EX-4.4





 Exhibit 4.4 

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

VEDANTRA PHARMACEUTICALS, INC. 
  

			
	 Warrant Shares:
[                 ]
 Warrant
No.: 2018-[    ]
	  	 Initial Exercise Date: August 24, 2018


 THIS COMMON STOCK PURCHASE WARRANT (the “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 the date hereof (the “Initial Exercise Date”) and on or prior to the
close of business on the ten (10) year anniversary of the Initial Exercise Date (the “Termination Date”) but not thereafter, to subscribe for and purchase from Vedantra Pharmaceuticals, Inc., a Delaware corporation (the
“Company”), up to [                ] shares (the “Warrant Shares”) of the Company’s common stock, par value $0.01 per share
(“Common Stock”). 
 Section 1.    Definitions. Capitalized terms used
and not otherwise defined herein shall have the meanings set forth in that certain Series B Preferred Stock Purchase Agreement (the “Purchase Agreement”) dated August 24, 2018, by and between the Company, the Holder and the
other signatories thereto. 
 Section 2.    Exercise. 

a)    Exercise of Warrant. Exercise of the purchase rights represented by this Warrant may be made, in whole or in
part, at any time and from time to time on or after the Initial Exercise Date and on or before the Termination Date by delivery to 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 the Holder appearing on the books of the Company) of a duly executed facsimile copy of the notice of exercise form annexed hereto as Appendix A (the “Notice of Exercise”); and, within three
(3) business days of the date said Notice of Exercise is delivered to the Company, the Company shall have received payment of the aggregate Exercise Price of the Warrant Shares thereby purchased by wire transfer or cashier’s check drawn on
a United States bank, or, if available, pursuant to the cashless exercise procedure specified in Section 2(d) below. 

  
 1 













 
Notwithstanding anything herein to the contrary, the Holder shall not be required to physically surrender this Warrant to the Company until the Holder has purchased all of the Warrant Shares
available hereunder and the Warrant has been exercised in full, in which case, the Holder shall surrender this Warrant to the Company for cancellation within three (3) business days of the date the final Notice of Exercise is delivered to the
Company. Partial exercises of this Warrant resulting in purchases of a portion of the total number of Warrant Shares available hereunder shall have the effect of lowering the outstanding number of Warrant Shares purchasable hereunder in an amount
equal to the applicable number of Warrant Shares purchased. The Holder and the Company shall maintain records showing the number of Warrant Shares purchased and the date of such purchases. The Company shall deliver any objection to any Notice of
Exercise Form within four (4) business days of receipt of such notice. In the event of any dispute or discrepancy, the records of the Company shall be controlling and determinative in the absence of manifest error. The Holder and any
assignee, by acceptance of this Warrant, acknowledge and agree that, by reason of the provisions of this paragraph, following the purchase of a portion of the Warrant Shares hereunder, the number of Warrant Shares available for purchase hereunder at
any given time may be less than the amount stated on the face hereof. 
 b)    Exercise Price. The exercise
price per share of the Common Stock under this Warrant shall be equal to $1.10, subject to adjustment as provided herein (the “Exercise Price”). 

c)    Cashless Exercise. At any time the Common Stock is quoted or reported on a Trading Market, this Warrant may
be exercised, in whole or in part, from time to time in accordance with the terms hereof (including this Section 2(d)) by means of a “cashless exercise” (the “Cashless Exercise”) in which the Holder shall be entitled
to receive a number of Warrant Shares equal to the quotient obtained by dividing [(A-B) (X)] by (A), where: 
  

	 	(A) =	 the closing price of the Company’s Common Stock on the Trading Market on the Trading Day immediately
preceding the date on which Holder elects to exercise this Warrant by means of a “cashless exercise,” as set forth in the applicable Notice of Exercise; 



 

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



 

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



“Trading Day” means a day on which the principal Trading Market is open for trading. 

