SEC CIK 1774478
Viehbacher Christopher
Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| BIIBview stock → | 29,924 | 2026-02-06 |
Position History — BIIB
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — BIIB
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2026-02-13 | Grant / award (derivative) | 38,015 | $0.00 | 38,015 |
| 2026-02-06 | Option exercise (derivative) | 15,453 | $0.00 | 30,907 |
| 2026-02-06 | Option exercise (derivative) | 9,008 | $0.00 | 9,009 |
| 2026-02-06 | Tax withholding | 6,624 | $201.18 | 29,924 |
| 2026-02-06 | Option exercise | 15,453 | $0.00 | 36,548 |
| 2026-02-06 | Tax withholding | 4,356 | $201.18 | 21,095 |
| 2026-02-06 | Option exercise | 9,008 | $0.00 | 25,451 |
| 2025-12-01 | Option exercise (derivative) | 7,040 | $0.00 | 0 |
| 2025-12-01 | Tax withholding | 3,404 | $177.78 | 16,443 |
| 2025-12-01 | Option exercise | 7,040 | $0.00 | 19,847 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.