| Politician | Action | Description | Traded |
|---|---|---|---|
| Buy | Biogen Inc. | Jun 5, 2026 | |
| Sell | Biogen Inc. | Jun 2, 2026 | |
| Buy | BIOGEN INC CMN | May 22, 2026 | |
| Buy | Biogen Inc. | May 12, 2026 | |
| Buy | Biogen Inc. | May 11, 2026 | |
| Buy | Biogen Inc. | May 11, 2026 | |
| Sell | BIOGEN INC. CMN | Feb 5, 2026 | |
| Buy | Biogen Inc. | Jan 30, 2026 | |
| Sell | BIOGEN INC. CMN | Aug 26, 2025 | |
| Buy | BIOGEN INC. CMN | May 19, 2025 |
This page tracks congressional stock trading activity in Biogen Inc. (BIIB) in the Healthcare sector. Disclosed Capitol has indexed 192 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.
As of July 2026 — Disclosed Capitol has tracked 192 disclosed congressional trades in Biogen Inc. (BIIB) — 76:72 sell-heavy ratio — led by Ro Khanna (D).
| Date | Politician | Party | Action | Amount |
|---|---|---|---|---|
| 2026-06-05 | Gilbert Cisneros | D | Buy | $1,001 - $15,000 |
| 2026-06-02 | Maria Elvira Salazar | R | Sell | $15,001 - $50,000 |
| 2026-05-22 | Ro Khanna | D | Buy | $15,001 - $50,000 |
| 2026-05-12 | Maria Elvira Salazar | R | Buy | $1,001 - $15,000 |
| 2026-05-11 | Maria Elvira Salazar | R | Buy | $1,001 - $15,000 |
| 2026-05-11 | Maria Elvira Salazar | R | Buy | $50,001 - $100,000 |
| 2026-02-05 | Ro Khanna | D | Sell | $1,001 - $15,000 |
| 2026-01-30 | Gilbert Cisneros | D | Buy | $1,001 - $15,000 |
| 2025-08-26 | Ro Khanna | D | Sale | $1,001 - $15,000 |
| 2025-05-19 | Ro Khanna | D | Purchase | $1,001 - $15,000 |
Across the 192 disclosed congressional trades in Biogen Inc. (BIIB), members of Congress have reported 72 buys and 76 sells. The average 30-day alpha vs. the S&P 500 is -1.64%.