Document:

Exhibit 4.1

Execution Version

 

Two Harbors Investment Corp.

 

as Issuer

 

The Bank of New York Mellon Trust Company,
N.A.

 

as Trustee

 

Second Supplemental Indenture

 

Dated as of February 1, 2021

 

to the Indenture

 

Dated as of January 19, 2017

 

6.25% Convertible Senior Notes due 2026

 

     

     

    

 

TABLE OF CONTENTS

 

	ARTICLE 1 DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION	5
	Section 1.01   Scope of Supplemental Indenture	5
	Section 1.02   Definitions	6
	Section 1.03   References to Interest	12
	ARTICLE 2 THE SECURITIES	12
	Section 2.01   Title and Terms; Payments	12
	Section 2.02   Forms	13
	Section 2.03   Transfer and Exchange	14
	Section 2.04   Payments on the Securities	17
	ARTICLE 3 REDEMPTIONS AND PURCHASES	18
	Section 3.01   Amendments to the Base Indenture	18
	Section 3.02   Purchase at Option of Holders upon a Fundamental Change	18
	Section 3.03   Effect of Fundamental Change Purchase Notice	21
	Section 3.04   Withdrawal of Fundamental Change Purchase Notice	21
	Section 3.05   Deposit of Fundamental Change Purchase Price	21
	Section 3.06   Securities Purchased in Whole or in Part	22
	Section 3.07   Covenant To Comply with Applicable Laws upon Purchase of Securities	22
	Section 3.08   Repayment to the Company	22
	ARTICLE 4 CONVERSION	22
	Section 4.03   Settlement Upon Conversion	25
	Section 4.04   Adjustment of Conversion Rate	26
	Section 4.05   Adjustments of Prices and Voluntary Adjustments	34
	Section 4.06   Adjustment to Conversion Rate Upon Conversion in Connection with a Make-Whole Fundamental Change
	35
	Section 4.07   Effect of Recapitalization, Reclassification, Consolidation, Merger or Sale	36
	Section 4.08   Stock Issued Upon Conversion	38
	Section 4.09   Responsibility of Trustee	38
	Section 4.10   Notice to Holders	39
	ARTICLE 5 PARTICULAR COVENANTS OF THE COMPANY	40
	Section 5.02   Maintenance of Office or Agency	40
	Section 5.03   Appointments to Fill Vacancies in Trustee's Office	41
	Section 5.04   Provisions as to Paying Agent	41
	Section 5.05   Reports	42
	Section 5.06   Statements as to Defaults	42

 

     

     

    

 

	Section 5.07   Supplementary Interest Notice	42
	Section 5.08   Covenant to Take Certain Actions	43
	ARTICLE 6 REMEDIES	43
	Section 6.01   Amendments to the Base Indenture	43
	Section 6.02   Events of Default	43
	Section 6.03   Acceleration; Rescission and Annulment	44
	Section 6.04   Supplementary Interest	45
	Section 6.05   Waiver of Past Defaults	45
	Section 6.06   Control by Majority	45
	Section 6.07   Limitation on Suits	46
	Section 6.08   Rights of Holders to Receive Payment and to Convert	46
	Section 6.09   Collection of Indebtedness; Suit for Enforcement by Trustee	46
	Section 6.10   Trustee May Enforce Claims Without Possession of Securities	46
	Section 6.11   Trustee May File Proofs of Claim	47
	Section 6.12   Restoration of Rights and Remedies	47
	Section 6.13   Rights and Remedies Cumulative	47
	Section 6.14   Delay or Omission Not a Waiver	47
	Section 6.15   Priorities	48
	Section 6.16   Undertaking for Costs	48
	Section 6.17   Waiver of Stay, Extension and Usury Laws	48
	Section 6.18   Notices from the Trustee	49
	ARTICLE 7 SATISFACTION AND DISCHARGE	49
	Section 7.01   Inapplicability of Provisions of Base Indenture; Satisfaction and Discharge of the Indenture	49
	Section 7.02   Deposited Monies to Be Held in Trust by Trustee	50
	Section 7.03   Paying Agent to Repay Monies Held	50
	Section 7.04   Return of Unclaimed Monies	50
	Section 7.05   Reinstatement	50
	ARTICLE 8 SUPPLEMENTAL INDENTURES	50
	Section 8.01   Supplemental Indentures Without Consent of Holders	50
	Section 8.02   Supplemental Indentures With Consent of Holders	51
	Section 8.03   Notice of Amendment or Supplement	52
	ARTICLE 9 SUCCESSOR COMPANY	52
	Section 9.01   Consolidation, Merger and Sale of Assets	52
	Section 9.02   Company May Consolidate, Etc. on Certain Terms	53
	Section 9.03   Successor Corporation to Be Substituted	53
	Section 9.04   Opinion of Counsel to Be Given to Trustee	54

 

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	ARTICLE 10 MEETING OF HOLDERS OF SECURITIES	54
	Section 10.01   Purposes for Which Meetings May Be Called	54
	Section 10.02   Call, Notice and Place of Meetings	54
	Section 10.03   Persons Entitled to Vote at Meetings	54
	Section 10.04   Quorum; Action	55
	Section 10.05   Determination of Voting Rights; Conduct and Adjournment of Meetings	56
	Section 10.06   Counting Votes and Recording Action of Meetings	57
	ARTICLE 11 MISCELLANEOUS	57
	Section 11.01   Effect on Successors and Assigns	57
	Section 11.02   Governing Law; Jurisdiction; Waiver of Jury Trial	57
	Section 11.03   No Security Interest Created	57
	Section 11.04   Trust Indenture Act	57
	Section 11.05   Benefits of Supplemental Indenture	58
	Section 11.06   Calculations	58
	Section 11.07   Execution in Counterparts	58
	Section 11.08   Notices	59
	Section 11.09   Ratification of Base Indenture	59
	Section 11.10   The Trustee	59
	Section 11.11   No Recourse Against Others	59

 

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SECOND SUPPLEMENTAL
INDENTURE (this “Supplemental Indenture”), dated as of February 1, 2021, between Two Harbors Investment Corp.,
a Maryland corporation (the “Company”), and The Bank of New York Mellon Trust Company, N.A. (the “Trustee”),
as trustee under the Indenture dated as of January 19, 2017, between the Company and the Trustee (as amended or supplemented from
time to time in accordance with the terms thereof, the “Base Indenture”).

 

RECITALS OF THE COMPANY

 

WHEREAS, the Company
executed and delivered the Base Indenture to the Trustee to provide, among other things, for the issuance, from time to time, of
the Company’s unsecured senior debt Securities, in an unlimited aggregate principal amount, in one or more series to be established
by the Company under, and authenticated and delivered as provided in, the Base Indenture;

 

WHEREAS, Section 9.01(5)
of the Base Indenture provides for the Company and the Trustee to enter into supplemental indentures to the Base Indenture to establish
the form and terms of Securities of any series as contemplated by Article III of the Base Indenture;

 

WHEREAS, the Board
of Directors has duly adopted resolutions authorizing the Company to execute and deliver this Supplemental Indenture;

 

WHEREAS, pursuant to
the terms of the Base Indenture, the Company has authorized the creation and issuance under this Supplemental Indenture of its
6.25% Convertible Senior Notes due 2026 (the “Securities”), the form and substance of such Securities and the
terms, provisions and conditions thereof to be set forth as provided in the Base Indenture and this Supplemental Indenture;
and

 

WHEREAS, the Company
has requested that the Trustee execute and deliver this Supplemental Indenture, and that all requirements necessary to make (i)
this Supplemental Indenture a valid instrument in accordance with its terms, and (ii) the Securities, when executed by the Company
and authenticated and delivered by the Trustee, the valid obligations of the Company have been performed, and the execution and
delivery of this Supplemental Indenture have been duly authorized in all respects.

 

NOW, THEREFORE, THIS
SUPPLEMENTAL INDENTURE WITNESSETH, for and in consideration of the premises and the purchases of the Securities by the Holders
thereof, it is mutually agreed, for the benefit of the Company and the equal and proportionate benefit of all Holders, as follows:

 

ARTICLE
1

DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

 

Section 1.01        Scope
of Supplemental Indenture. The changes, modifications and supplements to the Base Indenture effected by this
Supplemental Indenture shall be applicable only with respect to, and shall govern only the terms of (and only the rights of
the Holders and the obligations of the Company with respect to), the Securities, which may be issued from time to time, and
shall not apply to any other securities that may be issued under the Base Indenture (or govern the rights of the Holders or
the obligations of the Company with respect to any such other securities) unless a supplemental indenture with respect to
such other securities specifically incorporates such changes, modifications and supplements. The provisions of this
Supplemental Indenture shall, with respect to the Securities, supersede any corresponding provisions in the Base Indenture.
Subject to the preceding sentence, and except as otherwise provided herein, the provisions of the Base Indenture shall apply
to the Securities and govern the rights of the Holders of the Securities and the obligations of the Company and the Trustee
with respect thereto.

 

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Section 1.02       
Definitions. For all purposes of the Indenture, except
as otherwise expressly provided or unless the context otherwise requires:

 

		(i)	the terms defined in this Article 1 shall have the meanings assigned to them in this Article 1
and include the plural as well as the singular; and

 

		(ii)	all words, terms and phrases defined in the Base Indenture (but not otherwise defined herein) shall
have the same meanings as in the Base Indenture.

 

“Additional
Shares” has the meaning specified in Section 4.06(a) hereof.

 

“Agent Members”
has the meaning specified in Section 2.02(c) hereof.

 

“Applicable
Procedures” means, with respect to any matter at any time, the policies and procedures of the Depository, if any, that
are applicable to such matter at such time.

 

“Base Indenture”
has the meaning specified in the first paragraph of this Supplemental Indenture, as such instrument may be supplemented from time
to time by one or more indentures supplemental thereto, including, unless the context otherwise requires, this Supplemental Indenture,
entered into pursuant to the applicable provisions of the Base Indenture, including, for all purposes of the Base Indenture, this
Supplemental Indenture and any such other supplemental indenture, the provisions of the Trust Indenture Act that are deemed to
be a part of and govern the Base Indenture, this Supplemental Indenture and any other such supplemental indenture, respectively.

 

“Business
Day” means, notwithstanding anything to the contrary in Section 1.01 of the Base Indenture, any day other than a Saturday,
a Sunday or a day on which the Federal Reserve Bank of New York is authorized or required by law, regulation or executive order
to close or to be closed.

 

“Capital Stock”
means, for any Person, any and all shares, interests, rights to purchase, warrants, options, participations or other equivalents
of or interests in (however designated) the equity of such Person, but excluding any debt securities convertible into such equity.

 

“Clause A
Distribution” has the meaning specified in Section 4.04(c) hereof.

 

“Clause B
Distribution” has the meaning specified in Section 4.04(c) hereof.

 

“Clause C
Distribution” has the meaning specified in Section 4.04(c) hereof.

 

“Close of
Business” means 5:00 p.m., New York City time.

 

“Common
Equity” of any Person means the Capital Stock of such Person that is generally entitled (a) to vote in the election
of directors of such Person or (b) if such Person is not a corporation, to vote or otherwise participate in the selection of
the governing body, partners, managers or others that will control the management or policies of such Person.

 

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“Common Stock”
means, subject to Section 4.07, the shares of common stock, par value $0.01 per share, of the Company authorized at the date of
this instrument as originally executed or shares of any class or classes of common stock resulting from any reclassification or
reclassifications thereof; provided, however, that if at any time there shall be more than one such resulting class,
the shares so issuable on conversion of Securities shall include shares of all such classes, and the shares of each such class
then so issuable shall be substantially in the proportion which the total number of shares of such class resulting from all such
reclassifications bears to the total number of shares of all such classes resulting from all such reclassifications. “Common
Stock” includes any stock of any class of Capital Stock which has no preference in respect of dividends or of amounts payable
in the event of any voluntary or involuntary liquidation, dissolution or winding up of the issuer thereof and which is not subject
to redemption by the issuer thereof.

 

“Company”
has the meaning specified in the first paragraph of this Supplemental Indenture, and subject to the provisions of Section 9.02,
shall include its successors and assigns.

 

“Conversion
Agent” means the office or agency designated by the Company where Securities may be presented for conversion as specified
in Section 5.02.

 

“Conversion
Date” has the meaning specified in Section 4.02(b) hereof.

 

“Conversion
Notice” has the meaning specified in Section 4.02(b)(1) hereof.

 

“Conversion
Obligation” has the meaning specified in Section 4.03(a) hereof.

 

“Conversion
Price” means, in respect of each Security, as of any date, $1,000 divided by the Conversion Rate in effect on
such date.

 

“Conversion
Rate” means initially 135.5014 shares of Common Stock per $1,000 principal amount of Securities, subject to adjustment
as set forth herein.

 

“Custodian”
means the Trustee, as custodian with respect to the Securities (so long as the Securities constitute Global Securities), or any
successor entity.

 

“Corporate
Trust Office” means the office of the Trustee at which, at any particular time, its corporate trust business shall be
principally administered, which office as of the date of this instrument is located at The Bank of New York Mellon Trust Company,
N.A., 500 Ross Street, 12th Floor, Pittsburgh, PA 15262, Attn: Corporate Trust Administration, except that with respect to presentation
of Securities for payment or for registration of transfer, conversion or exchange, such term shall mean the office or agency of
the Trustee at which at any particular time its corporate agency business shall be conducted, which office at the date of this
instrument is located at The Bank of New York Mellon Trust Company, N.A., 500 Ross Street, 12th Floor, Pittsburgh, PA 15262, Attn:
Corporate Trust Administration, or, in the case of any of such offices or agency, such other address as the Trustee may designate
from time to time by notice to the Company.

 

“Default”
means any event that is, or with the passage of time or the giving of notice or both would be, an Event of Default.

 

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“DTA”
has the meaning specified in Section 4.04(d) hereof.

 

“Effective
Date” has the meaning specified in Section 4.06(c) hereof.

 

“Event of
Default” has the meaning, notwithstanding anything to the contrary in Section 1.01 of the Base Indenture, specified in
Section 6.02 hereof.

 

“Exchange
Act” means the Securities Exchange Act of 1934, as amended.

 

“Ex-Dividend
Date” means the first date on which shares of the Common Stock trade on the applicable exchange or in the applicable
market, regular way, without the right to receive the issuance, dividend or distribution in question.

 

“Form of Assignment
and Transfer” means the “Form of Assignment and Transfer” attached as Attachment 3 to the Form of
Security attached hereto as Exhibit A.

 

“Form of Fundamental
Change Purchase Notice” means the “Form of Fundamental Change Purchase Notice” attached as Attachment
2 to the Form of Security attached hereto as Exhibit A.

 

“Form of Notice
of Conversion” means the “Form of Notice of Conversion” attached as Attachment 1 to the Form of Security
attached hereto as Exhibit A.

 

“Fundamental
Change” shall be deemed to have occurred at the time after the Securities are originally issued if any of the following
occurs:

 

(1)               any
 “person” or “group” (within the meaning of Section 13(d) of the Exchange Act, other than the Company or
its Subsidiaries) other than the Company or its subsidiaries files a Schedule TO or any schedule, form or report under the Exchange
Act disclosing that such person or group has become the direct or indirect ultimate “beneficial owner,” as defined
in Rule 13d-3 under the Exchange Act, of the Company’s Common Equity representing more than 50% of the voting power of the
Company’s Common Equity;

 

(2)               the consummation of (x) any consolidation, merger, amalgamation, scheme of arrangement or other binding share exchange or
reclassification or similar transaction between the Company and another person (other than any of the Company’s Subsidiaries),
in each case pursuant to which the Common Stock shall be converted into cash, securities or other property, other than a transaction
(i) that results in the holders of all classes of the Company’s Common Equity immediately prior to such transaction owning,
directly or indirectly, as a result of such transaction, more than 50% of the surviving corporation or transferee or the parent
thereof immediately after such event, or (ii) effected solely to change the Company’s jurisdiction of incorporation or to
form a holding company for the Company and that results in a share exchange or reclassification or similar exchange of the outstanding
Common Stock solely into common shares of the surviving entity or (y) any sale or other disposition in one transaction or a series
of transactions of all or substantially all of the assets of the Company and its Subsidiaries, on a consolidated basis, to another
person (other than any of the Company’s Subsidiaries);

 

(3)                the
Company’s stockholders approve any plan or proposal for the liquidation or dissolution of the Company (other than in a transaction
described in clause (2) above); or

  

(4)               
 the Common Stock ceases to be listed on The New York Stock Exchange, The NASDAQ Global Select Market or The NASDAQ Global
Market (or any of their respective successors;

 

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provided, however,
that in the case of a transaction or event described in clause (1) or (2) above, if at least 90% of the consideration received
or to be received by holders of the Common Stock (excluding cash payments for fractional shares) in the transaction or transactions
that would otherwise constitute a “Fundamental Change” consists of shares of common stock or common equity interests
that are traded on The New York Stock Exchange, The NASDAQ Global Select Market or The NASDAQ Global Market (or any of their respective
successors) or that will be so traded when issued or exchanged in connection with the transaction that would otherwise constitute
a “Fundamental Change” under clause (1) or (2) above (“Publicly Traded Securities”), and as a result
of such transaction or transactions, the Securities become convertible into or by reference to such Publicly Traded Securities,
excluding cash payments for fractional shares (subject to settlement in accordance with the provisions of Sections 4.03, 4.04 and
4.06 hereof), such event shall not be a “Fundamental Change.”

 

“Fundamental
Change Company Notice” has the meaning specified in Section 3.02(b) hereof.

 

“Fundamental
Change Expiration Time” has the meaning specified in Section 3.02(a)(1) hereof.

 

“Fundamental
Change Purchase Date” has the meaning specified in Section 3.02(a) hereof.

 

“Fundamental
Change Purchase Notice” has the meaning specified in Section 3.02(a)(1) hereof.

 

“Fundamental
Change Purchase Price” has the meaning specified in Section 3.02(a) hereof.

 

“Global Security”
means a Security which is executed by the Company and authenticated and delivered to the Depository or its nominee, all in accordance
with the Indenture and pursuant to a Company Order, which shall be registered in the name of the Depository or its nominee and
which shall represent the amount of uncertificated Securities as specified therein.

 

“Holder”
means, notwithstanding anything to the contrary in Section 1.01 of the Base Indenture, the Person in whose name a Security is registered
in the Security Register; provided that, subject to Section 2.03(c) hereof, as applied to any Security that is a Global
Security, references to “Holder” (other than references to “registered Holder”) shall mean the owner of
beneficial interests in such Security unless the context otherwise provides.

 

“Indenture”
means, notwithstanding anything to the contrary in Section 1.01 of the Base Indenture, the Base Indenture, as originally executed
and as supplemented by this Supplemental Indenture, each as may be amended or supplemented from time to time.

 

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“Interest
Payment Date” means, with respect to the payment of interest on the Securities and notwithstanding anything to the contrary
in Section 1.01 of the Base Indenture, each January 15 and July 15 of each year, beginning on July 15, 2021.

 

“Issue Date”
means, with respect to the Securities, February 1, 2021.

 

“Last Reported
Sale Price” of the Common Stock for any Trading Day means the closing sale price per share (or, if no closing sale price
is reported, the average of the last bid and last ask prices or, if more than one in either case, the average of the average last
bid and the average last ask prices) on that Trading Day as reported in composite transactions for the principal U.S. national
or regional securities exchange on which the Common Stock is traded. If the Common Stock is not listed for trading on a U.S. national
or regional securities exchange on the relevant Trading Day, the “Last Reported Sale Price” will be the last quoted
bid price for the Common Stock in the over-the-counter market on the relevant date as reported by OTC Markets Group Inc. or a similar
organization. If the Common Stock is not so quoted, the “Last Reported Sale Price” will be the average of the mid-point
of the last bid and last ask prices for the Common Stock on the relevant Trading Day from each of at least three nationally recognized
independent investment banking firms selected by the Company for this purpose. Any such determination will be conclusive absent
manifest error.

 

“Make-Whole
Fundamental Change” means any event that (i) is a Fundamental Change or (ii) would be a Fundamental Change, but for the
exclusion in section (i) of clause (2) of the definition thereof.

 

“Market Disruption
Event” means (1) a failure by the primary exchange or quotation system on which the Common Stock trades or is quoted
to open for trading during its regular trading session or (2) the occurrence or existence, prior to 1:00 p.m., New York City time,
on any Trading Day for the Common Stock, of an aggregate one half-hour period of any suspension or limitation imposed on trading
(by reason of movements in price exceeding limits permitted by the stock exchange or otherwise) in the Common Stock or in any options,
contracts or future contracts relating to the Common Stock.

 

“Maturity
Date” means, with respect to any Security and the payment of the principal amount thereof, January 15, 2026.

 

“Merger Event”
has the meaning specified in Section 4.07(a) hereof.

 

“Notice of
Default” has the meaning, notwithstanding anything to the contrary in Section 1.01 of the Base Indenture, specified in
Section 6.02(f) hereof.

 

“Offer Expiration
Date” has the meaning specified in Section 4.04(e) hereof.

 

“Open of Business”
means 9:00 a.m., New York City time.

 

“Outstanding”
means, with respect to the Securities, notwithstanding anything to the contrary in Section 1.01 of the Base Indenture, any
Securities authenticated by the Trustee except (i) Securities cancelled by it, (ii) Securities delivered to it for
cancellation and (iii)(A) Securities replaced pursuant to Section 3.06 of the Base Indenture, on and after the time such
Security is replaced (unless the Trustee and the Company receive proof satisfactory to them that such Security is held by a
bona fide purchaser), (B) Securities converted pursuant to Article 4 hereof, on and after their Conversion Date, (C) any and
all Securities, as of the Maturity Date, if the Paying Agent holds, in accordance with this Indenture, money sufficient to
pay all of the Securities then payable, and (D) any and all Securities owned by the Company or any other obligor upon the
Securities or any Affiliate of the Company or of such other obligor, except that in determining whether the Trustee shall be
protected in relying upon any request, demand, authorization, direction, notice consent or waiver or other action that is to
be made by a requisite principal amount of Outstanding Securities, for purposes of clause (D) only those Securities
identified to the Trustee pursuant to an Officer’s Certificate shall be disregarded and deemed not to be
Outstanding.

 

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“Paying Agent”
has the meaning set forth in the Base Indenture and shall be the Person authorized by the Company to pay the principal amount of,
interest on, or Fundamental Change Purchase Price of, any Securities on behalf of the Company.

 

“Physical
Securities” means any non-Global Security issued pursuant to Section 2.03 hereof that is in definitive, fully registered
form, without interest coupons.

 

“Preliminary
Prospectus Supplement” means the Preliminary Prospectus Supplement of the Company, dated January 26, 2021, to the Prospectus
of the Company dated February 28, 2018, relating to the offering and sale of the Securities.

 

“Publicly
Traded Securities” has the meaning specified in the definition of “Fundamental Change” in this Section 1.02.

 

“Reference
Property” has the meaning specified in Section 4.07(a) hereof.

 

“Regular Record
Date” means, with respect to any Interest Payment Date, the January 1 (whether or not a Business Day) or the July 1 (whether
or not a Business Day), as the case may be, immediately preceding such Interest Payment Date.

 

“Reporting
Event of Default” has the meaning specified in Section 6.04(a) hereof.

 

“Scheduled
Trading Day” means a day that is scheduled to be a Trading Day on the principal U.S. national or regional securities
exchange or market on which the Common Stock is listed or admitted for trading. If the Common Stock is not so listed or admitted
for trading, “Scheduled Trading Day” means a Business Day.

 

“Security”
or “Securities” has the meaning specified in the fourth paragraph of the Recitals of this Supplemental Indenture,
notwithstanding anything to the contrary in Section 1.01 of the Base Indenture.

 

“Significant
Subsidiary” means, with respect to any Person, a Subsidiary of such Person that would constitute a “significant
subsidiary” as such term is defined in Article 1, Rule 1-02 of Regulation S-X, promulgated pursuant to the Securities Act,
as in effect on the original date of issuance of the Securities.

 

“Spin-Off”
has the meaning specified in Section 4.04(c) hereof.

 

“Stock Price”
has the meaning specified in Section 4.06(c) hereof.

 

“Successor
Company” has the meaning specified in Section 9.02(a) hereof.

 

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“Supplemental
Indenture” has the meaning specified in the first paragraph hereof, as such instrument may be supplemented from time
to time by one or more indentures supplemental hereto, entered into pursuant to the applicable provisions of the Base Indenture
and this Supplemental Indenture, including, for all purposes of this Supplemental Indenture and any such other supplemental indenture,
the provisions of the Trust Indenture Act that are deemed to be a part of and govern the Base Indenture, this Supplemental Indenture
and any other such supplemental indenture, respectively.

 

“Supplementary
Interest” has the meaning specified in Section 6.04(a) hereof.

 

“Trading Day”
means a day during which (i) trading in the Common Stock generally occurs on the primary exchange or quotation system on which
the Common Stock then trades or is quoted and (ii) there is no Market Disruption Event. If the Common Stock is not so listed or
traded, “Trading Day” means a Business Day.

 

“Trigger Event”
has the meaning specified in Section 4.04(c) hereof.

 

“Trustee”
means the Person named as the “Trustee” in the first paragraph of this Supplemental Indenture until a successor Trustee
shall have become such pursuant to the applicable provisions of the Base Indenture and this Supplemental Indenture, and thereafter
 “Trustee” shall mean or include each Person who is then a Trustee hereunder.

 

“Unit of Reference
Property” has the meaning specified in Section 4.07(a) hereof.

 

“U.S.”
or “United States” means the United States of America.

 

“Valuation
Period” has the meaning specified in Section 4.04(c)(3) hereof.

