Form 4 Tracker
Korro Bio, Inc.
KRRO

38 insider filings · Latest: Aug 11, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
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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Aug 6, 2026Aug 13 1:54 PMLynx1 Capital Management LP10% Owner
Purchase
5,222$11.40$59.5K1,543,518(I)

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Aug 11, 2026Aug 11 10:00 PMAtlas Venture Opportunity Fund II, L.P.
Proposed Sale
368$13.49$5.0K

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Aug 11, 2026Aug 11 10:00 PMAtlas Venture Fund XI, L.P.
Proposed Sale
1,775$13.49$23.9K

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Aug 4, 2026Aug 5 8:05 PMRam AiyarDirector, President and CEO
Sale
5,802$10.84$62.9K69,046(D)

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Aug 4, 2026Aug 4 8:40 PMAiyar Ram
Proposed Sale
5,802$114.26$662.9K

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Jul 6, 2026Jul 7 10:04 PMFORMELA JEAN FRANCOISDirector
Sale
9,323$13.96$130.1K146,305(I)

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Jul 2, 2026Jul 7 10:04 PMFORMELA JEAN FRANCOISDirector
Sale
100,700$14.03$1.4M154,811(I)

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Jul 6, 2026Jul 6 9:15 PMAtlas Venture Fund XI, L.P.
Proposed Sale
817$14.00$11.4K

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Jul 6, 2026Jul 6 9:15 PMAtlas Venture Opportunity Fund II, L.P.
Proposed Sale
8,506$14.00$119.1K

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Jul 2, 2026Jul 2 8:41 PMAtlas Venture Opportunity Fund II, L.P.
Proposed Sale
14,745$13.65$201.3K

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Jul 2, 2026Jul 2 8:41 PMAtlas Venture Fund XI, L.P.
Proposed Sale
85,955$13.65$1.2M

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Jun 24, 2026Jun 25 12:09 AMFORMELA JEAN FRANCOISDirector
Sale
48,438$14.61$707.5K169,556(I)

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Jun 23, 2026Jun 25 12:09 AMFORMELA JEAN FRANCOISDirector
Sale
119,005$14.25$1.7M176,649(I)

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Jun 22, 2026Jun 25 12:09 AMFORMELA JEAN FRANCOISDirector
Sale
3,962$13.95$55.3K194,075(I)

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Jun 24, 2026Jun 24 9:50 PMAtlas Venture Fund XI, L.P.
Proposed Sale
41,345$13.71$566.8K

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Jun 24, 2026Jun 24 9:50 PMAtlas Venture Opportunity Fund II, L.P.
Proposed Sale
7,093$13.71$97.2K

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Jun 23, 2026Jun 23 10:12 PMAtlas Venture Opportunity Fund II, L.P.
Proposed Sale
17,426$13.90$242.2K

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Jun 23, 2026Jun 23 10:12 PMAtlas Venture Fund XI, L.P.
Proposed Sale
101,579$13.90$1.4M

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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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