Document:

THE SALE OF THIS
NOTE HAS NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY,
THIS NOTE (AND ANY BENEFICIAL INTEREST HEREIN) MAY NOT BE OFFERED, RESOLD OR OTHERWISE TRANSFERRED, EXCEPT:

		(A)	TO THE COMPANY OR ANY SUBSIDIARY THEREOF;

		(B)	PURSUANT TO A REGISTRATION STATEMENT THAT HAS BECOME EFFECTIVE UNDER THE SECURITIES ACT; OR

		(C)	UNDER ANY AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT (INCLUDING,
IF AVAILABLE, THE EXEMPTION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT).

PRIOR TO ANY TRANSFER
PURSUANT TO THE FOREGOING CLAUSE (C), THE COMPANY RESERVES THE RIGHT TO REQUIRE THE DELIVERY OF SUCH CERTIFICATIONS, LEGAL OPINIONS
OR OTHER INFORMATION AS THE COMPANY MAY REASONABLY REQUIRE AND MAY RELY UPON TO CONFIRM THAT SUCH TRANSFER IS BEING MADE PURSUANT
TO AN EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND APPLICABLE SECURITIES
LAWS OF ANY OTHER JURISDICTION. NO REPRESENTATION IS MADE AS TO THE AVAILABILITY OF ANY EXEMPTION FROM THE REGISTRATION REQUIREMENTS
OF THE SECURITIES ACT.

XTANT MEDICAL HOLDINGS,
INC.

CONVERTIBLE PROMISSORY
NOTE

	$809,613.67	Date
of Issuance: April 14, 2016

 

FOR VALUE RECEIVED,
Xtant Medical Holdings, Inc., a Delaware corporation (the “Company”), promises to pay to OrbiMed Royalty Opportunities II, LP, and its assigns, (the “Holder”) the principal sum of $809,613.67 (the “Principal
Amount”), in the manner provided herein. Commencing on the date hereof, and continuing until such time as the Principal
Amount is repaid in full, interest shall accrue on the Principal Amount outstanding at the rate of six percent (6.00%) per annum.
This Note is subject to the following terms and conditions.

 

    	 	 -1-	 

     

    

TABLE
OF CONTENTS

Page

	Article 1 DEFINITIONS AND INCORPORATION BY REFERENCE	4
	Section 1.01   Definitions	4
	Section 1.02   Other Definitions	8
	Section 1.03   Rules of Construction	8
	Article 2 PAYMENT TERMS, TRANSFER RESTRICTIONS AND NOTE REPLACEMENT	9
	Section 2.01   Payments	9
	Section 2.02   Replacement Note	10
	Article 3 REPURCHASE AT THE OPTION OF THE HOLDER	11
	Section 3.01   Fundamental Change Permits Holder to Require the Company to Repurchase this Note	11
	Section 3.02   Fundamental Change Notice	12
	Section 3.03   Fundamental Change Repurchase Notice	13
	Section 3.04   Withdrawal of Fundamental Change Repurchase Notice	14
	Section 3.05   Effect of Fundamental Change Repurchase Notice	14
	Section 3.06   Note Repurchased in Part	14
	Section 3.07   Covenant to Comply With Securities Laws Upon Repurchase of Note	15
	Article 4 COVENANTS	15
	Section 4.01   Payment of Note.	15
	Section 4.02   144A Information	15
	Section 4.03   Reports	15
	Section 4.04   Additional Interest	15
	Section 4.05   Compliance Certificate	16
	Section 4.06   Corporate Existence	16
	Section 4.07   Par Value Limitation.	17
	Section 4.08   Stay, Extension and Usury Laws	17
	Section 4.09   Further Instruments and Acts	17
	 	 

 

    	 	 -2-	 

     

    

	Article 5 CONSOLIDATION, MERGER AND SALE OF ASSETS	17
	Section 5.01   Company May Consolidate, Merge or Sell Its Assets Only on Certain Terms	17
	Section 5.02   Successor Substituted	18
	Article 6 DEFAULTS AND REMEDIES	18
	Section 6.01   Events of Default	18
	Section 6.02   Acceleration	20
	Section 6.03   Other Remedies	21
	Section 6.04   Sole Remedy for Failure to Report	21
	Section 6.05   Waiver of Past Defaults	22
	Article 7 SATISFACTION AND DISCHARGE	22
	Section 7.01   Discharge of Liability on Note	22
	Article 8 CONVERSIONS	22
	Section 8.01   Right To Convert	22
	Section 8.02   Conversion Procedures	22
	Section 8.03   Settlement Upon Conversion	24
	Section 8.04   Common Stock Issued Upon Conversion	25
	Section 8.05   Adjustment of Conversion Rate	25
	Section 8.06   Voluntary Adjustments	34
	Section 8.07   Adjustments Upon Certain Fundamental Changes	34
	Section 8.08   Effect of Recapitalization, Reclassification, Consolidation, Merger or Sale	36
	Article 9 NO RIGHT OF REDEMPTION AT THE OPTION OF THE COMPANY	38
	Article 10	38
	Section 10.01   Notices	38
	Section 10.02   Separability Clause	39
	Section 10.03   Governing Law and Waiver of Jury Trial	39
	Section 10.04   No Recourse Against Others	39
	Section 10.05   Calculations	39
	Section 10.06   Successors	39
	Section 10.07   Table of Contents; Headings	39
	Section 10.08   Submission to Jurisdiction	39
	Section 10.09   Legal Holidays	40
	Section 10.10   No Security Interest Created	40
	Section 10.11   Benefits of Note	40
	Section 10.12   Withholding Taxes	40
	Section 10.13   Amendment and Waiver.  .	40

 

    	 	 -3-	 

     

    

Article
1

DEFINITIONS AND INCORPORATION BY REFERENCE

Section
1.01        Definitions.

“Additional
Interest” has the meaning ascribed to it in the Registration Rights Agreement.

“Affiliate”
of any specified Person means any other Person, directly or indirectly, controlling or controlled by or under direct or indirect
common control with such specified Person. For the purposes of this definition, “control,” when used with respect
to any specified Person, means the power to direct or cause the direction of the management and policies of such Person, directly
or indirectly, whether through the ownership of voting securities, by contract or otherwise; and the terms “controlling”
and “controlled” have meanings correlative to the foregoing.

“Bankruptcy
Law” means Title 11, United States Code, or any similar U.S. federal, state or non-U.S. law for the relief of debtors.

“Board
of Directors” means the board of directors of the Company or a committee of such board duly authorized to act for it.

“Business
Day” means 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 or executive order to close or 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.

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

“Common
Stock” means the shares of the common stock of the Company, $0.000001 par value per share.

“Company”
means the party named as such in the first paragraph of this Note until a successor or assignee replaces it pursuant to the applicable
provisions hereof and, thereafter, means the successor or assignee.

“Conversion
Price” means, at any time, (i) $1,000 divided by (ii) the Conversion Rate in effect at such time.

“Conversion
Rate” means, initially, 344.8276 shares of Common Stock per $1,000 principal amount of this Note, subject to adjustment
as provided herein, or in the case of a principal amount or portion of a principal amount that is not a multiple of $1,000, an
equivalent pro rata number of shares.

    	 	 -4-	 

     

    

“Custodian”
means any receiver, trustee, assignee, liquidator, custodian or similar official under any Bankruptcy Law.

“Default”
means any event which is (or after notice, passage of time or both would be) an Event of Default.

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

“Fundamental
Change” means an event that will be deemed to occur if any of the following occurs:

(a)                
a “person” or “group” within the meaning of Section 13(d) of the Exchange
Act, other than the Company or the Subsidiaries, has become the direct or indirect “beneficial owner” (as defined below)
of shares of the Company’s common equity representing more than 50% of the voting power of the Company’s common equity;

(b)                
the consummation of:

(i)                  
any sale, lease or other transfer in one transaction or a series of transactions of all or
substantially all of the consolidated assets of the Company and the Subsidiaries to any person; or

(ii)                
any transaction or series of related transactions in connection with which (whether by means
of exchange, liquidation, consolidation, merger, combination, reclassification, recapitalization, acquisition or otherwise) all
of the Common Stock is exchanged for, converted into, acquired for, or constitutes solely the right to receive, other securities,
other property, assets or cash, but excluding any merger, consolidation, share exchange or acquisition of the Company with or by
another Person pursuant to which the Persons that “beneficially owned” (as defined below), directly or indirectly,
the shares of the Company’s Voting Stock immediately prior to such transaction beneficially own, directly or indirectly,
immediately after such transaction, shares of the surviving, continuing or acquiring corporation’s Voting Stock representing
more than 50% of the total outstanding voting power of all outstanding classes of Voting Stock of the surviving, continuing or
acquiring corporation in substantially the same proportions vis-à-vis each other as immediately prior to such transaction;
or

(c)                
the Company’s stockholders approve any plan or proposal for the liquidation or dissolution
of the Company.

A transaction or event
described in clause (a) or (b) above will not constitute a Fundamental Change, however, if at least 90% of the consideration received
or to be received by the holders of the Common Stock, excluding cash payments for fractional shares or dissenters rights, in connection
with the transaction or transactions, consists of shares of common stock traded on any of the NASDAQ Capital Market, the NASDAQ
Global Market, the NASDAQ Global Select Market, the NYSE MKT LLC or the New York Stock Exchange (or any of their respective successors)
or which will be so traded or quoted when issued or exchanged in connection with such transaction or event and as a result of such
transaction or event, this Note become convertible or exchangeable solely into such consideration (excluding cash payable in lieu
of any fractional share) in accordance with Section 8.08 hereof.

    	 	 -5-	 

     

    

For the purposes
of this definition of “Fundamental Change,” whether a person is a “beneficial owner” or whether
shares are “beneficially owned” will be determined in accordance with Rule 13d-3 under the Exchange Act.

“Holder”
means the party named as such in the first paragraph of this Note.

“Issue
Date” means April 14, 2016.

“Last Reported
Sale Price” of the Common Stock on any date means the closing sale or trading price (or, if no closing sale or trading
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) per share on such date 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 such date, the “Last Reported Sale Price” of the Common Stock will be the last quoted
bid price per share for the Common Stock in the over-the-counter market on such 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 per share for the Common Stock on the relevant date from each of at least three (3)
nationally recognized independent investment banking firms selected by the Company for this purpose. The “Last Reported Sale
Price” will be determined without regard to after-hours trading or any other trading outside of regular trading session hours.

“Market
Disruption Event” means the occurrence or existence during the one-half hour period ending on the scheduled close of
trading on the principal U.S. national or regional securities exchange or other market on which the Common Stock is listed for
trading or trades of any material 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 futures contracts relating to
the Common Stock.

“Officer”
means the Chairman of the Board, the Vice Chairman, the Chief Executive Officer, the President, the Chief Financial Officer, any
Executive Vice President, any Senior Vice President, any Vice President, the Treasurer or the Secretary of the Company.

“Officers’
Certificate” means a written certificate containing the information specified in Sections 4.05, 5.01 or 7.01 hereof,
signed in the name of the Company by any two Officers, and delivered to the Holder; provided, that, if such certificate
is given pursuant to Section 4.05 hereof, one of the Officers signing such certificate must be the Chief Financial Officer of the
Company.

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

“Opinion
of Counsel” means a written opinion containing the information specified in Sections 5.01 and 7.01 hereof, from legal
counsel satisfactory to the Holder. The counsel may be an employee of, or counsel to, the Company who is satisfactory to the Holder.

    	 	 -6-	 

     

    

“Person”
means any individual, corporation, limited liability company, partnership, joint venture, association, joint-stock company, trust,
unincorporated organization, or government or any agency or political subdivision thereof.

“Registration
Rights Agreement” means the Registration Rights Agreement, dated as of the date hereof, among the Company and the Holder.

“Rule 144”
means Rule 144 under the Securities Act (or any successor provision), as it may be amended from time to time.

“Rule 144A”
means Rule 144A under the Securities Act (or any successor provision), as it may be amended from time to time.

“SEC”
means the Securities and Exchange Commission.

“Securities
Act” means the Securities Act of 1933, as amended.

“Significant
Subsidiary” means any Subsidiary that is a “significant subsidiary” of the Company within the meaning of
Rule 1-02(w) of Regulation S-X promulgated under the Exchange Act.

“Stock
Price” means, for any Make-Whole Fundamental Change, (i) if the holders of the Common Stock receive only cash in consideration
for their shares of Common Stock in such Make-Whole Fundamental Change and such Make-Whole Fundamental Change is of the type described
in clause (b) of the definition of Fundamental Change, the amount of cash paid per share of the Common Stock in such Make-Whole
Fundamental Change; and (ii) otherwise, the average of the Last Reported Sale Price per share of the Common Stock over the five
consecutive Trading Days ending on, and including, the Trading Day immediately preceding the Make-Whole Fundamental Change Effective
Date for such Make-Whole Fundamental Change.

“Subsidiary”
means a Person more than 50% of the outstanding Voting Stock of which is owned, directly or indirectly, by the Company or by one
or more other Subsidiaries of the Company, or by the Company and one or more other Subsidiaries of the Company.

“Trading
Day” means a day on which (i) trading in the Common Stock (or other security for which a Last Reported Sale Price must
be determined) generally occurs on the NASDAQ Global Market or, if the Common Stock (or such other security) is not then listed
on the NASDAQ Global Market, on the principal other U.S. national or regional securities exchange on which the Common Stock (or
such other security) is then listed or, if the Common Stock (or such other security) is not then listed on a U.S. national or regional
securities exchange, on the principal other market (including, without limitation, the OTCQX marketplace) on which the Common Stock
(or such other security) is then listed or admitted for trading; and (ii) there is no Market Disruption Event; provided,
however, that if the Common Stock (or such other security) is not so listed or traded, then “Trading Day” means
a Business Day.

“Uniform
Commercial Code” means the New York Uniform Commercial Code as in effect on the Issue Date.

    	 	 -7-	 

     

    

“Voting
Stock” of a Person means Capital Stock of such Person of the class or classes pursuant to which the holders thereof have
the general voting power under ordinary circumstances to elect at least a majority of the board of directors, managers or trustees
of such Person (irrespective of whether or not at the time Capital Stock of any other class or classes will have or might have
voting power by reason of the happening of any contingency).

Section
1.02        Other
Definitions.

	
        Term:
	
        Section
        Defined in:

	“Additional Shares”	8.07(a)
	“Averaging Period”	8.05(e)
	“Conversion Consideration”	8.03(a)(i)
	“Conversion Date” 	8.02(a)
	“Conversion Notice”	8.02(a)
	“Defaulted Amount”	2.01(b)
	“Default Interest” 	2.01(b)
	“Effective Date”	1.01(a)(x)(III)
	“Event of Default”	6.01(a)
	“Ex-Dividend Date”	1.01(a)(x)(IV)
	“Expiration Date”	8.05(e)
	“Expiration Time”	8.05(e)
	“Fundamental Change Notice”	3.02(a)
	“Fundamental Change Notice Date”	3.02(a)
	“Fundamental Change Repurchase Date”	3.01(c)
	“Fundamental Change Repurchase Notice”	3.03(a)(i)
	“Fundamental Change Repurchase Price”	3.01(b)
	“Interest Payment Date”	2.01(a)(ii)
	“Make-Whole Fundamental Change”	8.07(a)
	“Make-Whole Fundamental Change “Effective Date”	8.07(b)
	“Maturity Date”	2.01(a)(i)
	“Reference Property”	8.08(a)
	“Reference Property Unit”	8.08(a)
	“Regular Record Date”	2.01(a)(ii)
	“Reorganization Event”	5.01
	“Reorganization Successor Corporation”	5.01(a)(ii)
	“Reporting Event of Default”	6.04(a)
	“Special Interest”	6.04(a)
	“Spin-Off”	8.05(c)(ii)
	“Successor Person”	8.08(a)
	“Valuation Period”	8.05(c)(ii)

  

Section
1.03        Rules
of Construction. In this Note:

(a)                
a term has the meaning assigned to it;

    	 	 -8-	 

     

    

(b)                
an accounting term not otherwise defined has the meaning assigned to it and will be construed
in accordance with U.S. generally accepted accounting principles;

(c)                
“or” is not exclusive;

(d)                
“including” means including, without limitation;

(e)                
words in the singular include the plural, and words in the plural include the singular, unless
the context requires otherwise;

(f)                 
“herein,” “hereof” and other words of similar import
refer to this Indenture as a whole and not to any particular Article, Section or other subdivision of this Indenture,
unless the context requires otherwise;

(g)                
all references to $, dollars, cash payments or money refer to United States currency; and

(h)                
unless the context requires otherwise, all references to interest on this Note will (i) include
any Additional Interest payable pursuant to the Registration Rights Agreement and any Special Interest payable pursuant to Section
6.04 hereof; and (ii) for the avoidance of doubt, not include any Default Interest payable on a Defaulted Amount pursuant to Article
2 hereof.

