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Congress Stock Tracker

Tracking congressional stock trades from public STOCK Act Periodic Transaction Reports (PTRs) filed by members of the US House and Senate.

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© 2026 Congress Stock Tracker. Data from public STOCK Act filings.For informational purposes only. Not financial advice.
Stocks
Biogen Inc.

Biogen Inc.BIIB

NASDAQHealthcareBiotechnology$181.55-1.81%

A biotechnology company focused on therapies for neurological and neurodegenerative diseases, including multiple sclerosis, Alzheimer’s disease, and spinal muscular atrophy. Its revenue base has historically been driven by MS treatments, while newer Alzheimer’s drugs and a late‑stage pipeline are cl...

Market Cap: $26.6B52W Range: $110.04 – $202.41

Congressional Interest in Biogen Inc. (BIIB)

4 members of Congress have disclosed 50 trades in Biogen Inc. (BIIB), a Healthcare company. The buy/sell breakdown shows 27 purchases versus 22 sales, indicating net buying interest from lawmakers. All data is sourced from STOCK Act periodic transaction reports filed with Congress.

Total Disclosures
50
Unique Politicians
4
Buys
27
Sells
22

Who in Congress Is Trading BIIB?

DatePoliticianTypeAmountSecurity
2026-02-06Rohit Khannabuy$1K – $15KStock
2026-01-29Rohit Khannabuy$1K – $15KStock
2025-08-04Rohit Khannasell$1K – $15KStock
2025-07-30JAMES B. RENACCIsell$15K – $50KStock
2025-07-30JAMES B. RENACCIbuy$15K – $50KStock
2025-07-30JAMES B. RENACCIsell$15K – $50KStock
2025-07-29JAMES B. RENACCIsell$15K – $50KStock
2025-07-09JAMES B. RENACCIbuy$1K – $15KStock
2025-05-29Rohit Khannasell$1K – $15KStock
2025-05-20JAMES B. RENACCIbuy$15K – $50KStock
2025-05-15Rob Bresnahanbuy$1K – $15KStock
2025-04-28JAMES B. RENACCIbuy$1K – $15KStock
2025-04-23Rohit Khannasell$1K – $15KStock
2025-04-22Rohit Khannasell$50K – $100KStock
2025-04-17Rohit Khannasell$1K – $15KStock
2025-04-08Rob Bresnahansell$1K – $15KStock
2025-02-25Rohit Khannabuy$1K – $15KStock
2025-02-25Rob Bresnahanbuy$1K – $15KStock
2025-02-19Rohit Khannasell$1K – $15KStock
2025-01-26JAMES B. RENACCIbuy$1K – $15KStock
2024-12-18Rohit Khannabuy$1K – $15KStock
2024-12-16Rohit Khannabuy$1K – $15KStock
2024-11-15Rohit Khannasell—Stock
2024-11-15JAMES B. RENACCIbuy$15K – $50KStock
2024-11-12JAMES B. RENACCIbuy$1K – $15KStock
2024-11-12JAMES B. RENACCIbuy$1K – $15KStock
2024-10-04Rohit Khannaexchange$1K – $15KStock
2024-09-09Rohit Khannabuy$1K – $15KStock
2024-09-09Rohit Khannasell$1K – $15KStock
2024-09-06Rohit Khannabuy$1K – $15KStock
2024-08-05Rohit Khannasell$1K – $15KStock
2024-08-02Rohit Khannasell$1K – $15KStock
2024-07-25JAMES B. RENACCIsell$1K – $15KStock
2024-06-27Rohit Khannasell$1K – $15KStock
2024-05-09JAMES B. RENACCIsell$1K – $15KStock
2024-05-09JAMES B. RENACCIsell$1K – $15KStock
2024-04-23Rohit Khannabuy$1K – $15KStock
