Dudediligence.

Korro Bio, Inc

KRRONASDAQ · Pharmaceutical Preparations
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Last 12 months

Sales planned on beside the trades reported on , and whether each names a .

Planned ·

$6,360,786

29 notices · 426,957 sh

Mar 24 to Oct 4

Reported ·

$2,167,201

11 sales · 10 buys · $20.7M bought

Oct 2025 to Jun 2026

The two figures cover different periods.

6 of 11 reported sales carry the 10b5-1 box. Together they are 1.07% of the shares on issue.

PLANNED · FORM 144Mar 24 to Oct 4REPORTED · FORM 4Oct 2025 to Jun 2026N2025DJ2026FMAMJJASO2026-09-14: Atlas Venture Fund XI, L.P., Form 1442026-09-14: Atlas Venture Opportunity Fund II, L.P., Form 1442026-09-11: Dolan Oliver, Form 1442026-09-11: Atlas Venture Fund XI, L.P., Form 1442026-09-11: Atlas Venture Opportunity Fund II, L.P., Form 1442026-09-09: Dolan Oliver, Form 1442026-09-08: Dolan Oliver, Form 1442026-08-26: Atlas Venture Fund XI, L.P., Form 1442026-08-26: Atlas Venture Opportunity Fund II, L.P., Form 1442026-08-19: Atlas Venture Fund XI, L.P., Form 1442026-08-19: Atlas Venture Opportunity Fund II, L.P., Form 1442026-08-11: Atlas Venture Opportunity Fund II, L.P., Form 1442026-08-11: Atlas Venture Fund XI, L.P., Form 1442026-08-04: Aiyar Ram, Form 1442026-07-06: Atlas Venture Fund XI, L.P., Form 1442026-07-06: Atlas Venture Opportunity Fund II, L.P., Form 1442026-07-02: Atlas Venture Opportunity Fund II, L.P., Form 1442026-07-02: Atlas Venture Fund XI, L.P., Form 1442026-06-24: Atlas Venture Fund XI, L.P., Form 1442026-06-24: Atlas Venture Opportunity Fund II, L.P., Form 1442026-06-23: Atlas Venture Opportunity Fund II, L.P., Form 1442026-06-23: Atlas Venture Fund XI, L.P., Form 1442026-06-22: Atlas Venture Fund XI, L.P., Form 1442026-06-22: Atlas Venture Opportunity Fund II, L.P., Form 1442026-06-16: Vincent Loic A, Form 1442026-06-16: Cerio Jeffrey, Form 1442026-06-16: Dolan Oliver, Form 1442026-06-16: Chappell Todd, Form 1442026-05-29: Aiyar Ram, Form 1442026-03-10: Florence Anthony A. Jr., bought2026-03-10: Makhzoumi Mohamad, bought2026-03-10: Walker Paul Edward, bought2026-03-10: Mathers Edward T, bought2026-03-10: BASKETT FOREST, bought2026-03-10: Chang Carmen, bought2026-03-10: New Enterprise Associates 17, L.P., bought2026-03-10: SANDELL SCOTT D, bought2026-03-10: Yang Rick, bought2026-03-31: Nichols Weston, bought2026-05-28: FORMELA JEAN FRANCOIS, sold2026-05-29: Aiyar Ram, sold2026-06-16: Dolan Oliver, sold2026-06-16: Cerio Jeffrey, sold2026-06-16: Vincent Loic A, sold2026-06-16: Chappell Todd, sold2026-06-22: FORMELA JEAN FRANCOIS, sold
under a no plan named▼ sale▲ buysize is dollars

Form 144 notices, newest first

2026-09-14Atlas Venture Fund XI, L.P., Shareholder$440,373
31,888 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-09-14Atlas Venture Opportunity Fund II, L.P., Shareholder$91,174
6,602 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-09-11Dolan Oliver, Senior Vice President, Finance$69
5 shplan 2026-06-08Form 4s on file end Jun 23144 ↗
2026-09-11Atlas Venture Fund XI, L.P., Shareholder$110,357
8,450 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-09-11Atlas Venture Opportunity Fund II, L.P., Shareholder$22,855
1,750 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-09-09Dolan Oliver, Senior Vice President, Finance$82
6 shplan 2026-06-08Form 4s on file end Jun 23144 ↗
2026-09-08Dolan Oliver, Senior Vice President, Finance$99,286
7,347 shplan 2026-06-08Form 4s on file end Jun 23144 ↗
2026-08-26Atlas Venture Fund XI, L.P., Shareholder$3,419
249 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-08-26Atlas Venture Opportunity Fund II, L.P., Shareholder$700
51 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-08-19Atlas Venture Fund XI, L.P., Shareholder$311,780
23,584 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-08-19Atlas Venture Opportunity Fund II, L.P., Shareholder$64,566
4,884 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-08-11Atlas Venture Opportunity Fund II, L.P., Shareholder$4,964
368 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-08-11Atlas Venture Fund XI, L.P., Shareholder$23,945
1,775 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-08-04Aiyar Ram, President and CEO$662,917
5,802 shno plan dateForm 4s on file end Jun 23144 ↗
2026-07-06Atlas Venture Fund XI, L.P., Shareholder$11,438
817 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-07-06Atlas Venture Opportunity Fund II, L.P., Shareholder$119,084
8,506 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-07-02Atlas Venture Opportunity Fund II, L.P., Shareholder$201,269
14,745 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-07-02Atlas Venture Fund XI, L.P., Shareholder$1,173,286
85,955 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-06-24Atlas Venture Fund XI, L.P., Shareholder$566,840
41,345 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-06-24Atlas Venture Opportunity Fund II, L.P., Shareholder$97,245
7,093 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-06-23Atlas Venture Opportunity Fund II, L.P., Shareholder$242,221
17,426 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-06-23Atlas Venture Fund XI, L.P., Shareholder$1,411,948
101,579 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-06-22Atlas Venture Fund XI, L.P., Shareholder$277,194
21,339 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-06-22Atlas Venture Opportunity Fund II, L.P., Shareholder$47,556
3,661 shplan 2026-04-08Form 4s on file end Jun 23144 ↗
2026-06-16Vincent Loic A, Chief Scientific Officer$37,017
3,418 shno plan date144 ↗
Form 4, 2026-06-17: sold 3,418 at $10.83 Form 4 ↗
2026-06-16Cerio Jeffrey, General Counsel$71,576
6,609 shno plan date144 ↗
Form 4, 2026-06-17: sold 6,609 at $10.83 Form 4 ↗
2026-06-16Dolan Oliver, Senior Vice President, Finance$36,638
3,383 shno plan date144 ↗
Form 4, 2026-06-17: sold 3,383 at $10.83 Form 4 ↗
2026-06-16Chappell Todd, Chief Operating Officer$34,310
3,168 shno plan date144 ↗
Form 4, 2026-06-17: sold 3,168 at $10.83 Form 4 ↗
2026-05-29Aiyar Ram, President and CEO$196,676
15,152 shno plan date144 ↗
Form 4, 2026-06-02: sold 15,152 at $12.98 Form 4 ↗