable
to properly give effect to such limitation. 
 (g) Insufficient Authorized Shares. If at any time while this Warrant
remains outstanding the Company does not have a sufficient number of authorized and unreserved shares of Common Stock to satisfy its obligation to reserve for issuance upon exercise of this Warrant at least a number of shares of Common Stock equal
to 130% (the “Required Reserve Amount”) of the maximum number of shares of Common Stock as shall from time to time be necessary to effect the exercise of all of this Warrant then outstanding (an “Authorized Share
Failure”), then the Company shall immediately take all action necessary to increase the Company’s authorized shares of Common Stock to an amount sufficient to allow the Company to reserve the Required Reserve Amount for this Warrant
then outstanding. Without limiting the generality of the foregoing sentence, as soon as practicable after the date of the occurrence of an Authorized Share Failure, but in no event later than sixty (60) days after the occurrence of such
Authorized Share Failure, the Company shall hold a meeting of its stockholders for the approval of an increase in the number of authorized shares of Common Stock. In connection with such meeting, the Company shall provide each stockholder with a

  
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proxy statement and shall use its reasonable best efforts to solicit its stockholders’ approval of such increase in authorized shares of Common Stock and to cause its board of directors to
recommend to the stockholders that they approve such proposal. 
 2. ADJUSTMENT OF EXERCISE PRICE AND NUMBER OF WARRANT
SHARES. The Exercise Price and the number of Warrant Shares shall be adjusted from time to time as follows: 
 (a)
Adjustment upon Issuance of shares of Common Stock. If and whenever on or after the Subscription Date, the Company issues or sells, or in accordance with this Section 2 is deemed to have issued or sold, any shares of Common Stock
(including the issuance or sale of shares of Common Stock owned or held by or for the account of the Company, but excluding shares of Common Stock deemed to have been issued by the Company in connection with any Excluded Securities (as defined in
the SPA Securities)) for a consideration per share (the “New Issuance Price”) less than a price (the “Applicable Price”) equal to the Exercise Price in effect immediately prior to such issue or sale or deemed
issuance or sale (the foregoing a “Dilutive Issuance”), then immediately after such Dilutive Issuance, the Exercise Price then in effect shall be reduced to an amount equal to the New Issuance Price. Upon each such adjustment of the
Exercise Price hereunder, the number of Warrant Shares issuable immediately prior to such Dilutive Issuance shall be adjusted to the number of shares of Common Stock determined by multiplying the Exercise Price in effect immediately prior to such
adjustment by the number of Warrant Shares acquirable upon exercise of this Warrant immediately prior to such adjustment and dividing the product thereof by the Exercise Price resulting from such adjustment. For purposes of determining the adjusted
Exercise Price under this Section 2(a), the following shall be applicable: 
 (i) Issuance of Options. If the
Company in any manner grants any Options and the lowest price per share for which one share of Common Stock is issuable upon the exercise of any such Option or upon conversion, exercise or exchange of any Convertible Securities issuable upon
exercise of any such Option is less than the Applicable Price, then such share of Common Stock shall be deemed to be outstanding and to have been issued and sold by the Company at the time of the granting or sale of such Option for such price per
share. For purposes of this Section 2(a)(i), the “lowest price per share for which one share of Common Stock is issuable upon exercise of such Options or upon conversion, exercise or exchange of such Convertible Securities issuable upon
exercise of any such Option” shall be equal to the sum of the lowest amounts of consideration (if any) received or receivable by the Company with respect to any one share of Common Stock upon the granting or sale of the Option, upon exercise of
the Option and upon conversion, exercise or exchange of any Convertible Security issuable upon exercise of such Option less any consideration paid or payable by the Company with respect to such one share of Common Stock upon the granting or sale of
such Option, upon exercise of such Option and upon conversion exercise or exchange of any Convertible Security issuable upon exercise of such Option. No further adjustment of the Exercise Price or number of Warrant

  
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Shares shall be made upon the actual issuance of such shares of Common Stock or of such Convertible Securities upon the exercise of such Options or upon the actual issuance of such shares of
Common Stock upon conversion, exercise or exchange of such Convertible Securities. 
 (ii) Issuance of Convertible
Securities. If the Company in any manner issues or sells any Convertible Securities and the lowest price per share for which one share of Common Stock is issuable upon the conversion, exercise or exchange thereof is less than the Applicable
Price, then such share of Common Stock shall be deemed to be outstanding and to have been issued and sold by the Company at the time of the issuance or sale of such Convertible Securities for such price per share. For the purposes of this
Section 2(a)(ii), the “lowest price per share for which one share of Common Stock is issuable upon the conversion, exercise or exchange thereof” shall be equal to the sum of the lowest amounts of consideration (if any) received or
receivable by the Company with respect to one share of Common Stock upon the issuance or sale of the Convertible Security and upon conversion, exercise or exchange of such Convertible Security less any consideration paid or payable by the Company
with respect to such one share of Common Stock upon the issuance or sale of such Convertible Security and upon conversion, exercise or exchange of such Convertible Security. No further adjustment of the Exercise Price or number of Warrant Shares
shall be made upon the actual issuance of such shares of Common Stock upon conversion, exercise or exchange of such Convertible Securities, and if any such issue or sale of such Convertible Securities is made upon exercise of any Options for which
adjustment of this Warrant has been or is to be made pursuant to other provisions of this Section 2(a), no further adjustment of the Exercise Price or number of Warrant Shares shall be made by reason of such issue or sale. 

(iii) Change in Option Price or Rate of Conversion. If the purchase price provided for in any Options issued after the
Subscription Date, the additional consideration, if any, payable upon the issue, conversion, exercise or exchange of any Convertible Securities issued after the Subscription Date, or the rate at which any Convertible Securities issued after the
Subscription Date are convertible into or exercisable or exchangeable for shares of Common Stock increases or decreases at any time, the Exercise Price and the number of Warrant Shares in effect at the time of such increase or decrease shall be
adjusted to the Exercise Price and the number of Warrant Shares which would have been in effect at such time had such Options or Convertible Securities provided for such increased or decreased purchase price, additional consideration or increased or
decreased conversion rate, as the case may be, at the time initially granted, issued or sold. Additionally, if the terms of any Option or Convertible Security that was outstanding as of the date of the Subscription Date is increased or decreased in
the manner described in the immediately preceding sentence, then such Option or Convertible Security 

  
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and the shares of Common Stock deemed issuable upon exercise, conversion or exchange thereof shall be deemed to have been issued as of the date of such increase or decrease, but in such event the
amount of the adjustment to the Exercise Price pursuant to this Section 2 will not be proportionately greater than the proportionate amount of the increase or decrease. No adjustment pursuant to this Section 2(a) shall be made if such
adjustment would result in an increase of the Exercise Price then in effect or a decrease in the number of Warrant Shares. 
 (iv) Calculation of Consideration Received. In case any Option is issued in connection with the issue or sale of other securities of the Company, together comprising one integrated transaction,
(x) the Options will be deemed to have been issued for the Option Value and (y) the other securities issued or sold in such integrated transaction shall be deemed to have been issued for the difference of (I) the aggregate
consideration received by the Company less any consideration paid or payable by the Company pursuant to the terms of such other securities of the Company, less (II) the Option Value. If any shares of Common Stock, Options or Convertible Securities
are issued or sold or deemed to have been issued or sold for cash, the consideration received therefor will be deemed to be the net amount received or receivable by the Company therefor. If any shares of Common Stock, Options or Convertible
Securities are issued or sold for a consideration other than cash, the amount of such consideration received by the Company will be the fair value of such consideration, except where such consideration consists of securities, in which case the
amount of consideration received by the Company will be the Closing Sale Price of such security on the date of receipt. If any shares of Common Stock, Options or Convertible Securities are issued to the owners of the non-surviving entity in
connection with any merger in which the Company is the surviving entity, the amount of consideration therefor will be deemed to be the fair value of such portion of the net assets and business of the non-surviving entity as is attributable to such
shares of Common Stock, Options or Convertible Securities, as the case may be. The fair value of any consideration other than cash or securities will be determined jointly by the Company and the Required Holders. If such parties are unable to reach
agreement within ten (10) days after the occurrence of an event requiring valuation (the “Valuation Event”), the fair value of such consideration will be determined within five (5) Trading Days after the tenth (10th) day following the Valuation Event by an independent, reputable
appraiser jointly selected by the Company and the Required Holders. The determination of such appraiser shall be final and binding upon all parties absent manifest error and the fees and expenses of such appraiser shall be borne by the Company.

 (v) Record Date. If the Company takes a record of the holders of shares of Common Stock for the purpose of entitling
them (A) to receive a dividend or other distribution payable in shares of Common Stock, 

  
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Options or in Convertible Securities or (B) to subscribe for or purchase shares of Common Stock, Options or Convertible Securities, then such record date will be deemed to be the date of the
issue or sale of the shares of Common Stock deemed to have been issued or sold upon the declaration of such dividend or the making of such other distribution or the date of the granting of such right of subscription or purchase, as the case may be.

 (b) Voluntary Adjustment By Company. The Company may at any time during the term of this Warrant reduce the then
current Exercise Price to any amount and for any period of time deemed appropriate by the Board of Directors of the Company. 

(c) Adjustment upon Subdivision or Combination of shares of Common Stock. If the Company at any time on or after the Subscription
Date subdivides (by any stock split, stock dividend, recapitalization or otherwise) one or more classes of its outstanding shares of Common Stock into a greater number of shares, the Exercise Price in effect immediately prior to such subdivision
will be proportionately reduced and the number of Warrant Shares will be proportionately increased. If the Company at any time on or after the Subscription Date combines (by combination, reverse stock split or otherwise) one or more classes of its
outstanding shares of Common Stock into a smaller number of shares, the Exercise Price in effect immediately prior to such combination will be proportionately increased and the number of Warrant Shares will be proportionately decreased. Any
adjustment under this Section 2(c) shall become effective at the close of business on the date the subdivision or combination becomes effective. 
 (d) Holder’s Right of Alternative Exercise Price Following Issuance of Variable Securities. If the Company issues or sells or, in accordance with this Section 2 is deemed to have issued
or sold any Options or Convertible Securities after the Issuance Date that are convertible into or exchangeable or exercisable for shares of Common Stock at a price which varies or may vary with the market price of the shares of Common Stock,
including by way of one or more reset(s) to a fixed price (each of the formulations for such variable price being herein referred to as, a “Variable Price Formulation”), the Company shall provide written notice thereof via facsimile
and overnight courier to the Holder (the “Variable Notice”) on the date of issuance or deemed issuance of such Convertible Securities or Options. From and after the date the Company issues or is deemed to have issued any such
Convertible Securities or Options with a Variable Price Formulation, but only for so long as such Convertible Securities or Options are outstanding, the Holder shall have the right, but not the obligation, in its sole discretion to substitute any of
the applicable Variable Price Formulation for the Exercise Price upon exercise of the Warrants held by it by designating in the Exercise Notice delivered upon exercise of such Warrant that solely for purposes of such exercise the Holder is relying
on the Variable Price Formulation rather than the Exercise Price then in effect. The Holder’s election to rely on a Variable Price Formulation for a particular exercise of Warrants shall not obligate the Holder to rely on a Variable Price
Formulation for any future exercise of Warrants. In connection with determining the “lowest price per share for which one share of Common Stock is issuable upon exercise of any Option” pursuant to Section 2(a)(i) and the “lowest
price per share for which one share of Common Stock is issuable upon the conversion, exercise or exchange of a Convertible Security” pursuant to Section 2(a)(ii), as such terms pertain solely to

  
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any Variable Price Formulation contained in any Option or Convertible Securities issued after the Issuance Date, such lowest price shall equal the lesser of (i) the fixed exercise,
conversion or exchange price set forth in the applicable Option or Convertible Security and (ii) the Variable Price Formulation contained in the applicable Option or Convertible Security, calculated as if such Option or Convertible Security
were converted, exercised or exchanged as of the date of issuance of the applicable Option or Convertible Security. 
 (e)
Price Adjusted Market Price Adjustment. If the Price Adjusted Market Price is less than the Exercise Price in effect on the Issuance Date, then on December 22, 2010, the Exercise Price then in effect shall be reduced (but in no event
increased) to 120% of the Price Adjusted Market Price, provided that the Exercise Price shall not be reduced below $0.60 (subject to adjustment for stock splits, stock dividends, recapitalizations or other similar events with respect to the
Company’s Common Stock) pursuant to this Section 2(e). For the avoidance of doubt, if the adjustment in the immediately preceding sentence would otherwise result in an increase in the Exercise Price hereunder, no adjustment shall be made.
Upon the foregoing adjustment to the Exercise Price, the number of Warrant Shares issuable immediately prior to such adjustment shall be adjusted to the number of shares of Common Stock determined by multiplying .9375 by the product of (A) the
Exercise Price in effect immediately prior to such adjustment and (B) the number of Warrant Shares acquirable upon exercise in full of this Warrant immediately prior to such adjustment and dividing the product thereof by the Exercise Price resulting
from such adjustment. 
 3. RIGHTS UPON DISTRIBUTION OF ASSETS. If the Company shall declare or make any dividend or
other distribution of its assets (or rights to acquire its assets) to holders of shares of Common Stock, by way of return of capital or otherwise (including, without limitation, any distribution of cash, stock or other securities, property or
options by way of a dividend, spin off, reclassification, corporate rearrangement, scheme of arrangement or other similar transaction) (a “Distribution”), at any time after the issuance of this Warrant, then, in each such case, upon
an exercise of this Warrant, in whole or in part, the Holder will be entitled to receive the amount of any such Distribution that the Holder would have received if the Holder had held, immediately before the date on which a record is taken for the
declaration or payment of the Distribution, or, if no such record date is taken, the date as of which the record holders of shares of Common Stock are to be determined for the declaration or payment of the Distribution, the number of shares of
Common Stock that the Holder is entitled to receive upon such exercise (without taking into account any limitations or restrictions on the convertibility of this Warrant). 
 4. PURCHASE RIGHTS; FUNDAMENTAL TRANSACTIONS. 
 (a) Purchase
Rights. In addition to any adjustments pursuant to Section 2 above, if at any time the Company grants, issues or sells any Options, Convertible Securities or rights to purchase stock, warrants, securities or other property pro rata to the
record holders of any class of Common Stock (the “Purchase Rights”), then the Holder will be entitled to acquire, upon the terms applicable to such Purchase Rights, the aggregate Purchase Rights which the Holder could have acquired
if the Holder had held the number of shares of Common Stock acquirable upon complete exercise of this Warrant (without regard to any limitations on the exercise of this Warrant) immediately before the date on which a record is taken for the grant,
issuance or sale of such Purchase Rights, or, if no such record is taken, the date as of which the record holders of shares of Common Stock are to be determined for the grant, issue or sale of such Purchase Rights. 

  
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 (b) Fundamental
Transactions. The Company shall not enter into or be party to a Fundamental Transaction unless (i) the Successor Entity assumes in writing all of the obligations of the Company under this Warrant and the other Transaction Documents in
accordance with the provisions of this Section (4)(b) pursuant to written agreements in form and substance satisfactory to the Required Holders and approved by the Required Holders prior to such Fundamental Transaction, including agreements to
deliver to each holder of the SPA Warrants in exchange for such Warrants a security of the Successor Entity evidenced by a written instrument substantially similar in form and substance to this Warrant, including, without limitation, an adjusted
exercise price equal to the value for the shares of Common Stock reflected by the terms of such Fundamental Transaction, and exercisable for a corresponding number of shares of capital stock equivalent to the shares of Common Stock acquirable and
receivable upon exercise of this Warrant (without regard to any limitations on the exercise of this Warrant) prior to such Fundamental Transaction, and satisfactory to the Required Holders and (ii) the Successor Entity (including its Parent
Entity) is a publicly traded corporation whose common stock is quoted on or listed for trading on an Eligible Market. Upon the occurrence of any Fundamental Transaction, the Successor Entity shall succeed to, and be substituted for (so that from and
after the date of such Fundamental Transaction, the provisions of this Warrant referring to the “Company” shall refer instead to the Successor Entity), and may exercise every right and power of the Company and shall assume all of the
obligations of the Company under this Warrant with the same effect as if such Successor Entity had been named as the Company herein. Upon consummation of the Fundamental Transaction, the Successor Entity shall deliver to the Holder confirmation that
there shall be issued upon exercise of this Warrant at any time after the consummation of the Fundamental Transaction, in lieu of the shares of Common Stock (or other securities, cash, assets or other property) issuable upon the exercise of the
Warrant prior to such Fundamental Transaction, such shares of the publicly traded common stock or common shares (or its equivalent) of the Successor Entity (including its Parent Entity) which the Holder would have been entitled to receive upon the
happening of such Fundamental Transaction had this Warrant been converted immediately prior to such Fundamental Transaction, as adjusted in accordance with the provisions of this Warrant. In addition to and not in substitution for any other rights
hereunder, prior to the consummation of any Fundamental Transaction pursuant to which holders of shares of Common Stock are entitled to receive securities or other assets with respect to or in exchange for shares of Common Stock (a
“Corporate Event”), the Company shall make appropriate provision to insure that the Holder will thereafter have the right to receive upon an exercise of this Warrant at any time after the consummation of the Corporate Event but
prior to the Expiration Date, in lieu of shares of Common Stock (or other securities, cash, assets or other property) purchasable upon the exercise of this Warrant prior to such Corporate Event, such shares of stock, securities, cash, assets or any
other property whatsoever (including warrants or other purchase or subscription rights) which the Holder would have been entitled to receive upon the happening of such Corporate Event had this Warrant been exercised immediately prior to such
Corporate Event. Provision made pursuant to the preceding sentence shall be in a form and substance reasonably satisfactory to the Required Holders. The provisions of this Section shall apply similarly and equally to successive Fundamental
Transactions and Corporate Events and shall be applied without regard to any limitations on the exercise of this Warrant. 

  
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(c) Notwithstanding the foregoing, in the event of a Change of Control, at the request of the Holder delivered before
the ninetieth (90th) day after the consummation of
such Change of Control, the Company (or the Successor Entity) shall purchase this Warrant from the Holder by paying to the Holder, within five (5) Business Days after such request (or, if later, on the effective date of the Change of Control),
cash in an amount equal to the Black Scholes Value of the remaining unexercised portion of this Warrant on the date of such Change of Control. 
 5. NONCIRCUMVENTION. The Company hereby covenants and agrees that the Company will not, by amendment of its Certificate of Incorporation or Bylaws, or through any reorganization, transfer of
assets, consolidation, merger, scheme of arrangement, dissolution, issue or sale of securities, or any other voluntary action, avoid or seek to avoid the observance or performance of any of the terms of this Warrant, and will at all times in good
faith carry out all the provisions of this Warrant and take all action as may be required to protect the rights of the Holder. Without limiting the generality of the foregoing, the Company (i) shall not increase the par value of any shares of
Common Stock receivable upon the exercise of this Warrant above the Exercise Price then in effect, (ii) shall take all such actions as may be necessary or appropriate in order that the Company may validly and legally issue fully paid and
nonassessable shares of Common Stock upon the exercise of this Warrant, and (iii) shall, so long as any of the SPA Warrants are outstanding, take all action necessary to reserve and keep available out of its authorized and unissued shares of
Common Stock, solely for the purpose of effecting the exercise of the SPA Warrants, 130% of the number of shares of Common Stock as shall from time to time be necessary to effect the exercise of the SPA Warrants then outstanding (without regard to
any limitations on exercise). 
 6. WARRANT HOLDER NOT DEEMED A STOCKHOLDER. Except as otherwise specifically provided
herein, the Holder, solely in such Person’s capacity as a holder of this Warrant, shall not be entitled to vote or receive dividends or be deemed the holder of share capital of the Company for any purpose, nor shall anything contained in this
Warrant be construed to confer upon the Holder, solely in such Person’s capacity as the Holder of this Warrant, any of the rights of a stockholder of the Company or any right to vote, give or withhold consent to any corporate action (whether
any reorganization, issue of stock, reclassification of stock, consolidation, merger, conveyance or otherwise), receive notice of meetings, receive dividends or subscription rights, or otherwise, prior to the issuance to the Holder of the Warrant
Shares which such Person is then entitled to receive upon the due exercise of this Warrant. In addition, nothing contained in this Warrant shall be construed as imposing any liabilities on the Holder to purchase any securities (upon exercise of this
Warrant or otherwise) or as a stockholder of the Company, whether such liabilities are asserted by the Company or by creditors of the Company. Notwithstanding this Section 6, the Company shall provide the Holder with copies of the same notices
and other information given to the stockholders of the Company generally, contemporaneously with the giving thereof to the stockholders. 
 7. REISSUANCE OF WARRANTS. 
 (a) Transfer of Warrant. If this
Warrant is to be transferred, the Holder shall surrender this Warrant to the Company, whereupon the Company will forthwith issue and deliver upon the order of the Holder a new Warrant (in accordance with Section 7(d)),

  
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registered as the Holder may request, representing the right to purchase the number of Warrant Shares being transferred by the Holder and, if less than the total number of Warrant Shares then
underlying this Warrant is being transferred, a new Warrant (in accordance with Section 7(d)) to the Holder representing the right to purchase the number of Warrant Shares not being transferred. 

