Alexander Cumbo - 14 Aug 2025 Form 4 Insider Report for Solid Biosciences Inc. (SLDB)

Role
President and CEO, Director
Signature
/s/ Kimberly Cornwell as attorney-in-fact for Alexander Cumbo
Issuer symbol
SLDB
Transactions as of
14 Aug 2025
Net transactions value
$0
Form type
4
Filing time
18 Aug 2025, 16:10:23 UTC
Previous filing
28 Jul 2025
Next filing
04 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Cumbo Alexander President and CEO, Director C/O SOLID BIOSCIENCES INC., 500 RUTHERFORD AVENUE, THIRD FLOOR, CHARLESTOWN /s/ Kimberly Cornwell as attorney-in-fact for Alexander Cumbo 18 Aug 2025 0001685994

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction SLDB Employee Stock Option (Right to Buy) Award $0 +337,500 $0.000000 337,500 14 Aug 2025 Common Stock 337,500 $6.17 Direct F1
transaction SLDB Restricted Stock Units Award $0 +168,750 $0.000000 168,750 14 Aug 2025 Common Stock 168,750 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The RSUs (as defined in footnote 2) together with this option were granted on August 14, 2025 (the "Grant Date") and vest over four years, with 50% of the original number of shares vesting on the second anniversary of the Grant Date and 25% of the original number of shares annually thereafter until the fourth such anniversary.
F2 Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock (the "RSUs").