# MRK: Merck & Co., Inc.

- Industry: Pharmaceutical Preparations
- Current price: $146.87
- Price updated: Sep 19, 2026
- Total congressional trades: 41
- Politicians trading: 18
- Last traded: Aug 24, 2026
- Source: https://tryglasshouse.ai/companies/MRK.md

Merck makes pharmaceutical products to treat several conditions in a number of therapeutic areas, including cardiometabolic disease, cancer, and infections. Within cancer, the firm's immuno-oncology platform, led by Keytruda, is a major contributor to overall sales. The company also has a substantial vaccine business aimed at preventing pediatric diseases, as well as Gardasil for human papillomavirus. Additionally, Merck sells animal health-related drugs. From a geographical perspective, 47% of the company's sales are generated from US human health (pharmaceuticals and vaccines).

# Congressional trading history

- Page: 1 of 1
- Results: 41 of 41
- Pagination query parameter: `page`

## 1. Maria Elvira Salazar

- Member: Republican, House
- Transaction: Buy, $15,001 - $50,000
- Dates: traded Aug 19, 2026, disclosed Sep 9, 2026
- Market context: $152.2 at trade, $146.87 current (-3.50%)
- Politician: https://tryglasshouse.ai/politicians/S000168.md
- Record: https://tryglasshouse.ai/trades/9e85eec2-e13a-470e-8ed8-8b40cad06105.md

## 2. Maria Elvira Salazar

- Member: Republican, House
- Transaction: Buy, $15,001 - $50,000
- Dates: traded Aug 19, 2026, disclosed Sep 9, 2026
- Market context: $152.2 at trade, $146.87 current (-3.50%)
- Politician: https://tryglasshouse.ai/politicians/S000168.md
- Record: https://tryglasshouse.ai/trades/b6149844-5b74-47c5-897d-4200f9b6f2ff.md

## 3. Ro Khanna

- Member: Democrat, House
- Transaction: Buy, $1,001 - $15,000
- Dates: traded Aug 24, 2026, disclosed Sep 4, 2026
- Market context: $150.66 at trade, $146.87 current (-2.52%)
- Politician: https://tryglasshouse.ai/politicians/K000389.md
- Record: https://tryglasshouse.ai/trades/dbfa5664-5017-4d31-8a62-ad165f7ed3cf.md

## 4. Ro Khanna

- Member: Democrat, House
- Transaction: Buy, $15,001 - $50,000
- Dates: traded Aug 7, 2026, disclosed Sep 4, 2026
- Market context: $128.58 at trade, $146.87 current (+14.22%)
- Politician: https://tryglasshouse.ai/politicians/K000389.md
- Record: https://tryglasshouse.ai/trades/62dea2c7-4c9e-4e28-a704-97ad333cbc35.md

## 5. Ro Khanna

- Member: Democrat, House
- Transaction: Buy, $1,001 - $15,000
- Dates: traded Jul 8, 2026, disclosed Aug 7, 2026
- Market context: $125.99 at trade, $146.87 current (+16.57%)
- Politician: https://tryglasshouse.ai/politicians/K000389.md
- Record: https://tryglasshouse.ai/trades/bb8cf9e8-23dc-459f-8647-18846ad79eef.md

## 6. Alan Armstrong

- Member: Republican, Senate
- Transaction: Sell, $15,001 - $50,000
- Dates: traded Mar 27, 2026, disclosed Jul 21, 2026
- Market context: $119.63 at trade, $146.87 current (+22.77%)
- Politician: https://tryglasshouse.ai/politicians/A000383.md
- Record: https://tryglasshouse.ai/trades/d4b2cde3-1d53-4e22-8c41-b80e241dee36.md

## 7. Julie Johnson

- Member: Democrat, House
- Transaction: Sell, $1,001 - $15,000
- Dates: traded Dec 18, 2025, disclosed Jan 15, 2026
- Market context: $100.69 at trade, $146.87 current (+45.86%)
- Politician: https://tryglasshouse.ai/politicians/J000310.md
- Record: https://tryglasshouse.ai/trades/7e99927f-b922-4370-81db-c2b9f272944b.md