(b) Lost, Stolen or Mutilated Warrant. Upon receipt by the Company of evidence reasonably satisfactory to the Company of the
loss, theft, destruction or mutilation of this Warrant, and, in the case of loss, theft or destruction, of any indemnification undertaking by the Holder to the Company in customary form and, in the case of mutilation, upon surrender and cancellation
of this Warrant, the Company shall execute and deliver to the Holder a new Warrant (in accordance with Section 7(d)) representing the right to purchase the Warrant Shares then underlying this Warrant. 

(c) Exchangeable for Multiple Warrants. This Warrant is exchangeable, upon the surrender hereof by the Holder at the principal
office of the Company, for a new Warrant or Warrants (in accordance with Section 7(d)) representing in the aggregate the right to purchase the number of Warrant Shares then underlying this Warrant, and each such new Warrant will represent the
right to purchase such portion of such Warrant Shares as is designated by the Holder at the time of such surrender; provided, however, that no Warrants for fractional shares of Common Stock shall be given. 

(d) Issuance of New Warrants. Whenever the Company is required to issue a new Warrant pursuant to the terms of this Warrant, such
new Warrant (i) shall be of like tenor with this Warrant, (ii) shall represent, as indicated on the face of such new Warrant, the right to purchase the Warrant Shares then underlying this Warrant (or in the case of a new Warrant being
issued pursuant to Section 7(a) or Section 7(c), the Warrant Shares designated by the Holder which, when added to the number of shares of Common Stock underlying the other new Warrants issued in connection with such issuance, does not
exceed the number of Warrant Shares then underlying this Warrant), (iii) shall have an issuance date, as indicated on the face of such new Warrant which is the same as the Issuance Date, and (iv) shall have the same rights and conditions
as this Warrant. 
 8. NOTICES. Whenever notice is required to be given under this Warrant, unless otherwise provided
herein, such notice shall be given in accordance with Section 9(f) of the Securities Purchase Agreement. The Company shall provide the Holder with prompt written notice of all actions taken pursuant to this Warrant, including in reasonable
detail a description of such action and the reason therefor. Without limiting the generality of the foregoing, the Company will give written notice to the Holder (i) immediately upon any adjustment of the Exercise Price, setting forth in
reasonable detail, and certifying, the calculation of such adjustment and (ii) at least fifteen (15) days prior to the date on which the Company closes its books or takes a record (A) with respect to any dividend or distribution upon
the shares of Common Stock, (B) with respect to any grants, issuances or sales of any Options, Convertible Securities or rights to purchase stock, warrants, securities or other property to holders of shares of Common Stock or (C) for
determining rights to vote with respect to any Fundamental Transaction, dissolution or liquidation, provided in each case that such information shall be made known to the public prior to or in conjunction with such notice being provided to the
Holder. 

  
 - 12 -

  
 9. AMENDMENT AND
WAIVER. Except as otherwise provided herein, the provisions of this Warrant may be amended and the Company may take any action herein prohibited, or omit to perform any act herein required to be performed by it, only if the Company has obtained
the written consent of the Required Holders. No such amendment shall be effective to the extent that it applies to less than all of the holders of the SPA Warrants then outstanding. 

10. GOVERNING LAW. This Warrant shall be governed by and construed and enforced in accordance with, and all questions concerning
the construction, validity, interpretation and performance of this Warrant shall be governed by, the internal laws of the State of New York, without giving effect to any choice of law or conflict of law provision or rule (whether of the State of New
York or any other jurisdictions) that would cause the application of the laws of any jurisdictions other than the State of New York. The Holder and the Company hereby irrevocably submit to the exclusive jurisdiction of the state and federal courts
sitting in The City of New York, Borough of Manhattan for the adjudication of any dispute hereunder or in connection herewith or with any transaction contemplated hereby or discussed herein, and hereby irrevocably waive, and agree not to assert in
any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of any such court, that such suit, action or proceeding is brought in an inconvenient forum or that the venue of such suit, action or proceeding is
improper. Nothing contained herein shall be deemed to limit in any way any right to serve process in any manner permitted by law. Nothing contained herein shall be deemed or operate to preclude the Holder from bringing suit or taking other legal
action against the Company in any other jurisdiction to collect on the Company’s obligations to the Holder, to realize on any collateral or any other security for such obligations, or to enforce a judgment or other court ruling in favor of the
Holder. THE COMPANY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION WITH OR ARISING OUT OF THIS WARRANT OR ANY TRANSACTION CONTEMPLATED
HEREBY. 
 11. CONSTRUCTION; HEADINGS. This Warrant shall be deemed to be jointly drafted by the Company and all the
Buyers and shall not be construed against any person as the drafter hereof. The headings of this Warrant are for convenience of reference and shall not form part of, or affect the interpretation of, this Warrant. 

12. DISPUTE RESOLUTION. In the case of a dispute as to the determination of the Exercise Price or the arithmetic calculation of
the Warrant Shares, the Company shall submit the disputed determinations or arithmetic calculations via facsimile within two (2) Business Days of receipt of the Exercise Notice giving rise to such dispute, as the case may be, to the Holder. If
the Holder and the Company are unable to agree upon such determination or calculation of the Exercise Price or the Warrant Shares within three (3) Business Days of such disputed determination or arithmetic calculation being submitted to the
Holder, then the Company shall, within two (2) Business Days submit via facsimile (a) the disputed determination of the Exercise Price to an independent, reputable investment bank selected by the Company and approved by the Holder or
(b) the disputed arithmetic calculation of the Warrant Shares to the Company’s independent, outside accountant. The Company shall cause at its expense the investment bank or the accountant, as the case may be, to perform the determinations
or calculations and notify the Company and the Holder of the results no later than ten Business Days from the time it receives 

  
 - 13 -

 
the disputed determinations or calculations. Such investment bank’s or accountant’s determination or calculation, as the case may be, shall be binding upon all parties absent
demonstrable error. 
 13. REMEDIES, OTHER OBLIGATIONS, BREACHES AND INJUNCTIVE RELIEF. The remedies provided in this
Warrant shall be cumulative and in addition to all other remedies available under this Warrant and the other Transaction Documents, at law or in equity (including a decree of specific performance and/or other injunctive relief), and nothing herein
shall limit the right of the Holder to pursue actual damages for any failure by the Company to comply with the terms of this Warrant. The Company acknowledges that a breach by it of its obligations hereunder will cause irreparable harm to the Holder
and that the remedy at law for any such breach may be inadequate. The Company therefore agrees that, in the event of any such breach or threatened breach, the holder of this Warrant shall be entitled, in addition to all other available remedies, to
an injunction restraining any breach, without the necessity of showing economic loss and without any bond or other security being required. 
 14. TRANSFER. This Warrant may be offered for sale, sold, transferred or assigned without the consent of the Company, except as may otherwise be required by Section 2(f) of the Securities
Purchase Agreement. 
 15. SEVERABILITY. If any provision of this Warrant is prohibited by law or otherwise determined to
be invalid or unenforceable by a court of competent jurisdiction, the provision that would otherwise be prohibited, invalid or unenforceable shall be deemed amended to apply to the broadest extent that it would be valid and enforceable, and the
invalidity or unenforceability of such provision shall not affect the validity of the remaining provisions of this Warrant so long as this Warrant as so modified continues to express, without material change, the original intentions of the parties
as to the subject matter hereof and the prohibited nature, invalidity or unenforceability of the provision(s) in question does not substantially impair the respective expectations or reciprocal obligations of the parties or the practical realization
of the benefits that would otherwise be conferred upon the parties. The parties will endeavor in good faith negotiations to replace the prohibited, invalid or unenforceable provision(s) with a valid provision(s), the effect of which comes as close
as possible to that of the prohibited, invalid or unenforceable provision(s). 
 16. CERTAIN DEFINITIONS. For purposes of
this Warrant, the following terms shall have the following meanings: 
 (a) “Black Scholes Value” means the
value of this Warrant based on the Black and Scholes Option Pricing Model obtained from the “OV” function on Bloomberg determined as of the day immediately following the public announcement of the applicable Fundamental Transaction for
pricing purposes and reflecting (i) a risk-free interest rate corresponding to the U.S. Treasury rate for a period equal to the remaining term of this Warrant as of such date of request, (ii) an expected volatility equal to 100%,
(iii) the underlying price per share used in such calculation shall be the sum of the price per share being offered in cash, if any, plus the value of any non-cash consideration, if any, being offered in the Fundamental Transaction and
(iv) a 360 day annualization factor. 

  
 - 14 -

  
 (b)
“Bloomberg” means Bloomberg Financial Markets. 
 (c) “Business Day” means any day other than
Saturday, Sunday or other day on which commercial banks in The City of New York are authorized or required by law to remain closed. 
 (d) “Change of Control” means any Fundamental Transaction other than (i) any merger, consolidation, reorganization, recapitalization or reclassification of the Common Stock in which
this Warrant remains exercisable for publicly traded common stock (or its equivalent) of the Successor Entity and in which the holders of the Company’s voting power immediately prior to such merger, consolidation, reorganization,
recapitalization or reclassification continue after such merger, consolidation, reorganization, recapitalization or reclassification to hold publicly traded securities and, directly or indirectly, the voting power of the Successor Entity necessary
to elect a majority of the members of the board of directors (or their equivalent if other than a corporation) of such Successor Entity and to approve any measure requiring the approval of holders of a majority of the common stock (or its
equivalent) of the Successor Entity, (ii) a license, distribution or development agreement relating to one or more of the Company’s biotech products entered into on an arms length basis for reasonably equivalent value with a Person that is
not a direct or indirect affiliate of the Company or any officer, director or employee thereof and that is in the business of commercializing or developing biotech products or (iii) pursuant to a migratory merger effected solely for the purpose
of changing the jurisdiction of incorporation of the Company. 
 (e) “Closing Bid Price” and “Closing
Sale Price” means, for any security as of any date, the last closing bid price and last closing trade price, respectively, for such security on the Principal Market, as reported by Bloomberg, or, if the Principal Market begins to operate on
an extended hours basis and does not designate the closing bid price or the closing trade price, as the case may be, then the last bid price or the last trade price, respectively, of such security prior to 4:00:00 p.m., New York time, as reported by
Bloomberg, or, if the Principal Market is not the principal securities exchange or trading market for such security, the last closing bid price or last trade price, respectively, of such security on the principal securities exchange or trading
market where such security is listed or traded as reported by Bloomberg, or if the foregoing do not apply, the last closing bid price or last trade price, respectively, of such security in the over-the-counter market on the electronic bulletin board
for such security as reported by Bloomberg, or, if no closing bid price or last trade price, respectively, is reported for such security by Bloomberg, the average of the bid prices, or the ask prices, respectively, of any market makers for such
security as reported in the “pink sheets” by Pink Sheets LLC (formerly the National Quotation Bureau, Inc.). If the Closing Bid Price or the Closing Sale Price cannot be calculated for a security on a particular date on any of the
foregoing bases, the Closing Bid Price or the Closing Sale Price, as the case may be, of such security on such date shall be the fair market value as mutually determined by the Company and the Holder. If the Company and the Holder are unable to
agree upon the fair market value of such security, then such dispute shall be resolved pursuant to Section 12. All such determinations shall be appropriately adjusted for any stock dividend, stock split, stock combination or other similar
transaction during the applicable calculation period. 

  
 - 15 -

  
 (f) “Common
Stock” means (i) the Company’s shares of Common Stock, par value $0.01 per share, and (ii) any share capital into which such Common Stock shall have been changed or any share capital resulting from a reclassification of such
Common Stock. 
 (g) “Convertible Securities” means any stock or securities (other than Options) directly or
indirectly convertible into or exercisable or exchangeable for shares of Common Stock. 
 (h) “Eligible
Market” means the Principal Market, any other market tier operated by Pink OTC Markets Inc., The Nasdaq Capital Market, The NASDAQ Global Market, The NASDAQ Global Select Market, The New York Stock Exchange, Inc., The NYSE Amex or the OTC
Bulletin Board. 
 (i) “Expiration Date” means the date eighty-four (84) months after the Initial
Exercisability Date or, if such date falls on a day other than a Business Day or on which trading does not take place on the Principal Market (a “Holiday”), the next day that is not a Holiday. 

(j) “Fundamental Transaction” means that (A) the Company shall, directly or indirectly, in one or more related
transactions, (i) consolidate or merge with or into (whether or not the Company is the surviving corporation) another Person, or (ii) sell, assign, transfer, convey or otherwise dispose of all or substantially all of the properties or
assets of the Company to another Person, or (iii) allow another Person to make a purchase, tender or exchange offer that is accepted by the holders of more than the 50% of the outstanding shares of Common Stock (not including any shares of
Common Stock held by the Person or Persons making or party to, or associated or affiliated with the Persons making or party to, such purchase, tender or exchange offer), or (iv) consummate a stock purchase agreement or other business
combination (including, without limitation, a reorganization, recapitalization, spin-off or scheme of arrangement) with another Person whereby such other Person acquires more than the 50% of the outstanding shares of Common Stock (not including any
shares of Common Stock held by the other Person or other Persons making or party to, or associated or affiliated with the other Persons making or party to, such stock purchase agreement or other business combination), or (v) reorganize,
recapitalize or reclassify its Common Stock or (B) any “person” or “group” (as these terms are used for purposes of Sections 13(d) and 14(d) of the 1934 Act) is or shall become the “beneficial owner” (as defined in
Rule 13d-3 under the 1934 Act), directly or indirectly, of 50% of the aggregate ordinary voting power represented by issued and outstanding shares of Common Stock. Notwithstanding the foregoing, the term “Fundamental Transaction” shall not
include any issuance of securities or any other transaction contemplated to occur at the Effective Date pursuant to the Company’s Plan of Reorganization (as defined in the SPA Securities). 

(k) “Option Value” means the value of an Option based on the Black and Scholes Option Pricing model obtained from the
“OV” function on Bloomberg determined as of the day prior to the public announcement of the applicable Option for pricing purposes and reflecting (i) a risk-free interest rate corresponding to the U.S. Treasury rate for a period equal
to the remaining term of the applicable Option as of the applicable date of determination, (ii) an expected volatility equal to 100%, (iii) the underlying price per share used in such calculation shall be the highest Weighted Average Price
during the period beginning on the day prior to the execution of definitive documentation relating to the issuance of the applicable Option and the public announcement of such issuance and (iv) a 360 day annualization factor. 

  
 - 16 -

  
 (l)
“Options” means any rights, warrants or options to subscribe for or purchase shares of Common Stock or Convertible Securities. 
 (m) “Parent Entity” of a Person means an entity that, directly or indirectly, controls the applicable Person and whose common shares or common stock or equivalent equity security is
quoted or listed on an Eligible Market, or, if there is more than one such Person or Parent Entity, the Person or Parent Entity with the largest public market capitalization as of the date of consummation of the Fundamental Transaction. 

(n) “Person” means an individual, a limited liability company, a partnership, a joint venture, a corporation, a trust,
an unincorporated organization, any other entity and a government or any department or agency thereof. 
 (o) “Price
Adjusted Market Price” means the arithmetic average of the Weighted Average Prices during the period beginning on (and including) December 1, 2010 and ending on (and including) December 21, 2010.  

(p) “Principal Market” means the OTCQX market tier operated by Pink OTC Markets Inc. or such Eligible Market on which
such security is then listed or traded as reported by Bloomberg. 
 (q) “Required Holders” means the holders
of the SPA Warrants representing at least two-thirds of the shares of Common Stock underlying the SPA Warrants then outstanding. 
 (r) “SPA Securities” means the Exchange Notes (as defined in the Securities Purchase Agreement). 
 (s) “Successor Entity” means the Person (or, if so elected by the Required Holders, the Parent Entity) formed by, resulting from or surviving any Fundamental Transaction or the Person
(or, if so elected by the Required Holders, the Parent Entity) with which such Fundamental Transaction shall have been entered into. 
 (t) “Trading Day” means any day on which the Common Stock is traded on the Principal Market, or, if the Principal Market is not the principal trading market for the Common Stock, then on
the principal securities exchange or securities market on which the Common Stock is then traded; provided that “Trading Day” shall not include any day on which the Common Stock is scheduled to trade on such exchange or market for less than
4.5 hours or any day that the Common Stock is suspended from trading during the final hour of trading on such exchange or market (or if such exchange or market does not designate in advance the closing time of trading on such exchange or market,
then during the hour ending at 4:00:00 p.m., New York time). 
 (u) “Weighted Average Price” means, for any
security as of any date, the dollar volume-weighted average price for such security on the Principal Market during the 

  
 - 17 -

 
period beginning at 9:30:01 a.m., New York time (or such other time as the Principal Market publicly announces is the official open of trading), and ending at 4:00:00 p.m., New York time (or such
other time as the Principal Market publicly announces is the official close of trading), as reported by Bloomberg through its “Volume at Price” function or, if the foregoing does not apply, the dollar volume-weighted average price of such
security in the over-the-counter market on the electronic bulletin board for such security during the period beginning at 9:30:01 a.m., New York time (or such other time as the Principal Market publicly announces is the official open of trading),
and ending at 4:00:00 p.m., New York time (or such other time as the Principal Market publicly announces is the official close of trading), as reported by Bloomberg, or, if no dollar volume-weighted average price is reported for such security by
Bloomberg for such hours, the average of the highest closing bid price and the lowest closing ask price of any of the market makers for such security as reported in the “pink sheets” by Pink Sheets LLC (formerly the National Quotation
Bureau, Inc.). If the Weighted Average Price cannot be calculated for a security on a particular date on any of the foregoing bases, the Weighted Average Price of such security on such date shall be the fair market value as mutually determined by
the Company and the Holder. If the Company and the Holder are unable to agree upon the fair market value of such security, then such dispute shall be resolved pursuant to Section 12 with the term “Weighted Average Price” being
substituted for the term “Exercise Price.” All such determinations shall be appropriately adjusted for any stock dividend, stock split, stock combination or other similar transaction during the applicable calculation period. 

[Signature Page Follows] 

  
 - 18 -

  
 IN WITNESS
WHEREOF, the Company has caused this Warrant to Purchase Common Stock to be duly executed as of the Issuance Date set out above. 
  

			
	BIOVEST INTERNATIONAL, INC.
		
	By:	 	  

		 	Name:
		 	Title:

  
 EXHIBIT A

 EXERCISE NOTICE 
 TO BE EXECUTED BY THE REGISTERED HOLDER TO EXERCISE THIS 
 WARRANT TO
PURCHASE COMMON STOCK 
 BIOVEST INTERNATIONAL, INC. 

