Form 4 Tracker
Korro Bio, Inc.
KRRO

43 insider filings · Latest: Sep 11, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Sep 14, 2026Sep 15 8:15 PMFORMELA JEAN FRANCOISDirector
Sale
38,490$14.12$543.5K132,650(I)

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Sep 11, 2026Sep 15 8:15 PMFORMELA JEAN FRANCOISDirector
Sale
10,200$13.99$142.7K139,252(I)

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Sep 14, 2026Sep 14 8:58 PMAtlas Venture Fund XI, L.P.
Proposed Sale
31,888$13.81$440.4K—

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Sep 14, 2026Sep 14 8:58 PMAtlas Venture Opportunity Fund II, L.P.
Proposed Sale
6,602$13.81$91.2K—

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Sep 11, 2026Sep 14 8:05 PMOliver DolanSenior Vice President, Finance
Sale
5$13.72$6916,241(D)

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Sep 11, 2026Sep 11 9:10 PMAtlas Venture Fund XI, L.P.
Proposed Sale
8,450$13.06$110.4K—

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Sep 11, 2026Sep 11 9:09 PMAtlas Venture Opportunity Fund II, L.P.
Proposed Sale
1,750$13.06$22.9K—

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Sep 11, 2026Sep 11 8:25 PMDolan Oliver
Proposed Sale
5$13.72$69—

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Sep 9, 2026Sep 10 8:05 PMOliver DolanSenior Vice President, Finance
Sale
6$13.60$8216,246(D)

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Sep 8, 2026Sep 10 8:05 PMOliver DolanSenior Vice President, Finance
Sale
7,347$13.51$99.3K16,252(D)

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Sep 9, 2026Sep 9 8:21 PMDolan Oliver
Proposed Sale
6$13.60$82—

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Sep 8, 2026Sep 8 8:15 PMDolan Oliver
Proposed Sale
7,347$13.51$99.3K—

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Aug 26, 2026Aug 28 8:30 PMFORMELA JEAN FRANCOISDirector
Sale
300$13.96$4.2K141,002(I)

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Aug 26, 2026Aug 26 9:23 PMAtlas Venture Fund XI, L.P.
Proposed Sale
249$13.73$3.4K—

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Aug 26, 2026Aug 26 9:23 PMAtlas Venture Opportunity Fund II, L.P.
Proposed Sale
51$13.73$700—

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Aug 19, 2026Aug 21 8:20 PMFORMELA JEAN FRANCOISDirector
Sale
28,468$14.00$398.6K141,053(I)

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Aug 19, 2026Aug 19 9:36 PMAtlas Venture Fund XI, L.P.
Proposed Sale
23,584$13.22$311.8K—

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Aug 19, 2026Aug 19 9:36 PMAtlas Venture Opportunity Fund II, L.P.
Proposed Sale
4,884$13.22$64.6K—

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Aug 11, 2026Aug 13 9:04 PMFORMELA JEAN FRANCOISDirector
Sale
2,143$13.96$29.9K145,937(I)

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Aug 10, 2026Aug 13 1:54 PMLynx1 Capital Management LP10% Owner
Purchase
1,462$13.19$19.3K1,544,980(I)

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Feb 2, 2026Feb 3 9:05 PMTodd ChappellChief Operating Officer
Grant/Award
38,000$13.0538,000(D)

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