Exhibit 99.1

SUPERNOVA PARTNERS ACQUISITION COMPANY, INC.

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and Board of Directors of

Supernova Partners Acquisition Company, Inc.

Opinion on the Financial Statement

We have audited the accompanying balance sheet of Supernova Partners Acquisition Company, Inc. (the “Company”) as of October 23, 2020, the related notes (collectively referred to as the “financial statement”). In our opinion, the financial statement present fairly, in all material respects, the financial position of the Company as of October 23, 2020 in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

This financial statement is the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statement based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statement is free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audit we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion.

Our audit included performing procedures to assess the risks of material misstatement of the financial statement, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statement. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statement. We believe that our audit provides a reasonable basis for our opinion.

/s/ Marcum LLP

Marcum LLP

We have served as the Company’s auditor since 2020.

New York, NY

October 29, 2020

F-2

SUPERNOVA PARTNERS ACQUISITION COMPANY, INC.

BALANCE SHEET

October 23, 2020

The accompanying notes are an integral part of the financial statement.

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SUPERNOVA PARTNERS ACQUISITION COMPANY, INC.

NOTES TO FINANCIAL STATEMENT

Note 1—Description of organization, business operations and basis of presentation

Supernova Partners Acquisition Company, Inc. (the “Company”) is a blank check company incorporated in Delaware on August 31, 2020. The Company was formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses (the “Business Combination”). The Company is an emerging growth company and, as such, the Company is subject to all of the risks associated with emerging growth companies.

As of October 23, 2020, the Company had not commenced any operations. All activity for the period from August 31, 2020 (inception) through October 23, 2020 relates to the Company’s formation and the initial public offering (the “Initial Public Offering”) described below. The Company will not generate any operating revenues until after the completion of its initial Business Combination, at the earliest. The Company will generate non-operating income in the form of interest income on cash and cash equivalents from the proceeds derived from the Initial Public Offering (as defined below). The Company has selected December 31 as its fiscal year end.

The Company’s sponsor is Supernova Partners LLC, a Delaware limited liability company (the “Sponsor”). The registration statement for the Company’s Initial Public Offering was declared effective on October 20, 2020. On October 23, 2020, the Company consummated its Initial Public Offering of 40,250,000 units (the “Units” and, with respect to the Class A common stock included in the Units being offered, the “Public Shares”), including 5,250,000 additional Units to cover over-allotments (the “Over-Allotment Units”), at $10.00 per Unit, generating gross proceeds of $402.5 million, and incurring offering costs of approximately $22.8 million, inclusive of approximately $14.1 million in deferred underwriting commissions (Note 5).

Simultaneously with the closing of the Initial Public Offering, the Company consummated the private placement (“Private Placement”) of 6,700,000 warrants (each, a “Private Placement Warrant” and collectively, the “Private Placement Warrants”) at a price of $1.50 per Private Placement Warrant to the Sponsor, generating proceeds of approximately $10.1 million (Note 4).

Upon the closing of the Initial Public Offering and the Private Placement, $402.5 million ($10.00 per Unit) of the net proceeds of the Initial Public Offering and certain of the proceeds of the Private Placement was held in a trust account (“Trust Account”) located in the United States with Continental Stock Transfer & Trust Company acting as trustee, and invested only in U.S. government securities with a maturity of 185 days or less or in money market funds meeting certain conditions under Rule 2a-7 under the Investment Company Act which invest only in direct U.S. government treasury obligations, as determined by the Company, until the earlier of: (i) the completion of a Business Combination and (ii) the distribution of the Trust Account as described below.

The Company’s management has broad discretion with respect to the specific application of the net proceeds of the Initial Public Offering and the sale of Private Placement Warrants, although substantially all of the net proceeds are intended to be applied generally toward consummating a Business Combination. There is no assurance that the Company will be able to complete a Business Combination successfully. The Company must complete one or more initial Business Combinations having an aggregate fair market value of at least 80% of the net assets held in the Trust Account (excluding any deferred underwriters fees and taxes payable on the income earned on the Trust Account) at the time of the agreement to enter into the initial Business Combination. However, the Company will only complete a Business Combination if the post-transaction company owns or acquires 50% or more of the outstanding voting securities of the target or otherwise acquires a controlling interest in the target business sufficient for it not to be required to register as an investment company under the Investment Company Act 1940, as amended (the “Investment Company Act”).

