Document:

EX-10.62

 Exhibit 10.62 

SELLAS LIFE SCIENCES GROUP LTD 

NOTICE OF GRANT OF STOCK OPTION 
 The
Participant has been granted an option (the “Option”) to purchase certain shares of SELLASS Life Sciences Group Ltd (the “Company”) pursuant to the SELLAS Life Sciences Group Ltd Stock
Incentive Plan #1 (the “Plan”), as follows: 
  

					
	Participant:	  	[PARTICIPANT NAME]
		
	Date of Grant:	  	[DATE OF GRANT]
		
	Number of Option Shares:	  	[NUMBER OF OPTION SHARES]
		
	Exercise Price:	  	US $2,420 per Share
		
	Option Expiration Date:	  	The date ten (10) years after the Date of Grant
		
	Tax Status of Option:	  	[INCENTIVE STOCK OPTION OR NONSTATUTORY STOCK OPTION]
		
	Vested Shares:	  	Except as provided in the Award Agreement, the number of Vested Shares (disregarding any resulting fractional share) as of any date is determined by multiplying the Number of Option Shares by the
“Vested Percentage” determined as of such date as follows:
			
	 	  	 Date
	  	 Vested Percentage

			
		  	January 1, 2018	  	33%
			
		  	January 1, 2019	  	33%
			
		  	January 1 2020	  	34%

 Capitalized terms not defined herein shall have the meaning as set forth in the Stock Incentive Plan. 

In the event of a Change in Control, the Option shall become fully vested and exercisable on the effective date of the Change in Control or an earlier date
set by the Board. 
 In the event that Participant’s Service is terminated (i) by the Company not for Cause or in conjunction with a reduction in
force, or (ii) due to Participant’s death or Disability, the Option shall become fully vested and exercisable upon the termination of Participant’s Service. 

In the event that Participant’s Service is terminated (i) by the Company for Cause, or (ii) voluntarily by Participant (other than due to
Participant’s death or Disability), any portion of the Option that is not vested and exercisable as of such date of termination shall automatically expire in accordance with the Award Agreement. 

By their signatures below, the Company and the Participant agree that the Option is governed by this Grant Notice and by the provisions of the Plan and the
Award Agreement, both of which are attached to and made a part of this document. The Participant acknowledges receipt of copies of the Plan and the Award Agreement, represents that the Participant has read and is familiar with their provisions, and
hereby accepts the Option subject to all of their terms and conditions. 
  

					
	SELLAS LIFE SCIENCES GROUP LTD. 	 		  	[PARTICIPANT NAME]
			
	 By:
	 		  	  

		 		  	Signature
	 Its:
	 		  	  

		 		  	Date
	Address:                 [COMPANY ADDRESS]	 		  	  

		 		  	Address
		 		  	  

  

			
	ATTACHMENTS:	 	SELLAS Life Sciences Group Ltd Stock Incentive Plan #1, as amended to the Date of Grant; Award Agreement and Exercise Notice

 THE SECURITIES WHICH ARE THE SUBJECT OF THIS AGREEMENT HAVE BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A VIEW TO,
OR IN CONNECTION WITH, THE SALE OR DISTRIBUTION THEREOF. NO SUCH SALE OR DISPOSITION MAY BE EFFECTED WITHOUT AN EFFECTIVE REGISTRATION STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT
REQUIRED UNDER THE SECURITIES ACT OF 1933. 
 SELLAS LIFE SCIENCES GROUP LTD. 

STOCK OPTION AWARD AGREEMENT 
 SELLAS Life
Sciences Group Ltd has granted to the Participant named in the Notice of Grant of Stock Option (the “Grant Notice”) to which this Award Agreement is attached an Option to purchase certain Shares upon the terms and
conditions set forth in the Grant Notice and this Award Agreement. The Option has been granted pursuant to and shall in all respects be subject to the terms and conditions of the SELLAS Life Sciences Group Ltd Stock Incentive Plan #1 (the
“Plan”), as amended to the Date of Grant, the provisions of which are incorporated herein by reference. By signing the Grant Notice, the Participant: (a) acknowledges receipt of, and represents that the Participant has
read and is familiar with the terms and conditions of, the Grant Notice, this Award Agreement and the Plan, (b) accepts the Option subject to all of the terms and conditions of the Grant Notice, this Award Agreement and the Plan, and
(c) agrees to accept as binding, conclusive and final all decisions or interpretations of the Board upon any questions arising under the Grant Notice, this Award Agreement or the Plan. 

1. DEFINITIONS AND CONSTRUCTION. 

1.1. Definitions. Unless otherwise defined herein, capitalized terms shall have the meanings assigned to such terms in the Grant
Notice or the Plan. 
 1.2. Construction. Captions and titles contained herein are for convenience only and shall not affect
the meaning or interpretation of any provision of this Option Agreement. Except when otherwise indicated by the context, the singular shall include the plural and the plural shall include the singular. Use of the term “or” is not intended
to be exclusive, unless the context clearly requires otherwise. 
 2. TAX CONSEQUENCES. 

2.1. Tax Status of Option. This Option is intended to have the tax status designated in the Grant Notice. 

a. Incentive Stock Option. If the Grant Notice so designates, this Option is intended to be an Incentive Stock Option
within the meaning of Section 422(b) of the Code, but the Company does not represent or warrant that this Option qualifies as such. The Participant should consult with the Participant’s own tax advisor regarding the tax effects of this
Option and the requirements necessary to obtain favorable income tax treatment under Section 422 of the Code, including, but not limited to, holding period requirements. (NOTE TO PARTICIPANT: If the Option is exercised more than three
(3) months after the date on which you cease to be an Employee (other than by reason of your death or permanent and total disability), the Option will be treated as a Nonstatutory Stock Option and not as an Incentive Stock Option.) 

