Document:

EX-10.2

 Exhibit 10.2 

[ ● ], 2020 
 Supernova Partners Acquisition
Company, Inc. 
 4301 50th Street NW 
 Suite 300 PMB 1044 

Washington D.C. 20016 
 Re: Initial Public Offering 

Ladies and Gentlemen: 
 This letter (this
“Letter Agreement”) is being delivered to you in accordance with the Underwriting Agreement (the “Underwriting Agreement”) entered into or proposed to be entered into by and among Supernova Partners Acquisition
Company, Inc., a Delaware corporation (the “Company”), and J.P. Morgan Securities LLC and Jefferies LLC, as the representatives (the “Representatives”) of the several underwriters named therein(collectively, the
“Underwriters”), relating to an underwritten initial public offering (the “Public Offering”) of up to 34,500,000 of the Company’s units (including up to 4,500,000 units that may be purchased to cover
over-allotments, if any) (the “Units”), each comprised of one share of the Company’s Class A common stock, par value $0.0001 per share (“Common Stock”), and
one-third of one redeemable warrant (each, a “Warrant”). Each whole Warrant entitles the holder thereof to purchase one share of Common Stock at a price of $11.50 per share, subject to
adjustment. The Units will be sold in the Public Offering pursuant to a registration statement on Form S-1 and prospectus (the “Prospectus”) filed by the Company with the Securities and
Exchange Commission (the “Commission”) and the Company has applied to have the Units listed on the New York Stock Exchange. Certain capitalized terms used herein are defined in paragraph 11 hereof. 

In order to induce the Company and the Underwriters to enter into the Underwriting Agreement and to proceed with the Public Offering and for
other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Supernova Partners LLC (the “Sponsor”) and the undersigned individuals, each of whom is a member of the Company’s board of
directors, a nominee for membership on the Company’s board of directors and/or a member of the Company’s management team (each, an “Insider” and collectively, the “Insiders”), hereby agrees, severally but
not jointly, with the Company as follows: 
 1. The Sponsor and each Insider agrees that if the Company seeks stockholder approval of a
proposed Business Combination, then in connection with such proposed Business Combination, it, he or she shall (i) vote any shares of Capital Stock owned by it, him or her in favor of any proposed Business Combination and (ii) not redeem
any shares of Common Stock owned by it, him or her in connection with such stockholder approval. If the Company seeks to consummate a proposed Business Combination by engaging in a tender offer, the Sponsor and each Insider agrees that it, he or she
will not sell or tender any shares of Common Stock owned by it, him or her in connection therewith. 

 2. The Sponsor and each Insider hereby agrees that in the event that the Company fails to
consummate a Business Combination within 24 months from the closing of the Public Offering, or such later period as approved by the Company’s stockholders in accordance with the Company’s second amended and restated certificate of
incorporation (an “Extension Period”), the Sponsor and each Insider shall take all reasonable steps to cause the Company to (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably
possible but not more than ten (10) business days thereafter, redeem 100% of the shares of Common Stock sold as part of the Units in the Public Offering (the “Offering Shares”), 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 in the Trust Account (net of taxes payable and less up to $100,000 of interest to pay dissolution expenses), divided by the number of then
outstanding Offering Shares, which redemption will completely extinguish all Public Stockholders’ rights as stockholders of the Company (including the right to receive further liquidation distributions, if any), and (iii) as promptly as
reasonably possible following such redemption, subject to the approval of the Company’s remaining stockholders and the Company’s board of directors, dissolve and liquidate, subject in each case to the Company’s obligations under
Delaware law to provide for claims of creditors and other requirements of applicable law. The Sponsor and each Insider agrees not to propose any amendment to the Company’s second amended and restated certificate of incorporation to modify the
substance or timing of the Company’s obligation to allow redemption in connection with the Company’s initial Business Combination or to redeem 100% of the Offering Shares if the Company does not complete a Business Combination within 24
months from the closing of the Public Offering or with respect to any other provision relating to the rights of holders of the Common Stock or pre-initial Business Combination activity, unless the Company
provides Public Stockholders with the opportunity to redeem their Offering 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 in the Trust Account (net of taxes payable and less up to $100,000 of interest to pay dissolution expenses), divided by the number of then outstanding Offering Shares. 

The Sponsor and each Insider acknowledges that it, he or she has no right, title, interest or claim of any kind in or to any monies held in
the Trust Account or any other asset of the Company as a result of any liquidation of the Company with respect to the Founder Shares held by it. The Sponsor and each Insider hereby further waives, with respect to any shares of Common Stock held by
it, him or her, if any, any redemption rights it, he or she may have in connection with (A) the consummation of a Business Combination, including, without limitation, any such rights available in the context of a stockholder vote to approve
such Business Combination or (B) in the context of a tender offer made by the Company to purchase shares of Common Stock, or in connection with a stockholder vote to approve an amendment to the Company’s second amended and restated
certificate of incorporation (i) to modify the substance or timing of the Company’s obligation to allow redemption in connection with the Company’s initial Business Combination or to redeem 100% of the Offering Shares if the Company
has not consummated a Business Combination within 24 months from the closing of the Public Offering or (ii) with respect to any other provision relating to the rights of holders of the Common Stock or
pre-initial Business Combination activity (although the Sponsor, the Insiders and their respective affiliates shall be entitled to redemption and liquidation rights with respect to any Offering Shares it or
they hold if the Company fails to consummate a Business Combination within 24 months from the date of the closing of the Public Offering or any Extension Period). 

