Biogen Inc. (BIIB) stock trades by Congress
Sector: Health care & pharma
Members of Congress disclosed 18 trades in Biogen Inc. (BIIB) between Nov 2024 and Aug 2026: 12 purchases and 6 sales by 6 members. The most active were Ro Khanna (D-CA, 8 trades), Maria Salazar (R-FL, 3 trades) and Robert Bresnahan (R-PA, 3 trades). The latest trade listed here is from August 18, 2026. 1 newer trade from the last 60 days is shown in TraderCongress Pro.
- Trades (2 years)
- 18
- Purchases
- 12
- Sales
- 6
- Members
- 6
Democrat Democrats: 10Republican Republicans: 8
Which members of Congress traded BIIB?
Who else trades BIIB?
- President Donald Trump's financial disclosures list 2 trades in BIIB, the latest dated June 12, 2026.
- Steve Cohen (Point72) held BIIB in the 13F filing for the quarter ended June 30, 2026.
Positions, changes and the full presidential record are in Celebrity Portfolio, part of TraderCongress Pro.
Latest BIIB trades by members of Congress
The 18 most recent trades older than 60 days, as filed: amounts are the disclosed ranges. 1 newer trade is in TraderCongress Pro.
| Member | Trade | Amount | Traded | Disclosed |
|---|---|---|---|---|
| Kevin HernR-OK · House | Sell | $1K–15K | Aug 18, 2026 | Sep 1, 2026 |
| Gilbert CisnerosD-CA · House | Buy | $1K–15K | Jun 5, 2026 | Jul 2, 2026 |
| Maria SalazarR-FL · House | Sell | $15K–50K | Jun 2, 2026 | Jul 7, 2026 |
| Maria SalazarR-FL · House | Buy | $1K–15K | May 12, 2026 | Jun 8, 2026 |
| Maria SalazarR-FL · House | Buy | $50K–100K | May 11, 2026 | Jun 8, 2026 |
| Alan ArmstrongR-OK · Senate | Buy | $1K–15K | Mar 27, 2026 | Jul 21, 2026 |
| Gilbert CisnerosD-CA · House | Buy | $1K–15K | Jan 30, 2026 | Feb 13, 2026 |
| Ro KhannaD-CA · House | Buy | $1K–15K | Jan 29, 2026 | Feb 6, 2026 |
| Ro KhannaD-CA · House | Buy | $1K–15K | Aug 26, 2025 | Sep 9, 2025 |
| Ro KhannaD-CA · House | Sell | $1K–15K | May 19, 2025 | Jun 10, 2025 |
| Robert BresnahanR-PA · House | Buy | $1K–15K | May 15, 2025 | Jun 9, 2025 |
| Ro KhannaD-CA · House | Buy | $1K–15K | Apr 23, 2025 | May 12, 2025 |
| Robert BresnahanR-PA · House | Sell | $1K–15K | Apr 8, 2025 | May 8, 2025 |
| Robert BresnahanR-PA · House | Buy | $1K–15K | Feb 25, 2025 | Mar 27, 2025 |
| Ro KhannaD-CA · House | Buy | $1K–15K | Feb 25, 2025 | Mar 6, 2025 |
| Ro KhannaD-CA · House | Sell | $1K–15K | Feb 19, 2025 | Mar 6, 2025 |
| Ro KhannaD-CA · House | Sell | $1K–15K | Jan 17, 2025 | Feb 6, 2025 |
| Ro KhannaD-CA · House | Buy | $1K–15K | Nov 15, 2024 | Dec 5, 2024 |
Frequently asked questions
- Which members of Congress traded BIIB?
- 6 members of Congress disclosed trades in Biogen Inc. (BIIB) in the last two years, led by Ro Khanna (8 trades), Maria Salazar (3 trades), Robert Bresnahan (3 trades), Gilbert Cisneros (2 trades) and Alan Armstrong (1 trade).
- Is Congress buying or selling BIIB?
- Members have mostly been buying BIIB: 12 purchases and 6 sales. Democrats made 10 trades and Republicans 8 trades.
- When did a member of Congress last trade BIIB?
- The latest trade listed here is from August 18, 2026. Members have up to 45 days to disclose a trade, so newer ones appear as they are filed.
- Do famous investors own BIIB?
- Yes. In their latest SEC 13F filings, Steve Cohen reported holding BIIB. TraderCongress Pro shows their positions and changes in Celebrity Portfolio.