Kymera Therapeutics, 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 |
|---|---|---|---|---|---|---|---|
| Mainolfi Nello | Chief Executive Officer | Sale | 23,986 | $77.95 | $1,869,709 | 669,091 | Dec 31, 2025 |
| Mainolfi Nello | Chief Executive Officer | Option Exercise | 2,595 | $38.53 | $99,985 | 663,077 | Dec 17, 2025 |
| Esposito Pamela | — | Sale | 14,505 | $81.56 | $1,183,028 | 13,058 | Dec 17, 2025 |
| Booth Bruce | — | Sale | 10,545 | $90.14 | $950,526 | 4,113,387 | Dec 11, 2025 |
| BAKER FELIX | — | Purchase | 1,838,621 | $86.00 | $158,121,406 | 7,955,916 | Dec 11, 2025 |
| Albers Jeffrey W. | — | Option Exercise | 5,000 | $14.18 | $70,900 | 5,000 | Dec 8, 2025 |
| Mainolfi Nello | Chief Executive Officer | Sale | 100,000 | $89.17 | $8,917,000 | 660,482 | Dec 8, 2025 |
| Gollob Jared | Chief Medical Officer | Option Exercise | 49,307 | $5.33 | $262,806 | 159,299 | Dec 8, 2025 |
| Mainolfi Nello | Chief Executive Officer | Sale | 24,511 | $61.02 | $1,495,661 | 664,109 | Oct 29, 2025 |
| Gollob Jared | Chief Medical Officer | Sale | 8,963 | $61.49 | $551,135 | 131,341 | Oct 15, 2025 |
| Gollob Jared | Chief Medical Officer | Option Exercise | 800 | $1.31 | $1,048 | 120,800 | Oct 13, 2025 |
| Albers Jeffrey W. | — | Sale | 5,000 | $59.19 | $295,950 | — | Oct 13, 2025 |
| Jacobs Bruce N. | Chief Financial Officer | Sale | 79,220 | $50.00 | $3,961,000 | 227,409 | Sep 17, 2025 |
| Mainolfi Nello | Chief Executive Officer | Option Exercise | 30,000 | $2.08 | $62,400 | 690,482 | Sep 16, 2025 |
| Adams Brian | Chief Legal Officer | Award / Grant | 52,500 | — | — | 52,500 | Sep 3, 2025 |
| Biotechnology Value Trading Fund OS LP | — | Purchase | 142,604 | $44.00 | $6,274,576 | 2,798,795 | Jun 30, 2025 |
| Baker Bros. Advisors (GP) LLC | — | Purchase | 600,309 | $44.00 | $26,413,596 | 6,117,295 | Jun 30, 2025 |
| Ridloff Elena | — | Option Exercise | 4,500 | $20.29 | $91,305 | 4,500 | Jun 11, 2025 |
| Esposito Pamela | — | Option Exercise | 5,000 | $29.55 | $147,750 | 5,000 | Jun 3, 2025 |
| Ridloff Elena | — | Sale | 7,200 | $45.50 | $327,600 | 4,800 | Jun 3, 2025 |
| Mainolfi Nello | Chief Executive Officer | Sale | 30,000 | $49.00 | $1,470,000 | 660,482 | Jun 3, 2025 |
| Albers Jeffrey W. | — | Option Exercise | 6,349 | $10.34 | $65,649 | 6,349 | Jun 3, 2025 |
| Chadwick Jeremy G | Chief Operating Officer | Sale | 2,575 | $29.30 | $75,448 | 66,420 | May 23, 2025 |
| Goodman Noah | Chief Business Officer | Award / Grant | 50,000 | — | — | 50,081 | Apr 8, 2025 |
| Jacobs Bruce N. | Chief Financial Officer | Option Exercise | 25,000 | $2.08 | $52,000 | 226,886 | Mar 31, 2025 |
| Chiniara Ellen | Chief Legal Officer | Award / Grant | 27,500 | — | — | 82,326 | Mar 3, 2025 |
| Chadwick Jeremy G | Chief Operating Officer | Award / Grant | 25,000 | — | — | 69,183 | Mar 3, 2025 |
| Jacobs Bruce N. | Chief Financial Officer | Sale | 1,281 | $31.00 | $39,711 | 201,886 | Mar 3, 2025 |
| Gollob Jared | Chief Medical Officer | Award / Grant | 30,000 | — | — | 125,740 | Mar 3, 2025 |
| Mainolfi Nello | Chief Executive Officer | Option Exercise | 10,000 | $2.08 | $20,800 | 659,959 | Jan 10, 2025 |
| Jacobs Bruce N. | Chief Financial Officer | Option Exercise | 10,000 | $2.08 | $20,800 | 178,921 | Jan 10, 2025 |
| Chiniara Ellen | Chief Legal Officer | Sale | 3,129 | $41.75 | $130,636 | 54,826 | Jan 6, 2025 |
| Esposito Pamela | — | Sale | 2,500 | $49.00 | $122,500 | — | Dec 2, 2024 |
| Esposito Pamela | — | Option Exercise | 5,000 | $14.18 | $70,900 | 13,500 | Sep 17, 2024 |
| Albers Jeffrey W. | — | Option Exercise | 5,000 | $10.34 | $51,700 | 5,000 | Aug 26, 2024 |
| 667, L.P. | — | Purchase | 1 | $46.41 | $46 | 5,516,986 | Aug 20, 2024 |
| Gollob Jared | Chief Medical Officer | Option Exercise | 16,455 | $2.08 | $34,226 | 112,195 | Jul 16, 2024 |
| Booth Bruce | — | Sale | 24,449 | $35.57 | $869,651 | 4,523,951 | Jul 9, 2024 |
| Mainolfi Nello | Chief Executive Officer | Option Exercise | 18,773 | $5.33 | $100,060 | 649,959 | Jul 1, 2024 |
| Jacobs Bruce N. | Chief Financial Officer | Option Exercise | 25,000 | $2.08 | $52,000 | 168,554 | Jun 27, 2024 |
| Mainolfi Nello | Chief Executive Officer | Option Exercise | 14,413 | $2.08 | $29,979 | 631,186 | Jun 18, 2024 |
| Booth Bruce | — | Sale | 11,838 | $35.35 | $418,473 | 4,558,827 | Jun 13, 2024 |
| Horobin Joanna | — | Sale | 6,313 | $33.11 | $209,023 | — | Jun 7, 2024 |
| Chadwick Jeremy G | Chief Operating Officer | Sale | 2,575 | $34.99 | $90,099 | 44,183 | May 23, 2024 |
| Booth Bruce | — | Sale | 154 | $41.51 | $6,393 | 819,151 | Mar 14, 2024 |
| Atlas Venture Associates Opportunity I, LLC | — | Sale | 5,122 | $43.42 | $222,397 | 4,925,812 | Mar 13, 2024 |
| Booth Bruce | — | Sale | 5,122 | $43.42 | $222,397 | 4,925,812 | Mar 12, 2024 |
| Jacobs Bruce N. | Chief Financial Officer | Award / Grant | 31,250 | — | — | 146,285 | Mar 4, 2024 |
| Gollob Jared | Chief Medical Officer | Sale | 216 | $43.26 | $9,344 | 95,740 | Mar 1, 2024 |
| Chadwick Jeremy G | Chief Operating Officer | Award / Grant | 13,425 | — | — | 46,758 | Mar 1, 2024 |