  
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 3. Notwithstanding the provisions set forth in paragraphs 7(a) and (b) below, during
the period commencing on the effective date of the Underwriting Agreement and ending 180 days after such date, the Sponsor and each Insider shall not, without the prior written consent of the Representatives, (i) offer, pledge, sell, contract
to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend or otherwise transfer or dispose of, directly or indirectly, or file with, or submit to, the Commission a
registration statement under the Securities Act of 1933, as amended (the “Securities Act”) relating to any Units, shares of Common Stock, Founder Shares, Warrants or any securities convertible into, or exercisable, or exchangeable
for, any Units, Common Stock, Founder Shares, or Warrants, or publicly disclose the intention to undertake any of the foregoing, or (ii) enter into any swap or other arrangement that transfers, in whole or in part, any of the economic
consequences of ownership of any Units, shares of Common Stock, Founder Shares, or Warrants or any such other securities, whether any such transaction described in clause (i) or (ii) above is to be settled by delivery of units or such other
securities, in cash or otherwise; provided, however, the foregoing shall not apply to the forfeiture of any Founder Shares pursuant to their terms or any transfer of Founder Shares to current or future independent directors of the
company (as long as such current or future independent director is subject to the terms of this Letter Agreement with respect to such Founder Shares at the time of such transfer; and as long as, to the extent any reporting obligation under
Section 16 of the Securities Exchange Act of 1934, as amended (“Section 16”), is triggered as a result of such transfer, any related Section 16 filing includes a practical explanation of the transfer). The provisions of
this paragraph will not apply if the release or waiver is effected solely to permit a transfer not for consideration and the transferee has agreed in writing to be bound by the same terms described in this Letter Agreement to the extent and for the
duration that such terms remain in effect at the time of the transfer. 
 4. In the event of the liquidation of the Trust Account upon the
failure of the Company to consummate a Business Combination within 24 months from the date of the closing of the Public Offering or any Extension Period, the Sponsor (which for purposes of clarification shall not extend to any other stockholders,
members or managers of the Sponsor, or any of the other undersigned) agrees to indemnify and hold harmless the Company against any and all loss, liability, claim, 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 (i) any third party
(other than the Company’s independent registered public accounting firm) for services rendered or products sold to the Company or (ii) a prospective target business with which the Company has discussed entering into a transaction agreement
(a “Target”); provided, however, that such indemnification of the Company by the Sponsor shall apply only to the extent necessary to ensure that such claims by a third party for services rendered (other than the
Company’s independent registered public accounting firm) or products sold to the Company or a Target do not reduce the amount of funds in the Trust Account to below (i) $10.00 per Offering Share or (ii) such lesser amount per Offering
Share held in the Trust Account due to reductions in the value of the trust assets as of the date of the liquidation of the Trust Account due to reductions in the value of the trust assets, in each case, net of the amount of interest earned on the
property in the Trust Account which may be withdrawn to pay the Company’s taxes, except as to any claims by a third party who executed a waiver of any and all rights to seek access to the Trust Account and

  
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except as to any claims under the Company’s indemnity of the Underwriters against certain liabilities, including liabilities under the Securities Act. In the event that any such executed
waiver is deemed to be unenforceable against such third party, the Sponsor shall not be responsible to the extent of any liability for such third party claims. The Sponsor shall have the right to defend against any such claim with counsel of its
choice reasonably satisfactory to the Company if, within 15 days following written receipt of notice of the claim to the Sponsor, the Sponsor notifies the Company in writing that it shall undertake such defense. 

5. To the extent that the Underwriters do not exercise their over-allotment option to purchase up to an additional 4,500,000 Units within 45
days from the date of the Prospectus (and as further described in the Prospectus), each Initial Stockholder agrees that it shall forfeit, at no cost, its pro rata portion of a number of Founder Shares in the aggregate equal to 1,125,000 multiplied
by a fraction, (i) the numerator of which is 4,500,000 minus the number of Units purchased by the Underwriters upon the exercise of their over-allotment option, and (ii) the denominator of which is 4,500,000. The forfeiture will be
adjusted to the extent that the over-allotment option is not exercised in full by the Underwriters so that the number of Founder Shares will represent an aggregate of 20.0% of the Company’s issued and outstanding shares of Capital Stock after
the Public Offering (not including shares of Common Stock underlying the Warrants or the Private Placement Warrants). The Initial Stockholders further agree that to the extent that the size of the Public Offering is increased or decreased, the
Company will effect a stock dividend or share repurchase or contribution back to capital, as applicable, immediately prior to the consummation of the Public Offering in such amount as to maintain the number of Founder Shares at 20.0% of its issued
and outstanding shares of Capital Stock upon the consummation of the Public Offering. In connection with such increase or decrease in the size of the Public Offering, then (A) the references to 4,500,000 in the numerator and denominator of the
formula in the first sentence of this paragraph shall be changed to a number equal to 15.0% of the number of shares included in the Units issued in the Public Offering and (B) the reference to 1,125,000 in the formula set forth in the first
sentence of this paragraph 5 shall be adjusted to such number of Founder Shares that the Initial Stockholders would have to return to the Company in order for the number of Founder Shares to equal an aggregate of 20.0% of the Company’s issued
and outstanding shares of Capital Stock after the Public Offering. 
 6. The Sponsor and each Insider hereby agrees and acknowledges that:
(i) the Underwriters and the Company may be irreparably injured in the event of a breach by such Sponsor or Insider of its, or his or her obligations under paragraphs 1, 2, 3, 4, 5, 7(a), 7(b), 8 and 9 of this Letter Agreement,
(ii) monetary damages may not be an adequate remedy for such breach and (iii) the non-breaching party shall be entitled to seek injunctive relief, in addition to any other remedy that such party may
have in law or in equity, in the event of such breach. 
 7. (a) The Sponsor and each Insider agrees that it, he or she shall not Transfer
any Founder Shares (or shares of Common Stock issuable upon conversion thereof) until the earlier of (A) one year after the completion of the Company’s initial Business Combination and (B) subsequent to the Company’s initial
Business Combination, (x) if the last reported sale price of the Common Stock equals or exceeds $12.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days within any
30-trading day period commencing at least 150 days after the Company’s initial Business Combination or (y) the date on which the Company completes a liquidation, merger, stock exchange,
reorganization or other similar transaction that results in all of the Company’s stockholders having the right to exchange their shares of Common Stock for cash, securities or other property (the “Founder Shares Lock-up Period”). 

  
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 (b) The Sponsor and each Insider agrees that it, he or she shall not Transfer any Private
Placement Warrants (or shares of Common Stock issued or issuable upon the exercise of the Private Placement Warrants), until 30 days after the completion of a Business Combination (the “Private Placement Warrants Lock-up Period,” together with the Founder Shares Lock-up Period, the “Lock-up Periods”). 

(c) Notwithstanding the provisions set forth in paragraphs 7(a) and (b), Transfers of the Founder Shares, Private Placement Warrants and shares
of Common Stock issued or issuable upon the exercise or conversion of the Private Placement Warrants or the Founder Shares and that are held by the Sponsor, any Insider or any of their permitted transferees (that have complied with this paragraph
7(c)), are permitted (a) to the Company’s officers or directors, any affiliates or family members of any of the Company’s officers or directors, any members of the Sponsor, or any affiliates of the Sponsor; (b) in the case of an
individual, by gift to a member of the individual’s immediate family or to a trust, the beneficiary of which is a member of the individual’s immediate family or an affiliate of such person, or to a charitable organization; (c) in the
case of an individual, by virtue of laws of descent and distribution upon death of the individual; (d) in the case of an individual, pursuant to a qualified domestic relations order; (e) by private sales or transfers made in connection
with the consummation of a Business Combination at prices no greater than the price at which the securities were originally purchased; (f) in the event of the Company’s liquidation prior to the completion of its initial Business
Combination; (g) by virtue of the laws of the State of Delaware or the Sponsor’s limited liability company agreement, as amended, upon dissolution of the Sponsor; or (h) in the event of the Company’s completion of a liquidation,
merger, stock exchange, reorganization or other similar transaction which results in all of the Company’s stockholders having the right to exchange their shares of Common Stock for cash, securities or other property subsequent to the
Company’s completion of a Business Combination; provided, however, that in the case of clauses (a) through (g), these permitted transferees must enter into a written agreement with the Company agreeing to be bound by the transfer
restrictions herein and the other restrictions contained in this Agreement (including provisions relating to voting, the Trust Account and liquidating distributions). 