  
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 2.2. ISO Fair Market Value Limitation. If the Grant Notice designates this
Option as an Incentive Stock Option, then to the extent that the Option (together with all Incentive Stock Options granted to the Participant under all stock option plans of the Participating Company Group, including the Plan) becomes
exercisable for the first time during any calendar year for shares having a Fair Market Value greater than One Hundred Thousand Dollars (US$100,000), the portion of such options which exceeds such amount will be treated as Nonstatutory Stock
Options. For purposes of this Section 2.2, options designated as Incentive Stock Options are taken into account in the order in which they were granted, and the Fair Market Value of shares is determined as of the time the option with respect to
such shares is granted. If the Code is amended to provide for a different limitation from that set forth in this Section 2.2, such different limitation shall be deemed incorporated herein effective as of the date required or permitted by such
amendment to the Code. If the Option is treated as an Incentive Stock Option in part and as a Nonstatutory Stock Option in part by reason of the limitation set forth in this Section 2.2, the Participant may designate which portion of such
Option the Participant is exercising. In the absence of such designation, the Participant shall be deemed to have exercised the Incentive Stock Option portion of the Option first. Separate certificates representing each such portion shall be issued
upon the exercise of the Option. (NOTE TO PARTICIPANT: If the aggregate Exercise Price of the Option (that is, the Exercise Price multiplied by the Number of Option Shares) plus the aggregate exercise price of any other Incentive Stock Options you
hold (whether granted pursuant to the Plan or any other stock option plan of the Participating Company Group) is greater than US$100,000, you should contact the Chief Financial Officer of the Company to ascertain whether the entire Option qualifies
as an Incentive Stock Option.) 
 3. ADMINISTRATION. 

All questions of interpretation concerning the Grant Notice, this Option Agreement, the Plan or any other form of agreement or other document
employed by the Company in the administration of the Plan or the Option shall be determined by the Board. All such determinations by the Board shall be final, binding and conclusive upon all persons having an interest in the Option, unless
fraudulent or made in bad faith. Any and all actions, decisions and determinations taken or made by the Board in the exercise of its discretion pursuant to the Plan or the Option or other agreement thereunder (other than determining questions of
interpretation pursuant to the preceding sentence) shall be final, binding and conclusive upon all persons having an interest in the Option. Any Officer shall have the authority to act on behalf of the Company with respect to any matter, right,
obligation, or election which is the responsibility of or which is allocated to the Company herein, provided the Officer has apparent authority with respect to such matter, right, obligation, or election. 

4. EXERCISE OF THE OPTION. 

4.1. Right to Exercise. Except as otherwise provided herein, the Option shall become vested and exercisable as set forth in the
Notice of Grant in an amount not to exceed the number of Vested Stock less the number of shares previously acquired upon exercise of the Option, subject to the Company’s repurchase rights set forth in Section 9. In no event shall the
Option be exercisable for more shares than the Number of Option Shares, as adjusted pursuant to Section 9. 

  
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 4.2. Method of Exercise. Exercise of the Option shall be by means of electronic or
written notice (the “Exercise Notice”) in a form authorized by the Company. An electronic Exercise Notice must be digitally signed or authenticated by the Participant in such manner as required by the notice and transmitted
to the Company or an authorized representative of the Company (including a third-party administrator designated by the Company). In the event that the Participant is not authorized or is unable to provide an electronic Exercise Notice, the Option
shall be exercised by a written Exercise Notice addressed to the Company, which shall be signed by the Participant and delivered in person, by certified or registered mail, return receipt requested, by confirmed facsimile transmission, or by such
other means as the Company may permit, to the Company, or an authorized representative of the Company (including a third-party administrator designated by the Company). Each Exercise Notice, whether electronic or written, must state the
Participant’s election to exercise the Option, the number of whole Shares for which the Option is being exercised and such other representations and agreements as to the Participant’s investment intent with respect to such shares as may be
required pursuant to the provisions of this Option Agreement. Further, each Exercise Notice must be received by the Company prior to the termination of the Option as set forth in Section 6 and must be accompanied by full payment of the
aggregate Exercise Price for the number of Shares being purchased. The Option shall be deemed to be exercised upon receipt by the Company of such electronic or written Exercise Notice and the aggregate Exercise Price. 

4.3. Payment of Exercise Price. 

a. Forms of Consideration Authorized. Except as otherwise provided below, payment of the aggregate Exercise Price for the
number of Shares for which the Option is being exercised shall be made (i) in cash or by check or cash equivalent, (ii) if permitted by the Company, by tender to the Company, or attestation to the ownership, of whole Shares owned by the
Participant having a Fair Market Value not less than the aggregate Exercise Price, (iii) by means of a Cashless Exercise, as defined in Section 4.3(b), or (iv) by any combination of the foregoing. 

b. Limitations on Forms of Consideration. 

i. Tender of Stock. Notwithstanding the foregoing, the Option may not be exercised by tender to the Company, or attestation to
the ownership, of Shares to the extent such tender or attestation would constitute a violation of the provisions of any law, regulation or agreement restricting the redemption of the Company’s shares. If required by the Company, the Option may
not be exercised by tender to the Company, or attestation to the ownership, of Shares unless such shares either have been owned by the Participant for more than six (6) months or such other period, if any, required by the Company (and not used
for another option exercise by attestation during such period) or were not acquired, directly or indirectly, from the Company. 

  
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 ii. Cashless Exercise. A “Cashless Exercise” means the
delivery of a properly executed notice together with irrevocable instructions to a broker in a form acceptable to the Company providing for the assignment to the Company of the proceeds of a sale or loan with respect to some or all of the Shares
acquired upon the exercise of the Option pursuant to a program or procedure approved by the Company (including, without limitation, through an exercise complying with the provisions of Regulation T as promulgated from time to time by the Board of
Governors of the Federal Reserve System of the United States of America). The Company reserves, at any and all times, the right, in the Company’s sole and absolute discretion, to establish, decline to approve, or terminate any such program or
procedure, including with respect to the Participant notwithstanding that such program or procedures may be available to others. 
 4.4.
Tax Withholding. 
 a. In General. At the time the Award Agreement is executed, or at any time thereafter as requested by
the Company, the Participant hereby authorizes withholding from payroll and any other amounts payable to the Participant, and otherwise agrees to make adequate provision for, any sums required to satisfy the federal, state, local and foreign tax
withholding obligations of the Company, if any, which arise in connection with the grant, vesting or exercise of the Option or the issuance of Shares in settlement thereof. The Company shall have no obligation to deliver Shares until the tax
obligations of the Company have been satisfied by the Participant. 
 b. Withholding in Securities. The Company may, in its
discretion, permit or require the Participant to satisfy all or any portion of the tax obligations by deducting from the Shares otherwise deliverable to the Participant in settlement of the Option a number of Shares having a fair market value, as
determined by the Company as of the date on which the tax obligations arise, not in excess of the amount of such tax obligations determined by the applicable withholding rates. In the event that the Company determines that the tax obligations will
not be satisfied by the method described above, Participant authorizes the designated plan administrator or any successor plan administrator, to sell a number of Shares that are purchased under the Option, which the Company determines is sufficient
to generate an amount that meets the tax obligations plus additional Shares, as necessary. To account for rounding and market fluctuation, and to pay such tax withholding amounts to the Company. The Shares may be sold as part of a block trade with
other Participants of the Plan in which all Participants receive an average price. Any adverse consequences to the Participant resulting from the procedure permitted under this Section 4.4, including, without limitation, tax consequences, shall
be the sole responsibility of the Participant. 
 c. Consultation. The Participant hereby acknowledges that he
or she understands that the Participant may suffer adverse tax consequences as a result of the Participant’s exercise of the Option or disposition of the Shares. The Participant hereby represents that the Participant has consulted with any tax
consultants the Participant deems advisable in connection with the exercise of the Option or disposition of the Shares and that the Participant is not relying on the Company for any tax advice. 