The Company will provide the holders (the “Public Stockholders”) of the Company’s outstanding shares of Class A common stock, par value $0.0001 per share, sold in the Initial Public Offering (the “Public Shares”) with the opportunity to redeem all or a portion of their Public Shares upon the completion of a Business Combination either (i) in connection with a stockholder meeting called to approve the Business Combination or (ii) by means of a tender offer. The decision as to whether the Company will seek stockholder approval of a Business Combination or conduct a tender offer will be made by the Company, solely in its discretion, subject to applicable law and stock exchange listing requirements. The Public Stockholders will be entitled to redeem their Public Shares for a pro rata portion of the amount then held in the Trust Account (initially anticipated to be $10.00 per Public

F-4

SUPERNOVA PARTNERS ACQUISITION COMPANY, INC.

NOTES TO FINANCIAL STATEMENT

Share). The per- share amount to be distributed to Public Stockholders who redeem their Public Shares will not be reduced by the deferred underwriting commissions the Company will pay to the underwriters (as discussed in Note 5). These Public Shares will be recorded at a redemption value and classified as temporary equity upon the completion of the Initial Public Offering in accordance with the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification (“ASC”) Topic 480 “Distinguishing Liabilities from Equity.” The Company will proceed with a Business Combination only if a majority of the shares voted are voted in favor of the Business Combination. The Company will not redeem the Public Shares in an amount that would cause its net tangible assets to be less than $5,000,001. If a stockholder vote is not required by applicable law or stock exchange listing requirements and the Company does not decide to hold a stockholder vote for business or other reasons, the Company will, pursuant to its Second Amended and Restated Certificate of Incorporation (the “Certificate of Incorporation”), conduct the redemptions pursuant to the tender offer rules of the SEC and file tender offer documents with the SEC prior to completing a Business Combination. If, however, stockholder approval of the transaction is required by law, or the Company decides to obtain stockholder approval for business or legal reasons, the Company will offer to redeem shares in conjunction with a proxy solicitation pursuant to the proxy rules and not pursuant to the tender offer rules. Additionally, each public stockholder may elect to redeem their Public Shares irrespective of whether they vote for or against the proposed transaction. If the Company seeks stockholder approval in connection with a Business Combination, the initial stockholders (as defined below) have agreed to vote their Founder Shares (as defined below in Note 4) and any Public Shares purchased during or after the Initial Public Offering in favor of a Business Combination or don’t vote at all. In addition, the initial stockholders have agreed to waive their redemption rights with respect to their Founder Shares and Public Shares in connection with the completion of a Business Combination.

The Certificate of Incorporation will provide that a public stockholder, together with any affiliate of such stockholder or any other person with whom such stockholder is acting in concert or as a “group” (as defined under Section 13 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”)), will be restricted from redeeming its shares with respect to more than an aggregate of 15% or more of the Public Shares, without the prior consent of the Company.

The Sponsor and the Company’s officers and directors (the “initial stockholders”) will agree not to propose an amendment to the Certificate of Incorporation to modify the substance or timing of the Company’s obligation to allow redemptions in connection with its initial Business Combination or redeem 100% of the Public Shares if the Company does not complete a Business Combination within the initial Combination Period (as defined below) or with respect to any other provisions relating to stockholders’ rights or pre-initial Business Combination activity, unless the Company provides the Public Stockholders with the opportunity to redeem their Public Shares in conjunction with any such amendment.

If the Company is unable to complete a Business Combination within 24 months from the closing of the Initial Public Offering, or October 23, 2022 (as such period may be extended by the Company’s stockholders in accordance with the Certificate of Incorporation, the “Combination Period”), the Company will (1) cease all operations except for the purpose of winding up; (2) as promptly as reasonably possible but not more than 10 business days thereafter, redeem 100% of the Public 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 Public Shares, which redemption will completely extinguish Public Stockholders’ rights as stockholders (including the right to receive further liquidating distributions, if any); and (3) as promptly as reasonably possible following such redemption, subject to the approval of the remaining stockholders and the 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 the requirements of other applicable law.

