Government & insidersBIIB chart & news
BIIB insider trading
Latest SEC Form 4 filings by BIIB officers, directors and 10% owners.
Showing the last 30 days. 98 older filings are PRO.See full history →
Open-market buys (0)
No open-market insider buys in recent BIIB filings.
Open-market sales (0)
No open-market insider sales in recent BIIB filings.
Other filings
Grants, option exercises, tax withholding and gifts. These usually aren’t a view on the stock.
- $87.5K
Grogan Jane
Head of Research
Tax withholding · 345 sh @ $253.62
Traded 2026-10-30 · Filed 2026-11-02
- —
Grogan Jane
Head of Research
Option exercise · 695 sh
Traded 2026-10-30 · Filed 2026-11-02
| Insider | Transaction | Shares | Price | Value | Traded | Filed |
|---|---|---|---|---|---|---|
Grogan Jane Head of Research | Tax withholding | 345 | $253.62 | $87.5K | 2026-10-30 | 2026-11-02 |
Grogan Jane Head of Research | Option exercise | 695 | — | — | 2026-10-30 | 2026-11-02 |
Source: SEC Form 4 filings. For education and research only. Not financial advice.