NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

Note 1 — Description of Organization and Business Operations

FS Development Corp. II (the “Company”) is a blank check company incorporated in Delaware on August 21, 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 March 31, 2021, the Company had not commenced any operations. All activity for the period from August 21, 2020 (inception) through March 31, 2021 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 FS Development Holdings II, LLC, a Delaware limited liability company (the “Sponsor”). The registration statements for the Company’s Initial Public Offering became effective on February 16, 2021. On February 19, 2021, the Company consummated its Initial Public Offering of 20,125,000 shares of Class A common stock, including the issuance of 2,625,000 shares of Class A common stock as a result of the underwriter’s exercise in full of its over-allotment option, (each, a “Public Share” and collectively, the “Public Shares”) at $10.00 per share, generating gross proceeds of approximately $201.3 million, and incurring offering costs of approximately $11.5 million, of which approximately $7.0 million was for deferred underwriting commissions (Note 5).

Simultaneously with the closing of the Initial Public Offering, the Company consummated the private placement (“Private Placement”) of 602,500 shares of Class A common stock (each, a “Private Placement Share” and collectively, the “Private Placement Shares”), at a price of $10.00 per Private Placement Share to the Sponsor, generating proceeds of approximately $6.0 million (Note 4).

Upon the closing of the Initial Public Offering and the Private Placement, approximately $201.3 million ($10.00 per Unit) of the net proceeds of the sale of the Public Shares in the Initial Public Offering and of the Private Placement Shares in the Private Placement were placed in a trust account (“Trust Account”) located in the United States, with Continental Stock Transfer & Trust Company acting as trustee, and will be invested only in U.S. “government securities” within the meaning of Section 2(a)(16) of the Investment Company Act having a maturity of 185 days or less or in money market funds meeting certain conditions under Rule 2a-7 promulgated under the Investment Company Act of 1940, as amended (the “Investment Company Act”), which will be invested 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 Shares, 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 the deferred underwriting commissions and taxes payable on the interest 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 voting securities of the target or otherwise acquires a controlling interest in the target sufficient for it not to be required to register as an investment company under the Investment Company Act of 1940, as amended (the “Investment Company Act”).

FS DEVELOPMENT CORP. II

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

The Company will provide the holders (the “Public Stockholders”) of the 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. 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 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 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 law and the Company does not decide to hold a stockholder vote for business or other legal reasons, the Company will, pursuant to its Amended and Restated Certificate of Incorporation (the “Certificate of Incorporation”), conduct the redemptions pursuant to the tender offer rules of the U.S. Securities and Exchange Commission (“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) agreed to vote their Founder Shares (as defined below in Note 4), their Private Placement Shares and any Public Shares purchased during or after the Initial Public Offering in favor of a Business Combination. In addition, the Initial Stockholders agreed to waive their redemption rights with respect to their Founder Shares, their Private Placement Shares and Public Shares in connection with the completion of a Business Combination.

The Certificate of Incorporation provides 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 20% of the Public Shares, without the prior consent of the Company.

The Sponsor and the Company’s officers and directors (the “Initial Stockholders”) agreed not to propose an amendment to the Certificate of Incorporation to modify the substance or timing of the Company’s obligation to redeem 100% of the Public Shares if the Company does not complete a Business Combination within the Combination Period (as defined below) or with respect to any other material 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 February 19, 2023, or during any extended period of time that the Company may have to consummate a Business Combination as a result of an amendment to the Certificate of Incorporation (the “Combination Period”), the Company will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than ten business days thereafter, redeem 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 and not previously released to the Company to pay its taxes (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 (iii) as promptly as reasonably possible following such redemption, subject to the approval of the remaining stockholders and the board of directors, liquidate and dissolve, 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.

FS DEVELOPMENT CORP. II

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

The Initial Stockholders agreed to waive their rights to liquidating distributions from the Trust Account with respect to the Founder Shares and Private Placement 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 underwriter has agreed to waive its 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 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. In order to protect the amounts held in the Trust Account, the Sponsor 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) nor 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 or 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.

Liquidity and Capital Resources

As of March 31, 2021, the Company had approximately $958,000 in cash, and working capital of approximately $1,518,000 (not taking into account franchise tax obligations of approximately $49,000 that may be paid using investment income earned in Trust Account).