Article
2

PAYMENT TERMS, TRANSFER RESTRICTIONS AND NOTE REPLACEMENT

Section
2.01        Payments.

(a)                
General.

(i)                                 
Payment at Maturity. Unless earlier paid or deemed paid pursuant to any of Sections
3.05 or 8.03 hereof, this Note will mature on July 15, 2021 (the “Maturity Date”) and, on the Maturity Date,
the Company will pay the Holder $1,000 in cash for each $1,000 principal amount of this Note (and in the case of a principal amount
or portion of a principal amount that is not a multiple of $1,000, an equivalent pro rata amount), together with accrued and unpaid
interest to, but not including, the Maturity Date (with such interest to be payable to the Holder as of the Close of Business on
the Regular Record Date immediately preceding the Maturity Date).

(ii)                               
Payment of Interest. This Note will accrue interest at a rate equal to 6.00% 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 until, subject to Section 2.01(b), the date the principal amount of this Note is paid or deemed to be paid,
as the case may be, pursuant to clause (i) of this Section 2.01(a) or any of Sections 3.05 or 8.03 hereof. Additional Interest
will accrue on this Note to the extent provided in the Registration Rights Agreement and Special Interest will accrue on this Note
to the extent provided in Section 6.04 hereof, in each case in addition to interest accruing on this Note pursuant to the immediately
preceding sentence.

    	 	 -9-	 

     

    

Except as otherwise
provided herein (including Section 3.01(b) and Section 8.02(d)), interest will be payable in arrears on July 15, 2016 and, thereafter,
semi-annually in arrears on January 15 and July 15 of each year (each, an “Interest Payment Date”) to the Holder
as of the Close of Business on the January 1 or July 1, as the case may be, and whether or not on a Business Day, immediately preceding
the applicable Interest Payment Date (each such date, a “Regular Record Date”). Interest on this Note that has
been converted or repurchased after a Regular Record Date and on or before the related Interest Payment Date will be paid in the
manner set forth in Section 3.01(b) and Section 8.02(d), as applicable. Interest will be computed on the basis of a 360-day year
comprised of twelve 30-day months.

(iii)                                                      
Method of Payment. The Company will pay the principal of and the Fundamental Change
Repurchase Price for this Note by check or wire transfer, in the manner set forth below, to the Holder on the relevant payment
date upon surrender thereof to the Company and, if applicable, satisfaction of any other requirements therefor set forth in Article
3. The Company will pay interest due, on an Interest Payment Date, on (and, subject to the immediately preceding sentence, the
principal of or the Fundamental Change Repurchase Price for) this Note to the Holder (i) by check mailed to the Holder’s
registered address; or (ii) if the Holder delivers, not later than the Regular Record Date relating to such Interest Payment Date
(or, with respect to the payment of the principal of or the Fundamental Change Repurchase Price for such Note, the date that is
fifteen (15) days immediately preceding the Maturity Date or related Fundamental Change Repurchase Date, as applicable), a written
request to the Company that the Company make such payments by wire transfer to an account of the Holder within the United States,
by wire transfer of immediately available funds to such account, which request shall remain in effect until the Holder notifies
the Company, in writing, to the contrary.

(b)                
Defaulted Amounts. Whenever any amount payable on this Note (including, the principal
of, the Fundamental Change Repurchase Price for, and interest on, this Note) has become due and payable, but the Company fails
to punctually pay or to duly provide for such amount (any such amount, a “Defaulted Amount”), in each case regardless
of whether such failure constitutes an Event of Default, then such Defaulted Amount will accrue interest (“Default Interest”)
at a rate equal to 6.00% per annum plus 100 basis points from, and including, such payment date and to, but excluding, the date
on which such Defaulted Amount is paid by the Company, which Default Interest shall be payable by the Company on demand. 

(c)                
Acknowledgement and Agreement by the Holder. The Holder, by accepting this Note, acknowledges
and agrees to comply with the restrictions set forth in this Note’s legend.

Section
2.02        Replacement
Note.

If (a)(i) this Note
is mutilated and surrendered to the Company; or (ii) the Holder claims that this Note has been lost, destroyed or stolen and provides
the Company with (A) evidence of such loss, theft or destruction that is reasonably satisfactory to the Company; and (B) any amount
or kind of security or indemnity that the Company requests to protect itself from any loss that it may suffer upon replacement
of this Note; and, in either case, (b) such Holder satisfies any other reasonable requirements of the Company, including the payment
of any tax or other governmental charge that may be imposed in connection with the replacement of this Note, then, unless the Company
receives notice that this Note has been acquired by a bona fide purchaser, the Company will promptly execute and deliver to the
Holder a replacement Note having the same aggregate principal amount as this Note that was mutilated or claimed to be lost, destroyed
or stolen.

    	 	 -10-	 

     

    

Every new Note issued
pursuant to this Section 2.02 in exchange for a mutilated Note, or in lieu of a destroyed, lost or stolen Note, will constitute
an original contractual obligation of the Company and any other obligor upon this Note, regardless of whether the mutilated, destroyed,
lost or stolen Note will be at any time enforceable by anyone, and will be entitled to all of the benefits, and subject to all
the limitations, set forth herein.

Article
3

REPURCHASE AT THE OPTION OF THE HOLDER

Section
3.01        Fundamental
Change Permits Holder to Require the Company to Repurchase this Note.

(a)                
General. If a Fundamental Change occurs at any time prior to the Maturity Date, the
Holder will have the right, at its option, to require the Company to repurchase this Note, or any portion thereof, on the Fundamental
Change Repurchase Date for such Fundamental Change for an amount of cash equal to the Fundamental Change Repurchase Price for such
Fundamental Change Repurchase Date and this Note.

(b)                
Fundamental Change Repurchase Price. The “Fundamental Change Repurchase Price”
means, for this Note to be repurchased on any Fundamental Change Repurchase Date, a price equal to 100% of the principal amount
of this Note, plus accrued and unpaid interest, if any, on this Note to, but excluding, such Fundamental Change Repurchase Date;
provided, however, that if such Fundamental Change Repurchase Date occurs after a Regular Record Date, but on or
prior to the Interest Payment Date corresponding to such Regular Record Date, the Fundamental Change Repurchase Price for this
Note will be 100% of the principal amount of this Note, and accrued and unpaid interest, if any, on this Note to, but excluding,
such Interest Payment Date (assuming, solely for these purposes, that this Note remained outstanding through such Interest Payment
Date) will be payable, on such Fundamental Change Repurchase Date, to the Holder as of the Close of Business on such Regular Record
Date.

(c)                
Fundamental Change Repurchase Date. The “Fundamental Change Repurchase Date”
means, for any Fundamental Change, the date specified by the Company in the Fundamental Change Notice for such Fundamental Change,
which date will be not less than twenty (20) Business Days, nor more than thirty five (35) Business Days, immediately following
the Fundamental Change Notice Date for such Fundamental Change.

    	 	 -11-	 

     

    

Section
3.02                        
Fundamental Change Notice.

(a)                
General. On or before the Business Day immediately following the effective date of
a Fundamental Change, the Company will deliver to the Holder written notice of such Fundamental Change and of the resulting repurchase
right (the “Fundamental Change Notice,” and the date of such delivery, the “Fundamental Change Notice
Date”). 

The Fundamental Change
Notice for each Fundamental Change will specify, as applicable:

(A)            
briefly, the events causing such Fundamental Change;

(B)             
the effective date of such Fundamental Change;

(C)             
the last date on which the Holder may exercise its right to require the Company to repurchase
this Note as a result of such Fundamental Change under this Article 3;

(D)            
the procedures that the Holder must follow to require the Company to repurchase this Note;

(E)             
the Fundamental Change Repurchase Price for each $1,000 principal amount this Note for such
Fundamental Change (and in the case of a principal amount or portion of a principal amount that is not a multiple of $1,000, the
equivalent pro rata amount);

(F)              
the Fundamental Change Repurchase Date for such Fundamental Change;

(G)            
in the event that a Fundamental Change Repurchase Notice has been duly tendered in respect
of this Note and not validly withdrawn, the Fundamental Change Repurchase Price which will be paid promptly following the later
of the Fundamental Change Repurchase Date and the time this Note is surrendered for repurchase;

(H)            
the Conversion Rate in effect on the Fundamental Change Notice Date for such Fundamental Change
and the Last Reported Sale Price of the Common Stock on the Trading Day immediately preceding the Fundamental Change Notice Date;

(I)               
if applicable, any adjustments that will be made to the Conversion Rate as a result of such
Fundamental Change, including any Additional Shares by which the Conversion Rate will be increased pursuant to Section 8.07 hereof
in the event that the Holder converts this Note “in connection with” such Fundamental Change;

(J)               
that in the event that a Fundamental Change Repurchase Notice has been delivered by the Holder,
this Note may be converted only if the Holder withdraws such Fundamental Change Repurchase Notice in accordance with the terms
of this Note or to the extent any portion of this Note are not subject to such Fundamental Change Repurchase Notice;

    	 	 -12-	 

     

    

(K)            
the procedures for withdrawing a Fundamental Change Repurchase Notice;

(L)             
that if this Note or portion of this Note is subject to a validly delivered Fundamental Change
Repurchase Notice, unless the Company defaults in paying the Fundamental Change Repurchase Price for this Note or portion of this
Note, interest, if any, on this Note or portion of this Note will cease to accrue on and after the Fundamental Change Repurchase
Date; and

(b)                
Failure or Defect. Notwithstanding anything provided elsewhere in this Note, neither
the failure of the Company to deliver a Fundamental Change Notice nor a defect in a Fundamental Change Notice delivered by the
Company will limit the repurchase rights of the Holder under this Article 3 or impair or otherwise affect the validity of any proceedings
relating to the repurchase of this Note pursuant to this Article 3.

Section
3.03        Fundamental
Change Repurchase Notice.

(a)                
General. To exercise its repurchase rights under Section 3.01(a) hereof with respect
to this Note pursuant to a Fundamental Change, the Holder must:

(i)                                 
deliver to the Company, by the Close of Business on the second (2nd) Business Day immediately
preceding the Fundamental Change Repurchase Date, subject to extension to comply with applicable law, a duly completed “Fundamental
Change Repurchase Notice,” substantially in the form set forth in Exhibit A hereto (a “Fundamental Change
Repurchase Notice”) setting forth that the Holder is tendering this Note for repurchase; and

(ii)                               
deliver this Note to the Company by physical delivery together with any endorsements or other
documents reasonably requested by the Company.

(b)                
Contents of Fundamental Change Repurchase Notice. The Fundamental Change Repurchase
Notice for this Note must state:

(i)                                 
if this Note is to be repurchased in part, the portion of the principal amount of this Note
to be repurchased; and

(ii)                               
that this Note will be repurchased by the Company pursuant to the provisions of this Article
3.

(c)                
Effect of Improper Notice. Unless and until the Company receives a validly delivered
Fundamental Change Repurchase Notice with respect to this Note, together with this Note, in a form that conforms in all material
aspects with the description contained in such Fundamental Change Repurchase Notice, the Holder will not be entitled to receive
the Fundamental Change Repurchase Price for this Note.

    	 	 -13-	 

     

    

Section
3.04                        
Withdrawal of Fundamental Change Repurchase Notice

(a)               
General. After the Holder delivers a Fundamental Change Repurchase Notice with respect
to this Note, the Holder may withdraw such Fundamental Change Repurchase Notice (in whole or in part) with respect to this Note
or any portion of this Note by delivering to the Company a written notice of withdrawal prior to the Close of Business on the second
(2nd) Business Day immediately preceding the Fundamental Change Repurchase Date. Any such withdrawal notice must state the principal
amount of this Note, if any, that remains subject to the Fundamental Change Repurchase Notice.

(b)              
Return of Note. Upon receipt of a validly delivered withdrawal notice, the Company
will promptly return this Note or portion of this Note to the Holder, in the amount specified in such withdrawal notice.

Section
3.05        Effect
of Fundamental Change Repurchase Notice

(a)                
General. If the Holder validly delivers to the Company a Fundamental Change Repurchase
Notice (together with all necessary endorsements) with respect to this Note, the Holder may no longer convert this Note unless
and until the Holder validly withdraws such Fundamental Change Repurchase Notice in accordance with Section 3.04 hereof.

(b)                
Timing of Payment. Upon the Company’s receipt of (i) a valid Fundamental Change
Repurchase Notice (together with all necessary endorsements); and (ii) this Note to which such Fundamental Change Repurchase Notice
pertains, the Holder will be entitled, except to the extent the Holder has validly withdrawn such Fundamental Change Repurchase
Notice in accordance with Section 3.04 hereof, to receive the Fundamental Change Repurchase Price with respect to this Note on
the later of the following (subject to extension to comply with applicable law): (x) the Fundamental Change Repurchase Date; and
(y) the date of delivery of this Note to the Company, duly endorsed.

(c)                
Effect of Payment. Upon receipt by the Holder of the Fundamental Change Repurchase
Price:

(A)            
this Note will cease to be outstanding and interest (except Default Interest) will cease to
accrue on this Note, except to the extent provided in the proviso to Section 3.01(b); and

(B)             
all other rights of the Holder with respect to this Note (other than the right to receive
payment of the Fundamental Change Repurchase Price upon delivery or transfer of this Note and any Defaulted Amounts or Default
Interest with respect to this Note, and other than as provided in the proviso to Section 3.01(b)) will terminate.

Section
3.06        Note
Repurchased in Part. If this Note is to be repurchased only in part, the Holder must surrender this Note to the Company, whereupon
the Company will promptly deliver to the Holder a new Note of any denomination or denominations equal to the portion of the principal
amount of this Note so surrendered which is not repurchased.

    	 	 -14-	 

     

    

Section
3.07        Covenant
to Comply With Securities Laws Upon Repurchase of Note. In connection with any repurchase offer pursuant to a Fundamental
Change Repurchase Notice under this Article 3, the Company will comply with any applicable United States federal and state securities
laws so as to permit the Holder to exercise its rights and obligations under Article 3 hereof in the time and in the manner specified
in Sections 3.01 and 3.03 hereof.

Article
4

COVENANTS

Section
4.01        Payment
of Note. The Company will pay or cause to be paid the principal of, Fundamental Change Repurchase Price for, and any accrued
and unpaid interest (including, for the avoidance of doubt, any Additional Interest or Special Interest) on, this Note on the
dates and in the manner required under this Note. To the extent lawful, the Company will also pay Default Interest on any Defaulted
Amounts in accordance with Section 2.01 hereof.

Section
4.02        144A
Information. Whenever the Company is not subject to Section 13 or Section 15(d) of the Exchange Act, if this Note or shares
of Common Stock, if any, issuable upon the conversion of this Note constitute “restricted securities” within the meaning
of Rule 144, the Company will, upon the request of the Holder or beneficial owner of this Note, or a holder or beneficial owner
of the Common Stock, if any, issuable upon the conversion of this Note, (i) promptly furnish or cause to be furnished to the applicable
Holder, beneficial owner, or any prospective purchaser designated by the applicable Holder or beneficial owner, of this Note,
or any holder, beneficial owner, or any prospective purchaser designated by the applicable holder or beneficial owner, of the
Common Stock, as applicable, all of the information that a prospective purchaser of this Note or the Common Stock, as applicable,
is required to receive under Rule 144A(d)(4) of the Securities Act for this Note or shares of Common Stock, as applicable, to
be resold to such prospective purchaser pursuant the exemption from registration provided by Rule 144A and (ii) make publicly
available such information as necessary to permit sales pursuant to Rule 144, as the case may be. 

