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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
Alexion Pharmaceuticals, Inc.

Alexion Pharmaceuticals, Inc.ALXN

NASDAQHealthcareBiotechnology$182.50+0.00%

A biotechnology company focused on developing therapies for rare and life‑threatening diseases, particularly those involving the complement system of the immune response. Its flagship drugs, including Soliris and Ultomiris, became major treatments for ultra‑rare blood and neurological disorders and ...

Market Cap: $052W Range: $99.91 – $187.45

Congressional Interest in Alexion Pharmaceuticals, Inc. (ALXN)

8 members of Congress have disclosed 31 trades in Alexion Pharmaceuticals, Inc. (ALXN), a Healthcare company. The buy/sell breakdown shows 17 purchases versus 14 sales, indicating net buying interest from lawmakers. All data is sourced from STOCK Act periodic transaction reports filed with Congress.

Total Disclosures
31
Unique Politicians
8
Buys
17
Sells
14

Who in Congress Is Trading ALXN?

DatePoliticianTypeAmountSecurity
2015-12-14MICHAEL T. MCCAULbuy$1K – $15KStock
2015-12-11JAMES B. RENACCIbuy$50K – $100KStock

Related

All stocks traded by CongressFull trade feedMost active tradersAbout the STOCK ActReport missing trade
2015-12-09MICHAEL T. MCCAULbuy$1K – $15KStock
2015-12-03MICHAEL T. MCCAULbuy$1K – $15KStock
2015-10-28MICHAEL T. MCCAULsell$15K – $50KStock
2015-08-28MICHAEL T. MCCAULbuy$1K – $15KStock
2015-07-30MICHAEL T. MCCAULsell$1K – $15KStock
2015-07-30JAMES B. RENACCIsell$15K – $50KStock
2015-07-29JAMES B. RENACCIbuy$1K – $15KStock
2015-07-29JAMES B. RENACCIsell$1K – $15KStock
2015-05-29MICHAEL T. MCCAULsell$1K – $15KStock
2015-02-09K. Michael Conawaybuy$1K – $15KStock
2015-02-05MICHAEL T. MCCAULsell$15K – $50KStock
2015-01-27Thomas MacArthursell$1K – $15KStock
2015-01-21Thomas MacArthurbuy$1K – $15KStock
2012-08-05JAMES B. RENACCIbuy$2,129.25Stock
2012-08-02JAMES B. RENACCIsell$1,757.78Stock
2012-05-10JAMES B. RENACCIsell$2,947.88Stock
2012-05-04JAMES B. RENACCIsell$1,018.58Stock
2012-03-07JAMES B. RENACCIsell$3,093.62Stock
2012-03-07JAMES B. RENACCIsell$3,039.82Stock
2012-03-07JAMES B. RENACCIsell$3,091.52Stock
2011-08-08JAMES B. RENACCIbuy$2,982.82Stock
2010-11-02Vern Buchananbuy$1K – $15KStock
2010-10-05JAMES B. RENACCIbuy$212.24Stock
2008-02-07JOHN H. ADLERsell$15K – $50KStock
2008-01-07JOHN H. ADLERbuy$15K – $50KStock
2007-06-10Lamar Smithbuy$1K – $15KStock
2007-06-10Lamar Smithbuy$1K – $15KStock
2007-06-10Lamar Smithbuy$1K – $15KStock
2001-09-12JAMES R. LANGEVINbuy$15K – $50KStock
MICHAEL T. MCCAULbuy
2015-12-14$1K – $15K
Stock
JAMES B. RENACCIbuy
2015-12-11$50K – $100K
Stock
MICHAEL T. MCCAULbuy
2015-12-09$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2015-12-03$1K – $15K
Stock
MICHAEL T. MCCAULsell
2015-10-28$15K – $50K
Stock
MICHAEL T. MCCAULbuy
2015-08-28$1K – $15K
Stock
MICHAEL T. MCCAULsell
2015-07-30$1K – $15K
Stock
JAMES B. RENACCIsell
2015-07-30$15K – $50K
Stock
JAMES B. RENACCIbuy
2015-07-29$1K – $15K
Stock
JAMES B. RENACCIsell
2015-07-29$1K – $15K
Stock
MICHAEL T. MCCAULsell
2015-05-29$1K – $15K
Stock
K. Michael Conawaybuy
2015-02-09$1K – $15K
Stock
MICHAEL T. MCCAULsell
2015-02-05$15K – $50K
Stock
Thomas MacArthursell
2015-01-27$1K – $15K
Stock
Thomas MacArthurbuy
2015-01-21$1K – $15K
Stock
JAMES B. RENACCIbuy
2012-08-05$2,129.25
Stock
JAMES B. RENACCIsell
2012-08-02$1,757.78
Stock
JAMES B. RENACCIsell
2012-05-10$2,947.88
Stock
JAMES B. RENACCIsell
2012-05-04$1,018.58
Stock
JAMES B. RENACCIsell
2012-03-07$3,093.62
Stock
JAMES B. RENACCIsell
2012-03-07$3,039.82
Stock
JAMES B. RENACCIsell
2012-03-07$3,091.52
Stock
JAMES B. RENACCIbuy
2011-08-08$2,982.82
Stock
Vern Buchananbuy
2010-11-02$1K – $15K
Stock
JAMES B. RENACCIbuy
2010-10-05$212.24
Stock
JOHN H. ADLERsell
2008-02-07$15K – $50K
Stock
JOHN H. ADLERbuy
2008-01-07$15K – $50K
Stock
Lamar Smithbuy
2007-06-10$1K – $15K
Stock
Lamar Smithbuy
2007-06-10$1K – $15K
Stock
Lamar Smithbuy
2007-06-10$1K – $15K
Stock
JAMES R. LANGEVINbuy
2001-09-12$15K – $50K
Stock
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