Document:

EX-10.8

 Exhibit 10.8 

CONFIDENTIAL 
 CONSULTING
AGREEMENT 
 This Consulting Agreement (“Agreement”) is entered into and made effective by and between Harpoon Therapeutics, Inc., having its
address at Suite 250, 4000 Shoreline Ct., South San Francisco, CA 94005 (“Company”), and William E Picht, Jr having an address at (“Consultant”). In consideration of the mutual promises and covenants contained herein, and
intending to be legally bound, Company and Consultant agree as follows: 
  

	1.	 SERVICES. Consultant shall perform the following [advisory and] consultative services for the Company and
produce and deliver the following deliverables (the “Services”): financial consulting. Consultant will perform the Services in a professional manner, in accordance with industry standards, using its knowledge of current pharmaceutical
industry practices and of national and international legal and regulatory requirements. In the performance of the Services hereunder, Consultant shall comply with all applicable laws, rules, regulations, guidelines and regulatory requirements,
including without limitation, applicable privacy and protection of personal information laws and anti-fraud, anti-corruption and anti-bribery laws, Consultant’s duties under this Agreement may not be delegated or subcontracted without the
express written permission by Company. To the extent applicable, Consultant will ensure that all of its employees and approved contractors performing Services on behalf of Consultant under this Agreement comply with the terms of this Agreement and
are subject to the same obligations of confidentiality and non-use as Consultant under Section 6, and to assign any Inventions made by such employees and contractors to Consultant, so that Consultant is
able to comply with its obligations under Section 5. All such obligations of Consultant’s employees and contractors shall be in writing. Consultant shall be responsible and liable for the performance and
non-performance of the Services, and any breaches of this Agreement, by its employees and contractors. 

  

	2.	 TERM. This Agreement shall be effective beginning on the last date that both parties have executed below.
Agreement will terminate on March 15, 2019. Company and Consultant may renew this Agreement for six months starting March 16, 2019. If agreement is renewed, only the compensation in section 3a and 3b will be due to Consultant, no bonus
payment under Section 3c will be payable for a second time, This Agreement may be terminated by Company or Consultant at any time and for any reason or no reason. Sections 4, 5, 6 and 12 will survive the termination or expiration of this
Agreement. Termination of this Agreement shall not extinguish or affect any rights or obligations of either party accrued prior to and up to the effective date of termination, and subject to any limitations provided for in this Agreement,
termination shall be in addition to, and not in lieu of, any other rights and remedies the terminating party may have under this Agreement, or at law or equity. 

 

	3.	 COMPENSATION. 

  

	 	a)	 Company shall pay Consultant at the rate of $250 per hour for the Services. 

 

	 	b)	 If Consultant provides a minimum of 10 hours of Services per month, Consultant shall continue to vest his three
outstanding stock option grants until the earlier of the termination of this agreement or when Consultant ceases to provide 10 hours of month of service. 

  

	 	c)	 If Consultant provides a minimum of 10 hours of Services per month thru December 2018, the consultant will be
eligible for a bonus payment of $59,096.00, for which Consultant shall invoice company in January 2019. If Company and Consultant renew this agreement in March 2019 as per section 2, this bonus payment is not again payable. The bonus payment is a one-time payment for Services provided between September 2018 and December 2018. 

  
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 Consultant shall invoice Company monthly by email to AP@Harpoontx.com. Travel time
for trips outside of the San Francisco Bay Area is billable; however, Consultant shall not bill more than 8 hours per day when traveling. Travel outside of the San Francisco Bay Area will be approved in advance by Company. Reasonable, documented
travel expenses incurred while traveling at the request of Company will be reimbursed without mark up by Company. Reimbursable expenses should be submitted to Company separately from consulting fees. Other than the payment for Services and
reimbursement for expenses expressly provided for in this Section 3, Consultant will receive no other remuneration resulting from or based upon the Services or any deliverables, products or other work product provided to Company. 

 

	4.	 LIMITATION OF LIABILITY. Neither party shall be liable to the other party for special. indirect, incidental,
consequential, exemplary or punitive damages of any nature (including without limitation, loss of profits or loss of use), for any reason, whether such liability is asserted on the basis of contract, tort, strict liability or otherwise, even if a
party knew or should have known of the possibility of such losses or damages. This limitation on liability shall not apply with respect to Consultant’s breach of Consultant’s obligations under Section 6 (Confidentiality).