  
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 4.5. Beneficial Ownership of Shares; Certificate Registration. The Participant
hereby authorizes the Company, in its sole discretion, to deposit for the benefit of the Participant with any broker with which the Participant has an account relationship of which the Company has notice any or all shares acquired by the Participant
pursuant to the exercise of the Option. Except as provided by the preceding sentence, a certificate for the shares as to which the Option is exercised shall be registered in the name of the Participant, or, if applicable, in the names of the heirs
of the Participant. 
 4.6. Restrictions on Grant of the Option and Issuance of Shares. The grant of the Option and the
issuance of Shares upon exercise of the Option shall be subject to compliance with all applicable requirements of Applicable Laws with respect to such securities. The Option may not be exercised if the issuance of Shares upon exercise would
constitute a violation of any Applicable Laws or the requirements of any stock exchange or market system upon which the Shares may then be listed. The inability of the Company to obtain from any regulatory body having jurisdiction the authority, if
any, deemed by the Company’s legal counsel to be necessary to the lawful issuance and sale of any shares subject to the Option shall relieve the Company of any liability in respect of the failure to issue or sell such shares as to which such
requisite authority shall not have been obtained. As a condition to the exercise of the Option, the Company may require the Participant to satisfy any qualifications that may be necessary or appropriate, to evidence compliance with any applicable
law or regulation and to make any representation or warranty with respect thereto as may be requested by the Company. 
 5. TERMINATION
OF THE OPTION. 
 The Option shall terminate and may no longer be exercised after the first
to occur of (a) the close of business on the Option Expiration Date, (b) the close of business on the last date for exercising the Option following termination of the Participant’s Service as described in Section 6, or (c) a
Change in Control to the extent provided in Section 7. 
 6. EFFECT OF TERMINATION OF
SERVICE. 
 6.1. Option Exercisability. The Option shall be exercisable after the Participant’s
termination of Service to the extent it is then vested only during the applicable time period as determined below and thereafter shall terminate. 

a. Disability. If the Participant’s Service terminates because of the Disability of the Participant,
the Option, to the extent unexercised and exercisable on the date on which the Participant’s Service terminated, may be exercised by the Participant (or the Participant’s guardian or legal representative) at any time prior to the
expiration of twelve (12) months after the date on which the Participant’s Service terminated, or a later date as determined by the Board, but in any event no later than the Option Expiration Date. 

b. Death. If the Participant’s Service terminates because of the death of the Participant, the Option,
to the extent unexercised and exercisable for Vested Shares on the date on which the Participant’s Service terminated, may be exercised by the Participant’s legal representative or other person who acquired the right to exercise the Option
by reason of the Participant’s death at any time prior to the expiration of twelve (12) months after the date on 

  
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which the Participant’s Service terminated, or a later date as determined by the Board, but in any event no later than the Option Expiration Date. The Participant’s Service shall be
deemed to have terminated on account of death if the Participant dies within three (3) months after the Participant’s termination of Service. 

c. Termination for Cause. Notwithstanding any other provision of this Option Agreement, if the
Participant’s Service is terminated for Cause, the Option shall terminate and cease to be exercisable immediately upon such termination of Service. 

d. Other Termination of Service. If the Participant’s Service terminates for any reason, except
Disability, death or Cause, the Option, to the extent unexercised and exercisable for Vested Shares by the Participant on the date on which the Participant’s Service terminated, may be exercised by the Participant at any time prior to the
expiration of three (3) months after the date on which the Participant’s Service terminated, or a later date as determined by the Board, but in any event no later than the Option Expiration Date. 

e. Extension of the Option Exercise Period. At the Board’s sole discretion, the Board may unilaterally extend
the Option exercise period up to the Option Expiration Date. In the event that the Board extends the Option exercise period for an Incentive Stock Option, the Board’s action may result in a disqualifying disposition of the Incentive Stock
Option, and accordingly, the Option will be treated as a Nonstatutory Stock Option. 
 7. RIGHT OF FIRST
REFUSAL. 
 7.1. Grant of Right of First Refusal. Except as provided in Section 7.7 and
Section 12 below, in the event the Participant, the Participant’s legal representative, or other holder of shares acquired upon exercise of the Option proposes to sell, exchange, transfer, pledge, or otherwise dispose of any Vested Shares
(the “Transfer Shares”) to any person or entity, including, without limitation, any shareholder of a Participating Company, the Company shall have the right to repurchase the Transfer Shares under the terms and subject to the
conditions set forth in this Section 7 (the “Right of First Refusal”). 
 7.2. Notice of Proposed
Transfer. Prior to any proposed transfer of the Transfer Shares, the Participant shall deliver written notice (the “Transfer Notice”) to the Company describing fully the proposed transfer, including the number of Transfer
Shares, the name and address of the proposed transferee (the “Proposed Transferee”) and, if the transfer is voluntary, the proposed transfer price, and containing such information necessary to show the bona fide nature of the
proposed transfer. In the event of a bona fide gift or involuntary transfer, the proposed transfer price shall be deemed to be the Fair Market Value of the Transfer Shares, as determined by the Board in good faith. If the Participant proposes to
transfer any Transfer Shares to more than one Proposed Transferee, the Participant shall provide a separate Transfer Notice for the proposed transfer to each Proposed Transferee. The Transfer Notice shall be signed by both the Participant and the
Proposed Transferee and must constitute a binding commitment of the Participant and the Proposed Transferee for the transfer of the Transfer Shares to the Proposed Transferee subject only to the Right of First Refusal. 