Section
4.03       
Reports. The Company will deliver to the
Holder copies of all quarterly and annual reports that the Company is required to deliver to the SEC on Forms 10-Q and 10-K, respectively,
and any other documents, information or other reports that the Company is required to file with the SEC under Sections 13 or 15(d)
of the Exchange Act no later than the date that the Company is required to file such quarterly and annual reports, other documents,
information or other reports with the SEC (after giving effect to any grace period provided by Rule 12b-25 under the Exchange
Act). Any document filed by the Company with the SEC via the EDGAR system (or any successor thereto) will be deemed to be delivered
to the Holder at the time such document is filed via the EDGAR system (or such successor). Notwithstanding anything to the contrary
in the foregoing, nothing in this paragraph shall require the Company to deliver to any Holder any material for which the Company
has sought and received, or is seeking and has not been denied, confidential treatment by the SEC. 

Section
4.04        Additional
Interest.

(a)                
General. Additional Interest will accrue on this Note to the extent provided in the
Registration Rights Agreement, and the Company’s obligation to pay any such Additional Interest will be deemed to be obligations
under this Note with the same force and effect as if the relevant provisions of the Registration Rights Agreement were reproduced
in this Note.

    	 	 -15-	 

     

    

Section
4.05        Compliance
Certificate.

(a)                
Annual Compliance Certificate. Within 90 days after the end of each fiscal year of
the Company, beginning with the fiscal year ending on December 31, 2015, the Company will deliver to the Holder an Officers’
Certificate, which Officers’ Certificate will state (i) that the Officers signing such Officers’ Certificate have supervised
a review of the activities of the Company and the Subsidiaries with a view to determining whether the Company has kept, observed,
performed and fulfilled its obligations under this Note during the preceding fiscal year; and (ii) to the best knowledge of each
of the Officers signing such Officers’ Certificate, (A) whether the Company has kept, observed, performed and fulfilled each
and every covenant contained in this Note and is not in default in the performance or observance of any of the terms, provisions
and conditions of this Note (without regard to any period of grace or requirement of notice provided under this Note) or, if one
or more Defaults or Events of Default have occurred, what events triggered such Defaults or Events of Default and what actions
the Company is taking or proposes to take with respect to such Defaults or Events of Default; and (B) whether any event has occurred
and remains in existence by reason of which any payment of the principal of, the Fundamental Change Repurchase Price for, or interest
on, or any delivery of any of the consideration due upon conversion of, this Note is prohibited, and, if any such event has occurred
and remains in existence, a description, in reasonable detail, of such event or events and what actions the Company is taking or
proposes to take with respect to such event or events.

(b)                
Certificate of Default or Event of Default. Within five (5) Business Days after a Default
or Event of Default occurs, the Company will deliver Holder an Officers’ Certificate describing such Default or Event of
Default, its status and a description, in reasonable detail, of what action the Company is taking or proposes to take with respect
to such Default or Event of Default.

Section
4.06        Corporate
Existence. Subject to Article 5 hereof, the Company will do or cause to be done all things necessary to preserve and keep in full
force and effect:

(a)                
its corporate existence, and the corporate, partnership or other existence of each of the
Subsidiaries, in accordance with the respective organizational documents (as the same may be amended from time to time) of the
Company or any such Subsidiary; and

(b)                
the rights (charter and statutory), licenses and franchises of the Company and the Subsidiaries;

provided, however,
that the Company will not be required to preserve or keep in full force and effect any such right, license or franchise, or the
corporate, partnership or other existence of any of the Subsidiaries, if the Board of Directors determines that the preservation
thereof is no longer desirable in the conduct of the business of the Company and the Subsidiaries, taken as a whole, and that the
loss thereof is not adverse in any material respect to the Holder.

    	 	 -16-	 

     

    

Section
4.07        Par
Value Limitation.

The Company will not
take any action that, after giving effect to any adjustment pursuant to Section 8.05 or 8.07, would result in the Conversion Price
becoming less than the par value of one share of Common Stock. In addition, the Company will not engage in any transaction that
would require an adjustment to the Conversion Rate pursuant to Section 8.06 that would cause the Conversion Price to be less than
the par value of one share of Common Stock.

Section
4.08        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 Note.

Section
4.09        Further
Instruments and Acts. Upon request of the Holder, the Company will execute and deliver such further instruments and do such
further acts as may be reasonably necessary or proper to carry out more effectively the terms of this Note.

Article
5

CONSOLIDATION, MERGER AND SALE OF ASSETS

Section
5.01        Company
May Consolidate, Merge or Sell Its Assets Only on Certain Terms. The Company will not (1) consolidate with or merge with or
into; or (2) sell, lease or otherwise transfer all or substantially all of the consolidated assets of the Company and its Subsidiaries
to, another Person (any such transaction, a “Reorganization Event”), unless:

(a)                
either:

(i)                                 
the Company is the surviving corporation; or

(ii)                               
the resulting, surviving or transferee Person (if other than the Company) of such Reorganization
Event (the “Reorganization Successor Corporation”):

(I)               
is a corporation organized and validly existing under the laws of the United States of America,
any State thereof or the District of Columbia; and

(II)            
expressly assumes all of the obligations of the Company under this Note;

(b)                
immediately after giving effect to such Reorganization Event, no Default will have occurred
and be continuing; and

(c)                
prior to the effective date of such Reorganization Event, the Company delivers to the Holder
an Officers’ Certificate and an Opinion of Counsel, each stating that:

    	 	 -17-	 

     

    

(i)                                 
such Reorganization Event complies with Section 5.01(a) hereof;

(ii)                               
all conditions precedent to such Reorganization Event provided in this Note have been satisfied;
and

(iii)                              
this Note constitutes the legal, valid and binding obligation of the Reorganization Successor
Corporation (subject to customary limitations);

Section
5.02        Successor
Substituted. If any Reorganization Event occurs that complies with Sections 5.01(a)(ii) and 5.01(b) hereof, and the Company
has complied with Section 5.01(c) hereof:

(a)                
 from and after the date of such Reorganization Event, the Reorganization Successor Corporation
for such Reorganization Event will succeed to, and be substituted for, and may exercise every right and power of, and shall assume
all obligations of, the Company under this Note with the same effect as if such Reorganization Successor Corporation had been named
as the Company herein.

(b)                
except in the case of a Reorganization Event that is a conveyance, transfer or lease of all
or substantially all of the Company’s assets, the Person named as the “Company” in the first paragraph of this
Note or any successor (other than such Reorganization Successor Corporation that will thereafter have become such in the manner
prescribed in this Article 5) will be discharged from its obligations under this Note and may be dissolved, wound up and liquidated
at any time.

Article
6

DEFAULTS AND REMEDIES

Section
6.01        Events
of Default.

(a)                
General. Each of the following events will be an “Event of Default”:

(i)                                 
the Company fails to pay the principal of this Note (including any Fundamental Change Repurchase
Price) when due at maturity or upon repurchase upon a Fundamental Change or declaration of acceleration or otherwise;

(ii)              
the Company fails to pay any interest on this Note when due and such failure continues for
a period of thirty (30) days after the applicable due date;

(iii)            
the Company fails to give any Fundamental Change Notice or notice of a Make-Whole Fundamental
Change, in each case, when due;

(iv)            
the Company fails to comply with its obligation to convert this Note in accordance with Article
8 hereof upon the Holder’s exercise of its conversion rights with respect to this Note;

(v)              
the Company fails to comply with its obligations under Article 5 hereof;

    	 	 -18-	 

     

    

(vi)            
the Company fails to perform or observe any of its covenants or warranties in this Note (other
than a covenant or agreement specifically addressed in clauses (i) through (v) above) and such failure continues for a period of
sixty (60) days after days after written notice to the Company by the Holder;

(vii)          
the default by the Company or any Subsidiary with respect to any mortgage, agreement or other
instrument under which there may be outstanding, or by which there may be secured or evidenced, any indebtedness for money borrowed
by the Company and/or any Subsidiary in excess of one million dollars ($1,000,000) in the aggregate, whether such indebtedness
exists as of the Issue Date or is later created, if that default:

(A)            
results in such indebtedness becoming or being declared due and payable (prior to its express
maturity); or

(B)             
constitutes a failure to pay the principal of, or interest on, such indebtedness when due
and payable at its stated maturity, upon required repurchase, upon declaration of acceleration or otherwise, and after the expiration
of any applicable grace period,

and, such acceleration
shall not have been rescinded or annulled or such failure to pay shall not have been cured, as the case may be, within thirty (30)
days after written notice to the Company by the Holder;

(viii)        
a final judgment for the payment of in excess of one million dollars ($1,000,000) (excluding
any amounts covered by insurance) is rendered against the Company or any Subsidiary, and such judgment is not discharged or stayed
within sixty (60) days after (i) the date on which all rights to appeal such judgment have expired if no appeal has commenced;
or (ii) the date on which all rights to appeal have been extinguished;

(ix)            
the Company or any Significant Subsidiary, pursuant to or within the meaning of any Bankruptcy
Law:

(A)            
commences a voluntary case;

(B)             
consents to the entry of an order for relief against it in an involuntary case;

(C)             
consents to the appointment of a Custodian of it or for any substantial part of its property;

(D)            
makes a general assignment for the benefit of its creditors;

(E)             
takes any comparable action under any foreign laws relating to insolvency; or

(F)              
generally is not paying its debts as they become due; or

    	 	 -19-	 

     

    

(x)              
a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that:

(A)            
is for relief against Company or any Significant Subsidiary in an involuntary case or proceeding;

(B)             
appoints a Custodian of the Company or any Significant Subsidiary, or for any substantial
part of the property of the Company or any Significant Subsidiary;

(C)             
orders the winding up or liquidation of the Company or any Significant Subsidiary; or

(D)            
grants any similar relief under any foreign laws,

and, in each
such case, the order or decree remains unstayed and in effect for sixty (60) days.

(b)                
Cause Irrelevant. Each of the events enumerated in Section 6.01(a) hereof will constitute
an Event of Default whatever the cause and regardless of whether voluntary or involuntary or 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.

Section
6.02        Acceleration.

(a)                
Automatic Acceleration in Certain Circumstances. If an Event of Default specified in
Sections 6.01(a)(ix) or 6.01(a)(x) hereof occurs with respect to the Company, the principal amount of, and all accrued and unpaid
interest, if any, on this Note will immediately become due and payable without any further action or notice by any party.

(b)                
Optional Acceleration. If any Event of Default other than an Event of Default specified
in Section 6.01(a)(ix) or 6.01(a)(x) occurs and is continuing, the Holder, by delivering a written notice to the Company, may declare
the principal amount of, and all accrued and unpaid interest, if any, on this Note immediately due and payable, and upon such declaration,
the principal amount of, and all accrued and unpaid interest, if any, on this Note will immediately become due and payable.

(c)                
Rescission of Acceleration. Notwithstanding anything to the contrary in this Note,
the Holder may rescind any acceleration of this Note and its consequences hereunder by delivering written notice to the Company
if (i) such 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, interest, if any, on, or the Fundamental Change Repurchase Price
for, this Note that has become due solely as a result of acceleration) have been cured or waived. No such rescission will affect
any subsequent Default or impair any right consequent thereto.

    	 	 -20-	 

     

    

Section
6.03        Other
Remedies. If an Event of Default occurs and is continuing, the Holder may pursue any available remedy to collect the payment
of principal, accrued and unpaid interest, if any, or payment of the Fundamental Change Repurchase Price for, this Note or to
enforce the performance of any provision of this Note regarding any other matter.

A delay or omission
by the Holder in exercising any right or remedy accruing upon an Event of Default will not impair the right or remedy or constitute
a waiver of or acquiescence in the Event of Default. No remedy is exclusive of any other remedy. All available remedies are cumulative.

Section
6.04        Sole
Remedy for Failure to Report.

(a)                
General. Notwithstanding anything to the contrary in this Note, the Company may elect
that the sole remedy for any Event of Default specified in Section 6.01(a)(vi) hereof relating to the Company’s failure to
comply with Section 4.03 hereof (a “Reporting Event of Default”) will, for the period beginning on the date
on which such Reporting Event of Default first occurred and ending on the earlier of (A) the date on which such Reporting Event
of Default (i) is cured; or (ii) is validly waived in accordance with Section 6.05 hereof; and (B) the sixtieth (60th) calendar
day immediately following the date on which such Reporting Event of Default first occurred, consist exclusively of the right to
receive additional interest (the “Special Interest”) on this Note at a rate equal to 0.50% per annum on the
principal amount of this Note. Any Special Interest will be payable in the same manner and on the same dates as the stated interest
payable on this Note and will accrue in addition to any Additional Interest that the Company is obligated to pay. 

(b)                
Limitation on Remedy. If (i) a Reporting Event of Default occurs and the Company elects
that the sole remedy with respect to such Reporting Event of Default will be the Special Interest; and (ii) on the sixty first
(61st) day immediately following, and including, the date on which such Reporting Event of Default first occurred, such Reporting
Event of Default has not been cured or validly waived in accordance with Section 6.05 hereof, then this Note will become subject
to acceleration under Section 6.02(a) hereof on account of such Reporting Event of Default. For the avoidance of doubt, Special
Interest will cease to accrue from such sixty first (61st) day, without limiting the generality of this Section 6.04 as it may
apply to any subsequent Reporting Event of Default.

(c)                
Company Election Notice. To elect to pay the Special Interest as the sole remedy for
a Reporting Event of Default, the Company must deliver written notice of such election to the Holder prior to the date on which
such Reporting Event of Default first occurs. Any such notice must include a brief description of the report that the Company failed,
or will fail, to file, a statement that the Company is electing to pay the Special Interest and the date on which such Reporting
Event of Default will occur.

If a Reporting Event
of Default occurs and the Company fails to timely deliver such notice for such Reporting Event of Default or fails to pay the Special
Interest, this Note will be subject to acceleration under Section 6.02(a) hereof on account of such Reporting Event of Default.

(d)                
Other Events of Default. Notwithstanding anything to the contrary herein, if the Company
elects to pay Special Interest with respect to any Reporting Event of Default, the Company’s election will not affect the
rights of the Holder with respect to any other Event of Default, including with respect to any other Reporting Event of Default;
provided, that, for the avoidance of doubt, in no event will the Company be obligated to pay Special Interest at a rate greater
than 0.50% per annum on the principal amount of this Note.

    	 	 -21-	 

     

    

Section
6.05        Waiver
of Past Defaults. If an Event of Default or a Default that would lead to such an Event of Default occurs and is continuing,
such Event of Default or Default may be waived only with the consent of the Holder. Whenever any Event of Default is so waived,
it will cease to exist, and whenever any Default is so waived, it will be deemed cured and any Event of Default arising therefrom
will be deemed not to occur. However, no such waiver will extend to any subsequent or other Default or Event of Default or impair
any consequent right.

Article
7

SATISFACTION AND DISCHARGE

Section
7.01        Discharge
of Liability on Note. When (a) this Note becomes due and payable, and the Company delivers to the Holder, as applicable, cash
(or, solely to satisfy amounts due and owing as a result of conversions of this Note, Conversion Consideration), sufficient to
pay all amounts due and owing on this Note and (b) the Company pays all other sums payable by it under this Note, this Note will
cease to be of further effect and the Holder will acknowledge the satisfaction and discharge of this Note.

Article
8

CONVERSIONS

Section
8.01        Right
To Convert.

(a)                
In General. Subject to, and upon compliance with, the provisions of this Article 8,
at any time prior to the Close of Business on the second (2nd) Business Day immediately preceding the Maturity Date, the Holder
may, at its option, convert this Note (or any portion thereof) into Conversion Consideration, as provided in this Article 8. This
Note may not be converted after the Close of Business on the second (2nd) Business Day immediately preceding the Maturity Date.

