Insider transaction summary for Scholar Rock Holding Corp (SRRK): The reporting person, Mo Qatanani, Chief Scientific Officer, completed a sell-to-cover transaction on 09/16/2025 disposing of 3,178 shares of common stock at $33.52 per share to satisfy tax withholding arising from RSU vesting. After the transaction, the reporting person beneficially owns 112,317 shares, comprised of 3,353 issued shares and 108,964 unvested restricted stock units that vest over four years from grant dates in 2021 and 2022. The sell-to-cover was executed by a brokerage firm as required under the issuer's equity plan and was not a discretionary trade by the reporting person.
Form 144 filed for Scholar Rock Holding Corp (SRRK) reporting a proposed sale of 1,006 shares of common stock through J.P. Morgan Securities LLC on 09/16/2025. The filing shows an aggregate market value of $32,726 for the shares, with 96,127,265 shares outstanding. The securities to be sold were acquired as restricted stock units: 261 shares on 08/15/2025 and 745 shares on 09/15/2025, with payment indicated as NA. No sales by the reporting person in the prior three months are reported. The filing includes the required representation that the seller does not possess undisclosed material adverse information.
Caryn Parlavecchio, Chief Human Resources Officer of Scholar Rock Holding Corp (SRRK), reported a non-discretionary sale of common stock on 08/18/2025 to cover tax withholding for vested restricted stock units (RSUs). The Form 4 shows 2,178 shares were sold at $31.1663 per share as a mandatory "sell-to-cover" tied to RSUs that vested on 08/15/2025. After the transaction the reporting person beneficially owned 155,464 shares in total, comprising 66,222 common shares and 89,242 RSUs. The filing was signed by an attorney-in-fact on 08/19/2025.
Jeffrey S. Flier, Director of Scholar Rock Holding Corp (SRRK), executed several transactions on June 23, 2025, as part of a pre-planned Rule 10b5-1 trading plan established on February 27, 2025:
- Exercised 20,316 stock options at $21.62 per share
- Sold 17,550 shares at weighted average price of $32.16
- Sold 2,766 shares at weighted average price of $32.74
- Sold 11,136 shares at weighted average price of $33.21 (held in family trust)
Following these transactions, Flier directly owns 24,070 shares (including 16,438 common shares and 7,632 RSUs) and indirectly owns 11,136 shares through The Jeffrey S. Flier Family Trust - 2014. The exercised stock option has no remaining unvested shares. These transactions represent a significant reduction in Flier's direct holdings, suggesting potential portfolio rebalancing or profit-taking with the stock trading above $32.