Parlavecchio Caryn 4

What Happened
Caryn Parlavecchio, Chief Human Resources Officer at Scholar Rock (SRRK), disposed of 9,035 shares on 2026-02-17 at $46.53 per share, generating proceeds of $420,382. The sale was a broker-facilitated "sell to cover" to satisfy tax withholding tied to RSUs that vested on Feb 15, 2026, and not a discretionary open-market trade.

Key Details

• Transaction date and price: 2026-02-17 — 9,035 shares sold at $46.53 each (total $420,382).
• Reason: Sale was required to cover tax withholding on vested RSUs (issuer-mandated "sell to cover"); not a voluntary trade.
• Vesting info: Shares came from RSU awards granted Feb 13, 2023 and Mar 10, 2025; RSUs vest annually over four years and each RSU converts to one common share on vesting.
• Shares owned after transaction: Consists of 86,859 shares of common stock and 82,228 RSUs (per footnote disclosure).
• Filing timeliness: Form 4 was filed on 2026-02-19 for a 2026-02-17 transaction — appears timely (Section 16 requires filing within two business days).

Context
"Sell to cover" transactions are routine administrative sales to meet tax obligations when restricted stock units vest and generally do not indicate the insider's market view. This filing documents the tax-withholding sale; it does not reflect an additional discretionary sale or purchase by the reporting person.