2024-03-25Rohit Khannabuy$1K – $15KStock
2024-03-20Rohit Khannabuy$1K – $15KStock
2024-02-13Rohit Khannabuy$1K – $15KStock
2024-02-11MICHAEL T. MCCAULbuy$1K – $15KStock
2024-02-04JAMES B. RENACCIsell$1K – $15KStock
2024-01-30JAMES B. RENACCIsell$1K – $15KStock
2024-01-10Rohit Khannabuy$1K – $15KStock
2024-01-06JAMES B. RENACCIsell$1K – $15KStock
2023-12-05Rohit Khannabuy$1K – $15KStock
2023-12-05Rohit Khannasell$1K – $15KStock
2023-12-04Rohit Khannabuy$1K – $15KStock
2023-11-03Rohit Khannabuy$1K – $15KStock
2023-10-24Rohit Khannabuy$1K – $15KStock
Rohit Khannabuy
2026-02-06$1K – $15K
Stock
Rohit Khannabuy
2026-01-29$1K – $15K
Stock
Rohit Khannasell
2025-08-04$1K – $15K
Stock
JAMES B. RENACCIsell
2025-07-30$15K – $50K
Stock
JAMES B. RENACCIbuy
2025-07-30$15K – $50K
Stock
JAMES B. RENACCIsell
2025-07-30$15K – $50K
Stock
JAMES B. RENACCIsell
2025-07-29$15K – $50K
Stock
JAMES B. RENACCIbuy
2025-07-09$1K – $15K
Stock
Rohit Khannasell
2025-05-29$1K – $15K
Stock
JAMES B. RENACCIbuy
2025-05-20$15K – $50K
Stock
Rob Bresnahanbuy
2025-05-15$1K – $15K
Stock
JAMES B. RENACCIbuy
2025-04-28$1K – $15K
Stock
Rohit Khannasell
2025-04-23$1K – $15K
Stock
Rohit Khannasell
2025-04-22$50K – $100K
Stock
Rohit Khannasell
2025-04-17$1K – $15K
Stock
Rob Bresnahansell
2025-04-08$1K – $15K
Stock
Rohit Khannabuy
2025-02-25$1K – $15K
Stock
Rob Bresnahanbuy
2025-02-25$1K – $15K
Stock
Rohit Khannasell
2025-02-19$1K – $15K
Stock
JAMES B. RENACCIbuy
2025-01-26$1K – $15K
Stock
Rohit Khannabuy
2024-12-18$1K – $15K
Stock
Rohit Khannabuy
2024-12-16$1K – $15K
Stock
Rohit Khannasell
2024-11-15—
Stock
JAMES B. RENACCIbuy
2024-11-15$15K – $50K
Stock
JAMES B. RENACCIbuy
2024-11-12$1K – $15K
Stock
JAMES B. RENACCIbuy
2024-11-12$1K – $15K
Stock
Rohit Khannaexchange
2024-10-04$1K – $15K
Stock
Rohit Khannabuy
2024-09-09$1K – $15K
Stock
Rohit Khannasell
2024-09-09$1K – $15K
Stock
Rohit Khannabuy
2024-09-06$1K – $15K
Stock
Rohit Khannasell
2024-08-05$1K – $15K
Stock
Rohit Khannasell
2024-08-02$1K – $15K
Stock
JAMES B. RENACCIsell
2024-07-25$1K – $15K
Stock
Rohit Khannasell
2024-06-27$1K – $15K
Stock
JAMES B. RENACCIsell
2024-05-09$1K – $15K
Stock
JAMES B. RENACCIsell
2024-05-09$1K – $15K
Stock
Rohit Khannabuy
2024-04-23$1K – $15K
Stock
Rohit Khannabuy
2024-03-25$1K – $15K
Stock
Rohit Khannabuy
2024-03-20$1K – $15K
Stock
Rohit Khannabuy
2024-02-13$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2024-02-11$1K – $15K
Stock
JAMES B. RENACCIsell
2024-02-04$1K – $15K
Stock
JAMES B. RENACCIsell
2024-01-30$1K – $15K
Stock
Rohit Khannabuy
2024-01-10$1K – $15K
Stock
JAMES B. RENACCIsell
2024-01-06$1K – $15K
Stock
Rohit Khannabuy
2023-12-05$1K – $15K
Stock
Rohit Khannasell
2023-12-05$1K – $15K
Stock
Rohit Khannabuy
2023-12-04$1K – $15K
Stock
Rohit Khannabuy
2023-11-03$1K – $15K
Stock
Rohit Khannabuy
2023-10-24$1K – $15K
Stock
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