## 8. Gilbert Ray Cisneros, Jr.

- Member: Democrat, House
- Transaction: Buy, $1,001 - $15,000
- Dates: traded Dec 19, 2025, disclosed Jan 12, 2026
- Market context: $101.09 at trade, $146.87 current (+45.29%)
- Politician: https://tryglasshouse.ai/politicians/C001123.md
- Record: https://tryglasshouse.ai/trades/667f1604-0343-44c2-934e-1435cd8e78fb.md

## 9. Gilbert Ray Cisneros, Jr.

- Member: Democrat, House
- Transaction: Buy, $1,001 - $15,000
- Dates: traded Nov 18, 2025, disclosed Dec 15, 2025
- Market context: $96.43 at trade, $146.87 current (+52.31%)
- Politician: https://tryglasshouse.ai/politicians/C001123.md
- Record: https://tryglasshouse.ai/trades/559b0863-e351-45c8-b947-a35c1d6cb4d6.md

## 10. Julie Johnson

- Member: Democrat, House
- Transaction: Sell, $1,001 - $15,000
- Dates: traded Nov 13, 2025, disclosed Dec 11, 2025
- Market context: $92.93 at trade, $146.87 current (+58.04%)
- Politician: https://tryglasshouse.ai/politicians/J000310.md
- Record: https://tryglasshouse.ai/trades/0f9190ad-31ef-499e-976d-b367398facd7.md

## 11. Val T. Hoyle

- Member: Democrat, House
- Transaction: Sell, $1,001 - $15,000
- Dates: traded Sep 23, 2025, disclosed Oct 10, 2025
- Market context: $79.96 at trade, $146.87 current (+83.68%)
- Politician: https://tryglasshouse.ai/politicians/H001094.md
- Record: https://tryglasshouse.ai/trades/51af047e-cc2e-4cd0-8f66-080b511f0a68.md

## 12. Sheri Biggs

- Member: Republican, House
- Transaction: Sell, $15,001 - $50,000
- Dates: traded Mar 19, 2025, disclosed Oct 5, 2025
- Market context: $94.02 at trade, $146.87 current (+56.21%)
- Politician: https://tryglasshouse.ai/politicians/B001325.md
- Record: https://tryglasshouse.ai/trades/0983f340-ad12-4e78-b9eb-baaeae558639.md

## 13. Gilbert Ray Cisneros, Jr.

- Member: Democrat, House
- Transaction: Buy, $1,001 - $15,000
- Dates: traded Aug 5, 2025, disclosed Sep 12, 2025
- Market context: $80.79 at trade, $146.87 current (+81.79%)
- Politician: https://tryglasshouse.ai/politicians/C001123.md
- Record: https://tryglasshouse.ai/trades/dde5f18f-bdeb-414b-9847-85e577c1a48d.md

## 14. Lisa C. McClain

- Member: Republican, House
- Transaction: Sell, $1,001 - $15,000
- Dates: traded Aug 4, 2025, disclosed Sep 12, 2025
- Market context: $79.86 at trade, $146.87 current (+83.91%)
- Politician: https://tryglasshouse.ai/politicians/M001136.md
- Record: https://tryglasshouse.ai/trades/d04c2e67-24ea-4efb-a01b-f04619c66e12.md

## 15. Julie Johnson

- Member: Democrat, House
- Transaction: Sell, $1,001 - $15,000
- Dates: traded Aug 14, 2025, disclosed Sep 11, 2025
- Market context: $82.76 at trade, $146.87 current (+77.46%)
- Politician: https://tryglasshouse.ai/politicians/J000310.md
- Record: https://tryglasshouse.ai/trades/924b1392-6d23-444d-8e0b-adbe305eb89d.md