 

Section 1.03    References
to Interest. Any reference to interest on, or in respect of, any Security in the Indenture shall be deemed to include
Supplementary Interest if, in such context, Supplementary Interest is, was or would be payable pursuant to Section 6.04. Any express
mention of the payment of Supplementary Interest in any provision hereof shall not be construed as excluding Supplementary Interest
in those provisions hereof where such express mention is not made.

 

ARTICLE
2

THE SECURITIES

 

Section
2.01        Title
and Terms; Payments.

 

		(a)	Establishment; Designation. Pursuant to Section 3.01 of the Base Indenture, there is hereby
established and authorized a new series of Securities under the Indenture, which series of Securities shall be designated the “6.25%
Convertible Senior Notes due 2026.”

 

		(b)	Initial Issuance. Subject to Section 2.01(c) hereof, the aggregate principal amount of
                                                               Securities that may initially be authenticated and delivered under the Indenture is limited to $287,500,000. In addition, the
                                                               Company may execute, and the Trustee may authenticate and deliver, in each case, in accordance with Section 3.03 of the Base
                                                               Indenture, an unlimited aggregate principal amount of additional Securities upon the transfer, exchange, purchase or
                                                               conversion of Securities pursuant to Sections
3.04, 3.05 and 3.06 of the Base Indenture and Sections 3.06 and 4.02 hereof.

 

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		(c)	Further Issues. The Company
                                         may, without the consent of the Holders, issue additional Securities under the Indenture
                                         with the same terms and the same CUSIP number as the Securities initially issued under
                                         the Indenture in an unlimited aggregate principal amount; provided, that the Company
                                         may issue such additional Securities only if they are part of the same issue (and part
                                         of the same series) as the Securities initially issued hereunder for United States federal
                                         income tax purposes. Any such additional Securities will, for all purposes of the Indenture,
                                         including waivers, amendments and offers to purchase, be treated as part of the same
                                         series as the Securities initially issued under the Indenture.

 

		(d)	Purchases. The Company and its Subsidiaries may from time to time purchase Securities in
open market purchases or negotiated transactions at the same or differing prices without giving prior notice to or obtaining any
consent of the Holders. Any Securities purchased by the Company or any of its Subsidiaries pursuant to the foregoing sentence or
otherwise will be retired and will no longer be Outstanding under the Indenture.

 

		(e)	Denominations. Pursuant to Sections 3.01 and 3.02 of the Base Indenture, the Securities
will be issued only in minimum denominations of $1,000 and integral multiples of $1,000 in excess thereof.

 

Section
2.02        Forms.

 

		(a)	In General. Pursuant to Article II of the Base Indenture, the Securities will be substantially
in the forms set forth in Exhibit A hereto, and may include such insertions, omissions, substitutions and other variations
as are required or permitted by the Indenture, and may have such letters, numbers or other marks of identification and such legends
or endorsements placed thereon as may be required to comply with the rules of any securities exchange or as may, consistently herewith,
be determined by the officers executing such Securities, as evidenced by their execution of the Securities.

 

Notwithstanding Section
3.05 of the Base Indenture, each Security will bear a Trustee's certificate of authentication substantially in the form included
in Exhibit A hereto. Each Security will also bear the Form of Notice of Conversion, the Form of Fundamental Change Purchase
Notice and the Form of Assignment and Transfer.

 

Any Security that is
a Global Security will bear a legend substantially in the form of the legend set forth in Exhibit A hereto and shall also
bear the “Schedule of Increases and Decreases of Global Security” set forth in Annex A to Exhibit A hereto.

 

The terms and provisions
contained in the Securities will constitute, and are hereby expressly made, a part of this Indenture and, to the extent applicable,
the Company and the Trustee, by their execution and delivery of this Supplemental Indenture, expressly agree to such terms and
provisions and to be bound thereby. However, to the extent that any provision of any Security conflicts with the express provisions
of the Indenture, the provisions of this Indenture will govern and control.

 

    13 

     

    

 

		(b)	Initial and Subsequent Form of Securities. The Company hereby initially appoints The Depository
Trust Company as the Depository for the Securities, which initially shall be issued in the form of one or more Global Securities
without interest coupons (i) registered in the name of Cede & Co., as nominee of the Depository, and (ii) delivered to the
Trustee as custodian for the Depository.

 

So long as the Securities
are eligible for book-entry settlement with the Depository, unless otherwise required by law, and except to the extent provided
in Section 2.03(c)(1) through (3) hereof, all Securities will be represented by one or more Global Securities.

 

		(c)	Global Securities. Each Global Security will represent the aggregate principal amount of
the then Outstanding Securities endorsed thereon and provide that it represents such aggregate principal amount of the then Outstanding
Securities, which aggregate principal amount may, from time to time, be reduced or increased to reflect transfers, exchanges, conversions
or purchases by the Company.

 

Only the Trustee, or
the Custodian holding such Global Security for the Depository, at the direction of the Trustee, may endorse a Global Security to
reflect the amount of any increase or decrease in the aggregate principal amount of the then Outstanding Securities represented
thereby, and whenever the registered Holder of a Global Security delivers instructions to the Trustee to increase or decrease the
aggregate principal amount of the then Outstanding Securities represented by a Global Security in accordance with the Indenture
and the Applicable Procedures, the Trustee, or the Custodian holding such Global Security for the Depository, at the direction
of the Trustee, will endorse such Global Security to reflect such increase or decrease in the aggregate principal amount of the
then Outstanding Securities represented thereby. None of the Trustee, the Company or any agent of the Trustee or the Company will
have any responsibility or bear any liability for any aspect of the records relating to or payments made on account of the ownership
of any beneficial interest in a Global Security or with respect to maintaining, supervising or reviewing any records relating to
such beneficial interest.

 

Members of, or participants
in, the Depository (“Agent Members”) shall have no rights under the Indenture with respect to any Global Security
held on their behalf by the Depository, or the Trustee as its custodian, or under such Global Security, and Cede & Co., or
such other Persons designated by the Depository as its nominee, may be treated by the Company, the Trustee and any agent of the
Company or the Trustee as the absolute owner of the Global Security for all purposes whatsoever under the Indenture and the Global
Securities. Notwithstanding the foregoing, 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 the Depository or impair,
as between the Depository and its Agent Members, the operation of customary practices governing the exercise of the rights of any
Holder.

 

Section
2.03        Transfer
and Exchange.

 

		(a)	In General. Notwithstanding anything to the contrary in Article III of the Base Indenture,
the Company is not required to transfer or exchange any Securities or portions thereof that have been surrendered for purchase
in accordance with Article 3 hereof (unless the related Fundamental Change Purchase Notice is withdrawn in accordance with the
provisions of Section 3.04) or for conversion in accordance with Article 4 hereof, and a written form of transfer substantially
in the form of the Form of Assignment and Transfer will be deemed to be written instrument of transfer satisfactory to the Company
and the Security Registrar.

 

    14 

     

    

 

At such time as all
interests in a Global Security have been purchased, converted, cancelled or exchanged for Securities in certificated form, such
Global Security shall, upon receipt thereof, be canceled by the Trustee in accordance with standing procedures and instructions
existing between the Depository and the Custodian for the Global Security. At any time prior to such cancellation, if any interest
in a Global Security is purchased, converted, cancelled or exchanged for Securities in certificated form, the principal amount
of such Global Security shall, in accordance with the standing procedures and instructions existing between the Depository and
the Custodian for the Global Security, be appropriately reduced, and an endorsement shall be made on such Global Security, by the
Trustee or the Custodian for the Global Security, at the direction of the Trustee, to reflect such reduction.

 

		(b)	Global Securities. Notwithstanding anything to the contrary in Section 3.05 of the Base
Indenture, every transfer and exchange of a beneficial interest in a Global Security will be effected through the Depository in
accordance with the Applicable Procedures and the provisions of the Indenture, and each Global Security may be transferred only
as a whole and only (A) by the Depository to a nominee of the Depository, (B) by a nominee of the Depository to the Depository
or to another nominee of the Depository, or (C) by the Depository or any such nominee to a successor Depository or a nominee of
such successor Depository.

 

		(c)	Holders Deemed Owners. Prior to due presentment of a Security for registration of transfer,
the Company, the Trustee and any agent of the Company or the Trustee may treat the Person in whose name such Security is registered
as the owner of such Security for the purpose of receiving payment of principal of and any interest (subject to Section 3.07 of
the Base Indenture) on such Security at the Maturity Date, in connection with a Fundamental Change, upon any conversion and for
all other purposes whatsoever, including delivery of shares of Common Stock on conversion, for distribution of notices to such
Holders or solicitations of their consent, whether or not such 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.

 

Notwithstanding anything
to the contrary in Section 3.05 of the Base Indenture:

 

(1)       Each
Global Security will be exchanged for Physical Securities if the Depository delivers notice to the Company that the Depository
is unwilling, unable or no longer permitted under applicable law to continue to act as Depository, and, in each case, the Company
promptly delivers a copy of such notice to the Trustee and the Company fails to appoint a successor Depository within 90 days after
receiving notice from the Depository.

 

(2)       If
an Event of Default has occurred and is continuing, any owner of a beneficial interest in a Global Security may exchange such beneficial
interest for Physical Securities by delivering a written request to the Security Registrar.

 

    15 

     

    

 

(3)       If
the Company notifies the Trustee that it wishes to terminate and exchange all or part of a Global Security for Physical Securities
and the beneficial owners of the majority of the principal amount of such Global Security (or portion thereof) to be exchanged
consent to such exchange, the Company may exchange all beneficial interests in such Global Security (or portion thereof) for Physical
Securities by delivering a written request to the Security Registrar.

 

In the case of an exchange
for Physical Securities under clause (1) above:

 

(A)       each
Global Security will be deemed surrendered to the Trustee for cancellation;

 

(B)       the
Trustee will cause each Global Security to be cancelled in accordance with the Applicable Procedures; and

 

(C)       the
Company, in accordance with Section 3.03 of the Base Indenture, will promptly execute, and, upon receipt of a Company Request,
the Trustee, in accordance with Section 3.03 of the Base Indenture, will promptly authenticate and deliver, for each beneficial
interest in each Global Security so exchanged, an aggregate principal amount of Physical Securities equal to the aggregate principal
amount of such beneficial interest, registered in such names and in such authorized denominations as the Depository specifies,
and bearing any legends that such Physical Securities are required to bear under this Indenture.

 

In the case of an exchange
for Physical Securities under clause (2) above:

 

(A)       the
Security Registrar will deliver notice of such request to the Company and the Trustee, which notice will identify the owner of
the beneficial interest to be exchanged, the aggregate principal amount of such beneficial interest and the CUSIP of the relevant
Global Security, in each case if and as such information is provided to the Security Registrar by the Depository;

 

(B)       the
Company, in accordance with Section 3.03 of the Base Indenture, will promptly execute, and, upon receipt of a Company Request,
the Trustee, in accordance with Section 3.03 of the Base Indenture, will promptly authenticate and deliver to such owner, for the
beneficial interest so exchanged by such owner, Physical Securities registered in such owner’s name having an aggregate principal
amount equal to the aggregate principal amount of such beneficial interest and bearing any legends that such Physical Securities
are required to bear under this Indenture; and

 

(C)       the
Security Registrar, in accordance with the Applicable Procedures, will cause the principal amount of such Global Security to be
decreased by the aggregate principal amount of the beneficial interest so exchanged. If all of the beneficial interests in a Global
Security are so exchanged, such Global Security will be deemed surrendered to the Trustee for cancellation, and the Trustee will
cause such Global Security to be cancelled in accordance with the Applicable Procedures.

 

    16 

     

    

 

In the case of an exchange
for Physical Securities under clause (3) above:

 

(A)       the
Company will deliver notice of such request to the Security Registrar and the Trustee, which notice will identify each owner of
a beneficial interest to be exchanged, the aggregate principal amount of each such beneficial interest and the CUSIP of the relevant
Global Security;

 

(B)       the
Company, in accordance with Section 3.03 of the Base Indenture, will promptly execute, and, upon receipt of a Company Request,
the Trustee, in accordance with Section 3.03 of the Base Indenture, will promptly authenticate and deliver to each such beneficial
owner, Physical Securities registered in such beneficial owner’s name having an aggregate principal amount equal to the aggregate
principal amount of its exchanged beneficial interest and bearing any legends that such Physical Securities are required to bear
under this Indenture and any applicable law; and

 

(C)       the
Security Registrar, in accordance with the Applicable Procedures, will cause the principal amount of each relevant Global Security
to be decreased by the aggregate principal amount of the beneficial interests so exchanged. If all of the beneficial interests
in a Global Security are so exchanged, such Global Security will be deemed surrendered to the Trustee for cancellation, and the
Trustee will cause such Global Security to be cancelled in accordance with the Applicable Procedures.

 

In each of the cases
described in clauses (1), (2) and (3) above, the Company may rely on the Depository to provide all names of beneficial owners and
their respective principal amounts beneficially owned and may issue Physical Securities registered in the names and amounts so
provided by the Depository.

 

(d)       Physical
Securities. Except to the extent otherwise provided in Section 2.03(a) hereof, Physical Securities may be transferred or exchanged
in accordance with Section 3.05 of the Base Indenture.

 

Section
2.04        Payments
on the Securities.

 

(a)       In
General. Each Security will accrue cash interest at a rate equal to 6.25% per annum from the most recent date to which interest
has been paid or duly provided for, or, if no interest has been paid or duly provided for, the Issue Date. Interest on a Security
will cease to accrue upon the earliest of the Maturity Date, subject to the provisions of Article 3 hereof, any Fundamental Change
Purchase Date for such Security, and subject to the provisions of Article 4 hereof, any Conversion Date for such Security. Interest
on any Security will be payable semi-annually in arrears on each Interest Payment Date, beginning July 15, 2021, to the Holder
of such Security as of the Close of Business on the Regular Record Date immediately preceding the applicable Interest Payment Date.
As provided in Section 3.11 of the Base Indenture, interest will be computed on the basis of a 360-day year comprised of twelve
30-day months. Pursuant to Section 6.04 hereof, in certain circumstances, the Company may be obligated to pay Holders Supplementary
Interest.

 

The Securities will
mature on the Maturity Date, and on the Maturity Date, each Holder of a then Outstanding Security will be entitled on such date
to receive $1,000 in cash for each $1,000 in principal amount of then Outstanding Securities held, together with accrued and unpaid
interest to, but not including, the Maturity Date on such then Outstanding Securities.

 

    17 

     

    

 

Notwithstanding anything
to the contrary, if the Maturity Date or any Interest Payment Date or Fundamental Change Purchase Date or any Conversion Date falls,
or if any payment, delivery, notice or other action by the Company is otherwise due, on a day that is not a Business Day, then
any action to be taken on such date need not be taken on such date, but may be taken on the immediately following Business Day
with the same force and effect as if taken on such date, and no additional interest will accrue and no Default shall occur on account
of such delay.

 

(b)       Method
of Payment. The Company will pay the principal of, the Fundamental Change Purchase Price for, and any cash in lieu of fractional
shares of Common Stock upon the conversion of, any Physical Security to the Holder of such Security in cash at the designated office
of the Paying Agent in the borough of Manhattan in The City of New York, New York, prior to 10:00 a.m. on the relevant payment
or settlement date, as the case may be. The Company will pay any interest on any Physical Security to the Holder of such Security
(i) if such Holder holds $2,000,000 or less aggregate principal amount of Securities, by check mailed to such Holder’s registered
address, and (ii) if such Holder holds more than $2,000,000 aggregate principal amount of Securities, (A) by check mailed to such
Holder’s registered address or, (B) if such Holder delivers to the Security Registrar a written request that the Company
make such payments by wire transfer to an account of such Holder within the United States, for each interest payment corresponding
to each Regular Record Date occurring during the period beginning on the date on which such Holder delivered such request and ending
on the date, if any, on which such Holder delivers to the Security Registrar a written instruction to the contrary, by wire transfer
of immediately available funds to the account specified by such Holder.

 

The Company will pay
the principal of, interest on, the Fundamental Change Purchase Price for, and any cash in lieu of fractional shares of Common Stock
upon the conversion of, any Global Security to the Depository by wire transfer of immediately available funds on the relevant payment
date in accordance with Applicable Procedures.

 

(c)       Defaulted
Payments. The Company shall pay any interest on the Securities that is payable, but is not punctually paid or duly provided
for, on the applicable Interest Payment Date, in accordance with Section 3.07 of the Base Indenture.

 

ARTICLE
3

REDEMPTIONS AND PURCHASES

 

Section
3.01        Amendments
to the Base Indenture.

 

(a)       No
Redemption. Article XI of the Base Indenture shall not apply with
respect to the Securities.

 

Section 3.02        Purchase
at Option of Holders upon a Fundamental Change. (a) If a Fundamental Change occurs, then each Holder shall have
the right, at such Holder’s option, to require the Company to purchase for cash all of such Holder’s Securities,
or any portion thereof such that the remaining principal amount of each Security that is not purchased in full equals $1,000
or an integral multiple of $1,000 in excess thereof, on a date (the “Fundamental Change Purchase Date”)
specified by the Company that is not less than 20 calendar days or more than 35 calendar days following the date on which the
Company delivers the Fundamental Change Company Notice, at a purchase price equal to 100% of the principal amount thereof,
plus accrued and unpaid interest thereon, if any, to, but excluding, the Fundamental Change Purchase Date (the
 “Fundamental Change Purchase Price”); provided, however, that if the Company purchases a
Security on a Fundamental Change Purchase Date that is after a Regular Record Date and on or prior to the Interest Payment
Date corresponding to such Regular Record Date, the Company shall instead pay such accrued and unpaid interest on such
Security on the Interest Payment Date to the Holder of record of such Security as of such Regular Record Date.

 

    18 

     

    

 

Purchases of Securities
under this Section 3.02 shall be made, at the option of the Holder thereof, upon:

 

(1)       if
the Securities to be purchased are Physical Securities, delivery to the Paying Agent by the Holder of a duly completed notice (the
 “Fundamental Change Purchase Notice”) in the form set forth in Attachment 2 to the Form of Security attached
hereto as Exhibit A and of the Securities, duly endorsed for transfer, on or before the Close of Business on the Business
Day immediately preceding the Fundamental Change Purchase Date, subject to extensions to comply with applicable law (the “Fundamental
Change Expiration Time”); and

 

(2)       if
the Securities to be purchased are Global Securities, delivery of the Securities, by book-entry transfer, in compliance with the
Applicable Procedures of the Depository and the satisfaction of any other requirements of the Depository in connection with tendering
beneficial interests in a Global Security for purchase, by the Fundamental Change Expiration Time.

 

The Fundamental Change
Purchase Notice in respect of any Securities to be purchased shall state:

 

(1)       if
certificated, the certificate numbers of such Securities;

 

(2)       the
portion of the principal amount of such Securities, which must be such that the principal amount that is not to be purchased of
each Security that is not to be purchased in full equals $1,000 or an integral multiple of $1,000 in excess thereof; and

 

(3)       that
such Securities are to be purchased by the Company pursuant to the applicable provisions of the Securities and this Indenture.

 

Notwithstanding anything
herein to the contrary, any Holder delivering to the Paying Agent the Fundamental Change Purchase Notice contemplated by this Section
3.02 shall have the right to withdraw, in whole or in part, such Fundamental Change Purchase Notice at any time prior to the Fundamental
Change Expiration Time by delivery of a written notice of withdrawal to the Paying Agent in accordance with Section 3.04.

 

The Paying Agent shall
promptly notify the Company of the receipt by it of any Fundamental Change Purchase Notice or written notice of withdrawal thereof.

 

(b)       On
or before the 20th calendar day after the occurrence of a Fundamental Change, the Company shall provide to all Holders of the
Securities, the Trustee and the Paying Agent (in the case of any Paying Agent other than the Trustee) a notice (the
 “Fundamental Change Company Notice”) of the occurrence of such Fundamental Change and of the purchase
right at the option of the Holders arising as a result thereof. Such notice shall be sent by first class mail or, in the case
of any Global Securities, in accordance with the procedures of the Depository for providing notices. Simultaneously with
providing such Fundamental Change Company Notice, the Company shall publish this information in a newspaper of general
circulation in The City of New York or publish the information on the Company’s website or through such other public
medium as the Company may use at that time.

 

    19 

     

    

 

Each Fundamental Change
Company Notice shall specify:

 

(1)       the
events causing the Fundamental Change;

 

(2)       the
date of the Fundamental Change;

 

(3)       the
last date on which a Holder of Securities may exercise the purchase right pursuant to this Article 3;

 

(4)       the
Fundamental Change Purchase Price;

 

(5)       the
Fundamental Change Purchase Date;

 

(6)       the
name and address of the Paying Agent and the Conversion Agent, if applicable;

 

(7)       the
applicable Conversion Rate and any adjustments to the applicable Conversion Rate;

 

(8)       that
the Securities with respect to which a Fundamental Change Purchase Notice has been delivered by a Holder may be converted only
if the Holder withdraws the Fundamental Change Purchase Notice in accordance with this Indenture;

 

(9)       that
the Holder shall have the right to withdraw any Securities surrendered for purchase prior to the Fundamental Change Expiration
Time; and

 

(10)     the
procedures that Holders must follow to require the Company to purchase their Securities.

 

No failure of the Company
to give the foregoing notices and no defect therein shall limit the purchase rights of the Holders of Securities or affect the
validity of the proceedings for the purchase of the Securities pursuant to this Section 3.02.

 

(c)       Notwithstanding
the foregoing, there shall be no purchase of any Securities pursuant to this Section 3.02 if the principal amount of the Securities
has been accelerated, and such acceleration has not been rescinded, on or prior to the Fundamental Change Purchase Date (except
in the case of an acceleration resulting from a Default by the Company in the payment of the Fundamental Change Purchase Price
with respect to such Securities). The Paying Agent will promptly return to the respective Holders thereof any Physical Securities
held by it during the acceleration of the Securities (except in the case of an acceleration resulting from a Default by the Company
in the payment of the Fundamental Change Purchase Price with respect to such Securities) and shall deem to be cancelled any instructions
for book-entry transfer of the Securities in compliance with the procedures of the Depository, in which case, upon such return
or cancellation, as the case may be, the Fundamental Change Purchase Notice with respect thereto shall be deemed to have been withdrawn.

 

(d)       Notwithstanding
the other provisions of this Article 3, the Company will not be required to make an offer to purchase the Securities upon a
Fundamental Change if a third party makes such an offer in the manner, at the times and otherwise in compliance with the
requirements in this Indenture and such third party purchases all Securities properly tendered and not validly withdrawn
under its offer.

 

    20 

     

    

 

 

Section 3.03       
Effect of Fundamental Change Purchase Notice. Upon
receipt by the Paying Agent of a Fundamental Change Purchase Notice specified in Section 3.02, the Holder of the Security in respect
of which such Fundamental Change Purchase Notice was given shall (unless such Fundamental Change Purchase Notice is withdrawn in
accordance with Section 3.04) thereafter be entitled to receive solely the Fundamental Change Purchase Price in cash with respect
to such Security (and any previously accrued and unpaid interest on such Security). Such Fundamental Change Purchase Price shall
be paid to such Holder, subject to receipt of funds by the Paying Agent, on the later of (x) the applicable Fundamental Change
Purchase Date (provided the conditions in Section 3.02 have been satisfied) and (y) the time of delivery or book-entry transfer
of such Security to the Paying Agent by the Holder thereof in the manner required by Section 3.02, subject in each case to extensions
to comply with applicable law.

 

Section 3.04       
Withdrawal of Fundamental Change Purchase Notice.
A Fundamental Change Purchase Notice may be withdrawn (in whole or in part) by means of a written notice of withdrawal delivered
to the Paying Agent in accordance with the Fundamental Change Company Notice at any time prior to the Fundamental Change Expiration
Time, specifying:

 

(1)       the
principal amount of the Securities with respect to which such notice of withdrawal is being submitted;

 

(2)       if
Physical Securities have been issued, the certificate numbers of the withdrawn Securities; and

 

(3)      the
principal amount, if any, of each Security that remains subject to the Fundamental Change Purchase Notice, which must be such that
the principal amount not to be purchased equals $1,000 or an integral multiple of $1,000 in excess thereof;

 

provided, however,
that if the Securities are Global Securities, the notice must comply with Applicable Procedures of the Depository.

 

The Paying Agent will
promptly return to the respective Holders thereof any Physical Securities with respect to which a Fundamental Change Purchase Notice
has been withdrawn in compliance with the provisions of this Section 3.04.

 

Section 3.05        Deposit
of Fundamental Change Purchase Price. Prior to 10:00 a.m., New York City time, on the Fundamental Change Purchase
Date, the Company shall deposit with the Paying Agent (or, if the Company or a Subsidiary or an Affiliate of either of them
is acting as the Paying Agent, shall segregate and hold in trust as provided herein) an amount of money (in immediately
available funds if deposited on such Business Day) sufficient to pay the Fundamental Change Purchase Price of all the
Securities or portions thereof that are to be purchased as of the Fundamental Change Purchase Date. If the Paying Agent holds
cash sufficient to pay the Fundamental Change Purchase Price of the Securities for which a Fundamental Change Purchase Notice
has been tendered and not withdrawn in accordance with this Indenture on the Fundamental Change Purchase Date, then as of
such Fundamental Change Purchase Date, (a) such Securities will cease to be Outstanding and interest will cease to accrue
thereon (whether or not book-entry transfer of such Securities is made or such Securities have been delivered to the Paying
Agent) and (b) all other rights of the Holders in respect thereof will terminate (other than the right to receive the
Fundamental Change Purchase Price upon delivery or book-entry transfer of such Securities).

