EX-10.11



 Exhibit 10.11 

EMPLOYMENT AGREEMENT 

This Employment Agreement (the “Agreement”) is by and between Surface Oncology, Inc. (the “Company”) and Scott Chappel,
Ph.D. (the “Executive”) and is made effective as of the closing of the Company’s first underwritten public offering of its equity securities pursuant to an effective registration statement under the Securities Act of 1933, as amended
(the “Effective Date”). Except with respect to the Restrictive Covenants Agreements and the Equity Documents (each as defined below), this Agreement supersedes, amends and restates in all respects all prior agreements between the Executive
and the Company regarding the subject matter herein, including without limitation any offer letter, employment agreement or severance agreement. 

1. Employment Term. The Company and the Executive desire to continue their employment relationship, pursuant to this
Agreement commencing as of the date hereof and continuing in effect until terminated by either party in accordance with this Agreement (the “Term”). The Executive’s employment with the Company will continue to be “at will,”
meaning that the Executive’s employment may be terminated by the Company or the Executive at any time and for any reason subject to the terms of this Agreement. If the Executive’s employment with the Company is terminated for any reason,
the Company shall pay or provide to the Executive (or to his authorized representative or estate) any earned but unpaid Base Salary (as defined below), unpaid expense reimbursements in accordance with Company policy, accrued but unused vacation, if
any, and any vested benefits the Executive may have under any employee benefit plan of the Company (collectively, the “Accrued Obligations”). 

2. Position and Duties. The Executive shall hold the position of Chief Technology Officer. The Executive will have such
powers and duties as may from time to time be prescribed by the Company’s Chief Executive Officer (the “CEO”) or another designated Company executive. The Executive shall devote his full working time and best efforts, skill,
knowledge, attention and energies to the business and affairs of the Company and to the performance of the Executive’s duties and responsibilities as an employee of the Company. While the Executive renders services to the Company, he will not
engage in any other employment, consulting or other business activity (whether full-time or part-time) without prior written authorization from the CEO. Notwithstanding the foregoing, the Executive may engage in religious, charitable or other
community activities as long as such services and activities do not interfere with the Executive’s performance of his duties to the Company. The Executive reaffirms that he has no contractual commitments or other legal obligations that would
prohibit him from fully performing his duties for the Company. The Executive shall be based at the Company’s headquarters, currently in Cambridge, Massachusetts. 

3. Compensation and Related Matters. 

(a) Base Salary. The Executive’s annual base salary is $359,000, which is subject to review and redetermination by the Company.
The annual base salary in effect at any given time is referred to herein as “Base Salary.” The Base Salary will be payable in a manner that is consistent with the Company’s usual payroll practices for executive employees. 







 (b) Bonus. During the Term, the Executive will be eligible to be considered for annual
cash bonus as determined by the Company. The Executive’s annual target bonus is 35% of the Base Salary, which is subject to review and redetermination by the Board or the Compensation Committee. The annual target bonus in effect at any given
time is referred to herein as the “Target Bonus.” The actual bonus shall be discretionary and shall be subject to terms and conditions of any applicable bonus plan as may be adopted from time to time. The Executive’s bonus, if any,
will be paid by March 15 of the year following the applicable bonus year. To earn a bonus, the Executive must be employed by the Company on the day such bonus is paid. 

(c) Employee Benefits. During the Term, the Executive will be entitled to continue to participate in the Company’s employee
benefit plans and programs, subject to the terms and the conditions of such plans and to the Company’s ability to amend, modify, replace or terminate such plans and programs. 

(d) Equity. The equity awards held by the Executive shall be governed by the terms and conditions of the Company’s applicable
equity incentive plan(s), the applicable award agreement(s) governing the terms of such equity awards held by the Executive, and Section 3(a) of the Executive’s prior offer letter dated July 15, 2014 (as modified by the
“Accelerated Vesting Waiver” in the Incentive Stock Option Agreement under the Surface Oncology 2014 Stock Option Grant and Plan dated March 2, 2018, the “Modified Acceleration Provision”) (collectively, the
“Equity Documents”); provided, however, and notwithstanding anything to the contrary in the Equity Documents, Section 6(c) of this Agreement shall apply in the event of a Qualified Termination Event within the
Change in Control Period (as defined below) and to the extent accelerated vesting did not already occur upon a Change in Control in accordance with the Modified Acceleration Provision. 

(e) Reimbursement of Business Expenses. The Company shall reimburse the Executive for business expenses reasonably and necessarily
incurred by the Executive in connection with the Company’s business. Expense reimbursement shall be subject to the policies the Company may adopt from time to time, including with respect to pre-approval
and limitations. Any reimbursement in one calendar year shall not affect the amount that may be reimbursed in any other calendar year and a reimbursement (or right thereto) may not be exchanged or liquidated
for another benefit or payment. Any business expense reimbursements subject to Section 409A of the Code shall be made no later than the end of the calendar year following the calendar year in which such business expense is
incurred by the Executive. 
 4. Certain Definitions. 

(a) Change in Control. “Change in Control” means (i) the sale of all or substantially all of the assets of the
Company on a consolidated basis to an unrelated person or entity, (ii) a merger, reorganization or consolidation pursuant to which the holders of the Company’s outstanding voting power and outstanding stock immediately prior to such
transaction do not own a majority of the outstanding voting power and outstanding stock or other equity interests of the resulting or successor entity (or its ultimate parent, if applicable) immediately upon completion of such transaction,
(iii) the sale of all of the outstanding voting 

  
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stock of the Company to an unrelated person, entity or group thereof acting in concert, or (iv) any other transaction in which the owners of the Company’s outstanding voting
power immediately prior to such transaction do not own at least a majority of the outstanding voting power of the Company or any successor entity immediately upon completion of the transaction other than as a result of the acquisition of securities
directly from the Company; provided, however, that the Company’s Initial Public Offering, any subsequent public offering or another capital raising event, or a merger effected solely to change the Company’s domicile shall not constitute a
“Change in Control.” 
 (b) Change in Control Period. “Change in Control Period” means the period beginning on
the date of a Change in Control and ending on the one-year anniversary of the Change in Control. 