“Trading Market” means (i) the securities market or exchange on which the Common Stock is principally listed or quoted
for trading on the date in question, including the NYSE American, the NASDAQ Capital Market, the Nasdaq Global Market or the Nasdaq Global Select Market (or any successors to any of the foregoing) or (ii) if the Common Stock is not then listed
or quoted for trading on any such securities market or exchange and if prices for the Common Stock are then reported in the “Pink Sheets,” OTC Markets, Inc. (or a similar organization or agency succeeding to its functions of reporting
prices). 












 d)    Mechanics of Exercise. 

(i)    Delivery of Certificates Upon Exercise. Certificates for the Warrant Shares purchased or exercised hereunder
shall be transmitted by the Company’s transfer agent to the Holder by crediting the account of the Holder’s broker with the Depository Trust Company through its Deposit Withdrawal Agent Commission (“DWAC”) system if the
Company is then a participant in such system and either (A) there is an effective registration statement permitting to the resale of the Warrant Shares by the Holder or (B) the Warrant Shares are eligible for resale without volume or manner-of-sale limitations pursuant to Rule 144, and otherwise by physical delivery to the address specified by the Holder in the Notice of Exercise within three
(3) business days from the delivery to the Company of the Notice of Exercise Form, surrender of this Warrant (if required), and payment of the aggregate Exercise Price as set forth above (unless such Warrant Shares are exercised pursuant to the
Cashless Exercise, if permitted) (such date, the “Warrant Share Delivery Date”). This Warrant shall be deemed to have been exercised, the Warrant Shares 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 (or by Cashless Exercise, if permitted)
and all taxes required to be paid by the Holder, if any, pursuant to Section 2(e)(vi) prior to the issuance of such shares, have been paid. 

(ii)    Delivery of New Warrants Upon Exercise. If this Warrant shall have been exercised in part, the Company
shall, at the request of a Holder and upon surrender of this Warrant, promptly deliver to the Holder a new Warrant evidencing the rights of the Holder to purchase the unpurchased Warrant Shares called for by this Warrant, which new Warrant shall in
all other respects be identical with this Warrant in all material respects. 
 (iii)    Rescission Rights. If,
following receipt by the Company of a duly executed and properly completed Notice of Exercise Form from a Holder, the Company fails to cause the Company’s transfer agent to transmit to the Holder a certificate or certificates representing the
Warrant Shares pursuant to Section 2(e)(i) by the Warrant Share Delivery Date, then the Holder will have the right to rescind such exercise. 

(iv)    Compensation for Buy-In on Failure to Timely Deliver Warrant Shares
Upon Exercise. This Section 2(e)(iv) shall only apply if the Common Stock is quoted or reported on a Trading Market. If, following receipt by the Company of a duly executed and properly completed Notice of Exercise Form from a Holder, the
Company fails, prior to the applicable Warrant Share Delivery Date, to, in accordance with the provisions of Section 2(e)(i) above, (i) deliver to such Holder the applicable certificate or certificates or (ii) cause its transfer agent
to credit the account of such Holder or such Holder’s broker, and if after such Warrant Share Delivery Date the Holder is required by its broker to purchase (in an open market transaction or otherwise), or the Holder’s brokerage firm is
required to purchase, shares of Common Stock to deliver in satisfaction of a sale by such Holder of the Warrant Shares which such Holder was entitled to receive upon such exercise (a
“Buy-In”), then the Company shall (A) 