7.3. Bona Fide Transfer. If the Company determines that the information provided by the

  
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Participant in the Transfer Notice is insufficient to establish the bona fide nature of a proposed voluntary transfer, the Company shall give the Participant written notice of the
Participant’s failure to comply with the procedure described in this Section 7, and the Participant shall have no right to transfer the Transfer Shares without first complying with the procedure described in this Section 7. The
Participant shall not be permitted to transfer the Transfer Shares if the proposed transfer is not bona fide. 
 7.4. Exercise of
Right of First Refusal. If the Company determines the proposed transfer to be bona fide, the Company shall have the right to purchase all, but not less than all, of the Transfer Shares (except as the Company and the Participant otherwise agree)
at the purchase price and on the terms set forth in the Transfer Notice by delivery to the Participant of a notice of exercise of the Right of First Refusal within thirty (30) days after the date the Transfer Notice is delivered to the Company.
The Company’s exercise or failure to exercise the Right of First Refusal with respect to any proposed transfer described in a Transfer Notice shall not affect the Company’s right to exercise the Right of First Refusal with respect to any
proposed transfer described in any other Transfer Notice, whether or not such other Transfer Notice is issued by the Participant or issued by a person other than the Participant with respect to a proposed transfer to the same Proposed Transferee. If
the Company exercises the Right of First Refusal, the Company and the Participant shall thereupon consummate the sale of the Transfer Shares to the Company on the terms set forth in the Transfer Notice within sixty (60) days after the date the
Transfer Notice is delivered to the Company (unless a longer period is offered by the Proposed Transferee); provided, however, that in the event the Transfer Notice provides for the payment for the Transfer Shares other than in cash, the Company
shall have the option of paying for the Transfer Shares by the present value cash equivalent of the consideration described in the Transfer Notice as reasonably determined by the Company. For purposes of the foregoing, cancellation of any
indebtedness of the Participant to any Participating Company shall be treated as payment to the Participant in cash to the extent of the unpaid principal and any accrued interest canceled. 

7.5. Failure to Exercise Right of First Refusal. If the Company fails to exercise the Right of First Refusal in full (or to such
lesser extent as the Company and the Participant otherwise agree) within the period specified in Section 7.4 above, the Participant may conclude a transfer to the Proposed Transferee of the Transfer Shares on the terms and conditions described
in the Transfer Notice, provided such transfer occurs not later than ninety (90) days following delivery to the Company of the Transfer Notice. The Company shall have the right to demand further assurances from the Participant and the Proposed
Transferee (in a form satisfactory to the Company) that the transfer of the Transfer Shares was actually carried out on the terms and conditions described in the Transfer Notice. No Transfer Shares shall be transferred on the books of the Company
until the Company has received such assurances, if so demanded, and has approved the proposed transfer as bona fide. Any proposed transfer on terms and conditions different from those described in the Transfer Notice, as well as any subsequent
proposed transfer by the Participant, shall again be subject to the Right of First Refusal and shall require compliance by the Participant with the procedure described in this Section 7. 

7.6. Transferees of Transfer Shares. All transferees of the Transfer Shares or any interest therein, other than the Company,
shall be required as a condition of such transfer to agree in writing (in a form satisfactory to the Company) that such transferee shall receive and hold 

  
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such Transfer Shares or interest therein subject to all of the terms and conditions of this Option Agreement, including this Section 7 providing for the Right of First Refusal with respect
to any subsequent transfer. Any sale or transfer of any shares acquired upon exercise of the Option shall be void unless the provisions of this Section 7 are met. 

7.7. Transfers Not Subject to Right of First Refusal. The Right of First Refusal shall not apply to any transfer or exchange of
the shares acquired upon exercise of the Option if such transfer or exchange is in connection with an Ownership Change Event. If the consideration received pursuant to such transfer or exchange consists of shares of a Participating Company, such
consideration shall remain subject to the Right of First Refusal unless the provisions of Section 7.9 below result in a termination of the Right of First Refusal. 

7.8. Assignment of Right of First Refusal. The Company shall have the right to assign the Right of First Refusal at any time,
whether or not there has been an attempted transfer, to one or more persons as may be selected by the Company. 
 7.9. Early
Termination of Right of First Refusal. The other provisions of this Option Agreement notwithstanding, the Right of First Refusal shall terminate and be of no further force and effect upon (a) the occurrence of a Change in Control, unless
the Acquiror assumes the Company’s rights and obligations under the Option or substitutes a substantially equivalent option for the Acquiror’s shares for the Option, or (b) the existence of a public market for the class of shares
subject to the Right of First Refusal. A “public market” shall be deemed to exist if (i) such shares are listed on a national securities exchange (as that term is used in the Exchange Act) or (ii) such shares are
traded on the over the counter market and prices therefor are published daily on business days in a recognized financial journal. 
 8.
SHARE DISTRIBUTIONS SUBJECT TO OPTION AGREEMENT. 

If, from time to time, there is any share dividend, bonus issue, share split, subdivision, stock split or other change, as described in
Section 4.2 of the Plan, in the character or amount of any of the outstanding shares of the Company subject to the provisions of this Option Agreement, then in such event any and all new, substituted or additional securities to which the
Participant is entitled by reason of the Participant’s ownership of the shares acquired upon exercise of the Option shall be immediately subject to the Right of First Refusal with the same force and effect as the shares subject to the Right of
First Refusal immediately before such event. 
 9. NOTICE OF SALES UPON
DISQUALIFYING DISPOSITION. 
 The Participant shall dispose of the shares acquired pursuant to the Option
only in accordance with the provisions of this Option Agreement. In addition, if the Grant Notice designates this Option as an Incentive Stock Option, the Participant shall (a) promptly notify the stock plan administrator for the Company
if the Participant disposes of any of the shares acquired pursuant to the Option within one (1) year after the date the Participant exercises all or part of the Option or within two (2) years after the Date of Grant and (b) provide
the Company with a description of the circumstances of such disposition. Until such time as the Participant disposes of such shares in a manner consistent with the provisions of this Option Agreement, unless otherwise expressly authorized by the
Company, the Participant shall hold all shares 

  
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acquired pursuant to the Option in the Participant’s name (and not in the name of any nominee) for the one-year period immediately after the exercise
of the Option and the two-year period immediately after Date of Grant. At any time during the one-year or two-year periods set
forth above, the Company may place a legend on any certificate representing shares acquired pursuant to the Option requesting the transfer agent for the Company’s Share to notify the Company of any such transfers. The obligation of the
Participant to notify the Company of any such transfer shall continue notwithstanding that a legend has been placed on the certificate pursuant to the preceding sentence. 