(c) Disability. An Executive becomes “Disabled” for purposes of this Agreement if through any illness, injury, accident or
condition of either a physical or psychological nature the Executive becomes unable to perform substantially all of his duties and responsibilities for a continuous period of thirteen (13) consecutive weeks or for any twenty
(20) weeks within a fifty-two (52) week period. Determinations as to whether Executive is Disabled shall be made by a physician selected by the Board or its insurers and acceptable to
the Executive or the Executive’s legal representative, such agreement as to acceptability not to be unreasonably withheld or delayed. In the interest of clarity, the Board may designate another employee to act in the Executive’s place
during any period the Executive becomes unable to perform substantially all of his duties and responsibilities. 
 (d) Qualified
Termination Event. A “Qualified Termination Event” means termination of the Executive’s employment by the Company under the circumstances set forth below in Section 4(d)(i) (Termination by the Company without Cause) or
Section 4(d)(ii) (“The Executive’s Resignation for Good Reason”), in any event subject to provisions in Section 4(e). 

(i) Termination by the Company without Cause. Termination by the Company of the Executive’s employment without
Cause. For purposes of this Agreement, “Cause” means the Executive’s: 
 (A) unauthorized use or disclosure
of the Company’s confidential information or trade secrets, which use or disclosure causes material harm to the Company; 

(B) material breach of any agreement between the Executive and the Company; 

(C) material failure to comply with the Company’s written policies or rules; 

(D) conviction of, or plea of “guilty” or “no contest” to, a felony under the laws of the United States or
any State; 

  
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 (E) gross negligence or willful misconduct in the performance of the
Executive’s duties to the Company;  
 (F) continuing failure to perform assigned duties after receiving written
notification of the failure from the Board of Directors; or 
 (G) failure to cooperate in good faith with a governmental or
internal investigation of the Company or its directors, officers or employees, if the Company has requested the Executive’s cooperation. 

(ii) The Executive’s Resignation for Good Reason. The Executive’s resignation of his employment with the
Company for Good Reason. For purposes of this Agreement, “Good Reason” means that the Executive has complied with the “Good Reason Process” (hereinafter defined) following the occurrence of any of the following events: 

(A) a reduction in the Executive’s Base Salary (as pro-rated based on the
Executive’s business time devoted to the Company) by more than 10%; 
 (B) a material diminution of the
Executive’s authority, duties or responsibilities; or 
 (C) a relocation of the Executive’s principal workplace
by more than 30 miles. 
 “Good Reason Process” means that (i) the Executive reasonably determines in good faith that
a “Good Reason” condition has occurred; (ii) the Executive notifies the Company in writing of the first occurrence of the Good Reason condition within 90 days of the first occurrence of such condition; (iii) the
Executive cooperates in good faith with the Company’s efforts, for a period not less than 30 days following such notice (the “Cure Period”), to remedy the condition; (iv) notwithstanding such efforts, the Good Reason
condition continues to exist; and (v) the Executive terminates his employment within 30 days after the end of the Cure Period. If the Company cures the Good Reason condition during the Cure Period, Good Reason shall be deemed not to have
occurred. 
 (e) A Qualified Termination Event shall not be deemed to have occurred pursuant to this Section as a result of:
(i) the ending of the Executive’s employment due to the Executive’s death or Disability, (ii) the Executive’s resignation for any reason, other than for Good Reason, (iii) the Company’s
termination of the employment relationship for Cause; or (iv) solely as a result of the Executive being or becoming an employee of any direct or indirect successor to the business or assets of the Company rather than continuing as an
employee of the Company following a Change in Control. 
 5. Termination. During the Term, the Executive’s employment
hereunder may be terminated without any breach of this Agreement under the following circumstances: 

  
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 (a) Death. The Executive’s employment hereunder shall terminate upon
his death. 
 (b) Disability. The Company may terminate the Executive’s employment if he is Disabled, as defined
above. 
 (c) Termination by the Company for Cause. The Company may terminate the Executive’s employment
hereunder for Cause. 
 (d) Termination by the Company without Cause. The Company may terminate the Executive’s
employment hereunder at any time without Cause. 
 (e) Termination by the Executive. The Executive may terminate his
employment hereunder at any time for any reason, including but not limited to Good Reason. 
 6. Severance and Accelerated
Vesting if a Qualified Termination Event Occurs within the Change in Control Period. In the event a Qualified Termination Event occurs within the Change in Control Period, subject to the Executive signing and complying with a separation
agreement in a form and manner satisfactory to the Company containing, among other provisions, a general release of claims in favor of the Company and related persons and entities, confidentiality, return of property,
non-disparagement and reaffirmation of any restrictive covenants (the “Separation Agreement and Release”) and the Separation Agreement and Release becoming irrevocable, all within the time period set
forth in the Separation Agreement and Release but in no event more than 60 days after the Date of Termination, the following shall occur: 

(a) the Company shall pay to the Executive an amount equal to the sum of twelve (12) months the Executive’s Base Salary in
effect immediately prior to the Qualified Termination Event (or the Executive’s Base Salary in effect immediately prior to the Change in Control, if higher) plus one (1) times the amount of the Executive’s Target Bonus; 

(b) if the Executive was participating in the Company’s group health plan immediately prior to the Date of Termination and elects COBRA
health continuation, then the Company shall pay to the Executive a lump sum cash payment in an amount equal to the monthly employer contribution that the Company would have made to provide health insurance to the Executive if the Executive had
remained employed by the Company for twelve (12) months after the Date of Termination, based on the premiums as of the Date of Termination; and 

(c) 100% of all time-based equity awards held by the Executive shall immediately accelerate and become fully exercisable or nonforfeitable as
of the Date of Termination. 
 The amounts payable under Section 6(a) and (b), as applicable, shall be paid out in a lump sum within 60 days after the
Date of Termination; provided, however, that if the 60-day period begins in one calendar year and ends in a second calendar year, the amounts shall be paid in the second calendar year no later
than the last day of the 60-day period. 