 
pay in cash to the Holder the amount, if any, by which (x) the Holder’s total purchase price (including brokerage commissions, if any) for the shares of Common Stock so purchased
exceeds (y) the product of (1) the aggregate number of Warrant Shares that the Holder was entitled to receive from the exercise at issue (or, if less, the number of shares actually delivered in satisfaction of such sale) and (2) the
actual price at which the sell order giving rise to such purchase obligation was executed (including any brokerage commissions), and (B) at the option of the Holder, either reissue (if surrendered) the portion of the Warrant and equivalent
number of Warrant Shares for which such exercise was not honored (in which case such exercise shall be deemed rescinded) or deliver to the Holder the number of shares of Common Stock that would have been issued had the Company timely complied with
its exercise and delivery obligations hereunder. For example, if the Holder purchases Common Stock having a total purchase price of $11,000 to cover a Buy-In with respect to an attempted exercise of shares of
Common Stock with an aggregate sale price giving rise to such purchase obligation of $10,000, under clause (A) of the immediately preceding sentence the Company shall be required to pay the Holder $1,000. The Holder shall provide the Company
written notice indicating the amounts payable to the Holder in respect of the Buy-In and, upon request of the Company, evidence of the amount of such loss. Nothing herein shall limit a Holder’s right to
pursue any other remedies available to it hereunder, at law or in equity including, without limitation, a decree of specific performance and/or injunctive relief with respect to the Company’s failure to timely deliver shares of Common Stock
upon exercise of the Warrant as required pursuant to the terms hereof. 
 (v)    No Fractional Shares or Scrip.
No fractional shares or scrip representing fractional shares shall be issued upon the exercise of this Warrant. As to any fraction of a share which the Holder would otherwise be entitled to purchase upon such exercise, the Company shall, at its
election, either pay a cash adjustment in respect of such final fraction in an amount equal to such fraction multiplied by the Exercise Price or round up to the next whole share. 

(vi)    Charges, Taxes and Expenses. Issuance of 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 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 (x) the Assignment Form attached hereto as Appendix B duly executed by the Holder, and such other documentation as the Company may require regarding the assignee, as a condition thereto, and (y) the payment of a sum
sufficient to reimburse it for any transfer tax incidental thereto, if any. 
 (vii)    Closing of Books. The
Company will not close its stockholder books or records in any manner which prevents the timely exercise of this Warrant, pursuant to the terms hereof. 

Section 3.    Certain Adjustments. 

a)    Stock Dividends and Splits. If the Company, at any time while this Warrant is outstanding: (i) pays a
dividend or otherwise makes a distribution or distributions on 












 
shares of Common Stock or any other equity or equity equivalent securities payable in shares of Common Stock (which, for avoidance of doubt, shall not include any shares of Common Stock issued by
the Company upon exercise of this Warrant or upon the conversion of any convertible preferred stock, or any debt securities), (ii) subdivides outstanding shares of Common Stock into a larger number of shares, (iii) combines (including by way of
reverse stock split) outstanding shares of Common Stock into a smaller number of shares or (iv) issues by reclassification of shares of Common Stock any shares of capital stock of the Company, then, in each case, (1) the Exercise Price
shall be multiplied by a fraction of which (x) the numerator shall be the number of shares of Common Stock (excluding treasury shares, if any) outstanding immediately before such event and (y) the denominator shall be the number of shares
of Common Stock outstanding immediately after such event and (2) the number of shares issuable upon exercise of this Warrant shall be proportionally adjusted (rounded up to the nearest whole share), such that the aggregate Exercise Price for
all of the Warrant Shares shall remain unchanged (subject to rounding). Any adjustment made pursuant to this Section 3(a) shall become effective immediately after the effective date of the applicable event described in subsection
(i) through (iv) above. 
 b)    Fundamental Transaction. If, at any time while this Warrant is outstanding,
the Company, directly or indirectly, in one or more related transactions, (i) effects any merger or consolidation of the Company with or into another person, (ii) effects any sale, lease, license, assignment, transfer, conveyance or other
disposition of all or substantially all of its assets, (iii) is the subject of any purchase offer, tender offer or exchange offer (whether by the Company or another person) that is completed pursuant to which holders of Common Stock are
permitted to sell, tender or exchange their shares for other securities, cash or property and such offer has been accepted by the holders of 50% or more of the outstanding Common Stock, (iv) effects any reclassification, reorganization or
recapitalization of the Common Stock or any compulsory share exchange pursuant to which the Common Stock is effectively converted into or exchanged for other securities, cash or property, (v) consummates a stock or share purchase agreement or
other business combination (including, without limitation, a reorganization, recapitalization, spin-off or scheme of arrangement) with another person or “group” (as such term is defined in
Section 13(d) of the Exchange Act) whereby such other person or group acquires more than 50% of the outstanding shares of Common Stock (including any shares of Common Stock held by the other person or other persons making or party to, or
associated or affiliated with the other persons making or party to, such stock or share purchase agreement or other business combination) (each a “Fundamental Transaction”), then, upon any subsequent exercise of this Warrant in
accordance with the terms hereof (including payment of the Exercise Price), the Holder shall have the right to receive, for each Warrant Share that would have been issuable upon such exercise immediately prior to the occurrence of such Fundamental
Transaction, the number of shares of capital stock of the successor or acquiring corporation or of the Company, if it is the surviving corporation, and any additional consideration, whether in cash, securities or otherwise (the “Alternate
Consideration”), payable with respect to each share of Common Stock in connection with such Fundamental Transaction. For purposes of any such exercise, the Exercise Price shall be appropriately allocated to apply to such Alternate
Consideration based on the amount of Alternate Consideration issuable in respect of one share of Common Stock in such Fundamental Transaction, and the Company shall, in its sole discretion, apportion the Exercise Price among the Alternate
Consideration in a reasonable manner reflecting the relative value of any different components of the Alternate Consideration. If holders of Common Stock are given any choice as to the securities, cash or property to be received in a Fundamental
Transaction, then the Holder 












