Marantz Jing L. 4

What Happened
Jing L. Marantz, Chief Medical Officer of Scholar Rock Holding Corp. (SRRK), received a grant of 34,482 restricted stock units (RSUs) on February 9, 2026. The grant is reported as an award/acquisition (code A) with an acquisition price of $0.00 (i.e., an equity award rather than a cash purchase). This was not a sale; it is a compensation grant.

Key Details

• Transaction date: 2026-02-09; reported on Form 4 filed 2026-02-11 (timely filing).
• Award: 34,482 RSUs granted at $0.00 per unit (reported as acquisition = $0).
• Beneficial ownership after the grant: consists of 24,974 shares of common stock and 105,195 RSUs (per footnote), i.e., 130,169 total instruments when combining shares and RSUs.
• Footnote on vesting: RSUs are time‑based, vesting in four equal annual installments with the first vesting on January 15, 2027, contingent on continued service.
• Transaction type: Award/Grant (code A); no 10b5-1 plan, tax‑withholding, or cashless exercise indicated in this report.

Context
RSUs represent a contingent right to receive one share upon vesting; they are a common form of employee compensation and do not by themselves indicate an insider buying or selling stock for investment. Because these RSUs vest over time and require continued service, they are typically intended to retain and align executives with shareholder interests rather than signal immediate trading sentiment.