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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
Merck & Co., Inc.

Merck & Co., Inc.MRK

NYSEHealthcarePharmaceuticals$115.62-0.25%

A global pharmaceutical manufacturer focused on prescription medicines, vaccines, and biologic therapies, with major franchises in oncology, infectious diseases, and animal health. Its cancer immunotherapy Keytruda is one of the world’s highest‑selling drugs and a primary driver of revenue growth. I...

Market Cap: $285.9B52W Range: $73.31 – $125.14

Congressional Interest in Merck & Co., Inc. (MRK)

17 members of Congress have disclosed 50 trades in Merck & Co., Inc. (MRK), a Healthcare company. The buy/sell breakdown shows 26 purchases versus 24 sales, indicating net buying interest from lawmakers. All data is sourced from STOCK Act periodic transaction reports filed with Congress.

Total Disclosures
50
Unique Politicians
17
Buys
26
Sells
24

Who in Congress Is Trading MRK?

DatePoliticianTypeAmountSecurity
2019-04-18Mikie Sherrillsell$1K – $15KStock
2019-04-10David A Perdue , Jrsell$15K – $50KStock

Related

All stocks traded by CongressFull trade feedMost active tradersAbout the STOCK ActReport missing trade
2019-03-25Nicholas V. Taylorsell$1K – $15KStock
2019-02-19David A Perdue , Jrsell$15K – $50KStock
2019-01-11James M Inhofesell$100K – $250KStock
2018-11-30MICHAEL T. MCCAULbuy$1K – $15KStock
2018-11-19David P. Roesell$1K – $15KStock
2018-11-07Vern Buchananbuy$1K – $15KStock
2018-10-29David A Perdue , Jrsell$1K – $15KStock
2018-10-11MICHAEL T. MCCAULbuy$1K – $15KStock
2018-10-03David A Perdue , Jrsell$15K – $50KStock
2018-09-13David P. Roebuy$15K – $50KStock
2018-07-26FRED UPTONbuy$1K – $15KStock
2018-07-19MICHAEL T. MCCAULbuy$1K – $15KStock
2018-06-04Susan M Collinsbuy$1K – $15KStock
2018-05-24MICHAEL T. MCCAULsell$50K – $100KStock
2018-05-22David P. Roesell$15K – $50KStock
2018-05-14David P. Roesell$1K – $15KStock
2018-05-02MICHAEL T. MCCAULsell$1K – $15KStock
2018-04-24David A Perdue , Jrbuy$1K – $15KStock
2018-04-23MICHAEL T. MCCAULsell$1K – $15KStock
2018-04-03David P. Roebuy$1K – $15KStock
2018-04-03David P. Roebuy$1K – $15KStock
2018-03-29DAVID P. JOYCEsell$1K – $15KStock
2018-02-26MICHAEL T. MCCAULbuy$1K – $15KStock
2018-02-05MICHAEL T. MCCAULsell$1K – $15KStock
2018-01-16David A Perdue , Jrbuy$100K – $250KStock
2018-01-08ALAN S. LOWENTHALsell$567+Stock
2018-01-04Shelley M Capitosell$1K – $15KStock
2017-12-15Greg Gianfortesell$15K – $50KStock
2017-12-13David A Perdue , Jrsell$100K – $250KStock
2017-11-27Sheldon Whitehousesell$15K – $50KStock
2017-11-21Virginia Foxxsell$15K – $50KStock
2017-11-09John A. Yarmuthbuy$1K – $15KStock
2017-11-08ALAN S. LOWENTHALsell$15K – $50KStock
2017-10-30David A Perdue , Jrbuy$1K – $15KStock
2017-10-27David A Perdue , Jrbuy$15K – $50KStock
2017-10-26Shelley M Capitosell$1K – $15KStock
2017-10-18David A Perdue , Jrbuy$1K – $15KStock
2017-10-11Virginia Foxxbuy$1K – $15KStock
