Sec Form 4 Filing - Ganot Ilan @ Solid Biosciences Inc. - 2023-05-02

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Ganot Ilan 2. Issuer Name and Ticker or Trading Symbol Solid Biosciences Inc. [ SLDB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O SOLID BIOSCIENCES INC., 500 RUTHERFORD AVENUE 3. Date of Earliest Transaction (MM/DD/YY) 05/02/2023 (Street) CHARLESTOWN, MA02129 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 05/02/2023 M 1,553 A 4,640 ( 2 ) I Wife Common Stock 05/02/2023 S 487 ( 3 ) D $ 4.8541 4,153 ( 2 ) I Wife Common Stock 06/02/2023 M 1,583 A 87,758 D ( 4 ) Common Stock 19,394 I See Footnote ( 5 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Restricted Stock Units ( 1 ) 05/02/2023 M 1,553 ( 6 ) ( 6 ) Common Stock 1,553 $ 0 1,553 I Wife Restricted Stock Units ( 1 ) 06/02/2023 M 1,583 ( 7 ) ( 7 ) Common Stock 1,583 $ 0 3,166 D Director Stock Option (Right to Buy) $ 6.37 06/06/2023 A 9,650 ( 8 ) 06/06/2033 Common Stock 9,650 $ 0 9,650 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Ganot Ilan C/O SOLID BIOSCIENCES INC. 500 RUTHERFORD AVENUE CHARLESTOWN, MA02129 X Signatures /s/ David Tyronne Howton as attorney-in-fact for Ilan Ganot 06/08/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Restricted stock units convert into common stock on a one-for-one basis. ( 2 )Includes 1,709 shares of common stock acquired under the Solid Biosciences Inc. Employee Stock Purchase Plan on May 31, 2023. ( 3 )This sale was made to cover withholding taxes following the vesting of the previously granted restricted stock units. The shares were sold pursuant to a written instruction under Rule 10b5-1(c)(1). ( 4 )Represents 83,716 shares held by Mr. Ganot as an individual, and 4,042 shares held by Mr. Ganot and Annie Ganot as joint tenants with right of survivorship. ( 5 )Represents 19,394 shares held by Adam Ganot and Annie Ganot, and their successors, as the trustees for the Ilan Ganot 2017 Irrevocable Trust dated March 3, 2017. ( 6 )The restricted stock units were granted on May 2, 2022 and vest in two equal annual installments beginning on the first anniversary of the grant date. ( 7 )On December 2, 2022 (the "Grant Date"), Mr. Ganot was granted 6,333 restricted stock units, vesting in equal quarterly installments with the first installment vesting three months from the Grant Date and the final installment vesting date being the date that is 12 months from the Grant Date; provided that in the event of a change in control the restricted stock units shall accelerate in full. ( 8 )This option was granted on June 6, 2023 and vests in full on the earlier to occur of the one-year anniversary of the grant date and immediately prior to the Issuer's next annual meeting of stockholders occurring after the grant date, and will vest automatically as to 100% of the unvested portion of such option upon specified change in control events.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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