(b)                
Closed Periods. Notwithstanding anything to the contrary in this Note, if the Holder
tenders a Repurchase Notice with respect to this Note in accordance with Article 3 hereof, this Note may not be converted except
to the extent (i) this Note is not subject to such Repurchase Notice, (ii) such Repurchase Notice is withdrawn in accordance with
Article 3 hereof or (iii) the Company fails to pay the Fundamental Change Repurchase Price for this Note in accordance with Section
3.05(b) hereof.

Section
8.02        Conversion
Procedures.

(a)                
General. To exercise its conversion right with respect to this Note, the Holder must
(i) complete and manually sign a conversion notice in the form set forth in Exhibit A hereto, or a facsimile of such conversion
notice (such notice, or such facsimile, the “Conversion Notice”); (ii) deliver such signed and completed Conversion
Notice, which shall be irrevocable, and this Note to the Company; (iii) furnish any endorsements and transfer documents that the
Company may require; and (iv) pay any amounts due pursuant to Section 8.02(d) or 8.02(e).

    	 	 -22-	 

     

    

The first Business
Day on which the Holder satisfies the foregoing requirements with respect to this Note and on which conversion of this Note is
not otherwise prohibited hereunder will be the “Conversion Date” for this Note. If the Holder has delivered
a Fundamental Change Repurchase Notice with respect to this Note, the Holder may not surrender this Note for conversion until the
Holder has withdrawn such Fundamental Change Repurchase Notice in accordance with Section 3.04.

The conversion of
this Note will be deemed to occur at the Close of Business on the Conversion Date for this Note, and this converted Note or portion
thereof will cease to be outstanding upon conversion.

(b)                
Holder of Record. If the Holder surrenders the entire principal amount of this Note
for conversion, the Holder will no longer be the Holder of this Note as of the Close of Business on the Conversion Date for this
Note.

The person in whose
name any shares of Common Stock are issuable upon conversion of this Note will become the holder of record of such shares as of
the Close of Business on the Conversion Date for such conversion.

(c)                
Conversions in Part. If the Holder surrenders only a portion of the principal amount
of this Note for conversion, promptly after the Conversion Date for such portion, the Company will deliver to the Holder a new
Note, having a principal amount equal to the aggregate principal amount of the unconverted portion of the Note surrendered for
conversion.

(d)                
Reimbursement of Interest upon Conversion. If the Holder converts this Note 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, then (x) the Holder at the Close of Business on such Regular Record Date shall be entitled, notwithstanding
such conversion, to receive, on the date the Company delivers (or is required to deliver) the Conversion Consideration due in respect
of such conversion, the unpaid interest that would have accrued on such Note to, but excluding, such Interest Payment Date (assuming,
solely for these purposes, that such Note remained outstanding through such Interest Payment Date); and (y) the Holder must, upon
surrender of this Note for conversion, accompany this Note with an amount of cash equal to the amount of such interest referred
to in clause (x) above; provided, however, that the Holder need not make such payment (A) for conversions following
the Regular Record Date immediately preceding the Maturity Date; (B) if the Company has specified a Fundamental Change Repurchase
Date that is after such Regular Record Date and on or prior to the Business Day immediately following such Interest Payment Date;
or (C) to the extent of any overdue interest, if any overdue interest exists at the time of conversion with respect to this Note.
For the avoidance of doubt, the Holder at the Close of Business on the Regular Record Date immediately preceding the Maturity Date
will be entitled to receive interest that accrues (or would have accrued) on this Note to, but excluding, the Maturity Date notwithstanding
any conversion of this Note.

    	 	 -23-	 

     

    

(e)                
Taxes and Duties. If the Holder converts this Note, 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; provided,
however, that if any tax is due because the Holder requested that shares of Common Stock be issued in a name other than
its own, the Holder will pay such tax and the Company, until having received a sum sufficient to pay such tax, may refuse to deliver
any certificates representing the shares of Common Stock being issued in a name other than that of the Holder

(f)                 
Restrictions on Conversion. Notwithstanding anything to the contrary in this Note,
this Note will not be convertible by the Holder, and the Company will not effect any conversion of this Note, in each case to the
extent (and only to the extent) that such convertibility or conversion would result in the Holder or any of its Affiliates beneficially
owning in excess of 9.99% of the then-outstanding shares of Common Stock. For these purposes, beneficial ownership and all determinations
and calculations (including with respect to calculations of percentage ownership) will be determined in accordance with Section
13(d) of the Exchange Act and the rules and regulations promulgated thereunder. For the avoidance of doubt, if the convertibility
of this Note is restricted pursuant to this Section 8.02(f), this Note will continue to be outstanding, and its convertibility
will be reinstated if and when the convertibility and conversion will not violate the limitations set forth in this Section 8.02(f).

Section
8.03        Settlement
Upon Conversion.

(a)                
Conversion Obligation.

(i)                                 
Conversion Consideration. Subject to the terms hereof, upon conversion of this Note,
the consideration (the “Conversion Consideration”) due in respect of each $1,000 principal amount of this Note
to be converted will consist of (I) a whole number of shares of Common Stock equal to the Conversion Rate in effect on the Conversion
Date for such conversion (which, if not a whole number, will be rounded down to the nearest whole number); (II) in the case of
a principal amount or portion of a principal amount that is not a multiple of $1,000, an equivalent pro rata number of shares and
(III) if such Conversion Rate is not a whole number, cash in lieu of the related fractional share in an amount equal to the product
of (x) the Last Reported Sale Price per share of Common Stock on such Conversion Date (or, if such Conversion Date is not a Trading
Day, the immediately preceding Trading Day) and (y) the fractional portion of such Conversion Rate.

(ii)                               
Delivery of Conversion Consideration. Except as set forth in Section 8.05, the Company
will pay or deliver, as the case may be, the Conversion Consideration due upon the conversion of this Note to the Holder on the
third (3rd) Business Day immediately following the Conversion Date for such conversion.

(b)                
Settlement of Accrued Interest and Deemed Payment of Principal. If the Holder converts
this Note, the Company will not adjust the Conversion Rate to account for any accrued and unpaid interest on this Note, and, except
as provided in Section 8.02(d), the Company’s delivery of the Conversion Consideration due upon such conversion will be deemed
to satisfy and discharge in full the Company’s obligation to pay the principal of this Note and accrued and unpaid interest,
if any, on, this Note to, but excluding the Conversion Date. As a result, except as provided in Section 8.02(d), any accrued and
unpaid interest with respect to this Note, in the event that it is converted, will be deemed to be paid in full rather than cancelled,
extinguished or forfeited.

    	 	 -24-	 

     

    

Section
8.04        Common
Stock Issued Upon Conversion.

(a)                
The Company will reserve out of its authorized but unissued shares of Common Stock, and keep
available to satisfy conversion of this Note, a number of shares of Common Stock sufficient to permit the conversion this Note,
after giving effect to the largest number of Additional Shares that may from time to time be added to the Conversion Rate as provided
in Section 8.07.

(b)                
Any shares of Common Stock delivered upon the conversion of this Note will be newly issued
shares or treasury shares, duly and validly issued, fully paid, nonassessable, free from preemptive rights and free of any lien
or adverse claim (except to the extent of any lien or adverse claim created by the action or inaction of the Holder or other Person
to whom such shares of Common Stock will be delivered). In addition, the Company will endeavor to comply promptly with all federal
and state securities laws regulating the offer and delivery of any shares of Common Stock issuable upon conversion of this Note.
The Company will also use its best efforts to cause any shares of Common Stock issuable upon conversion of this Note to be listed
on whatever stock exchange(s) the Common Stock is listed on the date the Holder becomes a record holder of such Common Stock.

Section
8.05        Adjustment
of Conversion Rate. The Company will adjust the Conversion Rate from time to time as described in this Section 8.05, except
that the Company will not make an adjustment to the Conversion Rate if the Holder participates (other than in a share split or
share combination), at the same time and upon the same terms as holders of the Common Stock, and solely as a result of holding
this Note, in the relevant transaction described in this Section 8.05 without having to convert its Note and as if it held a number
of shares of the Common Stock equal to the product of (i) the Conversion Rate in effect on the applicable record date, Effective
Date or expiration date; and (ii) the aggregate principal amount of this Note (expressed in thousands) on such date.

(a)                
Stock Dividends and Share Splits. If the Company exclusively issues to all or substantially
all holders of the Common Stock shares of Common Stock as a dividend or distribution on shares of the outstanding Common Stock,
or if the Company effects a share split of the Common Stock or a share combination of the Common Stock (excluding an issuance solely
pursuant to a Common Stock Change Event, as to which the provisions set forth in Section 8.08(a) hereof will apply), the Conversion
Rate will be adjusted based on the following formula:

 

where:

    	 	 -25-	 

     

    

CR0=the
Conversion Rate in effect immediately prior to the Open of Business on the Ex-Dividend 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 Open of Business on such Ex-Dividend Date or Effective Date, as applicable;

OS0=the
number of shares of Common Stock outstanding immediately prior to the Open of Business on such Ex-Dividend Date or Effective Date,
as applicable; 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.

Such adjustment shall
become effective immediately after the Open of Business on such Ex-Dividend Date or Effective Date, as applicable. If any dividend,
distribution, share split or share combination of the type described in this Section 8.05(a) is declared, but not so paid or made,
the Conversion Rate will be immediately readjusted, effective as of the date the Board of Directors determines not to pay such
dividend or distribution or to effect such share split or share combination, to the Conversion Rate that would then be in effect
if such dividend, distribution, share split or share combination had not been declared or announced.

(b)                
Rights, Options and Warrants. If the Company issues, to all or substantially all holders
of its outstanding Common Stock, rights, options or warrants entitling such holders, for a period of not more than sixty (60) calendar
days after the record date of such issuance, to subscribe for, or purchase, shares of Common Stock, at a price per share less than
the average of the Last Reported Sale Prices per share 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, then, subject to the provisions
described below with respect to rights issued pursuant to a stockholder rights plan, the Conversion Rate will be increased based
on the following formula:

where:

CR0=the
Conversion Rate in effect immediately prior to the Open of Business on the Ex-Dividend Date for such issuance;

CR1=the
Conversion Rate in effect immediately after the Open of Business on such Ex-Dividend Date;

OS0=the
number of shares of Common Stock outstanding immediately prior to the Open of Business on such Ex-Dividend Date;

    	 	 -26-	 

     

    

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 quotient of (i) the aggregate price payable to exercise such rights, options or warrants,
over (ii) the average of the Last Reported Sale Prices per share 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.

Such adjustment shall
become effective immediately after the Open of Business on such Ex-Dividend Date. To the extent that shares of Common Stock are
not delivered after the expiration of such rights, options or warrants, including because the issued rights, options or warrants
were not exercised, the Conversion Rate will 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, the Conversion Rate will be readjusted
to the Conversion Rate that would then be in effect if the Ex-Dividend Date for such issuance had not occurred.

For purposes of this
Section 8.05(b), in determining whether any rights, options or warrants entitle holders of the Common Stock to subscribe for, or
purchase, shares of Common Stock at a price per share less than the average of the Last Reported Sale Prices per share of Common
Stock for the 10 consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the date of announcement
for an issuance, and in determining the aggregate price payable to exercise such rights, options or warrants, there will be taken
into account any consideration received by the Company for such rights, options or warrants and any amount payable on exercise
thereof, the value of such consideration, if other than cash, to be determined by the Board of Directors.

(c)                
Spin-Offs and Other Distributed Property.

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

(A)            
dividends, distributions, rights, options or warrants for which an adjustment was effected
pursuant to Section 8.05(a) hereof or Section 8.05(b) hereof, as applicable;

(B)             
dividends or distributions paid exclusively in cash for which an adjustment was effected pursuant
to Section 8.05(d) hereof;

(C)             
Spin-Offs for which the provisions described in Section 8.05(c)(ii) hereof will apply; and

    	 	 -27-	 

     

    

(D)            
an issuance solely pursuant to a Common Stock Change Event, as to which the provisions set
forth in Section 8.08(a) hereof will apply,

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

where:

CR0=the
Conversion Rate in effect immediately prior to the Open of Business on the Ex-Dividend Date for such distribution;

CR1=the
Conversion Rate in effect immediately after the Open of Business on such Ex-Dividend Date;

SP0=the
average of the Last Reported Sale Prices per share 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 Company’s Board of Directors) of the shares of Capital Stock, evidences of indebtedness,
assets, property, rights, options or warrants distributed with respect to each outstanding share of Common Stock on the Ex-Dividend
Date for such distribution.

Such adjustment
shall become effective immediately after the Open of Business on such Ex-Dividend Date. Notwithstanding the foregoing, if “FMV”
(as defined above) is equal to or greater than the “SP0” (as defined above), in lieu of the foregoing increase,
the Holder will receive, for each $1,000 principal amount of this Note outstanding on the record date for the distribution, at
the same time and upon the same terms as holders of the Common Stock, the amount and kind of shares of Capital Stock, evidences
of indebtedness, assets or property, rights, options or warrants or other securities that the Holder would have received if the
Holder had owned a number of shares of Common Stock equal to the Conversion Rate in effect on the record date for such distribution
(or in the case of a principal amount or portion of a principal amount that is not a multiple of $1,000, an equivalent pro rata
amount).

If any distribution
of the type described in this Section 8.05(c)(i) is not so paid or made, or if any rights, options or warrants are not exercised
before their expiration date, the Conversion Rate will be readjusted to be the Conversion Rate that would then be in effect if
such distribution had not been declared.

    	 	 -28-	 

     

    

(ii)                               
With respect to an adjustment pursuant to this Section 8.05(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 an Affiliate, a Subsidiary 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 transaction) on a national securities exchange or
a reasonably comparable non-U.S. equivalent (a “Spin-Off”), but excluding an issuance solely pursuant to a Common
Stock Change Event as to which the provisions described in Section 8.08(a) hereof apply, the Conversion Rate will be increased
based on the following formula:

where:

CR0=the
Conversion Rate in effect immediately prior to the Open of Business on the Ex-Dividend Date for such Spin-Off;

CR1=the
Conversion Rate in effect immediately after the Open of Business on such Ex-Dividend Date;

FMV0=the
average of the Last Reported Sale Prices of the Capital Stock or similar equity interest distributed to holders of the Common Stock
applicable to one share of Common Stock (determined for purposes of the definition of Last Reported Sale Price as if such Capital
Stock or similar equity interest were the Common Stock) over the first 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 per share of the Common Stock over the Valuation Period.

Such adjustment
shall become effective immediately after the Open of Business on such Ex-Dividend Date. The adjustment to the Conversion Rate under
this Section 8.05(c)(ii) will be calculated as of the Close of Business on the last Trading Day of the Valuation Period but will
be given effect as of immediately after the Open of Business on the Ex-Dividend Date of the Spin-Off. Notwithstanding anything
to the contrary herein or in this Note, if necessary, the Company shall delay the settlement of any conversion this Note where
the Conversion Date occurs during the Valuation Period until the third (3rd) Business Day after the last day of the Valuation Period.
If any distribution of the type described in this Section 8.05(c)(ii) is declared but not so made, the Conversion Rate shall be
immediately readjusted, effective as of the date the Board of Directors determines not to make such distribution, to the Conversion
Rate that would then be in effect if such distribution had not been declared.

    	 	 -29-	 

     

    

(d)                
Cash Dividends or Distributions. If any cash dividend or distribution (other than a
distribution as to which an adjustment to the Conversion Rate was effected pursuant to Section 8.05(e) hereof) is made to all or
substantially all holders of the Common Stock, the Conversion Rate will be increased based on the following formula:

where:

CR0=the
Conversion Rate in effect immediately prior to the Open of Business on the Ex-Dividend Date for such dividend or distribution;

CR1=the
Conversion Rate in effect immediately after the Open of Business on the Ex-Dividend Date for such dividend or distribution;

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

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

Such adjustment shall
become effective immediately after the Open of Business on such Ex-Dividend Date. Notwithstanding the foregoing, if “C”
(as defined above) is equal to or greater than “SP0” (as defined above), in lieu of the foregoing increase,
the Holder will receive, for each $1,000 principal amount of this Note outstanding on the record date for such cash dividend or
distribution, at the same time and upon the same terms as holders of the Common Stock, the amount of cash that the Holder would
have received if the Holder had owned a number of shares of Common Stock equal to the Conversion Rate in effect on such record
date (or in the case of a principal amount or portion of a principal amount that is not a multiple of $1,000, an equivalent pro
rata number of shares). If any dividend or distribution of the type described in this Section 10.05(d) is declared but not so paid
or made, the Conversion Rate will be readjusted to the Conversion Rate that would then be in effect if such dividend or distribution
had not been declared.