The initial stockholders agreed to waive their rights to liquidating distributions from the Trust Account with respect to the Founder Shares if the Company fails to complete a Business Combination within the Combination Period. However, if the initial stockholders acquire Public Shares in or after the Initial Public Offering, they will be entitled to liquidating distributions from the Trust Account with respect to such Public Shares if the Company fails to complete a Business Combination within the Combination Period. The underwriters have agreed to waive their rights to the deferred underwriting commission (see Note 5) held in the Trust Account in the event the Company does not complete a Business Combination within in the Combination Period and, in such event, such amounts will be included with the other funds held in the Trust Account that will be available to fund the redemption of the Public Shares. In the event of such distribution, it is possible that the per share value of the residual assets remaining available for distribution (including Trust Account assets) will be only $10.00 or potentially less. In order to protect the amounts held in the

F-5

SUPERNOVA PARTNERS ACQUISITION COMPANY, INC.

NOTES TO FINANCIAL STATEMENT

Trust Account, the Sponsor has agreed to be liable to the Company if and to the extent any claims by a third party (except for the Company’s independent registered public accounting firm) for services rendered or products sold to the Company, or a prospective target business with which the Company has entered into a letter of intent, confidentiality or other similar agreement or business combination agreement (a “Target”), reduce the amount of funds in the Trust Account to below the lesser of (i) $10.00 per Public Share and (ii) the actual amount per Public Share held in the Trust Account as of the date of the liquidation of the Trust Account, if less than $10.00 per Public Share due to reductions in the value of the trust assets, less taxes payable, provided that such liability will not apply to any claims by a third party or Target that executed a waiver of any and all rights to the monies held in the Trust Account (whether or not such waiver is enforceable) not will it apply to any claims under the Company’s indemnity of the underwriters of the Initial Public Offering against certain liabilities, including liabilities under the Securities Act of 1933, as amended (the “Securities Act”). The Company will seek to reduce the possibility that the Sponsor will have to indemnify the Trust Account due to claims of creditors by endeavoring to have all vendors, service providers, prospective target businesses and other entities with which the Company does business, execute agreements with the Company waiving any right, title, interest or claim of any kind in or to monies held in the Trust Account.

Affiliates of the Company’s Co-Chairs (the “forward purchasers”) have entered into forward purchase agreements with the Company which provides for the purchase by the forward purchasers of shares of Class A common stock in an aggregate share amount equal to 5,000,000 shares of Class A common stock, plus an aggregate of 1,666,667 warrants exercisable to purchase one share of Class A common stock at $11.50 per share, subject to adjustment, for an aggregate purchase price of $50,000,000, or $10.00 for one share of Class A common stock and one-third of one warrant, in a private placement to occur concurrently with the closing of the initial business combination. The warrants to be issued as part of the forward purchase agreements will be identical to the warrants sold as part of the units in the initial public offering. The obligations under the forward purchase agreements do not depend on whether any shares of Class A common stock are redeemed by the Company’s public stockholders.

Basis of presentation

The accompanying financial statement is presented in U.S. dollars in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and pursuant to the rules and regulations of the SEC.

Emerging growth company

The Company is an “emerging growth company,” as defined in Section 2(a) of the Securities Act, as modified by the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”), and it may take advantage of certain exemptions from various reporting requirements that are applicable to other public companies that are not emerging growth companies including, but not limited to, not being required to comply with the independent registered public accounting firm attestation requirements of Section 404 of the Sarbanes-Oxley Act, reduced disclosure obligations regarding executive compensation in its periodic reports and proxy statements, and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and stockholder approval of any golden parachute payments not previously approved.

Further, Section 102(b)(1) of the JOBS Act exempts emerging growth companies from being required to comply with new or revised financial accounting standards until private companies (that is, those that have not had a Securities Act registration statement declared effective or do not have a class of securities registered under the Exchange Act) are required to comply with the new or revised financial accounting standards. The JOBS Act provides that an emerging growth company can elect to opt out of the extended transition period and comply with the requirements that apply to non-emerging growth companies but any such an election to opt out is irrevocable. The Company has elected not to opt out of such extended transition period, which means that when a standard is issued or revised and it has different application dates for public or private companies, the Company, as an emerging growth company, can adopt the new or revised standard at the time private companies adopt the new or revised standard. This may make comparison of the Company’s financial statements with another public company that is neither an emerging growth company nor an emerging growth company that has opted out of using the extended transition period difficult or impossible because of the potential differences in accounting standards used.