8. The Sponsor and each Insider represents and warrants that it, he or she has never been suspended or expelled from membership in any
securities or commodities exchange or association or had a securities or commodities license or registration denied, suspended or revoked. Each Insider’s biographical information furnished to the Company (including any such information included
in the Prospectus) is true and accurate in all respects and does not omit any material information with respect to the undersigned’s background. Each Insider’s questionnaire furnished to the Company and the Representatives is true and
accurate in all respects. Each Insider represents and warrants that: such Insider is not subject to or a respondent in any legal action for, any injunction,
cease-and-desist order or order or stipulation to desist or refrain from any act or practice relating to the offering of securities in any jurisdiction; such Insider has
never been convicted of, or pleaded guilty to, any crime (i) involving fraud, (ii) relating to any financial transaction or handling of funds of another person, or (iii) pertaining to any dealings in any securities and it is not
currently a defendant in any such criminal proceeding. 

  
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 9. Except as disclosed in, or expressly contemplated by, the Prospectus, neither the Sponsor
nor any Insider nor any affiliate of the Sponsor or any Insider, nor any director or officer of the Company, shall receive from the Company any finder’s fee, reimbursement, consulting fee, monies in respect of any repayment of a loan or other
compensation prior to, or in connection with any services rendered in order to effectuate the consummation of the Company’s initial Business Combination (regardless of the type of transaction that it is). 

10. The Sponsor and each Insider has full right and power, without violating any agreement to which it is bound (including, without limitation,
any non-competition or non-solicitation agreement with any employer or former employer), to enter into this Letter Agreement and, as applicable, to serve as an officer
and/or a director on the board of directors of the Company, as applicable, and hereby consents to being named in the Prospectus as an officer and/or director of the Company, as applicable. 

11. As used herein, (i) “Business Combination” shall mean any merger, capital stock exchange, asset acquisition, stock purchase,
reorganization or similar business combination, involving the Company and one or more businesses; (ii) “Capital Stock” shall mean, collectively, the Common Stock and the Founder Shares; (iii) “Founder Shares” shall mean the
8,625,000 shares of the Company’s Class B common stock, par value $0.0001 per share, initially issued to the Sponsor (up to 1,125,000 of which are subject to complete or partial forfeiture by the Sponsor if the over-allotment option is not
exercised by the Underwriters) for an aggregate purchase price of $25,000 prior to the consummation of the Public Offering; (iv) “Initial Stockholders” shall mean the Sponsor and any Insider that holds Founder Shares; (v) “Private
Placement Warrants” shall mean the Warrants to purchase shares of Common Stock of the Company that the Sponsor has agreed to purchase for an aggregate purchase price of $8,000,000 in the aggregate (or $8,900,000 if the over-allotment option is
exercised in full) in a private placement that shall occur simultaneously with the consummation of the Public Offering; (vi) “Public Stockholders” shall mean the holders of securities issued in the Public Offering; (vii) “Trust
Account” shall mean the trust fund into which a portion of the net proceeds of the Public Offering and the sale of the Private Placement Warrants shall be deposited; and (viii) “Transfer” shall mean the (a) sale or assignment of,
offer to sell, contract or agreement to sell, hypothecate, pledge, grant of any option to purchase or otherwise dispose of or agreement to dispose of, directly or indirectly, or establishment or increase of a put equivalent position or liquidation
with respect to or decrease of a call equivalent position within the meaning of Section 16 and the rules and regulations of the Commission promulgated thereunder with respect to, any security, (b) entry into any swap or other arrangement
that transfers to another, in whole or in part, any of the economic consequences of ownership of any security, whether any such transaction is to be settled by delivery of such securities, in cash or otherwise, or (c) public announcement of any
intention to effect any transaction specified in clause (a) or (b). 
 12. This Letter Agreement constitutes the entire agreement and
understanding of the parties hereto in respect of the subject matter hereof and supersedes all prior understandings, agreements, or representations by or among the parties hereto, written or oral, to the extent they relate in any way to the subject
matter hereof or the transactions contemplated hereby. This Letter Agreement may not be changed, amended, modified or waived (other than to correct a typographical error) as to any particular provision, except by a written instrument executed by
(1) each Insider that is the subject of any such change, amendment, modification or waiver, (2) the Company and (3) the Sponsor. 

  
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 13. 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 parties. 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 Sponsor and each Insider and their respective successors, heirs and assigns and permitted transferees. 

14. This Letter Agreement may be executed in any number of original or facsimile counterparts and each of such counterparts shall for all
purposes be deemed to be an original, and all such counterparts shall together constitute but one and the same instrument. 
 15. This Letter
Agreement shall be deemed severable, and the invalidity or unenforceability of any term or provision hereof shall not affect the validity or enforceability of this Letter Agreement or of any other term or provision hereof. Furthermore, in lieu of
any such invalid or unenforceable term or provision, the parties hereto intend that there shall be added as a part of this Letter Agreement a provision as similar in terms to such invalid or unenforceable provision as may be possible and be valid
and enforceable. 
 16. This Letter Agreement shall be governed by and construed and enforced in accordance with the laws of the State of New
York, including, without limitation, Sections 5-1401 and 5-1402 of the New York General Obligations Law and New York Civil Practice Laws and Rules 327(b). The parties
hereto (i) all agree that any action, proceeding, claim or dispute arising out of, or relating in any way to, this Letter Agreement shall be brought and enforced in the courts of New York City, in the State of New York, and irrevocably submit
to such jurisdiction and venue, which jurisdiction and venue shall be exclusive and (ii) waive any objection to such exclusive jurisdiction and venue or that such courts represent an inconvenient forum. 

17. 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. 

