Document:

EX-10.4

 Exhibit 10.4 

ADAGIO THERAPEUTICS, INC. 

INDEMNIFICATION AGREEMENT 
  

 
 This Indemnification Agreement (this
“Agreement”) is dated as of                , 20    , and is between Adagio Therapeutics, Inc., a Delaware corporation (the
“Company”), and (“Indemnitee”). 
 RECITALS 

A. Indemnitee’s service to the Company substantially benefits the Company. 

B. Individuals are reluctant to serve as directors or officers of corporations or in certain other capacities unless they are provided
with adequate protection through insurance or indemnification against the risks of claims and actions against them arising out of such service. 

C. Indemnitee does not regard the protection currently provided by applicable law, the Company’s governing documents and any
insurance as adequate under the present circumstances, and Indemnitee may not be willing to serve as a director or officer without additional protection. 

D. In order to induce Indemnitee to continue to provide services to the Company, it is reasonable, prudent and necessary for the Company
to contractually obligate itself to indemnify, and to advance expenses on behalf of, Indemnitee as permitted by applicable law. 
 E.
This Agreement is a supplement to and in furtherance of the indemnification provided in the Company’s certificate of incorporation and bylaws, and any resolutions adopted pursuant thereto, and this Agreement shall not be deemed a substitute
therefor, nor shall this Agreement be deemed to limit, diminish or abrogate any rights of Indemnitee thereunder. 
 The parties therefore
agree as follows: 
 1. Definitions. 

(a) A “Change in Control” shall be deemed to occur upon the earliest to occur after the date of this Agreement of any
of the following events: 
 (i) Acquisition of Stock by Third Party. Any Person (as defined below) is or becomes the Beneficial Owner
(as defined below), directly or indirectly, of securities of the Company representing fifty percent (50%) or more of the combined voting power of the Company’s then outstanding securities; 

(ii) Change in Board Composition. During any period of two consecutive years (not including any period prior to the execution of this
Agreement), individuals who at the beginning of such period constitute the Company’s board of directors, and any new directors (other than a director designated by a person who has entered into an agreement with the Company to effect a
transaction described in Sections 1(a)(i), 1(a)(iii) or 1(a)(iv)) whose election by the board of directors or nomination for election by the Company’s stockholders was approved by a vote of at least
two-thirds of the directors then still in office who either were directors at the beginning of the period or whose election or nomination for election was previously so approved, cease for any reason to
constitute at least a majority of the members of the Company’s board of directors; 

 (iii) Corporate Transactions. The effective date of a merger or consolidation of the
Company with any other entity, other than a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior to such merger or consolidation continuing to represent (either by remaining outstanding or
by being converted into voting securities of the surviving entity) more than 50% of the combined voting power of the voting securities of the surviving entity outstanding immediately after such merger or consolidation and with the power to elect at
least a majority of the board of directors or other governing body of such surviving entity; 
 (iv) Liquidation. The approval by the
stockholders of the Company of a complete liquidation of the Company or an agreement for the sale or disposition by the Company of all or substantially all of the Company’s assets; and 

(v) Other Events. Any other event of a nature that would be required to be reported in response to Item 6(e) of Schedule 14A of
Regulation 14A (or in response to any similar item on any similar schedule or form) promulgated under the Securities Exchange Act of 1934, as amended, whether or not the Company is then subject to such reporting requirement. 

For purposes of this Section 1(a), the following terms shall have the following meanings: 

(1) “Person” shall have the meaning as set forth in Sections 13(d) and 14(d) of the Securities Exchange Act of 1934,
as amended; provided, however, that “Person” shall exclude (i) the Company, (ii) any trustee or other fiduciary holding securities under an employee benefit plan of the Company, and (iii) any corporation
owned, directly or indirectly, by the stockholders of the Company in substantially the same proportions as their ownership of stock of the Company. 

(2) “Beneficial Owner” shall have the meaning given to such term in Rule 13d-3
under the Securities Exchange Act of 1934, as amended; provided, however, that “Beneficial Owner” shall exclude any Person otherwise becoming a Beneficial Owner by reason of (i) the stockholders of the Company
approving a merger of the Company with another entity or (ii) the Company’s board of directors approving a sale of securities by the Company to such Person. 

(b) “Corporate Status” describes the status of a person who is or was a director, trustee, general partner, managing
member, officer, employee, agent or fiduciary of the Company or any other Enterprise. 
 (c) “DGCL” means the General
Corporation Law of the State of Delaware. 
 (d) “Disinterested Director” means a director of the Company who is not
and was not a party to the Proceeding in respect of which indemnification is sought by Indemnitee. 

  
 2. 

 (e) “Enterprise” means the Company and any other corporation,
partnership, limited liability company, joint venture, trust, employee benefit plan or other enterprise of which Indemnitee is or was serving at the request of the Company as a director, trustee, general partner, managing member, officer, employee,
agent or fiduciary. 
 (f) “Expenses” include all reasonable attorneys’ fees, retainers, court costs, transcript
costs, fees and costs of experts, witness fees, travel expenses, duplicating costs, printing and binding costs, telephone charges, postage, delivery service fees, and all other disbursements or expenses of the types customarily incurred in
connection with prosecuting, defending, preparing to prosecute or defend, investigating, being or preparing to be a witness in, or otherwise participating in, a Proceeding. Expenses also include (i) Expenses incurred in connection with any
appeal resulting from any Proceeding, including without limitation the premium, security for, and other costs relating to any cost bond, supersedes bond or other appeal bond or their equivalent, and (ii) for purposes of Section 12(d),
Expenses incurred by Indemnitee in connection with the interpretation, enforcement or defense of Indemnitee’s rights under this Agreement or under any directors’ and officers’ liability insurance policies maintained by the Company.
Expenses, however, shall not include amounts paid in settlement by Indemnitee or the amount of judgments or fines against Indemnitee. 
 (g)
“Independent Counsel” means a law firm, or a partner or member of a law firm, that is experienced in matters of corporation law and neither presently is, nor in the past five years has been, retained to represent (i) the
Company or Indemnitee in any matter material to either such party (other than as Independent Counsel with respect to matters concerning Indemnitee under this Agreement, or other indemnitees under similar indemnification agreements), or (ii) any
other party to the Proceeding giving rise to a claim for indemnification hereunder. Notwithstanding the foregoing, the term “Independent Counsel” shall not include any person who, under the applicable standards of
professional conduct then prevailing, would have a conflict of interest in representing either the Company or Indemnitee in an action to determine Indemnitee’s rights under this Agreement. 

(h) “Proceeding” means any threatened, pending or completed action, suit, arbitration, mediation, alternate dispute
resolution mechanism, investigation, inquiry, administrative hearing or proceeding, whether brought in the right of the Company or otherwise and whether of a civil, criminal, administrative or investigative nature, including any appeal therefrom and
including without limitation any such Proceeding pending as of the date of this Agreement, in which Indemnitee was, is or will be involved as a party, a potential party, a nonparty witness or otherwise by reason of (i) the fact that Indemnitee
is or was a director or officer of the Company, (ii) any action taken by Indemnitee or any action or inaction on Indemnitee’s part while acting as a director or officer of the Company, or (iii) the fact that he or she is or was
serving at the request of the Company as a director, trustee, general partner, managing member, officer, employee, agent or fiduciary of the Company or any other Enterprise, in each case whether or not serving in such capacity at the time any
liability or Expense is incurred for which indemnification or advancement of expenses can be provided under this Agreement. 

  
 3. 

 (i) Reference to “other enterprises” shall include employee benefit
plans; references to “fines” shall include any excise taxes assessed on a person with respect to any employee benefit plan; references to “serving at the request of the Company” shall include any
service as a director, officer, employee or agent of the Company which imposes duties on, or involves services by, such director, officer, employee or agent with respect to an employee benefit plan, its participants or beneficiaries; and a person
who acted in good faith and in a manner he or she reasonably believed to be in the best interests of the participants and beneficiaries of an employee benefit plan shall be deemed to have acted in a manner “not opposed to the best
interests of the Company” as referred to in this Agreement. 
 2. Indemnity in Third-Party Proceedings. The
Company shall indemnify Indemnitee in accordance with the provisions of this Section 2 if Indemnitee is, or is threatened to be made, a party to or a participant in any Proceeding, other than a Proceeding by or in the right of the Company to
procure a judgment in its favor. Pursuant to this Section 2, Indemnitee shall be indemnified to the fullest extent permitted by applicable law against all Expenses, judgments, fines and amounts paid in settlement actually and reasonably
incurred by Indemnitee or on his or her behalf in connection with such Proceeding or any claim, issue or matter therein, if Indemnitee acted in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interests of
the Company and, with respect to any criminal action or proceeding, had no reasonable cause to believe that his or her conduct was unlawful. 

3. Indemnity in Proceedings by or in the Right of the Company. The Company shall indemnify Indemnitee in accordance with the
provisions of this Section 3 if Indemnitee is, or is threatened to be made, a party to or a participant in any Proceeding by or in the right of the Company to procure a judgment in its favor. Pursuant to this Section 3, Indemnitee shall be
indemnified to the fullest extent permitted by applicable law against all Expenses actually and reasonably incurred by Indemnitee or on Indemnitee’s behalf in connection with such Proceeding or any claim, issue or matter therein, if Indemnitee
acted in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interests of the Company. No indemnification for Expenses shall be made under this Section 3 in respect of any claim, issue or matter as to
which Indemnitee shall have been adjudged by a court of competent jurisdiction to be liable to the Company, unless and only to the extent that the Delaware Court of Chancery or any court in which the Proceeding was brought shall determine upon
application that, despite the adjudication of liability but in view of all the circumstances of the case, Indemnitee is fairly and reasonably entitled to indemnification for such expenses as the Delaware Court of Chancery or such other court shall
deem proper. 
 4. Indemnification for Expenses of a Party Who is Wholly or Partly Successful. To the extent that Indemnitee is
a party to or a participant in and is successful (on the merits or otherwise) in defense of any Proceeding or any claim, issue or matter therein, the Company shall indemnify Indemnitee against all Expenses actually and reasonably incurred by
Indemnitee or on Indemnitee’s behalf in connection therewith. To the extent permitted by applicable law, if Indemnitee is not wholly successful in such Proceeding but is successful, on the merits or otherwise, in defense of one or more but less
than all claims, issues or matters in such Proceeding, the Company shall indemnify Indemnitee against all Expenses actually and reasonably incurred by Indemnitee or on Indemnitee’s behalf in connection with (a) each successfully resolved
claim, issue or matter and (b) any claim, issue or matter related to any such successfully resolved claim, issue or matter. For purposes of this section, the termination of any claim, issue or matter in such a Proceeding by dismissal, with or
without prejudice, shall be deemed to be a successful result as to such claim, issue or matter. 

  
 4. 

 5. Indemnification for Expenses of a Witness. To the extent that Indemnitee
is, by reason of his or her Corporate Status, a witness in any Proceeding to which Indemnitee is not a party, Indemnitee shall be indemnified to the extent permitted by applicable law against all Expenses actually and reasonably incurred by
Indemnitee or on Indemnitee’s behalf in connection therewith. 
 6. Additional Indemnification. 

(a) Notwithstanding any limitation in Sections 2, 3 or 4, the Company shall indemnify Indemnitee to the fullest extent permitted by applicable
law if Indemnitee is, or is threatened to be made, a party to or a participant in any Proceeding (including a Proceeding by or in the right of the Company to procure a judgment in its favor) against all Expenses, judgments, fines and amounts paid in
settlement actually and reasonably incurred by Indemnitee or on his or her behalf in connection with the Proceeding or any claim, issue or matter therein. 

(b) For purposes of Section 6(a), the meaning of the phrase “to the fullest extent permitted by applicable law”
shall include, but not be limited to: 
 (i) the fullest extent permitted by the provision of the DGCL that authorizes or contemplates
additional indemnification by agreement, or the corresponding provision of any amendment to or replacement of the DGCL; and 
 (ii) the
fullest extent authorized or permitted by any amendments to or replacements of the DGCL adopted after the date of this Agreement that increase the extent to which a corporation may indemnify its officers and directors. 

