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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
2010-03-11Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2010-03-08BRAD MILLER
Unknown · house
MRK
Merck & Co., Inc.
buySelf$1,362.23Stock
Vern Buchananbuy
MRKMerck & Co., Inc.
2010-03-11$1K – $15K
BRAD MILLERbuy
MRKMerck & Co., Inc.
2010-03-08$1,362.23
Vern Buchanansell
MRKMerck & Co., Inc.
2010-03-06$1K – $15K
Vern Buchanansell
Prev
1...101112
Next
Details
2010-03-06Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
sellSelf$1K – $15KStockDetails
2010-03-02Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
sellSelf$1K – $15KStockDetails
2010-02-12MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
buyDC$1K – $15KStockDetails
2010-02-09Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2010-02-09Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2010-02-03MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
sellSpouse$1K – $15KStockDetails
2010-01-02JAMES B. RENACCI
Republican · house
MRK
Merck & Co., Inc.
sellSelf$1,114.18StockDetails
2009-12-06W. TODD AKIN
Republican · house
MRK
Merck & Co., Inc.
sellJoint$1K – $15KStockDetails
2009-10-07MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
buySpouse$1K – $15KStockDetails
2009-10-07MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
buySpouse$1K – $15KStockDetails
2009-10-07LEE TERRY
Republican · house
MRK
Merck & Co., Inc.
sellJoint$1K – $15KStockDetails
2009-10-07LEE TERRY
Republican · house
MRK
Merck & Co., Inc.
sellJoint$15K – $50KStockDetails
2009-08-08F. JAMES SENSENBRENNER
Republican · house
MRK
Merck & Co., Inc.
sellSelf$50K – $100KStockDetails
2009-07-05JANE HARMAN
Unknown · house
MRK
Merck & Co., Inc.
sellSelf$15K – $50KStockDetails
2009-06-08JANE HARMAN
Unknown · house
MRK
Merck & Co., Inc.
buySelf$100K – $250KStockDetails
2009-06-04JANE HARMAN
Unknown · house
MRK
Merck & Co., Inc.
sellSelf$1K – $15KStockDetails
2009-03-11HARRY TEAGUE
Unknown · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2009-02-11F. JAMES SENSENBRENNER
Republican · house
MRK
Merck & Co., Inc.
buySelf$6,426.00StockDetails
2009-02-11F. JAMES SENSENBRENNER
Republican · house
MRK
Merck & Co., Inc.
buySelf$6,426.00StockDetails
2008-08-05Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2008-07-10Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2008-06-11Lamar Smith
Republican · house
MRK
Merck & Co., Inc.
sellSelf$7,443.50StockDetails
2008-06-03MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
sellSpouse—StockDetails
2008-06-03MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
buySpouse—StockDetails
2008-03-10JANE HARMAN
Unknown · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2008-03-10JANE HARMAN
Unknown · house
MRK
Merck & Co., Inc.
sellSelf$1K – $15KStockDetails
2008-03-09F. JAMES SENSENBRENNER
Republican · house
MRK
Merck & Co., Inc.
sellSelf—StockDetails
2008-03-09F. JAMES SENSENBRENNER
Republican · house
MRK
Merck & Co., Inc.
exchangeSelf—StockDetails
2008-03-09F. JAMES SENSENBRENNER
Republican · house
MRK
Merck & Co., Inc.
exchangeSelf—StockDetails
2008-03-09F. JAMES SENSENBRENNER
Republican · house
MRK
Merck & Co., Inc.
exchangeSelf—StockDetails
2008-03-01MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
sellSpouse—StockDetails
2008-03-01MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
buySpouse—StockDetails
2008-02-10Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
sellSelf$1K – $15KStockDetails
2008-02-01Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2008-01-10David P. Roe
Republican · house
MRK
Merck & Co., Inc.
buySelf$8,900.00StockDetails
2007-10-07Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2007-10-07Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2007-10-01Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2007-09-01JANE HARMAN
Unknown · house
MRK
Merck & Co., Inc.
buySelf$15K – $50KStockDetails
2007-09-01Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2007-08-10Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2007-07-08MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
sellSelf$42,498.63StockDetails
2007-07-08MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
sellSelf$24,298.63StockDetails
2007-07-02Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2007-06-11JANE HARMAN
Unknown · house
MRK
Merck & Co., Inc.
buySpouse$50K – $100KStockDetails
2007-06-02Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
sellSelf$1K – $15KStockDetails
2007-05-07Rodney P. Frelinghuysen
Republican · house
MRK
Merck & Co., Inc.
sellSelf$50K – $100KStockDetails
2007-03-04MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
buySelf$26,172.75StockDetails
MRKMerck & Co., Inc.
2010-03-02$1K – $15K
MICHAEL T. MCCAULbuy
MRKMerck & Co., Inc.