18. This Letter Agreement shall terminate on the earlier of (i) the expiration of the Lock-up
Periods and (ii) the liquidation of the Company; provided, however, that this Letter Agreement shall earlier terminate in the event that the Public Offering is not consummated and closed by June 30, 2021; provided
further that paragraph 4 of this Letter Agreement shall survive such liquidation. 
 [Signature Page Follows] 

  
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	Sincerely,
	
	SUPERNOVA PARTNERS LLC
		
	By:	 	  

		 	Name:	 	Michael Clifton
		 	Title:	 	Chief Financial Officer
		
		 	
		 	  
 Ken Fox

		
		 	
		 	  
 Damien
Hooper-Campbell

		
		 	
		 	  
 Jim
Lanzone

		
		 	
		 	  
 Gregg
Renfrew

		
		 	
		 	  
 Rajeev
Singh

 [Signature Page to Letter Agreement] 

 
			
	Acknowledged and Agreed:
	
	SUPERNOVA PARTNERS ACQUISITION COMPANY, INC.
		
	By:	 	  

		 	Name: Michael Clifton
		 	Title:   Chief Financial Officer

 [Signature Page to Letter Agreement]EX-10.3

 Exhibit 10.3 

FORM OF INVESTMENT MANAGEMENT TRUST AGREEMENT 

This Investment Management Trust Agreement (this “Agreement”) is made effective as of
                , 2020, by and between Supernova Partners Acquisition Company, Inc., a Delaware corporation (the “Company”), and Continental
Stock Transfer & Trust Company, a New York corporation (the “Trustee”). 
 WHEREAS, the Company’s
registration statement on Form S-1, File No. 333-249053 (the “Registration Statement”) and prospectus (the
“Prospectus”) for the initial public offering of the Company’s units (the “Units”), each of which consists of one share of the Company’s Class A common stock, par value $0.0001 per share
(“Common Stock”), and one-third of one redeemable warrant, each whole warrant entitling the holder thereof to purchase one share of Common Stock (such initial public offering
hereinafter referred to as the “Offering”), has been declared effective as of the date hereof by the U.S. Securities and Exchange Commission; and 

WHEREAS, the Company has entered into an Underwriting Agreement (the “Underwriting Agreement”) with J.P. Morgan
Securities LLC and Jefferies LLC, as representatives (the “Representatives”) of the several underwriters (the “Underwriters”) named therein; and 

WHEREAS, as described in the Prospectus, $300,000,000 of the gross proceeds of the Offering and sale of the Private Placement Warrants (as
defined in the Underwriting Agreement) (or $345,000,000 if the Underwriters’ over-allotment option is exercised in full) will be delivered to the Trustee to be deposited and held in a segregated trust account located at all times in the United
States (the “Trust Account”) for the benefit of the Company and the holders of the shares of Common Stock included in the Units issued in the Offering as hereinafter provided (the amount to be delivered to the Trustee (and
any interest subsequently earned thereon) is referred to herein as the “Property,” the stockholders for whose benefit the Trustee shall hold the Property will be referred to as the “Public
Stockholders,” and the Public Stockholders and the Company will be referred to together as the “Beneficiaries”); and 

WHEREAS, pursuant to the Underwriting Agreement, a portion of the Property equal to $10,500,000, or $12,075,000 if the Underwriters’
over-allotment option is exercised in full, is attributable to deferred underwriting discounts and commissions that may be payable by the Company to the Underwriters upon the consummation of the Business Combination (as defined below) (the
“Deferred Discount”); 
 WHEREAS, simultaneously with the Offering, the Company’s sponsor will purchase
5,333,333 warrants (“Private Placement Warrants”) from the Company for an aggregate purchase price of $8,000,000 (and additional amounts of Private Placement Warrants from the Company if the Underwriters exercise their
over-allotment option, up to 5,933,333 Private Placement Warrants for an aggregate purchase price of $8,900,000 if the Underwriters’ over-allotment option is exercised in full); and 

WHEREAS, the Company and the Trustee desire to enter into this Agreement to set forth the terms and conditions pursuant to which the Trustee
shall hold the Property. 
 NOW THEREFORE, IT IS AGREED: 

 1. Agreements and Covenants of Trustee. The Trustee hereby agrees and covenants to: 

(a) Hold the Property in trust for the Beneficiaries in accordance with the terms of this Agreement in the Trust Account established by the
Trustee in the United States at JPMorgan Chase Bank N.A. (or at another U.S. chartered commercial bank with consolidated assets of $100 billion or more) in the United States, maintained by the Trustee and at a brokerage institution selected by
the Trustee that is reasonably satisfactory to the Company; 
 (b) Manage, supervise and administer the Trust Account subject to the terms
and conditions set forth herein; 
 (c) In a timely manner, upon the written instruction of the Company, invest and reinvest the Property in
United States government securities within the meaning of Section 2(a)(16) of the Investment Company Act of 1940, as amended, having a maturity of 185 days or less, or in money market funds meeting the conditions of paragraphs (d)(1),
(d)(2), (d)(3) and (d)(4) of Rule 2a-7 promulgated under the Investment Company Act of 1940, as amended (or any successor rule), which invest only in direct U.S. government treasury obligations, as
determined by the Company; the Trustee may not invest in any other securities or assets, it being understood that the Trust Account will earn no interest while account funds are uninvested awaiting the Company’s instructions hereunder and the
Trustee may earn bank credits or other considerations; 
 (d) Collect and receive, when due, all principal, interest or other income arising
from the Property, which shall become part of the “Property,” as such term is used herein; 
 (e) Promptly notify
the Company and the Representatives of all communications received by the Trustee with respect to any Property requiring action by the Company; 

(f) Supply any necessary information or documents as may be requested by the Company (or its authorized agents) in connection with the
Company’s preparation of the tax returns relating to assets held in the Trust Account or in connection with the preparation or completion of the audit of the Company’s financial statements by the Company’s auditors; 

(g) Participate in any plan or proceeding for protecting or enforcing any right or interest arising from the Property if, as and when
instructed by the Company to do so; 
 (h) Render to the Company monthly written statements of the activities of, and amounts in, the Trust
Account reflecting all receipts and disbursements of the Trust Account; 
  (i) Commence liquidation of the Trust Account only after and
promptly after (x) receipt of, and only in accordance with, the terms of a letter from the Company (“Termination Letter”) in a form substantially similar to that attached hereto as either
Exhibit A or Exhibit B, as applicable, signed on behalf of the Company by its Chief Executive Officer, Chief Financial Officer, Secretary or Chairman or Co-Chairman of the Board of
Directors of the Company (the “Board”) or other authorized officer of the Company, and complete the liquidation of the Trust Account and distribute the Property in the Trust Account, including interest earned on the invested
funds held in the Trust Account (net of taxes payable and less up to $100,000 of interest that may be released to the Company 