F-6

SUPERNOVA PARTNERS ACQUISITION COMPANY, INC.

NOTES TO FINANCIAL STATEMENT

Liquidity and capital resources

As of October 23, 2020, the Company had approximately $1.8 million in cash, and working capital of approximately $1.5 million (not taken into account tax obligations).

The Company’s liquidity needs prior to the consummation of the Initial Public Offering were satisfied through the payment of $25,000 from the Sponsor to cover for certain offering costs on behalf of the Company in exchange for issuance of Founders Shares (as defined in Note 4), and loan proceeds from the Sponsor of approximately $183,000 under the Note (Note 4). The Company repaid the Note in full on October 23, 2020. Subsequent from the consummation of the Initial Public Offering, the Company’s liquidity has been satisfied through the net proceeds from the consummation of the Initial Public Offering and the Private Placement held outside of the Trust Account.

Based on the foregoing, management believes that the Company will have sufficient working capital and borrowing capacity to meet its needs through the earlier of the consummation of a Business Combination or one year from this filing. Over this time period, the Company will be using the funds held outside of the Trust Account for paying existing accounts payable, identifying and evaluating prospective initial Business Combination candidates, performing due diligence on prospective target businesses, paying for travel expenditures, selecting the target business to merge with or acquire, and structuring, negotiating and consummating the Business Combination.

Note 2—Summary of significant accounting policies

Cash and Cash Equivalents

The Company considers all short-term investments with an original maturity of three months or less when purchased to be cash equivalents. The Company had no cash equivalents as of October 23, 2020.

Cash Held in Trust Account

At October 23, 2020, the Company had $402.5 million in cash held in the Trust Account.

Concentration of Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist of cash accounts in a financial institution, which, at times, may exceed the Federal Depository Insurance Coverage limit of $250,000. At October 23, 2020, the Company has not experienced losses on these accounts and management believes the Company is not exposed to significant risks on such account.

Financial instruments

The fair value of the Company’s assets and liabilities, which qualify as financial instruments under FASB ASC 820, “Fair Value Measurements and Disclosures,” approximates the carrying amounts represented in the balance sheet.

Use of estimates

The preparation of financial statement in conformity with U.S. GAAP requires the Company’s management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statement.

Offering costs associated with the Initial Public Offering

Offering costs consisted of legal, accounting, underwriting fees and other costs incurred through the balance sheet date that are directly related to the Initial Public Offering and that were charged to stockholders’ equity upon the completion of the Initial Public Offering.

F-7

SUPERNOVA PARTNERS ACQUISITION COMPANY, INC.

NOTES TO FINANCIAL STATEMENT

Class A Common Stock Subject to Possible Redemption

The Company accounts for its Class A common stock subject to possible redemption in accordance with the guidance in ASC Topic 480 “Distinguishing Liabilities from Equity.” Class A common stock subject to mandatory redemption (if any) is classified as liability instruments and are measured at fair value. Conditionally redeemable Class A common stock (including Class A common stock that features redemption rights that are either within the control of the holder or subject to redemption upon the occurrence of uncertain events not solely within the Company’s control) are classified as temporary equity. At all other times, Class A common stock is classified as stockholders’ equity. The Company’s Class A common stock feature certain redemption rights that are considered to be outside of the Company’s control and subject to the occurrence of uncertain future events. Accordingly, at October 23, 2020, 38,473,988 shares of Class A common stock subject to possible redemption is presented at redemption value as temporary equity, outside of the stockholders’ equity section of the Company’s balance sheet.

Income taxes

The Company follows the asset and liability method of accounting for income taxes under FASB ASC 740, “Income Taxes.” Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statements carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that included the enactment date. Valuation allowances are established, when necessary, to reduce deferred tax assets to the amount expected to be realized. Deferred tax assets were deemed immaterial as of October 23, 2020.