  

	5.	 INDEMNIFCATION. Consultant and Company previously executed an indemnification agreement on 27 April 2017,
“Indemnification Agreement”. This parties agree that Consultant’s services provided under this Consulting Agreement will be included in and subject to the Indemnification Agreement. 

 

	6.	 INTELLECTUAL PROPERTY RIGHTS. All ideas, information, recommendations, advice, inventions, improvements,
discoveries, work product, deliverables, reports, results, documents, programs (including computer programs and source and object code) and data, in whatever form, whether patentable or not, that are made, conceived or reduced to practice by or on
behalf of Consultant, whether alone or in conjunction with others, in the course of or as a result of the performance of Services hereunder (“Inventions”), together with all intellectual property rights therein including enforcement
rights, shall become the sole property of Company upon their creation. Consultant shall promptly disclose any and all Inventions to Company in writing. Without additional consideration, Consultant hereby assigns to Company all right, title and
interest in and to all Inventions, together with all intellectual property rights therein including enforcement rights, and shall cause any employees and contractors to do the same, Consultant agrees to assist Company. at Company’s expense, to
execute any further documents and take all other steps that may be necessary or appropriate to confirm the assignment of inventions and to allow Company to obtain, maintain, or enforce patent or other intellectual property rights in any Inventions,
including assisting with the preparation and prosecution of covering patent applications, and executing any documents necessary to assign title in such applications to Company. Company will compensate Consultant for its reasonable time spent to
perform such activities at the same hourly rate payable for Services performed hereunder, and will reimburse any reasonable, documented out-of-pocket expenses incurred
by Consultant to perform such activities during the term of this Agreement. No rights or licenses, including with respect to any Inventions or Confidential Information, or any other intellectual property rights of Company, are granted by Company to
Consultant, whether by implication, estoppel or otherwise, and Company specifically reserves all such rights. 

  
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	7.	 CONFIDENTIALITY. All information in whatever form that (i) is disclosed or made available to Consultant by
or on behalf of Company, or (ii) is obtained, generated, developed or prepared by or on behalf of Consultant as a result of performing Services under this Agreement (including Inventions) will be deemed to be “Confidential
Information”. Confidential Information also includes any and all copies and derivations of and improvements on Confidential Information. Confidential Information is and shall remain solely owned by Company. Consultant agrees to keep all
Confidential Information in confidence and will not disclose such Confidential Information to others or use it for the benefit of others or for Consultant’s own benefit, other than in providing Services to Company hereunder, without prior
written permission of Company. Consultant shall not use any Confidential Information to apply for, secure or perfect any intellectual property rights. Such obligations of confidentiality and non-use shall
terminate ten (10) years from the expiration or termination of this Agreement. Consultant shall not be obligated to maintain the confidentiality of Confidential Information if such information (a) is or becomes a matter of public knowledge
through no fault of Consultant, (b) was rightfully in Consultant’s possession without obligations of confidentiality before receipt from the Company, as demonstrated by written records, or (c) is rightfully received by the Consultant
from a third party without a duty of confidentiality, as demonstrated by written records. Consultant may disclose Confidential Information without violating the obligations of this Agreement to the extent that such disclosure is required by a valid
order of a court or other governmental body having jurisdiction, or by applicable law or regulation; provided that, in each case, Consultant provides Company with reasonable prior written notice of such disclosure and makes a reasonable effort to
obtain, or to assist Company in obtaining, a protective order, confidential treatment or other appropriate remedy preventing or limiting the disclosure and/or requiring that Confidential information so disclosed be used only for the purposes for
which the order was issued or for which the law or regulation requires. Upon the expiration or termination of this Agreement, or at the Company’s request, Consultant shall return all Confidential Information to Company. 