  
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to pay dissolution expenses), only as directed in the Termination Letter and the other documents referred to therein, or (y) the later of (1) 24 months after the closing of the
Offering and (2) such later date as may be approved by the Company’s stockholders in accordance with the Company’s amended and restated certificate of incorporation, if a Termination Letter has not been received by the Trustee prior
to such date, in which case the Trust Account shall be liquidated in accordance with the procedures set forth in the Termination Letter attached as Exhibit B and the Property in the Trust Account, including interest (earned on the invested
funds held in the Trust Account (net of taxes payable and less up to $100,000 of interest that may be released to the Company to pay dissolution expenses) shall be distributed to the Public Stockholders of record as of such date. It is acknowledged
and agreed that there should be no reduction in the principal amount per share initially deposited in the Trust Account; 
 (j) Upon written
request from the Company, which may be given from time to time in a form substantially similar to that attached hereto as Exhibit C (a “Withdrawal Instruction”), withdraw from the Trust Account and distribute to
the Company the amount of interest earned on the Property requested by the Company to cover any tax obligations owed by the Company as a result of assets of the Company or interest or other income earned on the Property, which amount shall be
delivered directly to the Company by electronic funds transfer or other method of prompt payment, and the Company shall forward such payment to the relevant taxing authority; provided, however, that to the extent there is not
sufficient cash in the Trust Account to pay such tax obligation, the Trustee shall liquidate such assets held in the Trust Account as shall be designated by the Company in writing to make such distribution; so long as there is no reduction in the
principal amount initially deposited in the Trust Account; provided, however, that if the tax to be paid is a franchise tax, the written request by the Company to make such distribution shall be accompanied by a copy of the franchise
tax bill from the State of Delaware for the Company and a written statement from the principal financial officer of the Company setting forth the actual amount payable (it being acknowledged and agreed that any such amount in excess of interest
income earned on the Property shall not be payable from the Trust Account). The written request of the Company referenced above shall constitute presumptive evidence that the Company is entitled to said funds, and the Trustee shall have no
responsibility to look beyond said request; 
  (k) Upon written request from the Company, which may be given from time to time in a
form substantially similar to that attached hereto as Exhibit D (a “Stockholder Redemption Withdrawal Instruction”), the Trustee shall distribute on behalf of the Company the amount requested by the Company to be
used to redeem shares of Common Stock from Public Stockholders properly submitted in connection with a stockholder vote to approve an amendment to the Company’s amended and restated certificate of incorporation (A) to modify the substance
or timing of the Company’s obligation to allow redemption in connection with the Company’s initial Business Combination or to redeem 100% of its public shares of Common Stock if the Company has not consummated an initial Business
Combination within such time as is described in the Company’s amended and restated certificate of incorporation or (B) with respect to any other provision relating to stockholders’ rights or
pre-initial Business Combination activity. The written request of the Company referenced above shall constitute presumptive evidence that the Company is entitled to distribute said funds, and the Trustee shall
have no responsibility to look beyond said request; and 

  
 3 

 (l) Not make any withdrawals or distributions from the Trust Account other than pursuant to
Section 1(i), (j) or (k) above. 
 2. Agreements and Covenants of the Company. The Company hereby agrees
and covenants to: 
 (a) Give all instructions to the Trustee hereunder in writing, signed by the Company’s Chairman or Co-Chairman of the Board, Chief Executive Officer, Chief Financial Officer or Secretary. In addition, except with respect to its duties under Sections 1(i), (j) and
(k) hereof, the Trustee shall be entitled to rely on, and shall be protected in relying on, any verbal or telephonic advice or instruction which it, in good faith and with reasonable care, believes to be given by any one of the persons
authorized above to give written instructions, provided that the Company shall promptly confirm such instructions in writing; 
 (b) Subject
to Section 4 hereof, hold the Trustee harmless and indemnify the Trustee from and against any and all documented expenses, including reasonable outside counsel fees and disbursements, or losses suffered by the Trustee in
connection with any action taken by it hereunder and in connection with any action, suit or other proceeding brought against the Trustee involving any claim, or in connection with any claim or demand, which in any way arises out of or relates to
this Agreement, the services of the Trustee hereunder, or the Property or any interest earned on the Property, except for expenses and losses resulting from the Trustee’s gross negligence, fraud or willful misconduct. Promptly after the receipt
by the Trustee of notice of demand or claim or the commencement of any action, suit or proceeding, pursuant to which the Trustee intends to seek indemnification under this Section 2(b), it shall notify the Company in
writing of such claim (hereinafter referred to as the “Indemnified Claim”). The Trustee shall have the right to conduct and manage the defense against such Indemnified Claim; provided that the Trustee shall obtain the
consent of the Company with respect to the selection of counsel, which consent shall not be unreasonably withheld. The Trustee may not agree to settle any Indemnified Claim without the prior written consent of the Company, which such consent shall
not be unreasonably withheld. The Company may participate in such action with its own counsel; 
 (c) Pay the Trustee the fees set forth on
Schedule A hereto, including an initial acceptance fee, annual administration fee, and transaction processing fee which fees shall be subject to modification by the parties from time to time. It is expressly understood that
the Property shall not be used to pay such fees unless and until it is distributed to, or on behalf of, the Company pursuant to Sections 1(i) through 1(j) hereof. The Company shall pay the Trustee the initial
acceptance fee and the first annual administration fee at the consummation of the Offering. The Company shall not be responsible for any other fees or charges of the Trustee except as set forth in this Section 2(c),
Schedule A and as may be provided in Section 2(b) hereof; 
 (d) In connection with any
vote of the Company’s stockholders regarding any merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination involving the Company and one or more businesses (the “Business
Combination”), provide to the Trustee an affidavit or certificate of the inspector of elections for the stockholder meeting verifying the vote of such stockholders regarding such Business Combination; 

  
 4 

 (e) Provide the Representatives with a copy of any Termination Letter(s) and/or any other
correspondence that is sent to the Trustee with respect to any proposed withdrawal from the Trust Account promptly after it issues the same; 