 

    21 

     

    

 

Section 3.06       
Securities Purchased in Whole or in Part. Any Security
that is to be purchased, whether in whole or in part, shall be surrendered at the office of the Paying Agent (with, if the Company
or the Trustee so requires in the case of Physical Securities, due endorsement by, or a written instrument of transfer in form
satisfactory to the Company and the Trustee duly executed by, the Holder thereof or such Holder's attorney duly authorized in writing)
and the Company shall execute and the Trustee shall authenticate and deliver to the Holder of such Security, without service charge,
a new Security or Securities, of any authorized denomination as requested by such Holder in aggregate principal amount equal to,
and in exchange for, the portion of the principal amount of the Security so surrendered that is not purchased.

 

Section 3.07       
Covenant To Comply with Applicable Laws upon Purchase of Securities.
In connection with any offer to purchase Securities under Section 3.02, the Company shall, in each case if required by law, (i)
comply with Rule 13e-4, Rule 14e-1 and any other tender offer rules under the Exchange Act that may then be applicable, (ii) file
a Schedule TO or any other required schedule under the Exchange Act and (iii) otherwise comply with all federal and state securities
laws applicable to the Company in connection with such purchase offer, in each case, so as to permit the rights and obligations
under Section 3.02 to be exercised in the time and in the manner specified in Section 3.02.

 

Section 3.08       
Repayment to the Company. To the extent that the
aggregate amount of cash deposited by the Company pursuant to Section 3.05 exceeds the aggregate Fundamental Change Purchase Price
of the Securities or portions thereof that the Company is obligated to purchase as of the Fundamental Change Purchase Date, then,
following the Fundamental Change Purchase Date, the Paying Agent shall promptly return any such excess to the Company.

 

ARTICLE
4

CONVERSION

 

Section 4.01       
Right To Convert.

 

		(a)	Upon compliance with the provisions of this Indenture, at any time prior to the Close of Business
on the second Scheduled Trading Day immediately preceding the Maturity Date, the Holder of any Securities not previously repurchased
shall have the right, at such Holder’s option, to convert its Securities, or any portion thereof which is a multiple of $1,000,
into Common Stock, as provided in Section 4.03, by surrender of such Securities so to be converted in whole or in part, together
with any required funds, under the circumstances and in the manner described in this Article 4.

 

		(b)	Notwithstanding any other provision of the Securities or this Indenture, no Holder of Securities
will be entitled to receive Common Stock following conversion of such Securities to the extent that receipt of such Common Stock
would cause such Holder to exceed the ownership limits contained in the Company's charter. If any delivery of shares of Common
Stock owed to a Holder upon conversion of Securities is not made, in whole or in part, as a result of the limitations described
in this Section 4.01(b), the Company's obligation to make such delivery shall not be
extinguished and the Company shall deliver such shares as promptly as practicable after any such converting Holder gives notice
to the Company that such delivery would not result in it being the beneficial or constructive owner of more than 9.8% (by value
or number, whichever is more restrictive) of the shares of Common Stock or of the Company's Capital Stock, outstanding at such
time.

 

    22 

     

    

 

		(c)	A Security in respect of which a Holder has delivered a Fundamental Change Purchase Notice exercising
such Holder's right to require the Company to purchase such Security pursuant to Section 3.02 may be converted only if such Fundamental
Change Purchase Notice is properly withdrawn in accordance with, and within the time periods set forth in, Section 3.04.

 

Section 4.02       
Conversion Procedures.

 

		(a)	Each Security shall be convertible at the office of the Conversion Agent and, if applicable, in
accordance with the Applicable Procedures of the Depository.

 

		(b)	To exercise the conversion privilege with respect to a beneficial interest in a Global Security,
the Holder must complete the appropriate instruction form for conversion pursuant to the Depository's book-entry conversion program,
furnish appropriate endorsements and transfer documents if required by the Company or the Conversion Agent, and pay the funds,
if any, required by Section 4.02(f) and any taxes or duties if required pursuant to Section 4.02(g), and the Conversion Agent must
be informed of the conversion in accordance with the customary practice of the Depository.

 

To exercise the conversion
privilege with respect to any Physical Securities, the Holder of such Physical Securities shall:

 

(1)       complete
and manually sign a conversion notice in the form set forth in the Form of Notice of Conversion (the “Conversion Notice”)
or a facsimile of the Conversion Notice;

 

(2)       deliver
the Conversion Notice, which is irrevocable, and the Security to the Conversion Agent;

 

(3)       if
required, furnish appropriate endorsements and transfer documents,

 

(4)       if
required, make any payment required under Section 4.02(f); and

 

(5)       if
required, pay all transfer or similar taxes as set forth in Section 4.02(g).

 

If, upon conversion
of a Security, any shares of Common Stock are to be issued to a person other than the Holder of such Security, the related Conversion
Notice shall include such other person's name and address.

 

If a Security is subject
to a Fundamental Change Purchase Notice, such Security may not be converted unless such Fundamental Change Purchase Notice is withdrawn
in accordance with Section 3.04 hereof prior to the relevant Fundamental Change Expiration Time.

 

For any Security,
the first Business Day on which the Holder of such Security satisfies all of the applicable requirements set forth above with
respect to such Security and on which conversion of such Security is not otherwise prohibited under this Indenture shall be
the “Conversion Date” with respect to such Security.

 

    23 

     

    

 

Each conversion shall
be deemed to have been effected as to any such Securities (or portion thereof) surrendered for conversion at the Close of Business
on the applicable Conversion Date, and the person in whose name the certificate for any shares of Common Stock delivered upon conversion
is registered shall be treated as a stockholder of record as of the Close of Business on such Conversion Date.

 

(c)       Endorsement.
Any Securities surrendered for conversion shall, unless shares of Common Stock issuable on conversion are to be issued in the same
name as the registration of such Securities, be duly endorsed by, or be accompanied by instruments of transfer in form satisfactory
to the Company duly executed by, the Holder or its duly authorized attorney.

 

(d)       Physical
Securities. If any Securities in a denomination greater than $1,000 shall be surrendered for partial conversion, the Company
shall execute and the Trustee shall authenticate and deliver to the Holder of the Securities so surrendered, without charge, new
Securities in authorized denominations in an aggregate principal amount equal to the unconverted portion of the surrendered Securities.

 

(e)       Global
Securities. Upon the conversion of a beneficial interest in Global Securities, the Conversion Agent shall make a notation in
its records as to the reduction in the principal amount represented thereby. The Company shall notify the Trustee in writing of
any conversions of Securities effected through any Conversion Agent other than the Trustee.

 

(f)       Interest
Due Upon Conversion. If a Holder converts a Security after the Close of Business on a Regular Record Date but prior to the
Open of Business on the Interest Payment Date corresponding to such Regular Record Date, such Holder must accompany such Security
with an amount of cash equal to the amount of interest that will be payable on such Security on the corresponding Interest Payment
Date; provided, however, that a Holder need not make such payment (1) if the Conversion Date follows the Regular Record
Date immediately preceding the Maturity Date; (2) if the Company has specified a Fundamental Change Purchase Date that is
after a Regular Record Date and on or prior to the corresponding Interest Payment Date and the Holder converts its Security after
the Close of Business on such Regular Record Date and on or prior to the Open of Business on such Interest Payment Date; or
(3) to the extent of any overdue interest, if any overdue interest exists at the time of conversion with respect to such Security.

 

(g)       Taxes
Due Upon Conversion. If a Holder converts a Security, the Company will pay any documentary, stamp or similar issue or transfer
tax due on the issue of any shares of the Common Stock upon the conversion, unless the tax is due because the Holder requests that
any shares be issued in a name other than the Holder’s name, in which case the Holder will pay that tax.

 

(h)       Cash
Payments in Lieu of Fractional Shares. No fractional shares of Common Stock or scrip certificates representing fractional
shares shall be issued upon conversion of Securities. If more than one Security shall be surrendered for conversion at one
time by the same Holder, the number of full shares that shall be issuable upon conversion shall be computed on the basis of
the aggregate principal amount of the Securities (or specified portions thereof to the extent permitted hereby) so
surrendered. If any fractional share of Common Stock would be issuable upon the conversion of any Security or Securities, the
Company shall make a payment therefor in cash to the Holder of Securities equal to the product of (i) such fraction of a
share and (ii) the Last Reported Sale Price of the Common Stock on the relevant Scheduled Trading Day (or, if the Scheduled
Trading Day is not a Trading Day, the next following Trading Day).

 

    24 

     

    

 

Section
4.03        Settlement
Upon Conversion.

 

		(a)	Upon conversion of any Securities, subject to Sections 4.01, 4.02 and this Section 4.03, the Company
shall satisfy its obligation upon conversion (the “Conversion Obligation”) by delivery of the shares (and, if
applicable, payment of the cash) described under Section 4.03(b) below.

 

		(b)	Upon conversion of Securities, the Company shall deliver, in respect of each $1,000 principal amount
of Securities tendered for conversion in accordance with their terms:

 

(1)       a
number of shares of Common Stock equal to (a) (i) the aggregate principal amount of Securities to be converted divided by (ii)
$1,000, multiplied by (b) the applicable Conversion Rate on the date the converting Holder is treated as a record owner of the
Common Stock pursuant to the last paragraph of Section 4.02(b); and

 

(2)       an
amount in cash in lieu of any fractional shares of Common Stock as provided in Section 4.02(h).

 

		(c)	Delivery of the shares of Common Stock (and, if applicable, payment of the cash) pursuant to Section
4.03(b) shall be made by the Company on or prior to the second Business Day immediately following the Conversion Date to the holder
of a Security surrendered for conversion, or such holder's nominee or nominees, and the Company shall deliver to the Conversion
Agent or to such holder, or such holder's nominee or nominees, certificates or a book-entry transfer through the Depository for
the number of full shares of Common Stock to which such holder shall be entitled as part of such Conversion Obligation.

 

		(d)	Settlement of Accrued Interest and Deemed Payment of Principal. If a Holder converts a Security,
the Company will not adjust the Conversion Rate to account for any accrued and unpaid interest on such Security, and the Company's
delivery of shares of Common Stock (and cash in lieu of fractional shares, if any) into which a Security is convertible will be
deemed to satisfy and discharge in full the Company's obligation to pay the principal of, and accrued and unpaid interest, if any,
on, such Security to, but excluding, the Conversion Date; provided, however, that if a Holder converts a Security after
a Regular Record Date and prior to the Open of Business on the corresponding Interest Payment Date, the Company will still be obligated
to pay the interest due on such Interest Payment Date to the Holder of such Security on such Regular Record Date (provided the
Holder makes the interest payment upon conversion if so required by Section 4.02(f)).

 

As a result,
except as otherwise provided in the proviso to the immediately preceding sentence, any accrued and unpaid interest with
respect to a converted Security will be deemed to be paid in full rather than cancelled, extinguished or forfeited. In no
event will a Holder be entitled to receive any dividend or other distribution with respect to any Common Stock issued on
conversion of such Holder's Securities if the applicable Conversion Date is after the Regular Record Date for such dividend
or distribution.

 

    25 

     

    

 

		(e)	Notices. Whenever a Conversion Date occurs with respect to a Security, the Conversion Agent
will, as promptly as possible, and in no event later than the Business Day immediately following such Conversion Date, deliver
to the Company and the Trustee, if it is not then the Conversion Agent, notice that a Conversion Date has occurred, which notice
will state such Conversion Date, the principal amount of Securities converted on such Conversion Date and the names of the Holders
that converted Securities on such Conversion Date.

 

Section 4.04       
Adjustment of Conversion Rate. The Conversion Rate
will be adjusted as described in this Section 4.04, except that the Company shall not make any adjustment to the Conversion Rate
if Holders participate (other than in the case of a share split or share combination), at the same time and upon the same terms
as holders of the Common Stock and as a result of holding the Securities, in any of the transactions described below without having
to convert their Securities, as if they held a number of shares of Common Stock equal to the applicable Conversion Rate, multiplied
by the principal amount (expressed in thousands) of Securities held by such Holder.

 

		(a)	If the Company exclusively issues shares of Common Stock as a dividend or distribution on all or
substantially all shares of the Common Stock, or if the Company effects a share split or share combination, the Conversion Rate
will be adjusted based on the following formula:

  

 

 

where,

 

CR0      =      the
Conversion Rate in effect immediately prior to the Close of Business on the record date of such dividend or distribution, or immediately
prior to the Open of Business on the effective date of such share split or share combination, as applicable;

 

CR1      =      the
Conversion Rate in effect immediately after the Close of Business on such record date or immediately after the Open of Business
on such effective date;

 

OS0      =      the
number of shares of Common Stock outstanding immediately prior to the Close of Business on such record date or immediately prior
to the Open of Business on such effective date, as applicable, before giving effect to such dividend, distribution, share split
or share combination; and

 

OS1      =      the
number of shares of Common Stock outstanding immediately after giving effect to such dividend, distribution, share split or share
combination, as applicable.

 

Any adjustment
made pursuant to this Section 4.04(a) shall become effective immediately after the Close of Business on the record date for
such dividend or distribution, or immediately after the Open of Business on the effective date for such share split or share
combination. If any dividend or distribution of the type described in this Section 4.04(a) is declared but not so paid or
made, the Conversion Rate shall be immediately readjusted, effective as of the date the Board of Directors determines not to
pay such dividend or distribution to the Conversion Rate that would then be in effect if such dividend or distribution had
not been declared.

 

    26 

     

    

 

		(b)	If the Company issues to all or substantially all holders of the Common Stock any rights, options
or warrants entitling them, for a period of not more than forty-five (45) calendar days after the record date of such issuance,
to subscribe for or purchase shares of the Common Stock, at a price per share less than the average of the Last Reported Sale Prices
of the Common Stock for the 10 consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the
date of announcement of such issuance, the Conversion Rate will be increased based on the following formula:

  

 

 

where,

 

CR0      =      the
Conversion Rate in effect immediately prior to the Close of Business on the record date for such issuance;

 

CR1      =      the
Conversion Rate in effect immediately after the Close of Business on such record date;

 

OS0      =      the
number of shares of Common Stock outstanding immediately prior to the Close of Business on such record date;

 

X      =          the total
number of shares of Common Stock issuable pursuant to such rights, options or warrants; and

 

Y      =           the number
of shares of Common Stock equal to the aggregate price payable to exercise such rights, options or warrants divided by the
average of the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period ending on, and including,
the Trading Day immediately preceding the date of announcement of the issuance of such rights, options or warrants.

 

Any increase made
under this Section 4.04(b) will be made successively whenever any such rights, options or warrants are issued and shall
become effective immediately after the Open of Business on the record date for such issuance. To the extent that such rights,
options or warrants are not exercised prior to their expiration or shares of Common Stock are not delivered upon the
expiration of such rights, options or warrants, the Conversion Rate shall be readjusted to the Conversion Rate that would
then be in effect had the increase with respect to the issuance of such rights, options or warrants been made on the basis of
delivery of only the number of shares of Common Stock actually delivered. If such rights, options or warrants are not so
issued, or if such rights, options or warrants are not exercised prior to their expiration, the Conversion Rate shall be
decreased to be the Conversion Rate that would then be in effect if such record date for such issuance had not occurred.

 

    27 

     

    

 

For purposes of this
Section 4.04(b), in determining whether any rights, options or warrants entitle the holders of the Common Stock to subscribe for
or purchase shares of the Common Stock at a price per share less than such average of the Last Reported Sale Prices of the Common
Stock for the 10 consecutive Trading Day period ending on the Trading Day immediately preceding the date of announcement for such
issuance, and in determining the aggregate offering price of such shares of the Common Stock, there shall be taken into account
any consideration received by the Company for such rights, options or warrants and any amount payable on exercise or conversion
thereof, the value of such consideration, if other than cash, to be determined by the Board of Directors.

 

		(c)	If the Company distributes shares of its Capital Stock, evidences of its indebtedness, other assets
or property of the Company or rights, options or warrants to acquire its Capital Stock or other securities, to all or substantially
all holders of the Common Stock, excluding:

 

(1)       dividends
or distributions, rights options or warrants as to which an adjustment was effected pursuant to Section 4.04(a) hereof or Section
4.04(b) hereof;

 

(2)       dividends
or distributions paid exclusively in cash; and

 

(3)       Spin-Offs
described in Section 4.04(c);

 

then the Conversion
Rate shall be increased based on the following formula:

 

 

 

where,

 

CR0      =      the Conversion
Rate in effect immediately prior to the Close of Business on the record date for such distribution;

 

CR1      =      the Conversion
Rate in effect immediately after the Close of Business on such record date;

 

SP0      =       the average
of the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period ending on, and including, the Trading
Day immediately preceding the Ex-Dividend Date for such distribution; and

 

FMV      =    the fair market
value (as determined by the Board of Directors) of the shares of the Company’s Capital Stock, evidences the
Company’s indebtedness, other assets, or property of the Company or rights, options or warrants to acquire the
Company’s Capital Stock or other securities distributed with respect to each outstanding share of the Common Stock on
the Ex-Dividend Date for such distribution.

 

    28 

     

    

 

provided that
if “FMV” (as defined above) is equal to or greater than “SP0” (as defined above), then in lieu
of the foregoing increase, each Holder of a Security shall receive, in respect of each $1,000 principal amount of a Security it
holds, at the same time and upon the same terms as holders of the Common Stock, the amount and kind of the Company’s Capital
Stock, evidences of the Company’s indebtedness, other assets or property of the Company or rights, options or warrants to
acquire the Company’s Capital Stock or other securities that such Holder would have received as if such Holder owned a number
of shares of Common Stock equal to the Conversion Rate in effect on the record date for the distribution.

 

Any increase made under
this portion of this Section 4.04(c) will become effective immediately after the Close of Business on the record date for such
distribution. If such distribution is not so paid or made, the Conversion Rate shall be decreased to be the Conversion Rate that
would then be in effect if such dividend or distribution had not been declared.

 

With respect to an
adjustment pursuant to this Section 4.04(c) where there has been a payment of a dividend or other distribution on the Common Stock
of shares of Capital Stock of any class or series, or similar equity interest, of or relating to a Subsidiary of the Company or
other business unit of the Company, and such Capital Stock or similar equity interest is listed or quoted (or will be listed or
quoted upon the consummation of the distribution) on a United States national securities exchange (a “Spin-Off”),
the Conversion Rate will be increased based on the following formula:

 

 

 

where,

 

CR0      =      the
Conversion Rate in effect immediately prior to the Close of Business on the record date for such Spin-Off;

 

CR1      =      the
Conversion Rate in effect immediately after the Close of Business on the record date for such Spin-Off;

 

FMV0      =  the
average of the Last Reported Sale Prices of the Capital Stock or similar equity interest distributed to holders of Common Stock
applicable to one share of Common Stock over the first ten (10) consecutive Trading Day period after, and including, the Ex-Dividend
Date of the Spin-Off (the “Valuation Period”); and

 

MP0      =     the
average of the Last Reported Sale Prices of Common Stock over the Valuation Period.

 

The adjustment to
the applicable Conversion Rate under the preceding paragraph of this Section 4.04(c) will be made immediately after the Open
of Business on the day after the last Trading Day of the Valuation Period, but will be given effect as of the Open of
Business on the record date for the Spin-Off. For purposes of determining the applicable Conversion Rate, in respect of any
conversion during the 10 Trading Days commencing on the Ex-Dividend Date for any Spin-Off, references within the portion of
this Section 4.04(c) related to “Spin-Offs” to 10 Trading Days shall be deemed replaced with such lesser number
of Trading Days as have elapsed from, and including, the Ex-Dividend Date for such Spin- Off to, and including, the relevant
Conversion Date.

 

    29 

     

    

 

For purposes of the
second adjustment set forth in this Section 4.04(c), (i) the Last Reported Sale Price of any Capital Stock or similar equity interest
shall be calculated in a manner analogous to that used to calculate the Last Reported Sale Price of the Common Stock in the definition
of “Last Reported Sale Price” set forth in Section 1.01 hereof, (ii) whether a day is a Trading Day (and whether a
day is a Scheduled Trading Day and whether a Market Disruption Event has occurred) for such Capital Stock or similar equity interest
shall be determined in a manner analogous to that used to determine whether a day is a Trading Day (or whether a day is a Scheduled
Trading Day and whether a Market Disruption Event has occurred) for the Common Stock, and (iii) whether a day is a Trading Day
to be included in a Valuation Period will be determined based on whether a day is a Trading Day for both the Common Stock and such
Capital Stock or similar equity interest.

 

Subject to Section
4.04(f), for the purposes of this Section 4.04(c), rights, options or warrants distributed by the Company to all holders of the
Common Stock entitling them to subscribe for or purchase shares of the Company’s Capital Stock (either initially or under
certain circumstances), which rights, options or warrants, until the occurrence of a specified event or events (a “Trigger
Event”): (1) are deemed to be transferred with such shares of Common Stock; (2) are not exercisable; and (3)
are also issued in respect of future issuances of Common Stock, shall be deemed not to have been distributed for purposes of this
Section 4.04(c), (and no adjustment to the Conversion Rate under this Section 4.04(c) will be required) until the occurrence of
the earliest Trigger Event, whereupon such rights, options or warrants shall be deemed to have been distributed and an appropriate
adjustment (if any is required) to the Conversion Rate shall be made under this Section 4.04(c). If any such right, option or warrant,
distributed prior to the Issue Date are subject to events, upon the occurrence of which such rights, options or warrants become
exercisable to purchase different securities, evidences of indebtedness or other assets, then the date of the occurrence of any
and each such event shall be deemed to be the date of distribution and record date of such deemed distribution (in which case the
original rights, options or warrants shall be deemed to terminate and expire on such date without exercise by any of the holders).
In addition, in the event of any distribution or deemed distribution of rights, options or warrants, or any Trigger Event or other
event (of the type described in the preceding sentence) with respect thereto that was counted for purposes of calculating a distribution
amount for which an adjustment to the Conversion Rate under this Section 4.04(c) was made, (1) in the case of any such rights,
options or warrants which shall all have been redeemed or purchased without exercise by any holders thereof, upon such final redemption
or purchase (x) the Conversion Rate shall be readjusted as if such rights, options or warrants had not been issued and (y) the
Conversion Rate shall then again be readjusted to give effect to such distribution, deemed distribution or Trigger Event, as the
case may be, as though it were a cash distribution, equal to the per share redemption or purchase price received by holders of
Common Stock with respect to such rights, options or warrants (assuming each such holder had retained such rights, options or warrants),
made to all holders of Common Stock as of the date of such redemption or purchase, and (2) in the case of such rights, options
or warrants which shall have expired or been terminated without exercise by any holders thereof, the Conversion Rate shall be readjusted
as if such rights and warrants had not been issued.

 

    30 

     

    

 

For purposes of Section
4.04(a) hereof, Section 4.04(b) hereof and this Section 4.04(c), if any dividend or distribution to which this Section 4.04(c)
applies includes one or both of:

 

(1)       a
dividend or distribution of shares of Common Stock to which Section 4.04(a) hereof also applies (the “Clause A Distribution”);
or

 

(2)       a
dividend or distribution of rights, options or warrants to which Section 4.04(b) hereof also applies (the “Clause B Distribution”),

 

then (i) such dividend
or distribution, other than the Clause A Distribution and the Clause B Distribution, shall be deemed to be a dividend or distribution
to which this Section 4.04(c) applies (the “Clause C Distribution”) and any Conversion Rate adjustment required
to be made under this Section 4.04(c) with respect to such Clause C Distribution shall be made, (ii) the Clause B Distribution,
if any, shall be deemed to immediately follow the Clause C Distribution and any Conversion Rate adjustment required by Section
4.04(b) hereof with respect thereto shall then be made, except that, if determined by the Company, (A) the “record date”
of the Clause B Distribution and the Clause A Distribution, if any, shall be deemed to be the record date of the Clause C Distribution
and (B) any shares of Common Stock included in the Clause A Distribution or the Clause B Distribution shall not be deemed to be
 “outstanding immediately prior to the Open of Business on such record date” within the meaning of Section 4.04(b) hereof,
and (iii) the Clause A Distribution, if any, shall be deemed to immediately follow the Clause C Distribution or the Clause B Distribution,
as the case may be, except that, if determined by the Company, (A) the “record date” of the Clause A Distribution and
the Clause B Distribution, if any, shall be deemed to be the record date of the Clause C Distribution, and (B) any shares of Common
Stock included in the Clause A distribution shall not be deemed to be “outstanding immediately prior to the Open of Business
on such record date or such effective date” within the meaning of Section 4.04(a) hereof.

 

(d)       If
any cash dividend or distribution is made to all or substantially all holders of the Common Stock to the extent that the aggregate
of all such cash dividends or distributions paid in any quarter exceeds the dividends threshold amount (the “DTA”)
for such quarter, the Conversion Rate shall be adjusted based on the following formula:

 

 

 

where,

 

CR0       =     the
Conversion Rate in effect immediately prior to the Close of Business on the record date for such dividend or distribution;

 

CR1       =     the
Conversion Rate in effect immediately after the Close of Business on the record date for such dividend or distribution;

 

SP0      =       the
Last Reported Sale Price of the Common Stock on the Trading Day immediately preceding the Ex-Dividend Date for such dividend or
distribution;

 

    31 

     

    

 

DTA      =    the dividend
threshold amount, which shall initially be $0.17 per quarter; and

 

C       =          the amount
in cash per share that the Company distributes to holders of the Common Stock.

 

The DTA is subject
to adjustment on an inversely proportional basis whenever the Conversion Rate is adjusted, other than adjustments made pursuant
to this Section 4.04(d). If an adjustment is required to be made as set forth in this Section 4.04(d) as a result of a distribution
that is not a regular quarterly dividend, the DTA will be deemed to be zero with respect to that particular adjustment.

