No open-market buys or sells in this period. The transactions below are grants, option exercises and gifts, which carry no market price.
Trading track record · all companies
Not enough open-market trades to chart a track record yet.
Running net of open-market buys − sells across every company. Tap the line or a marker for details. ▲ buy · ▼ sell.
Transactions · 365d
No open-market buys or sells in this period — showing all activity (grants, exercises & gifts).
-
BIIB Grant·A
President and CEO
$0
38.0K sh
Own New
-
BIIB Exercise·M
President and CEO
$0
24.5K sh · 2 lots
Own +379%
-
BIIB Other·F
President and CEO
$2.2M
11.0K sh · $201.18 avg · 2 lots
Own -34%
-
BIIB Exercise·M
President and CEO
$0
24.5K sh · 2 lots
Own +202%
-
BIIB Exercise·M
President and CEO
$0
7.0K sh
Own New
-
BIIB Other·F
President and CEO
$605.2K
3.4K sh · $177.78
Own -17%
-
BIIB Exercise·M
President and CEO
$0
7.0K sh
Own +55%
| Date▾ | Ticker | Type | Shares | Value |
|---|---|---|---|---|
| Feb 13, 2026 | BIIB | Grant A | 38.0K | $0 |
| Feb 6, 2026 | BIIB | Exercise M | 24.5K2 lots | $0 |
| Feb 6, 2026 | BIIB | Other F | 11.0K2 lots | $2.2M |
| Feb 6, 2026 | BIIB | Exercise M | 24.5K2 lots | $0 |
| Dec 1, 2025 | BIIB | Exercise M | 7.0K | $0 |
| Dec 1, 2025 | BIIB | Other F | 3.4K | $605.2K |
| Dec 1, 2025 | BIIB | Exercise M | 7.0K | $0 |
Buy Sell Non-market (grant · exercise · gift)
About Viehbacher Christopher
This profile aggregates every SEC Form 4 insider transaction reported by Viehbacher Christopher across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.