(f) Instruct the Trustee to make only those distributions that are permitted under this Agreement, and refrain from instructing the Trustee to
make any distributions that are not permitted under this Agreement; 
 (g) Expressly provide in any Instruction Letter (as defined
in Exhibit A) delivered in connection with a Termination Letter in the form attached hereto as Exhibit A that the Deferred Discount be paid directly to the account or accounts
directed by the Representatives; and 
 (h) Within four (4) business days after the Underwriters’ exercise of the over-allotment
option (or any unexercised portion thereof) or such over-allotment option expires, provide the Trustee with a notice in writing of the total amount of the Deferred Discount, which shall in no event be less than $10,500,000 (or $12,075,000 if the
Underwriters’ over-allotment option is exercised in full). 
 3. Limitations of Liability. The Trustee shall have no responsibility or liability
to: 
 (a) Imply obligations, perform duties, inquire or otherwise be subject to the provisions of any agreement or document other than this
Agreement and that which is expressly set forth herein; 
 (b) Take any action with respect to the Property, other than as directed in
Section 1 hereof, and the Trustee shall have no liability to any party under this Agreement except for liability arising out of the Trustee’s gross negligence, fraud or willful misconduct; 

(c) Institute any proceeding for the collection of any principal and income arising from, or institute, appear in or defend any proceeding of
any kind with respect to, any of the Property unless and until it shall have received written instructions from the Company given as provided herein to do so and the Company shall have advanced or guaranteed to it funds sufficient to pay any
expenses incident thereto; 
 (d) Change the investment of any Property, other than in compliance with Section 1
hereof; 
 (e) Refund any depreciation in principal of any Property; 

(f) Assume that the authority of any person designated by the Company to give instructions hereunder shall not be continuing unless provided
otherwise in such designation, or unless the Company shall have delivered a written revocation of such authority to the Trustee; 
 (g) The
Company or to anyone else for any action taken or omitted by it, or any action suffered by it to be taken or omitted, in good faith and in the Trustee’s best judgment, except for the Trustee’s gross negligence, fraud or willful misconduct.
The Trustee may rely conclusively and shall be protected in acting upon any order, notice, demand, certificate, opinion or advice of counsel (including counsel chosen by the Trustee, which counsel may be the

  
 5 

 
Company’s counsel), statement, instrument, report or other paper or document (not only as to its due execution and the validity and effectiveness of its provisions, but also as to the truth
and acceptability of any information therein contained) which the Trustee believes, in good faith and with reasonable care, to be genuine and to be signed or presented by the proper person or persons. The Trustee shall not be bound by any notice or
demand, or any waiver, modification, termination or rescission of this Agreement or any of the terms hereof, unless evidenced by a written instrument delivered to the Trustee, signed by the proper party or parties and, if the duties or rights of the
Trustee are affected, unless it shall give its prior written consent thereto; 
 (h) Verify the accuracy of the information contained in the
Registration Statement; 
 (i) Provide any assurance that any Business Combination entered into by the Company or any other action taken by
the Company is as contemplated by the Registration Statement; 
 (j) File information returns with respect to the Trust Account with any
local, state or federal taxing authority or provide periodic written statements to the Company documenting the taxes payable by the Company, if any, relating to any interest income earned on the Property; 

(k) Prepare, execute and file tax reports, income or other tax returns and pay any taxes with respect to any income generated by, and
activities relating to, the Trust Account, regardless of whether such tax is payable by the Trust Account or the Company, including, but not limited to, tax obligations, except pursuant to Section 1(j) hereof; or 

(l) Verify calculations, qualify or otherwise approve the Company’s written requests for distributions pursuant to
Sections 1(i), (j) and (k) hereof. 
 4. Trust Account Waiver. The Trustee has no right of set-off or any right, title, interest or claim of any kind (“Claim”) to, or to any monies in, the Trust Account, and hereby irrevocably waives any Claim to, or to any monies in, the Trust
Account that it may have now or in the future. In the event the Trustee has any Claim against the Company under this Agreement, including, without limitation, under Section 2(b) or (c) hereof, the Trustee shall
pursue such Claim solely against the Company and its assets outside the Trust Account and not against the Property or any monies in the Trust Account. 
 5.
Termination. This Agreement shall terminate as follows: 
 (a) If the Trustee gives written notice to the Company that it desires to
resign under this Agreement, the Company shall use its reasonable efforts to locate a successor trustee, pending which the Trustee shall continue to act in accordance with this Agreement. At such time that the Company notifies the Trustee that a
successor trustee has been appointed by the Company and has agreed to become subject to the terms of this Agreement, the Trustee shall transfer the management of the Trust Account to the successor trustee, including but not limited to the transfer
of copies of the reports and statements relating to the Trust Account, whereupon this Agreement shall terminate; provided, however, that in the event that the Company does not locate a successor trustee within ninety (90) days of
receipt of the resignation notice from the Trustee, the Trustee may submit an application to have the Property deposited with any court in the State of New York or with the United States District Court for the Southern District of New York and upon
such deposit, the Trustee shall be immune from any liability whatsoever; or 

  
 6 

 (b) At such time that the Trustee has completed the liquidation of the Trust Account and its
obligations in accordance with the provisions of Section 1(i) hereof and distributed the Property in accordance with the provisions of the Termination Letter, this Agreement shall terminate except with respect to
Section 2(b). 
 6. Miscellaneous. 

(a) The Company and the Trustee each acknowledge that the Trustee will follow the security procedures set forth below with respect to funds
transferred from the Trust Account. The Company and the Trustee will each restrict access to confidential information relating to such security procedures to authorized persons. Each party must notify the other party immediately if it has reason to
believe unauthorized persons may have obtained access to such confidential information, or of any change in its authorized personnel. In executing funds transfers, the Trustee shall rely upon all information supplied to it by the Company, including,
account names, account numbers, and all other identifying information relating to a Beneficiary, Beneficiary’s bank or intermediary bank. Except for any liability arising out of the Trustee’s gross negligence, fraud or willful misconduct,
the Trustee shall not be liable for any loss, liability or expense resulting from any error in the information or transmission of the funds. 

(b) This 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. This Agreement may be executed in several original or facsimile counterparts, each one of which shall constitute an original, and
together shall constitute but one instrument. 
 (c) This Agreement contains the entire agreement and understanding of the parties hereto
with respect to the subject matter hereof. Except for Section 1(i), 1(j) and 1(k) hereof (which sections may not be modified, amended or deleted without the affirmative vote of sixty-five percent (65%) of
the then outstanding shares of Common Stock and Class B common stock, par value $0.0001 per share, of the Company, voting together as a single class; provided that no such amendment will affect any Public Stockholder who has properly
elected to redeem his, her or its shares of Common Stock in connection with a stockholder vote to amend this Agreement), this Agreement or any provision hereof may only be changed, amended or modified (other than to correct a typographical error) by
a writing signed by each of the parties hereto. 
 (d) The parties hereto consent to the jurisdiction and venue of any state or federal
court located in the City of New York, State of New York, for purposes of resolving any disputes hereunder. AS TO ANY CLAIM, CROSS-CLAIM OR COUNTERCLAIM IN ANY WAY RELATING TO THIS AGREEMENT, EACH PARTY WAIVES THE RIGHT TO TRIAL BY JURY. 