2010-02-12$1K – $15K
Vern Buchananbuy
MRKMerck & Co., Inc.
2010-02-09$1K – $15K
Vern Buchananbuy
MRKMerck & Co., Inc.
2010-02-09$1K – $15K
MICHAEL T. MCCAULsell
MRKMerck & Co., Inc.
2010-02-03$1K – $15K
JAMES B. RENACCIsell
MRKMerck & Co., Inc.
2010-01-02$1,114.18
W. TODD AKINsell
MRKMerck & Co., Inc.
2009-12-06$1K – $15K
MICHAEL T. MCCAULbuy
MRKMerck & Co., Inc.
2009-10-07$1K – $15K
MICHAEL T. MCCAULbuy
MRKMerck & Co., Inc.
2009-10-07$1K – $15K
LEE TERRYsell
MRKMerck & Co., Inc.
2009-10-07$1K – $15K
LEE TERRYsell
MRKMerck & Co., Inc.
2009-10-07$15K – $50K
F. JAMES SENSENBRENNERsell
MRKMerck & Co., Inc.
2009-08-08$50K – $100K
JANE HARMANsell
MRKMerck & Co., Inc.
2009-07-05$15K – $50K
JANE HARMANbuy
MRKMerck & Co., Inc.
2009-06-08$100K – $250K
JANE HARMANsell
MRKMerck & Co., Inc.
2009-06-04$1K – $15K
HARRY TEAGUEbuy
MRKMerck & Co., Inc.
2009-03-11$1K – $15K
F. JAMES SENSENBRENNERbuy
MRKMerck & Co., Inc.
2009-02-11$6,426.00
F. JAMES SENSENBRENNERbuy
MRKMerck & Co., Inc.
2009-02-11$6,426.00
Vern Buchananbuy
MRKMerck & Co., Inc.
2008-08-05$1K – $15K
Vern Buchananbuy
MRKMerck & Co., Inc.
2008-07-10$1K – $15K
Lamar Smithsell
MRKMerck & Co., Inc.
2008-06-11$7,443.50
MICHAEL T. MCCAULsell
MRKMerck & Co., Inc.
2008-06-03—
MICHAEL T. MCCAULbuy
MRKMerck & Co., Inc.
2008-06-03—
JANE HARMANbuy
MRKMerck & Co., Inc.
2008-03-10$1K – $15K
JANE HARMANsell
MRKMerck & Co., Inc.
2008-03-10$1K – $15K
F. JAMES SENSENBRENNERsell
MRKMerck & Co., Inc.
2008-03-09—
F. JAMES SENSENBRENNERexchange
MRKMerck & Co., Inc.
2008-03-09—
F. JAMES SENSENBRENNERexchange
MRKMerck & Co., Inc.
2008-03-09—
F. JAMES SENSENBRENNERexchange
MRKMerck & Co., Inc.
2008-03-09—
MICHAEL T. MCCAULsell
MRKMerck & Co., Inc.
2008-03-01—
MICHAEL T. MCCAULbuy
MRKMerck & Co., Inc.
2008-03-01—
Vern Buchanansell
MRKMerck & Co., Inc.
2008-02-10$1K – $15K
Vern Buchananbuy
MRKMerck & Co., Inc.
2008-02-01$1K – $15K
David P. Roebuy
MRKMerck & Co., Inc.
2008-01-10$8,900.00
Vern Buchananbuy
MRKMerck & Co., Inc.
2007-10-07$1K – $15K
Vern Buchananbuy
MRKMerck & Co., Inc.
2007-10-07$1K – $15K
Vern Buchananbuy
MRKMerck & Co., Inc.
2007-10-01$1K – $15K
JANE HARMANbuy
MRKMerck & Co., Inc.
2007-09-01$15K – $50K
Vern Buchananbuy
MRKMerck & Co., Inc.
2007-09-01$1K – $15K
Vern Buchananbuy
MRKMerck & Co., Inc.
2007-08-10$1K – $15K
MICHAEL T. MCCAULsell
MRKMerck & Co., Inc.
2007-07-08$42,498.63
MICHAEL T. MCCAULsell
MRKMerck & Co., Inc.
2007-07-08$24,298.63
Vern Buchananbuy
MRKMerck & Co., Inc.
2007-07-02$1K – $15K
JANE HARMANbuy
MRKMerck & Co., Inc.
2007-06-11$50K – $100K
Vern Buchanansell
MRKMerck & Co., Inc.
2007-06-02$1K – $15K
Rodney P. Frelinghuysensell
MRKMerck & Co., Inc.
2007-05-07$50K – $100K
MICHAEL T. MCCAULbuy
MRKMerck & Co., Inc.
2007-03-04$26,172.75