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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1707502	Solid Biosciences Inc.	SLDB	()	4

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1529297	T David Howton	C/O Solid Biosciences Inc. 500 Rutherford Avenue, Third Floor Charlestown MA 02129	Chief Operating Officer	No	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2025-02-13	14,687	$0.00	30,350	No	4	M	Direct
Common Stock	Disposition	2025-02-14	5,561	$3.96	24,789	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Restricted Stock Units	Disposition	2025-02-13	14,687	$0.00	14,687	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
44,063			No	4	M	Direct

Footnotes

Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock (the "RSUs").
This sale was made to cover withholding taxes following the vesting of the previously granted RSUs pursuant to a durable automatic sales instruction letter adopted by Mr. Howton on August 16, 2024 effecting the sell-to-cover election. The sale does not represent a discretionary trade by Mr. Howton.
The RSUs were granted on February 13, 2024 (the "Grant Date") and vest over four years, with 25% of the original number of shares vesting on each anniversary of the Grant Date until the fourth such anniversary.