Florence Anthony A. Jr. 4
4 · Korro Bio, Inc. · Filed Mar 12, 2026
Research Summary
AI-generated summary of this filing
Korro Bio (KRRO) 10% Owner Florence Anthony Buys Shares
What Happened Florence Anthony A. Jr., reported as a 10% owner, made two purchases on March 10, 2026: 207,100 shares at $11.11 each for $2,300,881, and 242,945 pre‑funded warrants at $11.11 each for $2,698,876 (a derivative acquisition). Combined, the transactions represent 450,045 securities purchased for approximately $4,999,757 (~$5.0M). These were purchases (acquisitions), not sales.
Key Details
- Transaction date(s) and price(s): March 10, 2026; both at $11.11 per security.
- Share counts and values: 207,100 shares = $2,300,881; 242,945 pre‑funded warrants = $2,698,876; total ≈ $4,999,757.
- Instrument types: one purchase of common shares (P) and one purchase of pre‑funded warrants (derivative, marked as P).
- Source/footnotes:
- F1: Acquired from the issuer pursuant to a Subscription Agreement dated March 9, 2026.
- F3: The pre‑funded warrants are exercisable at any time but include an ownership cap — they may not be exercised to the extent exercise would cause the holder (and affiliates) to exceed 9.99% of outstanding common stock immediately after exercise (holder may increase/decrease that cap, with 61 days' notice, up to 19.99%).
- F2 (disclosure): The reporting person is a manager of NEA 17 GP, LLC and disclaims beneficial ownership to the extent they have no pecuniary interest in securities held by NEA 17 (indicates complex ownership/managerial relationships).
- Shares owned after transaction: Not specified in the provided filing excerpt.
- Filing timeliness: Form filed Mar 12, 2026 for transactions on Mar 10, 2026 — appears timely (Form 4 is typically due within two business days).
Context
- Pre‑funded warrants are a derivative that can be converted into common stock (usually used to allow an immediate economic interest while limiting the initial share count); here they carry an exercise/ownership cap to prevent exceedance of a ~10% ownership threshold unless adjusted.
- This filing is by a 10% owner (institutional/large holder disclosure). That status differs from routine executive buys/sells and often reflects an institutional investment decision rather than day‑to‑day executive compensation or tax‑related sales.
Insider Transaction Report
Form 4Exit
Korro Bio, Inc.KRRO
Florence Anthony A. Jr.
10% Owner
Transactions
- Purchase
Common Stock
[F1][F2]2026-03-10$11.11/sh+207,100$2,300,881→ 1,297,893 total(indirect: See Note 2) - Purchase
Pre-Funded Warrants
[F1][F3][F2]2026-03-10$11.11/sh+242,945$2,698,876→ 242,945 total(indirect: See Note 2)Exercise: $0.00→ Common Stock (242,945 underlying)
Footnotes (3)
- [F1]Acquired from the Issuer on March 10, 2026 pursuant to a Subscription Agreement dated March 9, 2026.
- [F2]The Reporting Person is a manager of NEA 17 GP, LLC, which is the sole general partner of NEA Partners 17, L.P. ("NEA Partners 17"). NEA Partners 17 is the sole general partner of New Enterprise Associates 17, L.P. ("NEA 17"), the direct beneficial owner of the securities. The Reporting Person disclaims beneficial ownership within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise of such portion of the securities held by NEA 17 in which the Reporting Person has no pecuniary interest.
- [F3]The Pre-Funded Warrants are exercisable at any time after their issuance; provided, however, that the Pre-Funded Warrants may not be exercised to the extent such exercise would cause the number of shares of the Issuer's Common Stock owned by the holder (together with its affiliates and certain other related parties) to exceed 9.99% of the total number of shares of the Issuer's Common Stock immediately after giving effect to such exercise, which percentage may be increased or decreased at the option of the holder upon 61 days' prior notice to the Issuer, not to exceed 19.99%.
Signature
/s/ Zachary Bambach, attorney-in-fact|2026-03-12