Hallal David 4

What Happened

• David Hallal, CEO of Scholar Rock Holding Corp. (SRRK), disposed of 30,615 shares on April 16, 2026 at $49.57 per share, generating proceeds of $1,517,723. This transaction was a sale (code S) carried out through a brokerage firm.

Key Details

• Transaction date and price: 4/16/2026 — 30,615 shares @ $49.57 each; total ≈ $1,517,723.
• Reason: The sale was a mandatory "sell-to-cover" to satisfy tax withholding on RSUs that vested (not a discretionary market bet by the CEO). The RSUs vested on April 15, 2026 and were originally granted April 27, 2025.
• Holdings reported (per filing): 198,530 shares of common stock; 315,504 time-based RSUs; 1,125,000 performance- and time-based RSUs.
• Trust disclosure: Some shares are held by the Hallal Family Irrevocable Trust (Hallal Trust); Hallal disclaims beneficial ownership except to the extent of pecuniary interest.
• Filing: Form 4 filed 04/20/2026 reporting the 04/16/2026 transaction — filed within the typical two-business-day window.

Context

• Sell-to-cover transactions are routine administrative sales to cover tax withholding on vested equity awards and generally do not signal insider sentiment about the company’s outlook. The underlying RSUs vest annually over four years, subject to continued service (and some subject to performance conditions).