  
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 7. Severance if a Qualified Termination Event Occurs Outside the Change in Control
Period. In the event a Qualified Termination Event occurs at any time other than during the Change in Control Period, subject to the Executive signing and not revoking the Separation Agreement and Release, all within the time period set
forth in the Separation Agreement and Release but in no event more than 60 days after the Date of Termination, and subject to the Executive complying with the Separation Agreement and Release, the following shall occur: 

(a) the Company shall pay to the Executive an amount equal to the sum of nine (9) months of the Executive’s annual Base Salary
in effect immediately prior to the Qualified Termination Event; and 
 (b) if the Executive was participating in the Company’s group
health plan immediately prior to the Date of Termination and elects COBRA health continuation, then the Company shall pay to the Executive a monthly cash payment for nine (9) months or the Executive’s COBRA health continuation period,
whichever ends earlier, in an amount equal to the monthly employer contribution that the Company would have made to provide health insurance to the Executive if the Executive had remained employed by the Company, based on the premiums as of the Date
of Termination. 
 The amounts payable under Section 7(a) and (b) shall be paid out in substantially equal installments in
accordance with the Company’s payroll practice over nine (9) months commencing within 60 days after the Date of Termination; provided, however, that if the 60-day period begins in one
calendar year and ends in a second calendar year, the severance shall begin to be paid in the second calendar year by the last day of such 60-day period; provided further, that the initial payment shall
include a catch-up payment to cover amounts retroactive to the day immediately following the Date of Termination. Each payment pursuant to this Agreement is intended to constitute a separate payment for
purposes of Treasury Regulation Section 1.409A-2(b)(2). 
 8. Restrictive
Covenants Agreement. The terms of the Employee Non-Competition, Non-Solicitation, Confidentiality and Assignment Agreement dated July 1, 2014 (the “2014 Restrictive Covenants Agreement”) and the Employee Non-Competition,
Non-Solicitation, Confidentiality and Assignment Agreement dated May 3, 2017 between the Company and the Executive, attached hereto as Exhibit A (the “2017 Restrictive Covenants Agreement”) continue to be in full force and effect.
The 2014 Restrictive Covenants Agreement and the 2017 Restrictive Covenants Agreement are collectively referred to as the “Restrictive Covenants Agreements.” The Executive agrees that the term “Company,” as used in the
Restrictive Covenants Agreements, shall mean the Company, its subsidiaries and other affiliates, and its and their successors and assigns. The Executive hereby reaffirms the terms of both Restrictive Covenants Agreements, as modified herein, as
material terms of this Agreement and agrees and acknowledges that such terms are incorporated by reference in this Agreement. The Executive and the Company agree that in the event of any inconsistencies between the 2014 Restrictive Covenants
Agreement and the 2017 Restrictive Covenants Agreement, the 2017 Restrictive Covenants Agreement will be controlling. 
 (a) Third-Party
Agreements and Rights. The Executive hereby confirms that the Executive is not bound by the terms of any agreement with any previous employer or other party that restricts in any way the Executive’s use or disclosure of information or the
Executive’s engagement in any business. The Executive represents to the Company that the Executive’s execution of this Agreement, the Executive’s employment with the Company and the performance of the Executive’s proposed duties
for the Company will not violate any obligations 

  
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the Executive may have to any such previous employer or other party. In the Executive’s work for the Company, the Executive will not disclose or make use of any information in violation of
any agreements with or rights of any such previous employer or other party, and the Executive will not bring to the premises of the Company any copies or other tangible embodiments of non-public information
belonging to or obtained from any such previous employment or other party. 
 (b) Litigation and Regulatory Cooperation. During and
after the Executive’s employment, the Executive shall cooperate fully with the Company in the defense or prosecution of any claims or actions now in existence or which may be brought in the future against or on behalf of the Company which
relate to events or occurrences that transpired while the Executive was employed by the Company. The Executive’s full cooperation in connection with such claims or actions shall include, but not be limited to, being available to meet with
counsel to prepare for discovery or trial and to act as a witness on behalf of the Company at mutually convenient times. During and after the Executive’s employment, the Executive also shall cooperate fully with the Company in connection with
any investigation or review of any federal, state or local regulatory authority as any such investigation or review relates to events or occurrences that transpired while the Executive was employed by the Company. The Company shall reimburse the
Executive for any reasonable out-of-pocket expenses incurred in connection with the Executive’s performance of obligations pursuant to this Section 8(b). 

(c) Relief. The Executive agrees that it would be difficult to measure any damages caused to the Company which might result from any
breach by the Executive of the promises set forth in this Section 8, and that in any event money damages would be an inadequate remedy for any such breach. Accordingly, the Executive agrees that if the Executive breaches, or proposes to breach,
any portion of this Agreement, the Company shall be entitled, in addition to all other remedies that it may have, to an injunction or other appropriate equitable relief to restrain any such breach without showing or proving any actual damage to the
Company. In addition, in the event the Executive breaches either of the Restrictive Covenants Agreements during a period when he is receiving severance payments pursuant to Section 6 or 7, the Company shall have the right to suspend or
terminate such severance payments. Such suspension or termination shall not limit the Company’s other options with respect to relief for such breach and shall not relieve the Executive of his duties under this Agreement. 

