Form of Warrant issued by the Company to each investor



 Exhibit 4.1 
 THIS SECURITY AND THE SECURITIES INTO WHICH THIS SECURITY IS EXERCISABLE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”) OR THE SECURITIES LAWS OF ANY STATE OR OTHER JURISDICTION
AND MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED EXCEPT (1) PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OR (2) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT, IN EACH CASE IN
ACCORDANCE WITH ALL APPLICABLE SECURITIES LAWS OF THE STATES AND OTHER JURISDICTIONS, AND IN THE CASE OF A TRANSACTION EXEMPT FROM REGISTRATION, UNLESS THE COMPANY HAS RECEIVED AN OPINION OF COUNSEL REASONABLY SATISFACTORY TO IT THAT SUCH
TRANSACTION DOES NOT REQUIRE REGISTRATION UNDER THE SECURITIES ACT AND SUCH OTHER APPLICABLE LAWS. 
 COMMON STOCK PURCHASE WARRANT

 To Purchase __________ Shares of Common Stock of 
 Oscient Pharmaceuticals Corporation 
 THIS COMMON STOCK PURCHASE WARRANT CERTIFIES that, for value
received, _____________ (the “Holder”), is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after April ___, 2006 (the “Initial Exercise
Date”) and on or prior to the close of business on April ___, 2011 (the “Termination Date”) but not thereafter, to subscribe for and purchase from Oscient Pharmaceuticals Corporation, a corporation incorporated in the
Commonwealth of Massachusetts (the “Company”), up to ____________ shares (the “Warrant Shares”) of Common Stock, par value $0.10 per share, of the Company (the “Common Stock”). The purchase price of
one share of Common Stock (the “Exercise Price”) under this Warrant shall be $2.22, subject to adjustment hereunder. The Exercise Price and the number of Warrant Shares for which the Warrant is exercisable shall be subject to
adjustment as provided herein. Capitalized terms used and not otherwise defined herein shall have the meanings set forth in that certain Securities Purchase Agreement (the “Purchase Agreement”), dated April 5, 2006, between
the Company and the signatory thereto. 
 1. Title to Warrant. Prior to the Termination Date and subject to compliance with
applicable laws and Section 7 of this Warrant, this Warrant and all rights hereunder are transferable, in whole or in part, at the office or agency of the Company by the Holder in person or by duly authorized attorney, upon surrender of this
Warrant together with the Assignment Form annexed hereto properly endorsed. The transferee shall sign an investment letter in form and substance reasonably satisfactory to the Company. 
 2. Authorization of Shares. The Company covenants that all Warrant Shares which may be issued upon the exercise of the purchase rights represented
by this Warrant will, 

  

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upon exercise of the purchase rights represented by this Warrant, be duly authorized, validly issued, fully paid and nonassessable and free from all taxes,
liens and charges in respect of the issue thereof (other than taxes in respect of any transfer occurring contemporaneously with such issue). 
 3. Exercise of Warrant. 
 (a) Exercise of the purchase rights represented by this Warrant may be made at any
time or times on or after the Initial Exercise Date and on or before the Termination Date by the surrender of this Warrant and the Notice of Exercise Form annexed hereto duly executed, at the office of the Company (or such other office or agency of
the Company as it may designate by notice in writing to the registered Holder at the address of such Holder appearing on the books of the Company) to the attention of the Chief Financial Officer and upon payment of the Exercise Price of the shares
thereby purchased the Holder shall be entitled to receive a certificate for the number of Warrant Shares so purchased. Payment of the Exercise Price may be made at the option of the Holder by (i) by wire transfer or cashier’s check drawn
on a United States bank of United States dollars or (ii) the surrender and cancellation of Warrant Shares issuable upon such exercise of this Warrant, which shall be valued and credited toward the total Exercise Price due the Company at the
average of the daily closing bid prices of Common Stock for the five consecutive Trading Days prior to such exercise. Certificates for shares purchased hereunder shall be delivered to the Holder (at an address in the United States specified by the
Holder) within three (3) Trading Days after the date on which this Warrant shall have been exercised as aforesaid. This Warrant shall be deemed to have been exercised and such certificate or certificates shall be deemed to have been issued, and
the Holder or any other person so designated to be named therein shall be deemed to have become a holder of record of such shares for all purposes, as of the date the Warrant has been exercised by payment to the Company of the Exercise Price,
delivery of the required documentation and all taxes required to be paid by the Holder, if any, pursuant to Section 5 prior to the issuance of such shares, have been paid. 
 (b) Unless the Holder delivers to the Company irrevocable written notice prior to the date of issuance hereof or sixty-five days prior to
the exercise of this Warrant that this Section 3(b) shall not apply to such Holder, the Holder may not acquire a number of Warrant Shares to the extent that, upon such exercise, the number of shares of Common Stock then beneficially owned by
such Holder and its Affiliates and any other persons or entities whose beneficial ownership of Common Stock would be aggregated with the Holder’s for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended (the
“Exchange Act”), including shares held by any “group” of which the holder is a member, but excluding shares beneficially owned by virtue of the ownership of securities or rights to acquire securities that have limitations
on the right to convert, exercise or purchase similar to the limitation set forth herein, exceeds 4.99% (the “Maximum Percentage”) of the total number of shares of Common Stock of the Company then issued and outstanding. By written
notice to the Company, the Holder may from time to time increase or decrease the Maximum Percentage to any other percentage not in excess of 9.99% specified in such notice; provided that (i) any such increase will not be effective until the
sixty-fifth (65th) day after such notice is delivered 