7. Exclusions. Notwithstanding any provision in this Agreement, the Company shall not be obligated under this Agreement to make
any indemnity in connection with any Proceeding (or any part of any Proceeding): 
 (a) for which payment has actually been made to or on
behalf of Indemnitee under any statute, insurance policy, indemnity provision, vote or otherwise, except with respect to any excess beyond the amount paid; 

(b) for an accounting or disgorgement of profits pursuant to Section 16(b) of the Securities Exchange Act of 1934, as amended, or similar
provisions of federal, state or local statutory law or common law, if Indemnitee is held liable therefor (including pursuant to any settlement arrangements); 

(c) for any reimbursement of the Company by Indemnitee of any bonus or other incentive-based or equity-based compensation or of any profits
realized by Indemnitee from the sale of securities of the Company, as required in each case under the Securities Exchange Act of 1934, as amended (including any such reimbursements that arise from an accounting restatement of the Company pursuant to
Section 304 of the Sarbanes-Oxley Act of 2002 (the “Sarbanes-Oxley Act”), or the payment to the Company of profits arising from the purchase and sale by Indemnitee of securities in violation of Section 306 of the
Sarbanes-Oxley Act), if Indemnitee is held liable therefor (including pursuant to any settlement arrangements); 

  
 5. 

 (d) initiated by Indemnitee, including any Proceeding (or any part of any Proceeding)
initiated by Indemnitee against the Company or its directors, officers, employees, agents or other indemnitees, unless (i) the Company’s board of directors authorized the Proceeding (or the relevant part of the Proceeding) prior to its
initiation, (ii) the Company provides the indemnification, in its sole discretion, pursuant to the powers vested in the Company under applicable law, (iii) otherwise authorized in Section 12(d) or (iv) otherwise required by
applicable law; or 
 (e) if prohibited by applicable law. 

8. Advances of Expenses. The Company shall advance the Expenses incurred by Indemnitee in connection with any Proceeding, and
such advancement shall be made as soon as reasonably practicable, but in any event no later than 60 days, after the receipt by the Company of a written statement or statements requesting such advances from time to time (which shall include invoices
received by Indemnitee in connection with such Expenses but, in the case of invoices in connection with legal services, any references to legal work performed or to expenditure made that would cause Indemnitee to waive any privilege accorded by
applicable law shall not be included with the invoice). Advances shall be unsecured and interest free and made without regard to Indemnitee’s ability to repay such advances. Indemnitee hereby undertakes to repay any advance to the extent that
it is ultimately determined that Indemnitee is not entitled to be indemnified by the Company. This Section 8 shall not apply to the extent advancement is prohibited by law and shall not apply to any Proceeding for which indemnity is not
permitted under this Agreement, but shall apply to any Proceeding referenced in Section 7(b) or 7(c) prior to a determination that Indemnitee is not entitled to be indemnified by the Company. 

9. Procedures for Notification and Defense of Claim. 

(a) Indemnitee shall notify the Company in writing of any matter with respect to which Indemnitee intends to seek indemnification or
advancement of Expenses as soon as reasonably practicable following the receipt by Indemnitee of notice thereof. The written notification to the Company shall include, in reasonable detail, a description of the nature of the Proceeding and the facts
underlying the Proceeding. The failure by Indemnitee to notify the Company will not relieve the Company from any liability which it may have to Indemnitee hereunder or otherwise than under this Agreement, and any delay in so notifying the Company
shall not constitute a waiver by Indemnitee of any rights, except to the extent that such failure or delay materially prejudices the Company. 

(b) If, at the time of the receipt of a notice of a Proceeding pursuant to the terms hereof, the Company has directors’ and officers’
liability insurance in effect, the Company shall give prompt notice of the commencement of the Proceeding to the insurers in accordance with the procedures set forth in the applicable policies. The Company shall thereafter take all
commercially-reasonable action to cause such insurers to pay, on behalf of Indemnitee, all amounts payable as a result of such Proceeding in accordance with the terms of such policies. 

  
 6. 

 (c) In the event the Company may be obligated to make any indemnity in connection with a
Proceeding, the Company shall be entitled to assume the defense of such Proceeding with counsel approved by Indemnitee, which approval shall not be unreasonably withheld, upon the delivery to Indemnitee of written notice of its election to do so.
After delivery of such notice, approval of such counsel by Indemnitee and the retention of such counsel by the Company, the Company will not be liable to Indemnitee for any fees or expenses of counsel subsequently incurred by Indemnitee with respect
to the same Proceeding. Notwithstanding the Company’s assumption of the defense of any such Proceeding, the Company shall be obligated to pay the fees and expenses of Indemnitee’s counsel to the extent (i) the employment of counsel by
Indemnitee is authorized by the Company, (ii) counsel for the Company or Indemnitee shall have reasonably concluded that there is a conflict of interest between the Company and Indemnitee in the conduct of any such defense such that Indemnitee
needs to be separately represented, (iii) the fees and expenses are non-duplicative and reasonably incurred in connection with Indemnitee’s role in the Proceeding despite the Company’s
assumption of the defense, (iv) the Company is not financially or legally able to perform its indemnification obligations or (v) the Company shall not have retained, or shall not continue to retain, such counsel to defend such Proceeding.
The Company shall have the right to conduct such defense as it sees fit in its sole discretion. Regardless of any provision in this Agreement, Indemnitee shall have the right to employ counsel in any Proceeding at Indemnitee’s personal expense.
The Company shall not be entitled, without the consent of Indemnitee, to assume the defense of any claim brought by or in the right of the Company. 

(d) Indemnitee shall give the Company such information and cooperation in connection with the Proceeding as may be reasonably appropriate. 

(e) The Company shall not be liable to indemnify Indemnitee for any settlement of any Proceeding (or any part thereof) without the
Company’s prior written consent, which shall not be unreasonably withheld. 
 (f) The Company shall not settle any Proceeding (or any
part thereof) without Indemnitee’s prior written consent, which shall not be unreasonably withheld. 
 10. Procedures upon
Application for Indemnification. 
 (a) To obtain indemnification, Indemnitee shall submit to the Company a written request, including
therein or therewith such documentation and information as is reasonably available to Indemnitee and as is reasonably necessary to determine whether and to what extent Indemnitee is entitled to indemnification following the final disposition of the
Proceeding. The Company shall, as soon as reasonably practicable after receipt of such a request for indemnification, advise the board of directors that Indemnitee has requested indemnification. Any delay in providing the request will not relieve
the Company from its obligations under this Agreement, except to the extent such failure is prejudicial. 
 (b) Upon written request by
Indemnitee for indemnification pursuant to Section 10(a), a determination, if required by applicable law, with respect to Indemnitee’s entitlement thereto shall be made in the specific case (i) if a Change in Control shall have
occurred, by Independent Counsel in a written opinion to the Company’s board of directors, a copy of which shall be delivered to Indemnitee or (ii) if a Change in Control shall not have occurred, (A) by a majority vote of the
Disinterested Directors, even though less than a quorum of the Company’s board of directors, (B) by a committee of Disinterested Directors designated by a majority vote of the Disinterested Directors, even though less than a quorum of the
Company’s board of directors, (C) if there are no such Disinterested Directors or, if such Disinterested Directors so direct, by 

  
 7. 

 
Independent Counsel in a written opinion to the Company’s board of directors, a copy of which shall be delivered to Indemnitee or (D) if so directed by the Company’s board of
directors, by the stockholders of the Company. If it is so determined that Indemnitee is entitled to indemnification, payment to Indemnitee shall be made within ten days after such determination. Indemnitee shall cooperate with the person, persons
or entity making the determination with respect to Indemnitee’s entitlement to indemnification, including providing to such person, persons or entity upon reasonable advance request any documentation or information that is not privileged or
otherwise protected from disclosure and that is reasonably available to Indemnitee and reasonably necessary to such determination. Any costs or expenses (including attorneys’ fees and disbursements) reasonably incurred by Indemnitee in so
cooperating with the person, persons or entity making such determination shall be borne by the Company, to the extent permitted by applicable law. 

(c) In the event the determination of entitlement to indemnification is to be made by Independent Counsel pursuant to Section 10(b), the
Independent Counsel shall be selected as provided in this Section 10(c). If a Change in Control shall not have occurred, the Independent Counsel shall be selected by the Company’s board of directors, and the Company shall give written
notice to Indemnitee advising him or her of the identity of the Independent Counsel so selected. If a Change in Control shall have occurred, the Independent Counsel shall be selected by Indemnitee (unless Indemnitee shall request that such selection
be made by the Company’s board of directors, in which event the preceding sentence shall apply), and Indemnitee shall give written notice to the Company advising it of the identity of the Independent Counsel so selected. In either event,
Indemnitee or the Company, as the case may be, may, within ten days after such written notice of selection shall have been given, deliver to the Company or to Indemnitee, as the case may be, a written objection to such selection; provided,
however, that such objection may be asserted only on the ground that the Independent Counsel so selected does not meet the requirements of “Independent Counsel” as defined in Section 1 of this Agreement, and the objection shall
set forth with particularity the factual basis of such assertion. Absent a proper and timely objection, the person so selected shall act as Independent Counsel. If such written objection is so made and substantiated, the Independent Counsel so
selected may not serve as Independent Counsel unless and until such objection is withdrawn or a court has determined that such objection is without merit. If, within 20 days after the later of (i) submission by Indemnitee of a written request
for indemnification pursuant to Section 10(a) hereof and (ii) the final disposition of the Proceeding, the parties have not agreed upon an Independent Counsel, either the Company or Indemnitee may petition a court of competent jurisdiction
for resolution of any objection which shall have been made by the Company or Indemnitee to the other’s selection of Independent Counsel and for the appointment as Independent Counsel of a person selected by the court or by such other person as
the court shall designate, and the person with respect to whom all objections are so resolved or the person so appointed shall act as Independent Counsel under Section 10(b) hereof. Upon the due commencement of any judicial proceeding pursuant
to Section 12(a) of this Agreement, the Independent Counsel shall be discharged and relieved of any further responsibility in such capacity (subject to the applicable standards of professional conduct then prevailing). 

(d) The Company agrees to pay the reasonable fees and expenses of any Independent Counsel and to fully indemnify such counsel against any and
all Expenses, claims, liabilities and damages arising out of or relating to this Agreement or its engagement pursuant hereto. 

  
 8. 

 11. Presumptions and Effect of Certain Proceedings. 

(a) In making a determination with respect to entitlement to indemnification hereunder, the person, persons or entity making such determination
shall, to the fullest extent not prohibited by law, presume that Indemnitee is entitled to indemnification under this Agreement if Indemnitee has submitted a request for indemnification in accordance with Section 10(a) of this Agreement, and
the Company shall, to the fullest extent not prohibited by law, have the burden of proof to overcome that presumption in connection with the making by such person, persons or entity of any determination contrary to that presumption. 

(b) The termination of any Proceeding or of any claim, issue or matter therein, by judgment, order, settlement or conviction, or upon a plea of
nolo contendere or its equivalent, shall not (except as otherwise expressly provided in this Agreement) of itself adversely affect the right of Indemnitee to indemnification or create a presumption that Indemnitee did not act in good faith
and in a manner which he or she reasonably believed to be in or not opposed to the best interests of the Company or, with respect to any criminal Proceeding, that Indemnitee had reasonable cause to believe that his or her conduct was unlawful. 

(c) For purposes of any determination of good faith, Indemnitee shall be deemed to have acted in good faith to the extent Indemnitee relied in
good faith on (i) the records or books of account of the Enterprise, including financial statements, (ii) information supplied to Indemnitee by the officers of the Enterprise in the course of their duties, (iii) the advice of legal
counsel for the Enterprise or its board of directors or counsel selected by any committee of the board of directors or (iv) information or records given or reports made to the Enterprise by an independent certified public accountant, an
appraiser, investment banker or other expert selected with reasonable care by the Enterprise or its board of directors or any committee of the board of directors. The provisions of this Section 11(c) shall not be deemed to be exclusive or to
limit in any way the other circumstances in which Indemnitee may be deemed to have met the applicable standard of conduct set forth in this Agreement. 

(d) Neither the knowledge, actions nor failure to act of any other director, officer, agent or employee of the Enterprise shall be imputed to
Indemnitee for purposes of determining the right to indemnification under this Agreement. 
 12. Remedies of Indemnitee. 

