Sec Form 4 Filing - Ganot Ilan @ Solid Biosciences Inc. - 2024-01-03

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, THIRD FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 01/03/2024 (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 01/03/2024 M 2,993 A 9,309 I Wife Common Stock 01/03/2024 S 1,142 ( 2 ) D $ 5.2999 8,167 I Wife Common Stock 90,924 D ( 3 ) Common Stock 19,394 I See Footnote ( 4 )

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 Deriv ative 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 ) 01/03/2024 M 2,993 ( 5 ) ( 5 ) Common Stock 2,993 $ 0 8,982 I Wife

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Ganot Ilan C/O SOLID BIOSCIENCES INC. 500 RUTHERFORD AVENUE, THIRD FLOOR CHARLESTOWN, MA02129 X Signatures /s/ by David Tyrone Howton as attorney-in-fact for Ilan Ganot 01/05/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Restricted stock units convert to common stock on a one-for-one basis. ( 2 )This sale was made to cover withholding taxes following the vesting of the previously granted restricted stock units. The sales do not represent a discretionary trade by Ms. Ganot. ( 3 )Represents 86,882 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. ( 4 )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. ( 5 )On January 3, 2023 (the "Grant Date"), Ms. Ganot was granted 11,975 restricted stock units, vesting in four equal installments on the anniversary of the Grant Date.

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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