BIIB · Biogen Inc. Common Stock
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| Susan H. Alexander EVP Chief Legal Officer | ▼ Sell | Tax Withholding | 41,807 Shares held | 2/6/2026 | View profile |
| Christopher Viehbacher President and CEO | ▼ Sell | Tax Withholding | 29,924 Shares held | 2/6/2026 | View profile |
| Eric K. Rowinsky Director | ▲ Buy | Grant | 25,844 Shares held | 6/9/2026 | View profile |
| Ginger Gregory EVP, Human Resources | ▼ Sell | Tax Withholding | 22,359 Shares held | 2/6/2026 | View profile |
| Nicole Murphy Head of Pharm Ops and Tech | ▲ Buy | Open Market | 19,611 Shares held | 2/12/2026 | View profile |
| Stephen A. Sherwin Director | ▲ Buy | Grant | 15,193 Shares held | 6/9/2026 | View profile |
| Robin Kramer Chief Financial Officer | ▼ Sell | Tax Withholding | 11,472 Shares held | 2/6/2026 | View profile |
| Jesus B. Mantas Director | ▲ Buy | Grant | 11,263 Shares held | 6/9/2026 | View profile |
| Rachid Izzar Head of Global Product Strat. | ▼ Sell | Tax Withholding | 11,011 Shares held | 2/6/2026 | View profile |
| William A. Hawkins Director | ▲ Buy | Grant | 10,365 Shares held | 6/9/2026 | View profile |
| Maria C. Freire Director | ▲ Buy | Grant | 8,820 Shares held | 6/9/2026 | View profile |
| Priya Singhal Head of Development | ▼ Sell | Open Market | 8,043 Shares held | 2/9/2026 | View profile |
| Susan Langer Director | ▲ Buy | Grant | 6,634 Shares held | 6/9/2026 | View profile |
| Adam Keeney Head of Corporate Development | ▼ Sell | Tax Withholding | 6,365 Shares held | 5/1/2026 | View profile |
| Monish D. Patolawala Executive Vice President & CFO | ▲ Buy | Grant | 5,215 Shares held | 6/9/2026 | View profile |
| Jane Grogan Head of Research | ▼ Sell | Tax Withholding | 4,058 Shares held | 2/6/2026 | View profile |
| Menelas N. Pangalos Director | ▲ Buy | Grant | 3,875 Shares held | 6/9/2026 | View profile |
| Lloyd Minor Director | ▼ Sell | Open Market | 2,689 Shares held | 8/4/2026 | View profile |
| Sean Godbout Chief Accounting Officer | ▼ Sell | Tax Withholding | 1,342 Shares held | 4/1/2026 | View profile |
Transaction History
| Lloyd Minor | ▼ Sell | Open Market | 593 | $119K | 8/4/2026 |
| Lloyd Minor | ▼ Sell | Open Market | 593 | $121K | 8/3/2026 |
| William A. Hawkins | ▲ Buy | Grant | 1,505 | $0 | 6/9/2026 |
| Stephen A. Sherwin | ▲ Buy | Grant | 1,505 | $0 | 6/9/2026 |
| Eric K. Rowinsky | ▲ Buy | Grant | 1,505 | $0 | 6/9/2026 |
| Susan Langer | ▲ Buy | Grant | 1,505 | $0 | 6/9/2026 |
| Monish D. Patolawala | ▲ Buy | Grant | 1,505 | $0 | 6/9/2026 |
| Menelas N. Pangalos | ▲ Buy | Option Exercise | 2,370 | $0 | 6/9/2026 |
