Data spanning the past 90 days through February 19, 2026 reveals that Biogen's three principal insider shareholders consist of Chief Executive Officer Michel Vounatsos (67.26K shares), Evp Chief Legal Officer Susan H Alexander (61.89K shares), Director Caroline Dorsa (31.00K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Michel Vounatsos | Chief Executive Officer | 67,261 | 23 Feb, 2022 |
| Susan H Alexander | Evp Chief Legal Officer | 61,889 | 10 Feb, 2026 |
| Caroline Dorsa | 31,002 | 18 Jun, 2025 | |
| Christopher Viehbacher | President And Ceo | 29,924 | 10 Feb, 2026 |
| Michael R Mcdonnell | Evp And Chief Financial Officer | 24,341 | 12 Feb, 2025 |
| Eric K Rowinsky | 24,339 | 18 Jun, 2025 | |
| Ginger Gregory | Evp And Human Resources | 22,359 | 10 Feb, 2026 |
| Nicole Murphy | Head Of Pharm Ops And Tech | 19,611 | 17 Feb, 2026 |
| Alexander J Denner | 15,099 | 17 Jun, 2022 | |
| Richard Mulligan | 15,099 | 17 Jun, 2022 | |
| Nancy Leaming | 13,763 | 02 Jul, 2021 | |
| Stephen A Sherwin | 13,688 | 18 Jun, 2025 | |
| Robin Kramer | Chief Financial Officer | 11,472 | 10 Feb, 2026 |
| Rachid Izzar | Head Of Global Product Strat. | 11,011 | 10 Feb, 2026 |
| Alfred Sandrock | Head Of Research & Development | 10,169 | 09 Jun, 2021 |
| Stelios Papadopoulos | 10,095 | 17 Jun, 2022 | |
| Jesus B Mantas | 9,758 | 18 Jun, 2025 | |
| William A Hawkins | 8,860 | 18 Jun, 2025 | |
| Brian S Posner | 8,175 | 02 Jul, 2021 | |
| Priya Singhal | Head Of Development | 8,043 | 10 Feb, 2026 |
| Chirfi Guindo | Head Of Glob Prod Strat & Com | 7,364 | 23 Feb, 2022 |
| Maria C Freire | 6,815 | 18 Jun, 2025 | |
| Adam Keeney | Head Of Corporate Development | 5,881 | 10 Feb, 2026 |
| Susan Langer | 5,129 | 18 Jun, 2025 | |
| Alphonse Galdes | Evp Pharmaceutical Oper & Tech | 5,064 | 21 Jan, 2022 |
| Jane Grogan | Head Of Research | 4,058 | 10 Feb, 2026 |
| Monish D Patolawala | 3,710 | 18 Jun, 2025 | |
| Lloyd Minor | 2,370 | 18 Jun, 2025 | |
| William D /Ca/ Jones | 2,145 | 17 Jun, 2022 | |
| Sean Godbout | Chief Accounting Officer | 1,215 | 10 Feb, 2026 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 12 Feb, 2026 | Nicole Murphy | Common Stock | A | 3 | $195.04 | 19,611 | D | P |
| 09 Feb, 2026 | Priya Singhal | Common Stock | D | 2,660 | $199.83 | 8,043 | D | S |
| 06 Feb, 2026 | Susan H Alexander | Common Stock | D | 931 | $201.18 | 38,405 | D | F |
| 06 Feb, 2026 | Susan H Alexander | Common Stock | D | 1,059 | $201.18 | 37,396 | D | F |
| 06 Feb, 2026 | Susan H Alexander | Common Stock | D | 1,514 | $201.18 | 41,807 | D | F |
| 06 Feb, 2026 | Susan H Alexander | Common Stock | A | 1,940 | $0.00 | 39,336 | D | M |
| 06 Feb, 2026 | Susan H Alexander | Common Stock | A | 4,916 | $0.00 | 43,321 | D | M |
| 06 Feb, 2026 | Susan H Alexander | Common Stock | A | 2,190 | $0.00 | 38,455 | D | M |
| 06 Feb, 2026 | Ginger Gregory | Common Stock | A | 1,635 | $0.00 | 19,400 | D | M |
| 06 Feb, 2026 | Ginger Gregory | Common Stock | A | 1,802 | $0.00 | 20,411 | D | M |
| 06 Feb, 2026 | Ginger Gregory | Common Stock | A | 3,746 | $0.00 | 23,491 | D | M |
| 06 Feb, 2026 | Ginger Gregory | Common Stock | D | 1,132 | $201.18 | 22,359 | D | F |
| 06 Feb, 2026 | Ginger Gregory | Common Stock | D | 791 | $201.18 | 18,609 | D | F |
| 06 Feb, 2026 | Ginger Gregory | Common Stock | D | 666 | $201.18 | 19,745 | D | F |
| 06 Feb, 2026 | Robin Kramer | Common Stock | D | 1,063 | $201.18 | 11,472 | D | F |
| 06 Feb, 2026 | Robin Kramer | Common Stock | D | 273 | $201.18 | 8,528 | D | F |
| 06 Feb, 2026 | Robin Kramer | Common Stock | D | 207 | $201.18 | 9,024 | D | F |
| 06 Feb, 2026 | Robin Kramer | Common Stock | A | 3,511 | $0.00 | 12,535 | D | M |
| 06 Feb, 2026 | Robin Kramer | Common Stock | A | 703 | $0.00 | 9,231 | D | M |
| 06 Feb, 2026 | Robin Kramer | Common Stock | A | 789 | $0.00 | 8,801 | D | M |