 

If “C”
(as defined above) is equal to or greater than “SP0” (as defined above), in lieu of the foregoing increase,
each Holder shall receive, for each $1,000 principal amount of Securities it holds, at the same time and upon the same terms as
holders of shares of the Common Stock, the amount of cash that such Holder would have received if such Holder had owned a number
of shares of Common Stock equal to the Conversion Rate on the record date for such cash dividend or distribution. Such increase
shall become effective immediately after the Close of Business on the record date for such dividend or distribution. If such dividend
or distribution is not so paid, the Conversion Rate shall be decreased to be the Conversion Rate that would then be in effect if
such dividend or distribution had not been declared.

 

(e)       If
the Company or any of its Subsidiaries make a payment in respect of a tender offer or exchange offer for the Common Stock, to the
extent that the cash and value of any other consideration included in the payment per share of the Common Stock exceeds the Last
Reported Sale Price of the Common Stock on the Trading Day next succeeding the last date on which tenders or exchanges may be made
pursuant to such tender or exchange offer (the “Offer Expiration Date”), the Conversion Rate shall be increased
based on the following formula:

 

 

 

where,

 

CR0      =     the
Conversion Rate in effect immediately prior to the Close of Business on the Offer Expiration Date;

 

CR1     =     the
Conversion Rate in effect immediately after the Close of Business the Offer Expiration Date;

 

AC     =        the aggregate
value of all cash and any other consideration (as determined by the Board of Directors) paid or payable for shares of Common Stock
purchased in such tender offer or exchange offer;

 

OS0      =      the
number of shares of Common Stock outstanding immediately prior to the expiration time of the tender or exchange offer on the Offer
Expiration Date (prior to giving effect to the purchase of all shares accepted for purchase or exchange in such tender offer or
exchange offer);

 

    32 

     

    

 

OS1      =      the
number of shares of Common Stock outstanding immediately after the expiration time of the tender or exchange offer on the Offer
Expiration Date (after giving effect to the purchase of all shares accepted for purchase or exchange in such tender or exchange
offer); and

 

SP1      =       the
average of the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period commencing on, and including,
the Trading Day next succeeding the Offer Expiration Date.

 

The adjustment to the
applicable Conversion Rate under the preceding paragraph of this Section 4.04(e) will be given effect at the Open of Business on
the Trading Day next succeeding the Offer Expiration Date. For purposes of determining the applicable Conversion Rate, in respect
of any conversion during the 10 Trading Days commencing on the Trading Day next succeeding the Offer Expiration Date, references
within this Section 4.04(e) to 10 Trading Days shall be deemed replaced with such lesser number of Trading Days as have elapsed
from, and including, the Trading Day next succeeding the Offer Expiration Date to, and including, the relevant Conversion Date.

 

		(f)	Poison Pill. Whenever a Holder converts a Security, to the extent that the Company has a
rights plan in effect, the Holder converting such Security will receive, in addition to any shares of Common Stock otherwise received
in connection with such conversion, the rights under the rights plan unless, prior to conversion the rights have expired, terminated
or been redeemed or unless the rights have separated from the Common Stock, in which case, and only in such case, the Conversion
Rate will be adjusted at the time of separation as if the Company distributed to all holders of the Common Stock, shares of Capital
Stock, evidences of indebtedness, assets, property, rights, options or warrants as described in Section 4.04(c) hereof, subject
to readjustment in the event of the expiration, termination or redemption of such rights.

 

		(g)	Limitation on Adjustments. Except as stated in this Section 4.04, the Company will not adjust
the Conversion Rate for the issuance of shares of Common Stock or any securities convertible into or exchangeable for shares of
Common Stock or the right to purchase shares of the Common Stock or such convertible or exchangeable securities. If, however, the
application of the formulas in Sections 4.04(a) through (e) hereof would result in a decrease in the Conversion Rate, then, except
to the extent of any readjustment to the Conversion Rate, no adjustment to the Conversion Rate will be made (other than as a result
of a reverse share split, share combination or readjustment).

 

In addition, notwithstanding
anything to the contrary herein, the Conversion Rate will not be adjusted:

 

(1)       on
account of stock repurchases that are not tender offers referred to in Section 4.04(e) hereof, including structured or derivative
transactions, or transactions pursuant to a stock repurchase program approved by the Board of Directors or otherwise;

 

(2)       upon
the issuance of any shares of Common Stock pursuant to any present or future plan providing for the reinvestment of dividends or
interest payable on the Company’s securities and the investment of additional optional amounts in shares of Common Stock
under any plan;

 

    33 

     

    

 

(3)       upon
the issuance of any shares of Common Stock or options or rights to purchase those shares pursuant to any present or future employee,
director or consultant benefit plan, program or agreement (including issuances to Company directors, officers and employees pursuant
to any such plan, program or agreement) of or assumed by the Company or any of its Subsidiaries;

 

(4)       upon
the issuance of any shares of Common Stock pursuant to any option, warrant, right or exercisable, exchangeable or convertible security
not described in the preceding clause (3) and outstanding as of the date the Securities were first issued;

 

(5)       for
a change in the par value of the Common Stock;

 

(6)       for
accrued and unpaid interest on the Securities, if any; or

 

(7)       for
an event otherwise requiring an adjustment under this Indenture if such event is not consummated.

 

		(h)	For purposes of this Section 4.04, the number of shares of Common Stock at any time outstanding
shall not include shares held in the treasury of the Company so long as the Company does not pay any dividend or make any distribution
on shares of Common Stock held in the treasury of the Company, but shall include shares issuable in respect of scrip certificates
issued in lieu of fractions of shares of Common Stock.

 

		(i)	Withholding on Adjustments. If, in connection with any adjustment to the Conversion Rate
as set forth in this Section 4.04 a Holder shall be deemed for U.S. federal tax purposes to have received a distribution, the Company
may set off any withholding tax it reasonably believes it is required to collect with respect to any such deemed distribution against
cash payments of interest in accordance with the provisions of Section 2.04 hereof or from cash and Common Stock, if any, otherwise
deliverable to a Holder upon a conversion of Securities in accordance with the provisions of Section 4.03 hereof or repurchase
of a Security in accordance with the provisions of Article 3 hereof.

 

Section
4.05        Adjustments
of Prices and Voluntary Adjustments.

 

		(a)	Adjustments of Prices. Whenever any provision of this Indenture requires the Company to
calculate the Last Reported Sale Prices or any function thereof over a span of multiple days, the Company will make appropriate
adjustments to each to account for any adjustment to the Conversion Rate that becomes effective, or any event requiring an adjustment
to the Conversion Rate where the Effective Date, Record Date or Offer Expiration Date of the event occurs, at any time during the
period when such Last Reported Sale Prices or function thereof is to be calculated.

 

		(b)	Voluntary Adjustments. To the extent permitted by applicable law and the rules of the New
York Stock Exchange or any other securities exchange or market on which the Common Stock is then listed, the Company is permitted
to increase the Conversion Rate of the Securities by any amount for a period of at least 20 Business Days if the Board of Directors
determines that such increase would be in the Company's best interest. The Company may also (but is not required to) increase the Conversion Rate to
avoid or diminish income tax to holders of Common Stock or rights to purchase shares of Common Stock in connection with a dividend
or distribution of shares (or rights to acquire shares) or similar event.

 

    34 

     

    

 

Section
4.06        Adjustment
to Conversion Rate Upon Conversion in Connection with a Make-Whole Fundamental Change .

 

		(a)	Increase in the Conversion Rate. If a Make-Whole Fundamental Change occurs and a Holder
elects to convert its Securities in connection with such Make-Whole Fundamental Change, the Company shall, under certain circumstances,
increase the Conversion Rate for the Securities so surrendered for conversion by a number of additional shares of Common Stock
(the “Additional Shares”), as described in this Section 4.06. A conversion of Securities shall be deemed for
these purposes to be “in connection with” a Make-Whole Fundamental Change if the relevant Conversion Notice is received
by the Conversion Agent during the period from, and including, the Effective Date of the Make-Whole Fundamental Change up to, and
including, the Close of Business on the Business Day immediately prior to the related Fundamental Change Purchase Date or, if such
Make-Whole Fundamental Change is not a Fundamental Change, the 35th Business Day immediately following the Effective Date for such
Make-Whole Fundamental Change.

 

		(b)	Determining the Number of Additional Shares. The number of Additional Shares, if any, by
which the Conversion Rate will be increased for a Holder that converts its Securities in connection with a Make-Whole Fundamental
Change shall be determined by reference to the table attached as Schedule A hereto, based on the date on which the Make-Whole Fundamental
Change occurs or becomes effective (the “Effective Date”) and the price (the “Stock Price”)
paid (or deemed paid) per share of the Common Stock in the Make-Whole Fundamental Change. If the holders of the Common Stock receive
only cash in a Make-Whole Fundamental Change described in clause (2) of the definition of Fundamental Change, the Stock Price shall
be the cash amount paid per share. Otherwise, the Stock Price shall be the average of the Last Reported Sale Prices of the Common
Stock over the ten consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the Effective
Date of the Make-Whole Fundamental Change.

 

		(c)	Interpolation and Limits. The exact Stock Prices and Effective Dates may not be set forth
in the table in Schedule A, in which case:

 

(1)       If
the Stock Price is between two Stock Prices in the table or the Effective Date is between two Effective Dates in the table, the
number of Additional Shares shall be determined by a straight-line interpolation between the number of Additional Shares set forth
for the higher and lower Stock Prices and the earlier and later Effective Dates, as applicable, based on a 365-day year.

 

(2)       If
the Stock Price is greater than $9.00 per share (subject to adjustment in the same manner as the Stock Prices set forth in the
column headings of the table in Schedule A pursuant to Section 4.06(d)(4) hereof), the Conversion Rate shall not be increased.

 

    35 

     

    

 

(3)       If
the Stock Price is less than $6.15 per share (subject to adjustments in the same manner as the Stock Prices set forth in the column
headings of the table in Schedule A pursuant to Section 4.06(d)(4) hereof), the Conversion Rate shall not be increased.

 

Notwithstanding the
foregoing, in no event will the Conversion Rate be increased on account of a Make-Whole Fundamental Change to exceed 162.6016 shares
of Common Stock per $1,000 principal amount of Securities, subject to adjustments in the same manner as the Conversion Rate is
required to be adjusted as set forth in Section 4.04 hereof.

 

(4)       The
Stock Prices set forth in the column headings of the table in Schedule A hereto shall be adjusted as of any date on which
the Conversion Rate of the Securities is otherwise required to be adjusted. The adjusted Stock Prices shall equal the Stock Prices
applicable immediately prior to such adjustment, multiplied by a fraction, the numerator of which is the Conversion Rate
immediately prior to such adjustment giving rise to the Stock Price adjustment and the denominator of which is the Conversion Rate
as so adjusted. The number of Additional Shares set forth in such table shall be adjusted in the same manner and at the same time
as the Conversion Rate is required to be adjusted as set forth in Section 4.04.

 

(5)       Notices.
The Company shall notify the Trustee and the Holders of the Effective Date of any Make Whole Fundamental Change announcing such
Effective Date no later than five Business Days after such Effective Date. Such notice shall be sent by first class mail or, in
the case of any Global Securities, in accordance with the procedures of the Depository for providing notices. Simultaneously with
providing such notice, the Company shall publish this information in a newspaper of general circulation in The City of New York
or publish the information on the Company’s website or through such other public medium as the Company may use at that time.

 

Section
4.07        Effect
of Recapitalization, Reclassification, Consolidation, Merger or Sale.

 

		(a)	Merger Events. In the case of:

 

(1)       any
recapitalization, reclassification or change of the Common Stock (other than a change in par value, or from par value to no par
value, or from no par value to par value, or as a result of a split, subdivision or combination for which an adjustment was made
pursuant to Section 4.04(a) hereof);

 

(2)       any
consolidation, merger or combination involving the Company;

 

(3)       any
sale, lease or other transfer to a third party of the consolidated assets of the Company and its Subsidiaries substantially as
an entirety; or

 

(4)       any
statutory share exchange;

 

    36 

     

    

 

and, in each
case, as a result of which the Common Stock would be converted into, or exchanged for, stock, other securities, other
property or assets (including cash or any combination thereof) (any such event, a “Merger Event,” any such
stock, other securities, other property or assets, “Reference Property,” and the amount of kind of
Reference Property that a holder of one share of Common Stock (i) is entitled to receive in the applicable Merger Event or
(ii) if as a result of the applicable Merger Event, each share of Common Stock is converted into the right to receive more
than a single type of consideration (determined based in part upon any form of stockholder election), the per-share of Common
Stock weighted average of the types and amounts of Reference Property received by the holders of Common Stock that
affirmatively make such an election, a “ Unit of Reference Property”) then, at the effective time of such
Merger Event, the right to convert each $1,000 principal amount of Securities into a number of shares of the Common Stock
equal to the applicable Conversion Rate will, without the consent of the Holders, be changed into a right to convert each
$1,000 principal amount of Securities into a number of Units of Reference Property equal to the applicable Conversion Rate
and, prior to or at the effective time of such Merger Event, the Company or the successor or purchasing Person, as the case
may be, shall execute with the Trustee a supplemental indenture (which shall comply with the Trust Indenture Act as in force
at the date of execution of such supplemental indenture) providing for such change in the right to convert each $1,000
principal amount of Securities. With respect to any such Reference Property, the Last Reported Sale Price will, to the extent
reasonably possible, be calculated based on the value of a Unit of Reference Property and the definitions of Trading Day and
Market Disruption Event shall be determined by reference to the components of a Unit of Reference Property.

 

If the Merger Event
causes the Common Stock to be converted into, or exchanged for, the right to receive more than a single type of consideration (determined
based in part upon any form of stockholder election) as contemplated by the preceding paragraph such that a Unit of Reference Property
is comprised of the per-share of Common Stock weighted average of the types and amounts of consideration received by the holders
of the Common Stock in the Merger Event that affirmatively make such an election, the Company shall notify Holders of the weighted
average as soon as practicable after such determination is made.

 

The Company shall not
become a party to any Merger Event unless its terms are consistent with this Section 4.07. Such supplemental indenture described
in the second immediately preceding paragraph shall provide for adjustments which shall be as nearly equivalent to the adjustments
provided for in this Article 4 in the judgment of the Board of Directors or the board of directors of the successor Person. If,
in the case of any such Merger Event, the Reference Property receivable thereupon by a holder of Common Stock includes shares of
stock, securities or other property or assets (including cash or any combination thereof) of a Person other than the successor
or purchasing Person, as the case may be, in such Merger Event, then such supplemental indenture shall also be executed by such
other Person and shall contain such additional provisions to protect the interests of the Holders of the Securities as the Board
of Directors shall reasonably consider necessary.

 

		(b)	Notice of Supplemental Indentures. The Company shall cause notice of the execution of such
supplemental indenture to be mailed to each Holder, at the address of such Holder as it appears on the register of the Securities
maintained by the Security Registrar, within 20 days after execution thereof. Failure to deliver such notice shall not affect the
legality or validity of such supplemental indenture. The above provisions of this Section 4.07 shall similarly apply to successive
Merger Events and the provisions of this Section 4.07 and Article IX  of the Base Indenture (as modified
by Article 8 of this Supplemental Indenture) shall apply to any such successive Merger Events.

 

    37 

     

    

 

Section
4.08        Stock
Issued Upon Conversion.

 

		(a)	Reservation of Shares. To the extent necessary to satisfy its obligations under this Indenture,
prior to issuing any shares of Common Stock, the Company will reserve out of its authorized but unissued shares of Common Stock
a sufficient number of shares of Common Stock to permit the conversion of the Securities.

 

		(b)	Certain other Covenants. The Company covenants that all shares of Common Stock that may
be issued upon conversion of Securities shall be newly issued shares or treasury shares, shall be duly authorized, validly issued,
fully paid and non-assessable and shall be free from preemptive rights and free from any tax, lien or charge (other than those
created by the Holder or due to a change in registered owner).

 

		(c)	Stock Transfer Agent. Equiniti Trust Company is, as of the date of the this Supplemental
Indenture, the Stock Transfer Agent for the Common Stock and the Company shall notify the Trustee if the Stock Transfer Agent for
the Common Stock is changed. The Company and the Trustee (as Conversion Agent) agree to cooperate with the Stock Transfer Agent
for the Common Stock in connection with any conversions of the Securities.

 

The Company shall list
or cause to have quoted any shares of Common Stock to be issued upon conversion of Securities on each national securities exchange
or over-the-counter or other domestic market on which the Common Stock is then listed or quoted.

 

Section 4.09       
Responsibility of Trustee. The Trustee and any Conversion
Agent shall not at any time be under any duty or responsibility to any Holder of Securities to determine or calculate the Conversion
Rate (or any adjustments thereto), to determine whether any facts exist which may require any adjustment of the Conversion Rate,
or to confirm the accuracy of any such adjustment when made or the appropriateness of the method employed, or herein or in any
supplemental indenture provided to be employed, in making the same. The Trustee and any other Conversion Agent shall not be accountable
with respect to the validity or value (or the kind or amount) of any shares of Common Stock or of any other securities or property
that may at any time be issued or delivered upon the conversion of any Securities; and the Trustee and the Conversion Agent
make no representations with respect thereto. Neither the Trustee nor any Conversion Agent shall be responsible for any failure
of the Company to issue, transfer or deliver any shares of Common Stock or stock certificates or other securities or property or
cash upon the surrender of any Securities for the purpose of conversion or to comply with any of the duties, responsibilities or
covenants of the Company contained in this Article 4. The rights, privileges, protections, immunities and benefits given to the
Trustee, including without limitation its right to be compensated, reimbursed, and indemnified, are extended to, and shall be enforceable
by, the Trustee in each of its capacities hereunder, including its capacity as Conversion Agent.

 

    38 

     

    

 

Section
4.10        Notice
to Holders.

 

		(a)	Notice to Holders Prior to Certain Actions. The Company shall deliver notices of the events
specified below at the times specified below and containing the information specified below unless,
in each case, (i) pursuant to this Indenture, the Company is already required to deliver notice of such event containing at least
the information specified below at an earlier time or, (ii) the Company, at the time it is required to deliver a notice, does
not have knowledge of all of the information required to be included in such notice, in which case, the Company shall (A) deliver
notice at such time containing only the information that it has knowledge of at such time (if it has knowledge of any such information
at such time), and (B) promptly upon obtaining knowledge of any such information not already included in a notice delivered by
the Company, deliver notice to each Holder containing such information. In each case, the failure by the Company to give such
notice, or any defect therein, shall not affect the legality or validity of such event. Any notices sent to Holders shall also
be sent to the Trustee.

 

		(b)	Issuances, Distributions, and Dividends and Distributions. If the Company (A) announces
any issuance of any rights, options or warrants that would require an adjustment in the Conversion Rate pursuant to Section 4.04(b)
hereof; (B) authorizes any distribution that would require an adjustment in the Conversion Rate pursuant to Section 4.04(c)
hereof (including any separation of rights from the Common Stock described in Section 4.04(g) hereof); or (C) announces any
dividend or distribution that would require an adjustment in the Conversion Rate pursuant to Section 4.04(d) hereof, then the Company
shall deliver to the Holders, as promptly as possible, but in any event at least 15 calendar days prior to the applicable record
date, notice describing such issuance, distribution, dividend or distribution, as the case may be, and stating the expected Ex-Dividend
Date and record date for such issuance, distribution, dividend or distribution, as the case may be. In addition, the Company shall
deliver to the Holders notice if the consideration included in such issuance, distribution, dividend or distribution, or the Ex-
Dividend Date or record date of such issuance, distribution, dividend or distribution, as the case may be, changes.

 

		(c)	Voluntary Increases. If the Company increases the Conversion Rate pursuant to Section 4.05(b),
the Company shall deliver notice to the Holders at least 15 calendar days prior to the date on which such increase will become
effective, which notice shall state the date on which such increased will become effective and the amount by which the Conversion
Rate will be increased.

 

		(d)	Dissolutions, Liquidations and Winding-Ups. If there is a voluntary or involuntary dissolution,
liquidation or winding-up of the Company, the Company shall deliver notice to the Holders at promptly as possible, but in any event
at least 15 calendar days prior to the earlier of (i) the date on which such dissolution, liquidation or winding-up, as the case
may be, is expected to become effective or occur, and (ii) the date as of which it is expected that holders of Common Stock of
record shall be entitled to exchange their Common Stock for securities or other property deliverable upon such dissolution, liquidation
or winding-up, as the case may be, which notice shall state the expected effective date and record date for such event, as applicable,
and the amount and kind of property that a holder of one share of the Common Stock is expected to be entitled, or may elect, to
receive in such event. The Company shall deliver an additional notice to holders, as promptly as practicable, whenever the expected
effective date or record date, as applicable, or the amount and kind of property that a holder of one share of the
Common Stock is expect to be entitled to receive in such event, changes.

 

    39 

     

    

 

		(e)	Notices After Certain Actions and Events. Whenever an adjustment to the Conversion Rate
becomes effective pursuant to Sections 4.04, 4.05 or 4.06 hereof, the Company will (i) file with the Trustee an Officers' Certificate
stating that such adjustment has become effective, the Conversion Rate, and the manner in which the adjustment was computed and
(ii) deliver notice to the Holder's stating that such adjustment has become effective and the Conversion Rate or conversion privilege
as adjusted. Failure to give any such notice, or any defect therein, shall not affect the validity of any such adjustment.

 

ARTICLE
5

PARTICULAR COVENANTS OF THE COMPANY

 

Section 5.01       
Payment of Principal, Interest and Fundamental Change Purchase Price. This Section 5.01 shall replace Section 10.01
of the Base Indenture in its entirety.

 

The Company covenants
and agrees that it will cause to be paid the principal of (including the Fundamental Change Purchase Price), and accrued and unpaid
interest, if any, on each of the Securities at the places, at the respective times and in the manner provided herein and in the
Securities.

 

Section 5.02       
Maintenance of Office or Agency. This Section 5.02
replaces Section 10.02 of the Base Indenture in its entirety and references in the Base Indenture to Section 10.02 of the Base
Indenture shall be deemed replaced with references to this Section 5.02.

 

The Company will maintain
in the Borough of Manhattan, The City of New York, an office of the Paying Agent, an office of the Security Registrar and an office
or agency where Securities may be surrendered for conversion (“Conversion Agent”) and where notices and demands
to or upon the Company in respect of the Securities and this Indenture may be served. The Company will give prompt written notice
to the Trustee of the location, and any change in the location, of such office or agency. If at any time the Company shall fail
to maintain any such required office or agency or shall fail to furnish the Trustee with the address thereof, such presentations,
surrenders, notices and demands may be made or served at the Corporate Trust Office or the office or agency of the Trustee in the
Borough of Manhattan, The City of New York.

 

The Company may also
from time to time designate coregistrars one or more other offices or agencies where the Securities may be presented or surrendered
for any or all such purposes and may from time to time rescind such designations; provided that no such designation or rescission
shall in any manner relieve the Company of its obligation to maintain an office or agency in the Borough of Manhattan, The City
of New York, for such purposes. The Company will give prompt written notice to the Trustee of any such designation or rescission
and of any change in the location of any such other office or agency. The terms “Paying Agent” and “Conversion
Agent” include any such additional or other offices or agencies, as applicable.

 

The Company
hereby initially designates the Trustee as the Paying Agent, Security Registrar, Custodian, Conversion Agent and the
Corporate Trust Office, which shall be in the continental United States, shall be considered as one such office or agency of
the Company for each of the aforesaid purposes.

 

    40 

     

    

 

With respect to any
Global Security, the Corporate Trust Office of the Trustee or any Paying Agent shall be the Place of Payment where such Global
Security may be presented or surrendered for payment or conversion or for registration of transfer or exchange, or where successor
Securities may be delivered in exchange therefor; provided, however, that any such payment, conversion, presentation, surrender
or delivery effected pursuant to the Applicable Procedures of the Depository for such Global Security shall be deemed to have been
effected at the Place of Payment for such Global Security in accordance with the provisions of this Indenture.

 

Section 5.03       
Appointments to Fill Vacancies in Trustee's Office.
The Company, whenever necessary to avoid or fill a vacancy in the office of Trustee, will appoint, in the manner provided in Section
6.10 of the Base Indenture, a Trustee, so that there shall at all times be a Trustee hereunder.

 

Section 5.04       
Provisions as to Paying Agent. This Section 5.04
shall replace Section 10.03 of the Base Indenture in its entirety and references in the Base Indenture to Section 10.03 of the
Base Indenture shall be deemed replace with references to this Section 5.04.

 

		(a)	If the Company shall appoint a Paying Agent other than the Trustee, the Company will cause such
Paying Agent to execute and deliver to the Trustee an instrument in which such agent shall agree with the Trustee, subject to the
provisions of this Section 5.04:

 

(1)       that
it will hold all sums held by it as such agent for the payment of the principal of, accrued and unpaid interest, if any, on, and
the Fundamental Change Purchase Price for, the Securities in trust for the benefit of the holders of the Securities;

 

(2)       that
it will give the Trustee prompt notice of any failure by the Company to make any payment of the principal of, accrued and unpaid
interest, if any, on, or the Fundamental Change Purchase Price for, the Securities when the same shall be due and payable;
and

 

(3)       that
at any time during the continuance of an Event of Default, upon request of the Trustee, it will forthwith pay to the Trustee all
sums so held in trust.

 

The Company shall,
on or before each due date of the principal of, accrued and unpaid interest, if any, on, and Fundamental Change Purchase Price
for, the Securities, deposit with the Paying Agent a sum sufficient to pay such principal, accrued and unpaid interest, or Fundamental
Change Purchase Price, as the case may be, and (unless such Paying Agent is the Trustee) the Company will promptly notify the Trustee
of any failure to take such action, provided that, if such deposit is made on the due date, such deposit must be received by the
Paying Agent by 10:00 a.m., New York City time, on such date.

