Form 4 for BIIB Biogen
Accepted 2026-02-10 00:00:00 ET · period of report 2026-02-06 · accession 0000875045-26-000016 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-02-10 | 2026-02-06 | BIIB | Godbout Sean | CAO | M - OptEx | $0.00 | +1,079 | 980.67 | New | $0 |
| DM | 2026-02-10 | 2026-02-06 | BIIB | Godbout Sean | CAO | F - Tax | $201.18 | -359 | 1,215 | -23% | -$72.2K |
| DM | 2026-02-10 | 2026-02-06 | BIIB | Godbout Sean | CAO | M - OptEx | $0.00 | -1,079 | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-02-06 | M | A | 517 | $0.00 | 1,394.67 | D | — | — | |
| 2 | Common | Common Stock | 2026-02-06 | F | D | 103 | $201.18 | 877.67 | D | — | — | |
| 3 | Common | Common Stock | 2026-02-06 | F | D | 76 | $201.18 | 675.67 | D | — | — | |
| 4 | Common | Common Stock | 2026-02-06 | M | A | 257 | $0.00 | 751.67 | D | — | — | |
| 5 | Common | Common Stock | 2026-02-06 | F | D | 180 | $201.18 | 1,214.67 | D | — | — | |
| 6 | Common | Common Stock | 2026-02-06 | M | A | 305 | $0.00 | 980.67 | D | — | — | |
| 7 | Derivative | Restricted Stock Unit | 2026-02-06 | M | D | 517 | $0.00 | 1,035 | D | $0.00 · — to 2028-02-06 | 517 Common Stock | (F3) The restricted stock units vest in three (3) equal annual installments commencing one year after the grant date of 02/06/2025. |
| 8 | Derivative | Restricted Stock Unit | 2026-02-06 | M | D | 305 | $0.00 | 305 | D | $0.00 · — to 2027-02-07 | 305 Common Stock | (F2) The restricted stock units vest in three (3) equal annual installments commencing one year after the grant date of 02/07/2024. |
| 9 | Derivative | Restricted Stock Unit | 2026-02-06 | M | D | 257 | $0.00 | 0 | D | $0.00 · — to 2026-02-08 | 257 Common Stock | (F1) The restricted stock units vest in three (3) equal annual installments commencing one year after the grant date of 02/08/2023. |