This page tracks congressional stock trading activity in BIIB in the Healthcare sector. Disclosed Capitol has indexed 186 disclosed congressional trades involving BIIB. Every trade is sourced from official STOCK Act financial disclosure filings — the same primary records the Senate and House are required to publish. The full trade list with politician names, transaction types, amount ranges, and disclosure dates is below, alongside cross-references to any related lobbying activity, federal contracts, and committee assignments.
| Politician | Type | Date |
|---|---|---|
| SELL | Feb 5, 2026 | |
| BUY | Jan 30, 2026 | |
| SELL | Aug 26, 2025 | |
| BUY | May 19, 2025 | |
| BUY | May 15, 2025 | |
| SELL | Apr 8, 2025 | |
| BUY | Feb 26, 2025 | |
| BUY | Feb 25, 2025 | |
| SELL | Feb 19, 2025 | |
| BUY | Feb 9, 2025 |