  

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to the Company, and (ii) any such increase or decrease will apply only to the Holder and not to any other holder of Warrants. For purposes hereof,
“group” has the meaning set forth in Section 13(d) of the Exchange Act and applicable regulations of the Securities and Exchange Commission, and the percentage held by the holder shall be determined in a manner consistent with the
provisions of Section 13(d) of the Exchange Act. Each delivery of a notice of exercise by a Holder will constitute a representation by such Holder that it has evaluated the limitation set forth in this paragraph and determined, based on the
most recent public filings by the Company with the Commission, that the issuance of the full number of Warrant Shares requested in such notice of exercise is permitted under this paragraph. 
 (c) If this Warrant shall have been exercised in part, the Company shall, at the time of delivery of the certificate or certificates
representing Warrant Shares, deliver to Holder a new Warrant evidencing the rights of Holder to purchase the unpurchased Warrant Shares called for by this Warrant, which new Warrant shall in all other respects be identical with this Warrant.

 (d) The Holder understands that, until such time as the Registration Statement has been declared effective or the Warrant
Shares may be sold pursuant to Rule 144 under the Securities Act without any restriction as to the number of securities as of a particular date that can then be immediately sold, the certificates representing any Warrants Shares issued upon exercise
of this Warrant will bear a restrictive legend in substantially the following form: 
 “THE SECURITIES EVIDENCED BY THIS CERTIFICATE HAVE
NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”) OR THE SECURITIES LAWS OF ANY STATE OR OTHER JURISDICTION. THE SECURITIES MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED EXCEPT
(1) PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OR (2) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT, IN EACH CASE IN ACCORDANCE WITH ALL APPLICABLE SECURITIES LAWS OF THE STATES AND OTHER
JURISDICTIONS, AND IN THE CASE OF A TRANSACTION EXEMPT FROM REGISTRATION, UNLESS THE COMPANY HAS RECEIVED AN OPINION OF COUNSEL REASONABLY SATISFACTORY TO IT THAT SUCH TRANSACTION DOES NOT REQUIRE REGISTRATION UNDER THE SECURITIES ACT AND SUCH OTHER
APPLICABLE LAWS.” 
 (e) If the Company shall fail for any reason or for no reason to issue to the Holder (at an address
in the United States specified by the Holder) within three (3) Trading Days after the date the Warrant is validly exercised by payment to the Company of the Exercise Price, delivery of the required documentation and payment of all taxes
required to be paid by the Holder, if any, pursuant to Section 5 (a “Valid Exercise”), a certificate for the number of Warrant Shares to which the Holder is entitled and register such Warrant Shares on the Company’s share
register or to credit the Holder’s balance account with DTC for such number of Warrant Shares to which the Holder is entitled upon the Holder’s exercise of this Warrant, then, in addition to all other remedies 

  

