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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 25 purchases versus 25 sales. All data is sourced from STOCK Act periodic transaction reports filed with Congress.

Total Disclosures
50
Unique Politicians
17
Buys
25
Sells
25

Who in Congress Is Trading MRK?

DatePoliticianTypeAmountSecurity
2023-05-23MICHAEL T. MCCAULbuy$15K – $50KStock
2023-05-22Rohit Khannasell$1K – $15KStock

Related

All stocks traded by CongressFull trade feedMost active tradersAbout the STOCK ActReport missing trade
2023-05-19Rohit Khannabuy$1K – $15KStock
2023-04-10Daniel Goldmanbuy$1K – $15KStock
2023-04-03Rohit Khannabuy$1K – $15KStock
2023-03-31MICHAEL T. MCCAULsell$50K – $100KStock
2023-03-10MICHAEL T. MCCAULsell$15K – $50KStock
2023-03-06Daniel Goldmansell$15K – $50KStock
2023-03-01Diana Harshbargerbuy$1K – $15KStock
2023-02-24Jared Moskowitzbuy$1K – $15KStock
2023-01-31Daniel Goldmanbuy$1K – $15KStock
2023-01-17Rohit Khannasell$1K – $15KStock
2023-01-16MICHAEL T. MCCAULsell$15K – $50KStock
2023-01-11Josh Gottheimersell$1K – $15KStock
2023-01-09Rohit Khannasell$1K – $15KStock
2022-12-21MICHAEL T. MCCAULsell$15K – $50KStock
2022-12-15MICHAEL T. MCCAULsell$1K – $15KStock
2022-12-06Rohit Khannasell$1K – $15KStock
2022-11-02Rohit Khannabuy$1K – $15KStock
2022-10-17Thomas Suozzisell$15K – $50KStock
2022-09-12Kathy Manningbuy$1K – $15KStock
2022-09-09MICHAEL T. MCCAULbuy$50K – $100KStock
2022-09-06Rohit Khannabuy$1K – $15KStock
2022-08-12Byron Donaldsbuy$1K – $15KStock
2022-08-05Kathy Manningsell$1K – $15KStock
2022-08-02MICHAEL T. MCCAULsell$50K – $100KStock
2022-07-29Rohit Khannabuy$1K – $15KStock
2022-07-15Kathy Manningbuy$1K – $15KStock
2022-07-07RICK LARSENbuy$1K – $15KStock
2022-06-06Rohit Khannabuy$1K – $15KStock
2022-06-03Diana Harshbargersell$1K – $15KStock
2022-06-01Lois Frankelsell$1K – $15KStock
2022-05-31Rohit Khannasell$1K – $15KStock
2022-04-13MICHAEL T. MCCAULsell$1K – $15KStock
2022-03-30Thomas H Tubervillebuy$1K – $15KStock
2022-03-16John Rutherfordsell$1K – $15KStock
2022-02-28ROBERT J. WITTMANsell$1K – $15KStock
2022-02-14MICHAEL T. MCCAULbuy$1K – $15KStock
2022-01-04MICHAEL T. MCCAULsell$1K – $15KStock
2022-01-04MICHAEL T. MCCAULbuy$15K – $50KStock
2021-12-27MICHAEL T. MCCAULsell$15K – $50KStock
2021-12-05Vern Buchananbuy$1K – $15KStock
2021-12-03Lois Frankelbuy$1K – $15KStock
2021-11-30MICHAEL T. MCCAULbuy$1K – $15KStock
2021-11-29Rohit Khannabuy$15K – $50KStock
2021-11-26BOB GIBBSbuy$1K – $15KStock
2021-11-10MICHAEL T. MCCAULsell$1K – $15KStock
2021-10-25Diana Harshbargerbuy$1K – $15KStock
2021-10-06Gus M. Bilirakissell$1K – $15KStock
2021-10-05Diana Harshbargersell$1K – $15KStock
MICHAEL T. MCCAULbuy
2023-05-23$15K – $50K
Stock
Rohit Khannasell
2023-05-22$1K – $15K
Stock
Rohit Khannabuy
2023-05-19$1K – $15K
Stock
Daniel Goldmanbuy
2023-04-10$1K – $15K
Stock
Rohit Khannabuy
2023-04-03$1K – $15K
Stock
MICHAEL T. MCCAULsell
2023-03-31$50K – $100K
Stock
MICHAEL T. MCCAULsell
2023-03-10$15K – $50K
Stock
Daniel Goldmansell
2023-03-06$15K – $50K
Stock
Diana Harshbargerbuy
2023-03-01$1K – $15K
Stock
Jared Moskowitzbuy
2023-02-24$1K – $15K
Stock
Daniel Goldmanbuy
2023-01-31$1K – $15K
Stock
Rohit Khannasell
2023-01-17$1K – $15K
Stock
MICHAEL T. MCCAULsell
2023-01-16$15K – $50K
Stock
Josh Gottheimersell
2023-01-11$1K – $15K
Stock
Rohit Khannasell
2023-01-09$1K – $15K
Stock
MICHAEL T. MCCAULsell
2022-12-21$15K – $50K
Stock
MICHAEL T. MCCAULsell
2022-12-15$1K – $15K
Stock
Rohit Khannasell
2022-12-06$1K – $15K
Stock
Rohit Khannabuy
2022-11-02$1K – $15K
Stock
Thomas Suozzisell
2022-10-17$15K – $50K
Stock
Kathy Manningbuy
2022-09-12$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2022-09-09$50K – $100K
Stock
Rohit Khannabuy
2022-09-06$1K – $15K
Stock
Byron Donaldsbuy
2022-08-12$1K – $15K
Stock
Kathy Manningsell
2022-08-05$1K – $15K
Stock
MICHAEL T. MCCAULsell
2022-08-02$50K – $100K
Stock
Rohit Khannabuy
2022-07-29$1K – $15K
Stock
Kathy Manningbuy
2022-07-15$1K – $15K
Stock
RICK LARSENbuy
2022-07-07$1K – $15K
Stock
Rohit Khannabuy
2022-06-06$1K – $15K
Stock
Diana Harshbargersell
2022-06-03$1K – $15K
Stock
Lois Frankelsell
2022-06-01$1K – $15K
Stock
Rohit Khannasell
2022-05-31$1K – $15K
Stock
MICHAEL T. MCCAULsell
2022-04-13$1K – $15K
Stock
Thomas H Tubervillebuy
2022-03-30$1K – $15K
Stock
John Rutherfordsell
2022-03-16$1K – $15K
Stock
ROBERT J. WITTMANsell
2022-02-28$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2022-02-14$1K – $15K
Stock
MICHAEL T. MCCAULsell
2022-01-04$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2022-01-04$15K – $50K
Stock
MICHAEL T. MCCAULsell
2021-12-27$15K – $50K
Stock
Vern Buchananbuy
2021-12-05$1K – $15K
Stock
Lois Frankelbuy
2021-12-03$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2021-11-30$1K – $15K
Stock
Rohit Khannabuy
2021-11-29$15K – $50K
Stock
BOB GIBBSbuy
2021-11-26$1K – $15K
Stock
MICHAEL T. MCCAULsell
2021-11-10$1K – $15K
Stock
Diana Harshbargerbuy
2021-10-25$1K – $15K
Stock
Gus M. Bilirakissell
2021-10-06$1K – $15K
Stock
Diana Harshbargersell
2021-10-05$1K – $15K
Stock
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