 
shall be given the same choice as to the Alternate Consideration it receives upon any exercise of this Warrant following such Fundamental Transaction. The Company shall cause any successor entity
in a Fundamental Transaction in which the Company is not the survivor (the “Successor Entity”) to assume in writing all of the obligations of the Company under this Warrant and the other Transaction Documents in accordance with the
provisions of this Section 3(c) and shall, at the option and request of the Holder, deliver to the Holder in exchange for this Warrant a security of the Successor Entity evidenced by a written instrument substantially similar in form and
substance to this Warrant which is exercisable for the Alternate Consideration, and with an exercise price equal to the Exercise Price. Upon the occurrence of any such Fundamental Transaction, the Successor Entity shall succeed to, and be
substituted for (so that from and after the date of such Fundamental Transaction, the provisions of this Warrant and the other Transaction Documents referring to the “Company” shall refer instead to the Successor Entity), and may
exercise every right and power of the Company and shall assume all of the obligations of the Company under this Warrant and the other Transaction Documents with the same effect as if such Successor Entity had been named as the Company herein. 

c)    Calculations. All calculations under this Section 3 shall be made to the nearest cent or the nearest
1/100th of a share, as the case may be. 
 d)    Notice to the Holder. 

(i)    Adjustment to Exercise Price. Whenever the Exercise Price is adjusted pursuant to any provision of this
Section 3, the Company shall promptly mail to the Holder a notice setting forth the Exercise Price after such adjustment and setting forth a brief statement of the facts requiring such adjustment. 

(ii)    Notice to Allow Exercise by Holder. If (A) the Company shall declare a dividend (or any other
distribution in whatever form) on the Common Stock, (B) the Company shall declare a special nonrecurring cash dividend on or a redemption of the Common Stock, (C) the Company shall authorize the granting to all holders of the Common Stock
rights or warrants to subscribe for or purchase any shares of capital stock of any class or of any rights, (D) the approval of any stockholders of the Company shall be required in connection with any reclassification of the Common Stock, any
consolidation or merger to which the Company is a party, any sale or transfer of all or substantially all of the assets of the Company, of any compulsory share exchange whereby the Common Stock is converted into other securities, cash or property,
or (E) the Company shall authorize the voluntary or involuntary dissolution, liquidation or winding up of the affairs of the Company, then, in each case, the Company shall cause to be mailed to the Holder at its last address as it shall appear
upon the Warrant Register (as defined below) of the Company, at least twenty (20) calendar days prior to the applicable record or effective date hereinafter specified, a notice stating (x) the date on which a record is to be taken for the
purpose of such dividend, distribution, redemption, rights or warrants, or if a record is not to be taken, the date as of which the holders of the Common Stock of record to be entitled to such dividend, distributions, redemption, rights or warrants
are to be determined or (y) the date on which such reclassification, consolidation, merger, sale, transfer or share exchange is expected to become effective or close, and the date as of which it is expected that holders of the Common Stock of
record shall be entitled to exchange their shares of the Common Stock for securities, cash or other property deliverable upon such reclassification, consolidation, merger, 












 
sale, transfer or share exchange; provided that the failure to mail such notice or any defect therein or in the mailing thereof shall not affect the validity of the corporate action required to
be specified in such notice. The Holder is entitled to exercise this Warrant during the period commencing on the date of such notice to the effective date of the event triggering such notice. 