(e)                
Tender Offers or Exchange Offers. If the Company or any Subsidiary makes 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 Common Stock exceeds the Last Reported Sale Price per share of the Common Stock on the Trading
Day next succeeding the last date (the “Expiration Date”) on which tenders or exchanges may be made pursuant
to such tender offer or exchange offer (as it may be amended), the Conversion Rate will be increased based on the following formula:

where:

    	 	 -30-	 

     

    

CR0=the
Conversion Rate in effect immediately prior to the Expiration Time (as defined below);

CR1=the
Conversion Rate in effect immediately after the Expiration Time;

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

OS0=the
number of shares of Common Stock outstanding immediately prior to the time (the “Expiration Time”) on the date
such tender or exchange offer expires (prior to giving effect to the purchase of all shares accepted for purchase or exchange in
such tender or exchange offer);

OS1=the
number of shares of Common Stock outstanding immediately after the Expiration Time (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 per share of the Common Stock over the 10 consecutive Trading Day period (the “Averaging
Period”) commencing on the Trading Day next succeeding the Expiration Date.

The adjustment to
the Conversion Rate pursuant to this Section 8.05(e) will be calculated as of the Close of Business on the last Trading Day of
the Averaging Period but will be given effect as of immediately after the Expiration Time. Notwithstanding anything to the contrary
herein, if necessary, the Company shall delay the settlement of any conversion of this Note where the Conversion Date occurs during
the Averaging Period until the third (3rd) Business Day after the last day of the Averaging Period.

(f)                 
Successive Adjustments. After an adjustment to the Conversion Rate under this Article
8, any subsequent event requiring an adjustment under this Article 8 will cause an adjustment to the Conversion Rate as so adjusted,
without duplication.

(g)                
Limitations Imposed by Stock Market Listing Standards. The Company will not enter into
any transaction, or take any other voluntary action, that would result in an adjustment to the Conversion Rate that would violate
the listing standards of any securities exchange on which any securities of the Company may be then listed, without complying,
if applicable, with the requirements of such listing standards.

(h)                
Special Settlement Provisions. Notwithstanding anything to the contrary herein, if:

(i)                                 
this Note is to be converted and, as of the Conversion Date for such conversion, any transaction
or other event that requires an adjustment to the Conversion Rate pursuant to Sections 8.05(a) through (e) has occurred but has
not yet resulted in an adjustment to the Conversion Rate;

(ii)                               
the consideration due upon such conversion consists of any shares of Common Stock; and

    	 	 -31-	 

     

    

(iii)                              
such shares of Common Stock are not entitled to participate in such transaction or event because
they were not held on the related record date or otherwise,

then, solely for purpose
of such conversion, the Company shall, without duplication, give effect to such adjustment on such Conversion Date.

In addition, notwithstanding
anything to the contrary herein, if:

(i)                  
a Conversion Rate adjustment for any transaction or other event becomes effective on any Ex-Dividend
Date pursuant to Sections 8.05(a) through (e);

(ii)                               
this Note is to be converted;

(iii)                              
the Conversion Date for such conversion occurs on or after such Ex-Dividend Date and on or
before the related record date;

(iv)                             
the consideration due upon such conversion includes any whole shares of Common Stock; and

(v)                               
the Holder would be treated, on such record date, as the record holder of such shares of Common
Stock based on a Conversion Rate that is adjusted for such event,

then such Conversion
Rate adjustment shall not be given effect for such conversion. Instead, the Holder will be treated as if the Holder were, as of
such record date, the record holder of such shares of Common Stock on an unadjusted basis and will participate in such transaction
or event.

(i)                  
Shareholder Rights Plans. If the Company has a rights plan in effect when the Holder
converts this Note, the Company will deliver to the Holder, to the extent the Holder receives any shares of Common Stock upon such
conversion of this Note, any rights that, under the rights plan, would be applicable to a share of Common Stock, unless prior to
the Conversion Date for this Note, the rights have separated from the Common Stock, in which case, and only in such case, the Conversion
Rate will be adjusted pursuant to Section 8.05(c)(i) as if, at the time of such separation, the Company had distributed to all
holders of the Common Stock 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, subject to readjustment in the event of the expiration,
termination or redemption of such rights.

(j)                 
Other Adjustments. Whenever any provision of this Note requires the calculation of
the Last Reported Sale Price or a function thereof over a period of multiple days (including the Stock Price for purposes of a
Make-Whole Fundamental Change), the Company will make appropriate adjustments to account for any adjustment to the Conversion Rate
that becomes effective, or any event requiring an adjustment to the Conversion Rate where the Ex-Dividend Date, Effective Date
or expiration date of the event occurs, at any time during such period.

(k)                
Restrictions on Adjustments. Except as a result of a reverse share split or a share
combination subject to Section 8.05(a), and except for readjustments pursuant to the last paragraph of Section 8.05(a), readjustments
pursuant to the penultimate paragraph of Section 8.05(b), readjustments pursuant to the last paragraph of Section 8.05(c)(i), readjustments
pursuant to the penultimate paragraph of Section 8.05(c)(ii) and readjustments pursuant to Section 8.05(d), in no event will the
Conversion Rate be adjusted downward pursuant to Sections 8.05(a), (b), (c), (d) or (e) hereof.

    	 	 -32-	 

     

    

In addition, notwithstanding
anything to the contrary elsewhere in this Note, the Conversion Rate will not be adjusted:

(i)                                 
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;

(ii)                               
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 or program of, or assumed by, the Company or any
of its Subsidiaries;

(iii)                              
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 and outstanding as of the date of the Issue
Date;

(iv)                             
upon the repurchase of any shares of Common Stock pursuant to an open-market share repurchase
program or other buy-back transaction that is not a tender offer or exchange offer subject to Section 10.05(e);

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

(vi)                             
for accrued and unpaid interest.

(l)                  
Miscellaneous.

(i)                                 
Certain Definitions.

(II)            
For purposes of this Section 8.05, (1) the number of shares outstanding at any time will include
shares issuable in respect of scrip certificates issued in lieu of fractions of shares of Common Stock; but, (2) 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, will
not include shares of Common Stock held in the treasury of the Company.

(III)         
For purposes of this Section 8.05, the term “Effective Date” will mean
the first date on which the Common Stock trades on the applicable exchange or in the applicable market, regular way, reflecting
the relevant share split or share combination, as applicable.

(IV)         
For purposes of this Article 8, the term “Ex-Dividend Date” will mean the
first date on which the 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.

    	 	 -33-	 

     

    

(ii)                               
Notices. Whenever the Company adjusts (or is required to adjust) the Conversion Rate
pursuant to this Section 8.05, the Company will promptly deliver to the Holder a written notice, which notice will include (i)
a brief description of the event requiring adjustment to the Conversion Rate pursuant to this Section 8.05; (ii) the effective
time of such adjustment; (iii) the Conversion Rate in effect immediately after such adjustment is made; and (iv) a schedule explaining,
in reasonable detail, how the Company calculated such adjustment.

(iii)                              
All calculations and other determinations in respect of the Conversion Rate will be made by
the Company to the nearest 1/10,000th of a share, with 5/100,000ths rounded upward.

Section
8.06        Voluntary
Adjustments.

(a)                
Best Interest Increases. The Company may, from time to time, to the extent permitted
by law and the applicable rules of any exchange on which the Common Stock is listed, increase the Conversion Rate by any amount
if (i) the Board of Directors determines that such increase is in the best interest of the Company; (ii) such increase is in effect
for a period of at least 20 Business Days; and (iii) during such period, such increase is irrevocable.

(b)                
Tax-Related Increases. To the extent permitted by law and the applicable rules of any
exchange on which the Common Stock is listed, the Company may (but is not required to) increase the Conversion Rate if the Board
of Directors determines that such increase is advisable to avoid, or diminish, any income tax imposed on holders of the Common
Stock or rights to purchase the Common Stock as a result of any dividend or distribution of shares (or rights to acquire shares)
or similar event treated as such for U.S. federal income tax purposes.

(c)                
Notices. Whenever the Board of Directors determines that the Company will increase
the Conversion Rate pursuant to this Section 8.06, the Company will deliver to the Holder notice of such increase at least fifteen
(15) Business Days before such increase will take effect, which notice will state the increase to be made and the period during
which such increase will be in effect.

Section
8.07        Adjustments
Upon Certain Fundamental Changes.

(a)                
General. If a Fundamental Change (determined after giving effect to the penultimate
paragraph of the definition thereof, but without regard to the exclusion in clause (b)(ii) of the definition thereof) occurs (a
“Make-Whole Fundamental Change”), and the Holder converts this Note “in connection with” such Make-Whole
Fundamental Change, the Company will, in the circumstances described in this Section 8.07, increase the Conversion Rate for this
Note by the number of additional shares of Common Stock (the “Additional Shares”) set forth in this Section
8.07. For purposes of this Section 8.07, a conversion of this Note will be deemed to be “in connection with” a Make-Whole
Fundamental Change if the applicable Conversion Date occurs during the period from, and including, the effective date of the Make-Whole
Fundamental Change up to, and including, the Business Day immediately prior to the related Fundamental Change Repurchase Date (or,
in the case of a Make-Whole Fundamental Change that would have been a Fundamental Change but for the exclusion in clause (b)(ii)
of the definition thereof, the thirty fifth (35th) Trading Day immediately following the effective date of such Make-Whole Fundamental
Change).:

    	 	 -34-	 

     

    

As promptly as practicable,
but in no event later than the Business Day after the effective date of a Make-Whole Fundamental Change, the Company will notify
the Holder of such effective date.

(b)                
Determination of Additional Shares. The number of Additional Shares, if any, by which
the Conversion Rate will be increased if the Holder converts this Note in connection with a Make-Whole Fundamental Change will
be determined by reference to the table below, and will be based on the Make-Whole Fundamental Change Effective Date and the Stock
Price for such Make-Whole Fundamental Change. For any Make-Whole Fundamental Change, the “Make-Whole Fundamental Change
Effective Date” will mean the date on which such Make-Whole Fundamental Change occurs or becomes effective.

(c)                
Adjustment of Stock Prices and Additional Shares. The Stock Prices set forth in the
first row (i.e., the column headers) of the table below will be adjusted on each date on which the Conversion Rate must
be adjusted pursuant to Section 8.05. The adjusted Stock Prices will equal the Stock Prices in effect immediately prior to such
adjustment, multiplied by a fraction, (i) the numerator of which is the Conversion Rate in effect immediately prior to the adjustment
giving rise to the share price adjustment; and (ii) the denominator of which is the Conversion Rate in effect immediately after
the adjustment. The numbers of Additional Shares set forth in the table below will be adjusted in the same manner, at the same
time and for the same events for which the Conversion Rate is adjusted pursuant to Section 8.05 hereof.

(d)                
Additional Shares Table. The following table sets forth hypothetical Make-Whole Fundamental
Change Effective Dates, Stock Prices and the number of Additional Shares by which the Conversion Rate will be increased per $1,000
principal amount of this Note for the Holder that converts this Note in connection with a Make-Whole Fundamental Change having
such Make-Whole Fundamental Change Effective Date and Stock Price. In the case of a principal amount or portion of a principal
amount that is not a multiple of $1,000, the Conversion Rate will be increased by an equivalent pro rata number of shares.

	 	
        Stock
        Price

	
        Effective
        Date
	
        $2.37
	
        $2.90
	
        $3.50
	
        $3.88
	
        $5.00
	
        $6.00
	
        $8.00
	
        $12.00
	
        $16.00
	
        $24.00

	April 14, 2016	77.5021	51.6448	35.4286	28.5567	15.452	8.5383	1.5763	0.0000	0.0000	0.0000
	April 14, 2017	77.5021	45.4655	30.4371	24.4253	13.232	7.3117	1.2763	0.0000	0.0000	0.0000
	April 14, 2018	77.5021	38.6586	24.7543	19.7268	10.748	5.9733	0.9850	0.0000	0.0000	0.0000
	April 14, 2019	77.5021	30.7069	17.9429	14.1469	7.7980	4.8330	0.6725	0.0000	0.0000	0.0000
	April 14, 2020	77.5021	20.9414	9.69430	7.59020	4.2960	2.4700	0.3525	0.0000	0.0000	0.0000
	April 14, 2021	77.5021	0.3862	0.00000	0.00000	0.00000	0.00000	0.00000	0.0000	0.0000	0.0000

 

(e)                
Use of Additional Shares Table. If the Stock Price and/or Make-Whole Fundamental Change
Effective Date for a Make-Whole Fundamental Change are not set forth in the table above, then:

(A)            
if the Stock Price is between two Stock Prices in the table or the Make-Whole Fundamental
Change Effective Date is between two Make-Whole Fundamental Change Effective Dates in the table, the number of Additional Shares
by which the Conversion Rate will be increased for the Holder that converts this Note in connection with such Make-Whole Fundamental
Change will be determined by a straight-line interpolation between the numbers of Additional Shares set forth for the higher and
lower Stock Prices listed in the table and the earlier and later Make-Whole Fundamental Change Effective Dates listed in the table,
as applicable, based on a 365- or 366-day year, as applicable;

    	 	 -35-	 

     

    

(B)             
if the Stock Price is greater than $24.00, subject to adjustment in the same manner as the
Stock Prices set forth in the column headings of the table, no Additional Shares will be added to the Conversion Rate; and

(C)             
if the Stock Price is less than $2.37 per share, subject to adjustment in the same manner
as the Stock Prices set forth in the column headings of the table, no Additional Shares will be added to the Conversion Rate.

Notwithstanding the
foregoing, in no event will the Conversion Rate be increased as a result of this Section 8.07 to exceed 422.3297 shares of Common
Stock per $1,000 principal amount of this Note, subject to adjustment in the same manner, at the same time and for the same events
for which the Conversion Rate must be adjusted as set forth in Section 8.05 hereof.

(f)                 
Settlement or Conversion. If the Holder converts this Note in connection with a Make-Whole
Fundamental Change, the Company will settle such conversion by delivering Conversion Consideration in accordance with Section 8.03
hereof; provided, however, that notwithstanding anything to the contrary in Section 8.03 hereof, if the Holder converts
this Note in connection with a Make-Whole Fundamental Change described in clause (b)(ii) of the definition of Fundamental Change
in which the holders of the Common Stock receive only cash in consideration for their shares of Common Stock, the Company will
settle such conversion by delivering to the Holder, on the third (3rd) Business Day immediately following the Conversion Date for
this Note, an amount of cash, for each $1,000 principal amount of this Note so converted, equal to the product of (i) the Conversion
Rate on the Conversion Date applicable to this Note (including any Additional Shares added to such Conversion Rate pursuant to
this Section 8.07) and (ii) the Stock Price for such Make-Whole Fundamental Change, or in the case of a principal amount or portion
of a principal amount that is not a multiple of $1,000, an equivalent pro rata amount.