10. LOCK-UP AGREEMENT. 

The Participant hereby agrees that in the event of any underwritten public offering of shares, including an initial public offering of shares,
made by the Company pursuant to an effective registration statement filed under the Securities Act, the Participant shall not offer, sell, contract to sell, pledge, hypothecate, grant any option to purchase or make any short sale of, or otherwise
dispose of any Shares of the Company or any rights to acquire shares of the Company for such period of time from and after the effective date of such registration statement as may be established by the underwriter for such public offering. The
foregoing limitation shall not apply to shares registered in the public offering under the Securities Act. The Participant hereby agrees to enter into any agreement reasonably required by the underwriters to implement the foregoing within a
reasonable timeframe if so requested by the Company. 
 11. MISCELLANEOUS PROVISIONS. 

11.1. Termination or Amendment. The Board may terminate or amend the Plan or the Option at any time; provided, however, that
except as provided in Section 10 of the Plan in connection with a Change in Control and in Section 6.1(e) in connection with the extension of the Option exercise period, no such termination or amendment may adversely affect the Option or
any unexercised portion hereof without the consent of the Participant unless such termination or amendment is necessary to comply with any applicable law or government regulation. No amendment or addition to this Option Agreement shall be effective
unless in writing. 
 11.2. Compliance with Section 409A. The Company intends that income realized by the
Participant pursuant to the Plan and this Option Agreement will not be subject to taxation under Section 409A of the Code. The provisions of the Plan and this Option Agreement shall be interpreted and construed in favor of satisfying any
applicable requirements of Section 409A of the Code. The Company, in its reasonable discretion, may amend (including retroactively) the Plan and this Agreement in order to conform to the applicable requirements of Section 409A of the Code,
including amendments to facilitate the Participant’s ability to avoid taxation under Section 409A of the Code. However, the preceding provisions shall not be construed as a guarantee by the Company of any particular tax result for income
realized by the Participant pursuant to the Plan or this Option Agreement. In any event, and except for the responsibilities of the Company set forth in Section 4.4 above, no Participating Company shall be responsible for the payment of any
applicable taxes on income realized by the Participant pursuant to the Plan or this Option Agreement. 

  
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 11.3. Further Instruments. The parties hereto agree to execute such further
instruments (including, but not limited to, a joinder to the Shareholders Rights Agreement referred to in Section 14.3 of the Plan) and to take such further action as may reasonably be necessary to carry out the intent of this Option Agreement.

 11.4. Binding Effect. Subject to the restrictions on transfer set forth herein, this Option Agreement shall inure to the
benefit of and be binding upon the parties hereto and their respective heirs, executors, administrators, successors and assigns. 

11.5. Delivery of Documents and Notices. Any document relating to participation in the Plan, or any notice required or permitted
hereunder shall be given in writing and shall be deemed effectively given (except to the extent that this Option Agreement provides for effectiveness only upon actual receipt of such notice) upon personal delivery, electronic delivery at the e-mail address, if any, provided for the Participant by the Participating Company, or, upon deposit in the U.S. Post Office or foreign postal service, by registered or certified mail, or with a nationally recognized
overnight courier service with postage and fees prepaid, addressed to the other party at the address of such party set forth in the Grant Notice or at such other address as such party may designate in writing from time to time to the other party.

 a. Description of Electronic Delivery. The Plan documents, which may include but do not necessarily include: the Plan, the Grant
Notice, this Option Agreement, and any reports of the Company provided generally to the Company’s shareholders, may be delivered to the Participant electronically. In addition, if permitted by the Company, the Participant may deliver
electronically the Grant Notice and Exercise Notice called for by Section 4.2 above to the Company or to such third party involved in administering the Plan as the Company may designate from time to time. Such means of electronic delivery may
include but do not necessarily include the delivery of a link to a Company intranet or the internet site of a third party involved in administering the Plan, the delivery of the document via e-mail or such
other means of electronic delivery specified by the Company. 
 b. Consent to Electronic Delivery. The Participant acknowledges that
the Participant has read Section 11.5(a) of this Option Agreement and consents to the electronic delivery of the Plan documents and, if permitted by the Company, the delivery of the Grant Notice and Exercise Notice, as described in
Section 11.5(a). The Participant acknowledges that he or she may receive from the Company a paper copy of any documents delivered electronically at no cost to the Participant by contacting the Company by telephone or in writing. The Participant
further acknowledges that the Participant will be provided with a paper copy of any documents if the attempted electronic delivery of such documents fails. Similarly, the Participant understands that the Participant must provide the Company or any
designated third party administrator with a paper copy of any documents if the attempted electronic delivery of such documents fails. The Participant may revoke his or her consent to the electronic delivery of documents described in
Section 11.5(a) or may change the electronic mail address to which such documents are to be delivered (if Participant has provided an electronic mail address) at any time by notifying the Company of such revoked consent or revised e-mail address by telephone, postal service or electronic mail. Finally, the Participant understands that he or she is not required to consent to electronic delivery of documents described in Section 11.5(a).

  
 10 

 11.6. Integrated Agreement. The Grant Notice, this Option Agreement and the Plan,
together with any employment, service or other agreement with the Participant and a Participating Company referring to the Option, shall constitute the entire understanding and agreement of the Participant and the Participating Company Group with
respect to the subject matter contained herein or therein and supersede any prior agreements, understandings, restrictions, representations, or warranties among the Participant and the Participating Company Group with respect to such subject matter.
To the extent contemplated herein or therein, the provisions of the Grant Notice, the Option Agreement and the Plan shall survive any exercise of the Option and shall remain in full force and effect. 

11.7. Applicable Law. This Option Agreement shall be governed by the laws of the United States of America. 

11.8. Counterparts. The Grant Notice may be executed in counterparts, each of which shall be deemed an original, but all of
which together shall constitute one and the same instrument. 

  
 11 

					
	     Incentive Stock Option	  		  	Participant:
                                        

	     Nonstatutory Stock Option	  		  	Date:
                                         
         

 STOCK OPTION EXERCISE NOTICE 

SELLAS Life Sciences Group Ltd 
 Attention:
                                        

 
                                         
                 
 
                                         
                 
 Ladies and Gentlemen: 

1. Option. I was granted an option (the “Option”) to purchase common shares (the
“Shares”) of SELLAS Life Sciences Group Ltd (the “Company”) pursuant to the Company’s Stock Incentive Plan #1 (the “Plan”), my
Notice of Grant of Stock Option (the “Grant Notice”) and my Stock Option Agreement (the “Option Agreement”) as follows: 

Date of Grant:
                                        

 Number of Option Shares:
                                         
      
 Exercise Price per Share: US$
                                        

 2. Exercise of Option. I hereby elect to exercise the Option to purchase the following number of Shares, all of which are
Vested Shares, in accordance with the Grant Notice and the Option Agreement: 
 Total Shares Purchased:
                                         
                    
 Total Exercise Price
(Total Shares X Price per Share)    $
                                         
                    
 3.
Payments. I enclose payment in full of the total exercise price for the Shares in the following form(s), as authorized by my Option Agreement: 

    
Cash:                                        
                                         
                                         
                      
$                     

    
Check:                                        
                                         
                                         
                     $                    

      Tender of Company Shares:
                                         
                                       Contact Plan
Administrator 
 4. Tax Withholding. I authorize payroll withholding and otherwise will make adequate provision for the
federal, state, local and foreign tax withholding obligations of the Company, if any, in connection with the Option. If I am exercising a Nonstatutory Stock Option, I enclose payment in full of my withholding taxes, if any, as follows: 

(Contact Plan Administrator for amount of tax due.) 

