Burow Kristina 4
4 · Scholar Rock Holding Corp · Filed Jul 6, 2026
Research Summary
AI-generated summary of this filing
Scholar Rock (SRRK) Director Kristina Burow Sells Shares
What Happened Kristina Burow, a director of Scholar Rock Holding Corp (SRRK), sold a total of 3,053 shares in two open‑market transactions on July 1, 2026. She sold 2,105 shares at a weighted average price of $53.49 for proceeds of $112,605, and 948 shares at a weighted average price of $54.28 for proceeds of $51,459 — total proceeds roughly $164,064. These were sales (not purchases) and were effected under a Rule 10b5‑1 trading plan to cover tax obligations upon the vesting/settlement of RSUs.
Key Details
- Transaction dates: July 1, 2026 (reported on Form 4 filed July 6, 2026).
- Sale details:
- 2,105 shares @ weighted avg $53.49; price range for these trades: $53.050–$54.030 (multiple executions).
- 948 shares @ weighted avg $54.28; price range for these trades: $54.040–$54.795 (multiple executions).
- Proceeds: ~$112,605 and ~$51,459 (total ≈ $164,064).
- Shares owned after transactions: reported beneficial ownership of 107,818 shares of common stock and 6,839 RSUs.
- Notable footnotes: sale was pursuant to a Rule 10b5‑1 plan to cover tax withholding on RSU vesting (F1). Price entries are weighted averages from multiple executions (F2, F4). Ownership tallies for before/after the trades are shown in F3/F5.
- Timeliness: Form 4 was filed July 6 for trades on July 1. Form 4s are normally due within two business days, so this filing was delayed (reduces near‑term transparency).
Context
- These sales were routine disposition transactions under a pre‑arranged 10b5‑1 plan to satisfy tax obligations related to RSUs; such planned sales are common and do not by themselves indicate a change in company outlook.
- Purchases generally carry more weight for signaling insider conviction; this report documents routine insider selling tied to equity compensation.
Insider Transaction Report
Form 4
Burow Kristina
Director
Transactions
- Sale
Common Stock
[F1][F2][F3]2026-07-01$53.49/sh−2,105$112,605→ 115,605 total - Sale
Common Stock
[F1][F4][F5]2026-07-01$54.28/sh−948$51,459→ 114,657 total
Holdings
- 2,345,711(indirect: See footnote)
Common Stock
[F6][F7]
Footnotes (7)
- [F1]This sale was effected pursuant to a Rule 10b-5-1 trading plan adopted on March 31, 2026 to cover tax obligations upon the vesting and settlement of restricted stock units (RSUs).
- [F2]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $53.050 to $54.030, inclusive. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.
- [F3]Consists of 108,766 shares of common stock and 6,839 RSUs.
- [F4]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $54.040 to $54.795, inclusive. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.
- [F5]Consists of 107,818 shares of common stock and 6,839 RSUs.
- [F6]The shares are held by ARCH Venture Fund VIII, L.P. ("ARCH VIII"). ARCH Venture Partners VIII, L.P. ("GPLP"), as the sole general partner of ARCH VIII, may be deemed to beneficially own the shares held by ARCH VIII. ARCH Venture Partners VIII, LLC ("GPLLC"), as the sole general partner of GPLP, may be deemed to beneficially own the shares held by GPLP. The GPLP and GPLLC disclaim beneficial ownership of such securities, except to the extent of any pecuniary interest therein.
- [F7]The managing directors of the GPLLC are Keith L. Crandell, Clinton Bybee and Robert Nelsen, and they may be deemed to beneficially own the shares held by ARCH VIII. Messrs. Crandell, Bybee and Nelsen disclaim beneficial ownership of such shares, except to the extent of any pecuniary interest therein. The Reporting Person is a managing director of the GPLP. The Reporting Person owns an interest in the GPLP but does not have voting or investment control over the shares held by ARCH VIII. The Reporting Person disclaims ownership of such shares, except to the extent of her pecuniary interest therein.
Signature
/s/ Junlin Ho, attorney-in-fact for Kristina Burow|2026-07-06