 

		(b)	If the Company shall act as its own Paying Agent, it will, on or before each due date of the principal
of, accrued and unpaid interest, if any, on, or Fundamental Change Purchase Price for, the Securities, set aside, segregate and
hold in trust for the benefit of the holders of the Securities a sum sufficient to pay such principal, accrued and unpaid interest,
if any, on or Fundamental Change Purchase Price, as the case may
be, so becoming due and will promptly notify the Trustee in writing of any failure to take such action and of any failure by the
Company to make any payment of the principal of, accrued and unpaid interest on, or Fundamental Change Purchase Price for, the
Securities when the same shall become due and payable.

  

    41

     

    

 

		(c)	Anything in this Section 5.04 to the contrary notwithstanding, but subject to Article 7, the Company
may, at any time, for the purpose of obtaining a satisfaction and discharge of this Indenture, or for any other reason, pay or
cause to be paid to the Trustee all sums held in trust by the Company or any Paying Agent hereunder as required by this Section
5.04, such sums to be held by the Trustee upon the trusts herein contained and upon such payment by the Company or any Paying Agent
to the Trustee, the Company or such Paying Agent shall be released from all further liability with respect to such sums.

 

Section 5.05       
Reports. This Section 5.05 will replace Section 7.04
of the Base Indenture in its entirety.

 

The Company will file
with the Trustee, within 15 days after it is required to file the same with the SEC, copies of the quarterly and annual reports
and of the information, documents and other reports, if any, that it is required to file with the SEC pursuant to Section 13 or
15(d) of the Exchange Act, and to otherwise comply with Section 314(a) of the Trust Indenture Act. Any such report, information
or document that the Company files with the SEC through the EDGAR system (or any successor thereto) will be deemed to be delivered
to the Trustee for the purposes of this Section 5.05 at the time of such filing through the EDGAR system (or such successor thereto).

 

Delivery of any such
reports, information and documents to the Trustee shall be for informational purposes only, and the Trustee’s receipt of
such reports, information and documents 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).

 

Section 5.06       
Statements as to Defaults. The Company shall deliver
to the Trustee, as soon as possible, and in any event within thirty days after the Company becomes aware of the occurrence of any
Default or Event of Default, written notice and an Officers’ Certificate setting forth the details of such Default or Event
of Default, its status and the action that the Company proposes to take with respect thereto. Such Officers’ Certificate
shall also comply with any additional requirements set forth in Section 1.02 of the Base Indenture.

 

Section 5.07       
Supplementary Interest Notice. If Supplementary Interest
is payable by the Company pursuant to Section 6.04 hereof, the Company shall deliver to the Trustee an Officers’ Certificate
to that effect stating (a) the amount of such Supplementary Interest (in aggregate and per $1,000 principal amount of Securities)
and (b) the date on which such interest is payable. Unless and until a Responsible Officer of the Trustee receives at the Corporate
Trust Office such a certificate, the Trustee may assume without inquiry that no such Supplementary Interest is payable. If the
Company has paid Supplementary Interest directly to the Persons entitled to them, the Company shall deliver to the Trustee an Officers’
Certificate setting forth the particulars of such payment.

 

    42

     

    

 

Section 5.08       
Covenant to Take Certain Actions. Before taking any action which would cause an adjustment to the Conversion Rate such
that the Conversion Price per share of Common Stock issuable upon conversion of the Securities would be less than the par value
of the Common Stock, the Company shall take all corporate actions that may, in the opinion of its counsel, be necessary so it
may validly and legally issue shares of Common Stock at such adjusted Conversion Rate.

 

ARTICLE
6

REMEDIES

 

Section
6.01        Amendments
to the Base Indenture.

 

		(a)	The Holders shall not have the benefit of Article V of the Base Indenture and, with respect to
the Securities, this Article 6 supersedes Article V of the Base Indenture in its entirety.

 

		(b)	The reference to Section 5.01(4) in the proviso to the first sentence of Section 6.02 of the Base
Indenture is, with respect to the Securities, hereby deemed replaced by a reference to Section 6.02(f) of this Supplemental Indenture.

 

		(c)	The reference to Section 5.01(5) in Section 6.07 of the Base Indenture is, with respect to the
Securities, hereby deemed replaced by a reference to Section 6.02(h) of this Supplemental Indenture insofar as Section 6.02(h)
shall relate to the Company.

 

		(d)	The reference to Section 5.01(6) in Section 6.07 of the Base Indenture is, with respect to the
Securities, hereby deemed replaced by a reference to Section 6.02(i) of this Supplemental Indenture insofar as Section 6.02(i)
shall relate to the Company.

 

		(e)	Each reference in the Base Indenture to Section 5.02 is, with respect to the Securities, hereby
deemed replaced by a reference to Section 6.03 hereof.

 

Section 6.02       
Events of Default. Each of the following events (and
only the following events) shall be an “Event of Default” wherever used with respect to the Securities:

 

		(a)	default in any payment of interest on any Security when due and payable, and the default continues
for a period of thirty days;

 

		(b)	default in the payment of the principal of any Security (including the Fundamental Change Purchase
Price) when due and payable on the Maturity Date, upon required repurchase, upon declaration of acceleration or otherwise;

 

		(c)	failure by the Company to comply with its obligations under Article 4 hereof to convert the Securities
into shares of Common Stock determined in accordance with Article 4 hereof upon exercise of a Holder's conversion right and that
failure continues for three (3) Business Days;

 

		(d)	failure by the Company to comply with its obligations under Article 9 hereof;

 

		(e)	failure by the Company to issue a notice in accordance with the provisions of Section 3.02(b) hereof
when due;

 

    43

     

    

 

		(f)	failure by the Company for 60 days after written notice from the Trustee or the Holders of at least
25% in principal amount of the Securities then Outstanding (a copy of which notice, if given by Holders, must also be given to
the Trustee) has been received by the Company to comply with any of its other agreements contained in the Securities or this Indenture
(other than a covenant or warranty a default in whose performance or whose breach is elsewhere in this Section 6.02 specifically
provided for or that is not applicable to the Securities), which notice shall state that it is a “Notice of Default”
hereunder;

 

		(g)	failure by the Company to pay beyond any applicable grace period, or the acceleration of, indebtedness
of the Company or any of the Company's Subsidiaries in an aggregate principal amount with respect to which the default has occurred
is greater than $25,000,000 (or its foreign currency equivalent at the time);

 

		(h)	the Company or any Significant Subsidiary of the Company shall commence a voluntary case or other
proceeding seeking the liquidation, reorganization or other relief with respect to the Company or such Significant Subsidiary or
its debts under any bankruptcy, insolvency or other similar law now or hereafter in effect or seeking the appointment of a trustee,
receiver, liquidator, custodian or other similar official of the Company or such Significant Subsidiary of the Company or any substantial
part of the Company’s or such Significant Subsidiary of the Company’s property, or shall consent to any such relief
or to the appointment of or taking possession by any such official in an involuntary case or other proceeding commenced against
it, or shall make a general assignment for the benefit of creditors, or shall fail generally to pay its debts as they become due;
or

 

		(i)	an involuntary case or other proceeding shall be commenced against the Company or any Significant
Subsidiary of the Company seeking liquidation, reorganization or other relief with respect to the Company or such Significant Subsidiary
of the Company or its debts under any bankruptcy, insolvency or other similar law now or hereafter in effect or seeking the appointment
of a trustee, receiver, liquidator, custodian or other similar official of the Company or such Significant Subsidiary of the Company
or any substantial part of its property, and such involuntary case or other proceeding shall remain undismissed and unstayed for
a period of thirty consecutive days.

 

Section 6.03       
Acceleration; Rescission and Annulment. If one or
more Events of Default shall have occurred and be continuing (whatever the reason for such Event of Default and whether it shall
be voluntary or involuntary or be effected by operation of law or pursuant to any judgment, decree or order of any court or any
order, rule or regulation of any administrative or governmental body), then, and in each and every such case (other than an Event
of Default specified in Section 6.02(h) or Section 6.02(i)), unless the principal of all of the Securities shall have already become
due and payable, either the Trustee or the holders of at least 25% in aggregate principal amount of the Securities then Outstanding,
by notice in writing to the Company (and to the Trustee if given by the Holders), may declare 100% of the principal of, and accrued
and unpaid interest, if any, on all the Securities to be due and payable immediately. If an Event of Default specified in Section
6.02(h) or Section 6.02(i) occurs and is continuing, the principal of, and accrued and unpaid interest, if any, on all Securities
shall be immediately due and payable.

 

    44

     

    

 

Section
6.04        Supplementary
Interest.

 

		(a)	Notwithstanding any provisions of the Indenture to the contrary, if the Company so elects, the
sole remedy for an Event of Default relating to (i) the Company's failure to file with the Trustee pursuant to Section 314(a)(1)
of the Trust Indenture Act any documents or reports that it is required to file with the Commission pursuant to Section 13 or 15(d)
of the Exchange Act, or (ii) the Company's failure to comply with Section 5.06 hereof (a “Reporting Event of Default”),
will consist exclusively of the right to receive additional interest on the Securities (the “Supplementary Interest”)
at a rate per year equal to 0.50% per annum of the Outstanding principal amount of the Securities for each day during such 180-day
period as long as such Event of Default is continuing (and neither waived nor cured). If the Company so elects, such Supplementary
Interest will be payable in the same manner and on the same dates as the stated interest payable on the Securities. On the 181st
day after such Event of Default (if the Reporting Event of Default is not cured or waived prior to such 181st day), the Securities
will be subject to acceleration pursuant to Section 6.03. The provisions of this Section 6.04 will not affect the rights of Holders
of Securities in the event of the occurrence of any Event of Default that is not a Reporting Event of Default. In the event the
Company does not elect to pay the Supplementary Interest following an Event of Default in accordance with this Section 6.04 or
the Company elected to make such payment but did not pay the Supplementary Interest when due, the Securities will be immediately
subject to acceleration as provided in Section 6.03.

 

		(b)	In order to elect to pay the Supplementary Interest as the sole remedy during the first 180 days
after the occurrence of a Reporting Event of Default, the Company must notify all Holders of Securities, the Trustee and the Paying
Agent of such election prior to the beginning of such 180-day period. Upon the Company's failure to timely give such notice, the
Securities will be immediately subject to acceleration as provided in Section 6.03.

 

Section 6.05       
Waiver of Past Defaults. The Holders of a majority
in aggregate principal amount of the Securities then Outstanding, by written notice to the Company and to the Trustee, may waive
(including by way of consents obtained in connection with a repurchase of, or tender or exchange offer for, the Securities) all
past Defaults or Events of Default with respect to the Securities (other than a Default or an Event of Default resulting from nonpayment
of principal or interest, a failure to deliver consideration due upon conversion or any other provisions that requires the consent
of each affected Holder to amend) and rescind any such acceleration with respect to the Securities and its consequences if (i)
rescission would not conflict with any judgment or decree of a court of competent jurisdiction and (ii) all existing Events of
Default, other than the nonpayment of the principal of, and interest on, the Securities that have become due solely by such declaration
of acceleration have been cured or waived.

 

Section 6.06        Control
by Majority. At any time, the Holders of a majority of the aggregate principal amount of the then Outstanding
Securities may direct the time, method and place of conducting any proceeding for any remedy available to the Trustee or for
exercising any trust or power conferred on the Trustee. However, the Trustee may refuse to follow any direction that
conflicts with law or this Indenture or, subject to the Trustee's duties under Article VI of the Base Indenture and the Trust
Indenture Act, that the Trustee determines to be unduly prejudicial to the rights of a Holder or to the Trustee, or that
would potentially involve the Trustee in personal liability unless the Trustee is offered indemnity and/or security
reasonably satisfactory to it against any loss, liability or expense to the Trustee that may result from the Trustee's
instituting such proceeding as the Trustee. Prior to taking any action hereunder, the Trustee will be entitled to
indemnification and/or security reasonably satisfactory to it against all losses and expenses caused by taking or not taking
such action.

 

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Section 6.07       
Limitation on Suits. Subject to Section 6.08 hereof,
no Holder may pursue a remedy with respect to this Indenture or the Securities unless:

 

		(a)	such Holder has previously delivered to the Trustee written notice that an Event of Default is
continuing;

 

		(b)	the Holders of at least 25% of the aggregate principal amount of the then Outstanding Securities
request that the Trustee pursue a remedy with respect to such Event of Default;

 

		(c)	such Holder or Holders have offered and, if requested, provided to the Trustee indemnity and/or
security reasonably satisfactory to the Trustee against any loss, liability or other expense of compliance with such written request;

 

		(d)	the Trustee has not complied with such request within 60 days after receipt of such written request
and offer of indemnity and/or security; and

 

		(e)	during such 60-day period, the Holders of a majority of the aggregate principal amount of the then
Outstanding Securities did not deliver to the Trustee a direction inconsistent with such request.

 

Section 6.08       
Rights of Holders to Receive Payment and to Convert.
Notwithstanding anything to the contrary elsewhere in this Indenture, the right of any Holder to receive payment of the principal
of, interest on, Fundamental Change Purchase Price for, its Securities, on or after the respective due date, and to convert its
Securities and receive payment or delivery of the consideration due with respect to such Securities in accordance with Article
4 hereof, or to bring suit for the enforcement of any such payment or conversion rights, will not be impaired or affected without
the consent of such Holder and will not be subject to the requirements of Section 6.07 hereof.

 

Section 6.09       
Collection of Indebtedness; Suit for Enforcement by Trustee.
If an Event of Default specified in Section 6.02(a), 6.02(b) or 6.02(c) hereof occurs and is continuing, the Trustee is authorized
to recover judgment in its own name and as trustee of an express trust against the Company for the whole amount of principal of,
interest on, Fundamental Change Purchase Price for and the consideration due upon the conversion of, the Securities, as the case
may be, and such further amount as is sufficient to cover the costs and expenses of collection, including the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel, as well as any other amounts that may be due under
Section 6.07 of the Base Indenture.

 

Section 6.10        Trustee
May Enforce Claims Without Possession of Securities. All rights of action and claims under this Indenture or the
Securities may be prosecuted and enforced by the Trustee without the possession of any of the 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 in respect of which such judgment has been recovered.

 

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Section 6.11       
Trustee May File Proofs of Claim. The Trustee is
authorized to file such proofs of claim and other papers or documents as may be necessary or advisable to have the claims of the
Trustee and the Holders allowed in any judicial proceedings relative to the Company, its creditors or its property and, unless
prohibited by law or applicable regulations, will be entitled to collect, receive and distribute any money or other property payable
or deliverable on any such claims, and any custodian in any such judicial proceeding is hereby authorized by each Holder to make
such payments to the Trustee, and, in the event that the Trustee consents to the making of such payments directly to the Holders,
to pay to the Trustee any amount due to it for the reasonable compensation, expenses, disbursements and advances of the Trustee,
its agents and counsel, and any other amounts due the Trustee under the Base Indenture (including Section 6.07 of the Base Indenture)
and this Supplemental Indenture. To the extent that the payment of any such compensation, expenses, disbursements and advances
of the Trustee, its agents and counsel, and any other amounts due the Trustee under Section 6.07 of the Base Indenture out of the
estate in any such proceeding, will be denied for any reason, payment of the same will be secured by a lien on, and is paid out
of, any and all distributions, dividends, money, securities and other properties that the Holders may be entitled to receive in
such proceeding, whether in liquidation or under any plan of reorganization or arrangement or otherwise. Nothing herein contained
will be deemed to authorize the Trustee to authorize or consent to, or to accept or to adopt on behalf of any Holder, any plan
of reorganization, arrangement, adjustment or composition affecting the Securities or the rights of any Holder, or to authorize
the Trustee to vote in respect of the claim of any Holder in any such proceeding.

 

Section 6.12       
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, subject
to any determination in such proceeding, the Company, the Trustee and the Holders shall be restored severally and respectively
to their former positions hereunder and thereafter all rights and remedies of the Trustee and the Holders shall continue as though
no such proceeding had been instituted.

 

Section 6.13       
Rights and Remedies Cumulative. Except as otherwise
provided with respect to the replacement or payment of mutilated, destroyed, lost or stolen Securities in Section 3.06 of the Base
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 6.14        Delay
or Omission Not a 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 an acquiescence therein. Every right and remedy given by this Article 6 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 (subject to the limitations contained in
this Indenture) or by the Holders, as the case may be.

 

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Section 6.15       
Priorities. If the Trustee collects any money pursuant
to this Article 6, it will pay out the money in the following order:

 

FIRST: to the Trustee,
its agents and attorneys for amounts due under Section 6.07 of the Base Indenture and this Supplemental Indenture, including payment
of all compensation, expenses and liabilities incurred, and all advances made, by the Trustee and the costs and expenses of collection;

 

SECOND: to the Holders,
for any amounts due and unpaid on the principal of, accrued and unpaid interest on, Fundamental Change Purchase Price for, and
any cash due upon conversion of, any Security, without preference or priority of any kind, according to such amounts due and payable
on all of the Securities; and

 

THIRD: the balance,
if any, to the Company or to such other party as a court of competent jurisdiction directs.

 

The Trustee may fix
a record date and payment date for any payment to the Holders pursuant to this Section 6.15. If the Trustee so fixes a record date
and a payment date, at least 15 days prior to such record date, the Company will deliver to each Holder and the Trustee a written
notice, which notice will state such record date, such payment date and the amount of such payment.

 

Section 6.16       
Undertaking for Costs. All parties to this Indenture
agree, and each Holder, by such Holder’s acceptance of a Security, 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 or omitted by it as Trustee, the filing by any party litigant in such suit 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, 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; provided, however, that the provisions of this Section 6.16 shall not apply to any suit instituted
by the Trustee, to any suit instituted by any Holder, or group of Holders, holding in the aggregate more than 10% in aggregate
principal amount of the Securities then Outstanding, or to any suit instituted by any Holder for the enforcement of the payment
of the principal of, accrued and unpaid interest, if any, on, or Fundamental Change Purchase Price for, any Security on or after
the due date expressed or provided for in this Indenture or to any suit for the enforcement of the right to convert any Security
in accordance with the provisions of Article 4 hereof.

 

Section 6.17       
Waiver of Stay, Extension and Usury Laws. The Company
covenants that, to the extent that it may lawfully do so, it will 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 wherever enacted, now or at any time hereafter in force,
that may affect the covenants or the performance of this Indenture; and the Company, to the extent that it may lawfully do
so, hereby expressly waives all benefit 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 Trustee, but will instead suffer and permit the execution
of every such power as though no such law has been enacted.

 

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Section 6.18       
Notices from the Trustee. Notwithstanding anything to the contrary in the Base Indenture, including Section 6.02 of the
Base Indenture, whenever a Default occurs and is continuing and a Responsible Officer of the Trustee has received written notice
of such Default, the Trustee must deliver notice of such Default to the Holders within 90 days after the date on which such Default
first occurred. Except in the case of a Default in the payment of the principal of, interest on, or Fundamental Change Purchase
Price for, any Security or of a Default in the payment or delivery, as the case may be, of the consideration due upon conversion
of a Security, 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 interests of the Holders.

 

ARTICLE
7

SATISFACTION AND DISCHARGE

 

Section 7.01       
Inapplicability of Provisions of Base Indenture; Satisfaction
and Discharge of the Indenture. Article IV of the Base Indenture shall not apply with respect to the Securities. The
provisions set forth in this Article 7 shall, with respect to the Securities, supersede in their entirety Article IV of the Base
Indenture.

 

When (a) the Company
shall deliver to the Security Registrar for cancellation all Securities theretofore authenticated (other than any Securities that
have been destroyed, lost or stolen and in lieu of or in substitution for which other Securities shall have been authenticated
and delivered) and not theretofore canceled, or (b) all the Securities not theretofore canceled or delivered to the Trustee for
cancellation shall have become due and payable (whether on the Maturity Date, on any Fundamental Change Purchase Date, upon conversion
or otherwise) and the Company shall deposit with the Trustee, in trust, or deliver to the Holders, as applicable, an amount of
cash and shares of Common Stock, if any, as the case may be (solely to settle amounts due with respect to outstanding conversions),
sufficient to pay all amounts due on all of such Securities (other than any Securities that shall have been mutilated, destroyed,
lost or stolen and in lieu of or in substitution for which other Securities shall have been authenticated and delivered) not theretofore
canceled or delivered to the Trustee for cancellation, including principal and interest due, accompanied, except in the event the
Securities are due and payable solely in cash at the Maturity Date or upon an earlier Fundamental Change Purchase Date, by a verification
report as to the sufficiency of the deposited amount from an independent certified accountant or other financial professional reasonably
satisfactory to the Trustee, and if the Company shall also pay or cause to be paid all other sums payable hereunder by the Company,
then this Indenture shall cease to be of further effect (except as to (i) rights hereunder of Holders to receive all amounts owing
upon the Securities and the other rights, duties and obligations of Holders, as beneficiaries hereof with respect to the amounts,
if any, so deposited with the Trustee and (ii) the rights, obligations and immunities of the Trustee hereunder), and the Trustee,
on written demand of the Company accompanied by an Officers’ Certificate and an Opinion of Counsel and at the cost and expense
of the Company, shall execute proper instruments acknowledging satisfaction and discharge of this Indenture; the Company,
however, hereby agrees to reimburse the Trustee for any costs or expenses thereafter reasonably and properly incurred by the Trustee,
including the fees and expenses of its counsel, and to compensate the Trustee for any services thereafter reasonably and properly
rendered by the Trustee in connection with this Indenture or the Securities.

 

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Section 7.02        Deposited
Monies to Be Held in Trust by Trustee. Subject to Section 7.04 hereof, all monies and shares of Common Stock, if
any, deposited with the Trustee pursuant to Section 7.01 hereof shall be held in trust for the sole benefit of the Holders of
the Securities, and such monies and shares of Common Stock shall be applied by the Trustee to the payment, either directly or
through any Paying Agent (including the Company if acting as its own Paying Agent), to the Holders of the particular
Securities for the payment or settlement of which such monies or shares of Common Stock have been deposited with the Trustee,
of all sums or amounts due and to become due thereon for principal and interest, if any.

 

Section 7.03       
Paying Agent to Repay Monies Held. Upon the satisfaction
and discharge of this Indenture, all monies and shares of Common Stock, if any, then held by any Paying Agent (if other than the
Trustee) shall, upon written request of the Company, be repaid to it or paid to the Trustee, and thereupon such Paying Agent shall
be released from all further liability with respect to such monies and shares of Common Stock.

 

Section 7.04       
Return of Unclaimed Monies. Subject to the requirements
of applicable law, any monies and shares of Common Stock deposited with or paid to the Trustee for payment of the principal of
or interest, if any, on the Securities and not applied but remaining unclaimed by the Holders of the Securities for two years after
the date upon which the principal of or interest, if any, on such Securities, as the case may be, shall have become due and payable,
shall be repaid to the Company by the Trustee on written demand, and all liability of the Trustee shall thereupon cease with respect
to such monies and shares of Common Stock; and the Holder shall thereafter look only to the Company for any payment or delivery
that such Holder may be entitled to collect unless an applicable abandoned property law designates another Person.

 

Section 7.05       
Reinstatement. If the Trustee or the Paying Agent
is unable to apply any money or shares of Common Stock in accordance with Section 7.02 by reason of any order or judgment of any
court or governmental authority enjoining, restraining or otherwise prohibiting such application, the Company’s obligations
under the Indenture and the Securities shall be revived and reinstated as though no deposit had occurred pursuant to Section 7.01
until such time as the Trustee or the Paying Agent is permitted to apply all such money and shares of Common Stock in accordance
with Section 7.02; provided, however, that if the Company makes any payment of interest on, principal of or payment or delivery
in respect of any Security following the reinstatement of its obligations, the Company shall be subrogated to the rights of the
Holders of such Securities to receive such payment from the money or shares of Common Stock, if any, held by the Trustee or Paying
Agent.

 

ARTICLE
8

SUPPLEMENTAL INDENTURES

 

Section 8.01       
Supplemental Indentures Without Consent of Holders.
Section 9.01 of the Base Indenture shall not apply with respect to the Securities, and this Section 8.01 shall replace Section
9.01 of the Base Indenture in its entirety.

 

Without the consent
of any Holder, the Company (when authorized by a Board Resolution) and the Trustee, 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:

 

		(a)	to conform the terms of this Indenture or the Securities to the description thereof in the Preliminary
Prospectus Supplement, as supplemented by the issuer free writing prospectus related to the offering of the Securities filed by
the Company with the Commission pursuant to
Rule 433 under the Securities Act of 1933 on January 28, 2021;

  

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		(b)	to evidence the succession by a Successor Company and to provide for the assumption by a Successor
Company of the Company’s obligations under the Indenture;

 

		(c)	to add guarantees with respect to the Securities;

 

		(d)	to secure the Securities;

 

		(e)	to issue additional Securities pursuant to Section 2.01(c);

 

		(f)	to add to the Company’s covenants such further covenants, restrictions or conditions for
the benefit of the Holders (or any other holders) or surrender any right or power conferred upon the Company by the Indenture;

 

		(g)	to cure any ambiguity, defect or inconsistency in this Indenture or the Securities, including to
eliminate any conflict with the Trust Indenture Act, or to make any other change that does not adversely affect the rights of any
Holder in any material respect;

 

		(h)	to provide for a successor Trustee;

 

		(i)	to comply with the Applicable Procedures of the Depository; or

 

		(j)	to comply with any requirement of the Commission in connection with the qualification of the Indenture
under the Trust Indenture Act.