(d) Protected Disclosures and Other Protected Actions. Nothing in this Agreement shall be interpreted or applied to prohibit the
Executive from making any good faith report to any governmental agency or other governmental entity (a “Government Agency”) concerning any act or omission that the Executive reasonably believes constitutes a possible violation of federal
or state law or making other disclosures that are protected under the anti-retaliation or whistleblower provisions of applicable federal or state law or regulation. In addition, nothing contained in this Agreement limits the Executive’s ability
to communicate with any Government Agency or otherwise participate in any investigation or proceeding that may be conducted by any Government Agency, including the Executive’s ability to provide documents or other information, without notice to
the Company. In addition, for the avoidance of doubt, pursuant to the federal Defend Trade Secrets Act of 2016, the Executive shall not be held criminally or civilly liable under any federal or state trade secret law or under this Agreement or the
Restrictive Covenants Agreements for the disclosure of a trade secret that (a) is made (i) in confidence to a federal, state, or local government official, either directly or indirectly, or to an attorney; and (ii) solely for the
purpose of reporting or investigating a suspected violation of law; or (b) is made in a complaint or other document filed in a lawsuit or other proceeding, if such filing is made under seal. 

  
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 9. Additional Limitation. 

(a) Anything in this Agreement to the contrary notwithstanding, in the event that the amount of any compensation, payment or distribution by
the Company to or for the benefit of the Executive, whether paid or payable or distributed or distributable pursuant to the terms of this Agreement or otherwise, calculated in a manner consistent with Section 280G of the Code and the
applicable regulations thereunder (the “Aggregate Payments”), would be subject to the excise tax imposed by Section 4999 of the Code, then the Aggregate Payments shall be reduced (but not below zero) so that the sum of all of
the Aggregate Payments shall be $1.00 less than the amount at which the Executive becomes subject to the excise tax imposed by Section 4999 of the Code; provided that such reduction shall only occur if it would result in the Executive
receiving a higher After Tax Amount (as defined below) than the Executive would receive if the Aggregate Payments were not subject to such reduction. In such event, the Aggregate Payments shall be reduced in the following order, in each case, in
reverse chronological order beginning with the Aggregate Payments that are to be paid the furthest in time from consummation of the transaction that is subject to Section 280G of the Code: (1) cash payments not subject to
Section 409A of the Code; (2) cash payments subject to Section 409A of the Code; (3) equity-based payments and acceleration; and (4) non-cash forms
of benefits; provided that in the case of all the foregoing Aggregate Payments all amounts or payments that are not subject to calculation under Treas. Reg. §1.280G-1,
Q&A-24(b) or (c) shall be reduced before any amounts that are subject to calculation under Treas. Reg. §1.280G-1,
Q&A-24(b) or (c). 
 (b) For purposes of this Section 9, the “After Tax Amount”
means the amount of the Aggregate Payments less all federal, state, and local income, excise and employment taxes imposed on the Executive as a result of the Executive’s receipt of the Aggregate Payments. For purposes of determining the After
Tax Amount, the Executive shall be deemed to pay federal income taxes at the highest marginal rate of federal income taxation applicable to individuals for the calendar year in which the determination is to be made, and state and local income taxes
at the highest marginal rates of individual taxation in each applicable state and locality, net of the maximum reduction in federal income taxes which could be obtained from deduction of such state and local taxes. 

(c) The determination as to whether a reduction in the Aggregate Payments shall be made pursuant to Section 9 shall be made by a
nationally recognized accounting firm selected by the Company (the “Accounting Firm”), which shall provide detailed supporting calculations both to the Company and the Executive within 15 business days of the Date of Termination, if
applicable, or at such earlier time as is reasonably requested by the Company or the Executive. Any determination by the Accounting Firm shall be binding upon the Company and the Executive. 

  
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 10. Section 409A. 

(a) Anything in this Agreement to the contrary notwithstanding, if at the time of the Executive’s “separation from service”
within the meaning of Section 409A of the Code, the Company determines that the Executive is a “specified employee” within the meaning of Section 409A(a)(2)(B)(i) of the Code, then to the extent any payment or
benefit that the Executive becomes entitled to under this Agreement on account of the Executive’s separation from service would be considered deferred compensation subject to the 20 percent additional tax imposed pursuant to
Section 409A(a) of the Code as a result of the application of Section 409A(a)(2)(B)(i) of the Code, such payment shall not be payable and such benefit shall not be provided until the date that is the earlier of (A) six months
and one day after the Executive’s separation from service, or (B) the Executive’s death. 
 (b) The parties intend
that this Agreement will be administered in accordance with Section 409A of the Code. To the extent that any provision of this Agreement is ambiguous as to its compliance with Section 409A of the Code, the provision shall be read in
such a manner so that all payments hereunder comply with Section 409A of the Code. The parties agree that this Agreement may be amended, as reasonably requested by either party, and as may be necessary to fully comply with
Section 409A of the Code and all related rules and regulations in order to preserve the payments and benefits provided hereunder without additional cost to either party. 

(c) All in-kind benefits provided and expenses eligible for reimbursement under this Agreement shall
be provided by the Company or incurred by the Executive during the time periods set forth in this Agreement. All reimbursements shall be paid as soon as administratively practicable, but in no event shall any reimbursement be paid after the last day
of the taxable year following the taxable year in which the expense was incurred. The amount of in-kind benefits provided or reimbursable expenses incurred in one taxable year shall not affect the in-kind benefits to be provided or the expenses eligible for reimbursement in any other taxable year. Such right to reimbursement or in-kind benefits is not subject to
liquidation or exchange for another benefit. 
 (d) To the extent that any payment or benefit described in this Agreement constitutes “non-qualified deferred compensation” under Section 409A of the Code, and to the extent that such payment or benefit is payable upon the Executive’s termination of employment, then such
payments or benefits shall be payable only upon the Executive’s “separation from service.” The determination of whether and when a separation from service has occurred shall be made in accordance with the presumptions set forth in
Treasury Regulation Section 1.409A-1(h). 
 (e) The Company makes no representation or
warranty and shall have no liability to the Executive or any other person if any provisions of this Agreement are determined to constitute deferred compensation subject to Section 409A of the Code but do not satisfy an exemption from, or
the conditions of, such Section. 

