MRK
Merck & Co., Inc.Pharmaceutical Preparations
$146.87updated Sep 19, 2026
Congressional trading profile for Merck & Co., Inc. (MRK), covering 41 disclosed transactions by 18 lawmakers.
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).
Total Trades
41
Politicians Trading
18
Last Traded
Aug 24, 2026
Price history
Congressional Trades
| Politician | Notified | Traded | Type | Amount | Change |
|---|---|---|---|---|---|
| Maria Elvira SalazarR | Sep 9, 2026 | Aug 19, 2026 | Buy | $15,001 - $50,000 | -3.50% |
| Maria Elvira SalazarR | Sep 9, 2026 | Aug 19, 2026 | Buy | $15,001 - $50,000 | -3.50% |
| Alan ArmstrongR | Jul 21, 2026 | Mar 27, 2026 | Sell | $15,001 - $50,000 | +22.77% |
| Sheri BiggsR | Oct 5, 2025 | Mar 19, 2025 | Sell | $15,001 - $50,000 | +56.21% |
| Lisa C. McClainR | Sep 12, 2025 | Aug 4, 2025 | Sell | $1,001 - $15,000 | +83.91% |
| Marjorie Taylor GreeneR | Aug 29, 2025 | Aug 28, 2025 | Buy | $1,001 - $15,000 | +76.51% |
| Lisa C. McClainR | Aug 13, 2025 | Jun 24, 2025 | Buy | $1,001 - $15,000 | +82.86% |
| Scott FranklinR | Jul 14, 2025 | Jun 16, 2025 | Sell | $1,001 - $15,000 | +81.41% |
| Robert BresnahanR | May 31, 2025 | May 15, 2025 | Sell | $15,001 - $50,000 | +96.35% |
| Bruce WestermanR | May 12, 2025 | Apr 21, 2025 | Sell | $1,001 - $15,000 | +88.66% |
| Jefferson ShreveR | May 8, 2025 | Apr 17, 2025 | Sell | $15,001 - $50,000 | +88.29% |
| Robert BresnahanR | May 8, 2025 | Apr 8, 2025 | Buy | $15,001 - $50,000 | +86.03% |
| Marjorie Taylor GreeneR | May 6, 2025 | May 5, 2025 | Buy | $1,001 - $15,000 | +77.29% |
| Bruce WestermanR | Apr 16, 2025 | Mar 3, 2025 | Buy | $1,001 - $15,000 | +57.67% |
| Marjorie Taylor GreeneR | Apr 11, 2025 | Apr 9, 2025 | Buy | $1,001 - $15,000 | +79.31% |
| Robert BresnahanR | Mar 27, 2025 | Feb 25, 2025 | Sell | $15,001 - $50,000 | +60.64% |
| Jefferson ShreveR | Mar 9, 2025 | Feb 24, 2025 | Buy | $15,001 - $50,000 | +60.92% |
| Byron DonaldsR | Feb 10, 2025 | Jan 16, 2025 | Sell | $1,001 - $15,000 | +45.85% |
| Byron DonaldsR | Feb 10, 2025 | Jan 16, 2025 | Sell | $1,001 - $15,000 | +45.85% |