    Cash:                  
                                         
                                         
                                         
    $                     

    
Check:                                        
                                         
                                         
                    $                     

5. Participant Information. 

My address
is:                                        
                                         
                                         
                                   

                                         
                                         
                                         
                                         
                
 My Tax Identification Number
is:                                        
                                         
                                         
    
 7. Repurchase Rights. 

A. Company Repurchase Right – Termination for Cause. I hereby agree that if my Service to the Company is terminated for Cause, the
Company or its assignee of rights hereunder shall upon the date of the termination (the “Termination Date”) have an irrevocable right and exclusive option (the “Repurchase Right”) to repurchase from
me, or my personal representative, as the case may be, all or any portion of the exercised Shares received pursuant to the Agreement at Fair Market Value on the date the Repurchase Right is exercised (the “Repurchase Price”).
Subject to this Section 7, the Repurchase Right may be exercised in writing by the Company at any time after the later to occur of (i) the Termination Date and (ii) the six- (6) month
anniversary of the date the Shares were acquired by me. 

  
 12 

 B. Payment. The Company, at its election, may satisfy its payment obligation
to me with respect to exercise of the Repurchase Right by either (i) delivering a check to me in the amount of the aggregate Repurchase Price for the Shares being repurchased, or (ii) in the event that I am indebted to the Company,
offsetting the aggregate Repurchase Price for the Shares being repurchased with an amount of such indebtedness equal to the aggregate Repurchase Price for the Shares being repurchased, or (iii) by a combination of (i) and (ii) so that the
combined payment and cancellation of indebtedness equals the aggregate Repurchase Price. At its election, the Company or its assignee of rights hereunder may elect to make payment for the Shares to a bank selected by the Company. The Company shall
avail itself of this election by a notice in writing to me stating the name and address of the bank, date of closing, and waiving the closing at the Company’s office. As a result of any repurchase of Shares pursuant to this Section 7, the
Company shall become the legal and beneficial owner of the Shares being repurchased and shall have all rights and interest therein or related thereto to the extent permitted by Applicable Laws and Company’s memorandum of association and bye-laws, and the Company shall have the right to transfer to its own name the number of Shares being repurchased by the Company, without further action by me. 

C. Change in Control. In the event of Change in Control, any Repurchase Right under this Section 7 shall remain in
full force and effect and shall apply to the new shares of capital received in exchange for the Shares in consummation of the Change in Control. 

D. Lapse. Notwithstanding any other provision of this Agreement, any Repurchase Right provided in this Section 7
shall terminate as to any Shares upon the earlier to occur of (i) Qualified Public Offering and (ii) a Change in Control in which the successor corporation has equity securities that are publicly traded. 

E. Power of Attorney. I hereby grant an irrevocable power of attorney to the Company to sell and transfer the Shares in
my name to the Company at Fair Market Value, subject to (i) the Company exercising the Repurchase Right, and (ii) the terms and conditions included in this Agreement and the Plan. In performing acts pursuant to this power of attorney, the
Company may act pursuant to a power of attorney granted by one or more other persons involved in the acts referred to in the previous sentence. 

8. Binding Effect. I agree that the Shares are being acquired in accordance with and subject to the terms, provisions and
conditions of the Grant Notice, the Option Agreement, including the Right of First Refusal set forth therein, and the Plan, to all of which I hereby expressly assent. This Agreement shall inure to the benefit of and be binding upon my heirs,
executors, administrators, successors and assigns. 
 I understand that I am purchasing the Shares pursuant to the terms of the Plan, the
Grant Notice and my Option Agreement, copies of which I have received and carefully read and understand. 
 Very truly yours, 

 
 
                                         
                    
 (Signature) 

Receipt of the above is hereby acknowledged. 
 SELLAS Life
Sciences Group Ltd 

By:                         
                                         
                                         
         

Title:                         
                                         
                                         
      

Dated:                         
                                         
                                         
    
 
                                         
                                         
                                        

  
 13EX-10.63

 Exhibit 10.63 

SELLAS LIFE SCIENCES GROUP LTD 

NOTICE OF GRANT OF RESTRICTED STOCK UNITS 

The Participant has been granted the number of Restricted Stock Units set forth below (the “RSUs”) pursuant to the
SELLAS Life Sciences Group Ltd Stock Incentive Plan #1 (the “Plan”), as follows: 
  

					
	 Participant:
	 	  
	    	
			
	 Date of Grant:
	 	  
	    	
			
	 Number of Restricted Stock Units:
	 	  
	    	
		
	 Vested Stock:
	 	Subject to the satisfaction of the Vesting Criteria set forth below, the RSUs shall become vested and the Shares shall be issued to Participant in accordance with the terms of the Plan, the Award Agreement, and this
Notice of Grant. The two Vesting Criterion that must be satisfied are (i) the Service Criterion and (ii) the Liquidity Event Criterion.
		
		 	 1.      Service Criterion

			
		 		    	Vested Percentage
		 	[Date]	    	[%]
		 	[Date]	    	[%]
		 	[Date]	    	[%]
		
		 	 In the event of a Change in Control, the Service Criterion shall be accelerated and deemed to be fully satisfied on the
effective date of the Change in Control or an earlier date set by the Board.
  
 In the
event that Participant’s Service is terminated (i) by the Company not for Cause or in conjunction with a reduction in force, or (ii) due to Participant’s death or Disability, the Service Criterion shall be accelerated and deemed
to be fully satisfied on the effective date of termination of Service.
  
 In the event
that Participant’s Service is terminated (i) by the Company for Cause, or (ii) voluntarily by Participant (other than due to Participant’s death or Disability), any portion of the RSU that is not vested as of such date of
termination shall automatically expire in accordance with the Award Agreement.
  

