Congressional trading
Biogen
BIIB · Pharmaceutical
Total trades
14
Politicians involved
6
Net flow
$-28K
Conflict-flagged
4 (29%)
Top traders in BIIB
Every disclosed trade in BIIB
| Politician | Side | Amount | Trade date | Filed | Conflict |
|---|---|---|---|---|---|
 Gilbert Ray Cisneros Jr. DHouse | BUY | $1K-$15K | Jan 30, 2026 | Feb 13, 2026 | — |
 Robert P. Bresnahan Jr. RHouse | BUY | $1K-$15K | May 15, 2025 | Jun 9, 2025 | ⚑ Pharmaceutical |
Robert P. Bresnahan Jr. RHouse | SELL | $1K-$15K | Apr 8, 2025 | May 8, 2025 | ⚑ Pharmaceutical |
Robert P. Bresnahan Jr. RHouse | BUY | $1K-$15K | Feb 25, 2025 | Mar 27, 2025 | ⚑ Pharmaceutical |
 Shri Thanedar DHouse | SELL | $50K-$100K | Jan 23, 2023 | Feb 9, 2023 | — |
 Susan M. Collins RSenate | BUY | $15K-$50K | Nov 3, 2022 | Dec 16, 2022 | ⚑ Pharmaceutical |
 Kathy Manning DHouse | SELL | $1K-$15K | Aug 3, 2022 | Sep 14, 2022 | — |
Kathy Manning DHouse | BUY | $1K-$15K | Jul 15, 2022 | Aug 10, 2022 | — |
 Josh Gottheimer DHouse | BUY | $1K-$15K | Mar 9, 2022 | Apr 17, 2022 | — |
Kathy Manning DHouse | BUY | $15K-$30K | Jan 12, 2022 | Feb 11, 2022 | — |
Josh Gottheimer DHouse | SELL | $1K-$15K | Dec 9, 2021 | Jan 10, 2022 | — |
Josh Gottheimer DHouse | SELL | $1K-$15K | Oct 18, 2021 | Nov 15, 2021 | — |
Josh Gottheimer DHouse | SELL | $1K-$15K | Sep 1, 2021 | Oct 13, 2021 | — |
Josh Gottheimer DHouse | SELL | $1K-$15K | Jun 8, 2021 | Jul 15, 2021 | — |