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 Founder Shares (as defined in Note 4), and loan proceeds from the Sponsor of approximately $200,000 under the Note (Note 4). The Company repaid the Note in full on February 19, 2021. 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

Basis of Presentation

The accompanying unaudited condensed financial statements are presented in U.S. dollars in conformity with accounting principles generally accepted in the United States of America (“GAAP”) for financial information and pursuant to the rules and regulations of the SEC. Accordingly, they do not include all of the information and footnotes required by GAAP. In the opinion of management, the unaudited condensed financial statements reflect all adjustments, which include only normal recurring adjustments necessary for the fair statement of the balances and results for the periods presented. Operating results for the three months ended March 31, 2021 are not necessarily indicative of the results that may be expected through December 31, 2021.

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.

FS DEVELOPMENT CORP. II

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

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 statement 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.

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. As of March 31, 2021 and December 31, 2020, the Company has not experienced losses on these accounts and management believes the Company is not exposed to significant risks on such accounts.

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 March 31, 2021 and December 31, 2020.

Cash Held in Trust Account

As of March 31, 2021, the Company had approximately $201.3 million in cash held in the Trust Account.

Use of Estimates

The preparation of financial statement in conformity with 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 statements and the reported amounts of revenues and expenses during the reported period. Making estimates requires management to exercise significant judgment. It is at least reasonably possible that the estimate of the effect of a condition, situation or set of circumstances that existed at the date of the financial statements, which management considered in formulating its estimate, could change in the near term due to one or more future confirming events. Accordingly, the actual results could differ significantly from those estimates.

Fair Value Measurements

Fair value is defined as the price that would be received for sale of an asset or paid for transfer of a liability, in an orderly transaction between market participants at the measurement date. GAAP establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). These tiers include:

FS DEVELOPMENT CORP. II

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

In some circumstances, the inputs used to measure fair value might be categorized within different levels of the fair value hierarchy. In those instances, the fair value measurement is categorized in its entirety in the fair value hierarchy based on the lowest level input that is significant to the fair value measurement.

As of March 31, 2021, the carrying values of cash, accounts payable and accrued expenses approximate their fair values due to the short-term nature of the instruments. The Company’s marketable securities held in Trust Account is comprised of investments in U.S. Treasury securities with an original maturity of 185 days or less and are recognized at fair value. The fair value of marketable securities held in Trust Account is determined using quoted prices in active markets.

Offering Costs Associated with the Initial Public Offering

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

Class A Common Shares 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, on March 31, 2021, 19,067,529 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 condensed balance sheets.

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 statement 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 March 31, 2021 and December 31, 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 March 31, 2021. 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 March 31, 2021. 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 three month period ended March 31, 2021.

FS DEVELOPMENT CORP. II

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

Net loss per common share

Net loss per common share is computed by dividing net loss by the weighted-average number of common shares outstanding during the periods.

The Company’s unaudited condensed statements of operations include a presentation of loss per share for common shares subject to redemption in a manner similar to the two-class method of income per share. Net loss per common share, basic and diluted for Class A common shares for the three months ended March 31, 2021 is calculated by dividing the gain on marketable securities, dividends and interest held in Trust Account of $331, by the weighted average number of Class A common shares outstanding for the period.

Net loss per common share, basic and diluted for Class B common shares for the three months ended March 31, 2021 is calculated by dividing the net loss of approximately $168,000, less net gain attributable to Class A common shares resulting in a net loss of approximately $168,000, by the weighted average number of Class B common shares outstanding for the period.

Recent Accounting Pronouncements

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 unaudited condensed financial statements.

Note 3 — Initial Public Offering

On February 19, 2021, the Company consummated its Initial Public Offering of 20,125,000 Public Shares, including the issuance of 2,625,000 shares as a result of the underwriter’s exercise in full of its over-allotment option, at $10.00 per share, generating gross proceeds of approximately $201.3 million, and incurring offering costs of approximately $11.5 million, of which approximately $7.0 million was for deferred underwriting commissions.