The undersigned holder hereby exercises the right to purchase
                     of the Common Stock (“Warrant Shares”) of Biovest International, Inc., a company incorporated under the
laws of Delaware (the “Company”), evidenced by the attached Warrant to Purchase Common Stock (the “Warrant”). Capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in
the Warrant. 
 1. Form of Exercise Price. The Holder intends that payment of the Exercise Price shall be made as: 

             a “Cash Exercise” with respect to
                     Warrant Shares; and/or 
              a “Cashless Exercise” with respect to
                     Warrant Shares. 
 2. Payment of Exercise Price. In the event that the holder has elected a Cash Exercise with respect to some or all of the Warrant Shares to be issued pursuant hereto, the holder shall pay the Aggregate
Exercise Price in the sum of $             to the Company in accordance with the terms of the Warrant. 
 3. Delivery of Warrant Shares. The Company shall deliver to the holder                     
Warrant Shares in accordance with the terms of the Warrant. 
 4. The undersigned holder hereby represents and warrants that
after giving effect to the exercise of the Warrant contemplated by this Exercise Notice, such holder will not be in violation of the beneficial ownership limits specified in Section 1(f) of the Warrant, as increased or decreased pursuant to
terms contained therein. 
 5. Is the Variable Price Formulation being relied on pursuant to Section 2.1(d)? (check one)
YES        NO         
 Date:
                 ,           

 

			
	Account Number:	 	  

 (if electronic book entry transfer) 
  

			
	Transaction Code Number:	 	  

 (if electronic book entry transfer) 

  

			
	  

	Name of Registered Holder
		
		 	  

		 	Name:
		 	Title:

  
 ACKNOWLEDGMENT

 The Company hereby acknowledges this Exercise Notice and hereby directs StockTrans, Inc. to issue the above indicated
number of shares of Common Stock in accordance with the Transfer Agent Instructions dated October [    ], 2010 from the Company and acknowledged and agreed to by StockTrans, Inc. 

 

			
	BIOVEST INTERNATIONAL, INC.
		
	By:	 	  

		 	Name:
		 	Title:

  
 Exhibit B-2

 [FORM OF SERIES B WARRANT] 
 BIOVEST INTERNATIONAL, INC. 
 WARRANT TO
PURCHASE COMMON STOCK 
 Warrant No.:
             
 Number of Shares of Common Stock:
                     
 Date of Issuance:
[            ], 2010 (“Issuance Date”) 
 Biovest International, Inc., a company organized under the laws of Delaware (the “Company”), hereby certifies that, for good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, [BUYER], the registered holder hereof or its permitted assigns (the “Holder”), is entitled, subject to the terms set forth below, to purchase from the Company, at the Exercise Price (as defined below)
then in effect, upon surrender of this Warrant to Purchase Common Stock (including any Warrants to Purchase Common Stock issued in exchange, transfer or replacement hereof, the “Warrant”), at any time or times on or after the
Effective Date (as defined in the Securities Purchase Agreement) (the “Initial Exercisability Date”), but not after 11:59 p.m., New York time, on the Expiration Date (as defined below),
                    
(                    )1 fully paid nonassessable shares of Common Stock, par value $0.01 per share, subject to adjustment as provided herein
(the “Warrant Shares”). NOTWITHSTANDING ANY PROVISION OF THIS WARRANT TO THE CONTRARY, NO MORE THAN THE MAXIMUM ELIGIBILITY NUMBER OF WARRANT SHARES SHALL BE EXERCISABLE HEREUNDER. Except as otherwise defined herein,
capitalized terms in this Warrant shall have the meanings set forth in Section 16. This Warrant is one of the Series B Warrants to purchase Common Stock (the “SPA Warrants”) issued pursuant to Section 1 of that certain
Securities Purchase Agreement, dated as of October     , 2010 (the “Subscription Date”), by and among the Company and the investors (the “Buyers”) referred to therein (the
“Securities Purchase Agreement”). 
 1. EXERCISE OF WARRANT. 

(a) Mechanics of Exercise. Subject to the terms and conditions hereof (including, without limitation, the limitations set forth
in Section 1(f)), this Warrant may be exercised by the Holder on any time or times on or after the Initial Exercisability Date, in whole or in part, by (i) delivery of a written notice, in the form attached hereto as Exhibit A (the
“Exercise Notice”), of the Holder’s election to exercise this Warrant and (ii) (A) payment to the Company of an amount equal to the applicable Exercise Price multiplied by the number of Warrant Shares as to which this
Warrant is being exercised (the “Aggregate Exercise Price”) in cash or by wire transfer of immediately available funds or (B) by notifying the Company that this Warrant is being exercised pursuant to a Cashless Exercise (as
defined in Section 1(d)). The 
  

	1	Insert number of shares equal to the difference between (i) the Holder’s share of the aggregate principal amount of SPA Securities sold by the Company
pursuant to the Securities Purchase Agreement divided by $0.50 and (ii) the Holder’s share of the aggregate principal amount of SPA Securities sold by the Company pursuant to the Securities Purchase Agreement divided by $0.91.

 
Holder shall not be required to deliver the original Warrant in order to effect an exercise hereunder. Execution and delivery of the Exercise Notice with respect to less than all of the Warrant
Shares shall have the same effect as cancellation of the original Warrant and issuance of a new Warrant evidencing the right to purchase the remaining number of Warrant Shares. On or before the first (1st) Trading Day following the date on which the Company has
received the Exercise Notice), the Company shall transmit by facsimile an acknowledgment of confirmation of receipt of the Exercise Notice to the Holder and the Company’s transfer agent (the “Transfer Agent”). On or before the
third (3rd) Trading Day following the date on which
the Company has received the Exercise Notice (the “Share Delivery Date”) so long as the Holder delivers the Aggregate Exercise Price (or notice of a Cashless exercise) on or prior to the Share Delivery Date, the Company shall
(X) provided that the Transfer Agent is participating in The Depository Trust Company (“DTC”) Fast Automated Securities Transfer Program, upon the request of the Holder, credit such aggregate number of Warrant Shares to which
the Holder is entitled pursuant to such exercise to the Holder’s or its designee’s balance account with DTC through its Deposit / Withdrawal At Custodian system, or (Y) if the Transfer Agent is not participating in the DTC Fast
Automated Securities Transfer Program, issue and dispatch by overnight courier to the address as specified in the Exercise Notice, a certificate, registered in the Company’s share register in the name of the Holder or its designee, for the
number of shares of Common Stock to which the Holder is entitled pursuant to such exercise. The Company shall be responsible for all fees and expenses of the Transfer Agent and all fees and expenses with respect to the issuance of Warrant Shares via
DTC, if any. Upon delivery of the Exercise Notice, so long as the Holder delivers the Aggregate Exercise Price (or notice of a Cashless Exercise) on or prior to the Share Delivery Date, the Holder shall be deemed for all corporate purposes to have
become the holder of record of the Warrant Shares with respect to which this Warrant has been exercised, irrespective of the date such Warrant Shares are credited to the Holder’s DTC account or the date of delivery of the certificates
evidencing such Warrant Shares, as the case may be. If this Warrant is submitted in connection with any exercise pursuant to this Section 1(a) and the number of Warrant Shares represented by this Warrant submitted for exercise is greater than
the number of Warrant Shares being acquired upon an exercise, then the Company shall as soon as practicable and in no event later than three (3) Trading Days after any exercise and at its own expense, issue a new Warrant (in accordance with
Section 7(d)) representing the right to purchase the number of Warrant Shares issuable immediately prior to such exercise under this Warrant, less the number of Warrant Shares with respect to which this Warrant is exercised. No fractional
shares of Common Stock are to be issued upon the exercise of this Warrant, but rather the number of shares of Common Stock to be issued shall be rounded up to the nearest whole number. The Company shall pay any and all taxes which may be payable
with respect to the issuance and delivery of Warrant Shares upon exercise of this Warrant. 
 (b) Exercise Price. For
purposes of this Warrant, “Exercise Price” means $0.01, subject to adjustment as provided herein. 
 (c)
Company’s Failure to Timely Deliver Securities. If the Company shall fail for any reason or for no reason to issue to the Holder within three (3) Trading Days of receipt of the Exercise Notice, so long as the Holder delivers the
Aggregate Exercise Price (or notice of Cashless Exercise) on or prior to the Share Delivery Date, a certificate for the number of shares of Common Stock to which the Holder is entitled and register such shares of Common Stock on the Company’s
share register or to credit the Holder’s balance account with DTC for 

  
 - 2 -

 
such number of shares of Common Stock to which the Holder is entitled upon the Holder’s exercise of this Warrant or pursuant to the Company’s obligation pursuant to clause
(ii) below, and if on or after such Trading Day the Holder purchases (in an open market transaction or otherwise) shares of Common Stock to deliver in satisfaction of a sale by the Holder of shares of Common Stock issuable upon such exercise
that the Holder anticipated receiving from the Company (a “Buy-In”), then the Company shall, within three (3) Trading Days after the Holder’s request and in the Holder’s discretion, either (i) pay cash to the
Holder in an amount equal to the Holder’s total purchase price (including brokerage commissions and other reasonable out-of-pocket expenses, if any) for the shares of Common Stock so purchased (the “Buy-In Price”), at which
point the Company’s obligation to deliver such certificate (and to issue such shares of Common Stock) or credit such Holder’s balance account with DTC shall terminate, or (ii) promptly honor its obligation to deliver to the Holder a
certificate or certificates representing such shares of Common Stock or credit such Holder’s balance account with DTC and pay cash to the Holder in an amount equal to the excess (if any) of the Buy-In Price over the product of (A) such
number of shares of Common Stock, times (B) the Closing Bid Price on the date of exercise. 
 (d) Cashless
Exercise. Notwithstanding anything contained herein to the contrary, if, after the Effective Date, any Warrant Shares that are the subject of the Exercise Notice cannot be issued pursuant to Section 1145 of the Bankruptcy Code (as defined
in the Securities Purchase Agreement) or is otherwise not freely transferable without any restrictions or limitations, the Holder may, in its sole discretion, exercise this Warrant in whole or in part and, in lieu of making the cash payment
otherwise contemplated to be made to the Company upon such exercise in payment of the Aggregate Exercise Price, elect instead to receive upon such exercise the “Net Number” of shares of Common Stock determined according to the following
formula (a “Cashless Exercise”): 
 Net Number = (A x B) - (A x C) 

                       
             B 
 For purposes of the foregoing formula:

  

			
	A=	 	the total number of shares with respect to which this Warrant is then being exercised.
		
	 B=
	 	the Weighted Average Price of the Common Stock (as reported by Bloomberg) for the five (5) consecutive Trading Days ending on the date immediately preceding the date of the
Exercise Notice.
		
	 C=
	 	$0.001.

 (e) Disputes. In the case of
a dispute as to the determination of the Exercise Price or the arithmetic calculation of the Warrant Shares, the Company shall promptly issue to the Holder the number of Warrant Shares that are not disputed and resolve such dispute in accordance
with Section 12. 

  
 - 3 -

  

(f) Limitations on Exercises. The Company shall not effect the exercise of this Warrant, and the Holder shall
not have the right to exercise this Warrant, to the extent that after giving effect to such exercise, such Person (together with such Person’s affiliates) would beneficially own in excess of 4.99% (the “Maximum Percentage”) of
the shares of Common Stock outstanding immediately after giving effect to such exercise. For purposes of the foregoing sentence, the aggregate number of shares of Common Stock beneficially owned by such Person and its affiliates shall include the
number of shares of Common Stock issuable upon exercise of this Warrant with respect to which the determination of such sentence is being made, but shall exclude shares of Common Stock which would be issuable upon (i) exercise of the remaining,
unexercised portion of this Warrant beneficially owned by such Person and its affiliates and (ii) exercise or conversion of the unexercised or unconverted portion of any other securities of the Company beneficially owned by such Person and its
affiliates (including, without limitation, any convertible notes or convertible preferred stock or warrants) subject to a limitation on conversion or exercise analogous to the limitation contained herein. Except as set forth in the preceding
sentence, for purposes of this paragraph, beneficial ownership shall be calculated in accordance with Section 13(d) of the Securities Exchange Act of 1934, as amended (the “1934 Act”). For purposes of this Warrant, in
determining the number of outstanding shares of Common Stock, the Holder may rely on the number of outstanding shares of Common Stock as reflected in (1) the Company’s most recent Form 10-K, Form 10-Q, Current Report on Form 8-K or other
public filing with the Securities and Exchange Commission, as the case may be, (2) a more recent public announcement by the Company or (3) any other notice by the Company or the Transfer Agent setting forth the number of shares of Common
Stock outstanding. For any reason at any time, upon the written or oral request of the Holder, the Company shall within one (1) Business Day confirm orally and in writing to the Holder the number of shares of Common Stock then outstanding. In
any case, the number of outstanding shares of Common Stock shall be determined after giving effect to the conversion or exercise of securities of the Company, including the SPA Warrants, by the Holder and its affiliates since the date as of which
such number of outstanding shares of Common Stock was reported. By written notice to the Company, the Holder may from time to time increase or decrease the Maximum Percentage to any other percentage not in excess of 9.99% specified in such notice;
provided that (i) any such increase will not be effective until the sixty-first (61st) day after such notice is delivered to the Company, and (ii) any such increase or decrease will apply only to the Holder and not to any other holder of SPA Warrants. The provisions of this
paragraph shall be construed and implemented in a manner otherwise than in strict conformity with the terms of this Section 1(f) to correct this paragraph (or any portion hereof) which may be defective or inconsistent with the intended
beneficial ownership limitation herein contained or to make changes or supplements necessary or desirable to properly give effect to such limitation. 
 (g) Insufficient Authorized Shares. If at any time while this Warrant remains outstanding the Company does not have a sufficient number of authorized and unreserved shares of Common Stock to
satisfy its obligation to reserve for issuance upon exercise of this Warrant at least a number of shares of Common Stock equal to 100% (the “Required Reserve Amount”) of the maximum number of shares of Common Stock as shall from
time to time be necessary to effect the exercise of all of this Warrant then outstanding (an “Authorized Share Failure”), then the Company shall immediately take all action necessary to increase the Company’s authorized shares
of Common Stock to an amount sufficient to allow the Company to reserve the Required Reserve Amount for this Warrant then outstanding. Without 

  
 - 4 -

 
limiting the generality of the foregoing sentence, as soon as practicable after the date of the occurrence of an Authorized Share Failure, but in no event later than sixty (60) days after
the occurrence of such Authorized Share Failure, the Company shall hold a meeting of its stockholders for the approval of an increase in the number of authorized shares of Common Stock. In connection with such meeting, the Company shall provide each
stockholder with a proxy statement and shall use its reasonable best efforts to solicit its stockholders’ approval of such increase in authorized shares of Common Stock and to cause its board of directors to recommend to the stockholders that
they approve such proposal. 
 (h) Mandatory Exercise. If the Maximum Eligibility Number on December 22, 2010 is
greater than zero, then this Warrant shall be deemed to be exercised by a Cashless Exercise pursuant to Section 1(d) above and the Company shall be obligated to deliver all Warrant Shares in accordance with, and in the time periods specified
in, this Warrant as if the Holder had delivered an Exercise Notice on such date with respect to the maximum number of Warrant Shares exercisable hereunder. 
 2. ADJUSTMENT OF EXERCISE PRICE AND NUMBER OF WARRANT SHARES. The Exercise Price and the number of Warrant Shares shall be adjusted from time to time as follows: 

(a) Intentionally Omitted. 
 (b) Intentionally Omitted. 
 (c) Adjustment upon Subdivision or
Combination of shares of Common Stock. If the Company at any time on or after the Subscription Date subdivides (by any stock split, stock dividend, recapitalization or otherwise) one or more classes of its outstanding shares of Common Stock into
a greater number of shares, the Exercise Price in effect immediately prior to such subdivision will be proportionately reduced and the number of Warrant Shares will be proportionately increased. If the Company at any time on or after the
Subscription Date combines (by combination, reverse stock split or otherwise) one or more classes of its outstanding shares of Common Stock into a smaller number of shares, the Exercise Price in effect immediately prior to such combination will be
proportionately increased and the number of Warrant Shares will be proportionately decreased. Any adjustment under this Section 2(c) shall become effective at the close of business on the date the subdivision or combination becomes effective.

 (d) Holder’s Right of Alternative Exercise Price Following Issuance of Variable Securities. If the Company
issues or sells or, in accordance with this Section 2 is deemed to have issued or sold any Options or Convertible Securities after the Issuance Date that are convertible into or exchangeable or exercisable for shares of Common Stock at a price
which varies or may vary with the market price of the shares of Common Stock, including by way of one or more reset(s) to a fixed price (each of the formulations for such variable price being herein referred to as, a “Variable Price
Formulation”), the Company shall provide written notice thereof via facsimile and overnight courier to the Holder (the “Variable Notice”) on the date of issuance or deemed issuance of such Convertible Securities or Options.
From and after the date the Company issues or is deemed to have issued any such Convertible Securities or 

  
 - 5 -

 
Options with a Variable Price Formulation, but only for so long as such Convertible Securities or Options are outstanding, the Holder shall have the right, but not the obligation, in its sole
discretion to substitute any of the applicable Variable Price Formulation for the Exercise Price upon exercise of the Warrants held by it by designating in the Exercise Notice delivered upon exercise of such Warrant that solely for purposes of such
exercise the Holder is relying on the Variable Price Formulation rather than the Exercise Price then in effect. The Holder’s election to rely on a Variable Price Formulation for a particular exercise of Warrants shall not obligate the Holder to
rely on a Variable Price Formulation for any future exercise of Warrants. 
 3. RIGHTS UPON DISTRIBUTION OF ASSETS. If
the Company shall declare or make any dividend or other distribution of its assets (or rights to acquire its assets) to holders of shares of Common Stock, by way of return of capital or otherwise (including, without limitation, any distribution of
cash, stock or other securities, property or options by way of a dividend, spin off, reclassification, corporate rearrangement, scheme of arrangement or other similar transaction) (a “Distribution”), at any time after the issuance
of this Warrant, then, in each such case, upon an exercise of this Warrant, in whole or in part, the Holder will be entitled to receive the amount of any such Distribution that the Holder would have received if the Holder had held, immediately
before the date on which a record is taken for the declaration or payment of the Distribution, or, if no such record date is taken, the date as of which the record holders of shares of Common Stock are to be determined for the declaration or payment
of the Distribution, the number of shares of Common Stock that the Holder is entitled to receive upon such exercise (without taking into account any limitations or restrictions on the convertibility of this Warrant). 

4. PURCHASE RIGHTS; FUNDAMENTAL TRANSACTIONS. 
 (a) Purchase Rights. In addition to any adjustments pursuant to Section 2 above, if at any time the Company grants, issues or sells any Options, Convertible Securities or rights to purchase
stock, warrants, securities or other property pro rata to the record holders of any class of Common Stock (the “Purchase Rights”), then the Holder will be entitled to acquire, upon the terms applicable to such Purchase Rights, the
aggregate Purchase Rights which the Holder could have acquired if the Holder had held the number of shares of Common Stock acquirable upon complete exercise of this Warrant (without regard to any limitations on the exercise of this Warrant)
immediately before the date on which a record is taken for the grant, issuance or sale of such Purchase Rights, or, if no such record is taken, the date as of which the record holders of shares of Common Stock are to be determined for the grant,
issue or sale of such Purchase Rights. 
 (b) Fundamental Transactions. The Company shall not enter into or be party to
a Fundamental Transaction unless (i) the Successor Entity assumes in writing all of the obligations of the Company under this Warrant and the other Transaction Documents in accordance with the provisions of this Section (4)(b) pursuant to
written agreements in form and substance satisfactory to the Required Holders and approved by the Required Holders prior to such Fundamental Transaction, including agreements to deliver to each holder of the SPA Warrants in exchange for such
Warrants a security of the Successor Entity evidenced by a written instrument substantially similar in form and substance to this Warrant, including, without limitation, an adjusted exercise price equal to the value for the shares of Common Stock
reflected by the terms of such Fundamental Transaction, and exercisable for a corresponding number of 

  
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shares of capital stock equivalent to the shares of Common Stock acquirable and receivable upon exercise of this Warrant (without regard to any limitations on the exercise of this Warrant) prior
to such Fundamental Transaction, and satisfactory to the Required Holders and (ii) the Successor Entity (including its Parent Entity) is a publicly traded corporation whose common stock is quoted on or listed for trading on an Eligible Market.
Upon the occurrence of any Fundamental Transaction, the Successor Entity shall succeed to, and be substituted for (so that from and after the date of such Fundamental Transaction, the provisions of this Warrant referring to the “Company”
shall refer instead to the Successor Entity), and may exercise every right and power of the Company and shall assume all of the obligations of the Company under this Warrant with the same effect as if such Successor Entity had been named as the
Company herein. Upon consummation of the Fundamental Transaction, the Successor Entity shall deliver to the Holder confirmation that there shall be issued upon exercise of this Warrant at any time after the consummation of the Fundamental
Transaction, in lieu of the shares of Common Stock (or other securities, cash, assets or other property) issuable upon the exercise of the Warrant prior to such Fundamental Transaction, such shares of the publicly traded common stock or common
shares (or its equivalent) of the Successor Entity (including its Parent Entity) which the Holder would have been entitled to receive upon the happening of such Fundamental Transaction had this Warrant been converted immediately prior to such
Fundamental Transaction, as adjusted in accordance with the provisions of this Warrant. In addition to and not in substitution for any other rights hereunder, prior to the consummation of any Fundamental Transaction pursuant to which holders of
shares of Common Stock are entitled to receive securities or other assets with respect to or in exchange for shares of Common Stock (a “Corporate Event”), the Company shall make appropriate provision to insure that the Holder will
thereafter have the right to receive upon an exercise of this Warrant at any time after the consummation of the Corporate Event but prior to the Expiration Date, in lieu of shares of Common Stock (or other securities, cash, assets or other property)
purchasable upon the exercise of this Warrant prior to such Corporate Event, such shares of stock, securities, cash, assets or any other property whatsoever (including warrants or other purchase or subscription rights) which the Holder would have
been entitled to receive upon the happening of such Corporate Event had this Warrant been exercised immediately prior to such Corporate Event. Provision made pursuant to the preceding sentence shall be in a form and substance reasonably satisfactory
to the Required Holders. The provisions of this Section shall apply similarly and equally to successive Fundamental Transactions and Corporate Events and shall be applied without regard to any limitations on the exercise of this Warrant. 