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

(a)                
General. If any of the following events occur:

		(1)	any recapitalization, reclassification or change of Common Stock (other than (x) a change only
in par value, from par value to no par value or no par value to par value; or (y) changes resulting from a stock split or combination
not involving the issuance of any other class or series of securities);

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

    	 	 -36-	 

     

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

		(4)	any statutory share exchange,

and, in each case,
as a result of which the Common Stock would be converted into, or exchanged for, or represent solely the right to receive, stock
(including one or more series of the Common Stock), other securities, other property or assets (including cash or any combination
thereof) (any such event, a “Common Stock Change Event” and such stock, other securities, other property or
assets, the “Reference Property,” and the amount and kind of Reference Property that a holder of one share of
Common Stock would be entitled to receive on account of such Common Stock Change Event, a “Reference Property Unit”),
then, notwithstanding anything to the contrary, at the effective time of such transaction, the consideration due upon a conversion
of this Note will be determined in the same manner as if each reference to any number of shares of Common Stock in this Article
8 were instead a reference to the same number of Reference Property Units. For these purposes, the Last Reported Sale Price of
any Reference Property Unit or portion thereof that does not consist of a class of securities will be the fair value of such Reference
Property Unit or portion thereof, as applicable, determined in good faith by the Company (or, in the case of cash denominated in
U.S. dollars, the face amount thereof).

If the Reference Property
consists of more than a single type of consideration (determined based in part upon any form of stockholder election), then the
composition of the Reference Property Unit shall be deemed to be (a) the weighted average, per share of Common Stock, of the types
and amounts of consideration received by the holders of Common Stock that affirmatively make such an election; or (b) if no holders
of the Common Stock affirmatively make such an election, the types and amounts of consideration actually received, per share of
Common Stock, by the holders of the Common Stock. The Company shall notify the Holder of such weighted average (if applicable)
as soon as practicable after such determination is made.

None of the foregoing
provisions will affect the right of the Holder to convert this Note as set forth in Section 8.01 and Section 8.02 prior to the
effective date of such Common Stock Change Event.

(b)                
Notices.

(i)                                 
As soon as practicable upon learning of the anticipated or actual effective date of any Common
Stock Change Event, the Company will deliver written notice of such Common Stock Change Event to the Holder. Such Notice will include:

(A)            
a brief description of such Common Stock Change Event;

(B)             
the Conversion Rate in effect on the date the Company delivers such notice;

(C)             
the anticipated effective date for the Common Stock Change Event;

    	 	 -37-	 

     

    

(D)            
that, on and after the effective date for the Common Stock Change Event, this Note will be
convertible into Reference Property Units and cash in lieu of fractional Reference Property Units; and

(E)             
the composition of the Reference Property Unit for such Common Stock Change Event.

(c)                
Successive Common Stock Change Events. If more than one Common Stock Change Event occurs,
this Section 8.08 will apply successively to each Common Stock Change Event.

(d)                
Compliance Covenant. The Company will not become a party to any Common Stock Change
Event unless its terms are consistent with this Section 8.08.

Article
9

NO RIGHT OF REDEMPTION AT THE OPTION OF THE COMPANY

This Note will not
be redeemable prior to the Maturity Date at the Company’s election, and no sinking fund will be provided for this Note.

Article
10 

Section
10.01    Notices.
Any request, demand, authorization, notice, waiver, consent or communication will be in writing and delivered in Person or
mailed by first-class mail, postage prepaid, addressed as follows or transmitted by electronic transmission or other similar means
of unsecured electronic methods to the following:

if to the Company:

 

Xtant Medical
Holdings, Inc.

600 Cruiser Lane

Belgrade, MT 59714

Facsimile: (406) 388-9724

Attn: General Counsel

 

If to the Holder:

 

ROS Acquisition
Offshore LP/OrbiMed Royalty Opportunities II, LP

c/o OrbiMed Advisors
LLC

601 Lexington
Avenue, 54th Floor

New York, NY
10022

Attention: Tadd Wessel
and Christopher LiPuma

 

The Company or the
Holder, by notice given to the other in the manner provided above, may designate additional or different addresses for subsequent
notices or communications. Any notice, direction, request or demand hereunder to or upon the Holder shall be deemed to have been
sufficiently given or made, for all purposes, if it is in writing and actually received by the Holder, addressed as provided above
or sent electronically in PDF format.

    	 	 -38-	 

     

    

Section
10.02    Separability
Clause. In case any provision in this Note will be invalid, illegal or unenforceable, the validity, legality and enforceability
of the remaining provisions will not in any way be affected or impaired thereby.

Section
10.03    Governing
Law and Waiver of Jury Trial. THIS NOTE WILL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW
YORK. THE COMPANY HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY
JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS NOTE OR THE TRANSACTIONS CONTEMPLATED HEREBY.

Section
10.04    No
Recourse Against Others. A director, officer, employee or stockholder, as such, of the Company will not have any liability
for any obligations of the Company under this Note for for any claim based on, in respect of or by reason of such obligations
or their creation. By accepting this Note, the Holder will waive and release all such liability. The waiver and release will be
part of the consideration for the issuance of this Note.

Section
10.05    Calculations.
Except as otherwise provided in this Note, the Company will be responsible for making
all calculations called for under this Note. These calculations include, but are not limited to, determinations of the Last Reported
Sale Price of the Common Stock or any other security, accrued interest (including, for the avoidance of doubt, any Additional
Interest, Default Interest or Special Interest) payable on this Note and the Conversion Rate in effect on any Conversion Date.

The Company will make
all calculations in good faith and, absent manifest error, its calculations will be final and binding on the Holder. The Company
will provide a schedule of its calculations to the Holder, and the Holder is entitled to rely conclusively upon the accuracy of
the Company’s calculations without independent verification.

All calculations will
be made to the nearest cent or to the nearest 1/10,000th of a share, as the case may be, with 5/100,000ths rounded upward.

Section
10.06    Successors.
All agreements of the Company in this Note will bind its successors.

Section
10.07    Table
of Contents; Headings. The table of contents and headings of the articles and sections of this Note have been inserted for
convenience of reference only, are not intended to be considered a part hereof, and will not modify or restrict any of the terms
or provisions hereof.

Section
10.08    Submission
to Jurisdiction. The Company: (a) agrees that any suit, action or proceeding against it arising out of or relating to this
Note as the case may be, may be instituted in any U.S. federal court with applicable subject matter jurisdiction sitting in The
City of New York; (b) waives, to the fullest extent permitted by applicable law, any objection which it may now or hereafter have
to the laying of venue of any such suit, action or proceeding, and any claim that any suit, action or proceeding in such a court
has been brought in an inconvenient forum; and (c) submits to the nonexclusive jurisdiction of such courts in any suit, action
or proceeding.

    	 	 -39-	 

     

    

Section
10.09    Legal
Holidays. If the Maturity Date or any Interest Payment Date or Fundamental Change Repurchase Date is not a Business Day (which,
solely for the purposes of any payment required to be made on this Note on any such date will be deemed not to include any day
on which the office where the place of payment is authorized or required by law to close), 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, and no interest on such payment
will accrue as a result of such delay.

Section
10.10    No
Security Interest Created. Nothing in this Note, expressed or implied, will 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
10.11    Benefits
of Note. Nothing in this Note, expressed or implied, will give to any Person, other than the parties hereto,
and their successors hereunder, any benefit or any legal or equitable right, remedy or claim under this Note.

Section
10.12    Withholding
Taxes. The Holder agrees, and each beneficial owner of an interest in this Note, by its acquisition of such interest, is deemed
to agree, that if the Company or other applicable withholding agent pays withholding taxes or backup withholding on behalf of
the Holder or beneficial owner, as applicable, as a result of an adjustment to the Conversion Rate, then the Company or other
applicable withholding agent, as applicable, may, at its option, set off such payments against payments of cash and shares of
Common Stock on this Note.

Section
10.13    Amendment
and Waiver. Any term of this Note may be amended only with the written consent of the Company
and Holder. Any amendment or waiver effected in accordance with this Section 10.13 shall be binding upon the Company, the Holder
and each transferee of this Note.

 

[Remainder of Page
Intentionally Left Blank; Signature Page Follows]

    	 	 -40-	 

     

    

IN WITNESS WHEREOF,
the undersigned have executed this Note as of the day and year first written above.

	 	Xtant Medical Holdings, Inc.	 
	 	 	 	 
	 	By:  	/s/ Daniel Goldberger	 
	 	 	Name: Daniel Goldberger	 
	 	 	Title: Chief Executive Officer	 

 

[Signature Page to Note]

 

     

     

    

EXHIBIT A

CONVERSION NOTICE

XTANT MEDICAL HOLDINGS, INC.

6.00% CONVERTIBLE SENIOR NOTE
DUE 2021

 

To convert this Note, check
the box o

 

To convert the entire principal
amount of this Note, check the box o

 

To convert only a portion
of the principal amount of this Note, check the box o and here specify the principal
amount to be converted:

 

	$	 	 	 

 

 

OrbiMed
Royalty Opportunities II, LP

  

 

	By:	 	 	 

 

Authorized Signatory

 

    	 	 D-1	 

     

    

FUNDAMENTAL CHANGE REPURCHASE
NOTICE

 

 

 

 

Xtant Medical Holdings, Inc.

600 Cruiser Lane

Belgrade, MT 59714

Attention: General
Counsel

 

The undersigned registered
owner of this Note hereby acknowledges receipt of a notice from Xtant Medical Holdings, Inc. (the “Company”)
as to the occurrence of a Fundamental Change with respect to the Company and specifying the Fundamental Change Repurchase Date
and requests and instructs the Company to pay to the Holder hereof in accordance with the applicable provisions of this Note (1)
the entire principal amount of this Note, or the portion thereof below designated; and (2) if such Fundamental Change Repurchase
Date does not occur during the period after a Regular Record Date and on or prior to the corresponding Interest Payment Date, accrued
and unpaid interest, if any, thereon to, but excluding, such Fundamental Change Repurchase Date.

 

Principal amount to be repaid
(if less than all): $_______,000

 

 

OrbiMed Royalty Opportunities II, LP

 

 

By: ____________________________________________

Authorized Signatory

 

 

    	 	 D-2EXECUTION VERSION

 

REGISTRATION RIGHTS AGREEMENT

 

OrbiMed Royalty
Opportunities II, LP

c/o OrbiMed
Advisors LLC

601 Lexington
Ave., 54th Floor

New York,
NY 10022

 

ROS Acquisition
Offshore LP

c/o OrbiMed
Advisors LLC

601 Lexington
Ave., 54th Floor

New York,
NY 10022

 

Ladies and Gentlemen:

Xtant Medical Holdings, Inc., a Delaware corporation
(the “Company”), proposes to issue and sell to OrbiMed Royalty Opportunities II, LP and ROS Acquisition Offshore
LP (the “Purchasers”) convertible senior notes due 2021 (the “Notes”), upon the terms set
forth in the Securities Purchase Agreement among the Company, OrbiMed Royalty Opportunities II, LP and ROS Acquisition Offshore
LP, dated April 14, 2016 (the “Purchase Agreement”). Upon a conversion of each Note at the option of the holder
thereof, the Company will be required to deliver shares of common stock of the Company, $0.000001 par value per share (the “Common
Stock”). To induce the Purchasers to enter into the Purchase Agreement and to satisfy the Company’s obligations
thereunder, the holders of the Notes will have the benefit of this registration rights agreement (this “Agreement”)
pursuant to which the Company agrees with the Purchasers for the benefit of the Purchasers and for the benefit of the holders (the
“Holders”) from time to time of the Registrable Securities (as defined below), as follows:

 

1.                 
Definitions. As used in this Agreement, the following capitalized defined terms shall have the following meanings:

“Additional
Interest” has the meaning set forth in Section 7 hereof.

“Affiliate”
has the meaning set forth in Rule 405 under the Securities Act.

“Broker-Dealer”
means any broker or dealer registered as such under the Exchange Act.

“Business
Day” has the meaning set forth in the Notes.

“Close
of Business” has the meaning set forth in the Notes.

“Closing
Date” means the date hereof.

“Company”
has the meaning set forth in the preamble hereto.

    	 	- 1 -	 

     

    

“Commission”
means the Securities and Exchange Commission.

“Common
Stock” has the meaning set forth in the preamble hereto.

“Control”
has the meaning set forth in Rule 405 under the Securities Act, and the terms “controlling” and “controlled”
shall have meanings correlative thereto.

“Conversion
Date” has the meaning set forth in the Notes.

“Deferral
Period” has the meaning indicated in Section 3(i) hereof.

“Exchange
Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission promulgated
thereunder.

“FINRA
Rules” means the Conduct Rules and the By-Laws of the Financial Industry Regulatory Authority, Inc.

“Holder”
has the meaning set forth in the preamble hereto.

“Losses”
has the meaning set forth in Section 5(d) hereof.

“Majority
Holders” means, on any date, Holders of Registrable Securities that represent a majority of the shares of Common Stock
that underlie (or were issued upon conversion of) the Notes and whose offer and sale is registered under the Shelf Registration
Statement.

“Managing
Underwriters” means the investment bank(s) and manager(s) that administer an underwritten offering, if any, conducted
pursuant to Section 6 hereof.

“Maturity
Date” has the meaning set forth in the Notes.

“Notes”
has the meaning set forth in the preamble hereto.

“Notice
and Questionnaire” means a written notice delivered to the Company substantially in the form attached as Annex A hereto.

“Notice
Holder” means, on any date, any Holder that has delivered a completed Notice and Questionnaire to the Company on or before
such date.

“Prospectus”
means a prospectus included in the Shelf Registration Statement (including, without limitation, a prospectus that discloses information
previously omitted from a prospectus filed as part of an effective registration statement in reliance upon Rule 430A or Rule 430B
under the Securities Act), as amended or supplemented by any prospectus supplement, with respect to the terms of the offering of
any portion of the Notes and the shares of Common Stock covered by the Shelf Registration Statement, and all amendments and supplements
thereto, including any and all exhibits thereto and any information incorporated by reference therein.

“Purchase
Agreement” has the meaning set forth in the preamble hereto.

“Purchasers”
has the meaning set forth in the preamble hereto.

    	 	- 2 -	 

     

    

“Registrable
Securities” means the Notes initially sold to the Purchasers pursuant to the Purchase Agreements and the shares of Common
Stock issuable upon conversion of such Notes, and any securities into or for which such Notes or shares have been converted or
exchanged, and any security issued with respect thereto upon any stock dividend, split or similar event; provided, however,
that each such security will cease to constitute Registrable Securities upon the earliest to occur of (i) such security being sold
pursuant to a registration statement that is effective under the Securities Act; and (ii) such security ceasing to be outstanding.

“Registration
Default” has the meaning set forth in Section 7 hereof.

“Securities
Act” means the Securities Act of 1933, as amended, and the rules and regulations of the Commission promulgated thereunder.

“Shelf
Registration Period” has the meaning set forth in Section 2(b) hereof.

“Shelf
Registration Statement” means a “shelf” registration statement of the Company prepared pursuant to Section
2 hereof that covers the resale, from time to time pursuant to Rule 415 under the Securities Act (or any successor thereto), of
some or all of the Registrable Securities on an appropriate form under the Securities Act, including all post-effective and other
amendments and supplements to such registration statement, the related Prospectus, all exhibits thereto and all material incorporated
by reference therein.

“Trading
Day” has the meaning set forth in the Notes.

“Underwriter”
means any underwriter of Registrable Securities for an offering thereof under the Shelf Registration Statement.

2.                 
Shelf Registration. (a) The Company will file with the
Commission a Shelf Registration Statement (which, initially, will be on Form S-1 and, as soon as the Company is eligible, will
be on Form S-3) providing for the registration of the offer and sale, from time to time on a continuous or delayed basis, of the
Registrable Securities by the Holders in accordance with the methods of distribution elected by such Holders, pursuant to Rule
415 under the Securities Act (or any successor thereto) and will use its best efforts to cause such Shelf Registration Statement
to become effective under the Securities Act no later than the one hundred and eightieth (180th) day after the Closing Date.

(b)              
The Company will use its best efforts to keep the Shelf Registration Statement continuously effective, supplemented and
amended as required by the Securities Act, in order to permit the related Prospectus to be usable by Holders for a period (the
“Shelf Registration Period”) from the date the Shelf Registration Statement becomes effective to, and including,
the earlier of (i) the sixtieth (60th) Trading Day immediately following the Maturity Date (subject to extension for any suspension
of the effectiveness of the Shelf Registration Statement during such sixty (60) Trading Days immediately following the Maturity
Date); and (ii) the date upon which no Registrable Securities are outstanding and constitute “restricted securities”
(as defined in Rule 144 under the Securities Act).

