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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.

Congressional Stock Trades

Every publicly disclosed stock and asset transaction filed by US Congress members under the STOCK Act.

All transactions are sourced directly from Periodic Transaction Reports (PTRs) filed with the House of Representatives and the US Senate. Congress members must report trades within 45 days under the STOCK Act of 2012. Dollar amounts are shown as disclosed ranges, not exact figures. See the most active traders or browse by politician, stock, or committee. Notice something missing? Report a trade.

Showing trades in ALXNClear
DatePoliticianAssetTypeOwnerAmountSecurityDetails
2015-12-14MICHAEL T. MCCAUL
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
buyDC$1K – $15KStockDetails
2015-12-11JAMES B. RENACCI
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
buySelf$50K – $100KStock
MICHAEL T. MCCAULbuy
ALXNAlexion Pharmaceuticals, Inc.
2015-12-14$1K – $15K
JAMES B. RENACCIbuy
ALXNAlexion Pharmaceuticals, Inc.
2015-12-11$50K – $100K
MICHAEL T. MCCAULbuy
ALXNAlexion Pharmaceuticals, Inc.
2015-12-09$1K – $15K
MICHAEL T. MCCAULbuy
Prev
123
Next
Details
2015-12-09MICHAEL T. MCCAUL
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
buyDC$1K – $15KStockDetails
2015-12-03MICHAEL T. MCCAUL
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
buySpouse$1K – $15KStockDetails
2015-10-28MICHAEL T. MCCAUL
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
sellDC$15K – $50KStockDetails
2015-08-28MICHAEL T. MCCAUL
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
buySpouse$1K – $15KStockDetails
2015-07-30MICHAEL T. MCCAUL
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
sellDC$1K – $15KStockDetails
2015-07-30JAMES B. RENACCI
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
sellSelf$15K – $50KStockDetails
2015-07-29JAMES B. RENACCI
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
buySelf$1K – $15KStockDetails
2015-07-29JAMES B. RENACCI
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
sellSelf$1K – $15KStockDetails
2015-05-29MICHAEL T. MCCAUL
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
sellDC$1K – $15KStockDetails
2015-02-09K. Michael Conaway
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
buySpouse$1K – $15KStockDetails
2015-02-05MICHAEL T. MCCAUL
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
sellSelf$15K – $50KStockDetails
2015-01-27Thomas MacArthur
Unknown · house
ALXN
Alexion Pharmaceuticals, Inc.
sellJT$1K – $15KStockDetails
2015-01-21Thomas MacArthur
Unknown · house
ALXN
Alexion Pharmaceuticals, Inc.
buyJT$1K – $15KStockDetails
2012-08-05JAMES B. RENACCI
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
buySelf$2,129.25StockDetails
2012-08-02JAMES B. RENACCI
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
sellSelf$1,757.78StockDetails
2012-05-10JAMES B. RENACCI
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
sellSelf$2,947.88StockDetails
2012-05-10JAMES B. RENACCI
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
sellSelf$2,947.58StockDetails
2012-05-04JAMES B. RENACCI
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
sellSelf$1,018.58StockDetails
2012-03-07JAMES B. RENACCI
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
sellSelf$3,093.62StockDetails
2012-03-07JAMES B. RENACCI
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
sellSelf$3,039.82StockDetails