(c) Notwithstanding the foregoing, in the event of a Change of Control, at the request of the Holder delivered
before the ninetieth (90th) day after the
consummation of such Change of Control, the Company (or the Successor Entity) shall purchase this Warrant from the Holder by paying to the Holder, within five (5) Business Days after such request (or, if later, on the effective date of the
Change of Control), cash in an amount equal to the Black Scholes Value of the remaining unexercised portion of this Warrant on the date of such Change of Control. 
 5. NONCIRCUMVENTION. The Company hereby covenants and agrees that the Company will not, by amendment of its Certificate of Incorporation or Bylaws, or through any reorganization, transfer of
assets, consolidation, merger, scheme of arrangement, dissolution, issue or sale of securities, or any other voluntary action, avoid or seek to avoid the observance or performance of any of the terms of this Warrant, and will at all times in good
faith carry out all 

  
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the provisions of this Warrant and take all action as may be required to protect the rights of the Holder. Without limiting the generality of the foregoing, the Company (i) shall not
increase the par value of any shares of Common Stock receivable upon the exercise of this Warrant above the Exercise Price then in effect, (ii) shall take all such actions as may be necessary or appropriate in order that the Company may validly
and legally issue fully paid and nonassessable shares of Common Stock upon the exercise of this Warrant, and (iii) shall, so long as any of the SPA Warrants are outstanding, take all action necessary to reserve and keep available out of its
authorized and unissued shares of Common Stock, solely for the purpose of effecting the exercise of the SPA Warrants, 130% of the number of shares of Common Stock as shall from time to time be necessary to effect the exercise of the SPA Warrants
then outstanding (without regard to any limitations on exercise). 
 6. WARRANT HOLDER NOT DEEMED A STOCKHOLDER. Except
as otherwise specifically provided herein, the Holder, solely in such Person’s capacity as a holder of this Warrant, shall not be entitled to vote or receive dividends or be deemed the holder of share capital of the Company for any purpose, nor
shall anything contained in this Warrant be construed to confer upon the Holder, solely in such Person’s capacity as the Holder of this Warrant, any of the rights of a stockholder of the Company or any right to vote, give or withhold consent to
any corporate action (whether any reorganization, issue of stock, reclassification of stock, consolidation, merger, conveyance or otherwise), receive notice of meetings, receive dividends or subscription rights, or otherwise, prior to the issuance
to the Holder of the Warrant Shares which such Person is then entitled to receive upon the due exercise of this Warrant. In addition, nothing contained in this Warrant shall be construed as imposing any liabilities on the Holder to purchase any
securities (upon exercise of this Warrant or otherwise) or as a stockholder of the Company, whether such liabilities are asserted by the Company or by creditors of the Company. Notwithstanding this Section 6, the Company shall provide the
Holder with copies of the same notices and other information given to the stockholders of the Company generally, contemporaneously with the giving thereof to the stockholders. 
 7. REISSUANCE OF WARRANTS. 
 (a) Transfer of Warrant. If this
Warrant is to be transferred, the Holder shall surrender this Warrant to the Company, whereupon the Company will forthwith issue and deliver upon the order of the Holder a new Warrant (in accordance with Section 7(d)), registered as the Holder
may request, representing the right to purchase the number of Warrant Shares being transferred by the Holder and, if less than the total number of Warrant Shares then underlying this Warrant is being transferred, a new Warrant (in accordance with
Section 7(d)) to the Holder representing the right to purchase the number of Warrant Shares not being transferred. 
 (b)
Lost, Stolen or Mutilated Warrant. Upon receipt by the Company of evidence reasonably satisfactory to the Company of the loss, theft, destruction or mutilation of this Warrant, and, in the case of loss, theft or destruction, of any
indemnification undertaking by the Holder to the Company in customary form and, in the case of mutilation, upon surrender and cancellation of this Warrant, the Company shall execute and deliver to the Holder a new Warrant (in accordance with
Section 7(d)) representing the right to purchase the Warrant Shares then underlying this Warrant. 

  
 - 8 -

  
 (c) Exchangeable
for Multiple Warrants. This Warrant is exchangeable, upon the surrender hereof by the Holder at the principal office of the Company, for a new Warrant or Warrants (in accordance with Section 7(d)) representing in the aggregate the right to
purchase the number of Warrant Shares then underlying this Warrant, and each such new Warrant will represent the right to purchase such portion of such Warrant Shares as is designated by the Holder at the time of such surrender; provided, however,
that no Warrants for fractional shares of Common Stock shall be given. 
 (d) Issuance of New Warrants. Whenever the
Company is required to issue a new Warrant pursuant to the terms of this Warrant, such new Warrant (i) shall be of like tenor with this Warrant, (ii) shall represent, as indicated on the face of such new Warrant, the right to purchase the
Warrant Shares then underlying this Warrant (or in the case of a new Warrant being issued pursuant to Section 7(a) or Section 7(c), the Warrant Shares designated by the Holder which, when added to the number of shares of Common Stock
underlying the other new Warrants issued in connection with such issuance, does not exceed the number of Warrant Shares then underlying this Warrant), (iii) shall have an issuance date, as indicated on the face of such new Warrant which is the
same as the Issuance Date, and (iv) shall have the same rights and conditions as this Warrant. 
 8. NOTICES.
Whenever notice is required to be given under this Warrant, unless otherwise provided herein, such notice shall be given in accordance with Section 9(f) of the Securities Purchase Agreement. The Company shall provide the Holder with prompt
written notice of all actions taken pursuant to this Warrant, including in reasonable detail a description of such action and the reason therefor. Without limiting the generality of the foregoing, the Company will give written notice to the Holder
(i) immediately upon any adjustment of the Exercise Price, setting forth in reasonable detail, and certifying, the calculation of such adjustment and (ii) at least fifteen (15) days prior to the date on which the Company closes its
books or takes a record (A) with respect to any dividend or distribution upon the shares of Common Stock, (B) with respect to any grants, issuances or sales of any Options, Convertible Securities or rights to purchase stock, warrants,
securities or other property to holders of shares of Common Stock or (C) for determining rights to vote with respect to any Fundamental Transaction, dissolution or liquidation, provided in each case that such information shall be made known to
the public prior to or in conjunction with such notice being provided to the Holder. 
 9. AMENDMENT AND WAIVER. Except
as otherwise provided herein, the provisions of this Warrant may be amended and the Company may take any action herein prohibited, or omit to perform any act herein required to be performed by it, only if the Company has obtained the written consent
of the Required Holders. No such amendment shall be effective to the extent that it applies to less than all of the holders of the SPA Warrants then outstanding. 
 10. GOVERNING LAW. This Warrant shall be governed by and construed and enforced in accordance with, and all questions concerning the construction, validity, interpretation and performance of this
Warrant shall be governed by, the internal laws of the State of New York, without giving effect to any choice of law or conflict of law provision or rule (whether of the State of New York or any other jurisdictions) that would cause the application
of the laws of any jurisdictions other than the State of New York. The Holder and the Company hereby irrevocably submit to the exclusive jurisdiction of the state and federal courts sitting in

  
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The City of New York, Borough of Manhattan for the adjudication of any dispute hereunder or in connection herewith or with any transaction contemplated hereby or discussed herein, and hereby
irrevocably waive, and agree not to assert in any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of any such court, that such suit, action or proceeding is brought in an inconvenient forum or that the
venue of such suit, action or proceeding is improper. Nothing contained herein shall be deemed to limit in any way any right to serve process in any manner permitted by law. Nothing contained herein shall be deemed or operate to preclude the Holder
from bringing suit or taking other legal action against the Company in any other jurisdiction to collect on the Company’s obligations to the Holder, to realize on any collateral or any other security for such obligations, or to enforce a
judgment or other court ruling in favor of the Holder. THE COMPANY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION WITH OR ARISING OUT OF THIS
WARRANT OR ANY TRANSACTION CONTEMPLATED HEREBY. 
 11. CONSTRUCTION; HEADINGS. This Warrant shall be deemed to be
jointly drafted by the Company and all the Buyers and shall not be construed against any person as the drafter hereof. The headings of this Warrant are for convenience of reference and shall not form part of, or affect the interpretation of, this
Warrant. 
 12. DISPUTE RESOLUTION. In the case of a dispute as to the determination of the Exercise Price or the
arithmetic calculation of the Warrant Shares, the Company shall submit the disputed determinations or arithmetic calculations via facsimile within two (2) Business Days of receipt of the Exercise Notice giving rise to such dispute, as the case
may be, to the Holder. If the Holder and the Company are unable to agree upon such determination or calculation of the Exercise Price or the Warrant Shares within three (3) Business Days of such disputed determination or arithmetic calculation
being submitted to the Holder, then the Company shall, within two (2) Business Days submit via facsimile (a) the disputed determination of the Exercise Price to an independent, reputable investment bank selected by the Company and approved
by the Holder or (b) the disputed arithmetic calculation of the Warrant Shares to the Company’s independent, outside accountant. The Company shall cause at its expense the investment bank or the accountant, as the case may be, to perform
the determinations or calculations and notify the Company and the Holder of the results no later than ten Business Days from the time it receives the disputed determinations or calculations. Such investment bank’s or accountant’s
determination or calculation, as the case may be, shall be binding upon all parties absent demonstrable error. 
 13.
REMEDIES, OTHER OBLIGATIONS, BREACHES AND INJUNCTIVE RELIEF. The remedies provided in this Warrant shall be cumulative and in addition to all other remedies available under this Warrant and the other Transaction Documents, at law or in equity
(including a decree of specific performance and/or other injunctive relief), and nothing herein shall limit the right of the Holder to pursue actual damages for any failure by the Company to comply with the terms of this Warrant. The Company
acknowledges that a breach by it of its obligations hereunder will cause irreparable harm to the Holder and that the remedy at law for any such breach may be inadequate. The Company therefore agrees that, in the event of any such breach or
threatened breach, the holder of this Warrant shall be entitled, in addition to all other available remedies, to an injunction restraining any breach, without the necessity of showing economic loss and without any bond or other security being
required. 

  
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 14. TRANSFER.
This Warrant may be offered for sale, sold, transferred or assigned without the consent of the Company, except as may otherwise be required by Section 2(f) of the Securities Purchase Agreement. 

15. SEVERABILITY. If any provision of this Warrant is prohibited by law or otherwise determined to be invalid or unenforceable by
a court of competent jurisdiction, the provision that would otherwise be prohibited, invalid or unenforceable shall be deemed amended to apply to the broadest extent that it would be valid and enforceable, and the invalidity or unenforceability of
such provision shall not affect the validity of the remaining provisions of this Warrant so long as this Warrant as so modified continues to express, without material change, the original intentions of the parties as to the subject matter hereof and
the prohibited nature, invalidity or unenforceability of the provision(s) in question does not substantially impair the respective expectations or reciprocal obligations of the parties or the practical realization of the benefits that would
otherwise be conferred upon the parties. The parties will endeavor in good faith negotiations to replace the prohibited, invalid or unenforceable provision(s) with a valid provision(s), the effect of which comes as close as possible to that of the
prohibited, invalid or unenforceable provision(s). 
 16. CERTAIN DEFINITIONS. For purposes of this Warrant, the
following terms shall have the following meanings: 
 (a) “Black Scholes Value” means the value of this
Warrant based on the Black and Scholes Option Pricing Model obtained from the “OV” function on Bloomberg determined as of the day immediately following the public announcement of the applicable Fundamental Transaction for pricing purposes
and reflecting (i) a risk-free interest rate corresponding to the U.S. Treasury rate for a period equal to the remaining term of this Warrant as of such date of request, (ii) an expected volatility equal to 100%, (iii) the underlying
price per share used in such calculation shall be the sum of the price per share being offered in cash, if any, plus the value of any non-cash consideration, if any, being offered in the Fundamental Transaction and (iv) a 360 day annualization
factor. 
 (b) “Bloomberg” means Bloomberg Financial Markets. 

(c) “Business Day” means any day other than Saturday, Sunday or other day on which commercial banks in The City of New
York are authorized or required by law to remain closed. 
 (d) “Change of Control” means any Fundamental
Transaction other than (i) any merger, consolidation, reorganization, recapitalization or reclassification of the Common Stock in which this Warrant remains exercisable for publicly traded common stock (or its equivalent) of the Successor
Entity and in which the holders of the Company’s voting power immediately prior to such merger, consolidation, reorganization, recapitalization or reclassification continue after such merger, consolidation, reorganization, recapitalization or
reclassification to hold publicly traded securities and, directly or indirectly, the voting power of 

  
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the Successor Entity necessary to elect a majority of the members of the board of directors (or their equivalent if other than a corporation) of such Successor Entity and to approve any measure
requiring the approval of holders of a majority of the common stock (or its equivalent) of the Successor Entity, (ii) a license, distribution or development agreement relating to one or more of the Company’s biotech products entered into
on an arms length basis for reasonably equivalent value with a Person that is not a direct or indirect affiliate of the Company or any officer, director or employee thereof and that is in the business of commercializing or developing biotech
products or (iii) pursuant to a migratory merger effected solely for the purpose of changing the jurisdiction of incorporation of the Company. 
 (e) “Closing Bid Price” and “Closing Sale Price” means, for any security as of any date, the last closing bid price and last closing trade price, respectively, for such
security on the Principal Market, as reported by Bloomberg, or, if the Principal Market begins to operate on an extended hours basis and does not designate the closing bid price or the closing trade price, as the case may be, then the last bid price
or the last trade price, respectively, of such security prior to 4:00:00 p.m., New York time, as reported by Bloomberg, or, if the Principal Market is not the principal securities exchange or trading market for such security, the last closing bid
price or last trade price, respectively, of such security on the principal securities exchange or trading market where such security is listed or traded as reported by Bloomberg, or if the foregoing do not apply, the last closing bid price or last
trade price, respectively, of such security in the over-the-counter market on the electronic bulletin board for such security as reported by Bloomberg, or, if no closing bid price or last trade price, respectively, is reported for such security by
Bloomberg, the average of the bid prices, or the ask prices, respectively, of any market makers for such security as reported in the “pink sheets” by Pink Sheets LLC (formerly the National Quotation Bureau, Inc.). If the Closing Bid Price
or the Closing Sale Price cannot be calculated for a security on a particular date on any of the foregoing bases, the Closing Bid Price or the Closing Sale Price, as the case may be, of such security on such date shall be the fair market value as
mutually determined by the Company and the Holder. If the Company and the Holder are unable to agree upon the fair market value of such security, then such dispute shall be resolved pursuant to Section 12. All such determinations shall be
appropriately adjusted for any stock dividend, stock split, stock combination or other similar transaction during the applicable calculation period. 
 (f) “Common Stock” means (i) the Company’s shares of Common Stock, par value $0.01 per share, and (ii) any share capital into which such Common Stock shall have been
changed or any share capital resulting from a reclassification of such Common Stock. 
 (g) “Convertible
Securities” means any stock or securities (other than Options) directly or indirectly convertible into or exercisable or exchangeable for shares of Common Stock. 
 (h) “Eligible Market” means the Principal Market, any other market tier operated by Pink OTC Markets Inc., The Nasdaq Capital Market, The NASDAQ Global Market, The NASDAQ Global Select
Market, The New York Stock Exchange, Inc., The NYSE Amex or the OTC Bulletin Board. 

  
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 (i)
“Expiration Date” means December 23, 2010 or, if such date falls on a Holiday, the next day that is not a Holiday. 
 (j) “Fundamental Transaction” means that (A) the Company shall, directly or indirectly, in one or more related transactions, (i) consolidate or merge with or into (whether or
not the Company is the surviving corporation) another Person, or (ii) sell, assign, transfer, convey or otherwise dispose of all or substantially all of the properties or assets of the Company to another Person, or (iii) allow another
Person to make a purchase, tender or exchange offer that is accepted by the holders of more than the 50% of the outstanding shares of Common Stock (not including any shares of Common Stock held by the Person or Persons making or party to, or
associated or affiliated with the Persons making or party to, such purchase, tender or exchange offer), or (iv) consummate a stock purchase agreement or other business combination (including, without limitation, a reorganization,
recapitalization, spin-off or scheme of arrangement) with another Person whereby such other Person acquires more than the 50% of the outstanding shares of Common Stock (not including any shares of Common Stock held by the other Person or other
Persons making or party to, or associated or affiliated with the other Persons making or party to, such stock purchase agreement or other business combination), or (v) reorganize, recapitalize or reclassify its Common Stock or (B) any
“person” or “group” (as these terms are used for purposes of Sections 13(d) and 14(d) of the 1934 Act) is or shall become the “beneficial owner” (as defined in Rule 13d-3 under the 1934 Act), directly or indirectly, of
50% of the aggregate ordinary voting power represented by issued and outstanding shares of Common Stock. Notwithstanding the foregoing, the term “Fundamental Transaction” shall not include any issuance of securities or any other
transaction contemplated to occur at the Effective Date pursuant to the Company’s Plan of Reorganization (as defined in the SPA Securities). 
 (k) “Maximum Eligibility Number” means initially zero and such number shall be increased, on December 22, 2010 if 80% of the Price Adjusted Market Price is less than $0.91, to a
number equal to the difference between (I) the quotient determined by dividing (A) the aggregate principal amount of SPA Securities purchased by the Holder (or such Holder’s assignee) on the Issuance Date by (B) the greater of
(1) $0.50 (subject to adjustment for stock splits, stock dividends, recapitalizations or other similar events with respect to the Company’s Common Stock) and (2) 80% of the Price Adjusted Market Price and (II) the quotient determined
by dividing the aggregate principal amount of SPA Securities purchased by the Holder (or such Holder’s assignee) on the Issuance Date by (B) $0.91 provided, that in no event shall the Maximum Eligibility Number exceed the number of Warrant
Shares set forth on the first page of this Warrant (as adjusted pursuant to the terms set forth herein). 
 (l)
“Options” means any rights, warrants or options to subscribe for or purchase shares of Common Stock or Convertible Securities. 
 (m) “Parent Entity” of a Person means an entity that, directly or indirectly, controls the applicable Person and whose common shares or common stock or equivalent equity security is
quoted or listed on an Eligible Market, or, if there is more than one such Person or Parent Entity, the Person or Parent Entity with the largest public market capitalization as of the date of consummation of the Fundamental Transaction. 