 

Section 8.02       
Supplemental Indentures With Consent of Holders.
Section 9.02 of the Base Indenture shall not apply with respect to the Securities, and this Section 8.02 shall replace Section
9.02 of the Base Indenture in its entirety.

 

With the consent of
the Holders of not less than a majority in principal amount of the Outstanding Securities affected by such supplemental indenture,
including without limitation, consents obtained in connection with a purchase of, or tender or exchange offer for, Securities and
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;
provided, however, that no such supplemental indenture shall, without the consent of the Holder of each Outstanding Security
affected thereby:

 

		(a)	reduce the percentage in aggregate principal amount of Securities Outstanding necessary to waive
any past Default or Event of Default;

 

		(b)	reduce the rate of interest on any Security or change the time for payment of interest on any Security;

 

		(c)	reduce the principal of any Security or change the Maturity Date;

 

		(d)	change the place or currency of payment on any Security;

 

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		(e)	make any change that impairs or adversely affects the conversion rights of any Securities;

 

		(f)	reduce the Fundamental Change Purchase Price of any Security or amend or modify in any manner adverse
to the rights of the Holders of the Securities the Company's obligation to pay the Fundamental Change Purchase Price, whether through
an amendment or waiver of provisions in the covenants, definitions related thereto or otherwise;

 

		(g)	impair the right of any Holder of Securities to receive payment of principal of, and interest,
if any, on, its Securities, or the right to receive the consideration due upon conversion of its Securities on or after the due
dates therefore or to institute suit for the enforcement of any such payment or delivery, as the case may be, with respect to such
Holder's Securities;

 

		(h)	modify the ranking provisions of this Indenture in a manner that is adverse to the rights of the
Holders of the Securities; or

 

		(i)	make any change to the provisions of this Article 8 that requires each Holder's consent or in the
waiver provisions in Section 6.05 of this Supplemental Indenture if such change is adverse to the rights of Holders of the Securities.

 

It shall not be necessary
for any Act or consent of Holders under this Section 8.02 to approve the particular form of any proposed supplemental indenture,
but it shall be sufficient if such Act or consent shall approve the substance thereof. The Company may, but shall not be obligated
to, fix a record date for the purpose of determining the Persons entitled to consent to any indenture supplemental hereto. If a
record date is fixed, the Holders on such record date, or their duly designated proxies, and only such Persons, shall be entitled
to consent to such supplemental indenture, whether or not such Holders remain Holders after such record date; provided that,
unless such consent shall have become effective by virtue of the requisite percentage having been obtained prior to the date which
is 90 days after such record date, any such consent previously given shall automatically and without further action by any Holder
be cancelled and of no further effect.

 

For the avoidance of
doubt, the provisions of Article IX of the Base Indenture other than Sections 9.01 and 9.02 shall remain in effect and continue
to apply with respect to the Securities.

 

Section 8.03       
Notice of Amendment or Supplement. After an amendment
or supplement under this Article 8 becomes effective, the Company shall mail to the Holders a notice briefly describing such amendment
or supplement. However, the failure to give such notice to all the Holders, or any defect in the notice, shall not impair or affect
the validity of the amendment or supplement.

 

ARTICLE
9

SUCCESSOR COMPANY

 

Section 9.01       
Consolidation, Merger and Sale of Assets.

 

		(a)	The provisions in Article VIII of the Base Indenture shall not apply with respect to the Securities,
and this Article 9 supersedes the entirety thereof.

 

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		(b)	In addition, the reference to “Article Eight” in Section 10.05 of the Base Indenture
is, with respect to the Securities, deemed replaced with a reference to this Article 9.

 

Section 9.02       
Company May Consolidate, Etc. on Certain Terms. Subject
to the provisions of Section 9.04, the Company shall not amalgamate or consolidate with, merge with or into or convey, transfer
or lease its properties and assets substantially as an entirety to another Person, unless:

 

		(a)	the Company shall be the surviving Person or the resulting, surviving or transferee Person (the
 “Successor Company”), if not the Company, shall be a corporation organized and existing under the laws of the
United States of America, any State thereof or the District of Columbia, and the Successor Company (if not the Company) shall expressly
assume, by supplemental indenture, executed and delivered to the Trustee, in form satisfactory to the Trustee, all of the obligations
of the Company under the Securities and this Indenture as applicable to the Securities; and

 

		(b)	immediately after giving effect to such transaction, no Default or Event of Default shall have
occurred and be continuing under this Indenture.

 

Section 9.03       
Successor Corporation to Be Substituted. In case
of any such amalgamation, consolidation, merger, conveyance, transfer or lease and upon the assumption by the Successor Company,
by supplemental indenture, executed and delivered to the Trustee and satisfactory in form to the Trustee, of the due and punctual
payment of the principal of (including any Fundamental Change Purchase Price), accrued and unpaid interest and accrued and unpaid
Supplementary Interest, if any, on all of the Securities, the due and punctual delivery or payment, as the case may be, of any
consideration due upon conversion of the Securities and the due and punctual performance of all of the covenants and conditions
of this Indenture to be performed by the Company under this Indenture, such Successor Company 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 it had been named
herein as the party of the first part. Such Successor Company thereupon may cause to be signed, and may issue either in its own
name or in the name of the Company any or all of the Securities issuable hereunder which theretofore shall not have been signed
by the Company and delivered to the Trustee; and, upon the order of such Successor Company instead of the Company and subject to
all the terms, conditions and limitations in this Indenture prescribed, the Trustee shall authenticate and shall deliver, or cause
to be authenticated and delivered, any Securities that previously shall have been signed and delivered by the officers of the Company
to the Trustee for authentication, and any Securities that such Successor Company thereafter shall cause to be signed and delivered
to the Trustee for that purpose. All the Securities so issued shall in all respects have the same legal rank and benefit under
this Indenture as the Securities theretofore or thereafter issued in accordance with the terms of this Indenture as though all
of such Securities had been issued at the date of the execution hereof. In the event of any such amalgamation, consolidation, merger,
conveyance or transfer (but not in the case of a lease), the Person named as the “Company” in the first paragraph of
this Indenture or any successor that shall thereafter have become such in the manner prescribed in this Article 9 may be dissolved,
wound up and liquidated at any time thereafter and, except in the case of a lease, such Person shall be released from its liabilities
as obligor and maker of the Securities and from its obligations under this Indenture.

 

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In case of any such
amalgamation, consolidation, merger, conveyance, transfer or lease, such changes in phraseology and form (but not in substance)
may be made in the Securities thereafter to be issued as may be appropriate.

 

Section 9.04       
Opinion of Counsel to Be Given to Trustee. In the
case of an such amalgamation, merger, consolidation, conveyance, transfer or lease the Trustee shall receive an Officers' Certificate
and an Opinion of Counsel stating that any such amalgamation, consolidation, merger, conveyance, transfer or lease and any such
assumption and, if a supplemental indenture is required in connection with such transaction, such supplemental indenture complies
with the provisions of this Article 9 and constitutes the legal, valid and binding obligations of the Company (subject to customary
exceptions and assumptions).

 

ARTICLE
10

MEETING OF HOLDERS OF SECURITIES

 

Section
10.01    Purposes for Which
Meetings May Be Called.

 

		(a)	A meeting of Holders of Securities may be called at any time and from time to time pursuant to
this Article 10 to make, give or take any request, demand, authorization, direction, notice, consent, waiver or other action provided
by this Indenture to be made, given or taken by Holders of Securities. Notwithstanding the foregoing, the Holders may take any
of the foregoing actions without a meeting of Holders if such action is not inconsistent with this Supplemental Indenture and the
Holders representing the requisite principal amount of Securities required to take such action have agreed to take such action.

 

Section
10.02    Call, Notice and
Place of Meetings.

 

		(a)	The Trustee may at any time call a meeting of Holders of Securities for any purpose specified in
Section 10.01, to be held at such time and at such place as the Trustee shall determine. Notice of every meeting of Holders of
Securities, 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, in the manner provided in Section 1.06 of the Base Indenture, not less than 20 nor more than 180 days prior to
the date fixed for the meeting.

 

		(b)	In case at any time the Company, pursuant to a Board Resolution, or the Holders of at least 25%
in principal amount of the outstanding Securities shall have requested the Trustee to call a meeting of the Holders of Securities
for any purpose specified in Section 10.01, by written request setting forth in reasonable detail the action proposed to be taken
at the meeting, and the Trustee shall not have made the first publication of the notice of such meeting within 20 days after receipt
of such request or shall not thereafter proceed to cause the meeting to be held as provided herein, then the Company or the Holders
of Securities in the amount above specified, as the case may be, may determine the time and the place for such meeting and may
call such meeting for such purposes by giving notice thereof as provided in subsection (a) of this Section 10.02.

 

Section
10.03    Persons Entitled
to Vote at Meetings

 

		(a)	To be entitled to vote at any meeting of Holders of Securities, a Person shall be:

 

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(1)       a
Holder of one or more outstanding Securities, or

 

(2)       a
Person appointed by an instrument in writing as proxy for a Holder or Holders of one or more outstanding Securities by such Holder
or Holders. The only Persons who shall be entitled to be present or to speak at any meeting of Holders of Securities shall be the
Persons entitled to vote at such meeting and their counsel, any representatives of the Trustee and its counsel and any representatives
of the Company and their respective counsel.

 

Section
10.04    Quorum; Action.

 

		(a)	The Persons entitled to vote a majority in principal amount of the outstanding Securities shall
constitute a quorum for a meeting of Holders of Securities; provided, however, that if any action is to be taken at such meeting
with respect to a consent or waiver which this Indenture expressly provides may be given by the Holders of not less than a specified
percentage in principal amount of the outstanding Securities, the Persons entitled to vote such specified percentage in principal
amount of the outstanding Securities shall constitute a quorum. In the absence of a quorum within 30 minutes after the time appointed
for any such meeting, the meeting shall, if convened at the request of Holders of Securities, be dissolved. In any other case the
meeting may be adjourned for a period of not less than 10 days as determined by the chairman of the meeting prior to the adjournment
of such meeting. In the absence of a quorum at the reconvening of any such adjourned meeting, such adjourned meeting may be further
adjourned for a period of not less than 10 days; at the reconvening of any meeting adjourned or further adjourned for lack of a
quorum, the Persons entitled to vote 25% in aggregate principal amount of the then outstanding Securities shall constitute a quorum
for the taking of any action set forth in the notice of the original meeting. Notice of the reconvening of any adjourned meeting
shall be given as provided in Section 10.02(a), except that such notice need be given only once not less than five days prior to
the date on which the meeting is scheduled to be reconvened.

 

		(b)	Except as limited by the proviso to Section 8.02, any resolution presented to a meeting or adjourned
meeting duly reconvened at which a quorum is present as aforesaid may be adopted by the affirmative vote of the Persons entitled
to vote a majority in aggregate principal amount of the outstanding Securities; provided, however, that, except as
limited by the proviso to Section 8.02, any resolution with respect to any request, demand, authorization, direction, notice, consent,
waiver or other action which this Indenture expressly provides may be made, given or taken by the Holders of a specified percentage,
which is less than a majority, in principal amount of the outstanding Securities may be adopted at a meeting or an adjourned meeting
duly reconvened and at which a quorum is present as aforesaid by the affirmative vote of the Holders of such specified percentage
in principal amount of the outstanding Securities.

 

Any resolution passed
or decision taken at any meeting of Holders of Securities duly held in accordance with this Section 10.04 shall be binding on all
the Holders of Securities, whether or not present or represented at the meeting.

 

    55

     

    

 

Notwithstanding the
foregoing provisions of this Section 10.04, if any action is to be taken at a meeting of Holders of Securities with respect to
any request, demand, authorization, direction, notice, consent, waiver or other action that this Indenture expressly provides may
be made, given or taken by the Holders of a specified percentage in principal amount of all outstanding Securities affected thereby:

 

(1)       there
shall be no minimum quorum requirement for such meeting; and

 

(2)       the
principal amount of the outstanding Securities that vote in favor of such request, demand, authorization, direction, notice, consent,
waiver or other action shall be taken into account in determining whether such request, demand, authorization, direction, notice,
consent, waiver or other action has been made, given or taken under this Indenture.

 

Section
10.05    Determination of
Voting Rights; Conduct and Adjournment of Meetings.

 

		(a)	Notwithstanding any provisions of this Indenture, the Trustee may make such reasonable regulations
as it may deem advisable for any meeting of Holders of Securities in regard to proof of the holding of Securities 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.

 

		(b)	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 Securities as provided in Section 10.02(b), in which case the
Company or the Holders of Securities 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 vote of the Persons entitled to vote a majority
in principal amount of the outstanding Securities represented at the meeting.

 

		(c)	At any meeting each Holder of such Securities or proxy shall be entitled to one vote for each $1,000
principal amount of the outstanding Securities held or represented by him; provided, however, that no vote shall be cast
or counted at any meeting in respect of any 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, except as a Holder of Securities or proxy.

 

		(d)	Any meeting of Holders of Securities duly called pursuant to Section 10.02 at which a quorum is
present may be adjourned from time to time by Persons entitled to vote a majority in principal amount of the outstanding Securities
represented at the meeting, and the meeting may be held as so adjourned without further notice.

 

    56

     

    

 

Section
10.06    Counting Votes
and Recording Action of Meetings.

 

The vote upon any
resolution submitted to any meeting of Holders of Securities shall be by written ballots on which shall be subscribed the
signatures of the Holders of Securities or of their representatives by proxy and the principal amounts and serial numbers of
the outstanding 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, at least in
duplicate, of the proceedings of each meeting of Holders of Securities shall be prepared by the secretary of the meeting 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 fact, setting forth a copy of the notice of the meeting and
showing that said notice was given as provided in Section 10.02 and, if applicable, Section 10.04. Each copy shall be signed
and verified by the affidavits of the permanent chairman and secretary of the meeting and one such copy shall be delivered to
the Company and another to the Trustee to be preserved by the Trustee, the latter to have attached thereto the ballots voted
at the meeting. Any record so signed and verified shall be conclusive evidence of the matters therein stated.

 

ARTICLE
11

MISCELLANEOUS

 

Section 11.01   
Effect on Successors and Assigns. Notwithstanding
Section 1.11 of the Base Indenture, all agreements of the Company, the Trustee, the Security Registrar, the Paying Agent and the
Conversion Agent in this Indenture and the Securities will bind their respective successors.

 

Section 11.02   
Governing Law; Jurisdiction; Waiver of Jury Trial.
THE INTERNAL LAWS OF THE STATE OF NEW YORK SHALL GOVERN AND BE USED TO CONSTRUE THIS INDENTURE AND THE SECURITIES, INCLUDING WITHOUT
LIMITATION, SECTIONS 5-1401 AND 5-1402 OF THE NEW YORK GENERAL OBLIGATIONS LAW AND NEW YORK CIVIL PRACTICE LAWS AND RULES 327(B).

 

The Company, the Trustee
and, by acceptance of the Securities, each Holder agrees that any suit, action or proceeding arising out of or based upon this
Supplemental Indenture or the transactions contemplated hereby may be instituted in any State or Federal court in The City of New
York, New York, and waives any objection which it may now or hereafter have to the laying of venue of any such proceeding, and
irrevocably submits to the nonexclusive jurisdiction of such courts in any suit, action or proceeding.

 

THE COMPANY, THE TRUSTEE
AND EACH HOLDER OF THE SECURITIES BY HIS ACCEPTANCE THEREOF HEREBY WAIVE ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR
COUNTERCLAIM (WHETHER BASED ON CONTRACT, TORT OR OTHERWISE) ARISING OUT OF OR RELATING TO THIS INDENTURE OR THE TRANSACTIONS CONTEMPLATED
HEREBY.

 

Section 11.03   
No Security Interest Created. Nothing in this Indenture
or in the Securities, expressed 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.

 

Section
11.04    Trust
Indenture Act. If any provision hereof limits, qualifies or conflicts with a provision of the Trust Indenture Act
that is required under such Act to be a part of and govern this Indenture, the latter provision shall control. If any
provision of this Indenture modifies or excludes any provision of the Trust Indenture Act that may be so modified or
excluded, the latter provision shall be deemed to apply to this Indenture as so modified or to be excluded, as the case may
be.

  

    57

     

    

 

Section 11.05   
Benefits of Supplemental Indenture. Notwithstanding
anything to the contrary in Section 1.11 of the Base Indenture, nothing in this Supplemental Indenture or in the Securities, expressed
or implied, will give to any Person, other than the parties hereto, any Paying Agent, any Conversion Agent, any Authenticating
Agent, any Security Registrar or their successors hereunder or the Holders of the Securities, any benefit or any legal or equitable
right, remedy or claim under this Supplemental Indenture.

 

Section 11.06   
Calculations. Except as otherwise provided in this
Indenture, the Company shall be responsible for making all calculations called for under the Securities. These calculations include,
but are not limited to, determinations of the Last Reported Sale Prices of the Common Stock, accrued interest payable on the Securities
and the Conversion Rate (including adjustments thereto). The Company shall make all these calculations in good faith and, absent
manifest error, the Company’s calculations shall be final and binding on Holders of Securities. The Company shall provide
a schedule of its calculations to each of the Trustee and the Conversion Agent, and each of the Trustee and Conversion Agent is
entitled to rely conclusively upon the accuracy of the Company’s calculations without independent verification. The Trustee
will forward the Company’s calculations to any Holder upon the request of that Holder at the sole cost and expense of the
Company.

 

Whenever the Company
is required to calculate the Conversion Rate, or any adjustment thereto, the Company will do so to the nearest 1/10,000th of a
share of Common Stock.

 

Section
11.07    Execution
in Counterparts. This Supplemental Indenture may be executed in any number of counterparts, each of which shall be
an original, but such counterparts shall together constitute but one and the same instrument. The words
 “execution,” “signed,” “signature,” “manual signature” and words of like
import in this Supplemental Indenture shall include images of manually executed signatures transmitted by facsimile or other
electronic format (including, without limitation, “pdf”, “tif” or “jpg”) and other
electronic signatures (including, without limitation, DocuSign and AdobeSign or any other electronic process or digital
signature provider as specified in writing to the Trustee and agreed to by the Trustee in its sole discretion). The use of
electronic signatures and electronic records (including, without limitation, any contract or other record created, generated,
sent, communicated, received, or stored by electronic means) shall be of the same legal effect, validity and enforceability
as a manually executed signature or use of a paper based record-keeping system to the fullest extent permitted by applicable
law, including the Federal Electronic Signatures in Global and National Commerce Act, the New York State Electronic
Signatures and Records Act and any other applicable law, including, without limitation, any state law based on the Uniform
Electronic Transactions Act. Each party agrees that this Supplemental Indenture, any indentures supplemental hereto, any
Securities issued hereunder and any other documents delivered hereunder may be electronically or digitally signed using
DocuSign and AdobeSign (or any other electronic process or digital signature provider as specified in writing to the Trustee
and agreed to by the Trustee in its sole discretion), and that any such electronic or digital signatures appearing on this
Supplemental Indenture, any indentures supplemental hereto, any Securities issued hereunder and any other documents delivered
hereunder are the same as handwritten signatures for the purposes of validity, enforceability and admissibility. The original
documents shall be delivered as soon as practicable, if requested. The Trustee shall not incur liability for the use of the
execution or signing methods set forth in this section and the Company acknowledges that it accepts the risks of using these
methods.

 

    58

     

    

 

Section 11.08   
Notices. The Company or the Trustee, by notice given
to the other in the manner provided in Section 1.05 of the Base Indenture, may designate additional or different addresses for
subsequent notices or communications.

 

Notwithstanding anything
to the contrary in Sections 1.05 and 1.06 of the Base Indenture, whenever the Company is required to deliver notice to the Holders,
the Company will, by the date it is required to deliver such notice to the Holders, deliver a copy of such notice to the Trustee,
the Paying Agent, the Security Registrar and the Conversion Agent. Each notice to the Trustee, the Paying Agent, the Security Registrar
and the Conversion Agent shall be sufficiently given if in writing and mailed, first-class postage prepaid to the address most
recently sent by the Trustee, the Paying Agent, the Security Registrar or the Conversion Agent, as the case may be, to the Company.

 

Section 11.09   
Ratification of Base Indenture. The Base Indenture,
as supplemented by this Supplemental Indenture, is in all respects ratified and confirmed, and this Supplemental Indenture shall
be deemed part of the Base Indenture in the manner and to the extent herein provided. For the avoidance of doubt, each of the Company
and each Holder of Securities, by its acceptance of such Securities, acknowledges and agrees that all of the rights, privileges,
protections, immunities and benefits afforded to the Trustee under the Base Indenture are deemed to be incorporated herein, and
shall be enforceable by the Trustee hereunder, in each of its capacities hereunder as if set forth herein in full.

 

Section 11.10   
The Trustee. The recitals in this Supplemental Indenture
are made by the Company only and not by the Trustee, and all of the provisions contained in the Base Indenture in respect of the
rights, privileges, immunities, powers and duties of the Trustee shall be applicable in respect of the Securities and of this Supplemental
Indenture as fully and with like effect as set forth in full herein.

 

Section 11.11   
No Recourse Against Others. No director, officer,
employee, incorporator or stockholder of the Company shall have any liability for any obligations of the Company under the Securities,
the Indenture or any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder, by accepting
a Security, waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Securities.

 

[Remainder of the page intentionally
left blank]

 

    59

     

    

 

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

 

	 	TWO HARBORS INVESTMENT CORP
	 	 
	 	By:	 
	 	 	/s/ William Greenberg  
	 	 	Name: William Greenberg  
	 	 	Title: Chief Executive Officer and President

  

	 	THE BANK OF NEW YORK MELLON
 TRUST COMPANY, N.A., as Trustee
	 	 
	 	By:	 
	 	 	/s/ Manjari Purkayastha  
	 	 	Name: Manjari Purkayastha  
	 	 	Title: Vice President

  

    60

     

    

 

SCHEDULE A

 

The following table
sets forth the number of Additional Shares by which the Conversion Rate shall be increased pursuant to Section 4.06 based on the
Stock Price and Effective Date set forth below.

 

	 	Stock Price
	Effective Date	 	$6.15	 	$6.50	 	$6.75	 	$7.00	 	$7.38	 	$7.75	 	$8.00	 	$8.50	 	$9.00
	February 1, 2021	 	27.1002	 	21.0723	 	17.3096	 	14.0171	 	9.8198	 	6.5574	 	4.7600	 	2.0447	 	0.4322
	January 15, 2022	 	27.1002	 	21.0723	 	17.3096	 	13.9429	 	9.6572	 	6.3535	 	4.5538	 	1.8859	 	0.3633
	January 15, 2023	 	27.1002	 	20.6631	 	16.7274	 	13.3029	 	8.9892	 	5.7084	 	3.9500	 	1.4200	 	0.1289
	January 15, 2024	 	27.1002	 	19.5523	 	15.5274	 	12.0671	 	7.7886	 	4.6323	 	2.9963	 	0.8012	 	0.0000
	January 15, 2025	 	27.1002	 	18.8800	 	13.2933	 	9.7571	 	5.6111	 	2.8168	 	1.5175	 	0.1318	 	0.0000
	January 15, 2026	 	27.1002	 	18.3448	 	12.6467	 	7.3557	 	0.0000	 	0.0000	 	0.0000	 	0.0000	 	0.0000

 

    Schedule A-1

     

    

 

EXHIBIT A

 

[FORM OF FACE OF SECURITY]

 

[For Global Securities, include the following
legend:

 

THIS SECURITY IS A GLOBAL SECURITY WITHIN
THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE THEREOF. THIS SECURITY
MAY NOT BE EXCHANGED IN WHOLE OR IN PART FOR A SECURITY REGISTERED, AND NO TRANSFER OF THIS SECURITY IN WHOLE OR IN PART MAY BE
REGISTERED, IN THE NAME OF ANY PERSON OTHER THAN SUCH DEPOSITARY OR A NOMINEE THEREOF, EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED
IN THE INDENTURE.]

 

No.: [ ]

CUSIP: [•]

ISIN: [•]

 

Principal Amount $[ ]

[as revised by the Schedule of Increases

and Decreases in the Global Security attached hereto]1

 

Two Harbors Investment Corp.

6.25% Convertible Senior Notes due 2026

 

Two Harbors Investment
Corp., a Maryland corporation, promises to pay to [ ] [include “Cede & Co.” for Global Security] or registered
assigns, the principal amount of $[ ] on January 15, 2026 (the “Maturity Date”).

 

Interest Payment Dates:
January 15 and July 15, beginning on July 15, 2021.

 

Regular Record Dates:
January 1 and July 1.

 

Additional provisions
of this Security are set forth on the other side of this Security.

 

 

1
Include for Global Securities only.

 

    Exhibit A-1

     

    

 

IN WITNESS WHEREOF,
TWO HARBORS INVESTMENT CORP. has caused this instrument to be duly signed.

 

	 	TWO HARBORS INVESTMENT CORP
	 	 
	 	By:	   
	 	 	Name:  
	 	 	Title:

  

	Dated:		 

  

    Exhibit A-2

     

    

  

TRUSTEE’S CERTIFICATE OF AUTHENTICATION

 

The Bank of New York Mellon Trust Company,
N.A., as Trustee, certifies that this is one of the Securities referred to in the within-mentioned Indenture.

 

THE BANK OF NEW YORK MELLON TRUST COMPANY,
N.A., as Trustee

 

	By:		 
	 	Authorized Signatory	

  

	Dated:		 

 

    Exhibit A-3

     

    

 

[FORM OF REVERSE OF SECURITY]

 

TWO HARBORS INVESTMENT CORP.

