LANGER SUSAN (CIK 1982640) reported 2 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-11). Recent activity: Buy BIIB (1,505 shares), Buy BIIB (2,370 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-11 | BIOGEN INC. (BIIB) | Director | Buy | 1,505 | $0 |
| 2025-06-18 | BIOGEN INC. (BIIB) | Director | Buy | 2,370 | $0 |
来源：SEC Form 4 申报文件 · 截至 2026-06-11