Solid Biosciences Inc. — Director's Dealing 2025

Feb 19, 2025

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: Solid Biosciences Inc. (SLDB)
CIK: 0001707502
Period of Report: 2025-02-18

Reporting Person: Adage Capital Management, L.P. (10% Owner)
Reporting Person: Atchinson Robert (10% Owner)
Reporting Person: Gross Phillip (10% Owner)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, $0.001 par value per share	3995539	Indirect

Footnotes

F1: The securities to which this filing relates are held directly by Adage Capital Partners, L.P., a Delaware limited partnership ("ACP"). Adage Capital Management, L.P., a Delaware limited partnership ("ACM"), serves as the investment manager of ACP and as such has discretion over the portfolio securities held by ACP. Robert Atchinson and Phillip Gross are the managing members of (i) Adage Capital Advisors, L.L.C., a Delaware limited liability company, managing member of Adage Capital Partners GP, L.L.C., a Delaware limited liability company, general partner of ACP and (ii) Adage Capital Partners LLC, a Delaware limited liability company, general partner of ACM.

F2: Each of the reporting persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, except as to such extent of such reporting person's pecuniary interest in the securities, if any.