6.25% Convertible Senior Notes due 2026

 

This Security is one
of a duly authorized issue of securities of the Company (herein called the “Securities”), issued under a Indenture
dated as of January 19, 2017 (herein called the “Base Indenture”), and as further supplemented by the Second
Supplemental Indenture, dated as of February 1, 2021 (herein called the “Supplemental Indenture” and the Base
Indenture, as supplemented by the Supplemental Indenture, the “Indenture”) by and between the Company and The
Bank of New York Mellon Trust Company, N.A., herein called the “Trustee”, and reference is hereby made to the
Indenture for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the
Trustee and the Holders of the Securities and of the terms upon which the Securities are, and are to be, authenticated and delivered.
This Security is not subject to redemption at the option of the Company prior to the Maturity Date and does not benefit from a
sinking fund.

 

As provided in and
subject to the provisions of the Indenture, upon the occurrence of a Fundamental Change, the Holder of this Security will have
the right, at such Holder’s option, to require the Company to purchase this Security, or any portion of this Security such
that the principal amount of this Security that is not purchased equals $1,000 or an integral multiple of $1,000 in excess thereof,
on the Fundamental Change Purchase Date at a price equal to the Fundamental Change Purchase Price for such Fundamental Change Purchase
Date.

 

As provided in and
subject to the provisions of the Indenture, the Holder hereof has the right, at any time prior to the Close of Business on the
second Scheduled Trading Day immediately preceding the Stated Maturity, to convert this Security or a portion of this Security
such that the principal amount of this Security that is not converted equals $1,000 or an integral multiple of $1,000 in excess
thereof, into shares of Common Stock in accordance with Article 4 of the Supplemental Indenture.

 

As provided in and
subject to the provisions of the Indenture, the Company will make all payments in respect of the Fundamental Change Purchase Price
for, and the principal amount of, this Security to the Holder that surrenders this Security to the Paying Agent to collect such
payments in respect of this Security. The Company will pay cash amounts in money of the United States that at the time of payment
is legal tender for payment of public and private debts.

 

The Indenture permits,
with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company
and the rights of the Holders of the Securities to be effected under the Indenture at any time by the Company and the Trustee with
the consent of the Holders of a majority in principal amount of the Securities at the time Outstanding. The Indenture also contains
provisions permitting the Holders of specified percentages in principal amount of the Securities at the time Outstanding, on behalf
of the Holders of all Securities, to waive compliance by the Company with certain provisions of the Indenture and certain past
Defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Security shall be conclusive
and binding upon such Holder and upon all future Holders of this Security and of any Security issued upon the registration of transfer
hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is made upon this Security.

 

    Exhibit A-4

     

    

 

As provided in and
subject to the provisions of the Indenture, the Holder of this Security shall not have the right to institute any proceeding with
respect to the Indenture, or for the appointment of a receiver or trustee, or for any other remedy thereunder, unless such Holder
shall have previously given the Trustee written notice of a continuing Event of Default with respect to the Security, the Holders
of not less than 25% in principal amount of the Securities at the time Outstanding shall have made written request to the Trustee
to institute proceedings in respect of such Event of Default as Trustee and offered the Trustee indemnity, and the Trustee shall
not have received from the Holders of a majority in principal amount of Securities at the time Outstanding a direction inconsistent
with such request, and shall have failed to institute any such proceeding, for 60 days after receipt of such notice, request and
offer of indemnity. The foregoing shall not apply to any suit instituted by the Holder of this Security for the enforcement of
any payment of principal hereof or interest hereon or amounts due upon conversion on or after the respective due dates expressed
herein.

 

No reference herein
to the Indenture and no provision of this Security or of the Indenture shall alter or impair the obligation of the Company, which
is absolute and unconditional, to pay or deliver, as the case may be, the principal of (including the Fundamental Change Purchase
Price), interest on and the consideration due upon conversion of, this Security at the time, place and rate, and in the coin and
currency, herein prescribed.

 

As provided in the
Indenture and subject to certain limitations therein set forth, the transfer of this Security is registrable in the Register, upon
surrender of this Security for registration of transfer at the office or agency of the Company in any place where the principal
of and interest on this Security are payable, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory
to the Company and the Security Registrar duly executed by, the Holder hereof or its attorney duly authorized in writing, and thereupon
one or more new Securities of this series and of like tenor, of authorized denominations and for the same aggregate principal amount,
will be issued to the designated transferee or transferees.

 

The Securities are
issuable only in registered form without coupons in denominations of $1,000 and integral multiples of $1,000 in excess thereof.
As provided in the Indenture and subject to certain limitations therein set forth, the Securities are exchangeable for a like aggregate
principal amount of Securities and of like tenor of a different authorized denomination, as requested by the Holder surrendering
the same.

 

Prior to due presentment
of this Security for registration of transfer, the Company, the Trustee and any agent of the Company or Trustee may treat the Person
in whose name the Security is registered as the owner hereof for all purposes, whether or not this Security be overdue, and neither
the Company, the Trustee nor any such agent shall be affected by notice to the contrary.

 

No service charge shall
be made for any such registration of transfer or exchange, but the Company may require payment of a sum sufficient to cover any
tax or other governmental charge payable in connection therewith.

 

All defined terms used
in this Security that are defined in the Indenture shall have the meanings assigned to them in the Indenture. If any provision
of this Security limits, qualifies or conflicts with a provision of the Indenture, such provision of the Indenture shall control.

 

    Exhibit A-5

     

    

 

ABBREVIATIONS

 

The following abbreviations,
when used in the inscription of the face of this Security, shall be construed as though they were written out in full.

 

	TEN COM - as tenants in common	UNIF GIFT MIN ACT Custodian 
	 	(Cust)
	 	 
	TEN ENT - as tenants by the entireties	(Minor)
	 	 
	JT TEN - as joint tenants with right of Survivorship and not	Uniform Gifts to Minors
	 	 
	as tenants in common	Act             (State)

  

Additional abbreviations may also be used
though not in the above list.

 

    Exhibit A-6

     

    

 

ANNEX A

 

[Include for Global Security]

 

SCHEDULE OF INCREASES AND DECREASES OF GLOBAL
SECURITY

 

Initial principal amount of Global Security:

 

	Date	 	 	Amount of Increase in principal amount of Global Security	 	Amount of Decrease in principal amount of Global Security	 	Principal amount of Global Security after Increase or Decrease	 	Notation by Security Registrar or Custodian
	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 	 

 

    Annex A-1

     

    

 

ATTACHMENT 1

 

[FORM OF NOTICE OF CONVERSION]

 

To: Two Harbors Investment Corp.

 

The undersigned Holder of this Security hereby
irrevocably exercises the option to convert this Security, or a portion hereof (which is such that the principal amount of the
portion of this Security that will not be converted equals $1,000 or an integral multiple of $1,000 in excess thereof) below designated
shares of Common Stock (and cash in lieu of fractional shares of Common Stock) in accordance with the terms of the Indenture referred
to in this Security, and directs that any cash payable and any shares of Common Stock issuable and deliverable upon conversion,
together with any Securities representing any unconverted principal amount hereof, be paid and/or issued and/or delivered, as the
case may be, to the registered Holder hereof unless a different name is indicated below.

 

Subject to certain exceptions set forth in
the Indenture, if this notice is being delivered on a date after the Close of Business on a Regular Record Date and prior to the
Open of Business on the Interest Payment Date corresponding to such Regular Record Date, this notice must be accompanied by payment
of an amount equal to the interest payable on such Interest Payment Date on the principal amount of this Security to be converted.
If any shares of Common Stock are to be issued in the name of a Person other than the undersigned, the undersigned will pay all
transfer taxes payable with respect to such issuance and transfer as set forth in the Indenture.

 

Principal amount to be converted (in an integral
multiple of $1,000, if less than all): 

	 	 
	 	 
	 	 
	 	Signature(s)

 

 

Signature(s) must be guaranteed by an institution
which is a member of

one of the following recognized signature Guarantee Programs:

 

(i)       The
Securities Transfer Agent Medallion Program (STAMP); (ii) The New York Stock Exchange Medallion Program (MNSP); (iii)
The Stock Exchange Medallion Program (SEMP); or (iv) another guarantee program acceptable to the Trustee. 

	 	 
	 	 
	 	 
	 	Signature Guarantee

  

    Annex A-2

     

    

 

The following information must be provided
to complete the conversion of your Securities to Common Stock.

 

	 	 
	(Name)	 

 

		 
	(Address)	 

  

Please print Name and Address

 

(including zip code number)

 

Social Security or other Taxpayer

 

Identifying

 

	Number		 

  

    Annex A-3

     

    

 

ATTACHMENT 2

 

[FORM OF FUNDAMENTAL CHANGE PURCHASE NOTICE]

 

To: Two Harbors Investment Corp.

 

The undersigned registered owner of this Security
hereby acknowledges receipt of a notice from Two Harbors Investment Corp. (the “Company”) as to the occurrence
of a Fundamental Change with respect to the Company and specifying the Fundamental Change Purchase Date and requests and instructs
the Company to pay to the registered Holder hereof in accordance with the applicable provisions of the Indenture referred to in
this Security (i) the entire principal amount of this Security, or the portion thereof (that is such that the portion not to be
purchased has a principal amount equal to $1,000 or an integral multiple of $1,000 in excess thereof) below designated, and (ii)
if such Fundamental Change Purchase Date does not occur during the period after a Regular Record Date and on or prior to the Interest
Payment Date corresponding to such Regular Record Date, accrued and unpaid interest, if any, thereon to, but excluding, such Fundamental
Change Purchase Date.

 

In the case of certificated Securities, the
certificate numbers of the Securities to be purchased are as set forth below:

  

	Dated:		 

  

	 	Signature(s)
	 	 
	 	Social Security or Other Taxpayer Identification Number

  

principal amount to be repaid (if less than
all):

 

$ ,000

 

NOTICE: The
signature on the Fundamental Change Purchase Notice must correspond with the name as written upon the face of the Security in every
particular without alteration or enlargement or any change whatever.

 

    Annex A-4

     

    

 

ATTACHMENT
3

 

[FORM OF ASSIGNMENT AND TRANSFER]

 

For value received
hereby sell(s), assign(s) and transfer(s) unto (Please insert social security or Taxpayer Identification Number of assignee) the
within Security, and hereby irrevocably constitutes and appoints to transfer the said Security on the books of the Company, with
full power of substitution in the premises. 

	 	 
	 	 
	 	 
	 	Signature(s)

  

Signature(s) must be guaranteed
by an institution which is a member of one of the following recognized signature Guarantee Programs:

  

(i) The Securities Transfer
Agent Medallion Program (STAMP); (ii) The New York Stock Exchange Medallion Program (MNSP); (iii) The Stock Exchange
Medallion Program (SEMP); or (iv) another guarantee program

 

    Annex A-5Exhibit
4.1

 

NEITHER
THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE
COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT
OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO,
THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS. THIS SECURITY AND
THE SECURITIES ISSUABLE UPON EXERCISE OF THIS SECURITY MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN
SECURED BY SUCH SECURITIES.

 

COMMON
STOCK PURCHASE WARRANT

 

Cancer
Genetics, Inc.

 

	Warrant
    Shares: _______	Issue
    Date: February 1, 2021
	 	 
	 	Initial
    Exercise Date: February 1, 2021

 

THIS
SERIES B COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, _____________ or
its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions
hereinafter set forth, at any time on or after the date set forth above (the “Initial Exercise Date”) and on
or prior to 5:00 p.m. (New York City time) on August 3, 2026 (the “Termination Date”) but not thereafter, to
subscribe for and purchase from Cancer Genetics, Inc., a Delaware corporation (the “Company”), up to ______
shares (as subject to adjustment hereunder, the “Warrant Shares”) of the Company’s Common Stock. The
purchase price of one share of Common Stock under this Warrant shall be equal to the Exercise Price, as defined in Section 2(b).

 

Section
1. Definitions. Capitalized terms used and not otherwise defined herein shall have the meanings set forth in that certain
Securities Purchase Agreement (the “Purchase Agreement”), dated January 28, 2021, among the Company and the
purchasers signatory thereto.

 

    	 	1	 

    	 	 	 

    

 

Section
2. Exercise.

 

a)
Exercise of Warrant. Exercise of the purchase rights represented by this Warrant may be made, in whole or in part, at any
time or times on or after the Initial Exercise Date and on or before the Termination Date by delivery to the Company of a duly
executed facsimile copy or PDF copy submitted by e-mail (or e-mail attachment) of the Notice of Exercise in the form annexed hereto
(the “Notice of Exercise”). Within the earlier of (i) two (2) Trading Days and (ii) the number of Trading Days
comprising the Standard Settlement Period (as defined in Section 2(d)(i) herein) following the date of exercise as aforesaid,
the Holder shall deliver the aggregate Exercise Price for the Warrant Shares specified in the applicable Notice of Exercise by
wire transfer or cashier’s check drawn on a United States bank unless the cashless exercise procedure specified in Section
2(c) below is specified in the applicable Notice of Exercise. No ink-original Notice of Exercise shall be required, nor shall
any medallion guarantee (or other type of guarantee or notarization) of any Notice of Exercise be required. Notwithstanding anything
herein to the contrary, the Holder shall not be required to physically surrender this Warrant to the Company until the Holder
has purchased all of the Warrant Shares available hereunder and the Warrant has been exercised in full, in which case, the Holder
shall surrender this Warrant to the Company for cancellation within three (3) Trading Days of the date on which the final Notice
of Exercise is delivered to the Company. Partial exercises of this Warrant resulting in purchases of a portion of the total number
of Warrant Shares available hereunder shall have the effect of lowering the outstanding number of Warrant Shares purchasable hereunder
in an amount equal to the applicable number of Warrant Shares purchased. The Holder and the Company shall maintain records showing
the number of Warrant Shares purchased and the date of such purchases. The Company shall deliver any objection to any Notice of
Exercise within one (1) Trading Day of receipt of such notice. The Holder and any assignee, by acceptance of this Warrant,
acknowledge and agree that, by reason of the provisions of this paragraph, following the purchase of a portion of the Warrant
Shares hereunder, the number of Warrant Shares available for purchase hereunder at any given time may be less than the amount
stated on the face hereof.

 

b)
Exercise Price. The exercise price per share of Common Stock under this Warrant shall be $3.50, subject to adjustment
hereunder (the “Exercise Price”).

 

c)
Cashless Exercise. If at the time of exercise hereof there is no effective registration statement registering, or the prospectus
contained therein is not available for the resale of the Warrant Shares by the Holder, then this Warrant may also be exercised,
in whole or in part, at such time by means of a “cashless exercise” in which the Holder shall be entitled to receive
a number of Warrant Shares equal to the quotient obtained by dividing [(A-B) (X)] by (A), where:

 

	 	(A)	= 	as applicable: (i) the VWAP on the Trading Day immediately
preceding the date of the applicable Notice of Exercise if such Notice of Exercise is (1) both executed and delivered pursuant
to Section 2(a) hereof on a day that is not a Trading Day or (2) both executed and delivered pursuant to Section 2(a) hereof on
a Trading Day prior to the opening of “regular trading hours” (as defined in Rule 600(b)(68) of Regulation NMS promulgated
under the federal securities laws) on such Trading Day, (ii) at the option of the Holder, either (y) the VWAP on the Trading Day
immediately preceding the date of the applicable Notice of Exercise or (z) the Bid Price of the Common Stock on the principal
Trading Market as reported by Bloomberg L.P. as of the time of the Holder’s execution of the applicable Notice of Exercise
if such Notice of Exercise is executed during “regular trading hours” on a Trading Day and is delivered within two
(2) hours thereafter (including until two (2) hours after the close of “regular trading hours” on a Trading Day) pursuant
to Section 2(a) hereof or (iii) the VWAP on the date of the applicable Notice of Exercise if the date of such Notice of Exercise
is a Trading Day and such Notice of Exercise is both executed and delivered pursuant to Section 2(a) hereof after the close of
“regular trading hours” on such Trading Day;

 

    	 	2	 

    	 	 	 

    

 

	 	(B)	= 	 the Exercise Price of this Warrant, as adjusted hereunder;
and

 

	 	(X)	= 	 the number of Warrant Shares that would be issuable
upon exercise of this Warrant in accordance with the terms of this Warrant if such exercise were by means of a cash exercise rather
than a cashless exercise.

 

“Bid
Price” means, for any date, the price determined by the first of the following clauses that applies: (a) if the Common
Stock is then listed or quoted on a Trading Market, the bid price of the Common Stock for the time in question (or the nearest
preceding date) on the Trading Market on which the Common Stock is then listed or quoted as reported by Bloomberg L.P. (based
on a Trading Day from 9:30 a.m. (New York City time) to 4:02 p.m. (New York City time)), (b) if OTCQB or OTCQX is not a Trading
Market, the volume weighted average price of the Common Stock for such date (or the nearest preceding date) on OTCQB or OTCQX
as applicable, (c) if the Common Stock is not then listed or quoted for trading on OTCQB or OTCQX and if prices for the Common
Stock are then reported on The Pink Open Market (or a similar organization or agency succeeding to its functions of reporting
prices), the most recent bid price per share of the Common Stock so reported, or (d) in all other cases, the fair market value
of a share of Common Stock as determined by an independent appraiser selected in good faith by the Holders of a majority in interest
of the Securities then outstanding and reasonably acceptable to the Company, the fees and expenses of which shall be paid by the
Company.

 

“VWAP”
means, for any date, the price determined by
the first of the following clauses that applies: (a) if the Common Stock is then listed or quoted on a Trading Market, the daily
volume weighted average price of the Common Stock for such date (or the nearest preceding date) on the Trading Market on which
the Common Stock is then listed or quoted as reported by Bloomberg L.P. (based on a Trading Day from 9:30 a.m. (New York City
time) to 4:02 p.m. (New York City time)), (b) if OTCQB or OTCQX is not a Trading Market, the volume weighted average price of
the Common Stock for such date (or the nearest preceding date) on OTCQB or OTCQX as applicable, (c) if the Common Stock is not
then listed or quoted for trading on OTCQB or OTCQX and if prices for the Common Stock are then reported on The Pink Open Market
(or a similar organization or agency succeeding to its functions of reporting prices), the most recent bid price per share of
the Common Stock so reported, or (d) in all other cases, the fair market value of a share of Common Stock as determined by an
independent appraiser selected in good faith by the Holders of a majority in interest of the Securities then outstanding and reasonably
acceptable to the Company, the fees and expenses of which shall be paid by the Company.

 

    	 	3	 

    	 	 	 

    

 

If
Warrant Shares are issued in such a cashless exercise, the parties acknowledge and agree that in accordance with Section 3(a)(9)
of the Securities Act, the Warrant Shares shall take on the characteristics of the Warrants being exercised, and the holding period
of the Warrant Shares being issued may be tacked on to the holding period of this Warrant. The Company agrees not to take any
position contrary to this Section 2(c).

 

Notwithstanding
anything herein to the contrary, on the Termination Date, this Warrant shall be automatically exercised via cashless exercise
pursuant to this Section 2(c).

 

d)
Mechanics of Exercise.

 

i.
Delivery of Warrant Shares Upon Exercise. The Company shall cause the Warrant Shares purchased hereunder to be transmitted
by the Transfer Agent to the Holder by crediting the account of the Holder’s or its designee’s balance account with
The Depository Trust Company through its Deposit or Withdrawal at Custodian system (“DWAC”) if the Company
is then a participant in such system and either (A) there is an effective registration statement permitting the issuance of the
Warrant Shares to or resale of the Warrant Shares by the Holder or (B) the Warrant Shares are eligible for resale by the Holder
without volume or manner-of-sale limitations pursuant to Rule 144 (assuming cashless exercise of the Warrants), and otherwise
by physical delivery of a certificate, registered in the Company’s share register in the name of the Holder or its designee,
for the number of Warrant Shares to which the Holder is entitled pursuant to such exercise to the address specified by the Holder
in the Notice of Exercise by the date that is the earliest of (i) two (2) Trading Days after the delivery to the Company of the
Notice of Exercise, (ii) one (1) Trading Day after delivery of the aggregate Exercise Price to the Company and (iii) the number
of Trading Days comprising the Standard Settlement Period after the delivery to the Company of the Notice of Exercise (such date,
the “Warrant Share Delivery Date”). Upon delivery of the Notice of Exercise, 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 of delivery of the Warrant Shares, provided that payment of the aggregate Exercise Price (other than
in the case of a cashless exercise) is received by the Warrant Share Delivery Date. If the Company fails for any reason to deliver
to the Holder the Warrant Shares subject to a Notice of Exercise by the Warrant Share Delivery Date, the Company shall pay to
the Holder, in cash, as liquidated damages and not as a penalty, for each $1,000 of Warrant Shares subject to such exercise (based
on the VWAP of the Common Stock on the date of the applicable Notice of Exercise), $10 per Trading Day (increasing to $20 per
Trading Day on the fifth Trading Day after such liquidated damages begin to accrue) for each Trading Day after such Warrant Share
Delivery Date until such Warrant Shares are delivered or Holder rescinds such exercise. The Company agrees to maintain a transfer
agent that is a participant in the FAST program so long as this Warrant remains outstanding and exercisable. As used herein, “Standard
Settlement Period” means the standard settlement period, expressed in a number of Trading Days, on the Company’s
primary Trading Market with respect to the Common Stock as in effect on the date of delivery of the Notice of Exercise.

 

    	 	4	 

    	 	 	 

    

 

ii.
Delivery of New Warrants Upon Exercise. If this Warrant shall have been exercised in part, the Company shall, at the request
of a Holder and upon surrender of this Warrant certificate, at the time of delivery of the Warrant Shares, deliver to the Holder
a new Warrant evidencing the rights of the Holder to purchase the unpurchased Warrant Shares called for by this Warrant, which
new Warrant shall in all other respects be identical with this Warrant.

 

iii.
Rescission Rights. If the Company fails to cause the Transfer Agent to transmit to the Holder the Warrant Shares pursuant
to Section 2(d)(i) by the Warrant Share Delivery Date, then the Holder will have the right to rescind such exercise.

 

iv.
Compensation for Buy-In on Failure to Timely Deliver Warrant Shares Upon Exercise. In addition to any other rights available
to the Holder, if the Company fails to cause the Transfer Agent to transmit to the Holder the Warrant Shares in accordance with
the provisions of Section 2(d)(i) above pursuant to an exercise on or before the Warrant Share Delivery Date, and if after such
date the Holder is required by its broker to purchase (in an open market transaction or otherwise) or the Holder’s brokerage
firm otherwise purchases, shares of Common Stock to deliver in satisfaction of a sale by the Holder of the Warrant Shares which
the Holder anticipated receiving upon such exercise (a “Buy-In”), then the Company shall (A) pay in cash to
the Holder the amount, if any, by which (x) the Holder’s total purchase price (including brokerage commissions, if any)
for the shares of Common Stock so purchased exceeds (y) the amount obtained by multiplying (1) the number of Warrant Shares that
the Company was required to deliver to the Holder in connection with the exercise at issue times (2) the price at which the sell
order giving rise to such purchase obligation was executed, and (B) at the option of the Holder, either reinstate the portion
of the Warrant and equivalent number of Warrant Shares for which such exercise was not honored (in which case such exercise shall
be deemed rescinded) or deliver to the Holder the number of shares of Common Stock that would have been issued had the Company
timely complied with its exercise and delivery obligations hereunder. For example, if the Holder purchases Common Stock having
a total purchase price of $11,000 to cover a Buy-In with respect to an attempted exercise of shares of Common Stock with an aggregate
sale price giving rise to such purchase obligation of $10,000, under clause (A) of the immediately preceding sentence the Company
shall be required to pay the Holder $1,000. The Holder shall provide the Company written notice indicating the amounts payable
to the Holder in respect of the Buy-In and, upon request of the Company, evidence of the amount of such loss. Nothing herein shall
limit a Holder’s right to pursue any other remedies available to it hereunder, at law or in equity including, without limitation,
a decree of specific performance and/or injunctive relief with respect to the Company’s failure to timely deliver shares
of Common Stock upon exercise of the Warrant as required pursuant to the terms hereof.

 

    	 	5	 

    	 	 	 

    

 

v.
No Fractional Shares or Scrip. No fractional shares or scrip representing fractional shares shall be issued upon the exercise
of this Warrant. As to any fraction of a share which the Holder would otherwise be entitled to purchase upon such exercise, the
Company shall, at its election, either pay a cash adjustment in respect of such final fraction in an amount equal to such fraction
multiplied by the Exercise Price or round up to the next whole share.

 

vi.
Charges, Taxes and Expenses. Issuance of Warrant Shares shall be made without charge to the Holder for any issue or transfer
tax or other incidental expense in respect of the issuance of such Warrant Shares, all of which taxes and expenses shall be paid
by the Company, and such Warrant Shares shall be issued in the name of the Holder or in such name or names as may be directed
by the Holder; provided, however, that in the event that Warrant Shares are to be issued in a name other than the
name of the Holder, this Warrant when surrendered for exercise shall be accompanied by the Assignment Form attached hereto duly
executed by the Holder and the Company may require, as a condition thereto, the payment of a sum sufficient to reimburse it for
any transfer tax incidental thereto. The Company shall pay all Transfer Agent fees required for same-day processing of any Notice
of Exercise and all fees to the Depository Trust Company (or another established clearing corporation performing similar functions)
required for same-day electronic delivery of the Warrant Shares.

 

vii.
Closing of Books. The Company will not close its stockholder books or records in any manner which prevents the timely exercise
of this Warrant, pursuant to the terms hereof.