FASB ASC 740 prescribes a recognition threshold and a measurement attribute for the financial statement recognition and measurement of tax positions taken or expected to be taken in a tax return. For those benefits to be recognized, a tax position must be more likely than not to be sustained upon examination by taxing authorities. There were no unrecognized tax benefits as of October 23, 2020. The Company recognizes accrued interest and penalties related to unrecognized tax benefits as income tax expense. No amounts were accrued for the payment of interest and penalties as of October 23, 2020. The Company is currently not aware of any issues under review that could result in significant payments, accruals or material deviation from its position. The Company is subject to income tax examinations by major taxing authorities since inception.

The provision for income taxes was deemed to be de minimis for the period from August 31, 2020 (inception) through October 23, 2020.

Recent accounting pronouncements

The Company’s management does not believe that any recently issued, but not yet effective, accounting standards if currently adopted would have a material effect on the accompanying financial statement.

Note 3—Initial Public Offering

On October 23, 2020, the Company consummated its Initial Public Offering of 40,250,000 Units, including 5,250,000 Over-Allotment Units, at $10.00 per Unit, generating gross proceeds of $402.5 million, and incurring offering costs of approximately $22.8 million, inclusive of approximately $14.1 million in deferred underwriting commissions.

Each Unit consists of one share of Class A common stock, and one-third of one redeemable warrant (each, a “Public Warrant”). Each Public Warrant entitles the holder to purchase one share of Class A common stock at a price of $11.50 per share, subject to adjustment (see Note 6).

F-8

SUPERNOVA PARTNERS ACQUISITION COMPANY, INC.

NOTES TO FINANCIAL STATEMENT

Note 4—Related party transactions

Founder shares

On September 9, 2020, the Sponsor paid $25,000 to cover for certain offering costs on behalf of the Company in exchange for issuance of 11,500,000 shares of the Company’s Class B common stock, par value $0.0001 per share, (the “Founder Shares”). On September 14, 2020, the Company effectuated an 0.75-for-1 reverse split of the Founder Shares, resulting in an aggregate outstanding amount of 8,625,000 Founder Shares. On October 20, 2020, the Company effectuated a 6-for-7 stock split of the founder shares, resulting in an aggregate outstanding amount of 10,062,500 Founder Shares (see Note 7). All shares and associated amounts have been adjusted to reflect the stock splits. The initial stockholders agreed to forfeit, after giving effect to the stock split that occurred on October 20, 2020, up to 1,312,500 Founder Shares to the extent that the over-allotment option was not exercised in full by the underwriters, so that the Founder Shares would represent 20.0% of the Company’s issued and outstanding shares after the Initial Public Offering. The underwriter exercised its over-allotment option in full on October 23, 2020; thus, these 1,312,500 Founder Shares were no longer subject to forfeiture.

The initial stockholders agreed, subject to limited exceptions, not to transfer, assign or sell any of the Founder Shares until the earlier to occur of: (1) one year after the completion of the initial Business Combination and (2) the date on which the Company consummates a liquidation, merger, capital stock exchange, reorganization, or other similar transaction after the initial Business Combination that results in all of the stockholders having the right to exchange their shares of common stock for cash, securities or other property. Notwithstanding the foregoing, if the last reported sale price of the common stock shares 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 initial Business Combination, the Founder Shares will be released from the lock-up.

Private placement warrants

Simultaneously with the closing of the Initial Public Offering, the Company consummated the Private Placement of 6,700,000 Private Placement Warrants at a price of $1.50 per Private Placement Warrant to the Sponsor, generating proceeds of approximately $10.1 million.

Each whole Private Placement Warrant is exercisable for one whole share of Class A common stock at a price of $11.50 per share. A portion of the proceeds from the sale of the Private Placement Warrants to the Sponsor was added to the proceeds from the Initial Public Offering to be held in the Trust Account. If the Company does not complete a Business Combination within the Combination Period, the Private Placement Warrants will expire worthless. The Private Placement Warrants will be non-redeemable for cash (except in certain limited circumstances) and exercisable on a cashless basis so long as they are held by the Sponsor or its permitted transferees.

The Sponsor and the Company’s officers and directors agreed, subject to limited exceptions, not to transfer, assign or sell any of their Private Placement Warrants until 30 days after the completion of the initial Business Combination.