## 16. Marjorie Taylor Greene

- Member: Republican, House
- Transaction: Buy, $1,001 - $15,000
- Dates: traded Aug 28, 2025, disclosed Aug 29, 2025
- Market context: $83.21 at trade, $146.87 current (+76.51%)
- Politician: https://tryglasshouse.ai/politicians/G000596.md
- Record: https://tryglasshouse.ai/trades/f87cebca-ef6c-4bd2-9d7c-3292179c72aa.md

## 17. Ritchie Torres

- Member: Democrat, House
- Transaction: Sell, $1,001 - $15,000
- Dates: traded Jul 11, 2025, disclosed Aug 20, 2025
- Market context: $83.36 at trade, $146.87 current (+76.19%)
- Politician: https://tryglasshouse.ai/politicians/T000486.md
- Record: https://tryglasshouse.ai/trades/d69d420a-e31b-4ba0-aea8-8f9e394635be.md

## 18. Lisa C. McClain

- Member: Republican, House
- Transaction: Buy, $1,001 - $15,000
- Dates: traded Jun 24, 2025, disclosed Aug 13, 2025
- Market context: $80.32 at trade, $146.87 current (+82.86%)
- Politician: https://tryglasshouse.ai/politicians/M001136.md
- Record: https://tryglasshouse.ai/trades/9caed44e-cdc6-4be9-867e-a06d310afcf6.md

## 19. C. Scott Franklin

- Member: Republican, House
- Transaction: Sell, $1,001 - $15,000
- Dates: traded Jun 16, 2025, disclosed Jul 14, 2025
- Market context: $80.96 at trade, $146.87 current (+81.41%)
- Politician: https://tryglasshouse.ai/politicians/F000472.md
- Record: https://tryglasshouse.ai/trades/c45262a5-6332-4480-9bce-bfeb02e4a60d.md

## 20. Julie Johnson

- Member: Democrat, House
- Transaction: Buy, $1,001 - $15,000
- Dates: traded Jun 13, 2025, disclosed Jul 14, 2025
- Market context: $81.71 at trade, $146.87 current (+79.75%)
- Politician: https://tryglasshouse.ai/politicians/J000310.md
- Record: https://tryglasshouse.ai/trades/6f3f6ad1-2e27-46cc-9b59-af4d833842e1.md

## 21. Gilbert Ray Cisneros, Jr.

- Member: Democrat, House
- Transaction: Sell, $1,001 - $15,000
- Dates: traded May 30, 2025, disclosed Jun 6, 2025
- Market context: $76.84 at trade, $146.87 current (+91.14%)
- Politician: https://tryglasshouse.ai/politicians/C001123.md
- Record: https://tryglasshouse.ai/trades/17972a71-46c8-48b8-8065-35cb8cdbaef3.md

## 22. Robert Bresnahan

- Member: Republican, House
- Transaction: Sell, $15,001 - $50,000
- Dates: traded May 15, 2025, disclosed May 31, 2025
- Market context: $74.8 at trade, $146.87 current (+96.35%)
- Politician: https://tryglasshouse.ai/politicians/B001327.md
- Record: https://tryglasshouse.ai/trades/c56c5a14-6d75-4ed6-8d42-5a275f771a58.md

## 23. Bruce Westerman

- Member: Republican, House
- Transaction: Sell, $1,001 - $15,000
- Dates: traded Apr 21, 2025, disclosed May 12, 2025
- Market context: $77.85 at trade, $146.87 current (+88.66%)
- Politician: https://tryglasshouse.ai/politicians/W000821.md
- Record: https://tryglasshouse.ai/trades/21af0d50-dcb6-493a-a0b1-d2b86138f0f1.md

## 24. Jefferson Shreve

- Member: Republican, House
- Transaction: Sell, $15,001 - $50,000
- Dates: traded Apr 17, 2025, disclosed May 8, 2025
- Market context: $78 at trade, $146.87 current (+88.29%)
- Politician: https://tryglasshouse.ai/politicians/S001229.md
- Record: https://tryglasshouse.ai/trades/29a96152-ce87-46a0-ba4f-3999cf7b0409.md

