X0609 4 2026-07-01 0001727196 Scholar Rock Holding Corp SRRK 0001291144 Gilman Michael false 301 BINNEY STREET CAMBRIDGE MA 02142 true false false false true Common Stock 2026-07-01 4 S false 1346 53.544 D 60709 D Common Stock 2026-07-01 4 S false 1155 54.2257 D 59554 D Common Stock 2026-07-01 4 S false 43 54.8145 D 59511 D This sale was effected pursuant to a Rule 10b-5-1 trading plan adopted on March 31, 2026 to cover tax obligations upon the vesting and settlement of restricted stock units (RSUs). The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $52.970 to $53.955, inclusive. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request. Consists of 53,870 shares of common stock and 6,839 RSUs. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $53.960 to $54.750, inclusive. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request. Consists of 52,715 shares of common stock and 6,839 RSUs. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $54.790 to $55.010, inclusive. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request. Consists of 52,672 shares of common stock and 6,839 RSUs. /s/ Junlin Ho, attorney-in-fact for Michael Gilman 2026-07-06