(a) Subject to Section 12(e), in the event that (i) a determination is made pursuant to Section 10 of this Agreement that
Indemnitee is not entitled to indemnification under this Agreement, (ii) advancement of Expenses is not timely made pursuant to Section 8 or 12(d) of this Agreement, (iii) no determination of entitlement to indemnification shall have
been made pursuant to Section 10 of this Agreement within 90 days after the later of the receipt by the Company of the request for indemnification or the final disposition of the Proceeding, (iv) payment of indemnification pursuant to this
Agreement is not made (A) within ten days after a determination has been made that Indemnitee is entitled to indemnification or (B) with respect to indemnification pursuant to Sections 4, 5 and 12(d) of this Agreement, within 30 days after
receipt by the Company of a written request therefor, or (v) the Company or any other person or entity takes or threatens to take any action to declare this Agreement void or unenforceable, or institutes any litigation or other action or
proceeding designed to deny, or to recover from, Indemnitee the benefits provided or intended to be provided to Indemnitee hereunder, Indemnitee shall be entitled to an adjudication by a court of competent jurisdiction of his or her entitlement to
such indemnification or advancement of Expenses. The Company shall not oppose Indemnitee’s right to seek any such adjudication in accordance with this Agreement. 

  
 9. 

 (b) Neither (i) the failure of the Company, its board of directors, any committee or
subgroup of the board of directors, Independent Counsel or stockholders to have made a determination that indemnification of Indemnitee is proper in the circumstances because Indemnitee has met the applicable standard of conduct, nor (ii) an
actual determination by the Company, its board of directors, any committee or subgroup of the board of directors, Independent Counsel or stockholders that Indemnitee has not met the applicable standard of conduct, shall be a defense to the action or
create a presumption that Indemnitee has or has not met the applicable standard of conduct. In the event that a determination shall have been made pursuant to Section 10 of this Agreement that Indemnitee is not entitled to indemnification, any
judicial proceeding commenced pursuant to this Section 12 shall be conducted in all respects as a de novo trial, on the merits, and Indemnitee shall not be prejudiced by reason of that adverse determination. In any judicial proceeding
commenced pursuant to this Section 12, the Company shall, to the fullest extent not prohibited by law, have the burden of proving Indemnitee is not entitled to indemnification or advancement of Expenses, as the case may be. 

(c) To the fullest extent not prohibited by law, the Company shall be precluded from asserting in any judicial proceeding commenced pursuant to
this Section 12 that the procedures and presumptions of this Agreement are not valid, binding and enforceable and shall stipulate in any such court that the Company is bound by all the provisions of this Agreement. If a determination shall have
been made pursuant to Section 10 of this Agreement that Indemnitee is entitled to indemnification, the Company shall be bound by such determination in any judicial proceeding commenced pursuant to this Section 12, absent (i) a
misstatement by Indemnitee of a material fact, or an omission of a material fact necessary to make Indemnitee’s statements not materially misleading, in connection with the request for indemnification, or (ii) a prohibition of such
indemnification under applicable law. 
 (d) To the extent not prohibited by law, the Company shall indemnify Indemnitee against all Expenses
that are incurred by Indemnitee in connection with any action for indemnification or advancement of Expenses from the Company under this Agreement or under any directors’ and officers’ liability insurance policies maintained by the Company
to the extent Indemnitee is successful in such action, and, if requested by Indemnitee, shall (as soon as reasonably practicable, but in any event no later than 60 days, after receipt by the Company of a written request therefor) advance such
Expenses to Indemnitee, subject to the provisions of Section 8. 
 (e) Notwithstanding anything in this Agreement to the contrary, no
determination as to entitlement to indemnification shall be required to be made prior to the final disposition of the Proceeding. 

13. Contribution. To the fullest extent permissible under applicable law, if the indemnification provided for in this Agreement
is unavailable to Indemnitee, the Company, in lieu of indemnifying Indemnitee, shall contribute to the amounts incurred by Indemnitee, whether for Expenses, judgments, fines or amounts paid or to be paid in settlement, in connection with any claim
relating to an indemnifiable event under this Agreement, in such proportion as is deemed fair and reasonable in light of all of the circumstances of such Proceeding in order to reflect (i) the relative benefits received by the Company and
Indemnitee as a result of the events and transactions giving rise to such Proceeding; and (ii) the relative fault of Indemnitee and the Company (and its other directors, officers, employees and agents) in connection with such events and
transactions. 

  
 10. 

 14. Non-exclusivity. The rights of
indemnification and to receive advancement of Expenses as provided by this Agreement shall not be deemed exclusive of any other rights to which Indemnitee may at any time be entitled under applicable law, the Company’s certificate of
incorporation or bylaws, any agreement, a vote of stockholders or a resolution of directors, or otherwise. To the extent that a change in Delaware law, whether by statute or judicial decision, permits greater indemnification or advancement of
Expenses than would be afforded currently under the Company’s certificate of incorporation and bylaws and this Agreement, it is the intent of the parties hereto that Indemnitee shall enjoy by this Agreement the greater benefits so afforded by
such change, subject to the restrictions expressly set forth herein or therein. Except as expressly set forth herein, no right or remedy herein conferred is intended to be exclusive of any other right or remedy, and every other right and remedy
shall be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. Except as expressly set forth herein, the assertion or employment of any right or remedy hereunder, or
otherwise, shall not prevent the concurrent assertion or employment of any other right or remedy. 
 15. Primary Responsibility.
The Company acknowledges that to the extent Indemnitee is serving as a director on the Company’s board of directors at the request or direction of a venture capital fund or other entity and/or certain of its affiliates (collectively, the
“Secondary Indemnitors”), Indemnitee may have certain rights to indemnification and advancement of expenses provided by such Secondary Indemnitors. The Company agrees that, as between the Company and the Secondary Indemnitors, the Company
is primarily responsible for amounts required to be indemnified or advanced under the Company’s certificate of incorporation or bylaws or this Agreement and any obligation of the Secondary Indemnitors to provide indemnification or advancement
for the same amounts is secondary to those Company obligations. To the extent not in contravention of any insurance policy or policies providing liability or other insurance for the Company or any director, trustee, general partner, managing member,
officer, employee, agent or fiduciary of the Company or any other Enterprise, the Company waives any right of contribution or subrogation against the Secondary Indemnitors with respect to the liabilities for which the Company is primarily
responsible under this Section 15. In the event of any payment by the Secondary Indemnitors of amounts otherwise required to be indemnified or advanced by the Company under the Company’s certificate of incorporation or bylaws or this
Agreement, the Secondary Indemnitors shall be subrogated to the extent of such payment to all of the rights of recovery of Indemnitee for indemnification or advancement of expenses under the Company’s certificate of incorporation or bylaws or
this Agreement or, to the extent such subrogation is unavailable and contribution is found to be the applicable remedy, shall have a right of contribution with respect to the amounts paid. The Secondary Indemnitors are express third-party
beneficiaries of the terms of this Section 15. 
 16. No Duplication of Payments. The Company shall not be liable under
this Agreement to make any payment of amounts otherwise indemnifiable hereunder (or for which advancement is provided hereunder) if and to the extent that Indemnitee has otherwise actually received payment for such amounts under any insurance
policy, contract, agreement or otherwise. 

  
 11. 

 17. Insurance. To the extent that the Company maintains an insurance policy or
policies providing liability insurance for directors, trustees, general partners, managing members, officers, employees, agents or fiduciaries of the Company or any other Enterprise, Indemnitee shall be covered by such policy or policies to the same
extent as the most favorably-insured persons under such policy or policies in a comparable position. 
 18. Subrogation. In the
event of any payment under this Agreement, the Company shall be subrogated to the extent of such payment to all of the rights of recovery of Indemnitee, who shall execute all papers required and take all action necessary to secure such rights,
including execution of such documents as are necessary to enable the Company to bring suit to enforce such rights. 
 19. Services
to the Company. Indemnitee agrees to serve as a director or officer of the Company or, at the request of the Company, as a director, trustee, general partner, managing member, officer, employee, agent or fiduciary of another Enterprise, for so
long as Indemnitee is duly elected or appointed or until Indemnitee tenders his or her resignation or is removed from such position. Indemnitee may at any time and for any reason resign from such position (subject to any other contractual obligation
or any obligation imposed by operation of law), in which event the Company shall have no obligation under this Agreement to continue Indemnitee in such position. This Agreement shall not be deemed an employment contract between the Company (or any
of its subsidiaries or any Enterprise) and Indemnitee. Indemnitee specifically acknowledges that any employment with the Company (or any of its subsidiaries or any Enterprise) is at will, and Indemnitee may be discharged at any time for any reason,
with or without cause, with or without notice, except as may be otherwise expressly provided in any executed, written employment contract between Indemnitee and the Company (or any of its subsidiaries or any Enterprise), any existing formal
severance policies adopted by the Company’s board of directors or, with respect to service as a director or officer of the Company, the Company’s certificate of incorporation or bylaws or the DGCL. No such document shall be subject to any
oral modification thereof. 
 20. Duration. This Agreement shall continue until and terminate upon the later of (a) ten
years after the date that Indemnitee shall have ceased to serve as a director or officer of the Company or as a director, trustee, general partner, managing member, officer, employee, agent or fiduciary of any other Enterprise, as applicable; or
(b) one year after the final termination of any Proceeding, including any appeal, then pending in respect of which Indemnitee is granted rights of indemnification or advancement of Expenses hereunder and of any proceeding commenced by
Indemnitee pursuant to Section 12 of this Agreement relating thereto. 
 21. Successors. This Agreement shall be binding
upon the Company and its successors and assigns, including any direct or indirect successor by purchase, merger, consolidation or otherwise to all or substantially all of the business or assets of the Company, and shall inure to the benefit of
Indemnitee and Indemnitee’s heirs, executors and administrators. 
 22. Severability. Nothing in this Agreement is
intended to require or shall be construed as requiring the Company to do or fail to do any act in violation of applicable law. The Company’s inability, pursuant to court order or other applicable law, to perform its obligations under this
Agreement shall not constitute a breach of this Agreement. If any provision or provisions of this Agreement shall be held to be invalid, illegal or unenforceable for any reason whatsoever: (i) the validity, legality and enforceability of the
remaining provisions of this Agreement (including 

  
 12. 

 
without limitation, each portion of any section of this Agreement containing any such provision held to be invalid, illegal or unenforceable, that is not itself invalid, illegal or unenforceable)
shall not in any way be affected or impaired thereby and shall remain enforceable to the fullest extent permitted by law; (ii) such provision or provisions shall be deemed reformed to the extent necessary to conform to applicable law and to
give the maximum effect to the intent of the parties hereto; and (iii) to the fullest extent possible, the provisions of this Agreement (including, without limitation, each portion of any section of this Agreement containing any such provision
held to be invalid, illegal or unenforceable, that is not itself invalid, illegal or unenforceable) shall be construed so as to give effect to the intent manifested thereby. 

23. Enforcement. The Company expressly confirms and agrees that it has entered into this Agreement and assumed the obligations
imposed on it hereby in order to induce Indemnitee to serve as a director or officer of the Company, and the Company acknowledges that Indemnitee is relying upon this Agreement in serving as a director or officer of the Company. 

24. Entire Agreement. This Agreement constitutes the entire agreement between the parties hereto with respect to the subject
matter hereof and supersedes all prior agreements and understandings, oral, written and implied, between the parties hereto with respect to the subject matter hereof; provided, however, that this Agreement is a supplement to and in
furtherance of the Company’s certificate of incorporation and bylaws and applicable law. 
 25. Modification and Waiver.
No supplement, modification or amendment to this Agreement shall be binding unless executed in writing by the parties hereto. No amendment, alteration or repeal of this Agreement shall adversely affect any right of Indemnitee under this
Agreement in respect of any action taken or omitted by such Indemnitee in his or her Corporate Status prior to such amendment, alteration or repeal. No waiver of any of the provisions of this Agreement shall constitute or be deemed a waiver of any
other provision of this Agreement nor shall any waiver constitute a continuing waiver. 
 26. Notices. All notices and other
communications required or permitted hereunder shall be in writing and shall be mailed by registered or certified mail, postage prepaid, sent by facsimile or electronic mail or otherwise delivered by hand, messenger or courier service addressed:

 (a) if to Indemnitee, to Indemnitee’s address, facsimile number or electronic mail address set forth below Indemnitee signature
hereto; or 
 (b) if to the Company, to the attention of the President and Chief Executive Officer of the Company at Adagio Therapeutics,
Inc., 303 Wyman Street, Suite 300, Waltham, MA 02451, or at such other current address as the Company shall have furnished to Indemnitee, with a copy (which shall not constitute notice) to Div Gupta, Cooley LLP, 55 Hudson Yards, New York, NY 10001.