(e) Any notice, consent or request to be given in connection with any of the terms or provisions of this 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 by electronic mail: 

  
 7 

 if to the Trustee, to: 

Continental Stock Transfer & Trust Company 

1 State Street, 30th Floor 

New York, New York 10004 

Attn: Francis Wolf and Celeste Gonzalez 

Email: fwolf@continentalstock.com 

Email: cgonzalez@continentalstock.com 

if to the Company, to: 

Supernova Partners Acquisition Company, Inc. 

4301 50th Street NW Suite 300 PMB 1044 

Washington, DC 20016 

Attn: Michael Clifton 

E-mail: michael@supernovaspac.com 

in each case, with copies to: 

Latham & Watkins LLP 

555 Eleventh Street, NW, Suite 1000 

Washington, DC 20004 

Attn: Patrick Shannon and Jason Licht 

E-mail: patrick.shannon@lw.com; jason.licht@lw.com 

Latham & Watkins LLP 

811 Main Street, Suite 3700 

Houston, TX 77002 

Attn: Ryan J. Maierson 

E-mail: ryan.maierson@lw.com 

If to the Underwriters, to: 

J.P. Morgan Securities LLC 

383 Madison Avenue 

New York, New York 10179 

Attn: [●] 

E-mail: [●] 

Jefferies LLC 

520 Madison Avenue 

New York, New York 10022 

Attn: [●] 

E-Mail: [●] 

  
 8 

 and 

Skadden, Arps, Slate, Meagher & Flom LLP 

300 South Grand Avenue, Suite 3400 

Los Angeles, California 90071 

Attn: Gregg Noel and P. Michelle Gasaway 

E-mail: gregg.noel@skadden.com; michelle.gasaway@skadden.com 

(f) Each of the Company and the Trustee hereby represents that it has the full right and power and has been duly authorized to enter into this
Agreement and to perform its respective obligations as contemplated hereunder. The Trustee acknowledges and agrees that it shall not make any claims or proceed against the Trust Account, including by way of
set-off, and shall not be entitled to any funds in the Trust Account under any circumstance. 
 (g)
This Agreement is the joint product of the Trustee and the Company and each provision hereof has been subject to the mutual consultation, negotiation and agreement of such parties and shall not be construed for or against any party hereto. 

(h) This Agreement may be executed in any number of counterparts, each of which shall be deemed to be an original, but all such counterparts
shall together constitute one and the same instrument. Delivery of a signed counterpart of this Agreement by facsimile or electronic transmission shall constitute valid and sufficient delivery thereof. 

(i) Each of the Company and the Trustee hereby acknowledges and agrees that the Representatives, on behalf of the Underwriters, are third
party beneficiaries of this Agreement. 
 (j) Except as specified herein, no party to this Agreement may assign its rights or delegate its
obligations hereunder to any other person or entity. 
 [Signature Page Follows] 

  
 9 

 IN WITNESS WHEREOF, the parties have duly executed this Investment Management Trust
Agreement as of the date first written above. 
  

			
	 CONTINENTAL STOCK TRANSFER & TRUST COMPANY, as Trustee

		
	By:	 	  

	 Name:
	 	 Francis Wolf

	 Title:
	 	 Vice President

	
	 SUPERNOVA PARTNERS ACQUISITION COMPANY, INC.

		
	By:	 	  

	 Name:
	 	 Michael Clifton

	 Title:
	 	 Chief Financial Officer

 SCHEDULE A 
  

					
	 Fee Item
	  	 Time and method of payment
	  	 Amount

	Initial set-up fee	  	Initial closing of Offering by wire transfer	  	$3,500.00
			
	Trustee administration fee	  	First year, initial closing of Offering by wire transfer, thereafter on the anniversary of the effective date of the Offering by wire transfer or check	  	$10,000.00
			
	Transaction processing fee for disbursements to Company under Sections 1(i) and 1(j)	  	Billed to Company following disbursement made to Company under Section 1	  	$250.00
			
	Paying Agent services as required pursuant to Sections 1(i) and 1(k)	  	Billed to Company upon delivery of service pursuant to Sections 1(i) and 1(k)	  	Prevailing rates

 EXHIBIT A 

[LETTERHEAD OF COMPANY] 

[INSERT DATE] 
 Continental Stock
Transfer & Trust Company 
 1 State Street, 30th Floor 

New York, New York 10004 
 Attn: Francis Wolf and Celeste Gonzalez

 Re: Trust Account Termination Letter 

Dear Mr. Wolf and Ms. Gonzalez: 

Pursuant to Section 1(i) of the Investment Management Trust Agreement between Supernova Partners Acquisition Company, Inc. (the
“Company”) and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of [●], 2020 (the “Trust Agreement”), this is to advise you that the Company
has entered into an agreement with [    ] (the “Target Business”) to consummate a business combination with Target Business (the “Business Combination”) on or about [insert date].
The Company shall notify you at least seventy-two (72) hours in advance of the actual date (or such shorter time period as you may agree) of the consummation of the Business Combination (the
“Consummation Date”). Capitalized terms used but not defined herein shall have the meanings set forth in the Trust Agreement. 

In accordance with the terms of the Trust Agreement, we hereby authorize you to commence to liquidate all of the assets of the Trust Account,
and to transfer the proceeds into the above-referenced trust operating account at JPMorgan Chase Bank, N.A. to the effect that, on the Consummation Date, all of funds held in the Trust Account will be immediately available for transfer to the
account or accounts that the Company and, solely with respect to the Deferred Discount, the Representatives, shall direct on the Consummation Date. It is acknowledged and agreed that while the funds are on deposit in the trust operating account at
JPMorgan Chase Bank, N.A. awaiting distribution, none of the Company or the Representatives will earn any interest or dividends. 
 On the
Consummation Date (i) counsel for the Company shall deliver to you written notification that the Business Combination has been consummated, or will be consummated substantially, concurrently with your transfer of funds to the accounts as
directed by the Company (the “Notification”) and (ii) the Company shall deliver to you (a) a certificate of the Chief Executive Officer of the Company, which verifies that the Business Combination has been approved
by a vote of the Company’s stockholders, if a vote is held and (b) joint written instruction signed by the Company and the Representatives with respect to the transfer of the funds held in the Trust Account, including payment of amounts
owed to public stockholders who have properly exercised their redemption rights and express instructions to pay the Deferred Discount from the Trust Account directly to the account or accounts directed by the Representatives (the
“Instruction Letter”). You are hereby directed and authorized to transfer the funds held in the Trust Account immediately upon your receipt of the Notification and the Instruction Letter, in accordance with the terms of the
Instruction Letter. In the event that certain deposits held in the Trust Account may not be liquidated by the Consummation Date without 

  
 A-1 

 
penalty, you will notify the Company in writing of the same and the Company shall direct you as to whether such funds should remain in the Trust Account and be distributed after the Consummation
Date to the Company. Upon the distribution of all the funds, net of any payments necessary for reasonable unreimbursed expenses related to liquidating the Trust Account, your obligations under the Trust Agreement shall be terminated. 

