Through the 90-day period concluding January 10, 2026, Apogee Therapeutics's top three insider stakeholders include Director Funds Management Llc Fairmount (2.05Mn shares), Director Nimish P Shah (1.75Mn shares), Chief Executive Officer Michael Thomas Henderson (1.21Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Funds Management Llc Fairmount | 2,048,647 | 01 Apr, 2024 | |
| Nimish P Shah | 1,750,000 | 17 Jul, 2023 | |
| Michael Thomas Henderson | Chief Executive Officer | 1,212,987 | 12 Dec, 2025 |
| Carl Dambkowski | Chief Medical Officer | 212,523 | 09 Jan, 2026 |
| Jane Henderson | Chief Financial Officer | 185,371 | 06 Jan, 2026 |
| Mark C. Mckenna | 20,000 | 16 Dec, 2024 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 07 Jan, 2026 | Carl Dambkowski | Common Stock | D | 2,954 | $77.13 | 228,269 | D | S |
| 07 Jan, 2026 | Carl Dambkowski | Common Stock | D | 100 | $80.06 | 212,523 | D | S |
| 07 Jan, 2026 | Carl Dambkowski | Common Stock | A | 14,025 | $22.86 | 231,223 | D | M |
| 07 Jan, 2026 | Carl Dambkowski | Common Stock | D | 14,820 | $77.90 | 213,449 | D | S |
| 07 Jan, 2026 | Carl Dambkowski | Common Stock | D | 826 | $79.04 | 212,623 | D | S |
| 06 Jan, 2026 | Jane Henderson | Common Stock | D | 2,000 | $80.00 | 185,371 | D | S |
| 02 Jan, 2026 | Jane Henderson | Common Stock | D | 1,920 | $74.13 | 191,451 | D | S |
| 02 Jan, 2026 | Jane Henderson | Common Stock | D | 4,080 | $75.20 | 187,371 | D | S |
| 19 Dec, 2025 | Jane Henderson | Common Stock | D | 1,500 | $80.00 | 193,371 | D | S |
| 10 Dec, 2025 | Michael Thomas Henderson | - | - | 1,212,987 | D | |||
| 10 Dec, 2025 | Michael Thomas Henderson | - | - | 1,213,547 | D | |||
| 10 Dec, 2025 | Michael Thomas Henderson | Common Stock | D | 10,005 | $75.79 | 1,213,547 | D | S |
| 10 Dec, 2025 | Michael Thomas Henderson | Common Stock | D | 560 | $76.58 | 1,212,987 | D | S |
| 10 Dec, 2025 | Michael Thomas Henderson | Common Stock | D | 9,435 | $74.88 | 1,223,552 | D | S |
| 04 Dec, 2025 | Jane Henderson | Common Stock | D | 1,500 | $75.00 | 194,871 | D | S |
| 04 Dec, 2025 | Michael Thomas Henderson | - | - | 1,232,987 | D | |||
| 04 Dec, 2025 | Michael Thomas Henderson | Common Stock | D | 40,000 | $75.01 | 1,232,987 | D | S |
| 04 Dec, 2025 | Carl Dambkowski | Common Stock | D | 10,900 | $75.00 | 271,108 | D | S |
| 25 Nov, 2025 | Jane Henderson | Common Stock | D | 1,500 | $70.00 | 196,371 | D | S |
| 14 Nov, 2025 | Jane Henderson | Common Stock | D | 2,000 | $65.00 | 197,871 | D | S |