2012-03-07JAMES B. RENACCI
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
sellSelf$3,091.52StockDetails
2012-03-07JAMES B. RENACCI
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
sellSelf$3,099.82StockDetails
2011-08-08JAMES B. RENACCI
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
buySelf$2,982.82StockDetails
2010-11-02Vern Buchanan
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
buySelf$1K – $15KStockDetails
2010-10-05JAMES B. RENACCI
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
buySelf$212.24StockDetails
2008-02-07JOHN H. ADLER
Unknown · house
ALXN
Alexion Pharmaceuticals, Inc.
sellJoint$15K – $50KStockDetails
2008-01-07JOHN H. ADLER
Unknown · house
ALXN
Alexion Pharmaceuticals, Inc.
buyJoint$15K – $50KStockDetails
2007-06-10Lamar Smith
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
buySelf$1K – $15KStockDetails
2007-06-10Lamar Smith
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
buySelf$1K – $15KStockDetails
2007-06-10Lamar Smith
Republican · house
ALXN
Alexion Pharmaceuticals, Inc.
buySelf$1K – $15KStockDetails
2001-09-12JAMES R. LANGEVIN
Democrat · house
ALXN
Alexion Pharmaceuticals, Inc.
buySelf$15K – $50KStockDetails
ALXNAlexion Pharmaceuticals, Inc.
2015-12-03$1K – $15K
MICHAEL T. MCCAULsell
ALXNAlexion Pharmaceuticals, Inc.
2015-10-28$15K – $50K
MICHAEL T. MCCAULbuy
ALXNAlexion Pharmaceuticals, Inc.
2015-08-28$1K – $15K
MICHAEL T. MCCAULsell
ALXNAlexion Pharmaceuticals, Inc.
2015-07-30$1K – $15K
JAMES B. RENACCIsell
ALXNAlexion Pharmaceuticals, Inc.
2015-07-30$15K – $50K
JAMES B. RENACCIbuy
ALXNAlexion Pharmaceuticals, Inc.
2015-07-29$1K – $15K
JAMES B. RENACCIsell
ALXNAlexion Pharmaceuticals, Inc.
2015-07-29$1K – $15K
MICHAEL T. MCCAULsell
ALXNAlexion Pharmaceuticals, Inc.
2015-05-29$1K – $15K
K. Michael Conawaybuy
ALXNAlexion Pharmaceuticals, Inc.
2015-02-09$1K – $15K
MICHAEL T. MCCAULsell
ALXNAlexion Pharmaceuticals, Inc.
2015-02-05$15K – $50K
Thomas MacArthursell
ALXNAlexion Pharmaceuticals, Inc.
2015-01-27$1K – $15K
Thomas MacArthurbuy
ALXNAlexion Pharmaceuticals, Inc.
2015-01-21$1K – $15K
JAMES B. RENACCIbuy
ALXNAlexion Pharmaceuticals, Inc.
2012-08-05$2,129.25
JAMES B. RENACCIsell
ALXNAlexion Pharmaceuticals, Inc.
2012-08-02$1,757.78
JAMES B. RENACCIsell
ALXNAlexion Pharmaceuticals, Inc.
2012-05-10$2,947.88
JAMES B. RENACCIsell
ALXNAlexion Pharmaceuticals, Inc.
2012-05-10$2,947.58
JAMES B. RENACCIsell
ALXNAlexion Pharmaceuticals, Inc.
2012-05-04$1,018.58
JAMES B. RENACCIsell
ALXNAlexion Pharmaceuticals, Inc.
2012-03-07$3,093.62
JAMES B. RENACCIsell
ALXNAlexion Pharmaceuticals, Inc.
2012-03-07$3,039.82
JAMES B. RENACCIsell
ALXNAlexion Pharmaceuticals, Inc.
2012-03-07$3,091.52
JAMES B. RENACCIsell
ALXNAlexion Pharmaceuticals, Inc.
2012-03-07$3,099.82
JAMES B. RENACCIbuy
ALXNAlexion Pharmaceuticals, Inc.
2011-08-08$2,982.82
Vern Buchananbuy
ALXNAlexion Pharmaceuticals, Inc.
2010-11-02$1K – $15K
JAMES B. RENACCIbuy
ALXNAlexion Pharmaceuticals, Inc.
2010-10-05$212.24
JOHN H. ADLERsell
ALXNAlexion Pharmaceuticals, Inc.
2008-02-07$15K – $50K
JOHN H. ADLERbuy
ALXNAlexion Pharmaceuticals, Inc.
2008-01-07$15K – $50K
Lamar Smithbuy
ALXNAlexion Pharmaceuticals, Inc.
2007-06-10$1K – $15K
Lamar Smithbuy
ALXNAlexion Pharmaceuticals, Inc.
2007-06-10$1K – $15K
Lamar Smithbuy
ALXNAlexion Pharmaceuticals, Inc.
2007-06-10$1K – $15K
JAMES R. LANGEVINbuy
ALXNAlexion Pharmaceuticals, Inc.
2001-09-12$15K – $50K