In the event that the Business Combination is not consummated on the Consummation Date described in the notice thereof and we have not
notified you on or before the original Consummation Date of a new Consummation Date, then upon receipt by the Trustee of written instructions from the Company, the funds held in the Trust Account shall be reinvested as provided in Section 1(c)
of the Trust Agreement on the business day immediately following the Consummation Date as set forth in the notice as soon thereafter as possible. 
  

			
	Very truly yours,
	
	Supernova Partners Acquisition Company, Inc.
		
	By:	 	  

		 	Name:
		 	Title:

  
 A-2 

 EXHIBIT B 

[LETTERHEAD OF COMPANY] 

[INSERT DATE] 
 Continental Stock
Transfer & Trust Company 
 1 State Street, 30th Floor 

New York, New York 10004 
 Attn: Francis Wolf and Celeste Gonzalez

 Re: Trust Account No. Termination Letter 

Dear Mr. Wolf and Ms. Gonzalez:
 Pursuant to
Section 1(i) of the Investment Management Trust Agreement between Supernova Partners Acquisition Company, Inc. (the “Company”) and Continental Stock Transfer & Trust Company (the
“Trustee”), dated as of [●], 2020 (the “Trust Agreement”), this is to advise you that the Company has been unable to effect a business combination with a Target Business (the “Business
Combination”) within the time frame specified in the Company’s Amended and Restated Certificate of Incorporation, as described in the Company’s Prospectus relating to the Offering. Capitalized terms used but not defined herein
shall have the meanings set forth in the Trust Agreement. 
 In accordance with the terms of the Trust Agreement, we hereby authorize you to
liquidate all of the assets in the Trust Account on [●] and to transfer the total proceeds into the trust operating account at JPMorgan Chase Bank, N.A. to await distribution to the Public Stockholders. The Company has selected
[    ] as the effective date for the purpose of determining when the Public Stockholders will be entitled to receive their share of the liquidation proceeds. It is acknowledged that no interest will be earned by the Company on
the liquidation proceeds while on deposit in the trust operating account. You agree to be the Paying Agent of record and, in your separate capacity as Paying Agent, agree to distribute said funds directly to the Company’s Public Stockholders in
accordance with the terms of the Trust Agreement and the Amended and Restated Certificate of Incorporation of the Company. Upon the distribution of all the funds, net of any payments necessary for reasonable unreimbursed expenses related to
liquidating the Trust Account, your obligations under the Trust Agreement shall be terminated, except to the extent otherwise provided in Section 1(j) of the Trust Agreement. 

 

			
	Very truly yours,
	
	Supernova Partners Acquisition Company, Inc.
		
	By:	 	  

		 	Name:
		 	Title:

  
 B-1 

 EXHIBIT C 

[LETTERHEAD OF COMPANY] 

[INSERT DATE] 
 Continental Stock
Transfer & Trust Company 
 1 State Street, 30th Floor 

New York, New York 10004 Attn: Francis Wolf and Celeste Gonzalez 

Re: Trust Account [Tax Payment] Withdrawal Instruction 

Dear Mr. Wolf and Ms. Gonzalez: 

Pursuant to Section 1(j) of the Investment Management Trust Agreement between Supernova Partners Acquisition
Company, Inc. (the “Company”) and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of [●], 2020 (the “Trust Agreement”), the Company hereby
requests that you deliver to the Company $             of the interest income earned on the Property as of the date hereof. Capitalized terms used but not defined herein shall have the
meanings set forth in the Trust Agreement. 
 The Company needs such funds to pay for the tax obligations as set forth on the attached tax
return or tax statement. In accordance with the terms of the Trust Agreement, you are hereby directed and authorized to transfer (via wire transfer) such funds promptly upon your receipt of this letter to the Company’s operating account at:

 [WIRE INSTRUCTION INFORMATION] 
  

			
	Very truly yours,
	
	Supernova Partners Acquisition Company, Inc.
		
	By:	 	  

		 	Name:
		 	Title:

  
 C-1 

 EXHIBIT D 

[LETTERHEAD OF COMPANY] 

[INSERT DATE] 
 Continental Stock
Transfer & Trust Company 
 1 State Street, 30th Floor 

New York, New York 10004 
 Attn: Francis Wolf and Celeste Gonzalez

 Re: Trust Account Stockholder Redemption Withdrawal Instruction 

Dear Mr. Wolf and Ms. Gonzalez: 

Pursuant to Section 1(k) of the Investment Management Trust Agreement between Supernova Partners Acquisition
Company, Inc. (the “Company”) and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of [●], 2020 (“Trust Agreement”), the Company hereby
requests that you deliver to the redeeming Public Stockholders of the Company $[            ] of the principal and interest income earned on the Property as of the date hereof. Capitalized
terms used but not defined herein shall have the meanings set forth in the Trust Agreement. 
 The Company needs such funds to pay its
Public Stockholders who have properly elected to have their shares of Common Stock redeemed by the Company in connection with a stockholder vote to approve an amendment to the Company’s amended and restated certificate of incorporation
(A) to modify the substance or timing of the Company’s obligation to allow redemption in connection with the Company’s initial Business Combination or to redeem 100% of its public shares of Common Stock if the Company has not
consummated an initial Business Combination within such time as is described in the Company’s amended and restated certificate of incorporation or (B) with respect to any other provision relating to stockholders’ rights of the Common
Stock or pre-initial Business Combination activity. As such, you are hereby directed and authorized to transfer (via wire transfer) such funds promptly upon your receipt of this letter to the redeeming Public
Stockholders in accordance with your customary procedures. 
  

			
	Very truly yours,
	
	Supernova Partners Acquisition Company, Inc.
		
	By:	 	  

		 	Name:
		 	Title:

  
 D-1

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