Kramer Robin (CIK 1609222) reported 6 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-02-10). Recent activity: Buy BIIB (789 shares), Sell BIIB (273 shares), Buy BIIB (703 shares), Sell BIIB (207 shares), Buy BIIB (3,511 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-10 | BIOGEN INC. (BIIB) | Chief Financial Officer | Buy | 789 | $0 |
| 2026-02-10 | BIOGEN INC. (BIIB) | Chief Financial Officer | Sell | 273 | $54,922 |
| 2026-02-10 | BIOGEN INC. (BIIB) | Chief Financial Officer | Buy | 703 | $0 |
| 2026-02-10 | BIOGEN INC. (BIIB) | Chief Financial Officer | Sell | 207 | $41,644 |
| 2026-02-10 | BIOGEN INC. (BIIB) | Chief Financial Officer | Buy | 3,511 | $0 |
| 2026-02-10 | BIOGEN INC. (BIIB) | Chief Financial Officer | Sell | 1,063 | $213,854 |
来源：SEC Form 4 申报文件 · 截至 2026-02-10