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available to the Holder, the Company shall pay in cash to the Holder on each day after such third Trading Day that the issuance of such shares of Common
Stock is not timely effected an amount equal to 2.0% of the product of (A) the number of Warrant Shares not issued to the Holder on a timely basis and to which the Holder is entitled and (B) the closing sale price of the Common Stock on
the Trading Day immediately preceding the last possible date which the Company could have issued such Warrant Shares to the Holder without violating this Section 3(e) (the “Delivery Date Price”); provided,
however, that in no event shall the Company be obligated to pay damages pursuant to this sentence in an aggregate amount that exceeds 100% of the Delivery Date Price. In addition to the foregoing, if within three (3) Trading Days after
the date of a Valid Exercise the Company shall fail to issue and deliver a certificate to the Holder (at an address in the United States specified by the Holder) and register such Warrant Shares on the Company’s share register or credit the
Holder’s balance account with DTC for the number of Warrant Shares to which the Holder is entitled upon the Holder’s exercise hereunder, and if on or after such Trading Day the Holder purchases (in an open market transaction or otherwise)
shares of Common Stock to deliver in satisfaction of a sale by the Holder of Warrant Shares issuable upon such exercise that the Holder anticipated receiving from the Company (a “Buy-In”), then the Company shall, within three
(3) Trading Days after the Holder’s request promptly honor its obligation to deliver to the Holder a certificate or certificates representing such Warrant Shares and pay cash to the Holder in an amount equal to the excess (if any) of the
Holder’s total purchase price (including brokerage commissions, if any) for the shares of Common Stock so purchased over the product of (A) such number of shares of Common Stock, times (B) the Delivery Date Price. 
 4. No Fractional Shares or Scrip. No fractional shares or scrip representing fractional shares shall be issued upon the exercise of this Warrant.
As to any fraction of a share which Holder would otherwise be entitled to purchase upon such exercise, the Company shall pay a cash adjustment in respect of such final fraction in an amount equal to such fraction multiplied by the Exercise Price.

 5. Charges, Taxes and Expenses. Issuance of certificates for Warrant Shares shall be made without charge to the Holder for any
issue or transfer tax or other incidental expense in respect of the issuance of such certificate, all of which taxes and expenses shall be paid by the Company, and such certificates shall be issued in the name of the Holder or in such name or names
(provided the Holder has complied with the restrictions on transfer set forth herein) as may be directed by the Holder; provided, however, that in the event certificates for Warrant Shares are to be issued in a name other than the name
of the Holder, this Warrant when surrendered for exercise shall be accompanied by the Assignment Form attached hereto duly executed by the Holder; and the Company may require, as a condition thereto, the payment of a sum sufficient to reimburse it
for any transfer tax incidental thereto. 
 6. Closing of Books. The Company will not close its stockholder books or records in any
manner which prevents the timely exercise of this Warrant, pursuant to the terms hereof. 
  

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 7. Transfer, Division and Combination. 
 (a) Subject to compliance with any applicable securities laws and the conditions set forth in Sections 1 and 7(e) hereof, this Warrant
and all rights hereunder are transferable, in whole or in part, upon surrender of this Warrant at the principal office of the Company, together with a written assignment of this Warrant substantially in the form attached hereto duly executed by the
Holder or its agent or attorney and funds sufficient to pay any transfer taxes payable upon the making of such transfer. Upon such surrender and, if required, such payment, the Company shall execute and deliver a new Warrant or Warrants in the name
of the assignee or assignees and in the denomination or denominations specified in such instrument of assignment, and shall issue to the assignor a new Warrant evidencing the portion of this Warrant not so assigned, and this Warrant shall promptly
be cancelled. A Warrant, if properly assigned, may be exercised by a new holder for the purchase of Warrant Shares without having a new Warrant issued. 
 (b) This Warrant may be divided or combined with other Warrants upon presentation hereof at the aforesaid office of the Company, together with a written notice specifying the names and denominations in which new
Warrants are to be issued, signed by the Holder or its agent or attorney. Subject to compliance with Section 7(a), as to any transfer which may be involved in such division or combination, the Company shall execute and deliver a new Warrant or
Warrants in exchange for the Warrant or Warrants to be divided or combined in accordance with such notice. 
 (c) The Company
shall prepare, issue and deliver at its own expense (other than transfer taxes) the new Warrant or Warrants under this Section 7. 
 (d) The Company agrees to maintain, at its aforesaid office, books for the registration and the registration of transfer of the Warrants. 
 (e) Prior to, and as a condition of, any transfer of this Warrant, the Holder or transferee of this Warrant, as the case may be must
(i) furnish to the Company a written opinion of counsel (which opinion shall be in form, substance and scope customary for opinions of counsel in comparable transactions) to the effect that such transfer may be made without registration under
the Securities Act and under applicable state securities or blue sky laws, (ii) execute and deliver to the Company an investment letter in form and substance acceptable to the Company and (iii) qualify as an “accredited investor”
as defined in Rule 501(a) promulgated under the Securities Act. 
 8. No Rights as Shareholder until Exercise. This Warrant does not
entitle the Holder to any voting rights or other rights as a shareholder of the Company prior to the exercise hereof. Upon the surrender of this Warrant and the payment of the aggregate Exercise Price, the Warrant Shares so purchased shall be and be
deemed to be issued to such Holder as the record owner of such shares as of the close of business on the later of the date of such surrender or payment. 
 9. Loss, Theft, Destruction or Mutilation of Warrant. The Company covenants that upon receipt by the Company of evidence reasonably satisfactory to it of the loss, theft, 