  
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 11. Withholding. All payments made by the Company to the Executive under
this Agreement shall be net of any tax or other amounts required to be withheld by the Company under applicable law. 
 12.
Notice and Date of Termination. 
 (a) Notice of Termination. During the Term, any termination of the
Executive’s employment (other than by reason of death) shall be communicated by written Notice of Termination from one party hereto to the other party hereto in accordance with this Section 12. For purposes of this Agreement, a
“Notice of Termination” shall mean a notice which shall indicate the specific termination provision in this Agreement relied upon. 

(b) Date of Termination. “Date of Termination” shall mean: (i) if the Executive’s employment is terminated by his
death, the date of the Executive’s death; (ii) if the Executive’s employment is terminated on account of Executive’s Disability, by the Company for Cause, or by the Company without Cause, the date on which Notice of
Termination is given; (iii) if the Executive’s employment is terminated by the Executive for any reason except for Good Reason, 30 days after the date on which a Notice of Termination is given, and (v) if the
Executive’s employment is terminated by the Executive for Good Reason, the date on which a Notice of Termination is given after the end of the Cure Period. Notwithstanding the foregoing, in the event that the Executive gives a Notice of
Termination to the Company, the Company may unilaterally accelerate the Date of Termination and such acceleration shall not result in a termination by the Company for purposes of this Agreement. 

13. Representations and Warranties. The Executive represents that he has not been debarred under Subsection
(a) or (b) of Section 306 of the United States Federal Food, Drug, and Cosmetic Act (21 U.S.C. 335a); and is not on any of the FDA clinical investigator enforcement lists (including the (i) Disqualified/Totally
Restricted List, (ii) Restricted List and (iii) Adequate Assurances List). 
 14. No
Mitigation. The Company agrees that, if the Executive’s employment by the Company is terminated during the term of this Agreement, the Executive is not required to seek other employment or to attempt in any way to reduce any amounts
payable to the Executive by the Company pursuant to Section 6 or Section 7 hereof. Further, the amount of any payment provided for in this Agreement shall not be reduced by any compensation earned by the Executive as the
result of employment by another employer. 
 15. Consent to Jurisdiction. The parties hereby consent to the
jurisdiction of the state and federal courts in the Commonwealth of Massachusetts. Accordingly, with respect to any such court action, the Executive (a) submits to the personal jurisdiction of such courts; (b) consents to
service of process; and (c) waives any other requirement (whether imposed by statute, rule of court, or otherwise) with respect to personal jurisdiction or service of process. 

16. Integration. This Agreement constitutes the entire agreement between the parties with respect to compensation,
severance pay, benefits and accelerated vesting and supersedes in all respects all prior agreements between the parties concerning such subject matter, including without limitation any offer letter, employment agreement or severance agreement
relating to the 

  
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Executive’s employment relationship with the Company and/or the ending of that employment relationship. Notwithstanding the foregoing, the Restrictive Covenants Agreements, the Equity
Documents, each as modified herein, and any other agreement relating to confidentiality, noncompetition, nonsolicitation or assignment of inventions shall not be superseded by this Agreement and the Executive acknowledges and agrees that any such
agreements remain in full force and effect. 
 17. Successor to the Executive. This Agreement shall inure to the
benefit of and be enforceable by the Executive’s personal representatives, executors, administrators, heirs, distributees, devisees and legatees. In the event of the Executive’s death after a Qualified Termination Event but prior to the
completion by the Company of all payments due to the Executive under this Agreement, the Company shall continue such payments to the Executive’s beneficiary designated in writing to the Company prior to his death (or to the Executive’s
estate, if the Executive fails to make such designation). 
 18. Enforceability. If any portion or provision of this
Agreement (including, without limitation, any portion or provision of any Section of this Agreement) shall to any extent be declared illegal or unenforceable by a court of competent jurisdiction, then the remainder of this Agreement, or the
application of such portion or provision in circumstances other than those as to which it is so declared illegal or unenforceable, shall not be affected thereby, and each portion and provision of this Agreement shall be valid and enforceable to the
fullest extent permitted by law. 
 19. Waiver. No waiver of any provision hereof shall be effective unless made in
writing and signed by the waiving party. The failure of any party to require the performance of any term or obligation of this Agreement, or the waiver by any party of any breach of this Agreement, shall not prevent any subsequent enforcement of
such term or obligation or be deemed a waiver of any subsequent breach. 
 20. Notices. Any notices, requests, demands
and other communications provided for by this Agreement shall be sufficient if in writing and delivered in person or sent by a nationally recognized overnight currier service of by registered or certified mail, postage prepaid, return receipt
requested, to the Executive at the last address the Executive has filed in writing with the Company, or to the Company at its main office, attention of the Board of Directors. 

21. Amendment. This Agreement may be amended or modified only by a written instrument signed by the Executive and by a
duly authorized representative of the Company. 
 22. Effect on Other Plans and Agreements. An election by the
Executive to resign for Good Reason under the provisions of this Agreement shall not be deemed a voluntary termination of employment by the Executive for the purpose of interpreting the provisions of any of the Company’s benefit plans, programs
or policies. Nothing in this Agreement shall be construed to limit the rights of the Executive under the Company’s benefit plans, programs or policies except as otherwise provided in Section 8 hereof, and except that the Executive
shall have no rights to any severance benefits under any Company severance pay plan, offer letter or otherwise. In the event that the Executive is party to an agreement with the Company providing for payments or benefits under such agreement and
this Agreement, the terms of this Agreement 

  
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shall govern and the Executive may receive payment under this Agreement only and not both. Further, Section 6 and Section 7 of this Agreement are mutually exclusive and in
no event shall the Executive be entitled to payments or benefits pursuant to Section 6 and Section 7 of this Agreement. 