 Each such notice or other communication shall for all purposes of this Agreement be treated as effective or having been given (i) if
delivered by hand, messenger or courier service, when delivered (or if sent via a nationally-recognized overnight courier service, freight prepaid, specifying next-business-day delivery, one business
day after deposit with the courier), or (ii) if sent via mail, at the earlier of its receipt or five days after the same has been deposited in a 

  
 13. 

 
regularly-maintained receptacle for the deposit of the United States mail, addressed and mailed as aforesaid , or (iii) if sent via facsimile, upon confirmation of facsimile transfer
or, if sent via electronic mail, upon confirmation of delivery when directed to the relevant electronic mail address, if sent during normal business hours of the recipient, or if not sent during normal business hours of the recipient, then on
the recipient’s next business day. 
 27. Applicable Law and Consent to Jurisdiction. This Agreement and the legal
relations among the parties shall be governed by, and construed and enforced in accordance with, the laws of the State of Delaware, without regard to its conflict of laws rules. Except with respect to any arbitration commenced by Indemnitee pursuant
to Section 12(a) of this Agreement, the Company and Indemnitee hereby irrevocably and unconditionally (i) agree that any action or proceeding arising out of or in connection with this Agreement shall be brought only in the Delaware Court
of Chancery, and not in any other state or federal court in the United States of America or any court in any other country, (ii) consent to submit to the exclusive jurisdiction of the Delaware Court of Chancery for purposes of any action or
proceeding arising out of or in connection with this Agreement, (iii) appoint, to the extent such party is not otherwise subject to service of process in the State of Delaware, Capitol Services, Inc., Dover, Delaware as its agent in the State
of Delaware as such party’s agent for acceptance of legal process in connection with any such action or proceeding against such party with the same legal force and validity as if served upon such party personally within the State of Delaware,
(iv) waive any objection to the laying of venue of any such action or proceeding in the Delaware Court of Chancery, and (v) waive, and agree not to plead or to make, any claim that any such action or proceeding brought in the Delaware
Court of Chancery has been brought in an improper or inconvenient forum. 
 28. Counterparts. This Agreement may be executed in
one or more counterparts, each of which shall for all purposes be deemed to be an original but all of which together shall constitute one and the same Agreement. This Agreement may also be executed and delivered by facsimile signature and in
counterparts, each of which shall for all purposes be deemed to be an original but all of which together shall constitute one and the same Agreement. Only one such counterpart signed by the party against whom enforceability is sought needs to be
produced to evidence the existence of this Agreement. 
 29. Captions. The headings of the paragraphs of this Agreement are
inserted for convenience only and shall not be deemed to constitute part of this Agreement or to affect the construction thereof. 

(signature page follows) 

  
 14. 

 The parties are signing this Indemnification Agreement as of the date stated in the
introductory sentence. 
  

	
	ADAGIO THERAPEUTICS, INC.
	
	  

	(Signature)
	
	  

	(Print name)
	
	  

	(Title)
	
	[INSERT INDEMNITEE NAME]
	
	  

	(Signature)
	
	  

	(Print name)
	
	  

	(Street address)
	
	  

	(City, State and ZIP)

 (Signature page to Indemnification Agreement)EX-10.9

 Exhibit 10.9 

EMPLOYMENT AGREEMENT 

This Employment Agreement (“Agreement”) is made between Adagio Therapeutics, Inc., a Delaware corporation (the
“Company”), and Tillman Gerngross (the “Executive”), this [___] day of [_______] 2021. This Agreement supersedes in its entirety that certain Consulting Agreement, dated June 19,
2020 (the “Prior Agreement”), between the Executive and the Company. 
 WHEREAS, the Company is planning an
initial public offering (the “Offering”) of its shares of common stock; 
 WHEREAS, the Company and the
Executive desire to enter into this Agreement and supersede in its entirety the Prior Agreement in order to change the Executive’s terms and conditions of employment in connection with the Offering, effective as of the date on which the
registration statement relating to the Offering is effective (the “Effective Date”). 
 NOW, THEREFORE,
in consideration of the mutual covenants and agreements herein contained and other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the parties agree as follows: 

1. Employment. 
 (a)
Term. The Company shall employ the Executive and the Executive shall be employed by the Company pursuant to this Agreement commencing as of the Effective Date and continuing until such employment is terminated in accordance with the
provisions hereof (the “Term”). The Executive’s employment with the Company shall 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. 
 (b) Position and Duties. 

The Executive will serve as Chief Executive Officer and President (“CEO”) of the Company, reporting exclusively to the Company’s
Board of Directors (the “Board”). Executive will render such business and professional services in the performance of his duties as are consistent with Executive’s position within the Company. As CEO, Executive will have
the status of the highest ranking executive officer of the Company, with the full powers, responsibilities and authorities customary for the chief executive officer of publicly traded corporations of the size, type and nature of the Company,
together with such other powers, authorities and responsibilities as may reasonably be assigned to him by the Board. 
 Nothing in this Agreement shall
prohibit the Executive from reasonably delegating parts of the responsibilities set forth in or contemplated by this Section 1(b) to other employees of the Company or its subsidiaries. 

 (c) Outside Activities. Executive will use good faith efforts to discharge
Executive’s obligations under this Agreement to the best of Executive’s ability. Executive agrees not to (i) engage in any other employment or (ii) consult for, found, or serve on the board of directors of any other entity in the
field of infectious disease. Notwithstanding the foregoing, Executive may (x) with prior disclosure to the Nominating and Governance Committee of the Board, consult for, found, or serve on the board of directors of any Adimab, LLC affiliate,
and, (y) without such prior disclosure, serve in any capacity with any civic, educational, or charitable organization, participate in industry affairs and manage Executive’s family’s personal passive investments, and continue to
engage in the activities set forth in Appendix A to this Agreement (romanettes (x) and (y) collectively, the “Approved Outside Activities”), provided that such services do not materially interfere with
Executive’s obligations to the Company, create a conflict of interest (it being understood and agreed that the conduct of business of Adimab, LLC, in a manner similar to that in which it is currently being conducted, including the discovery,
optimization and licensing of antibodies for treatment of infectious disease to third parties, shall not constitute a conflict of interest hereunder), violate any of the Executive’s Continuing Obligations (as defined in Section 9 below) or
cause any reputational damage to the Company as reasonably determined by the Board. 
 The Executive may retain any compensation or benefits received as a
result of consented to service as a director without any offset in respect of any compensation or benefits to be provided hereunder. 
 2.
Compensation and Related Matters. This Section 2 sets forth the compensation and benefits to be provided to the Executive during the Term. 

(a) Base Salary. The Executive will continue to pay Executive, as compensation for the performance of the Executive’s duties and
obligations hereunder, salary at the rate of $550,000 per year. The Executive’s salary shall be subject to annual review not later than March 31st of each year for possible increase by the
Board or the Compensation Committee of the Board (the “Compensation Committee”), which may be adjusted from time to time. The base salary in effect at any given time is referred to herein as “Base
Salary.” The Base Salary shall be payable in a manner that is consistent with the Company’s usual payroll practices for its executive officers 

(b) Incentive Compensation. The Executive shall participate in an annual cash incentive compensation plan (the “Annual
Bonus Plan”). The Executive will be eligible to earn an annual bonus for each full calendar year completed (the “Annual Bonus”). The Executive’s target Annual Bonus will be fifty percent (50%) of
Executive’s Base Salary (the “Target Bonus”) based on Base Salary in effect on January 1st of the applicable performance period. The actual Annual Bonus payable to the Executive with respect to a performance
period will be determined by the Compensation Committee based on achieving performance goals and objectives for such calendar year as reasonably determined by the Compensation Committee. The Executive’s Annual Bonus shall be paid as soon as
administratively practicable after the end of the performance period, but in no event later than the March 15th immediately following such period; provided, that the Executive must remain
continuously employed by the Company through the date on which the Board approves the actual Annual Bonus amount payable to the Executive to be eligible to receive bonus (except as otherwise provided in Section 4(c) or 5(a)). 

  
 2 

 (c) Expenses. The Company shall promptly pay or reimburse the Executive for all
reasonable expenses incurred by the Executive while performing services hereunder, including but not limited to travel expenses and attendance at industry events, in accordance with the policies and procedures then in effect and established by the
Company for its executive officers, but in no event later than thirty (30) days submission of a reimbursement request in accordance with such policies or procedures. 

(d) Other Benefits. The Executive shall be eligible to participate in or receive benefits under the Company’s employee benefit
plans in effect from time to time, subject to the terms of such plans. 
 (e) Paid Time Off. The Executive shall be entitled to take
paid time off in accordance with the Company’s applicable paid time off policy for executives, as may be in effect from time to time. 

(f) Stock Ownership Guidelines. The Executive shall be subject to the Company’s Executive Stock Ownership Guidelines while
providing services under this Agreement. 
 (g) Treatment of Equity Awards upon a Change in Control. The following provisions shall
apply to any award granted under the Adagio Therapeutics, Inc. 2021 Equity Incentive Plan (the “Plan”) or any other plan, agreement or arrangement based on the value of a share of the Company’s common stock on or
after the Effective Date (collectively, the “Equity Awards”) to the extent the Equity Awards are assumed, continued or substituted by the surviving or acquiring entity (or its parent) in connection with a Change in
Control (as defined in the Plan) and the Executive continues to provide services to the Company or its successor following such Change in Control: 

(i) Except as otherwise provided in the Change in Control transaction’s definitive agreement, the Plan or the applicable
award agreement, or as set forth in Section 6 below, Equity Awards subject to vesting solely on account of completing periods of covered employment or service (collectively, the “Time-Based Equity Awards”) shall
not immediately accelerate and become fully vested and exercisable or non-forfeitable on such a Change in Control, and 

(ii) all other Equity Awards, including but not limited to performance stock units vesting based on achieving pre-established performance goals (collectively, the “Performance-Based Equity Awards”) shall be governed by the terms of the Plan and the applicable award agreement. 

3. Termination. The Executive’s employment hereunder may be terminated without any breach of this Agreement under the following
circumstances: 
 (a) Death. The Executive’s employment hereunder shall terminate upon death. 

  
 3 

 (b) Disability. The Company may terminate the Executive’s employment if the
Executive is disabled and unable to perform or expected to be unable to perform the essential functions of the Executive’s then existing position or positions under this Agreement with or without reasonable accommodation for a period of 180
days (which need not be consecutive) in any 12-month period. If any question shall arise as to whether during any period the Executive is disabled so as to be unable to perform the essential functions of the
Executive’s then existing position or positions with or without reasonable accommodation, the Executive may, and at the request of the Company shall, submit to the Company a certification in reasonable detail by a physician selected by the
Company to whom the Executive or the Executive’s guardian has no reasonable objection as to whether the Executive is so disabled or how long such disability is expected to continue, and such certification shall for the purposes of this
Agreement be conclusive of the issue. The Executive shall cooperate with any reasonable request of the physician in connection with such certification. If such question shall arise and the Executive shall fail to submit such certification, the
Company’s determination of such issue shall be binding on the Executive. Nothing in this Section 3(b) shall be construed to waive the Executive’s rights, if any, under existing law including, without limitation, the Family and Medical
Leave Act of 1993, 29 U.S.C. §2601 et seq. and the Americans with Disabilities Act, 42 U.S.C. §12101 et seq. 
 (c)
Termination by the Company for Cause. The Company may terminate the Executive’s employment hereunder for Cause. For purposes of this Agreement, “Cause” shall mean any of the following: 

(i) the Executive’s unauthorized use or disclosure of confidential information or trade secrets of the Company for
Executive’s benefit or any material breach of a written agreement between the Executive and the Company, including without limitation a material breach of this Agreement or the Restrictive Covenants Agreement; provided, however, that any such
disclosure under the collaboration agreement entered into by Adimab, LLC and the Company shall not constitute Cause under this Agreement; 

(ii) the Executive’s conviction of, or pleading no contest to, a felony under the laws of the United States or any state
thereof (other than in connection with a traffic violation that does not result in imprisonment) or any crime that results in the Executive’s incarceration in a federal, state, or local jail or prison; 

(iii) the Executive’s material and willful misconduct in the performance of the Executive’s duties or the
Executive’s willful or repeated failure or refusal to substantially perform assigned duties (other than any such failure of refusal resulting from the Executive’s incapacity due to physical or mental illness or any such actual or
anticipated failure after the issuance of a notice of Good Reason by the Executive pursuant to Section 3(e) hereof), in any case, which willful misconduct, failure or refusal has continued for more than thirty (30) days following written
notice from the CEO of such willful misconduct, failure or refusal; 
 (iv) any act of fraud, embezzlement or material
misappropriation committed by the Executive against the Company (other than good faith expense account disputes); 

  
 4 

 (v) willful engaging by the Executive in any act that brings the Company
into public disrepute or disgrace or causes material harm to the customer relations, operations or business prospects of the Company; or 

(vi) the Executive’s failure to cooperate with a bona fide internal investigation or an investigation by regulatory or law
enforcement authorities, after being instructed by the Company to cooperate, or the willful destruction or failure to preserve documents or other materials known to be relevant to such investigation or the inducement of others to fail to cooperate
or to produce documents or other materials in connection with such investigation. 
 For purposes of this Section 3(c), no act, or failure to act, on
the Executive’s part shall be deemed “willful” if done, or omitted to be done, by the Executive in good faith and with reasonable belief that the Executive’s act, or failure to act, was in the best interest of the Company. 

