Korro Bio, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Chappell Todd | Chief Operating Officer | Award / Grant | 20,132 | — | — | 20,132 | Dec 15, 2025 |
| Vincent Loic A | Chief Scientific Officer | Award / Grant | 21,715 | — | — | 21,715 | Dec 15, 2025 |
| Cerio Jeffrey | General Counsel | Award / Grant | 41,902 | — | — | 41,902 | Dec 15, 2025 |
| Dolan Oliver | Senior Vice President, Finance | Award / Grant | 21,482 | — | — | 21,482 | Dec 15, 2025 |
| Agarwal Vineet | Chief Financial Officer | Option Exercise | 800 | $11.68 | $9,344 | 800 | Nov 11, 2024 |
| Agarwal Vineet | Chief Financial Officer | Sale | 115 | $74.56 | $8,574 | 7,914 | Oct 17, 2024 |
| Chang Carmen | — | Purchase | 17,857 | $56.00 | $999,992 | 1,090,793 | Apr 22, 2024 |
| NEA Partners 17, L.P. | — | Purchase | 17,857 | $56.00 | $999,992 | 1,090,793 | Apr 22, 2024 |
| BASKETT FOREST | — | Purchase | 17,857 | $56.00 | $999,992 | 1,090,793 | Apr 22, 2024 |
| Behbahani Ali | — | Award / Grant | 17,857 | $56.00 | $999,992 | 1,090,793 | Apr 22, 2024 |
| Walker Paul Edward | — | Purchase | 17,857 | $56.00 | $999,992 | 1,090,793 | Apr 22, 2024 |
| Florence Anthony A. Jr. | — | Purchase | 17,857 | $56.00 | $999,992 | 1,090,793 | Apr 22, 2024 |
| Makhzoumi Mohamad | — | Purchase | 17,857 | $56.00 | $999,992 | 1,090,793 | Apr 22, 2024 |
| Mathers Edward T | — | Purchase | 17,857 | $56.00 | $999,992 | 1,090,793 | Apr 22, 2024 |
| SANDELL SCOTT D | — | Purchase | 17,857 | $56.00 | $999,992 | 1,090,793 | Apr 22, 2024 |
| Yang Rick | — | Purchase | 17,857 | $56.00 | $999,992 | 1,090,793 | Apr 22, 2024 |
| FORMELA JEAN FRANCOIS | — | Award / Grant | 17,857 | $56.00 | $999,992 | 195,074 | Apr 22, 2024 |
| Atlas Venture Associates Opportunity II, LP | — | Purchase | 17,857 | $56.00 | $999,992 | 195,074 | Apr 22, 2024 |
| Lucchino David L. | — | Sale | 202 | $38.82 | $7,842 | 22,150 | Nov 22, 2023 |
| Lucchino David L. | — | Award / Grant | 6,000 | — | — | 24,274 | Nov 3, 2023 |
| Bermingham Nessan | — | Award / Grant | 35,114 | — | — | 35,114 | Nov 3, 2023 |
| Behbahani Ali | — | Award / Grant | 1,072,936 | — | — | 1,072,936 | Nov 3, 2023 |
| Aiyar Ram | President and CEO | Award / Grant | 4,613 | — | — | 4,613 | Nov 3, 2023 |
| FORMELA JEAN FRANCOIS | — | Award / Grant | 942,075 | — | — | 942,075 | Nov 3, 2023 |
| Mitrano Richard J. | VP Finance & Operations | Sale | 227 | $0.63 | $143 | 48,694 | Aug 21, 2023 |
| Lucchino David L. | President and CEO | Sale | 2,865 | $0.60 | $1,719 | 636,801 | Aug 21, 2023 |
| Lucchino David L. | President and CEO | Sale | 2,895 | $0.65 | $1,882 | 642,399 | Aug 17, 2023 |
| Mitrano Richard J. | VP Finance & Operations | Sale | 230 | $0.62 | $143 | 48,921 | Aug 16, 2023 |
| Mitrano Richard J. | VP Finance & Operations | Sale | 228 | $0.65 | $148 | 49,385 | Aug 14, 2023 |
| Lucchino David L. | President and CEO | Sale | 2,629 | $0.67 | $1,761 | 645,294 | Aug 14, 2023 |
| Lucchino David L. | President and CEO | Sale | 2,733 | $0.67 | $1,831 | 650,804 | Aug 10, 2023 |
| Mitrano Richard J. | VP Finance & Operations | Sale | 240 | $0.64 | $154 | 49,851 | Aug 10, 2023 |
| Mitrano Richard J. | VP Finance & Operations | Sale | 241 | $0.67 | $161 | 50,576 | Aug 9, 2023 |
| Lucchino David L. | President and CEO | Sale | 2,798 | $0.67 | $1,875 | 656,327 | Aug 8, 2023 |
| Mitrano Richard J. | VP Finance & Operations | Sale | 220 | $0.67 | $147 | 51,052 | Aug 7, 2023 |
| Lucchino David L. | President and CEO | Sale | 2,857 | $0.68 | $1,943 | 661,935 | Aug 4, 2023 |
| Lucchino David L. | President and CEO | Sale | 2,587 | $0.52 | $1,345 | 670,021 | Aug 3, 2023 |
| Mitrano Richard J. | VP Finance & Operations | Sale | 232 | $0.56 | $130 | 51,272 | Aug 2, 2023 |
| Lucchino David L. | President and CEO | Sale | 2,799 | $0.49 | $1,372 | 672,608 | Jul 31, 2023 |
| Mitrano Richard J. | VP Finance & Operations | Sale | 238 | $0.48 | $114 | 51,735 | Jul 31, 2023 |
| Mitrano Richard J. | VP Finance & Operations | Sale | 227 | $0.53 | $120 | 52,418 | Jul 28, 2023 |
| Lucchino David L. | President and CEO | Sale | 2,791 | $0.51 | $1,423 | 680,730 | Jul 28, 2023 |
| Loose Christopher R. | Chief Scientific Officer | Sale | 1,373 | $0.53 | $728 | 184,994 | Jul 28, 2023 |
| Mitrano Richard J. | VP Finance & Operations | Sale | 234 | $0.50 | $117 | 52,867 | Jul 26, 2023 |
| Loose Christopher R. | Chief Scientific Officer | Sale | 1,390 | $0.50 | $695 | 187,696 | Jul 26, 2023 |
| Lucchino David L. | President and CEO | Sale | 2,803 | $0.50 | $1,402 | 686,130 | Jul 26, 2023 |
| Loose Christopher R. | Chief Scientific Officer | Sale | 1,438 | $0.54 | $777 | 189,086 | Jul 21, 2023 |
| Lucchino David L. | President and CEO | Sale | 2,887 | $0.54 | $1,559 | 688,933 | Jul 21, 2023 |
| Mitrano Richard J. | VP Finance & Operations | Sale | 234 | $0.56 | $131 | 53,101 | Jul 21, 2023 |
| Loose Christopher R. | Chief Scientific Officer | Sale | 1,361 | $0.64 | $871 | 191,857 | Jul 19, 2023 |