Burow Kristina 4
4 · Scholar Rock Holding Corp · Filed Jun 8, 2026
Research Summary
AI-generated summary of this filing
Scholar Rock (SRRK) Director Kristina Burow Receives Award
What Happened
- Kristina Burow, a director of Scholar Rock Holding Corp. (SRRK), received two equity awards on June 4, 2026: 6,839 restricted stock units (RSUs) and 4,310 derivative units, both reported as grants (transaction code A) at $0.00 per unit (total cash paid $0).
- The RSUs represent a contingent right to receive one share per unit upon vesting; vesting occurs on the earlier of June 15, 2027 or the company’s next Annual Meeting, subject to continued service (see footnote F1). These are compensation awards (not open-market purchases or sales).
Key Details
- Transaction date: 2026-06-04; filing date: 2026-06-08 (filed within normal Form 4 timing).
- Price: $0.00 per unit (awarded, not purchased).
- Reported post-transaction holdings (per filing): 110,871 shares of common stock and 6,839 RSUs (see footnote F2). The filing also records the separate 4,310 derivative-unit grant.
- Institutional/ownership notes: footnotes (F3–F4) indicate many shares are held by ARCH Venture Fund VIII, L.P., with related partnership entities and managers referenced; those entities/managers disclaim beneficial ownership except to the extent of pecuniary interest.
- No indication of a sale or immediate cashless exercise — these are standard equity compensation grants.
Context
- Awards like RSUs are routine compensation and do not necessarily signal an insider buying or selling stock. The derivative units simply mean the right to receive shares at vesting (not current shares).
- For retail investors: watch the vesting schedule (earliest of June 15, 2027 or next Annual Meeting) to know when shares may convert and potentially enter the market.
Insider Transaction Report
Form 4
Burow Kristina
Director
Transactions
- Award
Common Stock
[F1][F2]2026-06-04+6,839→ 117,710 total - Award
Stock Option (Right to Buy)
[F5]2026-06-04+4,310→ 4,310 totalExercise: $45.33Exp: 2036-06-04→ Common Stock (4,310 underlying)
Holdings
- 2,345,711(indirect: See footnote)
Common Stock
[F3][F4]
Footnotes (5)
- [F1]Each restricted stock unit ("RSU") represents the contingent right to receive, upon vesting of the RSU, one share of the Issuer's common stock. The shares subject to this RSU vest on the earlier of June 15, 2027 or on the date of the Issuer's next Annual Meeting subject to continued service to the Issuer through such date.
- [F2]Consists of 110,871 shares of common stock and 6,839 RSUs.
- [F3]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.
- [F4]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.
- [F5]Options to vest and become fully exercisable on the earlier of the first anniversary following the date of grant or on the date of the Issuer's next Annual Meeting, subject to continued service to the Issuer through such date.
Signature
/s/ Junlin Ho, Attorney-in-Fact for Kristina Burow|2026-06-08