In the case of any termination for Cause, the Company shall provide written notice to the Executive setting forth to a reasonable extent at least the
principal acts or omissions of the Executive giving rise to Cause for termination. It is agreed to by the parties that the below par or below average financial performance of the Company and/or its subsidiaries, in and of itself shall not constitute
Cause for employment termination under this Agreement. 
 A termination for Cause under this Section 3(c) (other than with respect to
Section 3(c)(ii) shall in no event become effective under the Agreement unless the provisions of this paragraph are complied with. The Executive must be given written notice by the Board of the intention to terminate Executive’s employment
for Cause, such notice (A) to state in detail the act or acts or failure or failures to act that constitute the grounds on which the proposed termination for Cause is based and (B) to be given within three (3) months of the Board
learning of such act or acts or failure or failures to act. The Executive shall have ten (10) days after the date that such written notice has been given to the Executive in which to cure such conduct, to the extent such cure is possible. If
the Executive fails to cure such conduct, the Executive shall thereupon be terminated for Cause. 
 (d) Termination by the Company without
Cause. The Company may terminate the Executive’s employment hereunder at any time without Cause. Any termination by the Company of the Executive’s employment under this Agreement which does not constitute a termination for Cause under
Section 3(c) and does not result from the death or disability of the Executive under Section 3(a) or 3(b) shall be deemed a termination without Cause. 

(e) Termination by the Executive. The Executive may terminate employment hereunder at any time for any reason, including but not limited
to, Good Reason. For purposes of this Agreement, “Good Reason” shall mean that the Executive has completed all steps of the Good Reason Process (hereinafter defined) following the occurrence of any of the following
events without the Executive’s consent (each, a “Good Reason Condition”): 
 (i) a
material diminution in the Executive’s title, responsibilities, authority or duties; 

  
 5 

 (ii) a Change in Control following which either: (A) there is a
material reduction in the budget over which the Executive retains authority or (B) the Executive is not CEO of the Company or, if the Company becomes a subsidiary of one or more entities following the Change in Control, the
post-consummation ultimate parent entity of the Company; or 
 (iii) a material breach of this Agreement by the Company,
including without limitation, a reduction of the Executive’s Base Salary or Target Bonus in violation of Section 2(a) or 2(b) (except for across-the-board
salary reductions of not more than ten percent (10%) similarly affecting all or substantially all senior management employees of the Company), or the failure of the Company to obtain the assumption in writing of the Company’s obligations to the
Executive under this Agreement by any successor as required under Section 13 below. 
 (f) Good Reason Process. The
“Good Reason Process” consists of the following steps: 
 (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 sixty (60) days of the first occurrence of such condition; 

(iii) the Executive cooperates in good faith with the Company’s efforts, for a period of not less than thirty
(30) days following such notice (the “Cure Period”), to remedy the Good Reason Condition; 

(iv) notwithstanding such efforts, the Good Reason Condition continues to exist at the end of the Cure Period; and 

(v) the Executive terminates employment within sixty (60) 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. 

4. Matters Related to Termination. 

(a) Notice of Termination. Except for termination as specified in Section 3(a), any termination of the Executive’s employment
by the Company or any such termination by the Executive shall be communicated by written Notice of Termination to the other party hereto. 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. 

  
 6 

 (b) Date of Termination. “Date of Termination” shall
mean: (i) if the Executive’s employment is terminated by death, the date of death; (ii) if the Executive’s employment is terminated on account of disability under Section 3(b) or by the Company for Cause under
Section 3(c), the date on which Notice of Termination is given; (iii) if the Executive’s employment is terminated by the Company without Cause under Section 3(d), thirty (30) days after the date on which a Notice of
Termination is given or a later date otherwise specified by the Company in the Notice of Termination; (iv) if the Executive’s employment is terminated by the Executive under Section 3(e) other than for Good Reason, thirty
(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 under Section 3(e) 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. 
 (c) Accrued Obligations. If the Executive’s employment with the
Company is terminated for any reason, the Company shall pay or provide to the Executive (or to the Executive’s authorized representative or estate) (i) any Base Salary earned through the Date of Termination; (ii) unpaid expense
reimbursements (subject to, and in accordance with, Section 2(c) of this Agreement); and (iii) any vested benefits the Executive may have under any employee benefit plan or compensation arrangement of the Company (including equity
compensation plans and insurance coverages) through the Date of Termination, which vested benefits shall be paid and/or provided in accordance with the terms of such employee benefit plans. In the event that the Executive terminates employment due
to death or Disability (as defined in Section 3(b) above), the Executive (or in the case of death, the Executive’s estate) shall be entitled to receive the Earned Bonus (as defined in Section 5(a)) at the same time bonuses are paid to
other employees who are actively employed by the Company. The amounts described under this Section 4(c) are referred to below as the “Accrued Obligations.” 

(d) Resignation of All Other Positions. To the extent applicable, the Executive shall be deemed to have resigned from all officer
positions that the Executive holds with the Company or any of its respective subsidiaries and affiliates upon the termination of the Executive’s employment for any reason. The Executive shall execute any documents in reasonable form as may be
requested to confirm or effectuate any such resignations. 
 5. Severance Pay and Benefits Upon Termination by the Company without Cause
or by the Executive for Good Reason. If the Executive’s employment is terminated by the Company without Cause as provided in Section 3(d), or the Executive terminates employment for Good Reason as provided in Section 3(e), then,
in addition to the Accrued Obligations, and subject to (i) the Executive signing a separation agreement and release in a form substantially the same as set forth in Appendix B (the “Separation
Agreement”), which provides that if the Executive materially breaches any of the Continuing Obligations, all payments of the Severance Amount shall immediately cease, and (ii) the Separation Agreement becoming irrevocable, all
within sixty (60) days after the Date of Termination (or such shorter period as set forth in the Separation Agreement): 
 (a) Cash
Severance. The Company shall pay the Executive an amount equal to twelve (12) months’ of the Executive’s Base Salary (the “Severance Amount”) and, in the event that the Executive’s employment is
terminated after the end of the calendar year but prior to the payment of any Annual Bonus for the immediately preceding calendar year, the Executive shall be entitled to receive a lump sum payment of any unpaid Annual Bonus earned based on
achievement of the applicable performance goals and objectives, without any reduction for individual performance, with respect to such immediately preceding calendar year (the “Earned Bonus”). 

  
 7 

 (b) COBRA Premiums. Subject to the Executive’s copayment of premium amounts at
the applicable active employees’ rate and the Executive’s proper election to receive benefits under the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended (“COBRA”), the Company shall pay to
the group health plan provider or the COBRA provider a monthly payment 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
until the earliest of (A) the twelve (12) month anniversary of the Date of Termination; (B) the date that the Executive becomes eligible for group medical plan benefits under any other employer’s group medical plan; or
(C) the cessation of the Executive’s health continuation rights under COBRA; provided, however, that if the Company determines that it cannot pay such amounts to the group health plan provider or the COBRA provider (if applicable) without
potentially violating applicable law (including, without limitation, Section 2716 of the Public Health Service Act), then the Company shall convert such payments to payroll payments directly to the Executive for the time period specified above.
Such payments to the Executive shall be subject to tax-related deductions and withholdings and paid on the Company’s regular payroll dates. 

(c) Delayed Forfeiture of Time-Based Equity Awards. Notwithstanding anything to the contrary in any Time-Based Equity Awards, if the
Separation Agreement becomes effective, the unvested portions of all Time-Based Equity Awards shall not terminate or be forfeited on the Date of Termination, but rather shall remain outstanding until ninety (90) days after the Date of
Termination (the “Pre-CIC Protection Period”). If the Company has not, prior to the end of the Pre-CIC Protection Period, entered into a
definitive agreement that, if closed, would result in a Change in Control (a “P&S Agreement”), then the unvested portion of the Time-Based Equity Awards shall terminate and be forfeited. If the Company, prior the
end of the Pre-CIC Protection Period, enters into a P&S Agreement, then the Time-Based Equity Awards shall remain outstanding and become fully vested upon a Change in Control resulting from such agreement.
Time-Based Equity Awards shall terminate and be forfeited if the Company abandons a sale of the Company as contemplated under the P&S Agreement entered into during the Pre-CIC Protection Period. No
additional vesting of the Time-Based Equity Awards shall occur following the Date of Termination except on account of a Change in Control during or after the Pre-CIC Protection Period as specifically provided
above. For the avoidance of doubt, any unvested Performance-Based Equity Awards shall terminate and be forfeited on the Date of Termination unless otherwise provided by the terms of the Plan or the applicable award agreement. 

(d) Severance Payment Timing. The amounts payable under Section 5 (other than the Earned Bonus, as applicable), to the extent
taxable, shall be paid or commence to be paid within thirty (30) days after the Date of Termination (or such longer period as required in order to have an enforceable release, but in no event later than sixty (60) days after the Date of
Termination); provided, however, that if the period applicable to Executive’s termination of employment begins in one calendar year and ends in a second calendar year, such payments to the extent they qualify as
“non-qualified deferred compensation” within the meaning of Section 409A of the Internal Revenue Code of 1986, as amended (the “Code”), shall be paid or commence
to be paid in the second calendar year by the last day of such period. The Severance Amount shall be paid in a single lump sum and the Earned Bonus, if any, shall be paid at the same time as if the Executive had remained employed with the Company
through the payment date. 

  
 8 

 6. Severance Pay and Benefits Upon Termination by the Company without Cause or by the
Executive for Good Reason within the Change in Control Period. The provisions of this Section 6 shall apply in lieu of, and expressly supersede, the provisions of Section 5 if (i) the Executive’s employment is terminated
either (a) by the Company without Cause as provided in Section 3(d), or (b) by the Executive for Good Reason as provided in Section 3(e), and (ii) the Date of Termination is during the Change in Control Period. The
“Change in Control Period” shall begin on the earlier of (a) the signing of a P&S Agreement and (b) the date that is 3 months prior to the closing of a Change in Control, and shall end on the date that is
twelve (12) months after the occurrence of the first event constituting a Change in Control. These provisions shall terminate and be of no further force or effect after the Change in Control Period. In no event will the Executive be entitled to
severance benefits under both Section 5 and Section 6 of this Agreement. If the Company has commenced providing severance pay and benefits to the Executive under Section 5 prior to the date that the Executive becomes eligible to
receive severance pay and benefits under this Section 6, the severance pay and benefits previously provided to the Executive under Section 5 shall reduce the severance pay and benefits to be provided under this Section 6. 

If the Executive’s employment is terminated by the Company without Cause as provided in Section 3(d) or the Executive terminates employment for Good
Reason as provided in Section 3(e) and in each case the Date of Termination occurs during the Change in Control Period, then, in addition to the Accrued Obligations, and subject to the signing of the Separation Agreement by the Executive and
the Separation Agreement becoming fully effective, all within the time frame set forth in the Separation Agreement but in no event more than sixty (60) days after the Date of Termination: 

(a) Cash Severance. The Company shall pay the Executive a lump sum in cash in an amount equal to the sum of (A) eighteen (18)
months’ of the Executive’s then-current Base Salary (or the Executive’s Base Salary in effect immediately prior to the Change in Control, if higher), and (B) 1.5 times the Executive’s Target Bonus for the then-current year (or
the Executive’s Target Bonus in effect immediately prior to the Change in Control, if higher), plus, if applicable, any Earned Bonus (the “Change in Control Payment”). 