2.      Liquidity Event

 
 This Vesting Criterion will be satisfied upon the first of the following events to
occur:
  
 a. Change of Control. The vested RSU shares shall
be issued to the Participant concurrent with the effective date of the Change of Control. In this case, the Participant will have the same rights concerning the Shares as any other Company shareholder on the effective date of the Change of
Control.
  
 b. Qualified Initial Placement Offer. In the
event of a qualified initial placement offer, the vested RSU shares will be issued to the Participant on the following date after the date of the qualified initial placement offer.

 
 •    Six (6) months
following the qualified initial placement offer: 33%
  

•    Eighteen (18) months following the qualified initial placement offer: 33%

 
 •    Thirty
(30) months following the qualified initial placement offer: 34%

					
		 	 For the purposes of this RSU, the term “qualified initial placement offer” shall mean: the
closing of an underwritten public offering (i) pursuant to an effective registration statement under the U.S. Securities Act of 1933; or (ii) on the basis of an approved prospectus and/or pursuant to a valid registration, qualification or filing
under applicable law of another jurisdiction, in each case of the Shares or other equity securities of the Company.

		
		 	So long as Participant has satisfied all or a portion of the Service Criterion before Participant’s termination of Service, Participant or Participant’s heirs shall remain eligible to receive the RSU shares
upon the occurrence of the Liquidity Event Criterion.
		
	Expiration Date	 	If a Change of Control or qualified initial placement offer does not occur by the 10th anniversary of the Date of Grant, the RSU will be forfeited by Participant
and Participant will not be issued any Shares under the RSU.

 Capitalized terms not defined herein shall have the meaning as set forth in the Stock Incentive Plan. 

By signing below, the Participant agrees that the Company, its directors, officers and shareholders shall not be held liable for any tax, penalty, interest or
cost incurred by the Participant as a result of such determination by the applicable tax authority. The Participant is urged to consult with his or her own tax advisor regarding the tax consequences of the RSUs. 

By their signatures below, the Company and the Participant agree that the RSUs are governed by this Grant Notice and by the provisions of the Plan and the
Restricted Stock Unit Agreement, both of which are attached to and made a part of this document. The Participant acknowledges receipt of copies of the Plan and the Restricted Stock Unit Agreement, represents that the Participant has read and is
familiar with their provisions, and hereby accepts the RSUs subject to all of their terms and conditions. 
  

					
	SELLAS LIFE SCIENCES GROUP LTD	 		 	PARTICIPANT
			
	By:                                     
                                     	 		 	  

		 		 	Signature
	Its:                                     
                                      	 		 	  

		 		 	Date
	Address:	 		 	  

		 		 	Address
		 		 	  

 ATTACHMENTS: Stock Incentive Plan as amended to the Date of Grant; Restricted Stock Unit Agreement 

 THE SECURITIES WHICH ARE THE SUBJECT OF THIS AGREEMENT HAVE BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A VIEW TO,
OR IN CONNECTION WITH, THE SALE OR DISTRIBUTION THEREOF. NO SUCH SALE OR DISPOSITION MAY BE EFFECTED WITHOUT AN EFFECTIVE REGISTRATION STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT
REQUIRED UNDER THE SECURITIES ACT OF 1933. 
 SELLAS LIFE SCIENCES GROUP LTD 

RESTRICTED STOCK UNIT AGREEMENT 

SELLAS Life Sciences Group Ltd has granted to the Participant named in the Notice of Grant of Restricted Stock Units (the
“Grant Notice”) to which this Restricted Stock Unit Agreement (the “Agreement”) is attached a number of Restricted Stock Units (the “RSUs”) pursuant to the terms and conditions
set forth in the Grant Notice and this Agreement. The RSUs have been granted pursuant to the SELLAS Life Sciences Group Ltd Stock Incentive Plan #1 (the “Plan”), as amended to the Date of Grant, the provisions of which are
incorporated herein by reference. By signing the Grant Notice, the Participant: (a) acknowledges receipt of, and represents that the Participant has read and is familiar with the terms and conditions of, the Grant Notice, this Agreement and the
Plan, (b) accepts the RSUs subject to all of the terms and conditions of the Grant Notice, this Agreement and the Plan, and (c) agrees to accept as binding, conclusive and final all decisions or interpretations of the Board upon any
questions arising under the Grant Notice, this Agreement or the Plan. 
 1. DEFINITIONS AND
CONSTRUCTION. 
 1.1 Definitions. Unless otherwise defined herein,
capitalized terms shall have the meanings assigned to such terms in the Grant Notice or the Plan. 
 1.2
Construction. Captions and titles contained herein are for convenience only and shall not affect the meaning or interpretation of any provision of this Agreement. Except when otherwise indicated by the context, the
singular shall include the plural and the plural shall include the singular. Use of the term “or” is not intended to be exclusive, unless the context clearly requires otherwise. 

2. ADMINISTRATION. 

All questions of interpretation concerning the Grant Notice, this Agreement, the Plan or any other form of agreement or other document
employed by the Company in the administration of the Plan or the RSUs shall be determined by the Board. All such determinations by the Board shall be final, binding and conclusive upon all persons having an interest in the RSUs, unless fraudulent or
made in bad faith. Any and all actions, decisions and determinations taken or made by the Board in the exercise of its discretion pursuant to the Plan or the RSUs or other agreement thereunder (other than determining questions of interpretation
pursuant to the preceding sentence) shall be final, binding and conclusive upon all persons having an interest in the RSUs. Any Officer shall have the authority to act on behalf of the Company with respect to any matter, right, obligation, or
election which is the responsibility of or which is allocated to the Company herein, provided the Officer has apparent authority with respect to such matter, right, obligation, or election. 

 3. VESTING. 

Subject to the limitations contained herein, the RSUs shall vest as provided in the Grant Notice. 

4. DIVIDENDS. 

The Participant shall not receive any payment or other adjustment in the number of RSUs for dividends or other distributions that may be made
in respect of the Shares to which the RSUs relate. 
 5. DISTRIBUTION OF
SHARES. 
 In the event that the Company determines that the Participant
is subject to its policy regarding insider trading of the Company’s shares and any Shares subject to the RSUs are scheduled to be delivered on a day (the “Original Distribution Date”) that does not occur during an
applicable “window period,” as determined by the Company in accordance with such policy, then such Shares shall not be delivered on such Original Distribution Date and shall instead be delivered as soon as practicable within the next
applicable “window period” pursuant to such policy. 
 6. NUMBER OF
SHARES. 
 The number of RSU shares may be adjusted from time to time for
capitalization adjustments, as provided in Section 4.2 of the Plan. 
 7. SECURITIES LAW
COMPLIANCE. 
 The Participant may not be issued any Shares pursuant to
the RSUs unless the Shares are either (i) then registered under the Applicable Laws or (ii) the Company has determined that such issuance would be exempt from the registration requirements of the Applicable Laws. 

