Cumbo Alexander 4
4 · Solid Biosciences Inc. · Filed Dec 4, 2025
Insider Transaction Report
Form 4
Cumbo Alexander
DirectorPresident and CEO
Transactions
- Exercise/Conversion
Common Stock
2025-12-02+28,612→ 92,196 total - Sale
Common Stock
2025-12-03$5.11/sh−10,808$55,229→ 81,388 total - Exercise/Conversion
Restricted Stock Units
2025-12-02−28,612→ 28,613 total→ Common Stock (28,612 underlying)
Footnotes (4)
- [F1]Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock (the "RSUs").
- [F2]Includes 2,866 shares of common stock acquired under the Solid Biosciences Inc. Employee Stock Purchase Plan on May 30, 2025.
- [F3]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. Cumbo on August 18, 2024 effecting the sell-to-cover election. The sale does not represent a discretionary trade by Mr. Cumbo.
- [F4]The RSUs were granted on December 2, 2022 (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.