Section 4.    Transfer of Warrant. 

a)    Transferability. Subject to compliance with any applicable federal and state securities laws and the
satisfaction and delivery of any reasonable conditions and documentation required by the Company, and to the applicable provisions of the Purchase Agreement, 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 or its designated agent, together with a written assignment of this Warrant substantially in the form attached hereto duly executed by the Holder or its agent or attorney and funds sufficient to
pay any transfer taxes payable upon the making of such transfer. Upon such surrender and, if required, such payment, the Company shall execute and deliver a new Warrant or Warrants in the name of the assignee or assignees, as applicable, and in the
denomination or denominations specified in such instrument of assignment, and shall issue to the assignor a new Warrant evidencing the portion of this Warrant not so assigned, and this Warrant shall promptly be cancelled. The Warrant, if properly
assigned, may be exercised by a new holder for the purchase of Warrant Shares without having a new Warrant issued. 

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

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

Section 5.    Miscellaneous. 

a)    No Rights as Stockholder Until Exercise. This Warrant does not entitle the Holder to any voting rights or
other rights as a stockholder of the Company prior to the exercise hereof as set forth in Section 2(a). 

b)    Loss, Theft, Destruction or Mutilation of Warrant. The Company covenants that upon receipt by the Company of
evidence reasonably satisfactory to it of the loss, theft, destruction or mutilation of this Warrant or any stock certificate relating to the Warrant 












 
Shares, and in case of loss, theft or destruction, of indemnity or security reasonably satisfactory to it (which, in the case of the Warrant, shall not include the posting of any bond), and upon
surrender and cancellation of such Warrant or stock certificate, if mutilated, the Company will, make and deliver a new Warrant or stock certificate of like tenor and dated as of such cancellation, in lieu of such Warrant or stock certificate. 

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

d)    Authorized Shares. 

The Company covenants that, during the period the Warrant is outstanding, it will reserve from its authorized and unissued Common Stock a
sufficient number of shares to allow for the issuance of the Warrant Shares upon the exercise of this Warrant. The Company further covenants that its officers are authorized 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 provided herein without violation of any applicable law or regulation or
of any requirements of the trading market upon which the Common Stock may be listed. The Company covenants that all Warrant Shares which may be issued upon the exercise of the purchase rights represented by this Warrant will, upon exercise of the
purchase rights represented by this Warrant, be duly authorized, validly issued, fully paid and nonassessable and free from all taxes, liens and charges created by the Company in respect of the issue thereof (other than taxes in respect of any
transfer occurring contemporaneously with such issue). 
 Except and to the extent waived or consented to by the Holder, the Company shall
not, including, without limitation, by amending its certificate of incorporation or through any reorganization, transfer of assets, consolidation, merger, dissolution, issue or sale of securities or any other voluntary action, avoid or seek to avoid
the observance or performance of any of its obligations pursuant to this Warrant, but will at all times act in good faith in the carrying out of all its obligations hereunder. Without limiting the generality of the foregoing, the Company will
(A) not increase the par value of any Warrant Shares above the amount payable therefor upon such exercise immediately prior to such increase in par value, (B) take all such action as may be necessary or appropriate in order that the
Company may validly and legally issue fully paid and nonassessable Warrant Shares upon the exercise of this Warrant and (C) use commercially reasonable efforts to obtain all such authorizations, exemptions or consents from any public regulatory
body having jurisdiction thereof, as may be, necessary to enable the Company to perform its obligations under this Warrant, including, without limitation, in connection with any action which would result in an adjustment in the number of Warrant
Shares for which this Warrant is exercisable or in the Exercise Price. 
 e)    Jurisdiction. All questions
concerning the construction, validity, enforcement and interpretation of this Warrant shall be determined in accordance with the terms of the Purchase Agreement. 












