United States securities and exchange commission logo January 8, 2021 Dennis Ryan Chief Financial Officer FS Development Corp. 600 Montgomery Street, Suite 4500 San Francisco, California 94111 Re: FS Development Corp. Amendment No. 2 to Registration Statement on Form S-4 Filed December 28, 2020 File No. 333-249785 Dear Mr. Ryan: We have reviewed your amended registration statement and have the following comment. Please respond to this letter by amending your registration statement and providing the requested information. If you do not believe our comment applies to your facts and circumstances or do not believe an amendment is appropriate, please tell us why in your response. After reviewing any amendment to your registration statement and the information you provide in response to this comment, we may have additional comments. Unless we note otherwise, our references to prior comments are to comments in our December 18, 2020 letter Amendment No. 2 to Registration Statement on Form S-4 Management After the Business Combination Compensation Committee, page 178 1. We note your disclosure that the Board has determined that Mr. Tananbaum is not an independent director under the Nasdaq listing rules, but Mr. Tananbaum will serve on the compensation committee of the combined company pursuant to an exception provided in the listing rules. Please revise to disclose that a member appointed under this exception may not serve longer than two years. Dennis Ryan FirstName LastNameDennis Ryan FS Development Corp. Comapany January NameFS Development Corp. 8, 2021 January Page 2 8, 2021 Page 2 FirstName LastName You may contact Jenn Do at 202-551-3743 or Lynn Dicker at 202-551-3616 if you have questions regarding comments on the financial statements and related matters. Please contact Ada D. Sarmento at 202-551-3798 or Tim Buchmiller at 202-551-3635 with any other questions. Sincerely, Division of Corporation Finance Office of Life Sciences cc: Joel L. Rubinstein, Esq.