Solid Biosciences Inc. — Director's Dealing 2026

Feb 2, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Solid Biosciences Inc. (SLDB)
CIK: 0001707502
Period of Report: 2026-01-27

Reporting Person: Ganot Ilan (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-01-31	Common Stock	M	15000	—	Acquired	32476	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-01-29	Employee Stock Option (Right to Buy)	$6.6	A	70900	Acquired	2036-01-29	Common Stock (70900)	Indirect
2026-01-29	Restricted Stock Units	$	A	35450	Acquired		Common Stock (35450)	Indirect
2026-01-31	Restricted Stock Units	$	M	15000	Disposed		Common Stock (15000)	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	99297	Direct
Common Stock	19394	Indirect

Footnotes

F1: Restricted stock units ("RSUs") convert into common stock on a one-for-one basis.

F2: Represents 95,255 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.

F3: 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.

F4: This option was granted on January 29, 2026 (the "2026 Grant Date") and vests over four years, with 25% of the original number of shares vesting on the first anniversary of the 2026 Grant Date and 2.0833% of the original number of shares monthly thereafter until the fourth such anniversary.

F5: The RSUs were granted on the 2026 Grant Date and vest over four years, with 25% of the original number of shares vesting on each anniversary of the 2026 Grant Date until the fourth such anniversary.

F6: On January 31, 2025 (the "2025 Grant Date"), the reporting person was granted 60,000 RSUs, with 25% of the original number of shares vesting on each anniversary of the 2025 Grant Date until the fourth such anniversary