Form 4 for BIIB Biogen
Accepted 2026-04-03 16:05:27 ET · period of report 2026-04-01 · accession 0000875045-26-000036 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-04-03 16:05 | 2026-04-01 | BIIB | Godbout Sean | CAO | M - OptEx | $0.00 | +181 | 1,396 | +15% | $0 |
| D | 2026-04-03 16:05 | 2026-04-01 | BIIB | Godbout Sean | CAO | F - Tax | $183.78 | -54 | 1,342 | -4% | -$9,924 |
| D | 2026-04-03 16:05 | 2026-04-01 | BIIB | Godbout Sean | CAO | M - OptEx | $0.00 | -181 | 364 | -33% | $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 | 2026-04-01 | M | A | 181 | $0.00 | 1,395.67 | D | — | — | |
| 2 | Common | Common Stock | 2026-04-01 | F | D | 54 | $183.78 | 1,341.67 | D | — | — | |
| 3 | Derivative | Restricted Stock Unit | 2026-04-01 | M | D | 181 | $0.00 | 364 | D | $0.00 · — to 2028-04-01 | 181 Common Stock | (F1) The restricted stock units vest in three equal yearly installments beginning on the first anniversary of the grant date of April 1, 2025. |