Note 4 — Related Party Transactions

Founder Shares and Private Placement Shares

On August 26, 2020, the Sponsor paid $25,000 to cover certain offering costs on behalf of the Company in consideration of 2,875,000 shares of the Company’s Class B common stock, par value $0.0001 per share, (the “Founder Shares”). On January 22, 2021, the Sponsor transferred 30,000 Founder Shares to each of Dr. Dubin, Mr. Hughes and Dr. Pakianathan, at their original per-share purchase price, for an aggregate of 90,000 Founder Shares transferred. On February 5, 2021, the Company effected a 1:1½ stock split of the Class B common stock and on February 16, 2021, the Company effected a 1:1¹/₆ stock split of the Class B common stock, resulting in the Sponsor holding an aggregate of 4,941,250 Founder Shares and there being an aggregate of 5,031,250 Founder Shares outstanding. The Sponsor agreed to forfeit up to 656,250 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 of common stock after the Initial Public Offering (excluding the Private Placement Shares). On February 19, 2021, the underwriter exercised its over-allotment option; thus, these 656,250 Founder Shares are no longer subject to forfeiture.

Simultaneously with the closing of the Initial Public Offering, the Company consummated the Private Placement of 602,500 Private Placement Shares, at a price of $10.00 per Private Placement Share to the Sponsor, generating proceeds of approximately $6.0 million.

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: (i) one year after the completion of the initial Business Combination and (ii) the date following the completion of the initial Business Combination on which the Company completes a liquidation, merger, capital stock exchange or other similar transaction that results in all of the stockholders having the right to exchange their common stock for cash, securities or other property and the Sponsor agreed not to transfer, assign or sell any of its Private Placement Shares until 30 days after the completion of the initial Business Combination. Notwithstanding the foregoing, if the closing price of the Class A common stock equals or exceeds $12.00 per share (as adjusted for stock splits, stock capitalizations, 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 lockup.

FS DEVELOPMENT CORP. II

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

Related Party Loans

On August 26, 2020, the Sponsor agreed to loan the Company an aggregate of up to $200,000 to cover expenses related to the Initial Public Offering pursuant to a promissory note, as amended (the “Note”). This loan was non-interest bearing and payable upon the completion of the Initial Public Offering. The Company borrowed $200,000 under the Note and fully repaid it on February 19, 2021.

In addition, in order to 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 would 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 would either be repaid upon consummation of a Business Combination or, at the lenders’ discretion, up to $1.5 million of such Working Capital Loans may be convertible into shares of Class A common stock of the post-Business Combination entity at a price of $10.00 per share. 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. As of March 31, 2021 and December 31, 2020, the Company had no borrowings under the Working Capital Loans.

Private Placement of Common Stock in connection with initial Business Combination

The Sponsor has indicated an interest to purchase $25.0 million of the Company’s Class A common stock in a private placement that would occur concurrently with the consummation of the initial Business Combination. The funds from such private placement would be used as part of the consideration to the sellers in the initial Business Combination, and any excess funds from such private placement would be used for working capital in the post-transaction company. However, because indications of interest are not binding agreements or commitments to purchase, the Sponsor may determine not to purchase any such shares, or to purchase fewer shares than it indicated an interest in purchasing. Furthermore, the Company is not under any obligation to sell any such shares.

Administrative Services Agreement

Commencing on the date that the Company’s securities were first listed on Nasdaq and continuing until the earlier of the Company’s consummation of a Business Combination and the Company’s liquidation, the Company agreed to pay the Sponsor a total of $10,000 per month for office space, secretarial and administrative services provided to members of the Company’s management team. The Company incurred approximately $10,000 in administrative expenses under the agreement, which is recognized in the accompanying unaudited condensed statement of operations for the three months ended March 31, 2021 within general and administrative expense – related party. As of March 31, 2021, there was no outstanding balance in accounts payable with related party, as reflected in the accompanying condensed balance sheets.

The Sponsor, officers and directors, or any of their respective affiliates will be reimbursed for any out-of-pocket expenses incurred in connection with activities on the Company’s behalf such as identifying potential target businesses and performing due diligence on suitable Business Combinations. The Company’s audit committee will review on a quarterly basis all payments that were made to the Sponsor, officers or directors, or their affiliates.

Note 5 — Commitments and Contingencies

Registration Rights

The holders of Founder Shares, Private Placement Shares, and shares of Class A common stock that may be issued upon conversion of Working Capital Loans, if any, are entitled to registration rights pursuant to a registration rights agreement. The holders of these securities are entitled to make up to three demands, excluding short form demands, that the Company register such securities. In addition, the holders have certain “piggy-back” registration rights with respect to registration statements filed subsequent to the completion of the initial Business Combination. The Company will bear the expenses incurred in connection with the filing of any such registration statements.

