X0609 4 2026-09-24 0 0001727196 Scholar Rock Holding Corp SRRK 0001996804 Woods Keith false 301 BINNEY STREET CAMBRIDGE MA 02142 0 1 0 0 Chief Operating Officer 0 Common Stock 2026-09-24 4 G 0 48034 0.00 D 572021 D Common Stock 48034 I By RKW Irrevocable Trust On September 24, 2026, the reporting person transferred 48,034 shares of the Issuer's Common Stock to the RKW Irrevocable Trust for no consideration. The reporting person's spouse serves as trustee of the RKW Irrevocable Trust. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. Consists of 0 shares of common stock, 122,021 RSUs subject to time-based vesting conditions and 450,000 RSUs subject to performance- and time-based vesting conditions. /s/ Junlin Ho, Attorney-in-Fact for Keith Woods 2026-09-25