Related party loans

On September 9, 2020, the Sponsor agreed to loan the Company an aggregate of up to $300,000 to cover expenses related to the Initial Public Offering pursuant to a promissory note (the “Note”). This loan is non-interest bearing and payable upon the completion of the Initial Public Offering. The Company borrowed approximately $183,000 under the Note and fully repaid the Note in full on October 23, 2020.

In addition, in order to fund working capital deficiencies or finance transaction costs in connection with a Business Combination, the Sponsor or an affiliate of the Sponsor, or certain of the Company’s officers and directors may, but are not obligated to, loan the Company funds as may be required (“Working Capital Loans”). If the Company completes a Business Combination, the Company may repay the Working Capital Loans out of the proceeds of the Trust Account released to the Company. Otherwise, the Working Capital Loans would be repaid only out of funds held outside the Trust Account. In the event that a Business Combination does not close, the Company may use a portion of proceeds held outside the Trust Account to repay the Working Capital Loans but no proceeds held in the Trust Account would be used to repay the Working Capital Loans. The Working Capital Loans

F-9

SUPERNOVA PARTNERS ACQUISITION COMPANY, INC.

NOTES TO FINANCIAL STATEMENT

would either be repaid upon consummation of a Business Combination or, at the lender’s discretion, up to $1.5 million of such Working Capital Loans may be convertible into warrants of the post Business Combination entity at a price of $1.50 per warrant. The warrants would be identical to the Private Placement Warrants. Except for the foregoing, the terms of such Working Capital Loans, if any, have not been determined and no written agreements exist with respect to such loans. To date, the Company had no borrowings under the Working Capital Loans.

Note 5—Commitments and contingencies

Registration rights

The holders of Founder Shares, Private Placement Warrants and warrants that may be issued upon conversion of Working Capital Loans, if any (and any shares of Class A common stock issuable upon the exercise of the Private Placement Warrants and warrants that may be issued upon conversion of Working Capital Loans and upon conversion of the Founder Shares), are entitled to registration rights pursuant to a registration rights agreement. These holders are entitled to certain demand and “piggyback” registration rights. The Company will bear the expenses incurred in connection with the filing of any such registration statements.

Underwriting agreement

The underwriters were entitled to an underwriting discount of $0.20 per unit, or approximately $8.1 million in the aggregate, paid upon the closing of the Initial Public Offering. In addition, $0.35 per unit, or approximately $14.1 million in the aggregate will be payable to the underwriters for deferred underwriting commissions.

The deferred fee will become payable to the underwriters from the amounts held in the Trust Account solely in the event that the Company completes a Business Combination, subject to the terms of the underwriting agreement.

Risks and uncertainties

Management continues to evaluate the impact of the COVID-19 pandemic on the industry and has concluded that while it is reasonably possible that the virus could have a negative effect on the Company’s financial position, results of its operations and/or search for a target company, the specific impact is not readily determinable as of the date of these financial statements. The financial statements do not include any adjustments that might result from the outcome of this uncertainty.

Note 6—Stockholders’ equity

Class A Common Stock—The Company is authorized to issue 100,000,000 shares of Class A common stock with a par value of $0.0001 per share. As of October 23, 2020, there were 40,250,000 shares of Class A common stock issued or outstanding including 38,473,988 shares subject to possible redemption.

Class B Common Stock—The Company is authorized to issue 20,000,000 shares of Class B common stock with a par value of $0.0001 per share. On September 9, 2020, the Company issued 11,500,000 shares of Class B common stock. On September 14, 2020, the Company effectuated an 0.75-for-1 reverse split of the Founder Shares, resulting in an aggregate outstanding amount of 8,625,000 Founder Shares. On October 20, 2020, the Company effectuated a 6-for-7 stock split of the founder shares, resulting in an aggregate outstanding amount of 10,062,500 Founder Shares. All shares and associated amounts have been adjusted to reflect the stock splits. Of these, up to 1,312,500 shares of Class B common stock are subject to forfeiture, to the Company by the initial stockholders for no consideration to the extent that the underwriter’s over-allotment option is not exercised in full or in part, so that the number of shares of Class B common stock would collectively equal 20% of the Company’s issued and outstanding common stock after the Initial Public Offering. The underwriter exercised its over-allotment option in full on October 23, 2020; thus, these 1,312,500 shares of Class B common stock were no longer subject to forfeiture.