  
 - 13 -

  
 (n)
“Person” means an individual, a limited liability company, a partnership, a joint venture, a corporation, a trust, an unincorporated organization, any other entity and a government or any department or agency thereof. 

(o) “Price Adjusted Market Price” means the arithmetic average of the Weighted Average Prices during the period
beginning on (and including) December 1, 2010 and ending on (and including) December 21, 2010.  
 (p)
“Principal Market” means the OTCQX market tier operated by Pink OTC Markets Inc. or such Eligible Market on which such security is then listed or traded as reported by Bloomberg. 

(q) “Required Holders” means the holders of the SPA Warrants representing at least two-thirds of the shares of Common
Stock underlying the SPA Warrants then outstanding. 
 (r) “SPA Securities” means the Exchange Notes (as
defined in the Securities Purchase Agreement). 
 (s) “Successor Entity” means the Person (or, if so elected
by the Required Holders, the Parent Entity) formed by, resulting from or surviving any Fundamental Transaction or the Person (or, if so elected by the Required Holders, the Parent Entity) with which such Fundamental Transaction shall have been
entered into. 
 (t) “Trading Day” means any day on which the Common Stock is traded on the Principal Market,
or, if the Principal Market is not the principal trading market for the Common Stock, then on the principal securities exchange or securities market on which the Common Stock is then traded; provided that “Trading Day” shall not include
any day on which the Common Stock is scheduled to trade on such exchange or market for less than 4.5 hours or any day that the Common Stock is suspended from trading during the final hour of trading on such exchange or market (or if such exchange or
market does not designate in advance the closing time of trading on such exchange or market, then during the hour ending at 4:00:00 p.m., New York time). 
 (u) “Weighted Average Price” means, for any security as of any date, the dollar volume-weighted average price for such security on the Principal Market during the period beginning at
9:30:01 a.m., New York time (or such other time as the Principal Market publicly announces is the official open of trading), and ending at 4:00:00 p.m., New York time (or such other time as the Principal Market publicly announces is the official
close of trading), as reported by Bloomberg through its “Volume at Price” function or, if the foregoing does not apply, the dollar volume-weighted average price of such security in the over-the-counter market on the electronic bulletin
board for such security during the period beginning at 9:30:01 a.m., New York time (or such other time as the Principal Market publicly announces is the official open of trading), and ending at 4:00:00 p.m., New York time (or such other time as the
Principal Market publicly announces is the official close of trading), as reported by Bloomberg, or, if no dollar volume-weighted average price is reported for such security by Bloomberg for such hours, the average of the highest closing bid price
and the lowest closing ask price of any of the market 

  
 - 14 -

 
makers for such security as reported in the “pink sheets” by Pink Sheets LLC (formerly the National Quotation Bureau, Inc.). If the Weighted Average Price cannot be calculated for a
security on a particular date on any of the foregoing bases, the Weighted Average Price of such security on such date shall be the fair market value as mutually determined by the Company and the Holder. If the Company and the Holder are unable to
agree upon the fair market value of such security, then such dispute shall be resolved pursuant to Section 12 with the term “Weighted Average Price” being substituted for the term “Exercise Price.” All such determinations
shall be appropriately adjusted for any stock dividend, stock split, stock combination or other similar transaction during the applicable calculation period. 
 [Signature Page Follows] 

  
 - 15 -

  
 IN WITNESS
WHEREOF, the Company has caused this Warrant to Purchase Common Stock to be duly executed as of the Issuance Date set out above. 
  

			
	BIOVEST INTERNATIONAL, INC.
		
	By:	 	  

		 	Name:
		 	Title:

  
 EXHIBIT A

 EXERCISE NOTICE 
 TO BE EXECUTED BY THE REGISTERED HOLDER TO EXERCISE THIS 
 WARRANT TO
PURCHASE COMMON STOCK 
 BIOVEST INTERNATIONAL, INC. 

The undersigned holder hereby exercises the right to purchase
                     of the Common Stock (“Warrant Shares”) of Biovest International, Inc., a company incorporated under the
laws of Delaware (the “Company”), evidenced by the attached Warrant to Purchase Common Stock (the “Warrant”). Capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in
the Warrant. 
 1. Form of Exercise Price. The Holder intends that payment of the Exercise Price shall be made as: 

             a “Cash Exercise” with respect to
                     Warrant Shares; and/or 
              a “Cashless Exercise” with respect to
                     Warrant Shares. 
 2. Payment of Exercise Price. In the event that the holder has elected a Cash Exercise with respect to some or all of the Warrant Shares to be issued pursuant hereto, the holder shall pay the Aggregate
Exercise Price in the sum of $             to the Company in accordance with the terms of the Warrant. 
 3. Delivery of Warrant Shares. The Company shall deliver to the holder                     
Warrant Shares in accordance with the terms of the Warrant. 
 4. The undersigned holder hereby represents and warrants that
after giving effect to the exercise of the Warrant contemplated by this Exercise Notice, such holder will not be in violation of the beneficial ownership limits specified in Section 1(f) of the Warrant, as increased or decreased pursuant to
terms contained therein. 
 5. Is the Variable Price Formulation being relied on pursuant to Section 2.1(d)? (check one)
YES        NO         
 Date:
                 ,          

 

			
	Account Number:	 	  

	 (if electronic book entry transfer)

  

			
	Transaction Code Number:	 	  

	 (if electronic book entry transfer)

  

			
	  

	Name of Registered Holder
		
		 	  

		 	Name:
		 	Title:

  
 ACKNOWLEDGMENT

 The Company hereby acknowledges this Exercise Notice and hereby directs StockTrans, Inc. to issue the above indicated
number of shares of Common Stock in accordance with the Transfer Agent Instructions dated October [    ], 2010 from the Company and acknowledged and agreed to by StockTrans, Inc. 

 

			
	BIOVEST INTERNATIONAL, INC.
		
	By:	 	  

		 	Name:
		 	Title:

  
 Exhibit C-1 

PLEDGE, COLLATERAL ACCOUNT AND SECURITY AGREEMENT 
 PLEDGE, COLLATERAL ACCOUNT AND SECURITY AGREEMENT, dated as of October 19, 2010 (this “Agreement”), by and between Biovest International, Inc., a Delaware corporation (the
“Pledgor”), in favor of Empery Asset Master LTD, a Cayman limited company, in its capacity as collateral agent (in such capacity, the “Agent”) for the “Buyers” party to the Securities Purchase Agreement
referred to below. 
 W I T N E S S E T H: 
 WHEREAS, on November 10, 2008, (the “Petition Date”), Accentia Biopharmaceuticals, Inc. (“Accentia”) and its Subsidiaries, the Pledgor, Analytica International,
Inc., TEAMM Pharmaceuticals, Inc., AccentRx, Inc., Accentia Specialty Pharmacy, Inc., Biovax, Inc., AutovaxID, Inc., Biolender, LLC and Biolender II, LLC (hereinafter collectively referred to as the “Debtors”) filed voluntary
petitions (the “Chapter 11 Cases”) for relief under Chapter 11 of Title 11 of the United States Code, 11 U.S.C. §§ 101-1330 (as amended, the “Bankruptcy Code”), with the United States Bankruptcy Court for
the Middle District of Florida (Tampa Division) (the “Bankruptcy Court”). Since the Petition Date, the Debtors have continued to operate their businesses and manage their properties as debtors in possession pursuant to Sections
1107(a) and 1108 of the Bankruptcy Code; 
 WHEREAS, the Pledgor has authorized the issuance of a new series of senior secured
convertible notes of the Pledgor (as amended, restated or otherwise modified from time to time, together with any notes issued in exchange or replacement therefor, the “Initial Notes”), pursuant to the terms of that certain
Securities Purchase Agreement, dated as of the date hereof (as amended, restated or otherwise modified from time to time, the “Securities Purchase Agreement”), by and among the Pledgor and the investors listed on the Schedule of
Buyers attached thereto. 
 WHEREAS, it is a condition precedent to the Buyers entering into the Securities Purchase Agreement
that the Pledgor execute and deliver to the Agent this Agreement providing for the pledge to the Agent of, and the grant to the Agent of a security interest in, account number 2000045511594 (the “Account”) maintained by the Pledgor
with Wells Fargo Bank, National Association or any successor entity (the “Bank”), including, without limitation, all securities, cash and investment property now or hereafter held in the Account; 

NOW, THEREFORE, in consideration of the premises and the agreements herein and in order to induce the Buyers to enter into the Securities
Purchase Agreement, the Pledgor hereby agrees with the Agent, for the benefit of the Buyers, as follows: 
 SECTION 1.
Definitions. All terms used in this Agreement which are defined in the Securities Purchase Agreement or Article 8 or 9 of the Uniform Commercial Code (the “Code”) in effect in the State of New York from time to time and which
are not otherwise defined herein shall have the same meanings herein as set forth therein. 
 SECTION 2. Pledge and Grant of
Security Interest. As collateral security for all of the Obligations (as defined in Section 3 hereof), the Pledgor hereby pledges and assigns to the Agent, for the benefit of the Buyers, and grants to the Agent, for the benefit of the
Buyers, a continuing security interest in, the following (the “Collateral”): 
 (a) the Account, all
securities, financial assets and cash which may from time to time be in the Account and all certificates and instruments, if any, from time to time representing or evidencing, the Account; 

  
 (b) all investments
of cash now or hereafter in the Account and all promissory notes, bonds, securities, certificates and instruments, if any, from time to time representing or evidencing such investments; 

(c) all interest, dividends, cash, instruments, promissory notes, certificates, shares, units, earnings, securities (whether
certificated or uncertificated), options and other rights, contractual or otherwise, in respect thereof and all other property from time to time received, receivable or otherwise distributed in respect of or in exchange for any or all of the then
existing Collateral; 
 (d) all investment property contained in, arising from or related to the Account and all securities
entitlements of the Pledgor in the Account; and 
 (e) to the extent not described above, all proceeds of any and all of the
foregoing Collateral; 
 in each case, whether now owned or hereafter acquired by the Pledgor and howsoever such interest therein may arise or
appear (whether by ownership, security interest, claim or otherwise). 
 SECTION 3. Security for Obligations. The
security interest created hereby in the Collateral constitutes continuing collateral security for all of the following obligations whether now existing or hereafter incurred (the “Obligations”): 

(a) the prompt payment by the Pledgor, as and when due and payable, of all amounts from time to time owing by the Pledgor in respect of
the the Initial Notes, including, without limitation, principal of and interest on the Initial Notes (including, without limitation, all interest that accrues after the commencement of any case, proceeding or other action relating to the bankruptcy
or insolvency of the Pledgor, whether or not a claim for post-filing interest is allowed in such proceeding), all fees, commissions, expense reimbursements, indemnifications and all other amounts due or to become due under the Transaction Documents;
and 
 (b) the due performance and observance by the Pledgor of all of its other obligations from time to time existing in
respect of this Agreement, the Securities Purchase Agreement, the Initial Notes, and the other Transaction Documents. 
 SECTION
4. Establishment of Collateral Account; Delivery of the Collateral. 
 (a) The Pledgor has established and will maintain
with the Bank the Account. The Account shall be under the sole dominion and control of the Agent, for the benefit of the Buyers, and the Agent, for the benefit of the Buyers, shall have the sole right to make

  
 -2-

 
withdrawals from the Account and to exercise rights with respect to the securities, cash, financial assets and other investment property from time to time on deposit or held therein. The
Collateral shall be held by the Bank in the Account pursuant to the terms hereof and the Deposit Account Control Agreement, dated as of October 19, 2010 (the “Control Agreement”) among the Pledgor, the Buyers and the Bank.

 (b) If the Pledgor shall receive, by virtue of the Pledgor’s being or having been an owner of any Collateral, any
(i) stock certificate, promissory note or other instrument, (ii) option or right, whether as an addition to, substitution for, or in exchange for, any Collateral, or otherwise, or (iii) payment in cash or in securities or other
property, the Pledgor shall receive such promissory note, instrument, option, right, payment or distribution in trust for the benefit of the Agent, shall segregate it from the Pledgor’s other property and shall deliver it forthwith to the Agent
or the Bank in the exact form received, with any necessary endorsement and/or appropriate stock powers duly executed in blank, to be held by the Agent or the Bank as Collateral and as further collateral security for the Obligations. 

SECTION 5. Representations and Warranties. The Pledgor represents and warrants as follows: 

(a) The Pledgor is duly organized and validly existing in good standing under the laws of the jurisdiction in which it is incorporated,
and has the requisite power and authorization to own its properties and to carry on its business as now being conducted. Subject only to Bankruptcy Court approval, the Pledgor has the requisite power and authority to enter into and perform its
obligations under this Agreement. The execution and delivery of this Agreement by the Pledgor and the consummation by the Pledgor of the transactions contemplated hereby have been duly authorized by the Pledgor’s Board of Directors and no
further filing, consent, or authorization is required by the Pledgor, its Board of Directors or its stockholders. 
 (b) The
execution, delivery and performance by the Pledgor of this Agreement, and the exercise by the Agent of any of its rights and remedies hereunder, (i) do not and will not contravene any law or regulation (including, without limitation, Regulation
T, U or X of the Board of Governors of the Federal Reserve System of the United States), or any contractual restriction binding on or affecting the Pledgor or any of the Pledgor’s properties, and (ii) do not and will not result in or
require the creation of any security interest or other charge or encumbrance upon or with respect to any of the Pledgor’s properties, other than in favor of the Agent. 
 (c) This Agreement is a legal, valid and binding obligation of the Pledgor, enforceable against the Pledgor in accordance with its terms, except as may be limited by applicable bankruptcy, insolvency,
reorganization, moratorium or other similar laws relating to or limiting creditor’s rights generally or by equitable principles relating to enforceability (whether enforcement is sought in equity or at law). 

(d) There is no action, suit or proceeding pending or, to the Pledgor’s knowledge, threatened or otherwise affecting the Pledgor or
the Account before any court or other governmental authority or arbitrator that is reasonably likely to materially adversely affect the financial condition of the Pledgor or the Pledgor’s ability to perform the obligations of the Pledgor
hereunder and under the other Transaction Documents. 

  
 -3-

  
 (e) No authorization
or approval or other action by, and no notice to or filing with, any governmental authority or other regulatory body or any other Person is required for (i) the due execution, delivery and performance by the Pledgor of this Agreement,
(ii) the grant by the Pledgor, or the perfection, of the security interest purported to be created hereby in the Collateral or (iii) the exercise by the Agent of any of its rights and remedies hereunder. 

(f) The Pledgor is and will be at all times the legal and beneficial owner of the Collateral, free and clear of any lien, security
interest, option or other charge or encumbrance except for the security interest created by this Agreement and any security interest of the Bank in the Account. There is no financing statement naming the Pledgor as debtor (or similar document or
instrument of registration under the law of any jurisdiction) now on file or registered in any public office covering any interest of the Pledgor in any of the Collateral. 
 (g) This Agreement creates a valid security interest in favor of the Agent in the Collateral, as security for the Obligations. The Bank’s having possession in the Account of all certificates,
instruments and cash constituting Collateral from time to time and the execution and delivery of the Control Agreement results in the perfection of such security interest. Such security interest is, or in the case of Collateral in which the Pledgor
obtains rights after the date hereof, will be, a perfected, first priority security interest. All action necessary or desirable to perfect and protect such security interest has been duly taken, except the Agent’s and/or the Bank’s having
possession of certificates, instruments and cash constituting Collateral after the date hereof. 
 SECTION 6. Covenants as to
the Collateral. The Pledgor will, unless the Agent shall otherwise consent in writing: 
 (a) Keep adequate records
concerning the Collateral and permit the Agent or any agents or representatives thereof at any reasonable time and from time to time to examine and make copies of and abstracts from such records. 

(b) At the Pledgor’s expense, promptly deliver to the Agent a copy of each notice or other communication received by the Pledgor in
respect of the Collateral, together with a copy of any reply by the Pledgor thereto. 
 (c) At the Pledgor’s expense,
defend the Agent’s right, title and security interest in and to the Collateral against the claims of any person. 
 (d) At
the Pledgor’s expense, at any time and from time to time, promptly execute and deliver all further instruments and documents and take all further action that may be necessary or desirable or that the Agent may reasonably request in order to
(i) perfect and protect the security interest purported to be created hereby (whether pursuant to laws, rules, regulations or general practices currently in effect or adopted subsequent to the date hereof), (ii) enable the Agent to
exercise and enforce its rights and remedies hereunder in respect of the Collateral, or (iii) otherwise effect the purposes of this Agreement, including, without limitation, delivering to the Agent irrevocable proxies in respect of the
Collateral and executing 

  
 -4-

 
and filing such financing or continuation statements, or amendments thereto, as may be necessary or that the Agent may reasonably request in order to perfect and preserve the security interest
purported to be created hereby. 
 (e) Not sell, assign (by operation of law or otherwise), exchange or otherwise dispose of
any Collateral or any interest therein. 
 (f) Not create or suffer to exist any lien, security interest or other charge or
encumbrance upon or with respect to any Collateral except for the security interest created hereby and the security interest of the Bank. 
 (g) Not make or consent to any amendment or other modification or waiver with respect to any Collateral or enter into any agreement or permit to exist any restriction with respect to any Collateral other
than pursuant hereto. 
 (h) Not take any action which would in any manner impair the value or enforceability of the
Agent’s security interest in any Collateral. 
 SECTION 7. Withdrawal and Disposition of Collateral. 

(a) All Collateral (including, without limitation, all cash and investment property from time to time in the Account, and the proceeds
thereof), shall remain in the Account (except for withdrawals by the Agent in accordance with the terms of the Securities Purchase Agreement) and the Pledgor may not withdraw any part of the Collateral from the Account. 

(b) The Agent may make withdrawals of all or any part of the Collateral from the Account from time to time in accordance with the terms
of the Securities Purchase Agreement. 
 SECTION 8. Additional Provisions Concerning the Collateral. 

