Form 4 for KRRO Korro Bio, Inc.
Accepted 2025-12-16 00:00:00 ET · period of report 2025-12-15 · accession 0001193125-25-320851 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-12-16 | 2025-12-15 | KRRO | Cerio Jeffrey | GC | A - Grant | $0.00 | +41.9K | 41.9K | New | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2025-12-15 | A | A | 41,902 | $0.00 | 41,902 | D | — | — | (F1) Represents shares of common stock issuable upon settlement of a restricted stock unit (RSU) granted under the Issuer's 2023 Stock Option and Incentive Plan (the 2023 Plan) that will vest as follows: 50% on June 15, 2026 and 50% on December 15, 2026, in each case subject to the reporting person maintaining a continuous Service Relationship (as defined in the 2023 Plan) through each such date. |