(b) COBRA Premiums. Subject to the Executive’s copayment of premium amounts at the applicable active employees’ rate and the
Executive’s proper election to receive benefits under COBRA, the Company shall pay to the group health plan provider or the COBRA provider a monthly payment 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 until the earliest of (A) the eighteen (18) month anniversary of the Date of Termination; (B) the date that the Executive becomes eligible for
group medical plan benefits under any other employer’s group medical plan; or (C) the cessation of the Executive’s 

  
 9 

 
health continuation rights under COBRA; provided, however, that if the Company determines that it cannot pay such amounts to the group health plan provider or the COBRA provider (if applicable)
without potentially violating applicable law (including, without limitation, Section 2716 of the Public Health Service Act), then the Company shall convert such payments to payroll payments directly to the Executive for the time period
specified above. Such payments to the Executive shall be subject to tax-related deductions and withholdings and paid on the Company’s regular payroll dates. 

(c) Accelerated Vesting of Equity Awards. Notwithstanding anything to the contrary in any Equity Award, the Time-Based Equity Awards
shall immediately accelerate and become fully vested and exercisable or nonforfeitable as if the Executive had remained employed with the Company as of the later of (i) the Date of Termination (or, if later, the Change in Control) or
(ii) the effective date of the Separation Agreement (the “Accelerated Vesting Date”), provided that in order to effectuate the accelerated vesting contemplated by this subsection, the unvested portion of such
Equity Awards that would otherwise terminate or be forfeited on the Date of Termination will be delayed until the earlier of (A) the effective date of the Separation Agreement (at which time acceleration will occur), or (B) the date that
the Separation Agreement can no longer become fully effective (at which time the unvested portion of the Executive’s Time-Based Equity Awards will terminate or be forfeited). Notwithstanding the foregoing, no additional time-based vesting of
the Time-Based Equity Awards shall occur during the period between the Date of Termination and the Accelerated Vesting Date except as specifically provided in this Section 6(c). 

(d) Change in Control Payment Timing. The amounts payable under this Section 6, to the extent taxable, shall be paid or commence to
be paid within sixty (60) days after the Date of Termination or, if later, the Change in Control; provided, however, that if the 60-day period begins in one calendar year and ends in a second calendar
year, such payments to the extent they qualify as “non-qualified deferred compensation” within the meaning of Section 409A of the Code, shall be paid or commence to be paid in the second
calendar year by the last day of such 60-day period. 
 7. 280G 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). 

  
 10 

 (b) For purposes of this Section 7, 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) For purposes of determining whether and the extent to which the Aggregate Payments will be subject to the excise tax, (i) no portion
of the Aggregate Payments the receipt or enjoyment of which Executive shall have waived at such time and in such manner as not to constitute a “payment” within the meaning of Section 280G(b) of the Code shall be taken into account,
(ii) no portion of the Aggregate Payments shall be taken into account which, in the written opinion of independent auditors or advisors of nationally recognized standing (“Independent Advisors”) selected by the Company
prior to a Change in Control, does not constitute a “parachute payment” within the meaning of Section 280G(b)(2) of the Code (including by reason of Section 280G(b)(4)(A) of the Code) and, in calculating the excise tax, no
portion of such Aggregate Payments shall be taken into account which, in the opinion of Independent Advisors, constitutes reasonable compensation for services actually rendered, within the meaning of Section 280G(b)(4)(B) of the Code, in excess
of the “base amount” (as defined in Section 280G(b)(3) of the Code) allocable to such reasonable compensation, and (iii) the value of any non-cash benefit or any deferred payment or benefit
included in the Aggregate Payments shall be determined by the Independent Advisors in accordance with the principles of Sections 280G(d)(3) and (4) of the Code. The Independent Advisors shall provide detailed supporting calculations both to the
Company and the Executive within fifteen (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 Independent Advisors shall be
binding upon the Company and the Executive. 
 8. 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 or otherwise on account of the Executive’s separation from service would be considered deferred compensation otherwise subject to the 20% additional tax imposed pursuant to Section 409A(a) of the
Code as a result of the application of Section 

  
 11 

 
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 (6) months and one day after the
Executive’s separation from service, or (B) the Executive’s death. If any such delayed cash payment is otherwise payable on an installment basis, the first payment shall include a catch-up
payment covering amounts that would otherwise have been paid during the 6-month period but for the application of this provision, and the balance of the installments shall be payable in accordance with their
original schedule. 
 (b) 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 (except for any lifetime or other aggregate limitation applicable to medical expenses). Such
right to reimbursement or in-kind benefits is not subject to liquidation or exchange for another benefit. 

(c) 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). 
 (d) The parties intend that this Agreement will be
administered in a manner not intended to violate 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. Each payment pursuant to this Agreement is intended to constitute a separate payment for purposes of Treasury Regulation
Section 1.409A-2(b)(2). Any such payment that may be excluded from Section 409A either as separation pay due to an involuntary separation from service or as a short-term deferral (each as described
in Treasury regulations issued under Section 409A) shall be excluded from Section 409A to the greatest extent possible. 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. 

(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. 

  
 12 

 9. Continuing Obligations.  

(a) Restrictive Covenants Agreement. As a condition of entering into this Agreement, Executive agrees to the terms of the Employee
Proprietary Information and Inventions Assignment Agreement, dated [______________] between the Company and the Executive (the “Restrictive Covenants Agreement”). For purposes of this Agreement, the obligations in this
Section 9 and those that arise in the Restrictive Covenants Agreement and any other agreement relating to confidentiality, assignment of inventions, or other restrictive covenants that may later be agreed to by the Executive shall collectively
be referred to as the “Continuing Obligations.” 
 (b) Third-Party Agreements and Rights. The Executive
hereby confirms that, except with respect to any agreements entered into by Executive in connection with the Approved Outside Activities, the Executive is not bound by the terms of any agreement with any previous employer or other party which
restricts in any way the Executive’s use or disclosure of information, other than confidentiality restrictions (if any), 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 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. 

(c) Litigation and Regulatory Cooperation. During and after the Executive’s employment, the Executive shall cooperate fully with
the Company in (i) 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, and (ii) the investigation, whether internal or external, of any matters about which the Company believes the Executive may have knowledge or information; provided, however, that Executive shall abstain from involvement
in any dispute involving the Company and Adimab, LLC, including litigation and cooperation on behalf of Adimab, LLC. The Executive’s full cooperation in connection with such claims, actions or investigations shall include, but not be limited
to, being available to meet with counsel upon reasonable notice to answer questions or 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 9(c), which shall be in addition to its obligations to provide indemnification to the Executive. 

  
 13 

 (d) 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 Continuing Obligations, and that in any event monetary 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 the Continuing Obligations, 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. 
 10. Consent to Jurisdiction. The parties hereby consent to the
jurisdiction of the state and federal courts of the State of New Hampshire. Accordingly, with respect to any such court action, the Executive (a) submits to the exclusive 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. 

11. Integration. This Agreement constitutes the entire agreement between the parties with respect to the subject matter hereof and
supersedes all prior agreements between the parties concerning such subject matter, including the Prior Agreement, provided that the Restrictive Covenants Agreement and the agreements governing any Equity Awards remain in full force and
effect. 
 12. Withholding; Tax Effect. 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. Nothing in this Agreement shall be construed to require the Company to make any payments to compensate the Executive for any adverse tax effect associated with any
payments or benefits or for any deduction or withholding from any payment or benefit. 
 13. Successors and Assigns. This Agreement
will be binding upon and inure to the benefit of (a) the heirs, executors, and legal representatives of Executive upon Executive’s death as well as any beneficiaries duly designated by Executive prior to death in accordance with the terms
hereof, and (b) any successor of the Company. Any such successor of the Company will be deemed substituted for the Company under the terms of this Agreement for all purposes. For this purpose, “successor” means any person, firm,
corporation, or other business entity which at any time, whether by purchase, merger, or otherwise, directly or indirectly acquires all or substantially all of the assets or business of the Company. The Company shall require its respective
successors to expressly assume and agree to perform this Agreement in the same manner and to the same extent that the Company would be required to perform it if no such succession had taken place. Notwithstanding the foregoing, the Company shall
remain, with such successor, jointly and severally liable for all of their obligations hereunder. Except as herein provided, this Agreement may not otherwise be assigned by the Company and any attempted assignment in contravention hereof will be
null and void. In the event of the Executive’s death after the Executive’s termination of employment 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 the Executive’s death (or to the Executive’s estate, if the Executive fails to make such designation). The Executive may designate one or more
persons or entities as the primary or contingent beneficiaries of any amounts to be received under this Agreement. Such designation must be in the form of a signed writing reasonably acceptable to the Board or the Board’s designee. Executive
may make or change such designation at any time. Except as approved by the Board or the Board’s designee, none of the rights of the Executive to receive any form of compensation payable pursuant to this Agreement may be assigned or transferred
except by will or the laws of descent and distribution. Any other attempted assignment, transfer, conveyance, or other disposition of Executive’s right to compensation or other benefits will be null and void. 

  
 14 

 14. 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. 
 15. Survival. The provisions of this Agreement shall survive the termination of this Agreement and/or the termination of the
Executive’s employment to the extent necessary to effectuate the terms contained herein, including but not limited to the Company’s obligation to make severance payments or provide indemnification and the Executive’s obligations to
comply with the Continuing Obligations. 
 16. 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. 
 17. Notices. Any notices, requests, demands and other communications
provided for by this Agreement shall be sufficient if in writing and (i) delivered in person, (ii) sent by a nationally recognized overnight courier service or 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, in the case of the Company, at its main offices, attention of the Board or (iii) sent via email to the Executive at the Executive’s Company email
address. 
 18. 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. 
 19. Indemnification. The Company will (i) indemnify the Executive with respect
to claims arising out of any action taken or not taken in Executive’s capacity as an officer or employee of the Company or its subsidiaries; provided, that the Executive acted in good faith and in a manner that he reasonably believed to be in
or not opposed to the best interests of the Company and, with respect to any criminal action or proceeding, had no reasonable cause to believe that his conduct was unlawful, (ii) advance to the Executive all reasonable and documented out of
pocket costs and expenses incurred by the Executive in connection with the foregoing clause (i), including but not limited to attorneys’ fees, and (iii) provide for the Executive to be covered by D&O insurance, with respect to clauses
(i) and (ii), on the same terms as are made available to the CEO and/or members of the Board, as applicable; provided that, this Agreement constitutes an undertaking that amounts advanced under clause (ii) shall be

  
 15 

 
promptly repaid to the Company by the Executive if it shall ultimately be determined that the Executive is not entitled to be indemnified by the Company pursuant to this Section 19. Nothing
herein shall limit any right that the Executive may have in respect of indemnification, advancement or liability insurance coverage under any other policy, plan, contract or arrangement of the Company or its subsidiaries or under applicable law with
respect to his or her services as an officer or employee for the Company or its subsidiaries, and the Company shall not change any right to such indemnification or advancement with respect to the Executive after his or her termination of employment.

 20. No Mitigation; Offset. In the event of any termination of employment and service hereunder, the Executive shall be under no
obligation to seek other employment, and there shall be no offset against any amounts due Executive under this Agreement on account of any remuneration attributable to any subsequent employment that Executive may obtain. The preceding sentence shall
not limit the Company’s right to enforce the termination provisions set forth in Section 4 above or the repayment or recoupment provisions in Section 22(d) and Section 23 below. 

21. 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 to the extent specifically provided in Section 7 hereof, and except that the Executive shall have no rights to continue any severance benefits under any
Company severance pay plan, offer letter or otherwise. Except for the Restrictive Covenants Agreement, in the event that the Executive is party to an agreement with the Company providing for payments or benefits under such plan or agreement and
under this Agreement, the terms of this Agreement shall govern and the Executive may receive payment under this Agreement only and not both. Further, Section 5 and Section 6 of this Agreement are mutually exclusive and in no event shall
the Executive be entitled to cash severance payments or benefits pursuant to both Section 5 and Section 6 of this Agreement. 
 22.
Governing Law; Venue and Enforcement. 
 (a) This Agreement will be governed by and construed in accordance with applicable federal
laws and, to the extent not inconsistent therewith or preempted thereby, with the laws of the State of New Hampshire, including any applicable statutes of limitation, without regard to any otherwise applicable principles of conflicts of laws or
choice of law rules (whether of the State of New Hampshire or any other jurisdiction) that would result in the application of the substantive or procedural rules or law of any other jurisdiction. 

(b) Each party agrees that any controversy or claim arising out of or relating to this Agreement or the alleged breach hereof shall be
instituted in the United States District Court for the District of Massachusetts, or if that court does not have or will not accept jurisdiction, in any court of general jurisdiction in the Commonwealth of Massachusetts, and Executive and the
Company hereby consent to the personal and exclusive jurisdiction of such court(s) and hereby waive any objection(s) that any such party may have to personal jurisdiction, the laying of venue of any such proceedings and any claim or defense of
inconvenient forum. 