## 25. Robert Bresnahan

- Member: Republican, House
- Transaction: Buy, $15,001 - $50,000
- Dates: traded Apr 8, 2025, disclosed May 8, 2025
- Market context: $78.95 at trade, $146.87 current (+86.03%)
- Politician: https://tryglasshouse.ai/politicians/B001327.md
- Record: https://tryglasshouse.ai/trades/549b9328-95ab-4972-a39a-4d45f3e4558a.md

## 26. Marjorie Taylor Greene

- Member: Republican, House
- Transaction: Buy, $1,001 - $15,000
- Dates: traded May 5, 2025, disclosed May 6, 2025
- Market context: $82.84 at trade, $146.87 current (+77.29%)
- Politician: https://tryglasshouse.ai/politicians/G000596.md
- Record: https://tryglasshouse.ai/trades/8e8f5535-5513-46ed-9c1b-3219659e4aeb.md

## 27. Gilbert Ray Cisneros, Jr.

- Member: Democrat, House
- Transaction: Buy, $1,001 - $15,000
- Dates: traded Apr 29, 2025, disclosed May 6, 2025
- Market context: $84.71 at trade, $146.87 current (+73.38%)
- Politician: https://tryglasshouse.ai/politicians/C001123.md
- Record: https://tryglasshouse.ai/trades/9305c5f0-d9c9-4314-882b-e138db4fbca0.md

## 28. Bruce Westerman

- Member: Republican, House
- Transaction: Buy, $1,001 - $15,000
- Dates: traded Mar 3, 2025, disclosed Apr 16, 2025
- Market context: $93.15 at trade, $146.87 current (+57.67%)
- Politician: https://tryglasshouse.ai/politicians/W000821.md
- Record: https://tryglasshouse.ai/trades/0ce08071-3b8c-4f55-b860-118e425c6fdf.md

## 29. Marjorie Taylor Greene

- Member: Republican, House
- Transaction: Buy, $1,001 - $15,000
- Dates: traded Apr 9, 2025, disclosed Apr 11, 2025
- Market context: $81.91 at trade, $146.87 current (+79.31%)
- Politician: https://tryglasshouse.ai/politicians/G000596.md
- Record: https://tryglasshouse.ai/trades/038562fe-bdb3-4519-a471-77b883bf86c7.md

## 30. Kelly Morrison

- Member: Democrat, House
- Transaction: Sell, $1,001 - $15,000
- Dates: traded Mar 20, 2025, disclosed Apr 11, 2025
- Market context: $94.73 at trade, $146.87 current (+55.04%)
- Politician: https://tryglasshouse.ai/politicians/M001234.md
- Record: https://tryglasshouse.ai/trades/65fa2b45-fc07-433e-92ab-69dd1f06ce98.md

## 31. Gilbert Ray Cisneros, Jr.

- Member: Democrat, House
- Transaction: Sell, $15,001 - $50,000
- Dates: traded Mar 31, 2025, disclosed Apr 7, 2025
- Market context: $89.76 at trade, $146.87 current (+63.63%)
- Politician: https://tryglasshouse.ai/politicians/C001123.md
- Record: https://tryglasshouse.ai/trades/4bd01f0c-90ba-42a9-ace5-c608825a07fd.md

## 32. Robert Bresnahan

- Member: Republican, House
- Transaction: Sell, $15,001 - $50,000
- Dates: traded Feb 25, 2025, disclosed Mar 27, 2025
- Market context: $91.43 at trade, $146.87 current (+60.64%)
- Politician: https://tryglasshouse.ai/politicians/B001327.md
- Record: https://tryglasshouse.ai/trades/9cbbf888-99f4-41d5-a3f7-b1f60f0da2a0.md

## 33. Jefferson Shreve

- Member: Republican, House
- Transaction: Buy, $15,001 - $50,000
- Dates: traded Feb 24, 2025, disclosed Mar 9, 2025
- Market context: $91.27 at trade, $146.87 current (+60.92%)
- Politician: https://tryglasshouse.ai/politicians/S001229.md
- Record: https://tryglasshouse.ai/trades/87c1a465-9e7b-4f7f-88f1-126f282b8cbb.md