| Menelas N. Pangalos | ▲ Buy | Grant | 1,505 | $0 | 6/9/2026 |
| Lloyd Minor | ▲ Buy | Grant | 1,505 | $0 | 6/9/2026 |
| Maria C. Freire | ▲ Buy | Grant | 2,005 | $0 | 6/9/2026 |
| Jesus B. Mantas | ▲ Buy | Grant | 1,505 | $0 | 6/9/2026 |
| Adam Keeney | ▲ Buy | Option Exercise | 939 | $0 | 5/1/2026 |
| Adam Keeney | ▼ Sell | Tax Withholding | 455 | $85K | 5/1/2026 |
| Sean Godbout | ▲ Buy | Option Exercise | 181 | $0 | 4/1/2026 |
| Sean Godbout | ▼ Sell | Tax Withholding | 54 | $10K | 4/1/2026 |
| Nicole Murphy | ▲ Buy | Open Market | 3 | $585 | 2/12/2026 |
| Priya Singhal | ▼ Sell | Open Market | 2,660 | $532K | 2/9/2026 |
| Christopher Viehbacher | ▲ Buy | Option Exercise | 9,008 | $0 | 2/6/2026 |
| Christopher Viehbacher | ▲ Buy | Option Exercise | 15,453 | $0 | 2/6/2026 |
| Christopher Viehbacher | ▼ Sell | Tax Withholding | 6,624 | $1.3M | 2/6/2026 |
| Priya Singhal | ▲ Buy | Option Exercise | 2,217 | $0 | 2/6/2026 |
| Priya Singhal | ▼ Sell | Tax Withholding | 1,056 | $212K | 2/6/2026 |
| Priya Singhal | ▲ Buy | Option Exercise | 4,683 | $0 | 2/6/2026 |
| Priya Singhal | ▼ Sell | Tax Withholding | 1,412 | $284K | 2/6/2026 |
| Nicole Murphy | ▲ Buy | Option Exercise | 2,102 | $0 | 2/6/2026 |
| Nicole Murphy | ▼ Sell | Tax Withholding | 1,017 | $205K | 2/6/2026 |
| Nicole Murphy | ▲ Buy | Option Exercise | 1,940 | $0 | 2/6/2026 |
| Nicole Murphy | ▼ Sell | Tax Withholding | 914 | $184K | 2/6/2026 |
| Nicole Murphy | ▲ Buy | Option Exercise | 4,683 | $0 | 2/6/2026 |
| Nicole Murphy | ▼ Sell | Tax Withholding | 1,408 | $283K | 2/6/2026 |
| Robin Kramer | ▲ Buy | Option Exercise | 789 | $0 | 2/6/2026 |
| Robin Kramer | ▼ Sell | Tax Withholding | 273 | $55K | 2/6/2026 |
| Robin Kramer | ▲ Buy | Option Exercise | 703 | $0 | 2/6/2026 |
| Robin Kramer | ▼ Sell | Tax Withholding | 207 | $42K | 2/6/2026 |
| Robin Kramer | ▲ Buy | Option Exercise | 3,511 | $0 | 2/6/2026 |
| Robin Kramer | ▼ Sell | Tax Withholding | 1,063 | $214K | 2/6/2026 |
| Adam Keeney | ▲ Buy | Option Exercise | 1,802 | $0 | 2/6/2026 |
| Adam Keeney | ▼ Sell | Tax Withholding | 589 | $118K | 2/6/2026 |
| Adam Keeney | ▲ Buy | Option Exercise | 3,278 | $0 | 2/6/2026 |
| Adam Keeney | ▼ Sell | Tax Withholding | 994 | $200K | 2/6/2026 |
| Rachid Izzar | ▲ Buy | Option Exercise | 2,044 | $0 | 2/6/2026 |
| Rachid Izzar | ▼ Sell | Tax Withholding | 805 | $162K | 2/6/2026 |
| Rachid Izzar | ▲ Buy | Option Exercise | 1,802 | $0 | 2/6/2026 |
| Rachid Izzar | ▼ Sell | Tax Withholding | 458 | $92K | 2/6/2026 |
| Rachid Izzar | ▲ Buy | Option Exercise | 3,043 | $0 | 2/6/2026 |