    	 	- 3 -	 

     

    

(c)               
The Company will cause the Shelf Registration Statement and the related Prospectus and any amendment or supplement thereto,
as of the effective date of the Shelf Registration Statement or such amendment or supplement, (i) to comply in all material respects
with the applicable requirements of the Securities Act; and (ii) not to contain any untrue statement of a material fact or omit
to state a material fact required to be stated therein or necessary in order to make the statements therein (in the case of the
Prospectus, in the light of the circumstances under which they were made) not misleading.

(d)              
Subject to applicable law, the Company will provide written notice to the Holders of the anticipated effective date of the
Shelf Registration Statement at least ten (10) Business Days before such anticipated effective date. Each Holder, in order to be
named in the Shelf Registration Statement at the time of its initial effectiveness, will be required to deliver a Notice and Questionnaire
and such other information as the Company may reasonably request in writing, if any, to the Company on or before the fifth (5th)
day before the anticipated effective date of the Shelf Registration Statement as provided in the notice. Subject to Section 3(i),
from and after the effective date of the Shelf Registration Statement, the Company will, as promptly as is practicable after the
date a Holder’s Notice and Questionnaire is delivered, but in no event after the tenth (10th) day after such date, (i) file
with the Commission an amendment to the Shelf Registration Statement or prepare and, if permitted or required by applicable law,
file a supplement to the Prospectus or an amendment or supplement to any document incorporated therein by reference or file any
other required document so that such Holder delivering such Notice and Questionnaire is named as a selling securityholder in the
Shelf Registration Statement and the related Prospectus, and so that such Holder is permitted to deliver such Prospectus to purchasers
of Registrable Securities in accordance with applicable law (except that the Company will not be required to file more than one
supplement or post-effective amendment in any thirty (30) day period in accordance with this Section 2(d)(i)) and, in the case
of a post-effective amendment to the Shelf Registration Statement, the Company will use its best efforts to cause such post-effective
amendment to become effective under the Securities Act as promptly as is practicable; (ii) provide such Holder, upon request, copies
of any documents filed pursuant to Section 2(d)(i) hereof; and (iii) notify such Holder as promptly as practicable after the effectiveness
under the Securities Act of any post-effective amendment filed pursuant to Section 2(d)(i) hereof; provided, however,
that if such Notice and Questionnaire is delivered during a Deferral Period, then the Company will so inform the Holder delivering
such Notice and Questionnaire and will take the actions set forth in clauses (i), (ii) and (iii) above upon expiration of the Deferral
Period in accordance with Section 3(i) hereof. Notwithstanding anything to the contrary herein, the Company need not name any Holder
that is not a Notice Holder as a selling securityholder in the Shelf Registration Statement or Prospectus; provided, however,
that any Holder that becomes a Notice Holder pursuant to this Section 2(d) (whether or not such Holder was a Notice Holder at the
effective date of the Shelf Registration Statement) will be named as a selling securityholder in the Shelf Registration Statement
or Prospectus in accordance with this Section 2(d).

3.                 
Registration Procedures. The following provisions will apply in connection with the Shelf Registration Statement.

(a)               
The Company will:

(i)                
furnish to the Purchasers and to counsel for the Notice Holders, not less than five (5) Business Days before the filing
thereof with the Commission, a copy of the Shelf Registration Statement and each amendment thereto and each amendment or supplement,
if any, to the Prospectus (other than amendments and supplements that do nothing more than name Notice Holders and provide information
with respect thereto and other than filings by the Company under the Exchange Act) and will use its best efforts to reflect in
each such document, when so filed with the Commission, such comments as the Purchasers reasonably propose within three (3) Business
Days of the delivery of such copies to the Purchasers; and

    	 	- 4 -	 

     

    

(ii)              
include information regarding the Notice Holders and the methods of distribution they have elected for their Registrable
Securities provided to the Company in Notices and Questionnaires as necessary to permit such distribution by the methods specified
therein.

(b)              
The Company will ensure that:

(i)                
the Shelf Registration Statement and any amendment thereto, and any Prospectus and any amendment or supplement thereto,
comply in all material respects with the Securities Act; and

(ii)              
the Shelf Registration Statement and any amendment thereto do not, when each becomes effective, contain an untrue statement
of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not
misleading.

(c)               
The Company will advise the Purchasers, the Notice Holders and any Underwriter that has provided in writing to the Company
a telephone or email or other address for notices, and confirm such advice in writing, if requested (which notice pursuant to clauses
(ii) to (v), inclusive, below will be accompanied by an instruction to suspend the use of the Prospectus until the Company has
remedied the basis for such suspension):

(i)                
when the Shelf Registration Statement and any amendment thereto have been filed with the Commission and when the Shelf Registration
Statement or any post-effective amendment thereto has become effective;

(ii)              
of any request by the Commission for any amendment or supplement to the Shelf Registration Statement or the Prospectus or
for additional information;

(iii)            
of the issuance by the Commission of any stop order suspending the effectiveness of the Shelf Registration Statement or
the institution or threatening of any proceeding for that purpose;

(iv)            
of the receipt by the Company of any notification with respect to the suspension of the qualification of the Common Stock
included therein for sale in any jurisdiction or the institution or threatening of any proceeding for such purpose; and

(v)              
of the happening of any event that requires any change in the Shelf Registration Statement or the Prospectus so that they
do not contain any untrue statement of a material fact and do not omit to state a material fact required to be stated therein or
necessary to make the statements therein (in the case of the Prospectus, in the light of the circumstances under which they were
made) not misleading.

    	 	- 5 -	 

     

    

(d)              
The Company will use its best efforts to prevent the issuance of any order suspending the effectiveness of the Shelf Registration
Statement or the qualification of the securities therein for sale in any jurisdiction and, if issued, to obtain as soon as practicable
the withdrawal thereof.

(e)               
Upon request, the Company will furnish, in electronic or physical form, to each Notice Holder, without charge, one copy
of the Shelf Registration Statement and any post-effective amendment thereto, including all material incorporated therein by reference,
and, if a Notice Holder so requests in writing, all exhibits thereto (including exhibits incorporated by reference therein).

(f)               
During the Shelf Registration Period, the Company will promptly deliver to each Purchaser, each Notice Holder, and any sales
or placement agents or underwriters acting on their behalf, without charge, as many copies of the Prospectus (including the preliminary
Prospectus, if any) relating to the Shelf Registration Statement and any amendment or supplement thereto as such person may reasonably
request. Subject to the restrictions set forth in this Agreement, the Company consents to the use of the Prospectus or any amendment
or supplement thereto by each of the foregoing in connection with the offering and sale of the Registrable Securities.

(g)              
Before any offering of Registrable Securities pursuant to the Shelf Registration Statement, the Company will arrange for
the qualification of the Registrable Securities for sale under the laws of such U.S. jurisdictions as any Notice reasonably requests
and will maintain such qualification in effect so long as required; provided, however, that in no event will the
Company be obligated by this Agreement to qualify to do business or as a dealer of securities in any jurisdiction where it is not
then so qualified or to take any action that would subject it to taxation or service of process in suits in any jurisdiction where
it is not then so subject. If, at any time during the Shelf Registration Period, the Registrable Securities are not “covered
securities” within the meaning of Section 18 of the Securities Act, then the Company will arrange for such qualification
(subject to the proviso of the immediately preceding paragraph) in each U.S. jurisdiction of residence of each Notice Holder.

(h)              
Upon the occurrence of any event contemplated by subsections (c)(ii) to (v), inclusive, above, the Company will promptly
(or within the time period provided for by Section 3(i) hereof, if applicable) prepare a post-effective amendment to the Shelf
Registration Statement or an amendment or supplement to the Prospectus or file any other required document so that the Shelf Registration
Statement and the Prospectus will not include an untrue statement of a material fact or omit to state any material fact required
to be stated therein or necessary to make the statements therein (in the case of the Prospectus, in the light of the circumstances
under which they were made) not misleading.

(i)                
Upon the occurrence or existence of any pending corporate development, public filings with the Commission or any other material
event that, in the reasonable judgment of the Company, makes it appropriate to suspend the availability of the Shelf Registration
Statement and the Prospectus, the Company will give notice (without notice of the nature or details of such events) to the Notice
Holders that the availability of the Shelf Registration Statement is suspended and, upon receipt of any such notice, each Notice
Holder agrees: (i) not to sell any Registrable Securities pursuant to the Shelf Registration Statement until such Notice Holder
receives copies of the supplemented or amended Prospectus provided for in Section 3(i) hereof, or until it is advised in writing
by the Company that the Prospectus may be used; and (ii) to hold such notice in confidence. Except in the case of a suspension
of the availability of the Shelf Registration Statement and the Prospectus solely as the result of filing a post-effective amendment
or supplement to the Prospectus to add additional selling securityholders therein, the period during which the availability of
the Shelf Registration Statement and any Prospectus is suspended (the “Deferral Period”) will not exceed an
aggregate of (A) thirty (30) days (or, if the Shelf Registration Statement is on Form S-1 (or any successor thereto), sixty (60)
days) in any calendar quarter; or (B) sixty (60) days (or, if the shelf registration statement is on Form S-1 (or any successor
thereto), ninety (90) days) in any calendar year.

    	 	- 6 -	 

     

    

(j)                
The Company will comply with all applicable rules and regulations of the Commission and will make generally available to
its securityholders an earnings statement (which need not be audited) satisfying the provisions of Section 11(a) of the Securities
Act as soon as practicable after the effective date of the Shelf Registration Statement and in any event no later than forty five
(45) days after the end of the twelve (12) month period (or ninety (90) days, if such period is a fiscal year) beginning with the
first month of the Company’s first fiscal quarter commencing after the effective date of the Shelf Registration Statement.

(k)              
The Company may require each Holder of Registrable Securities to be sold pursuant to the Shelf Registration Statement to
furnish to the Company such information regarding the Holder and the distribution of such Registrable Securities as the Company
may from time to time reasonably require for inclusion in the Shelf Registration Statement in order to comply with the Securities
Act. The Company may exclude from the Shelf Registration Statement the Registrable Securities of any Holder that unreasonably fails
to furnish such information within a reasonable time after receiving a request from the Company for such information.

(l)                
Subject to Section 6 hereof, the Company will enter into customary agreements (including, if requested by the Majority Holders,
an underwriting agreement in customary form that, for the avoidance of doubt, will provide for customary representations and warranties,
legal opinions, comfort letters and other documents and certifications) and take all other necessary actions in order to expedite
or facilitate the registration or the disposition of the Registrable Securities, and in connection therewith, if an underwriting
agreement is entered into, cause the same to contain customary indemnification provisions and procedures.

(m)            
Subject to Section 6 hereof, for persons who are or may be “underwriters” with respect to the Registrable Securities
within the meaning of the Securities Act and who make appropriate requests for information to be used solely for the purpose of
taking reasonable steps to establish a due diligence or similar defense in connection with the proposed sale of such Registrable
Securities pursuant to the Shelf Registration, the Company will:

(i)                
make reasonably available during business hours for inspection by the Holders, any Underwriter participating in any disposition
pursuant to the Shelf Registration Statement and any attorney, accountant or other agent retained by the Holders or any such Underwriter
all relevant financial and other records and pertinent corporate documents of the Company and its subsidiaries; and

    	 	- 7 -	 

     

    

(ii)              
cause the Company’s officers, directors, employees, accountants and auditors to supply all relevant information reasonably
requested by the Holders or any such Underwriter, attorney, accountant or agent in connection with the Shelf Registration Statement
as is customary for similar due diligence examinations.

(n)              
In the event that any Broker-Dealer underwrites any Registrable Securities or participates as a member of an underwriting
syndicate or selling group or “participates in an offering” (within the meaning of the FINRA Rules) thereof, whether
as a Holder or as an underwriter, placement, sales agent or broker or dealer in respect thereof, or otherwise, the Company will,
upon the reasonable request of such Broker-Dealer, comply with any reasonable request of such Broker-Dealer in complying with the
FINRA Rules.

(o)              
The Company will use its best efforts to take all other steps necessary to effect the registration of the offer and sale
of the Registrable Securities covered by the Shelf Registration Statement.

4.                 
Registration Expenses. The Company will bear all expenses incurred in connection with the performance of its
obligations under Sections 2 and 3 hereof. The Company will reimburse the Purchasers and the Holders for the reasonable fees and
disbursements of one firm or counsel (which may be a nationally recognized law firm experienced in securities matters designated
by the Majority Holders) to act as counsel for the Holders in connection therewith.

5.                 
Indemnification and Contribution. (a) The Company agrees
to indemnify and hold harmless each Holder, the directors, officers, employees, Affiliates and agents of each Holder and each person
who controls any Holder within the meaning of the Securities Act or the Exchange Act against any and all losses, claims, damages
or liabilities, joint or several, to which they or any of them may become subject under the Securities Act, the Exchange Act or
other federal or state statutory law or regulation, at common law or otherwise, insofar as such losses, claims, damages or liabilities
(or actions in respect thereof) arise out of or are based upon any untrue statement or alleged untrue statement of a material fact
contained in the Shelf Registration Statement as originally filed or in any amendment thereof, or in any preliminary Prospectus
or the Prospectus, or in any amendment thereof or supplement thereto, or caused by the omission or alleged omission to state therein
a material fact required to be stated therein or necessary to make the statements therein (in the case of any preliminary Prospectus
or the Prospectus, in the light of the circumstances under which they were made) not misleading, and agrees to reimburse each such
indemnified party, as incurred, for any legal or other expenses reasonably incurred by it in connection with investigating or defending
any such loss, claim, damage, liability or action; provided, however, that the Company will not be liable in any
such case to the extent that any such loss, claim, damage or liability arises out of or is based upon any such untrue statement
or alleged untrue statement or omission or alleged omission made therein in reliance upon and in conformity with written information
furnished to the Company by or on behalf of the party claiming indemnification specifically for inclusion therein.

    	 	- 8 -	 

     

    

The Company also
agrees to provide customary indemnities to, and to contribute as provided in Section 5(d) hereof to Losses of, any underwriters
of the Registrable Securities, their officers, directors and employees and each Person who controls such underwriters (within the
meaning of the Securities Act or the Exchange Act) to the same extent as provided herein with respect to the Holders.

(b)              
Each Holder of securities covered by the Shelf Registration Statement (including each Purchaser that is a Holder, in such
capacity) severally and not jointly agrees to indemnify and hold harmless the Company, each of the Company’s directors, each
of the Company’s officers who sign the Shelf Registration Statement and each person who controls the Company within the meaning
of the Securities Act or the Exchange Act, to the same extent as the foregoing indemnity from the Company to each such Holder,
but only with reference to written information relating to such Holder furnished to the Company by or on behalf of such Holder
specifically for inclusion in the documents referred to in the foregoing indemnity. This indemnity agreement will be acknowledged
by each Notice Holder that is not a Purchaser in such Notice Holder’s Notice and Questionnaire and will be in addition to
any liability that any such Notice Holder may otherwise have.

