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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 MRKClear
DatePoliticianAssetTypeOwnerAmountSecurityDetails
2007-03-04MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
buySelf$26,172.75StockDetails
2007-03-04MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
buySelf(26,172.75)Stock
MICHAEL T. MCCAULbuy
MRKMerck & Co., Inc.
2007-03-04$26,172.75
MICHAEL T. MCCAULbuy
MRKMerck & Co., Inc.
2007-03-04(26,172.75)
Rubén Hinojosasell
MRKMerck & Co., Inc.
2007-02-12$1K – $15K
MICHAEL T. MCCAULsell
Prev
1...1112
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Details
2007-02-12Rubén Hinojosa
Democrat · house
MRK
Merck & Co., Inc.
sellDC$1K – $15KStockDetails
2007-02-05MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
sellSelf$28,145.55StockDetails
2006-11-08Lamar Smith
Republican · house
MRK
Merck & Co., Inc.
buySelf$2,258.47StockDetails
2006-11-07Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
sellSelf$1K – $15KStockDetails
2006-09-08Lamar Smith
Republican · house
MRK
Merck & Co., Inc.
buySelf$911.50StockDetails
2006-06-07Eric Cantor
Republican · house
MRK
Merck & Co., Inc.
sellSelf$15K – $50KStockDetails
2005-07-10Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2004-08-11John D. Dingell
Democrat · house
MRK
Merck & Co., Inc.
sellSpouse$1K – $15KStockDetails
2004-02-08Lamar Smith
Republican · house
MRK
Merck & Co., Inc.
buySelf$939.70StockDetails
2003-05-12Lou Barletta
Republican · house
MRK
Merck & Co., Inc.
sellSelf$1K – $15KStockDetails
2003-05-12Lou Barletta
Republican · house
MRK
Merck & Co., Inc.
sellSelf$1K – $15KStockDetails
2002-05-09MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
sellSpouse$15K – $50KStockDetails
2002-05-09MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
sellSpouse$1K – $15KStockDetails
2002-03-12KATHY CASTOR
Democrat · house
MRK
Merck & Co., Inc.
sellJoint$1K – $15KStockDetails
2001-06-11NAN A. S. HAYWORTH
Unknown · house
MRK
Merck & Co., Inc.
sellDC$1K – $15KStockDetails
MRKMerck & Co., Inc.
2007-02-05$28,145.55
Lamar Smithbuy
MRKMerck & Co., Inc.
2006-11-08$2,258.47
Vern Buchanansell
MRKMerck & Co., Inc.
2006-11-07$1K – $15K
Lamar Smithbuy
MRKMerck & Co., Inc.
2006-09-08$911.50
Eric Cantorsell
MRKMerck & Co., Inc.
2006-06-07$15K – $50K
Vern Buchananbuy
MRKMerck & Co., Inc.
2005-07-10$1K – $15K
John D. Dingellsell
MRKMerck & Co., Inc.
2004-08-11$1K – $15K
Lamar Smithbuy
MRKMerck & Co., Inc.
2004-02-08$939.70
Lou Barlettasell
MRKMerck & Co., Inc.
2003-05-12$1K – $15K
Lou Barlettasell
MRKMerck & Co., Inc.
2003-05-12$1K – $15K
MICHAEL T. MCCAULsell
MRKMerck & Co., Inc.
2002-05-09$15K – $50K
MICHAEL T. MCCAULsell
MRKMerck & Co., Inc.
2002-05-09$1K – $15K
KATHY CASTORsell
MRKMerck & Co., Inc.
2002-03-12$1K – $15K
NAN A. S. HAYWORTHsell
MRKMerck & Co., Inc.
2001-06-11$1K – $15K