  

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destruction or mutilation of this Warrant or any stock certificate relating to the Warrant Shares, and in case of loss, theft or destruction, of indemnity or
security reasonably satisfactory to it (which, in the case of the Warrant, shall not include the posting of any bond), and upon surrender and cancellation of such Warrant or stock certificate, if mutilated, the Company will make and deliver a new
Warrant or stock certificate of like tenor and dated as of such cancellation, in lieu of such Warrant or stock certificate. 
 10.
Saturdays, Sundays, Holidays, etc. If the last or appointed day for the taking of any action or the expiration of any right required or granted herein shall be a Saturday, Sunday or a legal holiday, then such action may be taken or such right
may be exercised on the next succeeding day not a Saturday, Sunday or legal holiday. 
 11. Adjustments of Exercise Price and Number of
Warrant Shares. The number and kind of securities purchasable upon the exercise of this Warrant and the Exercise Price shall be subject to adjustment from time to time upon the happening of any of the following. In case the Company shall
(i) pay a dividend in shares of Common Stock or make a distribution in shares of Common Stock to holders of its outstanding Common Stock, (ii) subdivide its outstanding shares of Common Stock into a greater number of shares,
(iii) combine its outstanding shares of Common Stock into a smaller number of shares of Common Stock, or (iv) issue any shares of its capital stock in a reclassification of the Common Stock, then the number of Warrant Shares purchasable
upon exercise of this Warrant immediately prior thereto shall be adjusted so that the Holder shall be entitled to receive the kind and number of Warrant Shares or other securities of the Company which it would have owned or have been entitled to
receive had such Warrant been exercised in advance thereof. Upon each such adjustment of the kind and number of Warrant Shares or other securities of the Company which are purchasable hereunder, the Holder shall thereafter be entitled to purchase
the number of Warrant Shares or other securities resulting from such adjustment at an Exercise Price per Warrant Share or other security obtained by multiplying the Exercise Price in effect immediately prior to such adjustment by the number of
Warrant Shares purchasable pursuant hereto immediately prior to such adjustment and dividing by the number of Warrant Shares or other securities of the Company resulting from such adjustment. An adjustment made pursuant to this paragraph shall
become effective immediately after the effective date of such event retroactive to the record date, if any, for such event. 
 12.
Reorganization, Reclassification, Merger, Consolidation or Disposition of Assets. In case of any capital reorganization or reclassification, or any consolidation or merger to which the Company is a party other than a merger or consolidation
in which the Company is the continuing corporation, or in case of any sale or conveyance to another entity of the property of the Company as an entirety or substantially as an entirety, or in the case of any statutory exchange of securities with
another corporation (including any exchange effected in connection with a merger of a third corporation into the Company) (each, a “Fundamental Transaction”), the Holder of this Warrant shall have the right thereafter to receive on
the exercise of this Warrant the kind and amount of securities, cash or other property which the Holder would have owned or have been entitled to receive immediately after such Fundamental Transaction had this Warrant been exercised immediately
prior to the effective date of such Fundamental Transaction and in any such case, if necessary, appropriate adjustment shall be made in the application of the provisions set forth in Section 11 with respect to the rights and interests
thereafter of the Holder of this Warrant to the end that the provisions set forth in Section 11 shall thereafter 