18 U.S.C. § 1833(b) Notice. Consultant acknowledges that Company hereby notifies Consultant that 18 U.S.C. § I 833(b) states
as follows: 
 “An individual shall not be held criminally or civilly liable under any Federal or State trade secret law for the
disclosure of a trade secret that—(A) is made—(i) in confidence to a Federal, State, or local government official, either directly or indirectly, or to an attorney; and (ii) solely for the purpose of reporting or investigating a
suspected violation of law; or (B) is made in a complaint or other document filed in a lawsuit or other proceeding, if such filing is made under seal.” 

Accordingly, Consultant understands and acknowledges that, notwithstanding anything to the contrary in this Agreement, Consultant has the right
to disclose in confidence trade secrets to Federal, State, and local government officials, or to an attorney, for the sole purpose of reporting or investigating a suspected violation of law. Consultant also has the right to disclose trade secrets in
a document filed in a lawsuit or other proceeding, but only if the filing is made under seal and protected from public disclosure. Nothing in this Agreement is intended to conflict with 18 U.S.C. § 1833(b) or create liability for disclosures of
trade secrets that are expressly allowed by 18 U.S.C. § 1833(b). 
  

	8.	 INDEPENDENT CONTRACTOR. Consultant’s relationship to Company shall be as an independent contractor and not
as an employee. Under this Agreement, Consultant shall not be considered as having an employee status and shall not be entitled to participate in nor be eligible for any benefits accorded to Company’s employees. Consultant shall not bind
Company in any 

  
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way. Consultant shall be solely responsible for determining the method, details and means of performing the Services. Consultant shall be fully responsibility for applicable withholding taxes for
all compensation paid to Consultant hereunder and for compliance with all applicable labor and employment requirements with respect to Consultant’s self-employment, sole proprietorship or other form of business organization including state
worker’s compensation insurance coverage requirements and any US immigration visa requirements. 

  

	9.	 VOLUNTARY AGREEMENT. Each party acknowledges that it has voluntarily entered into this Agreement, has had the
opportunity to consult with an attorney with respect to this Agreement, and understands and agrees with the terms of this Agreement. 

  

	10.	 ENTIRE AGREEMENT. This Agreement contains the complete statement of the agreement between the parties with
regard to the consulting relationship and it supersedes all prior proposals or agreements, written or oral, between the parties. This Agreement cannot be modified or altered except by written documentation duly executed by both parties.

  

	11.	 DEBARMENT. Consultant certifies, represents and warrants that it has never been, and it will not employ,
contract with, or retain any person or entity directly or indirectly to perform services hereunder if such a person or entity, as applicable, has ever been debarred by the FDA or any other regulatory authority under any governmental statute
(including 21 USC Section 335a, as amended) or convicted of a crime for which a person or entity can be debarred under any governmental statute. If, during the term of this Agreement, Consultant or any other person or entity directly or
indirectly performing services hereunder is debarred or convicted of a crime for which a person or entity can be debarred or, to Consultant’s knowledge, comes under investigation by the FDA or any other governmental agency for debarment,
Consultant will immediately notify Company of same. 

  

	12.	 NO CONFLICTS. Consultant represents and warrants that (i) Consultant is not under any pre-existing obligation in conflict or in any way inconsistent with the provisions of this Agreement, (ii) Consultant’s performance under this Agreement will not breach any agreement to keep in confidence
any proprietary information acquired by Consultant in confidence or in trust prior to commencement of this Agreement, (iii) Consultant has the right to disclose and/or or use all ideas, processes, techniques and other information, if any, which
Consultant has gained from third parties, and which Consultant discloses to the Company or uses in the course of performance of Services under this Agreement, without liability to such third parties, (iv) Consultant has not granted and will not
grant any rights or licenses to any intellectual property or technology that would conflict with Consultant’s obligations under this Agreement, and (v) Consultant will not knowingly infringe upon or misappropriate any copyright, patent,
trade secret or other intellectual property right of any former client, employer or third party in the performance of the Services under this Agreement. Notwithstanding the foregoing, Consultant agrees that Consultant shall not disclose to Company,
or bundle with or incorporate into any of the Services, any third party confidential information or any third party products, ideas, processes, or other techniques, without the express, written prior approval of the Company. 

 

	13.	 GOVERNING LAW. All matters affecting the interpretation, validity and performance of this Agreement shall be
governed by the laws of the State of California, without regard or giving effect to its or any other jurisdiction’s principles of conflicts of law. 

  

	14.	 SEVERABILITY AND WAIVER. If any court of competent jurisdiction finds that any provision of this Agreement (or
part of any provision) is invalid, illegal or unenforceable, that provision or part-provision shall, to the extent required, be deemed to be deleted, and the validity and enforceability of the other provisions of this Agreement shall not be
affected. No failure or delay by either party in exercising any right or remedy under this Agreement shall constitute a waiver of such right, nor shall it prevent or restrict its further exercise. 

  
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	Consultant:	 	 	 	 	 	Harpoon Therapeutics, Inc.	 	 	 	 
						
	 /s/ William E.
Picht                
	 	 12 Sept 2018
	 		 	 /s/ Gerald
McMahon                            
	 	9/12/18	 	
		 	 Date
	 		 	 Signature
	 	Date	 	

  

							
			
	 William E. Picht
	 		  	 Gerald McMahon

	 Printed Name
	 		  	 Printed Name

  
 5EX-10.9

 Exhibit 10.9 

HARPOON, INC. 
 THIRD AMENDED
AND RESTATED CONSULTING AGREEMENT 
 THIS THIRD AMENDED AND RESTATED CONSULTING AGREEMENT dated as of February 1, 2017 amends and
restates the Second Amended and Restated Consulting Agreement dated February 1, 2016, as amended by the letter agreement dated November 1, 2016 and the letter agreement dated January 1, 2017, entered into by Harpoon, Inc., a Delaware
corporation (the “Company”), and Patrick Baeuerle (the “Consultant”). 
 INTRODUCTION 

The Company desires to retain the services of the Consultant and the Consultant desires to perform certain services for the Company. In
consideration of the mutual covenants and promises contained herein and other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged by the parties hereto, the parties agree as follows: 

1. Services. 
 1.1 During
the Consultation Period (as defined herein), the Consultant agrees to perform, as a Senior Advisor to Company, such consulting, advisory and related services to and for the Company as may be reasonably requested from time to time by the Company (the
“Services”). Consultant agrees that the Company may, at its discretion, publicize the fact that Consultant is providing Services to the Company by featuring his biography on the Company’s website (if any) and in marketing material
relating to the Company and/or its affiliates. During the time Consultant is providing Services, he and the Company shall refer to his position as “Senior Advisor”. 

1.2 The Company acknowledges that the Consultant is concurrently providing consulting services for MPM Asset Management LLC (“MPM”),
MPM Oncology Impact Management LP (“OIM”) and other portfolio companies affiliated with MPM and OIM (including, without limitation, TCR2, Inc. and Maverick Therapeutics, Inc.), separate and apart from his Services to the Company. It is
understood and agreed that Consultant’s Services under this Agreement will be consistent with Consultant’s obligations to MPM, OIM and such other MPM and OIM--affiliated portfolio companies;
provided, however, that Consultant shall use his reasonable best efforts and all due diligence in performing the Services. 
 2.
Compensation. 
 2.1 Consulting Fees. The consideration described below in this Section 2.1 constitutes the full
consideration for the consulting services to be provided by the Consultant to the Company. Consultant’s compensation from Company shall be reviewed on an annual basis. 

(a) The Company shall pay to the Consultant consulting fees of US$8,333 per month, which shall be payable monthly on the last day of each
month in Euros using the conversion rate of USD to Euros at the time of such payment. Consultant shall not be eligible for an annual bonus paid by Company. Consultant will be eligible for up to 50% (up to US$32,500) of Company’s remaining fund
raising bonus pool (US$65,000) if a successful Series B raise for the Company is completed, in the Board’s sole discretion. Key success factors for determination of a successful Series B raise include size (at least US$35M), timing (close
before April 15, 2017), and price (at least $1.20/sh), among other factors as determined by the Board. 

  
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 2.2 Reimbursement of Expenses. The Company shall reimburse the Consultant for all
reasonable and necessary expenses incurred or paid by the Consultant in connection with, or related to, the performance of his services under this Agreement. The Consultant shall submit to the Company itemized monthly statements, in a form
satisfactory to the Company, of such expenses incurred in the previous month. The Company shall pay to the Consultant amounts shown on each such statement within 30 days after receipt thereof. Notwithstanding the foregoing, the Consultant shall not
incur total expenses in excess of US$1,000 per month without the prior written approval of the Company. 
 2.3 Benefits. The
Consultant shall not be entitled to any benefits, coverages or privileges, including, without limitation, social security, unemployment, medical or pension payments, made available to employees of the Company. 

3. Term and Termination. 

3.1 This Agreement shall commence upon the date hereof (the “Effective Date”) and shall continue until the first anniversary of the
Effective Date, after which it shall automatically extend for additional one-year periods (such period, as it may be extended, being referred to as the “Consultation Period”), and unless sooner
terminated by either Party in accordance with the provisions of Section 3.2. 
 3.2 Without limiting any rights which either party to
this Agreement may have by reason of any default by the other party (which shall include the right to terminate this Agreement for Cause (as defined herein) as well as any other remedies that may be available at law or in equity), each party
reserves the right to terminate this Agreement at its convenience by written notice given to the other party. Such termination shall be effective upon the date not earlier than 30 days following the date of such notice as shall be specified in said
notice. 
 3.3 Sections 3 through 15 hereof shall survive termination or expiration of this Agreement, unless otherwise explicitly provided
herein. In addition, termination of this Agreement shall not affect the Company’s obligation to pay for services previously performed by the Consultant or expenses reasonably incurred by the Consultant for which the Consultant is entitled to
reimbursement under Section 2.2, above. 
 4. Cooperation. The Consultant shall use his best efforts in the performance of his
obligations under this Agreement. The Company shall provide such access to its information and property as may be reasonably required in order to permit the Consultant to perform his obligations hereunder. The Consultant shall cooperate with the
Company’s personnel, shall not interfere with the conduct of the Company’s business and shall observe all rules, regulations and security requirements of the Company concerning the safety of persons and property. 

5. Non-Competition. During the Consultation Period, the Consultant shall not, either or alone
or in association with others, directly or indirectly provide services for other commercial entities that are not affiliated with MPM. 

  
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 6. Inventions and Proprietary Information. 

6.1 Inventions. Except for Maverick Inventions and Maverick Joint Patents (each, as defined in Exhibit A), all inventions, discoveries,
computer programs, data, technology, designs, innovations and improvements (whether or not patentable and whether or not copyrightable) which are made, conceived, reduced to practice, created, written, designed or developed by the Consultant, solely
or jointly with others and whether during normal business hours or otherwise, during the Consultation Period if related to the business of the Company (collectively, “Inventions”), shall be the sole property of the Company. Without
limiting the generality of the foregoing, it is understood and agreed that “Inventions” shall include any of the foregoing inventions, discoveries, computer programs, data, technology, designs, innovations and improvements that arise from
the Consultant’s performance of services for the Company or from the use of the Company’s Proprietary Information, but in any event shall not include any Maverick Inventions or Maverick Joint Patents. The Consultant hereby assigns and
agrees to assign to the Company all Inventions and any and all related patents, copyrights, trademarks, trade names, and other industrial and intellectual property rights and applications therefor, in the United States and elsewhere and appoints any
officer of the Company as his duly authorized attorney to execute, file, prosecute and protect the same before any government agency, court or authority. Upon the request of the Company and at the Company’s expense, the Consultant shall execute
such further assignments, documents and other instruments as may be necessary or desirable to fully and completely assign all Inventions to the Company and to assist the Company in applying for, obtaining and enforcing patents or copyrights or other
rights in the United States and in any foreign country with respect to any Invention. The Consultant also hereby waives all claims to moral rights in any Inventions. 

6.2 Proprietary Information. 

(a) The Consultant acknowledges that his relationship with the Company is one of high trust and confidence and that in the course of his
service to the Company he will have access to and contact with Proprietary Information. The Consultant agrees that he will not, during the Consultation Period or at any time thereafter, disclose to others, or use for his benefit or the benefit of
others, any Proprietary Information or Invention. 
 (b) For purposes of this Agreement, Proprietary Information shall mean, by way of
illustration and not limitation, all information (whether or not patentable and whether or not copyrightable) owned, possessed or used by the Company, including, without limitation, any Invention, formula, vendor information, customer information,
apparatus, equipment, trade secret, process, research, report, technical data, know-how, computer program, software, software documentation, hardware design, technology, marketing or business plan, forecast,
unpublished financial statement, budget, license, price, cost and employee list that is communicated to, learned of, developed or otherwise acquired by the Consultant in the course of his service as a consultant to the Company. 

(c) The Consultant’s obligations under this Section 6.2 shall not apply to any information that (i) is or becomes known to the
general public under circumstances involving no breach by the Consultant or others of the terms of this Section 6.2, (ii) is generally disclosed to third parties by the Company without restriction on such third parties, or (iii) is
approved for release by written authorization of the Board of Directors of the Company. 

  
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 (d) Upon termination of this Agreement or at any other time upon request by the Company,
the Consultant shall promptly deliver to the Company all records, files, memoranda, notes, designs, data, reports, price lists, customer lists, drawings, plans, computer programs, software, software documentation, sketches, laboratory and research
notebooks and other documents (and all copies or reproductions of such materials) relating to the business of the Company (except for any such items within the scope of Maverick Inventions and Maverick Joint Patents). 

(e) The Consultant represents that his retention as a consultant with the Company and his performance under this Agreement does not, and
shall not, breach any agreement that obligates him to keep in confidence any trade secrets or confidential or proprietary information of his or of any other party or to refrain from competing, directly or indirectly, with the business of any other
party. The Consultant shall not disclose to the Company any trade secrets or confidential or proprietary information of any other party. 

6.3 Remedies. The Consultant acknowledges that any breach of the provisions of this Section 6 shall result in serious and
irreparable injury to the Company for which the Company cannot be adequately compensated by monetary damages alone. The Consultant agrees, therefore, that, in addition to any other remedy it may have, the Company shall be entitled to enforce the
specific performance of this Agreement by the Consultant and to seek both temporary and permanent injunctive relief (to the extent permitted by law) without the necessity of proving actual damages. 

6.4 Segregation. Consultant agrees to use his best efforts: (A) to segregate the Services performed under this Agreement from
Consultant’s work done for any third party so as to minimize any questions of disclosure of: or rights under, any inventions; (B) to notify the Chief Executive Officer or the Board of Directors of Company in writing if at any time
Consultant believes that such questions may result from his performance under this Agreement; and (C) to assist Company in fairly resolving any questions in this regard which may arise. The Services performed hereunder will not be conducted on
time that is required to be devoted to any other third party. Consultant shall not use the funding, resources and facilities of any other third party, without the prior written consent of Company, to perform Services hereunder and shall not perform
the Services hereunder in any manner that would give any third party rights or access to any work product of such Services. 
 6.5 No
License. Nothing in this Agreement is intended to grant any rights to Consultant under any patent or copyright of Company, nor shall this Agreement grant Consultant any rights in or to Proprietary Information except as expressly set forth in
this Agreement. 
 7. Defense and Indemnification. The Company agrees, at its sole expense, to defend Consultant against, and to
indemnify and hold Consultant harmless from, any liability, claim, judgment, cost, expense, damage, deficiency, loss, or obligation, of any kind or nature (including without limitation reasonable attorneys’ fees and other costs and expenses of
defense) relating to a claim or suit by a third party against Consultant, either arising from this Agreement, the Consultant’s performance of services for the Company under this Agreement, or any Company products or services which result from
the Consultant’s performance of services under this Agreement. 

  
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 8. Independent Contractor Status. The Consultant shall perform all services under
this Agreement as an “independent contractor” and not as an employee or agent of the Company. Consultant is free to determine the time and place of the Services to be provided under this Agreement. Consultant warrants to perform his
obligations under this Agreement with the usual standard of diligence but does not guarantee the achievement of any specific commercial objectives. The Consultant is not authorized to assume or create any obligation or responsibility, express or
implied, on behalf of, or in the name of, the Company or to bind the Company in any manner. 
 9. Notices. All notices required or
permitted under this Agreement shall be in writing and shall be deemed effective upon personal delivery or upon deposit in the United States Post Office, by registered or certified mail, postage prepaid, addressed to the other party at the address
shown above, or at such other address or addresses as either party shall designate to the other in accordance with this Section 9. 

10. Pronouns. Whenever the context may require, any pronouns used in this Agreement shall include the corresponding masculine, feminine
or neuter forms, and the singular forms of nouns and pronouns shall include the plural, and vice versa. 
 11. Entire Agreement. This
Agreement and the Stock Agreement constitute the entire agreement between the parties and supersedes all prior agreements and understandings, whether written or oral, relating to the subject matter of this Agreement. 

12. Amendment. This Agreement may be amended or modified only by a written instrument executed by both the Company and the Consultant.

 13. Governing Law. This Agreement shall be construed, interpreted and enforced in accordance with the laws of the Commonwealth of
Massachusetts. 
 14. Successors and Assigns. This Agreement shall be binding upon, and inure to the benefit of, both parties and
their respective successors and assigns, including any corporation with which, or into which, the Company may be merged or which may succeed to its assets or business, provided, however, that the obligations of the Consultant are personal and shall
not be assigned by him. 
 15. Miscellaneous. 

15.1 No delay or omission by the Company in exercising any right under this Agreement shall operate as a waiver of that or any other right. A
waiver or consent given by the Company on any one occasion shall be effective only in that instance and shall not be construed as a bar or waiver of any right on any other occasion. 

  
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 15.2 The captions of the sections of this Agreement are for convenience of reference only
and in no way define, limit or affect the scope or substance of any section of this Agreement. 
 15.3 In the event that any provision of
this Agreement shall be invalid, illegal or otherwise unenforceable, the validity, legality and enforceability of the remaining provisions shall in no way be affected or impaired thereby. 

  
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 IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the day and year
set forth above. 
  

			
	HARPOON, INC.
		
	By: 	 	/s/ Gerald McMahon
		 	Gerald McMahon, PhD
	
	Title: CEO & President
	
	CONSULTANT
		
	By: 	 	/s/ Patrick Baeuerle
		 	Patrick Baeuerle, PhD

  
 7 

 Harpoon, Inc. 

4th Amended and Restated Consulting Agreement 

This FOURTH AMENDED AND RESTATED CONSULTING AGREEMENT, dated as of March 5. 2018 amends and restates the Third Amended and Restated Consulting Agreement dated
February 01, 2017, as amended by the Second Amended and Restated Consulting Agreement dated Feb 01, 2016 as amended by the letter agreement dated November 01, 2016 and the letter agreement dated January 01, 2017 entered into by Harpoon Inc., a
Delaware corporation (the “Company’’) and Patrick Baeuerle (the “Consultant”) 
 1) Amendment of The 3rd Amended and Restated Consulting Agreement 
 Section 2.1(a) of the 3rd Amended and Restated Consulting Agreement is hereby amended in its entirety to read as follows: Company will make a payment of Euro 21,260 on March 30, 2018 such that Consultant will have
received a total of 125,000 Euro in consulting fees for the period January 01 2017 through March 30. 2018. Beginning April 30, 2018 and monthly until the Consultation Period is terminated, Company shall pay the Consultant consulting fees of
Euro 8,333 per month, which shall be payable on the last day of the month. Consultant will not be eligible for an annual bonus. Company and Consultant acknowledge that Consultant was paid the EURO equivalent of USD 32,500 in December 2017 for his
participation in the Company’s Series B fund raising effort. 
 2) Miscellaneous. 

Except as expressly amended herein. the ATA shall remain in full force and effect. 

This Amendment shall be governed by, and construed in accordance with, the substantive law of the State of Delaware, regardless of the laws that might
otherwise govern under applicable principles of conflicts of laws thereof. 
 This Amendment may be executed in one or more counterparts, all of which shall
be considered one and the same instrument, and shall become effective when one or more counterparts have been signed by each Party and delivered to the other Party, it being understood that both Parties need not sign the same counterpart.
Counterpart signature pages delivered via facsimile or e-mail in PDF or similar electronic format shall be deemed binding as originals. 

 

									
	CONSULTANT	 		 	HARPOON THERAPEUTICS, INC.
					
	By:	 	/s/ Patrick Baeuerle	 		 	By:	 	/s/ William E. Picht
	Name:	 	March 2, 2018	 		 	Name:	 	William E. Picht
		 		 		 	Title:	 	CFO

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