InsiderTrades

Form 4 for KRRO Korro Bio, Inc.

Accepted 2026-06-02 07:00:03 ET · period of report 2026-05-29 · accession 0001193125-26-252460 · 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
2026-06-02 07:00 2026-05-29 KRRO Aiyar Ram Pres, CEO, Dir S - Sale $12.98 -15.2K 74.8K -17% -$196.7K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-05-29 S D 15,152 $12.98 74,848 D — — (F1) Represents the sale of shares of common stock solely to satisfy tax withholding obligations incurred upon vesting and settlement of a performance stock unit. (F2) The price reported in Column 4 is a weighted-average price. The shares were sold in multiple transactions at prices ranging from $12.62 to $13.245, inclusive. Full information regarding the number of shares sold at each separate price can be provided to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission upon request. (F3) Includes 40,000 shares of common stock issuable upon settlement of a restricted stock unit granted under the 2023 Plan as reported on Form 4 dated February 3, 2026.