(c)               
Promptly after receipt by an indemnified party under this Section 5 or notice of the commencement of any action, such indemnified
party will, if a claim in respect thereof is to be made against the indemnifying party under this Section 5, notify the indemnifying
party in writing of the commencement thereof, but the failure so to notify the indemnifying party (i) will not relieve it from
liability under paragraph (a) or (b), as applicable, above unless and to the extent it has been materially prejudiced through the
forfeiture by the indemnifying party of substantial rights and defenses; and (ii) will not, in any event, relieve the indemnifying
party from any obligations to any indemnified party other than the indemnification obligation provided in paragraph (a) or (b),
as applicable, above. If any action is brought against an indemnified party and it has notified the indemnifying party thereof,
the indemnifying party will be entitled to appoint counsel (including local counsel) of the indemnifying party’s choice at
the indemnifying party’s expense to represent the indemnified party in any action for which indemnification is sought (in
which case, the indemnifying party will not thereafter be responsible for the fees and expenses of any separate counsel, other
than local counsel if not appointed by the indemnifying party, retained by the indemnified party or parties, except as set forth
below); provided, however, that such counsel will be reasonably satisfactory to the indemnified party. Notwithstanding
the indemnifying party’s election to appoint counsel (including local counsel) to represent the indemnified party in an action,
the indemnified party will have the right to employ separate counsel (including local counsel), and the indemnifying party will
bear the reasonable fees, costs and expenses of such separate counsel if (i) the use of counsel chosen by the indemnifying party
to represent the indemnified party would present such counsel with a conflict of interest; (ii) the actual or potential defendants
in, or targets of, any such action include both the indemnified party and the indemnifying party and the indemnified party has
reasonably concluded that there may be legal defenses available to it and/or other indemnified parties that are different from
or additional to those available to the indemnifying party; (iii) the indemnifying party has not employed counsel reasonably satisfactory
to the indemnified party to represent the indemnified party within a reasonable time after notice of the institution of such action;
or (iv) the indemnifying party has authorized the indemnified party to employ separate counsel at the expense of the indemnifying
party. The indemnifying party will not, in connection with any proceeding or related proceeding in the same jurisdiction, be liable
for the fees and expenses of more than one (1) separate law firm (in addition to any local counsel) for all indemnified persons.
An indemnifying party will not, without the prior written consent of the indemnified parties, settle or compromise or consent to
the entry of any judgment with respect to any pending or threatened claim, action, suit or proceeding in respect of which indemnification
or contribution may be sought hereunder (whether or not the indemnified parties are actual or potential parties to such claim or
action) unless such settlement, compromise or consent includes an unconditional release of each indemnified party from all liability
arising out of such claim, action, suit or proceeding and does not include an admission of fault, culpability or a failure to act,
by or on behalf of any such indemnified party.

    	 	- 9 -	 

     

    

(d)              
In the event that the indemnity provided in paragraph (a) or (b) of this Section 5 is unavailable to or insufficient to
hold harmless an indemnified party for any reason, then each applicable indemnifying party will have a several, and not joint,
obligation to contribute to the aggregate losses, claims, damages and liabilities (including legal or other expenses reasonably
incurred in connection with investigating or defending such losses, claims, damages, liabilities or actions) (collectively “Losses”)
to which such indemnified party may be subject in such proportion as is appropriate to reflect the relative benefits received by
such indemnifying party, on the one hand, and such indemnified party, on the other hand, from the offering of the Registrable Securities
and the Shelf Registration Statement that resulted in such Losses; provided, however, that in no case will any underwriter
be responsible for any amount in excess of the underwriting discount or commission applicable to the securities purchased by such
underwriter under the Shelf Registration Statement that resulted in such Losses. If the allocation provided by the immediately
preceding sentence is unavailable for any reason, then the indemnifying party and the indemnified party will contribute in such
proportion as is appropriate to reflect not only such relative benefits but also the relative fault of such indemnifying party,
on the one hand, and such indemnified party, on the other hand, in connection with the statements or omissions, or alleged statements
or omissions, that resulted in such Losses as well as any other relevant equitable considerations. Benefits received by the Company
will be deemed to be equal to the total net proceeds from the offering of the Notes (before deducting expenses). Benefits received
by any Holder will be deemed to be equal to the value of having the offer and sale of such Holder’s Registrable Securities
registered under the Securities Act pursuant to the Shelf Registration Statement and hereunder. Benefits received by any underwriter
will be deemed to be equal to the total underwriting discounts and commissions, as set forth on the cover page of the Prospectus
relating to the Shelf Registration Statement that resulted in such Losses. Relative fault will be determined by reference to, among
other things, whether any untrue or any alleged untrue statement of a material fact or omission or alleged omission to state a
material fact relates to information provided by the indemnifying party, on the one hand, or by the indemnified party, on the other
hand, the intent of the parties and their relative knowledge, access to information and opportunity to correct or prevent such
untrue statement or omission or alleged untrue statement or omission. The parties agree that it would not be just and equitable
if contribution were determined by pro rata allocation (even if the Holders were treated as one entity for such purpose) or any
other method of allocation which does not take account of the equitable considerations referred to above. Notwithstanding anything
to the contrary in this Section 5(d), no person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of
the Securities Act) will be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. For
purposes of this Section 5, each person who controls a Holder within the meaning of the Securities Act or the Exchange Act and
each director, officer, employee, Affiliate and agent of such Holder will have the same rights to contribution as such Holder,
and each person who controls the Company within the meaning of the Securities Act or the Exchange Act, each officer of the Company
who signed the Shelf Registration Statement and each director of the Company will have the same rights to contribution as the Company,
subject in each case to the applicable terms and conditions of this Section 5(d).

    	 	- 10 -	 

     

    

(e)               
The provisions of this Section 5 will remain in full force and effect, regardless of any investigation made by or on behalf
of any Purchaser or Holder or the Company or any of the indemnified persons referred to in this Section 5, and will survive the
sale by a Holder of securities covered by the Shelf Registration Statement.

6.                 
Underwritten Registrations. (a) Notwithstanding anything
to the contrary herein, in no event will the method of distribution of Registrable Securities take the form of an underwritten
offering without the prior written consent of the Company. Consent may be conditioned on waivers of any of the obligations in Section
3, 4 or 5 hereof.

(b)              
If any Registrable Securities are to be sold in an underwritten offering, the Managing Underwriters will be selected by
the Company, subject to the prior written consent of the Majority Holders, which consent will not be unreasonably withheld.

(c)               
No person may participate in any underwritten offering pursuant to the Shelf Registration Statement unless such person:
(i) agrees to sell such person’s Registrable Securities on the basis reasonably provided in any underwriting arrangements
approved by the persons entitled hereunder to approve such arrangements; and (ii) completes and executes all questionnaires, powers
of attorney, indemnities, underwriting agreements and other documents reasonably required under the terms of such underwriting
arrangements.

7.                 
Registration Defaults. If any of the following events shall occur (each, a “Registration Default”),
then the Company will pay additional interest on the Notes (“Additional Interest”) as follows:

(a)               
if the Shelf Registration Statement has not been filed with the Commission and has not become effective on or before the
one hundred and eightieth (180th) day after the Closing Date, then, commencing on the one hundred and eighty first (181st) day
after the Closing Date, Additional Interest will accrue on the aggregate outstanding principal amount of the Notes at a rate of
0.25% per annum for the first 90 days beginning on, and including, such one hundred and eighty first (181st) day and 0.50% per
annum thereafter;

(b)              
if the Shelf Registration Statement has become effective but ceases to be effective or usable for the offer and sale of
the Registrable Securities (other than in connection with (i) a Deferral Period; or (ii) as a result filing a post-effective amendment
solely to add additional selling securityholders) at any time during the Shelf Registration Period and the Company does not cure
the lapse of effectiveness or usability within ten (10) Business Days (or, if a Deferral Period is then in effect, within ten (10)
Business Days after the expiration of such Deferral Period) (or, in the case of filing a post-effective amendment solely to add
additional selling securityholders, within ten (10) Business Days after the expiration of the ten (10) day period referred to in
Section 2(d), subject to the proviso therein), then Additional Interest will accrue on the aggregate outstanding principal amount
of the Notes at a rate of 0.25% per annum for the first ninety (90) days beginning on, and including, the day following such tenth
(10th) Business Day and 0.50% per annum thereafter;

    	 	- 11 -	 

     

    

(c)               
if the Company, through its omission, fails to name as a selling securityholder any Holder that had complied timely with
its obligations hereunder in a manner to entitle such Holder to be so named in (i) the Shelf Registration Statement at the time
it first became effective; or (ii) any Prospectus at the time it is filed with the Commission (or, if later, the effective date
of the Shelf Registration Statement), then Additional Interest will accrue on the aggregate outstanding principal amount of the
Notes held by such Holder at a rate of 0.25% per annum for the first ninety (90) days beginning on, and including, the day following
the effective date of such Shelf Registration Statement or the filing of such Prospectus, as applicable, and 0.50% per annum thereafter;
and

(d)              
if the aggregate duration of Deferral Periods in any period exceeds the number of days permitted in respect of such period
pursuant to Section 3(i) hereof, then, commencing on the day the aggregate duration of Deferral Periods in such period exceeds
the number of days permitted in respect of such period, Additional Interest will accrue on the aggregate outstanding principal
amount of the Notes at a rate of 0.25% per annum for the first ninety (90) days beginning on, and including, and including such
date, and 0.50% per annum thereafter;

provided, however, that
(1) upon the filing and effectiveness of the Shelf Registration Statement (in the case of paragraph (a) above), (2) upon such time
as the applicable Shelf Registration Statement becomes effective and usable for resales (in the case of paragraph (b) above), (3)
upon such time as such Holder is permitted to sell its Registrable Securities pursuant to any Shelf Registration Statement and
Prospectus in accordance with applicable law (in the case of paragraph (c) above), (4) upon the termination of the applicable Deferral
Period (in the case of paragraph (d) above), or (5) in any case, upon the expiration of the Shelf Registration Period, Additional
Interest will cease to accrue on account of the applicable Registration Default (it being understood that nothing in this sentence
will prevent Additional Interest from accruing as a result of any other Registration Default during the Shelf Registration Period).

Any Additional Interest
due pursuant to this Section 7 will be payable in cash in the same manner and on the same dates as the stated interest payable
on the Notes. If any Note ceases to be outstanding during any period for which Additional Interest is accruing, the Company will
prorate the Additional Interest payable with respect to such Note.

Additional Interest
will not accrue on the Notes at a rate that exceeds 0.50% per annum in the aggregate and will not be payable under more than one
clause above for any given period of time, except that if Additional Interest would be payable because of more than one Registration
Default, but at a rate of 0.25% per annum under one Registration Default and at a rate of 0.50% per annum under the other, then
the Additional Interest rate will be the higher rate of 0.50% per annum.

    	 	- 12 -	 

     

    

Notwithstanding
anything to the contrary in this Agreement, in no event will Additional Interest accrue on the shares of Common Stock issued upon
conversion of the Notes. However, if there exists a Registration Default with respect to the Registrable Securities on the Maturity
Date, then, in addition to any Additional Interest otherwise payable, the Company will make a cash payment to each Holder of any
outstanding Note as of the Close of Business on the Business Day immediately before the Maturity Date in an amount equal to five
percent (5%) of the principal amount of such Note. For purposes of the preceding sentence, Notes that have been converted with
a Conversion Date that is on or after January 15, 2021 and on or before the second (2nd) Business Day immediately preceding the
Maturity Date will be considered to be outstanding. Accordingly, and for the avoidance of doubt, if a Registration Default exists
on the Maturity Date, the payment described in the preceding two sentences will be payable on all Notes outstanding as of the Close
of Business on the Business Day immediately preceding the Maturity Date and on all Notes converted with a conversion date that
is on or after January 15, 2021 and on or before the second (2nd) Business Day immediately preceding the Maturity Date.

8.                 
No Inconsistent Agreements. The Company has not entered into, and agrees not to enter into, any agreement
with respect to its securities that is inconsistent with the registration rights granted to the Holders herein.

9.                 
Rule 144A and Rule 144. So long as any Registrable Securities remain outstanding, the Company will file the
reports required to be filed by it under Rule 144A(d)(4) under the Securities Act and the reports required to be filed by it under
the Exchange Act in a timely manner and, if at any time the Company is not required to file such reports, it will, upon the written
request of any Holder of Registrable Securities, make publicly available other information so long as necessary to permit sales
of such Holder’s Registrable Securities pursuant to Rules 144 and 144A of the Securities Act. The Company covenants that
it will take such further action as any Holder of Registrable Securities may reasonably request, all to the extent required from
time to time to enable such Holder to sell Registrable Securities without registration under the Securities Act pursuant to Rule
144 or Rule 144A (including, without limitation, satisfying the requirements of Rule 144A(d)(4)). Upon the written request of any
Holder of Registrable Securities, the Company will deliver to such Holder a written statement as to whether it has complied with
such requirements. Notwithstanding anything to the contrary in this Section 9, nothing in this Section 9 will be deemed to require
the Company to register any of its securities pursuant to the Exchange Act.

10.             
Amendments and Waivers. The provisions of this Agreement may not be amended, qualified, modified or supplemented,
and waivers or consents to departures from the provisions hereof may not be given, unless the Company has obtained the written
consent of the Holders of a majority of the Registrable Securities (determined on an as-converted basis); provided, however,
that no amendment, qualification, modification, supplement, waiver or consent with respect to Section 7 hereof will be effective
as against any Holder unless consented to in writing by such Holder; provided, further, that this Section 10 may
not be amended, qualified, modified or supplemented, and waivers of or consents to departures from Section 10 may not be given,
unless the Company has obtained the written consent of each Purchaser and each Holder.

11.             
Notices. All notices and other communications provided for or permitted hereunder will be made in writing
by hand-delivery, first-class mail, telex, telecopier, email or air courier guaranteeing overnight delivery:

    	 	- 13 -	 

     

    

(a)               
if to a Holder, at the most current address given by such holder to the Company in accordance with the provisions of the
Notice and Questionnaire.

(b)              
if to any Purchaser, initially at the address thereof set forth above; and

(c)               
if to the Company, initially at its address set forth in the Purchase Agreements.

All such notices
and communications shall be deemed to have been duly given when received.

12.             
Remedies. Each Holder, in addition to being entitled to exercise all rights provided to it herein or in the
Purchase Agreement or granted by law, including recovery of liquidated or other damages, will be entitled to specific performance
of its rights under this Agreement. 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 Agreement and hereby agrees to waive in any action for specific performance
the defense that a remedy at law would be adequate.

13.             
Successors. This Agreement will inure to the benefit of and be binding upon the parties hereto, their respective
successors and assigns, including, without the need for an express assignment or any consent by the Company thereto, subsequent
Holders, and the indemnified persons referred to in Section 5 hereof. The Company hereby agrees to extend the benefits of this
Agreement to any Holder, and any such Holder may specifically enforce the provisions of this Agreement as if an original party
hereto.

14.             
Counterparts. This Agreement may be signed in one or more counterparts, each of which shall constitute an
original and all of which together shall constitute one and the same agreement.

15.             
Headings. The section headings used herein are for convenience only and shall not affect the construction
or interpretation hereof.

16.             
Applicable Law. THIS AGREEMENT WILL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE
OF NEW YORK. EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL
RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT THE TRANSACTION CONTEMPLATED HEREBY.

17.             
Severability. In the event that any one or more of the provisions contained herein, or the application thereof
in any circumstances, is held invalid, illegal or unenforceable in any respect for any reason, the validity, legality and enforceability
of any such provision in every other respect and of the remaining provisions hereof will not be in any way impaired or affected
thereby, it being intended that all of the rights and privileges of the parties will be enforceable to the fullest extent permitted
by law.

18.             
Common Stock Held by the Company, Etc. Whenever the consent or approval of Holders of a specified percentage
of securities is required hereunder, securities held by the Company or its Affiliates (other than subsequent Holders thereof if
such subsequent Holders are deemed to be Affiliates solely by reason of their holdings of such securities) will not be counted
in determining whether such consent or approval was given by the Holders of such required percentage.

    	 	- 14 -	 

     

    

 

	 	Very truly yours,
	 	 
	 	 
	 	Xtant Medical Holdings, Inc.
	 	 	 
	 	 	 
	 	By:	/s/ Daniel Goldberger
	 	 	Name: Daniel Goldberger
	 	 	Title: Chief Executive Officer

 

[Signature Page to Registration Rights Agreement]

 

    	 

     

    

 

	 	OrbiMed Royalty Opportunities II, LP	 
	 	 	 
	 	 	 
	 	By:	/s/ Samuel D. Isaly	 
	 	 	Name: Samuel D. Isaly	 
	 	 	Title: Managing member	 

 

[Signature Page to Registration Rights Agreement]

 

    	 

     

    

 

	 	ROS Acquisition Offshore LP	 
	 	 	 
	 	 	 
	 	By:	/s/ Samuel D. Isaly	 
	 	 	Name: Samuel D. Isaly	 
	 	 	Title: Managing member	 

 

[Signature Page to Registration Rights Agreement]

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