| Rachid Izzar | ▼ Sell | Tax Withholding | 775 | $156K | 2/6/2026 |
| Jane Grogan | ▲ Buy | Option Exercise | 1,385 | $0 | 2/6/2026 |
| Jane Grogan | ▼ Sell | Tax Withholding | 407 | $82K | 2/6/2026 |
| Jane Grogan | ▲ Buy | Option Exercise | 1,873 | $0 | 2/6/2026 |
| Jane Grogan | ▼ Sell | Tax Withholding | 584 | $117K | 2/6/2026 |
| Ginger Gregory | ▲ Buy | Option Exercise | 1,635 | $0 | 2/6/2026 |
| Ginger Gregory | ▼ Sell | Tax Withholding | 791 | $159K | 2/6/2026 |
| Ginger Gregory | ▲ Buy | Option Exercise | 1,802 | $0 | 2/6/2026 |
| Ginger Gregory | ▼ Sell | Tax Withholding | 666 | $134K | 2/6/2026 |
| Ginger Gregory | ▲ Buy | Option Exercise | 3,746 | $0 | 2/6/2026 |
| Ginger Gregory | ▼ Sell | Tax Withholding | 1,132 | $228K | 2/6/2026 |
| Sean Godbout | ▲ Buy | Option Exercise | 257 | $0 | 2/6/2026 |
| Sean Godbout | ▼ Sell | Tax Withholding | 76 | $15K | 2/6/2026 |
| Sean Godbout | ▲ Buy | Option Exercise | 305 | $0 | 2/6/2026 |
| Sean Godbout | ▼ Sell | Tax Withholding | 103 | $21K | 2/6/2026 |
| Sean Godbout | ▲ Buy | Option Exercise | 517 | $0 | 2/6/2026 |
| Sean Godbout | ▼ Sell | Tax Withholding | 180 | $36K | 2/6/2026 |
| Susan H. Alexander | ▲ Buy | Option Exercise | 2,190 | $0 | 2/6/2026 |
| Susan H. Alexander | ▼ Sell | Tax Withholding | 1,059 | $213K | 2/6/2026 |
| Susan H. Alexander | ▲ Buy | Option Exercise | 1,940 | $0 | 2/6/2026 |
| Susan H. Alexander | ▼ Sell | Tax Withholding | 931 | $187K | 2/6/2026 |
| Susan H. Alexander | ▲ Buy | Option Exercise | 4,916 | $0 | 2/6/2026 |
| Susan H. Alexander | ▼ Sell | Tax Withholding | 1,514 | $305K | 2/6/2026 |
| Christopher Viehbacher | ▼ Sell | Tax Withholding | 4,356 | $876K | 2/6/2026 |
| Priya Singhal | ▼ Sell | Open Market | 748 | $134K | 2/2/2026 |
| Priya Singhal | ▲ Buy | Option Exercise | 1,829 | $0 | 1/30/2026 |
| Priya Singhal | ▼ Sell | Tax Withholding | 582 | $105K | 1/30/2026 |
| Christopher Viehbacher | ▲ Buy | Option Exercise | 7,040 | $0 | 12/1/2025 |
| Christopher Viehbacher | ▼ Sell | Tax Withholding | 3,404 | $605K | 12/1/2025 |
| Jane Grogan | ▲ Buy | Option Exercise | 695 | $0 | 10/31/2025 |
| Jane Grogan | ▼ Sell | Tax Withholding | 337 | $52K | 10/31/2025 |
| Sean Godbout | ▲ Buy | Option Exercise | 26 | $0 | 10/2/2025 |
| Sean Godbout | ▼ Sell | Tax Withholding | 8 | $1K | 10/2/2025 |
| Priya Singhal | ▼ Sell | Open Market | 517 | $69K | 9/2/2025 |
| Priya Singhal | ▲ Buy | Option Exercise | 1,669 | $0 | 8/29/2025 |
| Priya Singhal | ▼ Sell | Tax Withholding | 807 | $107K | 8/29/2025 |
| Rachid Izzar | ▼ Sell | Open Market | 2,223 | $300K | 7/8/2025 |
| Lloyd Minor | ▲ Buy | Grant | 2,370 | $0 | 6/17/2025 |