 f)    Restrictions. The Holder acknowledges that the Warrant
Shares acquired upon the exercise of this Warrant will have restrictions upon resale imposed by state and federal securities laws. 
 g)
Nonwaiver and Expenses. No course of dealing or any delay or failure to exercise any right hereunder on the part of either party shall operate as a waiver of such right or otherwise prejudice either party’s rights, powers or remedies,
notwithstanding the fact that all rights hereunder terminate on the Termination Date. If the Company willfully and knowingly fails to comply with any provision of this Warrant, which results in any material damages to the Holder, the Company shall
pay to the Holder such amounts as shall be sufficient to cover any costs and expenses including, but not limited to, reasonable and documented attorneys’ fees, including those of appellate proceedings, incurred by the Holder in collecting any
amounts due pursuant hereto or in otherwise enforcing any of its rights, powers or remedies hereunder. 

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

i)    Limitation of Liability. No provision hereof, in the absence of any affirmative action by the Holder to
exercise this Warrant to purchase Warrant Shares, and no enumeration herein of the rights or privileges of the Holder, shall give rise to any liability of the Holder for the purchase price of any Common Stock or as a stockholder of the Company,
whether such liability is asserted by the Company or by creditors of the Company. 
 j)    Remedies. The Holder,
in addition to being entitled to exercise all rights granted by law, including recovery of damages, will be entitled to seek specific performance of its rights under this Warrant. The Company agrees that monetary damages would not be adequate
compensation for any loss incurred by reason of a breach by it of the provisions of this Warrant and hereby agrees to waive and not to assert the defense in any action for specific performance that a remedy at law would be adequate. 

k)    Successors and Assigns. Subject to applicable federal and state securities laws, this Warrant and the rights
and obligations evidenced hereby are intended to be and shall inure to the benefit of, and be binding upon and enforceable by, the successors of the Company and the successors and permitted assigns of the Holder. 

l)    Amendment. This Warrant may be modified or amended or the provisions hereof waived with the written consent
of the Company and the holders of a majority of the then outstanding warrants issued pursuant to the Purchase Agreement. 

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












 o)    Registration Rights. The Warrant Shares are subject to
certain registration rights set forth in the Investors’ Rights Agreement, dated as of August 24, 2018, among the Company, the Holder and each of the other investors parties thereto. 

[Signature Page Follows] 












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

			
	VEDANTRA PHARMACEUTICALS, INC.
		
	By:	 	  

		 	 Name:
 Title:















 APPENDIX A 

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

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

[     ] in lawful money of the United States; or 

[     ] by the cancellation of such number of Warrant Shares as is necessary, in accordance with the formula set forth in
subsection 1(d), to exercise this Warrant with respect to the maximum number of Warrant Shares purchasable pursuant to the cashless exercise procedure set forth in subsection 1(d). 

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

 

	
	
                      
                                         
             


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

 

	
	
                      
                                         
             

	
	
                      
                                         
             


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

 

	
	Name of Investing
Entity:                                        
                                         
                                         
                                    
	Signature of Authorized Signatory of Investing
Entity:                                       
                                         
                                 
	Name of Authorized
Signatory:                                       
                                         
                                         
                            
	Title of Authorized
Signatory:                                       
                                         
                                         
                              
	Date:                                     
                                         
                                         
                                         
                               


  
 12 













 APPENDIX B 

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, [    ] all of or
[                ] shares of the foregoing Warrant and all rights evidenced thereby are hereby assigned to 

 

	
	                                     
                                         
                                   whose address is
	
	                                      
                                         
                                         
                    
	
	                                      
                                         
                                         
                    

  

			
		
		 	
Dated:                 
            

		
	 the Holder’s Signature:
	 	
                   
                     

		
	 the 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. 

  
 13