(a) The Pledgor hereby authorizes the Agent to file, without the signature of the Pledgor where permitted by law, one or more financing
or continuation statements, and amendments thereto, relating to the Collateral. 
 (b) The Pledgor hereby irrevocably appoints
the Agent the Pledgor’s attorney-in-fact and proxy, with full authority in the place and stead of the Pledgor and in the name of the Pledgor or otherwise, from time to time in the Agent’s discretion, to take any action and to execute any
instrument (at the expense of the Pledgor) which the Agent may reasonably deem necessary or advisable to accomplish the purposes of this Agreement, including, without limitation, at any time and from time to time, to register, or to direct that the
Bank register, all or any item of Collateral in the Agent’s own name or in the name of its nominee or designee, to receive, indorse and collect all instruments made payable to the Pledgor representing any distribution in respect of any
Collateral and to give full discharge for the same. 
 (c) If the Pledgor fails to perform any agreement or obligation
contained herein, the Agent may itself perform, or cause performance of, such agreement or 

  
 -5-

 
obligation, and the expenses of the Agent incurred in connection therewith shall be payable by the Pledgor pursuant to Section 10 hereof, together with interest from the date such expenses
are paid by the Agent until repaid in full, at the rate for overdue principal under the Initial Notes all payable on demand. The powers conferred on the Agent hereunder are solely to protect its interest in the Collateral and shall not impose any
duty upon it to exercise any such powers. 
 (d) Other than the exercise of reasonable care to assure the safe custody of the
Collateral while held by the Agent hereunder, the Agent shall have no duty or liability to preserve rights pertaining thereto and shall be relieved of all responsibility for the Collateral upon surrendering it or tendering surrender of it to the
Pledgor. The Agent shall be deemed to have exercised reasonable care in the custody and preservation of the Collateral in its possession if the Collateral is accorded treatment substantially equal to that which the Agent accords its own property, it
being understood that the Agent shall not have responsibility for (i) ascertaining or taking action with respect to calls, conversions, exchanges, maturities, tenders or other matters relating to any Collateral, whether or not the Agent has or
is deemed to have knowledge of such matters, or (ii) taking any necessary steps to preserve rights against any parties with respect to any Collateral. 
 SECTION 9. Remedies Upon Event of Default. If any Event of Default shall have occurred and be continuing: 
 (a) The Agent may exercise in respect of the Collateral, in addition to other rights and remedies provided for herein or otherwise available to it, all of the rights and remedies of a secured party on
default under the Code then in effect in the State of New York (whether or not the Code applies to the affected Collateral); and without limiting the generality of the foregoing and without notice except as specified below, sell the Collateral or
any part thereof in one or more parcels at public or private sale, at any exchange or broker’s board or elsewhere, at such price or prices and on such other terms as the Agent may deem commercially reasonable. In addition, the Agent may, at any
time and from time to time, upon the occurrence and during the continuance of an Event of Default, direct that the Bank immediately deliver to the Agent all or part of the Collateral. The Agent may apply all or part of the cash and/or other
investment property constituting Collateral to the payment of all or any part of the Obligations in such manner as the Agent may elect. The Pledgor agrees that, to the extent notice of sale shall be required by law, at least three
(3) days’ notice to the Pledgor of the time and place of any public sale or the time after which any private sale is to be made shall constitute reasonable notification. The Agent shall not be obligated to make any sale of Collateral
regardless of notice of sale having been given. The Agent may adjourn any public or private sale from time to time by announcement at the time and place fixed therefor, and such sale may, without further notice, be made at the time and place to
which it was so adjourned. 
 (b) The Pledgor agrees that in any sale of any Collateral hereunder the Agent is hereby
authorized to comply with any limitation or restriction in connection with such sale as it may be advised by counsel is necessary in order to avoid any violation of applicable law (including, without limitation, compliance with such procedures as
may restrict the number of prospective bidders and purchasers, require that such prospective bidders and purchasers have certain qualifications, and restrict such prospective bidders and purchasers to persons who will represent and agree that they
are purchasing for their own account for investment and not with a 

  
 -6-

 
view to the distribution or resale of such Collateral), or in order to obtain any required approval of the sale or of the purchasers by any governmental regulatory authority or official, and the
Pledgor further agrees that such compliance shall not result in such sale being considered or deemed not to have been made in a commercially reasonable manner, nor shall the Agent be liable or accountable to the Pledgor for any discount allowed by
reason of the fact that Collateral is sold in compliance with any such limitation or restriction. 
 (c) Any cash held by the
Agent as Collateral and all cash proceeds received by the Agent in respect of any sale of, collection from, or other realization upon, all or any part of the Collateral may, in the discretion of the Agent, be held by the Agent as collateral for,
and/or then or any time thereafter applied (after payment of any amounts payable to the Agent pursuant to Section 10 hereof) in whole or in part by the Agent against, all or any part of the Obligations in such order as the Agent shall elect.
Any surplus of such cash or cash proceeds held by the Agent and remaining after payment in full of all of the Obligations shall be paid over to whomsoever shall be lawfully entitled to receive the same or as a court of competent jurisdiction shall
direct. 
 (d) In the event that the proceeds of any such sale, collection or realization are insufficient to pay all amounts
to which the Agent is legally entitled, the Pledgor shall be liable for the deficiency, together with interest thereon at the highest rate specified in the Initial Notes for interest on overdue principal thereof or such lesser rate as shall be fixed
by applicable law, together with the costs of collection and the fees, disbursements and other client charges of any attorneys employed by the Agent to collect such deficiency. 

SECTION 10. Indemnity and Expenses. 
 (a) The Pledgor agrees to indemnify the Agent from and against any and all claims, losses and liabilities growing out of or resulting from this Agreement (including, without limitation, enforcement of
this Agreement and any obligations owed to the Bank), except claims, losses or liabilities resulting solely and directly from the Agent’s gross negligence or willful misconduct as determined by a final judgment of a court of competent
jurisdiction. 
 (b) The Pledgor agrees to pay to the Agent on demand the amount of any and all costs and expenses, including
the fees, disbursements and other client charges of the Agent’s counsel and of any experts and agents, which the Agent may incur in connection with (i) the administration, amendment, modification or termination of this Agreement,
(ii) the custody, preservation, use or operation of, or the sale of, collection from, or other realization upon, any Collateral, (iii) the exercise or enforcement of any of the rights of the Agent hereunder, or (iv) the failure by the
Pledgor to perform or observe any of the provisions hereof. 
 SECTION 11. Notices, Etc. All notices and other
communications provided for hereunder shall be given in accordance with the notice provisions in the Securities Purchase Agreement. 
 SECTION 12. Miscellaneous. 
 (a) No amendment of any provision of this
Agreement shall be effective unless it is in writing and signed by the Pledgor and the Agent, and no waiver of any 

  
 -7-

 
provision of this Agreement, and no consent to any departure by the Pledgor therefrom, shall be effective unless it is in writing and signed by the Agent, and then such waiver or consent shall be
effective only in the specific instance and for the specific purpose for which given. 
 (b) No failure on the part of the
Agent to exercise, and no delay in exercising, any right hereunder or under the other Transaction Documents shall operate as a waiver thereof; nor shall any single or partial exercise of any such right preclude any other or further exercise thereof
or the exercise of any other right. The rights and remedies of the Agent provided herein and in the other Transaction Documents are cumulative and are in addition to, and not exclusive of, any rights or remedies provided by law. The rights of the
Agent against the Pledgor are not conditional or contingent on any attempt by the Agent to exercise any of its rights under any other agreement, document or instrument against the Pledgor or against any other Person. 

(c) Any provision of this Agreement which is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be
ineffective to the extent of such prohibition or unenforceability without invalidating the remaining portions hereof or thereof or affecting the validity or enforceability of such provision in any other jurisdiction. 

(d) This Agreement shall create a continuing security interest in the Collateral and shall (i) remain in full force and effect
until the satisfaction in full of all Obligations after the Initial Notes have been returned to the Pledgor and (ii) be binding on the Pledgor and its successors, transferees and assigns and shall inure, together with all rights and remedies of
the Agent hereunder, to the benefit of the Agent and its successors, transferees and assigns. Without limiting the generality of clause (ii) of the immediately preceding sentence, the Agent may assign or otherwise transfer its interests
hereunder or under the other Transaction Documents, without notice to or consent of the Pledgor. None of the rights or obligations of the Pledgor hereunder may be assigned or otherwise transferred without the prior written consent of the Agent.

 (e) Upon the satisfaction in full of all Obligations after the Initial Notes have been returned to the Pledgor,
(i) this Agreement and the security interest created hereby shall terminate and all rights to the Collateral shall revert to the Pledgor, and (ii) the Agent will, upon the request of the Pledgor and at the Pledgor’s expense,
(A) return to the Pledgor such of the Collateral held by the Agent, and instruct the Bank to return to the Pledgor such of the Collateral held in the Account, as shall not have been sold or otherwise disposed of or applied pursuant to the terms
hereof and (B) execute and deliver to the Pledgor such documents as the Pledgor shall reasonably request to evidence such termination. 
 (f) This Agreement shall be governed by and construed in accordance with the law of the State of New York, except as required by mandatory provisions of law and except to the extent that the validity or
perfection and the effect of perfection or non-perfection of the security interest created hereby, or remedies hereunder, in respect of any particular Collateral are governed by the law of a jurisdiction other than the State of New York. 

(g) This Agreement may be executed in any number of counterparts and by different parties hereto in separate counterparts, each of which
shall be deemed to be an 

  
 -8-

 
original, but all of which taken together shall constitute one in the same agreement. Delivery of an executed counterpart of this Agreement by facsimile or electronic mail shall be equally
effective as delivery of an original executed counterpart. 
 [REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK] 

  
 -9-

  
 IN WITNESS WHEREOF,
the Pledgor has executed and delivered this Agreement on the date first above written. 
  

			
	 BIOVEST INTERNATIONAL, INC.

		
	By:	 	  

	Name:	 	
	Title:	 	

  
 ACCEPTED BY: 

 

			
	 EMPERY ASSET MASTER LTD,

	 as Agent

		
	By:	 	  

	Name:	 	
	Title:	 	

  
 -11-

  
 Exhibit C-2

 

 
 DEPOSIT ACCOUNT CONTROL AGREEMENT 

(Access Restricted Immediately) 
 This Deposit Account Control Agreement (the “Agreement”), dated as of the date specified on the initial signature page of this Agreement, is entered into by and among Biovest
International, Inc., a Delaware corporation (“Company”), Empery Asset Master Ltd., (“Secured Party”) and Wells Fargo Bank, National Association (“Bank”), and sets forth the rights
of Secured Party and the obligations of Bank with respect to the deposit accounts of Company at Bank identified at the end of this Agreement as the Collateral Accounts (each hereinafter referred to individually as a “Collateral
Account” and collectively as the “Collateral Accounts”). Each account designated as a Collateral Account includes, for purposes of this Agreement, and without the necessity of separately listing subaccount numbers, all
subaccounts presently existing or hereafter established for deposit reporting purposes and integrated with the Collateral Account by an arrangement in which deposits made through subaccounts are posted only to the Collateral Account. Each Collateral
Account operated as a “Multi-Currency Account” is a deposit account maintained with Bank’s Cayman Islands Branch, which may be denominated in foreign currency. 

 

	1.	Secured Party’s Interest in Collateral Accounts. Secured Party represents that it is either (i) a lender who has extended credit to Company and has
been granted a security interest in the Collateral Accounts or (ii) the agent for a group of such lenders. Company hereby confirms the security interest granted by Company to Secured Party in all of Company’s right, title and interest in
and to the Collateral Accounts and all sums now or hereafter on deposit in or payable or withdrawable from the Collateral Accounts (the “Collateral Account Funds”). In furtherance of the intentions of the parties hereto, this
Agreement constitutes written notice by Secured Party to Bank and Bank’s Cayman Islands Branch of Secured Party’s security interest in the Collateral Accounts. 

 

	2.	Secured Party Control. Bank, Secured Party and Company each agree that Bank will comply with instructions given to Bank by Secured Party directing disposition of
funds in the Collateral Accounts (“Disposition Instructions”) without further consent by Company. Except as otherwise required by law, Bank will not agree with any third party to comply with instructions for disposition of funds in
the Collateral Accounts originated by such third party. 

  

	3.	No Company Access to Collateral Accounts. Unless separately agreed to in writing by Secured Party, Company agrees that it will not be able to make debits or
withdrawals from or otherwise have access to the Collateral Accounts or any Collateral Account Funds, and that Secured Party will have exclusive access to the Collateral Accounts and Collateral Account Funds. 

 

	4.	 Transfers in Response to Disposition Instructions. Without limiting the provisions of the “Secured Party Control” section of this
Agreement, Bank shall comply with any Disposition Instructions by Secured Party directing the transfer or disposition of any or all available funds in the Collateral Accounts within two Business Days following receipt of such Disposition
Instructions by Bank. Any disposition of funds which Bank makes in response to any such Disposition Instructions is subject to Bank’s standard policies, procedures and documentation governing the type of disposition made; provided, however,
that in no circumstances will any such disposition require Company’s consent. To the extent any Collateral Account is a certificate of deposit or time deposit, Bank will be entitled to deduct any applicable early

	 	 
withdrawal penalty prior to disbursing funds from such account in response to Disposition Instructions. To the extent Secured Party requests that funds be transferred from any Collateral Account
in a currency different from the currency denomination of the Collateral Account, the funds transfer will be made after currency conversion at Bank’s then current buying rate for exchange applicable to the new currency. A “Business
Day” is any day on which Bank is open to conduct its regular banking business, other than a Saturday, Sunday or public holiday. 

  

	5.	Lockboxes. To the extent items deposited to a Collateral Account have been received in one or more post office lockboxes maintained for Company by Bank (each a
“Lockbox”) and processed by Bank for deposit, Company acknowledges that Company has granted Secured Party a security interest in all such items (the “Remittances”). During the term of this Agreement, Company will
have no right or ability to instruct Bank regarding the receipt, processing or deposit of Remittances, and Secured Party alone will have the right and ability to so instruct Bank. Company and Secured Party acknowledge and agree that Bank’s
operation of each Lockbox, and the receipt, retrieval, processing and deposit of Remittances, will at all times be governed by Bank’s Master Agreement for Treasury Management Services or other applicable treasury management services agreement,
and by Bank’s applicable standard lockbox Service Description. 

  

	6.	Balance Reports and Bank Statements. Bank agrees, at the request of Secured Party on any Business Day, to make available to Secured Party a report
(“Balance Report”) showing the opening available balance in the Collateral Accounts as of the beginning of such Business Day, by a transmission method determined by Bank, in Bank’s sole discretion. Company expressly consents to
this transmission of information. Bank shall provide duplicate copies of all periodic statements on the Collateral Accounts to Secured Party at the address indicated for Secured Party after its signature to this Agreement. 

 

	7.	Returned Items. Secured Party and Company understand and agree that the face amount (“Returned Item Amount”) of each Returned Item will be paid
by Bank debiting the Collateral Account to which the Returned Item was originally credited, without prior notice to Secured Party or Company. As used in this Agreement, the term “Returned Item” means (i) any item deposited to a
Collateral Account and returned unpaid, whether for insufficient funds or for any other reason, and without regard to timeliness of the return or the occurrence or timeliness of any drawee’s notice of non-payment; (ii) any item subject to
a claim against Bank of breach of transfer or presentment warranty under the Uniform Commercial Code (as adopted in the applicable state) or Regulation CC (12 C.F.R. §229), as in effect from time to time; (iii) any automated clearing house
(“ACH”) entry credited to a Collateral Account and returned unpaid or subject to an adjustment entry under applicable clearing house rules, whether for insufficient funds or for any other reason, and without regard to timeliness of
the return or adjustment; (iv) any credit to a Collateral Account from a merchant card transaction, against which a contractual demand for chargeback has been made; and (v) any credit to a Collateral Account made in error. Company agrees
to pay all Returned Item Amounts immediately on demand, without setoff or counterclaim, to the extent there are not sufficient funds in the applicable Collateral Account to cover the Returned Item Amounts on the day Bank attempts to debit them from
the Collateral Account. Secured Party agrees to pay all Returned Item Amounts within fifteen (15) calendar days after demand, without setoff or counterclaim, to the extent that (i) the Returned Item Amounts are not paid in full by Company
within five (5) calendar days after demand on Company by Bank, and (ii) Secured Party has received proceeds from the corresponding Returned Items under this Agreement. 

 

	8.	[Reserved.] 

  
 Page 2

  

	9.	Bank Fees. Company agrees to pay all Bank’s fees and charges for the maintenance and administration of the Collateral Accounts and for the treasury
management and other account services provided with respect to the Collateral Accounts and any Lockboxes (collectively “Bank Fees”), including, but not limited to, the fees for (a) Balance Reports provided on the Collateral
Accounts, (b) funds transfer services received with respect to the Collateral Accounts, (c) lockbox processing services, (d) Returned Items, (e) funds advanced to cover overdrafts in the Collateral Accounts (but without Bank
being in any way obligated to make any such advances), and (f) duplicate bank statements. The Bank Fees will be paid by Company within five (5) calendar days after demand from Bank. If Company fails to make such payments within such five
(5) calendar day period, Bank may debit one or more of the Collateral Accounts for such Bank Fees, without notice to Secured Party or Company. If there are not sufficient funds in the Collateral Accounts to cover fully the Bank Fees on the
Business Day Bank attempts to debit them from the Collateral Accounts, such shortfall or the amount of such Bank Fees will be paid by Secured Party within fifteen (15) calendar days after demand, without setoff or counterclaim.

  

	10.	Account Documentation. Except as specifically provided in this Agreement, Secured Party and Company agree that the Collateral Accounts will be subject to, and
Bank’s operation of the Collateral Accounts will be in accordance with, the terms of Bank’s applicable deposit account agreement governing the Collateral Accounts (“Account Agreement”). In addition to the Account
Agreement, each Collateral Account operated as a “Multi-Currency Account” will be governed by Bank’s Master Agreement for Treasury Management Services or other applicable treasury management services agreement, and by
Bank’s Multi-Currency Account Service Description in effect from time to time. All documentation referenced in this Agreement as governing any Collateral Account or the processing of any Remittances is hereinafter collectively referred to as
the “Account Documentation”. In the event of any conflict or inconsistency between the terms of any Account Documentation, on the one hand, and the terms of the Agreement, on the other hand, then the terms of this Agreement shall
govern and control. 

  

	11.	Partial Subordination of Bank’s Rights. Bank hereby subordinates to the security interest of Secured Party in the Collateral Accounts (i) any security
interest which Bank may have or acquire in the Collateral Accounts, and (ii) any right which Bank may have or acquire to set off or otherwise apply any Collateral Account Funds against the payment of any indebtedness from time to time owing to
Bank from Company, except for debits to the Collateral Accounts permitted under this Agreement for the payment of Returned Item Amounts or Bank Fees. 

  

	12.	[Reserved.] 

  

	13.	Legal Process, Legal Notices and Court Orders. Bank will comply with any legal process, legal notice or court order it receives in relation to a Collateral
Account if Bank determines in its sole discretion that the legal process, legal notice or court order is legally binding on it. 

  

	14.	 Indemnification. Company will indemnify, defend and hold harmless Bank, its officers, directors, employees, and agents (collectively, the
“Indemnified Parties”) from and against any and all claims, demands, losses, liabilities, damages, costs and expenses (including reasonable attorneys’ fees) (collectively “Losses and Liabilities”) Bank may
suffer or incur as a result of or in connection with (a) Bank complying with any binding legal process, legal notice or court order referred to in the immediately preceding section of this Agreement, (b) Bank following any instruction or
request of Secured Party, including but not limited to any Disposition Instructions, or (c) Bank complying with its obligations under this Agreement, except to the extent such Losses and Liabilities are caused by Bank’s gross negligence or
willful misconduct. To the extent such obligations of indemnity are not satisfied by Company within five (5) days after demand on Company by Bank, Secured Party will indemnify, defend and hold harmless Bank

  
 Page 3

	 	 
and the other Indemnified Parties against any and all Losses and Liabilities Bank may suffer or incur as a result of or in connection with Bank following any instruction or request of Secured
Party, except to the extent such Losses and Liabilities are caused by Bank’s gross negligence or willful misconduct. 

  

	15.	Bank’s Responsibility. This Agreement does not create any obligations of Bank, and Bank makes no express or implied representations or warranties with
respect to its obligations under this Agreement, except for those expressly set forth herein. In particular, Bank need not investigate whether Secured Party is entitled under Secured Party’s agreements with Company to give Disposition
Instructions. Bank may rely on any and all notices and communications it believes are given by the appropriate party. Bank will not be liable to Company, Secured Party or any other party for any Losses and Liabilities caused by
(i) circumstances beyond Bank’s reasonable control (including, without limitation, computer malfunctions, interruptions of communication facilities, labor difficulties, acts of God, wars, or terrorist attacks) or (ii) any other
circumstances, except to the extent such Losses and Liabilities are directly caused by Bank’s gross negligence or willful misconduct. In no event will Bank be liable for any indirect, special, consequential or punitive damages, whether or not
the likelihood of such damages was known to Bank, and regardless of the form of the claim or action, or the legal theory on which it is based. Any action against Bank by Company or Secured Party under or related to this Agreement must be brought
within twelve (12) months after the cause of action accrues. 

  

	16.	Termination. This Agreement may be terminated by Secured Party or Bank at any time by either of them giving thirty (30) calendar days prior written notice
of such termination to the other parties to this Agreement at their contact addresses specified after their signatures to this Agreement; provided, however, that this Agreement may be terminated immediately upon written notice (i) from Bank to
Company and Secured Party should Company or Secured Party fail to make any payment when due to Bank from Company or Secured Party under the terms of this Agreement, or (ii) from Secured Party to Bank on termination or release of Secured
Party’s security interest in the Collateral Accounts; provided that any notice from Secured Party under clause (ii) of this sentence must contain Secured Party’s acknowledgement of the termination or release of its security interest
in the Collateral Accounts. Company’s and Secured Party’s respective obligations to report errors in funds transfers and bank statements and to pay Returned Items Amounts and Bank Fees, as well as the indemnifications made, and the
limitations on the liability of Bank accepted, by Company and Secured Party under this Agreement will continue after the termination of this Agreement with respect to all the circumstances to which they are applicable, existing or occurring before
such termination, and any liability of any party to this Agreement, as determined under the provisions of this Agreement, with respect to acts or omissions of such party prior to such termination will also survive such termination. Upon any
termination of this Agreement, (i) Bank will transfer all collected and available balances in the Collateral Accounts on the date of such termination in accordance with Secured Party’s written instructions, and (ii) Bank will close
any Lockbox and forward any mail received at the Lockbox unopened to such address as is communicated to Bank by Secured Party under the notice provisions of this Agreement for a period of three (3) months after the effective termination date,
unless otherwise arranged between Secured Party and Bank, provided that Bank’s fees with respect to such disposition must be prepaid directly to Bank at the time of termination by cashier’s check payable to Bank or other payment method
acceptable to Bank in its sole discretion. 