  

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correspondingly be made applicable, as nearly as may reasonably be, in relation to any shares of stock or other securities or property thereafter deliverable
on the exercise of this Warrant. The above provisions of this Section 12 shall similarly apply to successive Fundamental Transactions. The Company shall require the issuer of any shares of stock or other securities or property thereafter
deliverable on the exercise of this Warrant to be responsible for all of the agreements and obligations of the Company hereunder. Notice of any such Fundamental Transaction and of said provisions so proposed to be made, shall be mailed to the Holder
of this Warrant not less than thirty (30) days prior to such event. A sale of all or substantially all of the assets of the Company for a consideration consisting primarily of securities shall be deemed a consolidation or merger for the
foregoing purposes. Notwithstanding the foregoing, following a Fundamental Transaction in which all or substanitally all of the outstanding Common Stock of the Company is exchanged for, converted into, acquired for or constitutes the right to
receive solely cash (a “Triggering Event”), at the written request of the Holder delivered before the 30th day after such Triggering Event, the Company (or the successor entity) shall purchase this Warrant from the Holder by paying to the Holder, within five days after such request, cash in an amount equal to the Black-Scholes Value (as
defined below) of the remaining unexercised portion of this Warrant. “Black-Scholes Value” means the value of the unexercised portion of this Warrant calculated using the Black-Scholes Option Pricing Model determined as of the day
immediately following the public announcement of the applicable Triggering Event and reflecting (i) a risk-free interest rate corresponding to the U.S. Treasury rate for a period equal to the remaining term of this Warrant as of the date of
such request and (ii) an expected volatility equal to the 100 day volatility obtained from the HVT function on Bloomberg. 
 13.
Notice of Adjustment. Whenever the number of Warrant Shares or number or kind of securities or other property purchasable upon the exercise of this Warrant or the Exercise Price is adjusted, as herein provided, the Company shall give notice
thereof to the Holder, which notice shall state the number of Warrant Shares (and other securities or property) purchasable upon the exercise of this Warrant and the Exercise Price of such Warrant Shares (and other securities or property) after such
adjustment, setting forth a brief statement of the facts requiring such adjustment and setting forth the computation by which such adjustment was made. 
 14. Notice of Distribution. If the Board of Directors of the Company shall declare any dividend or other distribution with respect to its Common Stock other than a cash distribution out of earned surplus, the
Company shall mail notice thereof to the Holder of this Warrants not less than ten (10) days prior to the record date fixed for determining stockholders entitled to participate in such dividend or other distribution. Each such written notice
shall be sufficiently given if addressed to Holder at the last address of Holder appearing on the books of the Company and delivered in accordance with Section 16(d). 
 15. Authorized Shares. The Company covenants that during the period the Warrant is outstanding, it will reserve from its authorized and unissued
Common Stock a sufficient number of shares to provide for the issuance of the Warrant Shares upon the exercise of any purchase rights under this Warrant. The Company further covenants that its issuance of this Warrant shall constitute full authority
to its officers who are charged with the duty of executing stock certificates to execute and issue the necessary certificates for the Warrant Shares upon the exercise of the purchase rights under this Warrant. The Company will take all such
reasonable action as may be necessary to assure that such Warrant Shares may be issued as 

  

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provided herein without violation of any applicable law or regulation, or of any requirements of the Principal Market upon which the Common Stock may be
listed. 
 16. Miscellaneous. 
 (a) Jurisdiction. This Warrant shall constitute a contract under the laws of the Commonwealth of Massachusetts. 
 (b) Restrictions. The Holder acknowledges that the Warrant Shares acquired upon the exercise of this Warrant, if not registered, will have restrictions upon resale imposed by state and federal securities laws.

