Transaction #15753 · Form 4 · 0001193125-25-308115
Solid Biosciences Inc. · Exercise / conversion · Common Stock
Solid Biosciences Inc. · Transacted December 2, 2025 · Filed December 4, 2025
What does this filing report?
An SEC Form 4 filing for Solid Biosciences Inc. records an exercise / conversion involving Common Stock on December 2, 2025. The reported quantity was 28,612. The filing date is December 4, 2025. This is one transaction record; amounts are not allocated among any joint reporting owners.
The acquisition category describes how securities were received. It does not by itself establish a cash purchase of common stock. Read the transaction code definitionsand the original filing before interpreting the amounts.
Transaction details
- Company
- Solid Biosciences Inc.
- Company CIK
- 0001707502
- Security type
- Non-derivative
- Acquisition type
- Exercise / conversion · Code M
- Quantity acquired
- 28,612
- Reported price
- Not reported · See footnotes
- Reference value
- Not reported
- Currency
- Currency not specified
- Ownership
- Direct
- Holdings after transaction
- 92,196
- Ownership description
- Not reported
- SEC acceptance time
- Dec 4, 2025, 4:20 PM EST
- 10b5-1 indication
- Indicated in filing
Reference value is reported quantity × reported price. It is not a confirmed cash payment or an estimate of a derivative's economic value. A missing currency is not assumed to be USD.
Reporting owners
- Cumbo Alexander ↗
President and CEO · Director
CIK 0001685994
These are the reporting owners named in the filing. Quantities and amounts are not allocated among co-reporters. Roles reflect this filing, not a current profile.
Company listings
The linked listing is identified separately from other current company listings.
Filing footnotes & remarks
- 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.
Footnotes are reproduced as plain text from the current source filing. For the full context, read the original SEC filing.
This record was updated Eastern Time. This is the stored record update time, not the transaction date. Report a correction.