FS DEVELOPMENT CORP. II

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

Underwriting Agreement

The Company granted the underwriter a 45-day option from the date of the final prospectus relating to the Proposed Public Offering to purchase up to 2,625,000 additional shares of Class A common stock to cover over-allotments, if any, at the Proposed Public Offering price, less underwriting discounts and commissions. The underwriter exercised its over-allotment option in full on February 19, 2021.

The underwriter was entitled to an underwriting discount of $0.20 per share, or approximately $4.0 million in the aggregate, paid upon the closing of the Initial Public Offering. In addition, $0.35 per share, or approximately $7.0 million in the aggregate will be payable to the underwriters for deferred underwriting commissions. The deferred fee will become payable to the underwriter 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 statement. The financial statement does not include any adjustments that might result from the outcome of this uncertainty.

Note 6 — Stockholders’ Equity

Preferred Stock— The Company is authorized to issue 1,000,000 shares of preferred stock with a par value of $0.0001 per share. At March 31, 2021 and December 31, 2020, there were no shares of preferred stock issued or outstanding.

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 March 31, 2021, there were 1,659,971 shares of Class A common stock issued or outstanding, excluding 19,067,529 shares subject to possible redemption. As of December 31, 2020, there was no Class A common stock issued or outstanding.

Class B Common Stock — The Company is authorized to issue 10,000,000 shares of Class B common stock with a par value of $0.0001 per share. On August 26, 2020, the Company issued 2,875,000 shares of Class B common stock. On February 5, 2021, the Company effected a 1:1½ stock split of the Class B common stock and on February 16, 2021, the Company effected a 1:1¹/₆ stock split of the Class B common stock, resulting in an aggregate of 5,031,250 shares of Class B common stock outstanding. Of the 5,031,250 shares of Class B common stock outstanding, up to 656,250 shares of Class B common stock were subject to forfeiture by the Sponsor to the Company for no consideration to the extent that the underwriter’s over-allotment option was not exercised in full or in part, so that the Founder Shares would represent 20% of the Company’s issued and outstanding common stock after the Initial Public Offering (excluding the Private Placement Shares). The underwriter exercised its over-allotment option in full on February 19, 2021; thus, these 656,250 shares of Class B common stock are no longer subject to forfeiture. Holders of record of Class A common stock and Class B common stock will vote together as a single class on all matters submitted to a vote of the stockholders, with each share of common stock entitling the holder to one vote except as required by law.

The Class B common stock will automatically convert into Class A common stock concurrently with or immediately following the consummation of the initial Business Combination on a one-for-one basis, subject to adjustment for stock splits, stock dividends, reorganizations, recapitalizations and the like, and subject to further adjustment as provided herein. In the case that additional shares of Class A common stock or equity-linked securities are issued or deemed issued in connection with the initial Business Combination, the number of shares of Class A common stock issuable upon conversion of all Founder Shares will equal, in the aggregate, on an as-converted basis, 20% of the total number of shares of Class A common stock issued and outstanding (excluding the Private Placement Shares) after such conversion (after giving effect to any redemptions of shares of Class A common stock by Public Stockholders), including the total number of shares of Class A common stock issued, or deemed issued or issuable upon conversion or exercise of any equity-linked securities or rights issued or deemed issued, by the Company in connection with or in relation to the consummation of the initial Business Combination, excluding any shares of Class A common stock or equity-linked securities or rights exercisable for or convertible into shares of Class A common stock issued, or to be issued, to any seller in the initial Business Combination and any Private Placement Shares issued to the Sponsor, officers or directors upon conversion of Working Capital Loans, provided that such conversion of Founder Shares will never occur on a less than one-for-one basis.

FS DEVELOPMENT CORP. II

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

Note 7 — Fair Value Measurements

The following table presents information about the Company’s assets that are measured at fair value on a recurring basis as of March 31, 2021 and indicates the fair value hierarchy of the valuation techniques that the Company utilized to determine such fair value.

Transfers to/from Levels 1, 2, and 3 are recognized at the end of the reporting period. There were no transfers between levels of the hierarchy for the three months ended March 31, 2021. Level 1 instruments include investments U.S. Treasury securities with an original maturity of 185 days or less.