8. EXECUTION OF DOCUMENTS. 

The Participant hereby acknowledges and agrees that the manner selected by the Company to indicate the Participant’s consent to the Grant
Notice is also deemed to be execution of the Grant Notice and of this Agreement. The Participant further agree that such manner of indicating consent may be relied upon as the Participant’s signature for establishing execution of any documents
to be executed in the future in connection with the RSUs. This Agreement shall be deemed to be signed by the Company and the Participant upon the respective signing by the Company and the Participant of the Grant Notice to which it is attached. 

 9. RSUS NOT A SERVICE
CONTRACT. 
 The RSUs are not an employment or service contract, and
nothing in the RSUs shall be deemed to create in any way whatsoever any obligation on the Participant to continue in the service of the Company or Participating Company, or on the part of the Company or Participating Company to continue such
service. In addition, nothing in the RSUs shall obligate the Company or Participating Companies, their respective shareholders, boards of directors, Officers or Employees to continue any relationship that the Participant might have as an Employee,
Director or Consultant for the Company or Participating Company. 
 10. UNSECURED
OBLIGATION. 
 The RSUs are unfunded, and as a holder of vested number of
RSUs, the Participant shall be considered an unsecured creditor of the Company with respect to the Company’s obligation, if any, to issue Shares pursuant to Section 5 of this Agreement. 

11. TAX WITHHOLDING. 

11.1 In General. At the time this Agreement is executed, or at any time thereafter as requested by the Company, the Participant
hereby authorizes withholding from payroll and any other amounts payable to the Participant, and otherwise agrees to make adequate provision for, any sums required to satisfy the tax withholding obligations of the Company, if any, which arise in
connection with the grant or vesting of the RSUs or the issuance of Shares in settlement thereof. The Company shall have no obligation to deliver Shares until the tax obligations of the Company have been satisfied by the Participant. 

11.2 Withholding in Securities. The Company may, in its discretion, permit or require the Participant to satisfy all or any
portion of the tax obligations by deducting from the Shares otherwise deliverable to the Participant in settlement of the RSUs a number of Shares having a fair market value, as determined by the Company as of the date on which the tax obligations
arise, not in excess of the amount of such tax obligations determined by the applicable withholding rates. In the event that the Company determines that the tax obligations will not be satisfied by the method described above, the Participant
authorizes the designated plan administrator or any successor plan administrator, to sell a number of Shares otherwise deliverable to the Participant in settlement of the RSUs, which the Company determines is sufficient to generate an amount that
meets the tax obligations plus additional Shares, as necessary to account for rounding and market fluctuation, and to pay such tax withholding amounts to the Company. The Shares may be sold as part of a block trade with other Participants of the
Plan in which all Participants receive an average price. Any adverse consequences to the Participant resulting from the procedure permitted under this Section 11.2, including, without limitation, tax consequences, shall be the sole
responsibility of the Participant. 
 11.3 Consultation. The Participant hereby acknowledges that he or
she understands that the Participant may suffer adverse tax consequences as a result of participation in the Plan. The Participant hereby represents that the Participant has consulted with tax consultants in connection with the Award and that the
Participant is not relying on the Company for any tax advice. 

 11.4 Beneficial Ownership of Shares; Certificate Registration.
The Participant hereby authorizes the Company, in its sole discretion, to deposit for the benefit of the Participant with any broker with which the Participant has an account relationship of which the Company has notice any or all shares
acquired by the Participant pursuant to the settlement of the RSUs. Except as provided by the preceding sentence, a certificate for the shares pursuant to the RSUs shall be registered in the name of the Participant, or, if applicable, in the names
of the heirs of the Participant. 
 12. NON TRANSFERABILITY OF THE
RSUS. 
 The RSUs and the rights and privileges conferred hereby shall not be sold, pledged or
otherwise transferred (whether by operation of law or otherwise) in any manner otherwise than by will or by the laws of descent or distribution, shall not be subject to sale under execution, attachment, levy or similar process and may be exercised
during the lifetime of the Participant only by the Participant. The terms of the Plan and the Award Agreement shall be binding upon the executors, administrators, heirs, successors and assigns of the Participant. 

13. RIGHTS AS A SHAREHOLDER, DIRECTOR, EMPLOYEE
OR CONSULTANT. 
 The Participant shall have no rights as
a shareholder with respect to any Shares related to the RSUs until the date of issuance of the Shares pursuant to the RSUs (as evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company). No
adjustment shall be made for dividends, distributions or other rights for which the record date is prior to the date the Shares are issued, except as otherwise provided by the Board. If the Participant is an Employee, the Participant understands and
acknowledges that, except as otherwise provided in a separate, written employment agreement between a Participating Company and the Participant, the Participant’s employment is “at will” and is for no specified term. Nothing in this
Agreement shall confer upon the Participant any right to continue in the Service of a Participating Company or interfere in any way with any right of the Participating Company Group to terminate the Participant’s Service as a Director, an
Employee or Consultant, as the case may be, at any time. 
 14. MISCELLANEOUS PROVISIONS. 

14.1 Termination or Amendment. The Board may terminate or amend the Plan or the RSUs at any time. 

14.2 Further Instruments. The parties hereto agree to execute such further instruments (including, but not limited to, a joinder
to the Shareholders Rights Agreement referred to in Section 14.3 of the Plan) and to take such further action as may reasonably be necessary to carry out the intent of this Agreement. 

14.3 Binding Effect. Subject to the restrictions on transfer set forth herein, this Agreement shall inure to the benefit of and
be binding upon the parties hereto and their respective heirs, executors, administrators, successors and assigns. 
 14.4 Integrated
Agreement. The Grant Notice, this Agreement and the Plan, together with any employment, service or other agreement with the Participant and a Participating 

 
Company referring to the RSUs, shall constitute the entire understanding and agreement of the Participant and the Participating Company Group with respect to the subject matter contained herein
or therein and supersede any prior agreements, understandings, restrictions, representations, or warranties among the Participant and the Participating Company Group with respect to such subject matter. To the extent contemplated herein or therein,
the provisions of the Grant Notice, this Agreement and the Plan shall survive any vesting of the RSUs and shall remain in full force and effect. 

14.5 Applicable Law. This Agreement shall be governed by the laws of the United States of America. 

14.6 Counterparts. The Grant Notice may be executed in counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

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