  
 16 

 (c) Any award shall be payable to Executive no later than the end of Executive’s first
taxable year in which the Company either concede the amount (or portion of the amount) payable or are required to make payment pursuant to a judgment by a court, and shall include interest on any amounts due and payable to Executive from the date
due to the date of payment, calculated at one hundred and ten percent (110%) of the base lending in effect at Citibank, N.A. (or any successor thereto) on the first of each month. 

(d) If it is necessary or desirable for Executive to retain legal counsel or incur other costs and expenses in connection with the enforcement
of any or all of Executive’s rights under this Agreement, the Company shall, within thirty (30) days after receipt of an invoice certifying payment by Executive of such attorney fees, or payment of such other costs and expenses, reimburse
Executive’s reasonable attorneys’ fees and costs and such other expenses, including expenses of any expert witnesses, in connection with the enforcement of said rights in an amount not to exceed $100,000; provided, that to the extent (and
only to the extent) such expenses are subject to Section 409A, in no event shall any payment of Executive’s fees, costs, and expenses be made after the last day of Executive’s taxable year following the taxable year in which the
expense was incurred; provided, further, that Executive shall repay any such advance of fees, costs, and expenses (and no additional advances or reimbursements shall be made) (i) if there is a specific judicial finding that Executive’s
request to litigate was frivolous, unreasonable or without foundation; (ii) if it has been finally determined that Executive’s termination of employment for Cause was proper; or (iii) if the Board determines in good faith that as of
the date of Executive’s termination of employment and service, grounds for an involuntary termination for Cause had existed. 
 23.
Recoupment. Executive shall be required to repay incentive pay to the Company as described in this Section 23, and the Company may offset payments otherwise due and payable under this Agreement by the amounts required to be repaid under
this Section 23. Repayment of incentive pay shall be required if, and to the extent that, the Compensation Committee determines, in its sole discretion, that repayment is due on account of a restatement of the Company’s financial
statements or otherwise pursuant to any clawback or compensation recoupment policy as may be in effect or amended from time to time) (the “Recoupment Policy”). Where the result of a performance measure was a factor in
determining the compensation awarded or paid, but (i) the subsequently-restated performance measure was not the only factor used to determine the compensation awarded or paid, or (ii) the incentive-based compensation is not awarded or paid
on a formulaic basis, the Committee will determine in its discretion the amount, if any, by which the payment or award should be reduced. If the Committee seeks to recover payment of incentive pay as a result of a restatement of the Company’s
financial statements or otherwise under the Recoupment Policy, Executive shall pay to the Company, as applicable, (A) all or a portion (as determined by the Committee in its sole discretion) of the amount by which the payment received by
Executive exceeds the amount that would have been paid to Executive based on the restated financial statements, or (B) the amount (as determined by the Committee in its sole discretion) to be repaid pursuant to the Recoupment Policy. Nothing in
this Section 23 shall preclude the Company (or any other person) from taking any other action. 

  
 17 

 24. 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. 

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

 

	
	 ADAGIO THERAPEUTICS, INC.

	
	By:                                     
                                         
                   
	
Its:                  
                                         
                                      

	
	 EXECUTIVE

	
	  

Tillman Gerngross

  
 18 

 Appendix A 

Outside Activities 
  

	 	•	 	 Executive is a co-founder of Adimab, LLC and serves as its
Chief Executive Officer and as a director 

  

	 	•	 	 Executive is a co-founder and Chairman of Avitide, Inc.

  

	 	•	 	 Executive is Chairman of Alector, Inc. 

 

	 	•	 	 Executive is a co-founder, President and Chairman of Amagma,
Inc. 

  

	 	•	 	 Executive is a co-founder, President and Chairman of Ankyra
Therapeutics, Inc. 

  

	 	•	 	 Executive is currently a Venture Partner at SV Life Sciences Advisors, LLC 

 

	 	•	 	 Executive currently teaches at the Thayer School of Engineering, at Dartmouth College 

 Appendix B 

FORM SEPARATION AGREEMENT 
 [Date] 

[Name] 
 [Address] 

Re: Separation Agreement 
 Dear [Name]: 

This letter sets forth the substance of the separation agreement (the “Agreement”) which Adagio Therapeutics, Inc. (the “Company”) is
offering to you to aid in your employment transition. 
 1. Separation. Your last day of work with the Company and your employment termination date
will be [Date] (the “Separation Date”). 
 2. Accrued Salary. On the Separation Date, the Company will pay you all accrued salary earned
through the Separation Date, subject to standard payroll deductions and withholdings. You will receive these payments regardless of whether or not you sign this Agreement. 

3. Severance Benefits. If you execute and do not revoke this Agreement, the Company will provide you with the following Severance Benefits pursuant to
the terms of your [month, date, year] Employment Agreement. 
 The Company is offering severance to you in reliance on Treasury Regulation Section 1.409A-1(b)(9) and the short term deferral exemption in Treasury Regulation Section 1.409A-1(b)(4). Any payments made in reliance on Treasury Regulation Section 1.409A-1(b)(4) will be made not later than March 15, 20__. For purposes of Code Section 409A, your right to receive any installment payments under this Agreement (whether severance payments,
reimbursements or otherwise) shall be treated as a right to receive a series of separate payments and, accordingly, each installment payment hereunder shall at all times be considered a separate and distinct payment. 

4. Benefit Plans. 
 If you are currently participating in
the Company’s group health insurance plans, your participation as an employee will end on [the Separation Date] or [the last day of the month in which separation occurs]. Thereafter, to the extent provided by the federal COBRA law
or, if applicable, state insurance laws, and by the Company’s current group health insurance policies, you will be eligible to continue your group health insurance benefits at your own expense. Later, you may be able to convert to an individual
policy through the provider of the Company’s health insurance, if you wish. 

  
 20 

 Deductions for the 401(k) Plan will end with your last regular paycheck. You will receive information by
mail concerning 401(k) plan rollover procedures should you be a participant in this program. 
 You may be eligible for unemployment insurance benefits
after the Separation Date. The Massachusetts Department of Unemployment Assistance, not the Company, will determine your eligibility for such benefits. 

5. Stock Options. You were granted an option to purchase ________ shares of the Company’s common stock, pursuant to the Company’s
[correct name of Stock or incentive plan] (the “Plan”). Under the terms of the Plan and your stock option grant, vesting will cease as of the Separation Date. 

6. Other Compensation or Benefits. You acknowledge that, except as expressly provided in this Agreement, you will not receive any additional
compensation, severance or benefits after the Separation Date. 
 7. Expense Reimbursements. You agree that, within ten (10) days of the
Separation Date, you will submit your final documented expense reimbursement statement reflecting all business expenses you incurred through the Separation Date, if any, for which you seek reimbursement. The Company will reimburse you for reasonable
business expenses pursuant to its regular business practice. 
 8. Return of Company Property. By the Separation Date, you agree to return to the Company all
Company documents (and all copies thereof) and other Company property that you have had in your possession at any time, including, but not limited to, Company files, notes, drawings, records, business plans and forecasts, financial information,
specifications, computer-recorded information, tangible property (including, but not limited to, computers), credit cards, entry cards, identification badges and keys; and, any materials of any kind that contain or embody any proprietary or
confidential information of the Company (and all reproductions thereof). Please coordinate return of Company property with [name/title]. Receipt of the severance benefits described in Section 3 of this Agreement is expressly conditioned upon
return of all Company Property. 
 9. Confidential Information and Post-Termination Obligations. Both during and after your employment
you acknowledge your continuing obligations under your Employee Proprietary Information and Inventions Assignment Agreement (“Restrictive Covenants Agreement”) not to use or disclose any confidential or proprietary information of the
Company and to refrain from certain solicitation activities. A copy of your Restrictive Covenants Agreement is attached hereto. If you have any doubts as to the scope of the restrictions in your agreement, you should contact [name/title] immediately
to assess your compliance. As you know, the Company will enforce its contract rights. Please familiarize yourself with the enclosed agreement which you signed. Confidential information that is also a “trade secret,” as defined by
law, may be disclosed (A) if it 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. In addition, in the event that you file a lawsuit for retaliation by the Company for reporting a
suspected violation of law, you may disclose the trade secret to your attorney and use the trade secret information in the court proceeding, if you: (A) file any document containing the trade secret under seal; and (B) do not disclose the
trade secret, except pursuant to court order. 
  

  
 21 

 10. Non-Compete. In exchange for the payments and other
consideration under this Agreement, to which you would not otherwise be entitled, you agree that during the one year period after the Separation Date, you will not, whether paid or not: (i) serve as a partner, principal, licensor, licensee,
employee, consultant, officer, director, manager, agent, affiliate, representative, advisor, promoter, associate, investor, or otherwise for, (ii) directly or indirectly, own, purchase, organize or take preparatory steps for the organization
of, or (iii) build, design, finance, acquire, lease, operate, manage, control, invest in, work or consult for or otherwise join, participate in or affiliate yourself with, any business whose business, products or operations are in any respect
involved in Conflicting Services (defined below) anywhere in the Restricted Territory (defined below); provided, however, that the restriction in this Section 10 shall not apply to your employment or engagement with Adimab, LLC. Should you
obtain other employment within 12 months immediately following the Separation Date, you agree to provide written notification to the Company as to the name and address of your new employer, the position that you expect to hold, and a general
description of your duties and responsibilities, at least three business days prior to starting such employment. 
 a) The
parties agree that for purposes of this Agreement, “Conflicting Services” means any business in which the Company is engaged, or in which the Company has plans to be engaged, or any service that the Company provides or has plans to
provide. 
 b) The parties further agree that for purposes of this Agreement, “Restricted Territory” means the
geographic areas in which you provided services for the Company or had a material presence or influence, during any time within the last two years prior to the Separation Date. 

11. Confidentiality. The provisions of this Agreement will be held in strictest confidence by you and will not be publicized or disclosed in any manner
whatsoever; provided, however, that: (a) you may disclose this Agreement to your immediate family; (b) you may disclose this Agreement in confidence to your attorney, accountant, auditor, tax preparer, and financial advisor; and
(c) you may disclose this Agreement insofar as such disclosure may be required by law. Notwithstanding the foregoing, nothing in this Agreement shall limit your right to voluntarily communicate with the Equal Employment Opportunity Commission,
United States Department of Labor, the National Labor Relations Board, the Securities and Exchange Commission, other federal government agency or similar state or local agency or to discuss the terms and conditions of your employment with others to
the extent expressly permitted by Section 7 of the National Labor Relations Act. 
 12.
Non-Disparagement. You agree not to disparage the Company, and the Company’s attorneys, directors, managers, partners, employees, agents and affiliates, in any manner likely to be harmful to them or
their business, business reputation or personal reputation; provided that you may respond accurately and fully to any question, inquiry or request for information when required by legal process. You further agree that, by no later than the Effective
Date, you shall delete or otherwise remove any and all disparaging public comments or statements that you made prior to 

  
 22 

 
the Effective Date about or relating to the Company, including, but not limited to, comments in online forums or on websites (including, but not limited to, Facebook, Glassdoor, Yelp, and
LinkedIn). Notwithstanding the foregoing, nothing in this Agreement shall limit your right to voluntarily communicate with the Equal Employment Opportunity Commission, United States Department of Labor, the National Labor Relations Board, the
Securities and Exchange Commission, other federal government agency or similar state or local agency or to discuss the terms and conditions of your employment with others to the extent expressly permitted by Section 7 of the National Labor
Relations Act. 
 13. Cooperation after Termination. You agree to cooperate fully with the Company in all matters relating to the transition of your
work and responsibilities on behalf of the Company, including, but not limited to, any present, prior or subsequent relationships and the orderly transfer of any such work and institutional knowledge to such other persons as may be designated by the
Company, by making yourself reasonably available during regular business hours. 
 14. Release. In exchange for the payments and other consideration
under this Agreement, to which you would not otherwise be entitled, and except as otherwise set forth in this Agreement, you, on behalf of yourself and, to the extent permitted by law, on behalf of your spouse, heirs, executors, administrators,
assigns, insurers, attorneys and other persons or entities, acting or purporting to act on your behalf (collectively, the “Employee Parties”), hereby generally and completely release, acquit and forever discharge the Company, its parents
and subsidiaries, and its and their officers, directors, managers, partners, agents, representatives, employees, attorneys, shareholders, predecessors, successors, assigns, insurers and affiliates (the “Company Parties”) of and from any
and all claims, liabilities, demands, contentions, actions, causes of action, suits, costs, expenses, attorneys’ fees, damages, indemnities, debts, judgments, levies, executions and obligations of every kind and nature, in law, equity, or
otherwise, both known and unknown, suspected and unsuspected, disclosed and undisclosed, arising out of or in any way related to agreements, events, acts or conduct at any time prior to and including the execution date of this Agreement, including
but not limited to: all such claims and demands directly or indirectly arising out of or in any way connected with your employment with the Company or the termination of that employment; claims or demands related to salary, bonuses, commissions,
stock, stock options, or any other ownership interests in the Company, vacation pay, fringe benefits, expense reimbursements, severance pay, or any other form of compensation; claims pursuant to any federal, state or local law, statute, or cause of
action; tort law; or contract law (individually a “Claim” and collectively “Claims”). The Claims you are releasing and waiving in this Agreement include, but are not limited to, any and all Claims that any of the Company Parties:

