Solid Biosciences Inc. — Director's Dealing 2023

Jun 8, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Solid Biosciences Inc. (SLDB)
CIK: 0001707502
Period of Report: 2023-06-06

Reporting Person: RA CAPITAL MANAGEMENT, L.P. (Director, 10% Owner)
Reporting Person: RA Capital Healthcare Fund LP (Director, 10% Owner)
Reporting Person: RA Capital Nexus Fund, L.P. (Director, 10% Owner)
Reporting Person: Kolchinsky Peter (Director, 10% Owner)
Reporting Person: Shah Rajeev M. (Director, 10% Owner)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-06-06	Director Stock Option (Right to Buy)	$6.37	A	9650	Acquired	2033-06-06	Common Stock (9650)	Indirect

Footnotes

F1: This option was granted on June 6, 2023, and vests in full on the earlier to occur of the one-year anniversary of the grant date and immediately prior to the Issuer's next annual meeting of stockholders occurring after the grant date, and will vest automatically as to 100% of the unvested portion of such option upon specified change in control events.

F2: RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, Dr. Kolchinsky, and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

F3: Under Mr. Shah's arrangement with the Adviser, Mr. Shah holds the option for the benefit of the Fund. Mr. Shah is obligated to turn over to the Adviser any net cash or stock received upon exercise of the option, which will offset advisory fees owed by the Fund. The Reporting Persons therefore disclaim beneficial ownership of the option and underlying common stock except to the extent of their pecuniary interest.