2017-10-05David A Perdue , Jrbuy$1K – $15KStock
2017-10-03MICHAEL T. MCCAULsell$1K – $15KStock
2017-09-29David A Perdue , Jrbuy$1K – $15KStock
2017-09-27David A Perdue , Jrbuy$1K – $15KStock
2017-09-26David A Perdue , Jrbuy$1K – $15KStock
2017-09-22David A Perdue , Jrbuy$15K – $50KStock
2017-09-21David A Perdue , Jrbuy$1K – $15KStock
2017-09-14Francis Rooneybuy$1K – $15KStock
2017-09-12David A Perdue , Jrbuy$1K – $15KStock
2017-09-11David A Perdue , Jrbuy$1K – $15KStock
Mikie Sherrillsell
2019-04-18$1K – $15K
Stock
David A Perdue , Jrsell
2019-04-10$15K – $50K
Stock
Nicholas V. Taylorsell
2019-03-25$1K – $15K
Stock
David A Perdue , Jrsell
2019-02-19$15K – $50K
Stock
James M Inhofesell
2019-01-11$100K – $250K
Stock
MICHAEL T. MCCAULbuy
2018-11-30$1K – $15K
Stock
David P. Roesell
2018-11-19$1K – $15K
Stock
Vern Buchananbuy
2018-11-07$1K – $15K
Stock
David A Perdue , Jrsell
2018-10-29$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2018-10-11$1K – $15K
Stock
David A Perdue , Jrsell
2018-10-03$15K – $50K
Stock
David P. Roebuy
2018-09-13$15K – $50K
Stock
FRED UPTONbuy
2018-07-26$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2018-07-19$1K – $15K
Stock
Susan M Collinsbuy
2018-06-04$1K – $15K
Stock
MICHAEL T. MCCAULsell
2018-05-24$50K – $100K
Stock
David P. Roesell
2018-05-22$15K – $50K
Stock
David P. Roesell
2018-05-14$1K – $15K
Stock
MICHAEL T. MCCAULsell
2018-05-02$1K – $15K
Stock
David A Perdue , Jrbuy
2018-04-24$1K – $15K
Stock
MICHAEL T. MCCAULsell
2018-04-23$1K – $15K
Stock
David P. Roebuy
2018-04-03$1K – $15K
Stock
David P. Roebuy
2018-04-03$1K – $15K
Stock
DAVID P. JOYCEsell
2018-03-29$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2018-02-26$1K – $15K
Stock
MICHAEL T. MCCAULsell
2018-02-05$1K – $15K
Stock
David A Perdue , Jrbuy
2018-01-16$100K – $250K
Stock
ALAN S. LOWENTHALsell
2018-01-08$567+
Stock
Shelley M Capitosell
2018-01-04$1K – $15K
Stock
Greg Gianfortesell
2017-12-15$15K – $50K
Stock
David A Perdue , Jrsell
2017-12-13$100K – $250K
Stock
Sheldon Whitehousesell
2017-11-27$15K – $50K
Stock
Virginia Foxxsell
2017-11-21$15K – $50K
Stock
John A. Yarmuthbuy
2017-11-09$1K – $15K
Stock
ALAN S. LOWENTHALsell
2017-11-08$15K – $50K
Stock
David A Perdue , Jrbuy
2017-10-30$1K – $15K
Stock
David A Perdue , Jrbuy
2017-10-27$15K – $50K
Stock
Shelley M Capitosell
2017-10-26$1K – $15K
Stock
David A Perdue , Jrbuy
2017-10-18$1K – $15K
Stock
Virginia Foxxbuy
2017-10-11$1K – $15K
Stock
David A Perdue , Jrbuy
2017-10-05$1K – $15K
Stock
MICHAEL T. MCCAULsell
2017-10-03$1K – $15K
Stock
David A Perdue , Jrbuy
2017-09-29$1K – $15K
Stock
David A Perdue , Jrbuy
2017-09-27$1K – $15K
Stock
David A Perdue , Jrbuy
2017-09-26$1K – $15K
Stock
David A Perdue , Jrbuy
2017-09-22$15K – $50K
Stock
David A Perdue , Jrbuy
2017-09-21$1K – $15K
Stock
Francis Rooneybuy
2017-09-14$1K – $15K
Stock
David A Perdue , Jrbuy
2017-09-12$1K – $15K
Stock
David A Perdue , Jrbuy
2017-09-11$1K – $15K
Stock
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