  

	 	•	 	 has violated its personnel policies, handbooks, contracts of employment, or covenants of good faith and fair
dealing; 

  

	 	•	 	 has discriminated against you on the basis of age, race, color, sex (including sexual harassment), national
origin, ancestry, disability, religion, sexual orientation, marital status, parental status, source of income, entitlement to benefits, any union activities or other protected category in violation of any local, state or federal law, constitution,
ordinance, or regulation, including but not limited to: Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1866 (42 U.S.C. 1981), the Civil Rights Act of 1991, the Genetic Information

  
 23 

	 	 
Nondiscrimination Act, Executive Order 11246, which prohibit discrimination based on race, color, national origin, religion, or sex; the Americans with Disabilities Act and Sections 503 and 504
of the Rehabilitation Act of 1973, which prohibit discrimination against the disabled, the Age Discrimination in Employment Act (ADEA), which prohibits discrimination based on age, the Older Workers Benefit Protection Act, the National Labor
Relations Act, the Lily Ledbetter Fair Pay Act, the anti-retaliation provisions of the Sarbanes-Oxley Act, or any other federal or state law regarding whistleblower retaliation; the Massachusetts Fair Employment Practices Act (M.G.L. c. 151B), the
Massachusetts Equal Rights Act, the Massachusetts Equal Pay Act, the Massachusetts Privacy Statute, the Massachusetts Sick Leave Law, the Massachusetts Civil Rights Act, all as amended, and any and all other federal, state or local laws, rules,
regulations, constitutions, ordinances or public policies, whether known or unknown, prohibiting employment discrimination; 

  

	 	•	 	 has violated any employment statutes, such as the WARN Act, which requires that advance notice be given of
certain workforce reductions; the Employee Retirement Income Security Act of 1974 (ERISA) which, among other things, protects employee benefits; the Fair Labor Standards Act of 1938, which regulates wage and hour matters; the National Labor
Relations Act, which protects forms of concerted activity; the Family and Medical Leave Act of 1993, which requires employers to provide leaves of absence under certain circumstances; the Fair Credit Reporting Act, the Employee Polygraph Protection
Act, the Massachusetts Payment of Wages Act (M.G.L. c. 149 sections 148 and 150), the Massachusetts Overtime regulations (M.G.L. c. 151 sections 1A and 1B), the Massachusetts Meal Break regulations (M.G.L. c. 149 sections 100 and 101), all as
amended, and any and all other federal, state or local laws, rules, regulations, constitutions, ordinances or public policies, whether known or unknown relating to employment laws, such as veterans’ reemployment rights laws;

  

	 	•	 	 has violated any other laws, such as federal, state, or local laws providing workers’ compensation benefits,
restricting an employer’s right to terminate employees, or otherwise regulating employment; any federal, state or local law enforcing express or implied employment contracts or requiring an employer to deal with employees fairly or in good
faith; any other federal, state or local laws providing recourse for alleged wrongful discharge, retaliatory discharge, negligent hiring, retention, or supervision, physical or personal injury, emotional distress, assault, battery, false
imprisonment, fraud, negligent misrepresentation, defamation, intentional or negligent infliction of emotional distress and/or mental anguish, intentional interference with contract, negligence, detrimental reliance, loss of consortium to you or any
member of your family, whistleblowing, and similar or related claims. 

 Notwithstanding the foregoing, other than events expressly
contemplated by this Agreement you do not waive or release rights or Claims that may arise from events that occur after the date this waiver is executed or your right to enforce this Agreement. Also excluded from this Agreement are any Claims which
cannot be waived by law, including, without limitation, any rights you 

  
 24 

 
may have under applicable workers’ compensation laws and your right, if applicable, to file or participate in an investigative proceeding of any federal, state or local governmental agency.
Nothing in this Agreement shall prevent you from filing, cooperating with, or participating in any proceeding or investigation before the Equal Employment Opportunity Commission, United States Department of Labor, the National Labor Relations Board,
the Occupational Safety and Health Administration, the Securities and Exchange Commission or any other federal government agency, or similar state or local agency (“Government Agencies”), or exercising any rights pursuant to Section 7
of the National Labor Relations Act. You further understand this Agreement does not limit your ability to voluntarily communicate with any Government Agencies or otherwise participate in any investigation or proceeding that may be conducted by any
Government Agency, including providing documents or other information, without notice to the Company. While this Agreement does not limit your right to receive an award for information provided to the Securities and Exchange Commission, you
understand and agree that, you are otherwise waiving, to the fullest extent permitted by law, any and all rights you may have to individual relief based on any Claims that you have released and any rights you have waived by signing this Agreement.
If any Claim is not subject to release, to the extent permitted by law, you waive any right or ability to be a class or collective action representative or to otherwise participate in any putative or certified class, collective or multi-party action
or proceeding based on such a Claim in which any of the Company Parties is a party. This Agreement does not abrogate your existing rights under any Company benefit plan or any plan or agreement related to equity ownership in the Company; however, it
does waive, release and forever discharge Claims existing as of the date you execute this Agreement pursuant to any such plan or agreement. 
 15. Your
Acknowledgments and Affirmations/ Effective Date of Agreement. You acknowledge that you are knowingly and voluntarily waiving and releasing any and all rights you may have under the ADEA, as amended. You also acknowledge and agree that
(i) the consideration given to you in exchange for the waiver and release in this Agreement is in addition to anything of value to which you were already entitled, and (ii) that you have been paid for all time worked, have received all the
leave, leaves of absence and leave benefits and protections for which you are eligible, and have not suffered any on-the-job injury for which you have not already filed
a Claim. You affirm that all of the decisions of the Company Parties regarding your pay and benefits through the date of your execution of this Agreement were not discriminatory based on age, disability, race, color, sex, religion, national origin
or any other classification protected by law. You affirm that you have not filed or caused to be filed, and are not presently a party to, a Claim against any of the Company Parties. You further affirm that you have no known workplace injuries or
occupational diseases. You acknowledge and affirm that you have not been retaliated against for reporting any allegation of corporate fraud or other wrongdoing by any of the Company Parties, or for exercising any rights protected by law, including
any rights protected by the Fair Labor Standards Act, the Family Medical Leave Act or any related statute or local leave or disability accommodation laws, or any applicable state workers’ compensation law. You further acknowledge and affirm
that you have been advised by this writing that: (a) your waiver and release do not apply to any rights or Claims that may arise after the execution date of this Agreement; (b) you have been advised hereby that you have the right to
consult with an attorney prior to executing this Agreement; (c) you have been given twenty-one (21) days to consider this Agreement (although you may choose to voluntarily execute this Agreement
earlier and if you do you will sign the Consideration Period waiver below); (d) you have seven (7) business days following your execution of this Agreement to revoke this Agreement; and (e) this Agreement shall not be effective
until the date upon which the revocation period has expired unexercised (the “Effective Date”), which shall be the eighth business day after this Agreement is executed by you. 

  
 25 

 16. No Admission. This Agreement does not constitute an admission by the Company of any wrongful
action or violation of any federal, state, or local statute, or common law rights, including those relating to the provisions of any law or statute concerning employment actions, or of any other possible or claimed violation of law or rights. 

17. Breach. You agree that upon any breach of this Agreement you will forfeit all amounts paid or owing to you under this Agreement. Further, you
acknowledge that it may be impossible to assess the damages caused by your violation of the terms of Sections 8, 9, 10 and 11 of this Agreement and further agree that any threatened or actual violation or breach of those Sections of this Agreement
will constitute immediate and irreparable injury to the Company. You therefore agree that any such breach of this Agreement is a material breach of this Agreement, and, in addition to any and all other damages and remedies available to the Company
upon your breach of this Agreement, the Company shall be entitled to an injunction to prevent you from violating or breaching this Agreement. You agree that if the Company is successful in whole or part in any legal or equitable action against you
under this Agreement, you agree to pay all of the costs, including reasonable attorneys’ fees, incurred by the Company in enforcing the terms of this Agreement. 

18. Miscellaneous. This Agreement, including any exhibits, constitutes the complete, final and exclusive embodiment of the entire agreement between you
and the Company with regard to this subject matter. It is entered into without reliance on any promise or representation, written or oral, other than those expressly contained herein, and it supersedes any other such promises, warranties or
representations. This Agreement may not be modified or amended except in a writing signed by both you and a duly authorized officer of the Company. This Agreement will bind the heirs, personal representatives, successors and assigns of both you and
the Company, and inure to the benefit of both you and the Company, their heirs, successors and assigns. If any provision of this Agreement is determined to be invalid or unenforceable, in whole or in part, this determination will not affect any
other provision of this Agreement and the provision in question will be modified by the court so as to be rendered enforceable. This Agreement will be deemed to have been entered into and will be construed and enforced in accordance with the laws of
the Commonwealth of Massachusetts as applied to contracts made and to be performed entirely within Massachusetts. 
 19. To ensure the rapid and
economical resolution of disputes that may arise in connection with your employment with the Company, you and the Company agree that any and all disputes, claims, or causes of action, in law or equity, including but not limited to statutory claims
(including, but not limited to, the Massachusetts Antidiscrimination Act, Mass. Gen. Laws ch.151B and the Massachusetts Wage Act, Mass. Gen. Laws ch. 149), arising from or relating to the enforcement, breach, performance, or interpretation of this
Agreement, your employment with the Company, or the termination of your employment, shall be resolved, to the fullest extent permitted by law, by final, binding and confidential arbitration conducted by JAMS or its successor, under JAMS’ then
applicable rules and procedures for employment disputes (available upon request and also currently available at http://www.jamsadr.com/rules-employment-arbitration/). 

  
 26 

 
You acknowledge that by agreeing to this arbitration procedure, both you and the Company waive the right to resolve any such dispute through a trial by jury or judge or administrative
proceeding. You will have the right to be represented by legal counsel at any arbitration proceeding. The arbitrator shall: (a) have the authority to compel adequate discovery for the resolution of the dispute and to award such relief as
would otherwise be permitted by law; and (b) issue a written statement signed by the arbitrator regarding the disposition of each claim and the relief, if any, awarded as to each claim, the reasons for the award, and the arbitrator’s
essential findings and conclusions on which the award is based. The arbitrator shall be authorized to award all relief that you or the Company would be entitled to seek in a court of law. The Company shall pay all JAMS arbitration fees in excess of
the administrative fees that you would be required to pay if the dispute were decided in a court of law. Nothing in this Agreement is intended to prevent either you or the Company from obtaining injunctive relief in court to prevent irreparable harm
pending the conclusion of any such arbitration. 
 If this Agreement is acceptable to you, please sign below and return the original to me on or after your
Separation Date, but no later than the date that is twenty-one (21) days after you receive this Agreement. This offer will expire if we have not received your executed copy by that date. 

I wish you good luck in your future endeavors. 
 Sincerely, 

Adagio Therapeutics, Inc. 
  

	
	 By: ____________________________________

	 [Name]

	 [Title]

 AGREED TO AND ACCEPTED: 

 

	
	 __________________________________ _____

	 [Name]

  
 27 

 CONSIDERATION PERIOD 

I, ____________________, understand that I have the right to take at least 21 days to consider whether to sign this Agreement, which I received on ___________
__, 20__. If I elect to sign this Agreement before 21 days have passed, I understand I am to sign and date below this paragraph to confirm that I knowingly and voluntarily agree to waive the 21-day
consideration period. 
  

	
	 AGREED:

 

	  
 Signature

 

	Date

  
 28

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