Only holders of Class B common stock will have the right to elect directors or remove directors prior to the completion of the initial Business Combination. These provisions in the amended and restated certificate of incorporation may only be amended by a resolution passed by the holders of a majority of the Class B common stock. Holders of the Class A common stock and holders of the Class B common stock of record are entitled to one vote for each share held on all other matters to be voted on by stockholders, including any vote in connection with the initial Business Combination, and vote together as a single class, except as required by law or the applicable rules of the NYSE.

F-10

SUPERNOVA PARTNERS ACQUISITION COMPANY, INC.

NOTES TO FINANCIAL STATEMENT

The Class B common stock will automatically convert into Class A common stock at the time of the initial Business Combination on a one-for-one basis, subject to increase in respect of the issuance of certain securities, as provided herein. In the case that additional shares of Class A common stock, or equity-linked securities, are issued or deemed issued in excess of the amount issued in the Initial Public Offering and related to the closing of the initial Business Combination, the ratio at which shares of Class B common stock shall convert into shares of Class A common stock will be adjusted (unless the holders of a majority of the outstanding shares of Class B common stock agree to waive such adjustment with respect to any such issuance or deemed issuance) so that the number of shares of Class A common stock issuable upon conversion of all shares of Class B common stock will equal, in the aggregate, on an as-converted basis, 20% of the aggregate number of all shares of common stock outstanding upon the completion of the Initial Public Offering, plus the aggregate number of shares of Class A common stock and equity-linked securities issued or deemed issued in connection with the initial Business Combination (net of the number of shares of Class A common stock redeemed in connection with the initial Business Combination), excluding the forward purchase securities and any shares or equity-linked securities issued, or to be issued, to any seller in the initial Business Combination and any private placement warrants issued to the Sponsor, an affiliate of our sponsor or any of the Company’s officers or director.

Preferred Stock—The Company is authorized to issue 1,000,000 shares of preferred stock, par value $0.0001 per share, with such designations, voting and other rights and preferences as may be determined from time to time by the Company’s board of directors. As of October 23, 2020, there were no shares of preferred stock issued or outstanding.

Warrants—Public Warrants may only be exercised in whole and only for a whole number of shares. No fractional Public Warrants will be issued upon separation of the Units and only whole Public Warrants will trade. The Public Warrants will become exercisable on the later of (a) 30 days after the completion of a Business Combination and (b) 12 months from the closing of the Initial Public Offering; provided in each case that the Company has an effective registration statement under the Securities Act covering the issuance of the shares of Class A common stock issuable upon exercise of the Public Warrants and a current prospectus relating to them is available (or the Company permits holders to exercise their Public Warrants on a cashless basis and such cashless exercise is exempt from registration under the Securities Act). The Company has agreed that as soon as practicable, but in no event later than 20 business days after the closing of the initial Business Combination, the Company will use its commercially reasonable efforts to file with the SEC and have an effective registration statement covering the shares of Class A common stock issuable upon exercise of the warrants and to maintain a current prospectus relating to those shares of Class A common stock until the warrants expire or are redeemed. If a registration statement covering the Class A common stock issuable upon exercise of the warrants is not effective by the 60th business day after the closing of the initial Business Combination, warrant holders may, until such time as there is an effective registration statement and during any period when the Company will have failed to maintain an effective registration statement, exercise warrants on a “cashless basis” in accordance with Section 3(a)(9) of the Securities Act or another exemption. Notwithstanding the above, if the Company’s shares of Class A common stock are at the time of any exercise of a warrant not listed on a national securities exchange such that they satisfy the definition of a “covered security” under Section 18(b)(1) of the Securities Act, the Company may, at its option, require holders of Public Warrants who exercise their warrants to do so on a “cashless basis” in accordance with Section 3(a)(9) of the Securities Act and, in the event the Company so elect, it will not be required to file or maintain in effect a registration statement, and in the event the Company does not so elect, it will use commercially reasonable efforts to register or qualify the shares under applicable blue sky laws to the extent an exemption is not available. The Public Warrants will expire five years after the completion of a Business Combination or earlier upon redemption or liquidation.

