Marantz Jing L. 4

What Happened Jing L. Marantz, Chief Medical Officer of Scholar Rock Holding Corp (SRRK), sold 4,157 shares on February 17, 2026 at $46.53 per share, generating proceeds of $193,418. The filing indicates this sale was a broker-facilitated "sell to cover" required to satisfy tax withholding on RSUs that vested on February 15, 2026, and not a discretionary open-market trade.

Key Details

• Transaction date and price: Feb 17, 2026 — 4,157 shares sold at $46.53 each (total ~$193,418).
• Reason: Sale mandated to cover tax withholding on RSU vesting (per footnote F1); executed via a brokerage firm designated by the issuer.
• Vesting info (per F1): Shares vested pursuant to RSU awards granted Feb 13, 2023 and Mar 10, 2025; RSUs vest annually over four years, subject to continued service.
• Holdings after transaction (per footnote F2): 29,388 shares of common stock and 96,624 RSUs.
• Filing: Form 4 filed Feb 19, 2026, two days after the transaction — no late filing indicated.

Context A "sell to cover" is a routine, non-discretionary transaction where an employer-directed sale covers tax withholding on vested equity and does not necessarily signal the insider's view on the company's prospects. For retail investors, outright purchases or discretionary sales typically carry more informational weight than mandatory tax-withholding sales.