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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 firm focused on developing therapies for neurological and neurodegenerative diseases, including multiple sclerosis and Alzheimer's. Investors monitor Biogen for its pipeline of innovative treatments and its role in the competitive CNS drug market.

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

Congressional Interest in Biogen Inc. (BIIB)

2 members of Congress have disclosed 2 trades in Biogen Inc. (BIIB), a Healthcare company. The buy/sell breakdown shows 1 purchase versus 1 sale. All data is sourced from STOCK Act periodic transaction reports filed with Congress.

Total Disclosures
2
Unique Politicians
2
Buys
1
Sells
1

Who in Congress Is Trading BIIB?

DatePoliticianTypeAmountSecurity
2007-06-11JANE HARMANbuy$50K – $100KStock
2007-03-08CAROLYN MCCARTHYsell$663.33Stock

Related

All stocks traded by CongressFull trade feedMost active tradersAbout the STOCK ActReport missing trade
JANE HARMANbuy
2007-06-11$50K – $100K
Stock
CAROLYN MCCARTHYsell
2007-03-08$663.33
Stock
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