 

    	 	6	 

    	 	 	 

    

 

e)
Holder’s Exercise Limitations. The Company shall not effect any exercise of this Warrant, and a Holder shall not
have the right to exercise any portion of this Warrant, pursuant to Section 2 or otherwise, to the extent that after giving effect
to such issuance after exercise as set forth on the applicable Notice of Exercise, the Holder (together with the Holder’s
Affiliates, and any other Persons acting as a group together with the Holder or any of the Holder’s Affiliates (such Persons,
“Attribution Parties”)), would beneficially own in excess of the Beneficial Ownership Limitation (as defined
below). For purposes of the foregoing sentence, the number of shares of Common Stock beneficially owned by the Holder and its
Affiliates and Attribution Parties shall include the number of shares of Common Stock issuable upon exercise of this Warrant with
respect to which such determination is being made, but shall exclude the number of shares of Common Stock which would be issuable
upon (i) exercise of the remaining, nonexercised portion of this Warrant beneficially owned by the Holder or any of its Affiliates
or Attribution Parties and (ii) exercise or conversion of the unexercised or nonconverted portion of any other securities of the
Company (including, without limitation, any other Common Stock Equivalents) subject to a limitation on conversion or exercise
analogous to the limitation contained herein beneficially owned by the Holder or any of its Affiliates or Attribution Parties.
Except as set forth in the preceding sentence, for purposes of this Section 2(e), beneficial ownership shall be calculated in
accordance with Section 13(d) of the Exchange Act and the rules and regulations promulgated thereunder, it being acknowledged
by the Holder that the Company is not representing to the Holder that such calculation is in compliance with Section 13(d) of
the Exchange Act and the Holder is solely responsible for any schedules required to be filed in accordance therewith. To the extent
that the limitation contained in this Section 2(e) applies, the determination of whether this Warrant is exercisable (in relation
to other securities owned by the Holder together with any Affiliates and Attribution Parties) and of which portion of this Warrant
is exercisable shall be in the sole discretion of the Holder, and the submission of a Notice of Exercise shall be deemed to be
the Holder’s determination of whether this Warrant is exercisable (in relation to other securities owned by the Holder together
with any Affiliates and Attribution Parties) and of which portion of this Warrant is exercisable, in each case subject to the
Beneficial Ownership Limitation, and the Company shall have no obligation to verify or confirm the accuracy of such determination.
In addition, a determination as to any group status as contemplated above shall be determined in accordance with Section 13(d)
of the Exchange Act and the rules and regulations promulgated thereunder. For purposes of this Section 2(e), in determining the
number of outstanding shares of Common Stock, a Holder may rely on the number of outstanding shares of Common Stock as reflected
in (A) the Company’s most recent periodic or annual report filed with the Commission, as the case may be, (B) a more recent
public announcement by the Company or (C) a more recent written notice by the Company or the Transfer Agent setting forth the
number of shares of Common Stock outstanding. Upon the written or oral request of a Holder, the Company shall within one (1) Trading
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 Warrant, by the Holder or its Affiliates or Attribution Parties since the date as of which such number
of outstanding shares of Common Stock was reported. The “Beneficial Ownership Limitation” shall be [4.99%/9.99%]
of the number of shares of the Common Stock outstanding immediately after giving effect to the issuance of shares of Common Stock
issuable upon exercise of this Warrant. The Holder, upon notice to the Company, may increase or decrease the Beneficial Ownership
Limitation provisions of this Section 2(e), provided that the Beneficial Ownership Limitation in no event exceeds 9.99% of the
number of shares of the Common Stock outstanding immediately after giving effect to the issuance of shares of Common Stock upon
exercise of this Warrant held by the Holder and the provisions of this Section 2(e) shall continue to apply. Any increase in the
Beneficial Ownership Limitation will not be effective until the 61st day after such notice is delivered to the Company.
The provisions of this paragraph shall be construed and implemented in a manner otherwise than in strict conformity with the terms
of this Section 2(e) 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. The limitations contained in this paragraph shall apply to a successor holder of this Warrant.

 

    	 	7	 

    	 	 	 

    

 

Section
3. Certain Adjustments.

 

a)
Stock Dividends and Splits. If the Company, at any time while this Warrant is outstanding: (i) pays a stock dividend or
otherwise makes a distribution or distributions on shares of its Common Stock or any other equity or equity equivalent securities
payable in shares of Common Stock (which, for avoidance of doubt, shall not include any shares of Common Stock issued by the Company
upon exercise of this Warrant), (ii) subdivides outstanding shares of Common Stock into a larger number of shares, (iii) combines
(including by way of reverse stock split) outstanding shares of Common Stock into a smaller number of shares, or (iv) issues by
reclassification of shares of the Common Stock any shares of capital stock of the Company, then in each case the Exercise Price
shall be multiplied by a fraction of which the numerator shall be the number of shares of Common Stock (excluding treasury shares,
if any) outstanding immediately before such event and of which the denominator shall be the number of shares of Common Stock outstanding
immediately after such event, and the number of shares issuable upon exercise of this Warrant shall be proportionately adjusted
such that the aggregate Exercise Price of this Warrant shall remain unchanged. Any adjustment made pursuant to this Section 3(a)
shall become effective immediately after the record date for the determination of stockholders entitled to receive such dividend
or distribution and shall become effective immediately after the effective date in the case of a subdivision, combination or re-classification.

 

b)
Subsequent Rights Offerings. In addition to any adjustments pursuant to Section 3(a) above, if at any time the Company
grants, issues or sells any Common Stock Equivalents or rights to purchase stock, warrants, securities or other property pro rata
to the record holders of any class of shares 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 exercise hereof, including without limitation, the Beneficial Ownership Limitation) 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 (provided, however, that to the extent that the Holder’s right to participate in any such Purchase
Right would result in the Holder exceeding the Beneficial Ownership Limitation, then the Holder shall not be entitled to participate
in such Purchase Right to such extent (or beneficial ownership of such shares of Common Stock as a result of such Purchase Right
to such extent) and such Purchase Right to such extent shall be held in abeyance for the Holder until such time, if ever, as its
right thereto would not result in the Holder exceeding the Beneficial Ownership Limitation).

 

    	 	8	 

    	 	 	 

    

 

c)
Pro Rata Distributions. During such time as this Warrant is outstanding, 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, the Holder shall
be entitled to participate in such Distribution to the same extent that the Holder would have participated therein 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 exercise hereof, including without limitation, the Beneficial Ownership Limitation) immediately before the date of which a
record is taken for such Distribution, 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 participation in such Distribution (provided, however, that to the extent that
the Holder’s right to participate in any such Distribution would result in the Holder exceeding the Beneficial Ownership
Limitation, then the Holder shall not be entitled to participate in such Distribution to such extent (or in the beneficial ownership
of any shares of Common Stock as a result of such Distribution to such extent) and the portion of such Distribution shall be held
in abeyance for the benefit of the Holder until such time, if ever, as its right thereto would not result in the Holder exceeding
the Beneficial Ownership Limitation).

 

d)
Fundamental Transaction. If, at any time while this Warrant is outstanding, (i) the Company, directly or indirectly, in
one or more related transactions effects any merger or consolidation of the Company with or into another Person, (ii) the Company
(and all of its Subsidiaries, taken as a whole), directly or indirectly, effects any sale, lease, license, assignment, transfer,
conveyance or other disposition of all or substantially all of its assets in one or a series of related transactions, (iii) any,
direct or indirect, purchase offer, tender offer or exchange offer (whether by the Company or another Person) is completed pursuant
to which holders of Common Stock are permitted to sell, tender or exchange their shares for other securities, cash or property
and has been accepted by the holders of 50% or more of the outstanding Common Stock, (iv) the Company, directly or indirectly,
in one or more related transactions effects any reclassification, reorganization or recapitalization of the Common Stock or any
compulsory share exchange pursuant to which the Common Stock is effectively converted into or exchanged for other securities,
cash or property, or (v) the Company, directly or indirectly, in one or more related transactions consummates a stock or share
purchase agreement or other business combination (including, without limitation, a reorganization, recapitalization, spin-off,
merger or scheme of arrangement) with another Person or group of Persons whereby such other Person or group acquires more than
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 or share purchase agreement
or other business combination) (each a “Fundamental Transaction”), then, upon any subsequent exercise of this
Warrant, the Holder shall have the right to receive, for each Warrant Share that would have been issuable upon such exercise immediately
prior to the occurrence of such Fundamental Transaction, at the option of the Holder (without regard to any limitation in Section
2(e) on the exercise of this Warrant), the number of shares of Common Stock of the successor or acquiring corporation or of the
Company, if it is the surviving corporation, and any additional consideration (the “Alternate Consideration”)
receivable as a result of such Fundamental Transaction by a holder of the number of shares of Common Stock for which this Warrant
is exercisable immediately prior to such Fundamental Transaction (without regard to any limitation in Section 2(e) on the exercise
of this Warrant). For purposes of any such exercise, the determination of the Exercise Price shall be appropriately adjusted to
apply to such Alternate Consideration based on the amount of Alternate Consideration issuable in respect of one share of Common
Stock in such Fundamental Transaction, and the Company shall apportion the Exercise Price among the Alternate Consideration in
a reasonable manner reflecting the relative value of any different components of the Alternate Consideration. If holders of Common
Stock are given any choice as to the securities, cash or property to be received in a Fundamental Transaction, then the Holder
shall be given the same choice as to the Alternate Consideration it receives upon any exercise of this Warrant following such
Fundamental Transaction. The Company shall cause any successor entity in a Fundamental Transaction in which the Company is not
the survivor (the “Successor Entity”) to assume 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 3(d) pursuant to written agreements
in form and substance reasonably satisfactory to the Holder and approved by the Holder (without unreasonable delay) prior to such
Fundamental Transaction and shall, at the option of the Holder, deliver to the Holder in exchange for this Warrant a security
of the Successor Entity evidenced by a written instrument substantially similar in form and substance to this Warrant which is
exercisable for a corresponding number of shares of capital stock of such Successor Entity (or its parent entity) 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 with an exercise price which applies the exercise price hereunder
to such shares of capital stock (but taking into account the relative value of the shares of Common Stock pursuant to such Fundamental
Transaction and the value of such shares of capital stock, such number of shares of capital stock and such exercise price being
for the purpose of protecting the economic value of this Warrant immediately prior to the consummation of such Fundamental Transaction),
and which is reasonably satisfactory in form and substance to the Holder. Upon the occurrence of any such 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 and the other Transaction Documents 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 and the other Transaction Documents with the same effect as if such Successor Entity had been named
as the Company herein.

 

    	 	9	 

    	 	 	 

    

 

e)
Calculations. All calculations under this Section 3 shall be made to the nearest cent or the nearest 1/100th of a share,
as the case may be. For purposes of this Section 3, the number of shares of Common Stock deemed to be issued and outstanding as
of a given date shall be the sum of the number of shares of Common Stock (excluding treasury shares, if any) issued and outstanding.

 

f)
Notice to Holder.

 

i.
Adjustment to Exercise Price. Whenever the Exercise Price is adjusted pursuant to any provision of this Section 3, the
Company shall promptly deliver to the Holder by facsimile or email a notice setting forth the Exercise Price after such adjustment
and any resulting adjustment to the number of Warrant Shares and setting forth a brief statement of the facts requiring such adjustment.

 

ii.
Notice to Allow Exercise by Holder. If (A) the Company shall declare a dividend (or any other distribution in whatever
form) on the Common Stock, (B) the Company shall declare a special nonrecurring cash dividend on or a redemption of the Common
Stock, (C) the Company shall authorize the granting to all holders of the Common Stock rights or warrants to subscribe for or
purchase any shares of capital stock of any class or of any rights, (D) the approval of any stockholders of the Company shall
be required in connection with any reclassification of the Common Stock, any consolidation or merger to which the Company is a
party, any sale or transfer of all or substantially all of the assets of the Company, or any compulsory share exchange whereby
the Common Stock is converted into other securities, cash or property, or (E) the Company shall authorize the voluntary or involuntary
dissolution, liquidation or winding up of the affairs of the Company, then, in each case, the Company shall cause to be delivered
by facsimile or email to the Holder at its last facsimile number or email address as it shall appear upon the Warrant Register
of the Company, at least five calendar days prior to the applicable record or effective date hereinafter specified, a notice stating
(x) the date on which a record is to be taken for the purpose of such dividend, distribution, redemption, rights or warrants,
or if a record is not to be taken, the date as of which the holders of the Common Stock of record to be entitled to such dividend,
distributions, redemption, rights or warrants are to be determined or (y) the date on which such reclassification, consolidation,
merger, sale, transfer or share exchange is expected to become effective or close, and the date as of which it is expected that
holders of the Common Stock of record shall be entitled to exchange their shares of the Common Stock for securities, cash or other
property deliverable upon such reclassification, consolidation, merger, sale, transfer or share exchange; provided that the failure
to deliver such notice or any defect therein or in the delivery thereof shall not affect the validity of the corporate action
required to be specified in such notice. To the extent that any notice provided in this Warrant constitutes, or contains, material,
non-public information regarding the Company or any of the Subsidiaries, the Company shall simultaneously file such notice with
the Commission pursuant to a Current Report on Form 8-K. The Holder shall remain entitled to exercise this Warrant during the
period commencing on the date of such notice to the effective date of the event triggering such notice except as may otherwise
be expressly set forth herein.

 

    	 	10	 

    	 	 	 

    

 

Section
4. Transfer of Warrant.

 

a)
Transferability. Subject to compliance with any applicable securities laws and the conditions set forth in Section 4(d)
hereof and to the provisions of Section 4.1 of the Purchase Agreement, this Warrant and all rights hereunder (including, without
limitation, any registration rights) are transferable, in whole or in part, upon surrender of this Warrant at the principal office
of the Company or its designated agent, together with a written assignment of this Warrant substantially in the form attached
hereto duly executed by the Holder or its agent or attorney and funds sufficient to pay any transfer taxes payable upon the making
of such transfer. Upon such surrender and, if required, such payment, the Company shall execute and deliver a new Warrant or Warrants
in the name of the assignee or assignees, as applicable, and in the denomination or denominations specified in such instrument
of assignment, and shall issue to the assignor a new Warrant evidencing the portion of this Warrant not so assigned, and this
Warrant shall promptly be cancelled. Notwithstanding anything herein to the contrary, the Holder shall not be required to physically
surrender this Warrant to the Company unless the Holder has assigned this Warrant in full, in which case, the Holder shall surrender
this Warrant to the Company within three (3) Trading Days of the date on which the Holder delivers an assignment form to the Company
assigning this Warrant in full. The Warrant, if properly assigned in accordance herewith, may be exercised by a new holder for
the purchase of Warrant Shares without having a new Warrant issued.

 

b)
New Warrants. This Warrant may be divided or combined with other Warrants upon presentation hereof at the aforesaid office
of the Company, together with a written notice specifying the names and denominations in which new Warrants are to be issued,
signed by the Holder or its agent or attorney. Subject to compliance with Section 4(a), as to any transfer which may be involved
in such division or combination, the Company shall execute and deliver a new Warrant or Warrants in exchange for the Warrant or
Warrants to be divided or combined in accordance with such notice. All Warrants issued on transfers or exchanges shall be dated
the Issue Date of this Warrant and shall be identical with this Warrant except as to the number of Warrant Shares issuable pursuant
thereto.

 

c)
Warrant Register. The Company shall register this Warrant, upon records to be maintained by the Company for that purpose
(the “Warrant Register”), in the name of the record Holder hereof from time to time. The Company may deem and
treat the registered Holder of this Warrant as the absolute owner hereof for the purpose of any exercise hereof or any distribution
to the Holder, and for all other purposes, absent actual notice to the contrary.

 

    	 	11	 

    	 	 	 

    

 

d)
Transfer Restrictions. If, at the time of the surrender of this Warrant in connection with any transfer of this Warrant,
the transfer of this Warrant shall not be either (i) registered pursuant to an effective registration statement under the Securities
Act and under applicable state securities or blue sky laws or (ii) eligible for resale without volume or manner-of-sale restrictions
or current public information requirements pursuant to Rule 144, the Company may require, as a condition of allowing such transfer,
that the Holder or transferee of this Warrant, as the case may be, comply with the provisions of Section 5.7 of the Purchase Agreement.

 

e)
Representation by the Holder. The Holder, by the acceptance hereof, represents and warrants that it is acquiring this Warrant
and, upon any exercise hereof, will acquire the Warrant Shares issuable upon such exercise, for its own account and not with a
view to or for distributing or reselling such Warrant Shares or any part thereof in violation of the Securities Act or any applicable
state securities law, except pursuant to sales registered or exempted under the Securities Act.

 

Section
5. Miscellaneous.

 

a)
No Rights as Stockholder Until Exercise; No Settlement in Cash. This Warrant does not entitle the Holder to any voting
rights, dividends or other rights as a stockholder of the Company prior to the exercise hereof as set forth in Section 2(d)(i),
except as expressly set forth in Section 3. Without limiting the rights of a Holder to receive Warrant Shares on a “cashless
exercise,” and to receive the cash payments contemplated pursuant to Sections 2(d)(i) and 2(d)(iv), in no event will the
Company be required to net cash settle an exercise of this Warrant.

 

b)
Loss, Theft, Destruction or Mutilation of Warrant. The Company covenants that upon receipt by the Company of evidence reasonably
satisfactory to it of the loss, theft, destruction or mutilation of this Warrant or any stock certificate relating to the Warrant
Shares, and in case of loss, theft or destruction, of indemnity or security reasonably satisfactory to it (which, in the case
of the Warrant, shall not include the posting of any bond), and upon surrender and cancellation of such Warrant or stock certificate,
if mutilated, the Company will make and deliver a new Warrant or stock certificate of like tenor and dated as of such cancellation,
in lieu of such Warrant or stock certificate.

 

c)
Saturdays, Sundays, Holidays, etc. If the last or appointed day for the taking of any action or the expiration of any right
required or granted herein shall not be a Trading Day, then, such action may be taken or such right may be exercised on the next
succeeding Trading Day.

 

    	 	12	 

    	 	 	 

    

 

d)
Authorized Shares.

 

The
Company covenants that, during the period the Warrant is outstanding, it will reserve from its authorized and unissued Common
Stock a sufficient number of shares to provide for the issuance of the Warrant Shares upon the exercise of any purchase rights
under this Warrant. The Company further covenants that its issuance of this Warrant shall constitute full authority to its officers
who are charged with the duty of issuing the necessary Warrant Shares upon the exercise of the purchase rights under this Warrant.
The Company will take all such reasonable action as may be necessary to assure that such Warrant Shares may be issued as provided
herein without violation of any applicable law or regulation, or of any requirements of the Trading Market upon which the Common
Stock may be listed. The Company covenants that all Warrant Shares which may be issued upon the exercise of the purchase rights
represented by this Warrant will, upon exercise of the purchase rights represented by this Warrant and payment for such Warrant
Shares in accordance herewith, be duly authorized, validly issued, fully paid and nonassessable and free from all taxes, liens
and charges created by the Company in respect of the issue thereof (other than taxes in respect of any transfer occurring contemporaneously
with such issue).

 

Except
and to the extent as waived or consented to by the Holder, the Company shall not by any action, including, without limitation,
amending its certificate of incorporation or through any reorganization, transfer of assets, consolidation, merger, 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, but will at all times in good faith assist in the carrying out of all such terms and in the taking of all
such actions as may be necessary or appropriate to protect the rights of Holder as set forth in this Warrant against impairment.
Without limiting the generality of the foregoing, the Company will (i) not increase the par value of any Warrant Shares above
the amount payable therefor upon such exercise immediately prior to such increase in par value, (ii) take all such action as may
be necessary or appropriate in order that the Company may validly and legally issue fully paid and nonassessable Warrant Shares
upon the exercise of this Warrant and (iii) use commercially reasonable efforts to obtain all such authorizations, exemptions
or consents from any public regulatory body having jurisdiction thereof, as may be, necessary to enable the Company to perform
its obligations under this Warrant.

 

Before
taking any action which would result in an adjustment in the number of Warrant Shares for which this Warrant is exercisable or
in the Exercise Price, the Company shall obtain all such authorizations or exemptions thereof, or consents thereto, as may be
necessary from any public regulatory body or bodies having jurisdiction thereof.

 

e)
Jurisdiction. All questions concerning the construction, validity, enforcement and interpretation of this Warrant shall
be determined in accordance with the provisions of the Purchase Agreement.

 

f)
Restrictions. The Holder acknowledges that the Warrant Shares acquired upon the exercise of this Warrant, if not registered,
and the Holder does not utilize cashless exercise, will have restrictions upon resale imposed by state and federal securities
laws.

 

    	 	13	 

    	 	 	 

    

 

g)
Nonwaiver and Expenses. No course of dealing or any delay or failure to exercise any right hereunder on the part of Holder
shall operate as a waiver of such right or otherwise prejudice the Holder’s rights, powers or remedies, notwithstanding
the fact that the right to exercise this Warrant terminates on the Termination Date. Without limiting any other provision of this
Warrant or the Purchase Agreement, if the Company willfully and knowingly fails to comply with any provision of this Warrant,
which results in any material damages to the Holder, the Company shall pay to the Holder such amounts as shall be sufficient to
cover any costs and expenses including, but not limited to, reasonable attorneys’ fees, including those of appellate proceedings,
incurred by the Holder in collecting any amounts due pursuant hereto or in otherwise enforcing any of its rights, powers or remedies
hereunder.

 

h)
Notices. Any notice, request or other document required or permitted to be given or delivered to the Holder by the Company
shall be delivered in accordance with the notice provisions of the Purchase Agreement.

 

i)
Limitation of Liability. No provision hereof, in the absence of any affirmative action by the Holder to exercise this Warrant
to purchase Warrant Shares, and no enumeration herein of the rights or privileges of the Holder, shall give rise to any liability
of the Holder for the purchase price of any Common Stock or as a stockholder of the Company, whether such liability is asserted
by the Company or by creditors of the Company.

 

j)
Remedies. The Holder, in addition to being entitled to exercise all rights granted by law, including recovery of damages,
will be entitled to specific performance of its rights under this Warrant. The Company agrees that monetary damages would not
be adequate compensation for any loss incurred by reason of a breach by it of the provisions of this Warrant and hereby agrees
to waive and not to assert the defense in any action for specific performance that a remedy at law would be adequate.

 

k)
Successors and Assigns. Subject to applicable securities laws, this Warrant and the rights and obligations evidenced hereby
shall inure to the benefit of and be binding upon the successors and permitted assigns of the Company and the successors and permitted
assigns of Holder. The provisions of this Warrant are intended to be for the benefit of any Holder from time to time of this Warrant
and shall be enforceable by the Holder or holder of Warrant Shares.

 

l)
Amendment. This Warrant may be modified or amended or the provisions hereof waived with the written consent of the Company,
on the one hand, and the Holders of a majority in interest of the Series B Warrants issued on this date then outstanding, on the
other hand.

 

m)
Severability. Wherever possible, each provision of this Warrant shall be interpreted in such manner as to be effective
and valid under applicable law, but if any provision of this Warrant shall be prohibited by or invalid under applicable law, such
provision shall be ineffective to the extent of such prohibition or invalidity, without invalidating the remainder of such provisions
or the remaining provisions of this Warrant.

 

n)
Headings. The headings used in this Warrant are for the convenience of reference only and shall not, for any purpose, be
deemed a part of this Warrant.

 

********************

 

(Signature
Page Follows)

 

    	 	14	 

    	 	 	 

    

 

IN
WITNESS WHEREOF, the Company has caused this Warrant to be executed by its officer thereunto duly authorized as of the date first
above indicated.

 

	 	Cancer
    Genetics, Inc.
	 	 	 
	 	By:	           
	 	Name:	 
	 	Title:	 

 

    	 	15	 

    	 	 	 

    

 

NOTICE
OF EXERCISE

 

	To:	Cancer
    Genetics, Inc.

 

(1)
The undersigned hereby elects to purchase ________ Warrant Shares of the Company pursuant to the terms of the attached Warrant
(only if exercised in full), and tenders herewith payment of the exercise price in full, together with all applicable transfer
taxes, if any.

 

(2)
Payment shall take the form of (check applicable box):

 

[  ]
in lawful money of the United States; or

 

[  ]
if permitted the cancellation of such number of Warrant Shares as is necessary, in accordance with the formula set forth in subsection
2(c), to exercise this Warrant with respect to the maximum number of Warrant Shares purchasable pursuant to the cashless exercise
procedure set forth in subsection 2(c).

 

(3)
Please issue said Warrant Shares in the name of the undersigned or in such other name as is specified below:

 

_______________________________

 

The
Warrant Shares shall be delivered to the following DWAC Account Number:

 

_______________________________

 

_______________________________

 

_______________________________

 

(4)
Accredited Investor. The undersigned is an “accredited investor” as defined in Regulation D promulgated under
the Securities Act of 1933, as amended.

 

[SIGNATURE
OF HOLDER]

 

Name
of Investing Entity: ___________________________________________________________________________

 

Signature
of Authorized Signatory of Investing Entity: _____________________________________________________

 

Name
of Authorized Signatory: _______________________________________________________________________

 

Title
of Authorized Signatory: ________________________________________________________________________

 

Date:
___________________________________________________________________________________________

 

    	 	 	 

    	 	 	 

    

 

EXHIBIT
B

 

ASSIGNMENT
FORM

 

(To
assign the foregoing Warrant, execute this form and supply required information. Do not use this form to exercise the Warrant
to purchase shares.)

 

FOR
VALUE RECEIVED, the foregoing Warrant and all rights evidenced thereby are hereby assigned to

 

	Name:	 
	 	(Please
    Print)
	 	 
	Address:	 
		(Please
    Print)
	 	 
	Phone
    Number:	                                                                                                              
	 	 
	Email
    Address:	                                                                                                               
	 	 
	Dated:
    _______________ __, ______	 
	 	 
	Holder’s
    Signature:                                                    	 
	 	 
	Holder’s
    Address:

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