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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
2021-10-06Gus M. Bilirakis
Republican · house
MRK
Merck & Co., Inc.
sellSelf$1K – $15KStockDetails
2021-10-05Diana Harshbarger
Republican · house
MRK
Merck & Co., Inc.
sellSpouse$1K – $15KStock
Gus M. Bilirakissell
MRKMerck & Co., Inc.
2021-10-06$1K – $15K
Diana Harshbargersell
MRKMerck & Co., Inc.
2021-10-05$1K – $15K
MICHAEL T. MCCAULbuy
MRKMerck & Co., Inc.
2021-10-04$1K – $15K
MICHAEL T. MCCAULbuy
Prev
1...456...12
Next
Details
2021-10-04MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
buyDC$1K – $15KStockDetails
2021-10-04MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
buyDC$1K – $15KStockDetails
2021-09-30Diana Harshbarger
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2021-09-30Diana Harshbarger
Republican · house
MRK
Merck & Co., Inc.
sellJoint$1K – $15KStockDetails
2021-09-30Diana Harshbarger
Republican · house
MRK
Merck & Co., Inc.
buyDC$1K – $15KStockDetails
2021-09-30ZOE LOFGREN
Democrat · house
MRK
Merck & Co., Inc.
buySpouse$1K – $15KStockDetails
2021-09-27Diana Harshbarger
Republican · house
MRK
Merck & Co., Inc.
buyJoint$1K – $15KStockDetails
2021-09-22Diana Harshbarger
Republican · house
MRK
Merck & Co., Inc.
buySpouse$1K – $15KStockDetails
2021-09-16KATHERINE CLARK
Democrat · house
MRK
Merck & Co., Inc.
sellSpouse$1K – $15KStockDetails
2021-09-07Diana Harshbarger
Republican · house
MRK
Merck & Co., Inc.
buyDC$1K – $15KStockDetails
2021-09-06Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
sellSelf$1K – $15KStockDetails
2021-09-03Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2021-08-26Diana Harshbarger
Republican · house
MRK
Merck & Co., Inc.
sellSpouse$1K – $15KStockDetails
2021-08-17Thomas Suozzi
Democrat · house
MRK
Merck & Co., Inc.
buySelf$15K – $50KStockDetails
2021-08-06Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySpouse$1K – $15KStockDetails
2021-07-28Carol Devine Miller
Republican · house
MRK
Merck & Co., Inc.
sellSpouse$15K – $50KStockDetails
2021-07-27KATHERINE CLARK
Democrat · house
MRK
Merck & Co., Inc.
buySpouse$1K – $15KStockDetails
2021-07-27KATHERINE CLARK
Democrat · house
MRK
Merck & Co., Inc.
buySpouse$1K – $15KStockDetails
2021-07-19John Curtis
Republican · house
MRK
Merck & Co., Inc.
sellJoint$1K – $15KStockDetails
2021-07-06Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySpouse$1K – $15KStockDetails
2021-06-02John W Hickenlooper
Democrat · senate
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2021-06-01Vern Buchanan
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2021-05-25MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
buySpouse$50K – $100KStockDetails
2021-05-03MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
sellSelf$15K – $50KStockDetails
2021-04-09Sara Jacobs
Democrat · house
MRK
Merck & Co., Inc.
sellSelf$50K – $100KStockDetails
2021-03-29Thomas H Tuberville
Unknown · senate
MRK
Merck & Co., Inc.
sellJT$1K – $15KStockDetails
2021-03-17William R. Keating
Democrat · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2021-03-15MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
buySelf$50K – $100KStockDetails
2021-03-10Richard W. Allen
Republican · house
MRK
Merck & Co., Inc.
sellSpouse$15K – $50KStockDetails
2021-03-10Richard W. Allen
Republican · house
MRK
Merck & Co., Inc.
sellSelf$15K – $50KStockDetails
2021-03-01Diana Harshbarger
Republican · house
MRK
Merck & Co., Inc.
sellJT$1K – $15KStockDetails
2021-02-05Kurt Schrader
Democrat · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2021-01-28Peter Meijer
Republican · house
MRK
Merck & Co., Inc.
sellSelf$1K – $15KStockDetails
2021-01-28Peter Meijer
Republican · house
MRK
Merck & Co., Inc.
sellSelf$1K – $15KStockDetails
2021-01-27Diana Harshbarger
Republican · house
MRK
Merck & Co., Inc.
buyDC$1K – $15KStockDetails
2021-01-25Diana Harshbarger
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2021-01-22Diana Harshbarger
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2021-01-13Peter Meijer
Republican · house
MRK
Merck & Co., Inc.
buySelf$1K – $15KStockDetails
2021-01-05Diana Harshbarger
Republican · house
MRK
Merck & Co., Inc.
buyJoint$1K – $15KStockDetails
2021-01-04MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
buyDC$50K – $100KStockDetails
2020-12-15MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
buyDC$1K – $15KStockDetails
2020-11-17KENNY MARCHANT
Republican · house
MRK
Merck & Co., Inc.
buySelf$15K – $50KStockDetails
2020-11-16MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
sellSpouse$15K – $50KStockDetails
2020-11-13MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
sellSpouse$50K – $100KStockDetails
2020-11-13MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
buySpouse$50K – $100KStockDetails
2020-11-13MICHAEL T. MCCAUL
Republican · house
MRK
Merck & Co., Inc.
buySpouse$15K – $50KStockDetails
2020-11-06Tom Malinowski
Democrat · house
MRK
Merck & Co., Inc.
sellSelf$15 – $50StockDetails
2020-11-06Tom Malinowski
Democrat · house
MRK
Merck & Co., Inc.
sellSelf$15K – $50KStockDetails
MRKMerck & Co., Inc.
