InsiderTrades

Form 4 for KRRO Korro Bio, Inc.

Accepted 2026-09-14 16:05:25 ET · period of report 2026-09-11 · accession 0001193125-26-390556 · 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
T 2026-09-14 16:05 2026-09-11 KRRO Dolan Oliver SVP, Fin S - Sale $13.72 -5 16.2K -0.0% -$68.58

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-09-11 S D 5 $13.72 16,241 D — — (F1) This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 8, 2026. (F2) The price reported in Column 4 is a weighted-average price. The shares were sold in multiple transactions at prices ranging from $13.51 to $13.85, 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 16,241 shares of common stock issuable upon settlement of restricted stock units (RSUs) that remain unvested, consisting of 10,741 shares that will vest on December 15, 2026, 2,750 shares that will vest on July 15, 2027, and 2,750 shares that will vest on July 15, 2028, in each case subject to the reporting person maintaining a continuous Service Relationship (as defined in the 2023 Plan) through each such date.