The warrants have an exercise price of $11.50 per share, subject to adjustments. In addition, if (x) the Company issues additional shares of Class A common stock or equity-linked securities (excluding the potential forward purchase securities as described in the prospectus) for capital raising purposes in connection with the closing of the initial Business Combination at an issue price or effective issue price of less than $9.20 per share of Class A common stock (with such issue price or effective issue price to be determined in good faith by the board of directors and, in the case of any such issuance to the Sponsor or its affiliates, without taking into account any Founder Shares held by the Sponsor or such affiliates, as applicable, prior to such issuance) (the “Newly Issued Price”), (y) the aggregate gross proceeds from such issuances represent more than 60% of the total equity proceeds, and interest thereon, available for

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SUPERNOVA PARTNERS ACQUISITION COMPANY, INC.

NOTES TO FINANCIAL STATEMENT

the funding of the initial Business Combination on the date of the consummation of the initial Business Combination (net of redemptions), and (z) the volume-weighted average trading price of the Class A common stock during the 10-trading day period starting on the trading day after the day on which the Company consummated the initial business Combination (such price, the “Market Value”) is below $9.20 per share, then the exercise price of the warrants will be adjusted (to the nearest cent) to be equal to 115% of the higher of the Market Value and the Newly Issued Price, and the $18.00 per share redemption trigger price described below under “Redemption of warrants when the price per share of Class A common stock equals or exceeds $18.00” will be adjusted (to the nearest cent) to be equal to 180% of the higher of the Market Value and the Newly Issued Price, and the $10.00 per share redemption trigger price will be adjusted (to the nearest cent) to be equal to the higher of the Market Value and the Newly Issued Price.

The Private Placement Warrants are identical to the Public Warrants, except that the Private Placement Warrants and the shares of Class A common stock issuable upon exercise of the Private Placement Warrants will not be transferable, assignable or salable until 30 days after the completion of a Business Combination, subject to certain limited exceptions. Additionally, the Private Placement Warrants will be non-redeemable so long as they are held by the Sponsor or its permitted transferees, except in certain limited circumstances. If the Private Placement Warrants are held by someone other than the Sponsor or its permitted transferees, the Private Placement Warrants will be redeemable by the Company and exercisable by such holders on the same basis as the Public Warrants.

Redemption of warrants when the price per share of Class A common stock equals or exceeds $18.00:     Once the warrants become exercisable, the Company may redeem the outstanding warrants (except as described herein with respect to the Private Placement Warrants):

The Company will not redeem the warrants as described above unless a registration statement under the Securities Act covering the issuance of the shares of Class A common stock issuable upon exercise of the warrants is then effective and a current prospectus relating to those shares of common stock is available throughout the 30-day redemption period, except if the warrants may be exercised on a cashless basis and such cashless exercise is exempt from registration under the Securities Act.

Redemption of warrants when the price per share of Class A common stock equals or exceeds $10.00:    Once the warrants become exercisable, the Company may redeem the outstanding warrants:

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SUPERNOVA PARTNERS ACQUISITION COMPANY, INC.

NOTES TO FINANCIAL STATEMENT

The “fair market value” of Class A common stock shall mean the volume-weighted average price of Class A common stock for the 10 trading days ending on the third trading day prior to the date on which the notice of redemption is sent to the holders of warrants. In no event will the warrants be exercisable in connection with this redemption feature for more than 0.361 shares of Class A common stock per warrant (subject to adjustment).

In no event will the Company be required to net cash settle any warrant. If the Company is unable to complete a Business Combination within the Combination Period and the Company liquidates the funds held in the Trust Account, holders of warrants will not receive any of such funds with respect to their warrants, nor will they receive any distribution from the Company’s assets held outside of the Trust Account with the respect to such warrants. Accordingly, the warrants may expire worthless.

Note 7—Subsequent events

The Company evaluated events that have occurred after the balance sheet date through the date on which the financial statement is issued. Based upon this review, the Company did not identify any other subsequent events that would have required adjustment or disclosure in the financial statement.

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