23. Governing Law. This is a Massachusetts contract and shall be construed under and be governed in all respects by the
laws of the Commonwealth of Massachusetts, without giving effect to the conflict of laws principles. 
 24. Successor to
Company. The Company shall require any successor (whether direct or indirect, by purchase, merger, consolidation or otherwise) to all or substantially all of the business or assets of the Company expressly to assume and agree to perform this
Agreement to the same extent that the Company would be required to perform it if no succession had taken place. Failure of the Company to obtain an assumption of this Agreement at or prior to the effectiveness of any succession shall be a material
breach of this Agreement. 
 25. Gender Neutral. Wherever used herein, a pronoun in the masculine gender shall be
considered as including the feminine gender unless the context clearly indicates otherwise. 
 26. Counterparts. This
Agreement may be executed in any number of counterparts, each of which when so executed and delivered shall be taken to be an original; but such counterparts shall together constitute one and the same document.  
 [Signature Page Follows] 

  
 12 








 IN WITNESS WHEREOF, the parties have executed this Agreement effective on the Effective Date.

  

			
	SURFACE ONCOLOGY, INC.
		
	By:	 	 
	Name:	 	
	Title:	 	
	
	EXECUTIVE:
	
	 
	Scott Chappel, Ph.D.
	Chief Technology Officer


 [Signature Page to the Employment Agreement] 







 EXHIBIT A 

RESTRICTIVE COVENANTS AGREEMENT 







 SURFACE ONCOLOGY, INC. 

Employee Non-Competition, Non-Solicitation, Confidentiality and Assignment Agreement 

In consideration and as a condition of my employment or continued employment by Surface Oncology, Inc. (along with its subsidiaries and
affiliates, the “Company”), I agree as follows: 

 

 1. Proprietary Information. I agree that all information, whether or not in writing,
concerning the Company’s business, technology, business relationships or financial affairs which the Company has not released to the general public (collectively, “Proprietary Information”) is and will be the exclusive property of the
Company. By way of illustration, Proprietary Information may include information or material which has not been made generally available to the public, such as: (a) corporate information, including plans, strategies, methods, policies,
resolutions, negotiations or litigation; (b) marketing information, including strategies, methods, customer identities or other information about customers, prospect identities or other information about prospects, or market analyses or
projections; (c) financial information, including cost and performance data, debt arrangements, equity structure, investors and holdings, purchasing and sales data and price lists; and (d) operational and technological information,
including plans, specifications, manuals, forms, templates, software, designs, methods, procedures, formulas, discoveries, inventions, improvements, concepts and ideas; and (e) personnel information, including personnel lists, reporting or
organizational structure, resumes, personnel data, compensation structure, performance evaluations and termination arrangements or documents. Proprietary Information also includes information received in confidence by the Company from its customers
or suppliers or other third parties. 
 2. Recognition of Company’s Rights. I will not, at any time, without the
Company’s prior written permission, either during or after my employment, disclose any Proprietary Information to anyone outside of the Company, or use or permit to be used any Proprietary Information for any purpose other than the performance
of my duties as an employee of the Company. I will cooperate with the Company and use my best efforts to prevent the unauthorized disclosure of all Proprietary Information. I will deliver to the Company all copies of Proprietary Information in my
possession or control upon the earlier of a request by the Company or termination of my employment. 
 3. Rights of Others. I
understand that the Company is now and may hereafter be subject to non-disclosure or confidentiality agreements with third persons which require the Company to protect or refrain from use of proprietary information. I agree to be bound by the
terms of such agreements in the event I have access to such proprietary information. 
 4. Commitment to Company; Avoidance of Conflict of
Interest. While an employee of the Company, I will devote my full-time efforts to the Company’s business and I will not engage in any other business activity that conflicts with my duties to the Company. I will advise the
president of the Company or his or her nominee at such time as any activity of




 
either the Company or another business presents me with a conflict of interest or the appearance of a conflict of interest as an employee of the Company. I will take whatever action is requested
of me by the Company to resolve any conflict or appearance of conflict which it finds to exist. 
 5. Developments. I will make
full and prompt disclosure to the Company of all inventions, discoveries, designs, developments, methods, modifications, improvements, processes, algorithms, databases, computer programs, formulae, techniques, trade secrets, graphics or images, and
audio or visual works and other works of authorship (collectively “Developments”), whether or not patentable or copyrightable, that are created, made, conceived or reduced to practice by me (alone or jointly with others) or under my
direction during the period of my employment. I acknowledge that all work performed by me is on a “work for hire” basis, and I hereby do assign and transfer and, to the extent any such assignment cannot be made at present, will assign and
transfer, to the Company and its successors and assigns all my right, title and interest in all Developments that (a) relate to the business of the Company or any customer of or supplier to the Company or any of the products or services being
researched, developed, manufactured or sold by the Company or which may be used with such products or services; or (b) result from tasks assigned to me by the Company; or (c) result from the use of premises or personal property (whether tangible or
intangible) owned, leased or contracted for by the Company (“Company-Related Developments”), and all related patents, patent applications, trademarks and trademark applications, copyrights and copyright applications, and other intellectual
property rights in all countries and territories worldwide and under any international conventions (“Intellectual Property Rights”). 
 To
preclude any possible uncertainty, I have set forth on Exhibit A attached hereto a complete list of Developments that I have, alone or jointly with others, conceived, developed or reduced to practice prior to the commencement of my employment
with the Company that I consider to be my property or the property of third parties and that I wish to have excluded from the scope of this Agreement (“Prior Inventions”). If disclosure of any such Prior Invention would cause me to violate
any prior confidentiality agreement, I understand that I am not to list such Prior Inventions in Exhibit A but am only to disclose a cursory name for each such invention, a listing of the party(ies) to whom it belongs and the fact that full
disclosure as to such inventions has not been made for that reason. I have also listed on Exhibit A all patents and patent applications in which I am named as an inventor, other than those which have been assigned to the Company
(“Other Patent Rights”). If no such disclosure is attached, I represent that there are no Prior Inventions or Other Patent Rights. If, in the course of my employment with the Company, I incorporate a Prior Invention into a Company
product, process or machine or other work done for the 

