Exhibit 10.3(d) 


 


	 	March 2, 2016


Jensyn Acquisition Corp.


800 West Main Street, Suite 204


Freehold, New Jersey 07728


 


Chardan Capital Markets, LLC


17 State Street, Suite 1600


New York, New York 10004


 


	 	Re:	Initial Public Offering


 


Gentlemen:


 


This letter is being
delivered to you in accordance with the Underwriting Agreement (the “Underwriting Agreement”) entered
into by and between Jensyn Acquisition Corp., a Delaware corporation (the “Company”), and Chardan Capital
Markets, LLC, as Representative (the “Representative”) of the several Underwriters named in Schedule
I thereto (the “Underwriters”), relating to an underwritten initial public offering (the “IPO”)
of the Company’s units (the “Units”), each comprised of one share of the Company’s common
stock, par value $0.0001 per share (the “Common Stock”), one right (“Right”)
to receive one-tenth of one share of Common Stock upon consummation of the Company’s initial Business Combination, and one
warrant to purchase one-half of one share of Common Stock (“Warrant”). 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 stockholder 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 stockholders 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 the time period
required by the Company’s Amended and Restated Certificate, the undersigned shall take all reasonable steps to (i) cause
the Company to cease all operations except for the purpose of winding up, (ii) as promptly as possible, but no more than ten business
days after the expiration of such period, redeem 100% of the outstanding IPO Shares for a pro rata portion of the funds held in
the Trust Account and (iii) as promptly as reasonably possible following such redemption, subject to the approval of the Company’s
remaining holders of Common Stock and the Board of Directors, cause the Company to dissolve and liquidate, subject (in the case
of (ii) and (iii) above) to the Company’s obligations under Delaware law to provide for claims of creditors and the requirements
of other applicable law.



 


(b) The undersigned hereby waives
(i) any and all right, title, interest or claim of any kind in or to any funds in the Trust Account with respect to his, her or
its Insider Shares and shares of Common Stock included in the Private Units if the Company fails to consummate a Business Combination
within the requisite time period or (ii) their conversion rights with respect to shares of Common Stock held by him her or it in
connection with the completion of a Business Combination. The undersigned acknowledges and agrees that there will be no distribution
from the Trust Account with respect to any Rights or Warrants held by the undersigned, all of which will terminate on the Company’s
liquidation.


 




    	 	 	 



     


    

 


(c) In the event of the liquidation
of the Trust Account, each of Jeffrey J. Raymond, Rebecca Irish, Joseph Raymond and Peter Underwood (collectively, the “Insiders”)
jointly and severally agree 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) to which the Company may become subject
as a result of any claim by any vendor for services rendered or products sold to the Company, or by any target business with which
the Company has discussed entering into an agreement for a Business Combination, 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 Account to below $10.35 per IPO
Share; provided that such indemnity shall not apply if such vendor or prospective target business has executed an agreement
waiving any right, title, interest or claim of any kind they may have in or to any monies held in the Trust Account and to any
claims under the Company’s indemnity of the underwriters of the IPO against certain liabilities, including liabilities under
the Securities Act.


 


		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.	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 (i) the consummation by the Company of a Business Combination
and (ii) 24 months from the date of the prospectus for the IPO, subject to any pre-existing fiduciary and contractual obligations
the undersigned might have to another entity.



 


		5.	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, 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 stockholders from a financial
point of view.



 


		6.	Neither the undersigned, any member of the immediate family of the undersigned, nor any Affiliate
of the undersigned will be entitled to receive and will not accept any fees, reimbursements or other cash payments prior to, or
for services rendered in order to effectuate, the consummation of the Business Combination; provided that the Company shall
be allowed (i) to repay at the consummation of a Business Combination non-interest bearing loan in an aggregate amount of up to
$957,100 made to the Company by the Insiders to cover the IPO expenses, (ii) to pay $10,000 per month to Jensyn Integration, LLC
for office space and related services, subject to adjustment as described in the Registration Statement, (iii) to repay working
capital loans made to the Company upon consummation of a Business Combination or, at the discretion of the lender, with respect
to up to an aggregate of $700,000 of working capital loans from all lenders, by converting such loans into Private Units at a price
of $10.00 per unit, as more fully described in the Registration Statement, and (iv) reimburse the undersigned and any Affiliate
of the undersigned for their out-of-pocket expenses incurred in connection with identifying, investigating and consummating a Business
Combination.



 


		7.	Neither the undersigned, any member of the immediate 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 immediate family of the undersigned or any Affiliate of the undersigned originates a Business Combination.



 


		8.	The undersigned agrees to serve as a Special Advisor to 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 Representative 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. The undersigned’s FINRA Questionnaire and Regulation
D Compliance Certification previously furnished to the Company and the Representative are true and accurate in all material respects.



 


		9.	The undersigned has full right and power, without violating any agreement by which he, she or it
is bound, to enter into this letter agreement and to serve as Special Advisor to the Company.



 




    	 	 	 



     


    

 


		10.	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 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.



 


		11.	The undersigned hereby agrees to not propose, or vote in favor of, an amendment to Article Sixth
of the Company’s Amended and Restated Certificate of Incorporation that would affect the substance or timing of the Company’s
obligation to redeem 100% of the IPO Shares if the Company does not complete a Business Combination within the requisite time period,
unless the Company provides its public stockholders with the opportunity to redeem their IPO Shares upon approval of any such amendment
at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest earned
on the funds held therein and not previously released to the Company to pay its franchise and income taxes, divided by the number
of then outstanding IPO Shares.



 


		12.	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.



 


		13.	This letter agreement shall be governed by and construed and enforced in accordance with the laws
of the State of New York, without giving effect to conflicts of law principles that would result in the application of the substantive
laws of another jurisdiction. The undersigned hereby (i) agrees that any action, proceeding or claim against him, her or it arising
out of or relating in any way to this letter agreement (a “Proceeding”) shall be brought and enforced
in the courts of the State of New York of the United States of America for the Southern District of New York, and irrevocably submits
to such jurisdiction, which jurisdiction shall be exclusive, and (ii) waives any objection to such exclusive jurisdiction and that
such courts represent an inconvenient forum.



 


		14.	As used herein, (i) “Affiliate” shall have the meaning given to such
term in Rule 405 under the Securities Act of 1933, as amended, (ii) 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; (iii) “Insiders” shall mean all officers, directors and stockholders
of the Company immediately prior to the IPO; (iv) “Insider Shares” shall mean all of the shares of Common
Stock of the Company acquired by an Insider prior to the IPO; (v) “IPO Shares” shall mean the shares
of Common Stock issued in the Company’s IPO; (vi) “Private Units” shall mean (x) the Units purchased
in the private placement taking place simultaneously with the consummation of the Company’s IPO, (y) the additional Units
that will be purchased in a private placement upon the full or partial exercise of the underwriter’s over-allotment option
for the Company’s IPO and (z) Units issued upon conversion of up to $700,000 in working capital loans made to the Company
by the Insiders; (vii) “Registration Statement” means the registration statement on Form S-1 filed by
the Company with respect to the IPO; and (viii) “Trust Account” shall mean the trust account 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.



 


		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.



 


	 	Sincerely,
	 	 
	 	 	 /s/ Peter Underwood
	 	 	Peter Underwood


 


	Acknowledged and Agreed:	 
	 	 
	Jensyn Acquisition Corp.	 
	 	 	 
	By: 	/s/ Jeffrey J. Raymond	 
	Name: 	Jeffrey J. Raymond	 
	Title: 	President and Chief Executive Officer	 


 


[Signature page to Letter Agreement]