Form 4 for BIIB Biogen
Accepted 2026-06-11 17:21:32 ET · period of report 2026-06-09 · accession 0000875045-26-000055 · 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 | 2026-06-11 17:21 | 2026-06-09 | BIIB | Pangalos Menelas N | Dir | M - OptEx | $0.00 | +2,370 | 2,370 | New | $0 |
| D | 2026-06-11 17:21 | 2026-06-09 | BIIB | Pangalos Menelas N | Dir | A - Grant | $0.00 | +1,505 | 3,875 | +64% | $0 |
| D | 2026-06-11 17:21 | 2026-06-09 | BIIB | Pangalos Menelas N | Dir | M - OptEx | $0.00 | -2,370 | 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 | 2026-06-09 | M | A | 2,370 | $0.00 | 2,370 | D | — | — | |
| 2 | Common | Common Stock | 2026-06-09 | A | A | 1,505 | $0.00 | 3,875 | D | — | — | (F1) The restricted stock units vest on the earlier of (i) the next annual meeting or (ii) the anniversary of the date of grant of June 9, 2026. |
| 3 | Derivative | Restricted Stock Unit | 2026-06-09 | M | D | 2,370 | $0.00 | 0 | D | $0.00 · — to 2026-06-17 | 2,370 Common Stock | (F2) The restricted stock units vest on the earlier of (i) the next annual meeting or (ii) the anniversary of the date of grant of June 17, 2025. |