## 34. Gilbert Ray Cisneros, Jr.

- Member: Democrat, House
- Transaction: Buy, $15,001 - $50,000
- Dates: traded Feb 26, 2025, disclosed Mar 6, 2025
- Market context: $89.38 at trade, $146.87 current (+64.32%)
- Politician: https://tryglasshouse.ai/politicians/C001123.md
- Record: https://tryglasshouse.ai/trades/f4908149-77c0-4b93-9b9a-ffda748f4679.md

## 35. Julie Johnson

- Member: Democrat, House
- Transaction: Buy, $1,001 - $15,000
- Dates: traded Jan 17, 2025, disclosed Feb 12, 2025
- Market context: $97.92 at trade, $146.87 current (+49.99%)
- Politician: https://tryglasshouse.ai/politicians/J000310.md
- Record: https://tryglasshouse.ai/trades/98b7d71c-f9ab-4b7f-b4a5-2aa3d6c71ebc.md

## 36. Gilbert Ray Cisneros, Jr.

- Member: Democrat, House
- Transaction: Sell, $1,001 - $15,000
- Dates: traded Jan 24, 2025, disclosed Feb 11, 2025
- Market context: $95.55 at trade, $146.87 current (+53.71%)
- Politician: https://tryglasshouse.ai/politicians/C001123.md
- Record: https://tryglasshouse.ai/trades/7e507135-3d04-40c2-b382-7f2d9a872987.md

## 37. Josh Gottheimer

- Member: Democrat, House
- Transaction: Sell, $15,001 - $50,000
- Dates: traded Jan 27, 2025, disclosed Feb 10, 2025
- Market context: $97.94 at trade, $146.87 current (+49.96%)
- Politician: https://tryglasshouse.ai/politicians/G000583.md
- Record: https://tryglasshouse.ai/trades/ee5dc1d4-8d0d-47a8-b20f-91e9c01aa99c.md

## 38. Byron Donalds

- Member: Republican, House
- Transaction: Sell, $1,001 - $15,000
- Dates: traded Jan 16, 2025, disclosed Feb 10, 2025
- Market context: $100.7 at trade, $146.87 current (+45.85%)
- Politician: https://tryglasshouse.ai/politicians/D000032.md
- Record: https://tryglasshouse.ai/trades/ef6481de-90ce-473c-8c63-a002cda24c32.md

## 39. Byron Donalds

- Member: Republican, House
- Transaction: Sell, $1,001 - $15,000
- Dates: traded Jan 16, 2025, disclosed Feb 10, 2025
- Market context: $100.7 at trade, $146.87 current (+45.85%)
- Politician: https://tryglasshouse.ai/politicians/D000032.md
- Record: https://tryglasshouse.ai/trades/f3e73253-e24e-4b39-98e5-84d31d9fe7e3.md

## 40. Jared Moskowitz

- Member: Democrat, House
- Transaction: Sell, $1,001 - $15,000
- Dates: traded Jan 15, 2025, disclosed Feb 10, 2025
- Market context: $100.09 at trade, $146.87 current (+46.74%)
- Politician: https://tryglasshouse.ai/politicians/M001217.md
- Record: https://tryglasshouse.ai/trades/0ec10992-e778-4bb7-8cf0-fbd2ec862fbc.md

## 41. Jared Moskowitz

- Member: Democrat, House
- Transaction: Sell, $1,001 - $15,000
- Dates: traded Jan 15, 2025, disclosed Feb 10, 2025
- Market context: $100.09 at trade, $146.87 current (+46.74%)
- Politician: https://tryglasshouse.ai/politicians/M001217.md
- Record: https://tryglasshouse.ai/trades/d8f80b29-dfc6-477e-841f-6e384a645681.md



Prices and percentage changes are market context, not portfolio returns. This information is not financial advice.