 









 
Company, I hereby grant to the Company a nonexclusive, royalty-free, paid-up, irrevocable, worldwide license (with the full right to sublicense) to make, have made, modify, use, sell, offer for
sale and import such Prior Invention. Notwithstanding the foregoing, I will not incorporate, or permit to be incorporated, Prior Inventions in any Company-Related Development without the Company’s prior written consent. 

This Agreement does not obligate me to assign to the Company any Development which, in the sole judgment of the Company, reasonably exercised, is developed
entirely on my own time and does not relate to the business efforts or research and development efforts in which, during the period of my employment, the Company actually is engaged or reasonably would be engaged, and does not result from the use of
premises or equipment owned or leased by the Company. However, I will also promptly disclose to the Company any such Developments for the purpose of determining whether they qualify for such exclusion. I understand that to the extent this Agreement
is required to be construed in accordance with the laws of any state which precludes a requirement in an employee agreement to assign certain classes of inventions made by an employee, this paragraph 5 will be interpreted not to apply to any
invention which a court rules and/or the Company agrees falls within such classes. I also hereby waive all claims to any moral rights or other special rights which I may have or accrue in any Company-Related Developments. 

6. Documents and Other Materials. I will keep and maintain adequate and current records of all Proprietary Information and
Company-Related Developments developed by me during my employment, which records will be available to and remain the sole property of the Company at all times. 

All files, letters, notes, memoranda, reports, records, data, sketches, drawings, notebooks, layouts, charts, quotations and proposals, specification sheets,
program listings, blueprints, models, prototypes, or other written, photographic or other tangible material containing Proprietary Information, whether created by me or others, which come into my custody or possession, are the exclusive property of
the Company to be used by me only in the performance of my duties for the Company. Any property situated on the Company’s premises and owned by the Company, including without limitation computers, disks and other storage media, filing cabinets
or other work areas, is subject to inspection by the Company at any time with or without notice. In the event of the termination of my employment for any reason, I will deliver to the Company all files, letters, notes, memoranda, reports, records,
data, sketches, drawings, notebooks, layouts, charts, quotations and proposals, specification sheets, program listings, blueprints, models, prototypes, or other written, photographic or other tangible material containing Proprietary Information, and
other materials of any nature pertaining to the Proprietary Information of the Company and to my work, and will not take or keep in my possession any of the foregoing or any copies. 

7. Enforcement of Intellectual Property Rights. I will cooperate fully with the Company, both during and after my employment with
the Company, with respect to the




 
procurement, maintenance and enforcement of Intellectual Property Rights in Company-Related Developments. I will sign, both during and after the term of this Agreement, all papers, including
without limitation copyright applications, patent applications, declarations, oaths, assignments of priority rights, and powers of attorney, which the Company may deem necessary or desirable in order to protect its rights and interests in any
Company-Related Development. If the Company is unable, after reasonable effort, to secure my signature on any such papers, I hereby irrevocably designate and appoint each officer of the Company as my agent and attorney-in-fact to execute any such
papers on my behalf, and to take any and all actions as the Company may deem necessary or desirable in order to protect its rights and interests in any Company-Related Development. 

8. Non-Competition and Non-Solicitation. 

In order to protect the Company’s Proprietary Information and good will, during my employment and for a period of one (1) year following the termination
of my employment for any reason (the “Restricted Period”), I will not directly or indirectly, whether as owner, partner, shareholder, director, manager, consultant, agent, employee, co-venturer or otherwise, engage, participate or invest
in any business activity anywhere in the world that develops, manufactures or markets any products, or performs any services, that are directed to the same molecular targets as any products or services of the Company, or products or services that
the Company or its affiliates, has under development or that are the subject of active planning at any time during my employment; provided that this shall not prohibit any possible investment in publicly traded stock of a company representing less
than one percent of the stock of such company. 
 In addition, during the Restricted Period, I will not, directly or indirectly, in any manner, other than
for the benefit of the Company, (a) call upon, solicit, divert, take away, accept or conduct any business from or with any of the customers or prospective customers of the Company or any of its suppliers, and/or (b) solicit, entice, attempt to
persuade any other employee or consultant of the Company to leave the Company for any reason or otherwise participate in or facilitate the hire, directly or through another entity, of any person who is employed or engaged by the Company or who was
employed or engaged by the Company within six months of any attempt to hire such person. 
 I acknowledge and agree that if I violate any of the provisions
of this paragraph 8, the running of the Restricted Period will be extended by the time during which I engage in such violation(s). 
 9.
Government Contracts. I acknowledge that the Company may have from time to time agreements with other persons or with the United States Government or its agencies which impose obligations or restrictions on the Company
regarding inventions made during the course of work under such agreements or regarding the confidential nature of such work. I agree to comply with any such obligations or restrictions upon the direction of the Company. In addition to the rights
assigned under paragraph 5, I also assign to the 

 