2021-10-04$1K – $15K
Diana Harshbargerbuy
MRKMerck & Co., Inc.
2021-09-30$1K – $15K
Diana Harshbargersell
MRKMerck & Co., Inc.
2021-09-30$1K – $15K
Diana Harshbargerbuy
MRKMerck & Co., Inc.
2021-09-30$1K – $15K
ZOE LOFGRENbuy
MRKMerck & Co., Inc.
2021-09-30$1K – $15K
Diana Harshbargerbuy
MRKMerck & Co., Inc.
2021-09-27$1K – $15K
Diana Harshbargerbuy
MRKMerck & Co., Inc.
2021-09-22$1K – $15K
KATHERINE CLARKsell
MRKMerck & Co., Inc.
2021-09-16$1K – $15K
Diana Harshbargerbuy
MRKMerck & Co., Inc.
2021-09-07$1K – $15K
Vern Buchanansell
MRKMerck & Co., Inc.
2021-09-06$1K – $15K
Vern Buchananbuy
MRKMerck & Co., Inc.
2021-09-03$1K – $15K
Diana Harshbargersell
MRKMerck & Co., Inc.
2021-08-26$1K – $15K
Thomas Suozzibuy
MRKMerck & Co., Inc.
2021-08-17$15K – $50K
Vern Buchananbuy
MRKMerck & Co., Inc.
2021-08-06$1K – $15K
Carol Devine Millersell
MRKMerck & Co., Inc.
2021-07-28$15K – $50K
KATHERINE CLARKbuy
MRKMerck & Co., Inc.
2021-07-27$1K – $15K
KATHERINE CLARKbuy
MRKMerck & Co., Inc.
2021-07-27$1K – $15K
John Curtissell
MRKMerck & Co., Inc.
2021-07-19$1K – $15K
Vern Buchananbuy
MRKMerck & Co., Inc.
2021-07-06$1K – $15K
John W Hickenlooperbuy
MRKMerck & Co., Inc.
2021-06-02$1K – $15K
Vern Buchananbuy
MRKMerck & Co., Inc.
2021-06-01$1K – $15K
MICHAEL T. MCCAULbuy
MRKMerck & Co., Inc.
2021-05-25$50K – $100K
MICHAEL T. MCCAULsell
MRKMerck & Co., Inc.
2021-05-03$15K – $50K
Sara Jacobssell
MRKMerck & Co., Inc.
2021-04-09$50K – $100K
Thomas H Tubervillesell
MRKMerck & Co., Inc.
2021-03-29$1K – $15K
William R. Keatingbuy
MRKMerck & Co., Inc.
2021-03-17$1K – $15K
MICHAEL T. MCCAULbuy
MRKMerck & Co., Inc.
2021-03-15$50K – $100K
Richard W. Allensell
MRKMerck & Co., Inc.
2021-03-10$15K – $50K
Richard W. Allensell
MRKMerck & Co., Inc.
2021-03-10$15K – $50K
Diana Harshbargersell
MRKMerck & Co., Inc.
2021-03-01$1K – $15K
Kurt Schraderbuy
MRKMerck & Co., Inc.
2021-02-05$1K – $15K
Peter Meijersell
MRKMerck & Co., Inc.
2021-01-28$1K – $15K
Peter Meijersell
MRKMerck & Co., Inc.
2021-01-28$1K – $15K
Diana Harshbargerbuy
MRKMerck & Co., Inc.
2021-01-27$1K – $15K
Diana Harshbargerbuy
MRKMerck & Co., Inc.
2021-01-25$1K – $15K
Diana Harshbargerbuy
MRKMerck & Co., Inc.
2021-01-22$1K – $15K
Peter Meijerbuy
MRKMerck & Co., Inc.
2021-01-13$1K – $15K
Diana Harshbargerbuy
MRKMerck & Co., Inc.
2021-01-05$1K – $15K
MICHAEL T. MCCAULbuy
MRKMerck & Co., Inc.
2021-01-04$50K – $100K
MICHAEL T. MCCAULbuy
MRKMerck & Co., Inc.
2020-12-15$1K – $15K
KENNY MARCHANTbuy
MRKMerck & Co., Inc.
2020-11-17$15K – $50K
MICHAEL T. MCCAULsell
MRKMerck & Co., Inc.
2020-11-16$15K – $50K
MICHAEL T. MCCAULsell
MRKMerck & Co., Inc.
2020-11-13$50K – $100K
MICHAEL T. MCCAULbuy
MRKMerck & Co., Inc.
2020-11-13$50K – $100K
MICHAEL T. MCCAULbuy
MRKMerck & Co., Inc.
2020-11-13$15K – $50K
Tom Malinowskisell
MRKMerck & Co., Inc.
2020-11-06$15 – $50
Tom Malinowskisell
MRKMerck & Co., Inc.
2020-11-06$15K – $50K