 (c) Nonwaiver. No course of dealing or any delay or failure to exercise any right hereunder on the part of Holder
shall operate as a waiver of such right or otherwise prejudice Holder’s rights, powers or remedies, notwithstanding all rights hereunder terminate on the Termination Date. 
 (d) Notices. Any notice, request or other document required or permitted to be given or delivered to the Holder by the Company
shall be delivered in accordance with the notice provisions of the Purchase Agreement; provided, that upon any permitted assignment of this Warrant, the assignee shall promptly provide the Company with its contact information. 
 (e) Limitation of Liability. No provision hereof, in the absence of any affirmative action by Holder to exercise this Warrant or
purchase Warrant Shares, and no enumeration herein of the rights or privileges of Holder, shall give rise to any liability of Holder for the purchase price of any Common Stock or as a stockholder of the Company, whether such liability is asserted by
the Company or by creditors of the Company. 
 (f) Remedies. Holder, in addition to being entitled to exercise all
rights granted by law, including recovery of damages, will be entitled to specific performance of its rights under this Warrant. The Company agrees that monetary damages would not be adequate compensation for any loss incurred by reason of a breach
by it of the provisions of this Warrant and hereby agrees to waive the defense in any action for specific performance that a remedy at law would be adequate. 
 (g) Successors and Assigns. Subject to applicable securities laws, this Warrant and the rights and obligations evidenced hereby
shall inure to the benefit of and be binding upon the successors of the Company and the successors and permitted assigns of Holder. The provisions of this Warrant are intended to be for the benefit of all Holders from time to time of this Warrant
and shall be enforceable by any such Holder or holder of Warrant Shares. 
 (h) Amendment. This Warrant may be
modified or amended or the provisions hereof waived with the written consent of the Company and the Holder. 
  

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 (i) Severability. Wherever possible, each provision of this Warrant shall be
interpreted in such manner as to be effective and valid under applicable law, but if any provision of this Warrant shall be prohibited by or invalid under applicable law, such provision shall be ineffective to the extent of such prohibition or
invalidity, without invalidating the remainder of such provisions or the remaining provisions of this Warrant. 
 (j)
Headings. The headings used in this Warrant are for the convenience of reference only and shall not, for any purpose, be deemed a part of this Warrant. 
 ******************** 
  

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 IN WITNESS WHEREOF, the Company has caused this Warrant to be executed by its officer thereunto duly
authorized. 
 Dated: April __, 2006 
 OSCIENT PHARMACEUTICALS CORPORATION 
  
 By:
                                        
                                        

       Name: 
       Title: 







 NOTICE OF EXERCISE 
  

	To:	Oscient Pharmaceuticals Corporation 

 (1) The undersigned
hereby elects to purchase ________ Warrant Shares of Oscient Pharmaceuticals Corporation pursuant to the terms of the attached Warrant, and tenders herewith payment of the exercise price for such Warrant Shares in full, together with all applicable
transfer taxes, if any. Payment shall take the form of lawful money of the United States. 
 (2) The undersigned hereby elects to convert the
attached Warrant into Warrant Shares of Oscient Pharmaceuticals Corporation through “cashless exercise” in the manner specified in the Warrant. This conversion is exercised with respect to ________ of the Warrant Shares covered by the
Warrant. 
 (3) Please issue a certificate or certificates representing said Warrant Shares in the name of the undersigned or in such other
name as is specified below: 
 __________________________________________ 
 The Warrant Shares shall be delivered to the following: 
 __________________________________________ 
 __________________________________________

 __________________________________________ 
 (4) Accredited Investor. The undersigned is an “accredited investor” as defined in Regulation D promulgated under the Securities Act of 1933, as amended. 
 [PURCHASER] 
 By: ______________________________ 
       Name: 
       Title: 
 Dated: ________________________ 







 ASSIGNMENT FORM 
 (To assign the foregoing warrant, execute 
 this form and supply required information. 
 Do not use this form to exercise the warrant.) 
 FOR VALUE RECEIVED, the foregoing Warrant and all rights evidenced thereby are hereby assigned to 
 _______________________________________________ whose address is 
 _______________________________________________________________. 
  
  
 _______________________________________________________________ 
  
 Dated: ______________, _______ 
 Holder’s Signature: _____________________________________ 
 Holder’s Address: ______________________________________ 
                              ______________________________________ 
 Signature Guaranteed: ___________________________________________ 
 NOTE: The signature to this Assignment Form must correspond with the name as it appears on the face of the Warrant, without alteration or enlargement or any change whatsoever, and must be guaranteed by a bank or trust
company. Officers of corporations and those acting in a fiduciary or other representative capacity should file proper evidence of authority to assign the foregoing Warrant.