  
 Page 4

  

	17.	Modifications, Amendments, and Waivers. This Agreement may not be modified or amended, or any provision thereof waived, except in a writing signed by all the
parties to this Agreement. 

  

	18.	Notices. All notices from one party to another must be in writing, must be delivered to Company, Secured Party and/or Bank at their contact addresses specified
after their signatures to this Agreement, or any other address of any party communicated to the other parties in writing, and will be effective on receipt. Any notice sent by a party to this Agreement to another party must also be sent to all other
parties to this Agreement. Bank is authorized by Company and Secured Party to act on any instructions or notices received by Bank if (a) such instructions or notices purport to be made in the name of Secured Party, (b) Bank reasonably
believes that they are so made, and (c) they do not conflict with the terms of this Agreement as such terms may be amended from time to time, unless such conflicting instructions or notices are supported by a court order.

  

	19.	Successors and Assigns. Neither Company nor Secured Party may assign or transfer its rights or obligations under this Agreement to any person or entity without
the prior written consent of Bank, which consent will not be unreasonably withheld or delayed. Notwithstanding the foregoing, Secured Party may transfer its rights and duties under this Agreement to (i) a transferee to which, by contract or
operation of law, Secured Party transfers substantially all of its rights and duties under the financing or other arrangements between Secured Party and Company, or (ii) if Secured Party is acting as a representative in whose favor a security
interest is created or provided for, a transferee that is a successor representative; provided that as between Bank and Secured Party, Secured Party will not be released from its obligations under this Agreement unless and until Bank receives any
such transferee’s binding written agreement to assume all of Secured Party’s obligations hereunder. Bank may not assign or transfer its rights or obligations under this Agreement to any person or entity without the prior written consent of
Secured Party, which consent will not be unreasonably withheld or delayed; provided, however, that no such consent will be required if such assignment or transfer takes place as part of a merger, acquisition or corporate reorganization affecting
Bank. 

  

	20.	Governing Law. This Agreement will be governed by and be construed in accordance with the laws of the state in which the office of Bank that maintains the
Collateral Accounts is located, without regard to conflict of laws principles. This state will also be deemed to be Bank’s jurisdiction, for purposes of Article 9 of the Uniform Commercial Code as it applies to this Agreement.

  

	21.	Severability. To the extent that the terms of this Agreement are inconsistent with, or prohibited or unenforceable under, any applicable law or regulation, they
will be deemed ineffective only to the extent of such prohibition or unenforceability, and will be deemed modified and applied in a manner consistent with such law or regulation. Any provision of this Agreement which is deemed unenforceable or
invalid in any jurisdiction will not affect the enforceability or validity of the remaining provisions of this Agreement or the same provision in any other jurisdiction. 

 

	22.	Counterparts. This Agreement may be executed in any number of counterparts each of which will be an original with the same effect as if the signatures were on
the same instrument. Delivery of an executed counterpart of a signature page of this Agreement by telecopier or electronic image scan transmission (such as a “pdf” file) will be effective as delivery of a manually executed counterpart of
the Agreement. 

  
 Page 5

  

	23.	Entire Agreement. This Agreement, together with the Account Documentation, contains the entire and only agreement among all the parties to this Agreement and
between Bank and Company, on the one hand, and Bank and Secured Party, on the other hand, with respect to (a) the interest of Secured Party in the Collateral Accounts and Collateral Account Funds, and (b) Bank’s obligations to Secured
Party in connection with the Collateral Accounts and Collateral Account Funds. 

 [SIGNATURE PAGES FOLLOW]

  
 Page 6

  
 This Agreement has been signed by the
duly authorized officers or representatives of Company, Secured Party and Bank on the date specified below. 
 Date:
            , 2010 
  

					
	Collateral Account Numbers:	 		 	  

			
	BIOVEST INTERNATIONAL, INC.	 		 	EMPERY ASSET MASTER LTD.
			
		 		 	 By: EMPERY ASSET MANAGEMENT, LP, its
 Authorized Agent

			
	 By:
  
	 		 	 By: EMPERY AM GP, LLC, its General
 Partner

			
	 Name:
	 		 	 By:

			
	 Title:
	 		 	 Name: Ryan M. Lane

			
		 		 	 Title: Managing Member

			
	Address for Notices:	 		 	Address for Notices:
			
	 324 S. Hyde Park Avenue
	 		 	 120 Broadway

			
	 Suite 350
	 		 	 Suite 1019

			
	 Tampa, Florida 33606
	 		 	 New York, New York 10271

			
	 Attn: Alan Pearce
	 		 	 Attn: Ryan Lane

			
	 Fax: 813.258.6912
	 		 	 Fax: 212.608.3307

[SIGNATURE PAGES CONTINUE] 

  
 Page 7

  

			
	 WELLS FARGO BANK, NATIONAL
 ASSOCIATION

	
	 By:

	
	 Name:

	
	 Title:

	
	Address for Notices:
	
	 Wells Fargo Bank, National Association

	
	 c/o Wachovia Bank

	
	 Mail Address Code: D1129-072

	
	 301 South Tryon Street, 7th Floor

	
	 Charlotte, North Carolina 28282-1915

	
	 Attn: TM Legal Risk Mgmt- DACA Team

	
	 Fax: 704.374.4224 

	
	         with copy to:

	
	 Wells Fargo Bank, National Association

	
	 Mail Address Code: Z0307-102

	
	 100 S. Ashley Drive, 10th Floor

	
	 Tampa, Florida 33602

	
	 Attn: Valerie DiGennaro

	
	 Fax: 813.225.4330

  
 Page 8

  
 Exhibit D

 TRANSFER AGENT INSTRUCTIONS 
 BIOVEST INTERNATIONAL, INC. 

                , 2010 

StockTrans, Inc. 
 [Address] 

Telephone: [                ] 

Facsimile: [                ] 

Attention: [                ] 

Ladies and Gentlemen: 

Reference is made to that certain Securities Purchase Agreement, dated as of October     , 2010 (the
“Agreement”), by and among Biovest International, Inc., a Delaware corporation (the “Company”), and the investors named on the Schedule of Buyers attached thereto (collectively, the “Holders”),
pursuant to which the Company is issuing to the Holders senior secured convertible notes (the “Initial Notes”), which are convertible into shares of the common stock of the Company, par value $0.01 per share (the “Common
Stock”), and warrants (the “Initial Warrants”), which are exercisable into shares of Common Stock. 

On November 10, 2008, (the “Petition Date”), Accentia Biopharmaceuticals, Inc. (“Accentia”) and
its Subsidiaries, the Company, Analytica International, Inc., TEAMM Pharmaceuticals, Inc., AccentRx, Inc., Accentia Specialty Pharmacy, Inc., Biovax, Inc., AutovaxID, Inc., Biolender, LLC and Biolender II, LLC (hereinafter collectively referred to
as the “Debtors”) filed voluntary petitions (the “Chapter 11 Cases”) for relief under Chapter 11 of Title 11 of the United States Code, 11 U.S.C. §§ 101-1330 (as amended, the “Bankruptcy
Code”), with the United States Bankruptcy Court for the Middle District of Florida (Tampa Division) (the “Bankruptcy Court”). On the effective date (the “Effective Date”) of the Company’s Chapter 11
Plan of Reorganization (as amended, modified or supplemented in accordance with its terms, the Bankruptcy Code or the Federal Bankruptcy Procedure and local rules, the “Plan”), (i) the Initial Notes shall be mandatorily
exchangeable and exchanged by each Holder for an aggregate principal amount of new convertible notes (the “Exchange Notes”) equal to the aggregate principal amount of Initial Notes being exchanged by each such holder thereof plus
accrued but unpaid interest thereon and (ii) the Initial Warrants shall be mandatorily exchangeable and exchanged by each Holder for new warrants (the “Exchange Warrants”), representing the right to acquire the same number of
shares of Common Stock as the unexercised Initial Warrants. 
 Upon the exchange of (i) the Initial Notes for the Exchange
Notes and (ii) the Initial Warrants for the Exchange Warrants, the Exchange Notes and the Exchange Warrants will be issued pursuant to Section 1145 of the Bankruptcy Code and upon the issuance of the shares of Common Stock issuable upon
conversion of the Exchange Notes (the “Conversion Shares”) and exercise of the Exchange Warrants (the “Warrant Shares”), such shares will be freely transferable without any restrictions or limitations and without
the requirement to be registered under the Securities Act of 1933, as amended (the “Securities Act”). 

  
 This letter shall
serve as our irrevocable authorization and direction to you (provided that you are the transfer agent of the Company at such time): 
 (i) to issue Conversion Shares to or upon the order of a Holder from time to time upon delivery to you of a properly completed and duly executed Conversion Notice, in the form attached hereto as
Exhibit I, which has been acknowledged by the Company as indicated by the signature of a duly authorized officer of the Company thereon; and 
 (ii) to issue Warrant Shares to or upon the order of a Holder from time to time upon delivery to you of a properly completed and duly executed Exercise Notice, in the form attached hereto as
Exhibit II, which has been acknowledged by the Company as indicated by the signature of a duly authorized officer of the Company thereon. 
 You acknowledge and agree that, within three (3) business days after your receipt of a notice of transfer, Conversion Notice or Exercise Notice, you shall issue the Conversion Shares and/or the
Warrant Shares, as applicable, so long as you are participating in The Depository Trust Company (“DTC”) Fast Automated Securities Transfer Program, by crediting the aggregate number of Conversion Shares and/or Warrant Shares to the
applicable Holder’s or its designee’s balance account with DTC through its Deposit/Withdrawal at Custodian system, or, if you are not participating in the DTC Fast Automated Securities Transfer Program, issue the Conversion Shares and/or
Warrant Shares, as applicable, registered in the names of such transferee or the Holder, as applicable, and such certificates shall not bear any legend restricting the transfer of the Conversion Shares and/or the Warrant Shares and shall not be
subject to any stop-transfer restriction. 
 Please execute this letter in the space indicated to acknowledge your
agreement to act in accordance with these instructions. Should you have any questions concerning this matter, please contact me at                 . 

 

			
	 Very truly yours,

	
	 BIOVEST INTERNATIONAL, INC.

		
	By:	 	  

		 	Name:
		 	Title:

   
 
 
					
	THE FOREGOING INSTRUCTIONS ARE
	ACKNOWLEDGED AND AGREED TO
	
	this      day of             , 2010
	
	STOCKTRANS, INC.
		
	By:	 	  

		 	Name:	 	  

		 	Title:	 	  

  
 Enclosures 

cc: [Buyers] 

  
 EXHIBIT I

 BIOVEST INTERNATIONAL, INC. 
 CONVERSION NOTICE 
 Reference is made to the Convertible Note (the “Note”)
issued to the undersigned by Biovest International, Inc., a Delaware corporation (the “Company”). In accordance with and pursuant to the Note, the undersigned hereby elects to convert the Conversion Amount (as defined in the Note)
of the Note indicated below into shares of Common Stock par value par value $0.01 per share (the “Common Stock”) of the Company, as of the date specified below. 

 

			
	 Date of Conversion:
	 	  

			
		
	 Aggregate Conversion Amount to be converted:
	 	  

	
	
	Please confirm the following information:

			
		
	 Conversion Price:
	 	  

			
		
	 Number of shares of Common Stock to be issued:
	 	  

	
	
	Please issue the Common Stock into which the Note is being converted in the following name and to the following
address:

			
		
	 Issue to:
	 	  

		
		 	  

		
		 	  

			
		
	 Facsimile Number:
	 	  

			
		
	 Authorization:
	 	  

			
		
	 By:
	 	  

			
		
	 Title:
	 	  

			
		
	Dated:	 	  

			
		
	 Account Number:
	 	  

	     (if electronic book entry transfer)

			
		
	 Transaction Code Number:
	 	  

	     (if electronic book entry transfer)

  
 ACKNOWLEDGMENT

 The Company hereby acknowledges this Conversion Notice and hereby directs StockTrans, Inc. to issue the above indicated
number of shares of Common Stock in accordance with the Transfer Agent Instructions dated                 , 2010 from the Company and acknowledged and agreed to
by StockTrans, Inc. 
  

			
	 BIOVEST INTERNATIONAL, INC.

		
	By:	 	  

		 	Name:
		 	Title:

  
 EXHIBIT II

 EXERCISE NOTICE 
 TO BE EXECUTED BY THE REGISTERED HOLDER TO EXERCISE THIS 
 WARRANT TO
PURCHASE COMMON STOCK 
 BIOVEST INTERNATIONAL, INC. 

The undersigned holder hereby exercises the right to purchase
                 of the Common Stock (“Warrant Shares”) of Biovest International, Inc., a company incorporated under the laws of Delaware (the
“Company”), evidenced by the attached Warrant to Purchase Common Stock (the “Warrant”). Capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in the Warrant.

 1. Form of Exercise Price. The Holder intends that payment of the Exercise Price shall be made as: 

                 a “Cash
Exercise” with respect to                  Warrant Shares; and/or 
                  a “Cashless Exercise” with respect to
                 Warrant Shares. 
 2.
Payment of Exercise Price. In the event that the holder has elected a Cash Exercise with respect to some or all of the Warrant Shares to be issued pursuant hereto, the holder shall pay the Aggregate Exercise Price in the sum of
$             to the Company in accordance with the terms of the Warrant. 
 3. Delivery of Warrant Shares. The Company shall deliver to the holder                  Warrant Shares in accordance
with the terms of the Warrant. 
 4. The undersigned holder hereby represents and warrants that after giving effect to the
exercise of the Warrant contemplated by this Exercise Notice, such holder will not be in violation of the beneficial ownership limits specified in Section 1(f) of the Warrant, as increased or decreased pursuant to terms contained therein.

 5. Is the Variable Price being relied on pursuant to Section 2.1(d) of the Warrant? (check one) YES
             NO              
 Date:
                                        
     ,              
 Account Number:
                                         
                
 (if electronic book entry
transfer) 
 Transaction Code Number:
                                        

 (if electronic book entry transfer) 

  

			
	  

	Name of Registered Holder
	
	  

	Name:	 	
	Title:	 	

  
 ACKNOWLEDGMENT

 The Company hereby acknowledges this Exercise Notice and hereby directs StockTrans, Inc. to issue the above indicated
number of shares of Common Stock in accordance with the Transfer Agent Instructions dated October [    ], 2010 from the Company and acknowledged and agreed to by StockTrans, Inc. 

 

			
	BIOVEST INTERNATIONAL, INC.
		
	By:	 	  

		 	Name:
		 	Title:

  
 Exhibit E-1

 Ladies and Gentlemen: 
 We are of the opinion that: 
 1. Based solely on the Government Certificates, the
Company is a corporation duly incorporated, validly existing and in good standing under the laws of the State of Delaware, and the Company has all requisite corporate power and authority to own, lease and operate its properties and to conduct its
business as presently conducted. 
 2. Subject to the Transaction Approval Order, the Company has the requisite corporate power
and authority to execute, deliver and perform all of its obligations under the Transaction Documents, including, without limitation, (a) the issuance of the Notes and Warrants pursuant to the Purchase Agreement, the Conversion Shares pursuant
to the Notes, and the Warrant Shares pursuant to the Warrants, (b) the exchange of the Initial Notes for the Exchange Notes and (c) the exchange of the Initial Warrants for the Exchange Warrants, in accordance with the terms thereof. The
execution and delivery of the Transaction Documents by the Company and the consummation by it of the transactions contemplated therein (including, without limitation, the issuance and sale of the Initial Notes and the Initial Warrants to the Buyers
and the exchange of the Initial Warrants for the Exchange Warrants) have been duly authorized by the Company’s Board of Directors and, subject to the Transaction Approval Order, no further consent or authorization of the Company, its Board of
Directors or its stockholders is required therefor. Each of the Transaction Documents has been duly executed and delivered by the Company. Each of the Transaction Documents constitutes a valid and binding obligation of the Company enforceable
against the Company in accordance with its terms. 
 3. Subject to the Transaction Approval Order, Accentia has the corporate
power, capacity and authority under the Florida Business Corporation Act (the “FBCA”) to enter into the Lock-Up Agreement to which it is a party. The execution and delivery by Accentia of the Lock-Up Agreement to which Accentia is a
party and the consummation by it of the transactions contemplated therein have been duly authorized by Accentia’s Board of Directors and, subject to the Transaction Approval Order, no further consent of Accentia, its Board of Directors or its
shareholder is required under the FCBA. The Lock-Up Agreement to which Accentia is a party has been duly executed and delivered by Accentia and constitutes a valid and binding agreement or obligation of Accentia, enforceable against Accentia in
accordance with its terms 
 4. The execution, delivery and performance of the Transaction Documents by the Company and the
consummation by the Company of the transactions contemplated thereby, including, without limitation, the issuance of the Securities, the exchange of the Initial Notes for the Exchange Notes and the exchange of the Initial Warrants for the Exchange
Warrants, and the compliance by the Company with the terms thereof (a) do not and will not result in a violation of, or constitute a default (or an event which, with the giving of notice or lapse of time or both, constitutes or would constitute
a default) under, or give rise to any right of termination, cancellation or acceleration under, (i) the Company Certificate of Incorporation or the By-Laws, or (ii) any provision of the Delaware General Corporation Law, the Securities Act,
and the Florida Securities and Investor Protection Act (the “Florida Securities Act”), in each case as are customarily applicable to transactions of this nature, and (b) do not and will not result in or require the creation of
any lien, security interest or other charge or encumbrance (other than pursuant to the Transaction Documents) upon or with respect to any of its respective properties pursuant to the Company Certificate of Incorporation or Company By-Laws.

  
 5. When so issued, the
Securities will be duly authorized and validly issued, fully paid and nonassessable, and free of any and all liens and charges and preemptive or similar rights contained in the Company Certificate of Incorporation or the Company By-Laws. The Company
has duly and validly adopted a resolution reserving [        ] shares of Common Stock for issuance upon the conversion of the Exchange Notes and the exercise of the Exchange Warrants. 

6. As of the date hereof, the authorized capital stock of the Company consists of 300,000,000 shares of Common Stock, par value $0.01 per
share. None of the Company’s capital stock is subject to preemptive rights or other rights of the stockholders of the Company pursuant to the Company Certificate of Incorporation or the Company By-Laws or under the Delaware General Corporation
Law. 
 7. Subject to the accuracy of the Buyers’ representations in Section 2 of the Purchase Agreement, the offer
and sale of the Initial Notes and the Initial Warrants in accordance with the Purchase Agreement and the issuance and delivery of the Initial Conversion Shares and the Initial Warrant Shares in accordance with the Transaction Documents constitute
transactions exempt from the registration requirements of the Securities Act. 
 8. Except for the Transaction Approval Order,
no authorization, approval, consent, filing or other order of any federal or state governmental body, regulatory agency, self-regulatory organization or the stockholders of the Company is required under the Delaware General Corporation Law, the
Securities Act or the Florida Securities Act to be obtained by the Company to enter into and perform its obligations under the Transaction Documents to which it is a party, or for the issuance and sale of the Securities, the exchange of the Initial
Notes for the Exchange Notes or the exchange of the Initial Warrants for the Exchange Warrants in accordance with the Transaction Documents or for the exercise of any rights and remedies under any Transaction Documents, except (i) the filing of
a Form D under Regulation D of the Securities Act, (ii) the filing of a Form 8-K pursuant to the Securities Exchange Act of 1934, as amended and (iii) any action necessary in order to qualify the Securities under applicable state
securities or “Blue Sky” laws of the states of the United States. 
 9. Other than the Chapter 11 Cases and except as
set forth in Schedule 3(t) to the Purchase Agreement, to our knowledge, no action, suit, proceeding, inquiry or investigation before or by any court, public board or body or any governmental agency or self-regulatory organization is pending or
threatened against the Company or any of its properties or assets. 
 10. Based solely on factual representations made by the
Company to us, the Company is not an “investment company” or any entity controlled by an “investment company,” as such term is defined in the Investment Company Act of 1940, as amended. 