 
Company (or any of its nominees) all rights which I have or acquired in any Developments, full title to which is required to be in the United States under any contract between the Company and the
United States or any of its agencies. 
 10. Prior Agreements. I hereby represent that, except as I have fully disclosed
previously in writing to the Company, I am not bound by the terms of any agreement with any previous employer or other party to refrain from using or disclosing any trade secret or confidential or proprietary information in the course of my
employment with the Company or to refrain from competing, directly or indirectly, with the business of such previous employer or any other party. I further represent that my performance of all the terms of this Agreement as an employee of the
Company does not and will not breach any agreement to keep in confidence proprietary information, knowledge or data acquired by me in confidence or in trust prior to my employment with the Company. I will not disclose to the Company or induce the
Company to use any confidential or proprietary information or material belonging to any previous employer or others. 
 11. Remedies Upon
Breach. I understand that the restrictions contained in this Agreement are necessary for the protection of the business and goodwill of the Company and I consider them to be reasonable for such purpose. Any breach of this Agreement is
likely to cause the Company substantial and irrevocable damage and therefore, in the event of such breach, the Company, in addition to such other remedies which may be available, will be entitled to specific performance and other injunctive
relief, without the posting of a bond. If I violated this Agreement, in addition to all other remedies available to the Company at law, in equity, and under contract, I agree that I am obligated to pay all the Company’s costs of enforcement of
this Agreement, including attorney’s fees and expenses. 
 12. Use of Voice, Image and Likeness. I give the Company
permission to use any and all of my voice, image and likeness, with or without using my name, in connection with the products and/or services of the Company, for the purposes of advertising and promoting such products and/or services and/or the
Company, and/or for other purposes deemed appropriate by the Company in its reasonable discretion, except to the extent expressly prohibited by law. 

13. No Employment Obligation. I understand that this Agreement does not create an obligation on the Company or any other
person to continue my employment. I acknowledge that my employment with the Company is at will and therefore may be terminated by the Company or me at any time and for any reason, with or without cause. 

14. Survival and Assignment by the Company. I understand that my obligations under this Agreement will continue in accordance with
its express terms regardless of any changes in my title, position, duties, salary, compensation or benefits or other terms and conditions of employment. I further understand that my obligations under this Agreement will continue following the
termination of my employment




 
regardless of the manner of such termination and will be binding upon my heirs, executors and administrators. The Company will have the right to assign this Agreement to its affiliates,
successors and assigns. I expressly consent to be bound by the provisions of this Agreement for the benefit of the Company or any parent, subsidiary or affiliate to whose employ I may be transferred without the necessity that this Agreement be
resigned at the time of such transfer. 
 15. Disclosure to Future Employers. I will provide a copy of this Agreement to any
prospective employer, partner or co-venturer prior to entering into an employment, partnership or other business relationship with such person or entity. 

16. Severability. In case any provisions (or portions thereof) contained in this Agreement shall, for any reason, be held invalid,
illegal or unenforceable in any respect, such invalidity, illegality or unenforceability shall not affect the other provisions of this Agreement, and this Agreement shall be construed as if such invalid, illegal or unenforceable provision had never
been contained herein. If, moreover, any one or more of the provisions contained in this Agreement shall for any reason be held to be excessively broad as to duration, geographical scope, activity or subject, it shall be construed by limiting and
reducing it, so as to be enforceable to the extent compatible with the applicable law as it shall then appear. 
 17. Protected
Disclosures. I understand that nothing contained in this Agreement limits my ability to communicate with any federal, state or local governmental agency or commission, including to provide documents or other information, without notice to
the Company. I also understand that nothing in this Agreement limits my ability to share compensation information concerning myself or others, except that this does not permit me to disclose compensation information concerning others that I obtain
because my job responsibilities require or allow access to such information. 
 18. Defend Trade Secrets Act of 2016. I
understand that pursuant to the federal Defend Trade Secrets Act of 2016, I shall not be held criminally or civilly liable under any federal or state trade secret law for the disclosure of a trade secret that (a) is made (i) in confidence to a
federal, state, or local government official, either directly or indirectly, or to an attorney; and (ii) solely for the purpose of reporting or investigating a suspected violation of law; or (b) is made in a complaint or other document filed in a
lawsuit or other proceeding, if such filing is made under seal. 
 19. Interpretation. This Agreement will be deemed to be made
and entered into in the Commonwealth of Massachusetts, and will in all respects be interpreted, enforced and governed under the laws of the Commonwealth of Massachusetts. I hereby agree to consent to personal jurisdiction of the state and federal
courts situated within Suffolk County, Massachusetts for purposes of enforcing this Agreement, and waive any objection that I might have to personal jurisdiction or venue in those courts.


 








 I UNDERSTAND THAT THIS AGREEMENT AFFECTS IMPORTANT RIGHTS. BY SIGNING BELOW, I CERTIFY THAT I
HAVE READ IT CAREFULLY AND AM SATISFIED THAT I UNDERSTAND IT COMPLETELY. 
 IN WITNESS WHEREOF, the undersigned has executed this
agreement as a sealed instrument as of the date set forth below. 
  

			
	Signed:	 	 
		 	(Employee’s full name)

 Type or print name: _____________________ 

Date: __________________ 







 EXHIBIT A 
  

	To:	Surface Oncology, Inc. 

 From: ____________________ 

Date: _____________________ 
 SUBJECT: Prior Inventions

 The following is a complete list of all inventions or improvements relevant to the subject matter of my employment by the Company that
have been made or conceived or first reduced to practice by me alone or jointly with others prior to my engagement by the Company: 
  

					
	         ☐
	  	No inventions or improvements	  	
			
	 ☐
	  	See below:	  	
			
		  	  
	  	
			
		  	  
	  	
			
		  	  
	  	
			
	 ☐
	  	Additional sheets attached	  	

 The following is a list of all patents and patent applications in which I have been named as an inventor: 

 

					
	         ☐
	  	None	  	
			
	 ☐
	  	See below: