EX-10.1





 Exhibit 10.1 

________, 2021 
 LifeSci Acquisition III Corp.

 250 W. 55th St., #3401 
 New York, NY 10019 

LifeSci Capital LLC 
 250 W. 55th St., #3401 

New York, NY 10019 
 Ladenburg Thalmann & Co. Inc. 

277 Park Avenue, 26th Floor 
 New York, NY 10172 

 

	 	Re:	 Initial Public Offering 



Ladies and Gentlemen: 
 This letter is being
delivered to you in accordance with the Underwriting Agreement (the “Underwriting Agreement”) entered into by and between LifeSci Acquisition III Corp., a Delaware corporation (the “Company”) and
LifeSci Capital LLC and Ladenburg Thalmann & Co., as representatives (the “Representatives”) of the Underwriters named in Schedule A thereto (the “Underwriters”), relating to an underwritten
initial public offering (the “IPO”) of the Company’s shares of Common Stock of the Company, par value $0.0001 per share (the “Common Stock”). Certain capitalized terms used herein are defined in
paragraph 14 hereof. 
 In order to induce the Company and the Underwriters to enter into the Underwriting Agreement and to proceed with the
IPO, and in recognition of the benefit that such IPO will confer upon the undersigned as a shareholder of the Company, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the undersigned
hereby agrees with the Company as follows: 
 1. If the Company solicits approval of its shareholders of a Business Combination, the
undersigned will vote all shares of Common Stock beneficially owned by him, her or it, whether acquired before, in or after the IPO, in favor of such Business Combination. 

2. (a) In the event that the Company fails to consummate a Business Combination within 24 months from the closing of the Company’s IPO,
the undersigned shall take all reasonable steps to (i) cause the Trust Fund to be liquidated and distributed to the holders of IPO Shares and (ii) cause the Company to liquidate as soon as reasonably practicable. 












 (b) The undersigned hereby waives any and all right, title, interest or claim of any kind
in or to any distribution of the Trust Fund and any remaining net assets of the Company as a result of such liquidation with respect to his, her or its Insider Shares, [Private Warrants] (and the underlying Common Stock)
(“Claim”) and hereby waives any Claim the undersigned may have in the future as a result of, or arising out of, any contracts or agreements with the Company and will not seek recourse against the Trust Fund for any reason
whatsoever. The undersigned acknowledges and agrees that there will be no distribution from the Trust Fund with respect to any Common Stock underlying the Private Warrants, all rights of which will terminate on the Company’s liquidation. 

[                          
   (c) In the event of the liquidation of the Trust Fund, the undersigned agrees to indemnify and hold harmless the Company against any and all loss, liability, claims, damage and expense whatsoever (including, but not limited to, any and
all legal or other expenses reasonably incurred in investigating, preparing or defending against any litigation, whether pending or threatened, or any claim whatsoever) which the Company may become subject as a result of any claim by any vendor or
other person who is owed money by the Company for services rendered or products sold or contracted for, but only to the extent necessary to ensure that such loss, liability, claim, damage or expense does not reduce the amount of funds in the Trust
Fund; provided, that such indemnity shall not apply if such vendor or other person has executed an agreement waiving any claims against the Trust Fund. ]1 

[                          
   (d) In the event that the Company does not consummate a Business Combination and must liquidate and its remaining net assets are insufficient to complete such liquidation, the undersigned agrees to advance such funds necessary to
complete such liquidation and agrees not to seek repayment for such expenses.] 2 

3. The undersigned will escrow all of his, her or its Insider Shares pursuant to the terms of a Stock Escrow Agreement which the Company will
enter into with the undersigned and an escrow agent acceptable to the Company. 
 [4. The undersigned agrees that until the Company
consummates a Business Combination, the undersigned’s Private Warrants will be subject to the transfer restrictions described in the Subscription Agreement relating to the undersigned’s Private Warrants.] 3 
 5. In order to minimize potential
conflicts of interest which may arise from multiple affiliations, the undersigned agrees to present to the Company for its consideration, prior to presentation to any other person or entity, any suitable opportunity to acquire a target business,
until the earlier of the consummation by the Company of a Business Combination or the liquidation of the Company, subject to any pre-existing fiduciary and contractual obligations the undersigned might have.

  

	1 	 Only for LifeSci Holdings LLC 



	2 	 Only for LifeSci Holdings LLC 



	3 	 Only for LifeSci Holdings LLC 














 6. The undersigned acknowledges and agrees that prior to entering into a Business
Combination with a target business that is affiliated with any Insiders of the Company or their affiliates, including any company that is a portfolio company of, or otherwise affiliated with, or has received financial investment from, an entity with
which any Insider or their affiliates is affiliated, such transaction must be approved by a majority of the Company’s disinterested independent directors and the Company must obtain an opinion from an independent investment banking firm that
such Business Combination is fair to the Company’s unaffiliated shareholders from a financial point of view. 
 7. Neither the
undersigned, any member of the family of the undersigned, nor any affiliate of the undersigned will be entitled to receive and will not accept any compensation or other cash payment prior to, or for services rendered in connection with, the
consummation of the Business Combination. Notwithstanding the foregoing, the undersigned and any affiliate of the undersigned shall be entitled to reimbursement from the Company for their out-of-pocket expenses incurred in connection with identifying, investigating and consummating a Business Combination. 

8. Neither the undersigned, any member of the family of the undersigned, nor any affiliate of the undersigned will be entitled to receive or
accept a finder’s fee or any other compensation in the event the undersigned, any member of the family of the undersigned or any affiliate of the undersigned originates a Business Combination. 

9. [The undersigned agrees to be the [•] of the Company until the earlier of the consummation by the Company of a Business Combination or
the liquidation of the Company. The undersigned’s biographical information previously furnished to the Company and the Representatives is true and accurate in all material respects, does not omit any material information with respect to the
undersigned’s biography and contains all of the information required to be disclosed pursuant to Item 401 of Regulation S-K, promulgated under the Securities Act of 1933.]4 The undersigned’s FINRA Questionnaire and Director and Officer Questionnaire previously furnished to the Company and the Representatives is true and accurate in all material respects. The
undersigned represents and warrants that, except as disclosed in the undersigned’s Director and Officer Questionnaire: 
  

	 	(a)	 he/she/it has never had a petition under the federal bankruptcy laws or any state insolvency law been filed by
or against (i) him/her/it or any partnership in which he/she/it was a general partner at or within two years before the time of filing; or (ii) any corporation or business association of which he/she/it was an executive officer at or
within two years before the time of such filing; 


  

	 	(b)	 he/she/it has never had a receiver, fiscal agent or similar officer been appointed by a court for his/her/its
business or property, or any such partnership; 


  

	 	(c)	 he/she/it has never been convicted of fraud in a civil or criminal proceeding; 



 
  

	4 	 Only for officers and directors 















	 	(d)	 he/she/it/ has never been convicted in a criminal proceeding or named the subject of a pending criminal
proceeding (excluding traffic violations and minor offenses); 


  

	 	(e)	 he/she/it has never been the subject of any order, judgment or decree, not subsequently reversed, suspended or
vacated, of any court of competent jurisdiction, permanently or temporarily enjoining or otherwise limiting him/her/it from (i) acting as a futures commission merchant, introducing broker, commodity trading advisor, commodity pool operator,
floor broker, leverage transaction merchant, any other person regulated by the Commodity Futures Trading Commission (“CFTC”) or an associated person of any of the foregoing, or as an investment adviser, underwriter, broker or dealer in
securities, or as an affiliated person, director or employee of any investment company, bank, savings and loan association or insurance company, or from engaging in or continuing any conduct or practice in connection with any such activity; or
(ii) engaging in any type of business practice; or (iii) engaging in any activity in connection with the purchase or sale of any security or commodity or in connection with any violation of federal or state securities or federal
commodities laws; 


  

	 	(f)	 he/she/it has never been the subject of any order, judgment or decree, not subsequently reversed, suspended or
vacated, of any federal or state authority barring, suspending or otherwise limiting for more than 60 days his/her/its right to engage in any activity described in 9(e)(i) above, or to be associated with persons engaged in any such activity;



  

	 	(g)	 he/she/it has never been found by a court of competent jurisdiction in a civil action or by the SEC to have
violated any federal or state securities law, where the judgment in such civil action or finding by the SEC has not been subsequently reversed, suspended or vacated; 



 

	 	(h)	 he/she/it has never been found by a court of competent jurisdiction in a civil action or by the CFTC to have
violated any federal commodities law, where the judgment in such civil action or finding by the CFTC has not been subsequently reversed, suspended or vacated; 



 

	 	(i)	 he/she/it has never been the subject of, or a party to, any Federal or State judicial or administrative order,
judgment, decree or finding, not subsequently reversed, suspended or vacated, relating to an alleged violation of (i) any Federal or State securities or commodities law or regulation, (ii) any law or regulation respecting financial
institutions or insurance companies including, but not limited to, a temporary or permanent injunction, order of disgorgement or restitution, civil money penalty or temporary or permanent cease-and desist
order, or removal or prohibition order or (iii) any law or regulation prohibiting mail or wire fraud or fraud in connection with any business entity; 















	 	(j)	 he/she/it has never been the subject of, or party to, any sanction or order, not subsequently reversed,
suspended or vacated, or any self-regulatory organization, any registered entity, or any equivalent exchange, association, entity or organization that has disciplinary authority over its members or persons associated with a member;



  

	 	(k)	 he/she/it has never been convicted of any felony or misdemeanor: (i) in connection with the purchase or
sale of any security; (ii) involving the making of any false filing with the SEC; or (iii) arising out of the conduct of the business of an underwriter, broker, dealer, municipal securities dealer, investment advisor or paid solicitor of
purchasers of securities; 


  

	 	(l)	 he/she/it was never subject to a final order of a state securities commission (or an agency of officer of a
state performing like functions); a state authority that supervises or examines banks, savings associations, or credit unions; a state insurance commission (or an agency or officer of a state performing like functions); an appropriate federal
banking agency; the CFTC; or the National Credit Union Administration that is based on a violation of any law or regulation that prohibits fraudulent, manipulative, or deceptive conduct; 



 

	 	(m)	 he/she/it has never been subject to any order, judgment or decree of any court of competent jurisdiction, that,
at the time of such sale, restrained or enjoined him/her/it from engaging or continuing to engage in any conduct or practice: (i) in connection with the purchase or sale of any security; (ii) involving the making of any false filing with
the SEC; or (iii) arising out of the conduct of the business of an underwriter, broker, dealer, municipal securities dealer, investment adviser or paid solicitor of purchasers of securities; 



 

	 	(n)	 he/she/it has never been subject to any order of the SEC that orders him/her/it to cease and desist from
committing or causing a future violation of: (i) any scienter-based anti-fraud provision of the federal securities laws, including, but not limited to, Section 17(a)(1) of the Securities Act, Section 10(b) of the Exchange Act and Rule
10b-5 thereunder, and Section 206(1) of the Advisers Act or any other rule or regulation thereunder; or (ii) Section 5 of the Securities Act; 



 

	 	(o)	 he/she/it has never been named as an underwriter in any registration statement or Regulation A offering
statement filed with the SEC that was the subject of a refusal order, stop order, or order suspending the Regulation A exemption, or is, currently, the subject of an investigation or proceeding to determine whether a stop order or suspension order
should be issued; 















	 	(p)	 he/she/it has never been subject to a United States Postal Service false representation order, or is currently
subject to a temporary restraining order or preliminary injunction with respect to conduct alleged by the United States Postal Service to constitute a scheme or device for obtaining money or property through the mail by means of false
representations; 


  

	 	(q)	 he/she/it is not subject to a final order of a state securities commission (or an agency of officer of a state
performing like functions); a state authority that supervises or examines banks, savings associations, or credit unions; a state insurance commission (or an agency or officer of a state performing like functions); an appropriate federal banking
agency; the CFTC; or the National Credit Union Administration that bars the undersigned from: (i) association with an entity regulated by such commission, authority, agency or officer; (ii) engaging in the business of securities, insurance
or banking; or (iii) engaging in savings association or credit union activities; 


  

	 	(r)	 he/she/it is not subject to an order of the SEC entered pursuant to section 15(b) or 15B(c) of the Securities
Exchange Act of 1934 (the “Exchange Act”) or section 203(e) or 203(f) of the Investment Advisers Act of 1940 (the “Advisers Act”) that: (i) suspends or revokes the undersigned’s registration as a broker, dealer,
municipal securities dealer or investment adviser; (ii) places limitations on the activities, functions or operations of, or imposes civil money penalties on, such person; or (iii) bars the undersigned from being associated with any entity
or from participating in the offering of any penny stock; and 


  

	 	(s)	 he/she/it has never been suspended or expelled from membership in, or suspended or barred from association with
a member of, a securities self-regulatory organization (e.g., a registered national securities exchange or a registered national or affiliated securities association) for any act or omission to act constituting conduct inconsistent with just and
equitable principles of trade. 


 10. The undersigned has full right and power, without violating any agreement by which he
is bound, to enter into this letter agreement and to serve as [•] of the Company. 
 11. The undersigned hereby waives his, her or its
right to exercise conversion rights with respect to any shares of Common Stock owned or to be owned by the undersigned, directly or indirectly, whether purchased by the undersigned prior to the IPO, in the IPO or in the aftermarket, and agrees that
he, she or it will not seek conversion with respect to or otherwise sell, such shares in connection with any vote to approve a Business Combination with respect thereto, a vote to amend the provisions of the Company’s Amended and Restated
Certificate of Incorporation, or a tender offer by the Company prior to a Business Combination. 
 12. The undersigned hereby agrees to not
propose, or vote in favor of, an amendment to the Company’s Amended and Restated Certificate of Incorporation with respect to the Company’s pre-Business Combination activities prior to the
consummation of a Business Combination unless the Company offers holders of IPO Shares the right to receive their pro rata portion of the funds then held in the Trust Fund. 












 13. In connection with Section 5-1401 of the
General Obligations Law of the State of New York, this letter agreement shall be governed by, and construed in accordance with, the laws of the State of New York without regard to principles of conflicts of law that would result in the application
of the substantive law of another jurisdiction. The parties hereto agree that any action, proceeding or claim arising out of or relating in any way to this letter agreement shall be resolved through final and binding arbitration in accordance with
the International Arbitration Rules of the American Arbitration Association (“AAA”). The arbitration shall be brought before the AAA International Center for Dispute Resolution’s offices in New York City, New York, will be conducted
in English and will be decided by a panel of three arbitrators selected from the AAA Commercial Disputes Panel and that the arbitrator panel’s decision shall be final and enforceable by any court having jurisdiction over the party from whom
enforcement is sought. The cost of such arbitrators and arbitration services, together with the prevailing party’s legal fees and expenses, shall be borne by the non-prevailing party or as otherwise
directed by the arbitrators. 
 14. As used herein, (i) a “Business Combination” shall mean a merger, share
exchange, asset acquisition, stock purchase, recapitalization, reorganization or other similar business combination with one or more businesses or entities; (ii) “Insiders” shall mean all officers, directors and shareholders
of the Company immediately prior to the IPO; (iii) “Insider Shares” shall mean all of the shares of Common Stock of the Company acquired by an Insider prior to the IPO and the purchase of the Private Warrants; (iv)
“IPO Shares” shall mean the shares of Common Stock issued in the Company’s IPO; (v) “Private Warrants” shall mean the warrants purchased in the private placement taking place simultaneously with
the consummation of the Company’s IPO; (vi) “Registration Statement” means the registration statement on Form S-1 filed by the Company with respect to the IPO; and (vii)
“Trust Fund” shall mean the trust fund into which a portion of the net proceeds of the Company’s IPO will be deposited. 

15. Any notice, consent or request to be given in connection with any of the terms or provisions of this letter agreement shall be in writing
and shall be sent by express mail or similar private courier service, by certified mail (return receipt requested), by hand delivery or facsimile transmission. 

If to the Representatives: 
 LifeSci Acquisition III Corp. 

250 W. 55th St., #3401 
 New York, NY 10019 

Attn: Andrew McDonald 
 Facsimile: [__] 

and 
 Ladenburg Thalmann & Co. Inc. 

277 Park Avenue, 26th Floor 
 New York NY 10172 

Attn: Steven Kaplan 
 Email: Skaplan@ladenburg.com 












 Copy (which copy shall not constitute notice) to: 

Ellenoff Grossman & Schole LLP 
 1345 Avenue of the
Americas 
 New York, NY 10105 
 Attn: Stuart Neuhauser, Esq.

 Facsimile: (212) 370-7889 

If to the Company: 
 LifeSci Acquisition III Corp. 

250 W. 55th St., #3401 
 New York, NY 10019 

Attn: Andrew McDonald 
 Facsimile: 

Copy (which copy shall not constitute notice) to: 

Loeb & Loeb LLP 
 345 Park Avenue 

New York, NY 10154 
 Attn: Mitchell S. Nussbaum, Esq. and Giovanni
Caruso 
 Facsimile: (212) 504-3013 

16. No party hereto may assign either this letter agreement or any of its rights, interests, or obligations hereunder without the prior written
consent of the other party. Any purported assignment in violation of this paragraph shall be void and ineffectual and shall not operate to transfer or assign any interest or title to the purported assignee. This letter agreement shall be binding on
the parties hereto and any successors and assigns thereof. 
 17. The undersigned acknowledges and understands that the Underwriters and the
Company will rely upon the agreements, representations and warranties set forth herein in proceeding with the IPO. 
 [Signature page to
follow] 












 
	
	  
 Print Name of Insider

	
	  

	Signature


 [Signature page to Insider Letter]