11. The sale of the Initial Notes, the use of the proceeds thereof and the other transactions contemplated thereby or by the other
Transaction Documents, will not violate or be inconsistent with the provisions of Regulation T, U or X of the Board of Governors of the Federal Reserve System of the United States. 

12. The Security Agreement is effective to create in favor of the Collateral Agent, for the benefit of the Buyers, as security for the
payment of the obligations purported to be secured thereby, a valid security interest (the “Security Interest”) in the right, title and interest of the Company in and to that portion of the Collateral in which a security interest
may be created under Article 9 of the New York UCC. 
 13. Assuming that the depository bank party to the Account Control
Agreement is a “bank” (as such term is defined in the New York UCC) and that the Account covered by (and as defined 

  
 2 

 
in) the Account Control Agreement is a Deposit Account (as such term is defined in the New York UCC) and is and remains in the continued exclusive control of such depository bank party, the
Security Interest referred to in paragraph 12 above in the portion of the Collateral consisting of the Account and any funds held therein pursuant to the Security Agreement and the Account Control Agreement will perfect by “control”
(within the meaning of Section 9-104 of the New York UCC) as a result of the execution and delivery of the Account Control Agreement by the parties thereto. 

  
 3 

  
 Exhibit E-2

 Ladies and Gentlemen: 
 We are of the opinion that: 
 1. Based solely on the Government Certificate, the
Company is a corporation duly incorporated, validly existing and in good standing under the laws of the State of Delaware, and the Company has all requisite corporate power and authority to own, lease and operate its properties and to conduct its
business as presently conducted. 
 2. When so issued in accordance with the terms and conditions of the Purchase Agreement, the
Exchange Notes, the Exchange Conversion Shares, the Exchange Warrants and the Exchange Warrant Shares will be duly authorized and validly issued, fully paid and nonassessable, and free of any and all liens and charges and preemptive or similar
rights contained in the Certificate of Incorporation or the By-Laws. The Company has duly and validly adopted a resolution reserving [        ] shares of Common Stock for issuance upon the conversion of the
Exchange Notes and the exercise of the Exchange Warrants. 
 3. Other than the Chapter 11 Cases and except as set forth in
Schedule 3(t) to the Purchase Agreement, to our knowledge, no action, suit, proceeding, inquiry or investigation before or by any court, public board or body or any governmental agency or self-regulatory organization is pending or threatened against
the Company or any of its properties or assets. 
 4. Based solely on factual representations made by the Company to us, the
Company is not an “investment company” or any entity controlled by an “investment company,” as such term is defined in the Investment Company Act of 1940, as amended. 

5. The sale of the Exchange Notes, the use of the proceeds thereof and the other transactions contemplated thereby or by the other
Transaction Documents, will not violate or be inconsistent with the provisions of Regulation T, U or X of the Board of Governors of the Federal Reserve System of the United States. 

  
 Exhibit F

 BIOVEST INTERNATIONAL, INC. 
 SECRETARY’S CERTIFICATE 
 The undersigned hereby certifies that
he is the duly elected, qualified and acting Secretary of Biovest International, Inc., a Delaware corporation (the “Company”), and that as such he is authorized to execute and deliver this certificate in the name and on behalf of
the Company and in connection with the Securities Purchase Agreement, dated as of October 19, 2010, by and among the Company and the investors listed on the Schedule of Buyers attached thereto (the “Securities Purchase
Agreement”), and further certifies in his official capacity, in the name and on behalf of the Company, the items set forth below. Capitalized terms used but not otherwise defined herein shall have the meaning set forth in the Securities
Purchase Agreement. 
  

	1.	Attached hereto as Exhibit A is a true, correct and complete copy of the unanimous written consent of the Board of Directors of the Company, dated October __,
2010. The resolutions contained in Exhibit A have not in any way been amended, modified, revoked or rescinded, have been in full force and effect since their adoption to and including the date hereof and are now in full force and effect.

  

	2.	Attached hereto as Exhibit B is a true, correct and complete copy of the Certificate of Incorporation of the Company, together with any and all amendments
thereto, and no action has been taken to further amend, modify or repeal such Certificate of Incorporation, the same being in full force and effect in the attached form as of the date hereof. 

 

	3.	Attached hereto as Exhibit C is a true, correct and complete copy of the Bylaws of the Company and any and all amendments thereto, and no action has been taken
to further amend, modify or repeal such Bylaws, the same being in full force and effect in the attached form as of the date hereof. 

  

	4.	Each person listed below has been duly elected or appointed to the position(s) indicated opposite his name and is duly authorized to sign the Securities Purchase
Agreement and each of the Transaction Documents on behalf of the Company, and the signature appearing opposite such person’s name below is such person’s genuine signature. 

 

					
	 Name
	  	 Position
	  	 Signature

			
	Francis E. O’Donnell, Jr.	  	Chairman of the Board and Chief Executive Officer	  	  

			
	Samuel S. Duffey	  	President and General Counsel	  	  

			
	David Moser	  	Secretary and Director of Legal Affairs	  	  

  
 IN WITNESS WHEREOF,
the undersigned has hereunto set his hand as of this      day of                 , 2010. 

 

	
	  

	[Name]
	Secretary

 I, Francis E.
O’Donnell, Jr., Chairman of the Board and Chief Executive Officer, hereby certify that [Name] is the duly elected, qualified and acting Secretary of the Company and that the signature set forth above is his true signature. 

 

	
	  

	Francis E. O’Donnell, Jr.
	Chairman of the Board and Chief Executive Officer

  
 EXHIBIT A

 Resolutions 

  
 EXHIBIT B

 Certificate of Incorporation 

  
 EXHIBIT C

 Bylaws 

  
 Exhibit G

 BIOVEST INTERNATIONAL, INC. 
 OFFICER’S CERTIFICATE 
 The undersigned Chief Executive Officer
of Biovest International, Inc., a Delaware corporation (the “Company”), hereby represents, warrants and certifies to the Buyers (as defined below), pursuant to Section 7(viii) of the Agreement (as defined below), as follows:

  

	 	1.	The representations and warranties made by the Company set forth in Section 3 of the Securities Purchase Agreement, dated as of October 19, 2010 (the
“Agreement”), among the Company and the investors identified on the Schedule of Buyers attached to the Agreement (the “Buyers”), are true and correct as of the date hereof (except for representations and warranties
that speak as of a specific date, which shall be true and correct as of such specified date). 

  

	 	2.	The Company has performed, satisfied or complied with all covenants, agreements and conditions required to be performed, satisfied or complied with by it under the
Transaction Documents at or prior to the date hereof. 

 Capitalized terms used but not otherwise defined herein shall have the
meaning set forth in the Agreement. 
 IN WITNESS WHEREOF, the undersigned has executed this certificate this
     day of                 , 2010. 

 

			
	  

	Name:	 	Samuel S. Duffey
	Title:	 	President/General Counsel

  
 Exhibit H

 BIOVEST INTERNATIONAL, INC. 
 Form of Lock-Up Agreement 
 October     , 2010

 Biovest International, Inc. 
 324
South Hyde Park Avenue, Suite 350 
 Tampa, Florida 33606 
 Re: Biovest International, Inc. – Lock-Up Agreement 
 Dear Sirs: 

This Lock-Up Agreement is being delivered to you in connection with the Securities Purchase Agreement (the “Purchase
Agreement”), dated as of October 19, 2010 by and among Biovest International, Inc. (the “Company”) and the investors party thereto (the “Buyers”), with respect to the issuance of (i) secured
convertible notes of the Company (the “Notes”) which Notes shall be convertible into the Company’s common stock, par value $0.01 per share (the “Common Stock”) and (ii) warrants (the
“Warrants”) which Warrants will be exercisable to purchase Common Stock. Capitalized terms used herein and not otherwise defined herein shall have the respective meanings set forth in the Purchase Agreement. 

In order to induce the Buyers to enter into the Purchase Agreement, the undersigned agrees that, commencing on the date hereof and ending
on the date that is 90 days following the Effective Date (as defined in the Purchase Agreement) (the “Lock-Up Period”), the undersigned will not, and will cause all “affiliates” (as defined in Rule 144 of the Securities
Act of 1933, as amended, and the rules and regulations of the Securities and Exchange Commission promulgated thereunder) of the undersigned or any person in privity with and acting on behalf of the undersigned or any affiliate of the undersigned not
to, (i) sell, offer to sell, contract or agree to sell, hypothecate, pledge, grant any option to purchase, make any short sale or otherwise dispose of or agree to dispose of, directly or indirectly, any shares of Common Stock or Common Stock
Equivalents, or establish or increase a put equivalent position or liquidate or decrease a call equivalent position within the meaning of Section 16 of the Securities and Exchange Act of 1934, as amended, and the rules and regulations of the
Securities and Exchange Commission promulgated thereunder with respect to any shares of Common Stock or Common Stock Equivalents owned directly by the undersigned (including holding as a custodian) or with respect to which the undersigned has
beneficial ownership within the rules and regulations of the Securities and Exchange Commission (collectively, the “Undersigned’s Shares”), (ii) enter into any swap or other arrangement that transfers to another, in whole
or in part, any of the economic consequences of ownership of any of the Undersigned’s Shares, whether any such transaction described in clause (i) or (ii) above is to be settled by delivery of shares of Common Stock or other
securities, in cash or otherwise, (iii) make any demand 

 
for or exercise any right or cause to be filed a registration statement, including any amendments thereto, with respect to the registration of any shares of Common Stock or Common Stock
Equivalents or (iv) publicly disclose the intention to do any of the foregoing. Notwithstanding the foregoing, if the transactions contemplated by the Purchase Agreement are not consummated by the Effective Date, this Lock-Up Agreement shall
terminate. 
 The foregoing restriction is expressly agreed to preclude the undersigned, and any affiliate of the undersigned
and any person in privity with and acting on behalf of the undersigned or any affiliate of the undersigned, from engaging in any hedging or other transaction which is designed to or which reasonably could be expected to lead to or result in a sale
or disposition of the Undersigned’s Shares even if the Undersigned’s Shares would be disposed of by someone other than the undersigned. Such prohibited hedging or other transactions would include, without limitation, any short sale or any
purchase, sale or grant of any right (including, without limitation, any put or call option) with respect to any of the Undersigned’s Shares or with respect to any security that includes, relates to, or derives any significant part of its value
from the Undersigned’s Shares. 
 Notwithstanding the foregoing, the undersigned may transfer the
Undersigned’s Shares as a bona fide gift or gifts, provided that the donee or donees thereof agree to be bound in writing by the restrictions set forth herein. The undersigned now has, and, except as contemplated by the immediately
preceding sentence, for the duration of this Lock-Up Agreement will have, good and marketable title to the Undersigned’s Shares, free and clear of all liens, encumbrances, and claims whatsoever1. The undersigned also agrees and consents to the entry of stop
transfer instructions with the Company’s transfer agent and registrar against the transfer of the Undersigned’s Shares except in compliance with the foregoing restrictions. 

In order to enforce this covenant, the Company shall impose irrevocable stop-transfer instructions preventing the Transfer Agent from
effecting any actions in violation of this Lock-Up Agreement. 
 The undersigned acknowledges that the execution, delivery and
performance of this Lock-Up Agreement is a material inducement to each Buyer to complete the transactions contemplated by the Purchase Agreement and that the Company shall be entitled to specific performance of the undersigned’s obligations
hereunder. The undersigned hereby represents that the undersigned has the power and authority to execute, deliver and perform this Lock-Up Agreement, that the undersigned has received adequate consideration therefor and that the undersigned will
indirectly benefit from the closing of the transactions contemplated by the Purchase Agreement. 
  

 

	1	 For the agreement to be entered into by Accentia, add “except for security interests granted to unrelated third parties securing obligations under
which the undersigned has no monetary payment obligations during the Lock-Up Period.” 

  
 The undersigned
understands and agrees that this Lock-Up Agreement is irrevocable and shall be binding upon the undersigned’s heirs, legal representatives, successors, and assigns. 
 This Lock-Up Agreement may be executed in two counterparts, each of which shall be deemed an original but both of which shall be considered one and the same instrument. 

This Lock-Up Agreement will be governed by and construed in accordance with the laws of the State of New York, without giving effect to
any choice of law or conflicting provision or rule (whether of the State of New York, or any other jurisdiction) that would cause the laws of any jurisdiction other than the State of New York to be applied. In furtherance of the foregoing, the
internal laws of the State of New York will control the interpretation and construction of this Lock-Up Agreement, even if under such jurisdiction’s choice of law or conflict of law analysis, the substantive law of some other jurisdiction would
ordinarily apply. 
 [Remainder of page intentionally left blank] 

  
 
	
	Very truly yours,
	
	  

	Exact Name of Stockholder
	
	  

	Authorized Signature
	
	  

	Title

  

			
	 Agreed to and Acknowledged:

	
	 BIOVEST INTERNATIONAL, INC.

		
	By:	 	  

		 	Name:
		 	Title:

  
 Exhibit I

 REAFFIRMATION AGREEMENT 
 REAFFIRMATION AGREEMENT, dated as of October     , 2010 (this “Agreement”), is made by Biovest International, Inc., a Delaware corporation (the
“Company”) in favor of each of the investors (the “Buyers”) named on the Schedules of Buyers attached to the Securities Purchase Agreement (the “Securities Purchase Agreement”) dated as of
October 19, 2010 by and among the Company and the Buyers. Capitalized terms used herein but not specifically defined herein shall have the meanings ascribed to them in the Securities Purchase Agreement. 

WHEREAS, on November 10, 2008, Accentia Biopharmaceuticals, Inc. and its Subsidiaries, the Company, Analytica International, Inc.,
TEAMM Pharmaceuticals, Inc., AccentRx, Inc., Accentia Specialty Pharmacy, Inc., Biovax, Inc., AutovaxID, Inc., Biolender, LLC and Biolender II, LLC filed voluntary petitions for relief under Chapter 11 of Title 11 of the United States Code, 11
U.S.C. §§ 101-1330 (as amended, the “Bankruptcy Code”), with the United States Bankruptcy Court for the Middle District of Florida (Tampa Division); 

WHEREAS, on August 16, 2010, the Company filed its First Amended Joint Plan of Reorganization of Biovest International, Inc.,
Biovax, Inc., Autovaxid, Inc., Biolender, LLC, and Biolender II, LLC under Chapter 11 Plan of Title 11, United States Code (as amended, modified or supplemented in accordance with its terms, the Bankruptcy Code or the Federal Bankruptcy Procedure
and local rules, the “Plan”); 
 WHEREAS, on October     , 2010, the Bankruptcy
Court entered the Order Granting Debtor’s Emergency Motion For Authority To Obtain From [Empery Asset Master Ltd.] Postpetition Financing And Grant Superpriority Administrative Expense Status Pursuant To 11 U.S.C. §§ 364(c) and
(d) and F.R.B.P. 4001 (the “Financing Order”) pursuant to which, among other things, the Buyers were authorized to make and the Company was authorized to incur post-petition loans and advances secured by the Collateral (as defined in
the Securities Purchase Agreement); 
 WHEREAS, in connection with the Financing Order, the Company and the Buyers, entered into
the Securities Purchase Agreement pursuant to which the Company issued to the Buyers senior secured convertible notes (the “Initial Notes”) that are convertible into shares of the common stock of the Company, par value $0.01 per
share (the “Common Stock”), and warrants (the “Initial Warrants”), which are exercisable into shares of Common Stock; 
 WHEREAS, on the effective date (the “Effective Date”) of the Plan, (i) the Initial Notes are to be mandatorily exchangeable and exchanged by each Buyer for an aggregate principal
amount of new convertible notes (the “Exchange Notes”) equal to the aggregate principal amount of Initial Notes being exchanged by each such holder thereof plus accrued but unpaid interest thereon and (ii) the Initial Warrants
are to be mandatorily exchangeable and exchanged by each Buyer for new warrants (the “Exchange Warrants”), representing the right to acquire the same number of shares of Common Stock as the unexercised Initial Warrants; and

  
 WHEREAS, it is a
condition precedent to the exchange of (i) the Initial Notes for the Exchange Notes and (ii) the Initial Warrants for the Exchange Warrants on the Effective Date of the Plan that the Company shall have executed and delivered to the Buyers
this Agreement. 
 NOW THEREFORE, in consideration of the premises and for other good and valuable consideration, the parties
hereto hereby agree as follows: 
 1. Reaffirmation and Confirmation. The Company hereby (a) confirms and agrees
that the Securities Purchase Agreement is, and following the Effective Date shall continue to be, in full force and effect and is hereby ratified, assumed, adopted, and confirmed in all respects, (b), as of the Effective Date, acknowledges, agrees
to be bound by, and reaffirms its obligations as set forth in the Securities Purchase Agreement and (c) agrees to continue to comply with, and be subject to, all of the terms, provisions, conditions, covenants, agreements and obligations
applicable to it in the Securities Purchase Agreement, which remain in full force and effect following the Effective Date. 
 2.
Agreement as a Transaction Document. The Company acknowledges and agrees that this Agreement shall constitute a “Transaction Document” under the Securities Purchase Agreement and the other Transaction Documents. 

3. General Provisions. 
 (a) Effectiveness of Transaction Documents. This Agreement does not and shall not affect any of the obligations of the Company under or arising from the Securities Purchase Agreement or any other
Transaction Document, all of which obligations shall remain in full force and effect. The execution, delivery and effectiveness of this Agreement shall not operate as a waiver of any right, power or remedy of any Buyer under the Securities Purchase
Agreement or any other Transaction Document, nor constitute a waiver of any provision of the Securities Purchase Agreement or any other Transaction Document. 
 (b) Representations and Warranties. The Company further represents and warrants that (i) the execution, delivery and performance of this Agreement have been duly authorized by all necessary
action, (ii) it has duly executed and delivered this Agreement, and (iii) this Agreement is a legal, valid and binding obligation of the Company, enforceable against the Company in accordance with its terms, except as enforcement may be
limited by equitable principles or by bankruptcy, insolvency, reorganization, moratorium, or similar laws relating to or limiting creditors’ rights generally. 
 (c) CHOICE OF LAW. THIS AGREEMENT SHALL BE GOVERNED BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK, WITHOUT REFERENCE TO THE CONFLICTS OR CHOICE OF LAW
PRINCIPLES THEREOF. 
 (d) JURY TRIAL WAIVER. THE PARTIES HERETO HEREBY WAIVE THEIR RESPECTIVE RIGHTS TO A JURY TRIAL OF
ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT OF ANY OF THE LOAN DOCUMENTS OR ANY OF THE TRANSACTIONS CONTEMPLATED THEREIN, INCLUDING CONTRACT CLAIMS, TORT CLAIMS, BREACH OF DUTY CLAIMS, AND ALL OTHER COMMON

 
LAW OR STATUTORY CLAIMS. THE PARTIES HERETO REPRESENT THAT EACH HAS REVIEWED THIS WAIVER AND EACH KNOWINGLY AND VOLUNTARILY WAIVES ITS JURY TRIAL RIGHTS FOLLOWING CONSULTATION WITH LEGAL COUNSEL.
IN THE EVENT OF LITIGATION, A COPY OF THIS AGREEMENT MAY BE FILED AS A WRITTEN CONSENT TO A TRIAL BY THE COURT. 
 [SIGNATURE
PAGE FOLLOWS] 

  
 IN WITNESS WHEREOF,
the undersigned have caused this Agreement to be executed by an officer thereunto duly authorized, as of the date first above written. 
  

			
	COMPANY:
	
	 BIOVEST INTERNATIONAL, INC.,
 a Delaware corporation

		
	By:	 	  

	Title:	 	  

Reaffirmation Agreement

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