MRKCongressional Stock Trades
Merck & Co., Inc.
Pharmaceutical Preparations
Congressional stock trades in Merck & Co., Inc. (MRK) from House and Senate STOCK Act filings. See which members of Congress bought or sold, disclosed amounts, and filing dates.
Total Trades
42
Politicians Trading
18
Last Traded
Sep 24, 2026
Trading History
| Politician | Notified | Traded | Type | Amount | Change |
|---|---|---|---|---|---|
| Maria Elvira SalazarR | Oct 7, 2026 | Sep 24, 2026 | Sell | $1,001 - $15,000 | -2.24% |
| Maria Elvira SalazarR | Sep 9, 2026 | Aug 19, 2026 | Buy | $15,001 - $50,000 | -4.95% |
| Maria Elvira SalazarR | Sep 9, 2026 | Aug 19, 2026 | Buy | $15,001 - $50,000 | -4.95% |
| Ro KhannaD | Sep 4, 2026 | Aug 24, 2026 | Buy | $1,001 - $15,000 | -3.98% |
| Ro KhannaD | Sep 4, 2026 | Aug 7, 2026 | Buy | $15,001 - $50,000 | +12.51% |
| Ro KhannaD | Aug 7, 2026 | Jul 8, 2026 | Buy | $1,001 - $15,000 | +14.83% |
| Alan ArmstrongR | Jul 21, 2026 | Mar 27, 2026 | Sell | $15,001 - $50,000 | +20.93% |
| Julie JohnsonD | Jan 15, 2026 | Dec 18, 2025 | Sell | $1,001 - $15,000 | +43.68% |
| Gilbert Ray Cisneros, Jr.D | Jan 12, 2026 | Dec 19, 2025 | Buy | $1,001 - $15,000 | +43.11% |
| Gilbert Ray Cisneros, Jr.D | Dec 15, 2025 | Nov 18, 2025 | Buy | $1,001 - $15,000 | +50.03% |
| Julie JohnsonD | Dec 11, 2025 | Nov 13, 2025 | Sell | $1,001 - $15,000 | +55.68% |
| Val T. HoyleD | Oct 10, 2025 | Sep 23, 2025 | Sell | $1,001 - $15,000 | +80.93% |
| Sheri BiggsR | Oct 5, 2025 | Mar 19, 2025 | Sell | $15,001 - $50,000 | +53.87% |
| Gilbert Ray Cisneros, Jr.D | Sep 12, 2025 | Aug 5, 2025 | Buy | $1,001 - $15,000 | +79.07% |
| Lisa C. McClainR | Sep 12, 2025 | Aug 4, 2025 | Sell | $1,001 - $15,000 | +81.15% |
| Julie JohnsonD | Sep 11, 2025 | Aug 14, 2025 | Sell | $1,001 - $15,000 | +74.81% |
| Marjorie Taylor GreeneR | Aug 29, 2025 | Aug 28, 2025 | Buy | $1,001 - $15,000 | +73.86% |
| Ritchie TorresD | Aug 20, 2025 | Jul 11, 2025 | Sell | $1,001 - $15,000 | +73.55% |
| Lisa C. McClainR | Aug 13, 2025 | Jun 24, 2025 | Buy | $1,001 - $15,000 | +80.12% |
| Scott FranklinR | Jul 14, 2025 | Jun 16, 2025 | Sell | $1,001 - $15,000 | +78.69% |
| Julie JohnsonD | Jul 14, 2025 | Jun 13, 2025 | Buy | $1,001 - $15,000 | +77.05% |
| Gilbert Ray Cisneros, Jr.D | Jun 6, 2025 | May 30, 2025 | Sell | $1,001 - $15,000 | +88.27% |
| Robert BresnahanR | May 31, 2025 | May 15, 2025 | Sell | $15,001 - $50,000 | +93.41% |
| Bruce WestermanR | May 12, 2025 | Apr 21, 2025 | Sell | $1,001 - $15,000 | +85.83% |
| Jefferson ShreveR | May 8, 2025 | Apr 17, 2025 | Sell | $15,001 - $50,000 | +85.47% |
| Robert BresnahanR | May 8, 2025 | Apr 8, 2025 | Buy | $15,001 - $50,000 | +83.24% |
| Marjorie Taylor GreeneR | May 6, 2025 | May 5, 2025 | Buy | $1,001 - $15,000 | +74.64% |
| Gilbert Ray Cisneros, Jr.D | May 6, 2025 | Apr 29, 2025 | Buy | $1,001 - $15,000 | +70.78% |
| Bruce WestermanR | Apr 16, 2025 | Mar 3, 2025 | Buy | $1,001 - $15,000 | +55.31% |
| Marjorie Taylor GreeneR | Apr 11, 2025 | Apr 9, 2025 | Buy | $1,001 - $15,000 | +76.62% |
| Kelly MorrisonD | Apr 11, 2025 | Mar 20, 2025 | Sell | $1,001 - $15,000 | +52.72% |
| Gilbert Ray Cisneros, Jr.D | Apr 7, 2025 | Mar 31, 2025 | Sell | $15,001 - $50,000 | +61.17% |
| Robert BresnahanR | Mar 27, 2025 | Feb 25, 2025 | Sell | $15,001 - $50,000 | +58.23% |
| Jefferson ShreveR | Mar 9, 2025 | Feb 24, 2025 | Buy | $15,001 - $50,000 | +58.51% |
| Gilbert Ray Cisneros, Jr.D | Mar 6, 2025 | Feb 26, 2025 | Buy | $15,001 - $50,000 | +61.86% |
| Julie JohnsonD | Feb 12, 2025 | Jan 17, 2025 | Buy | $1,001 - $15,000 | +47.74% |
| Gilbert Ray Cisneros, Jr.D | Feb 11, 2025 | Jan 24, 2025 | Sell | $1,001 - $15,000 | +51.41% |
| Josh GottheimerD | Feb 10, 2025 | Jan 27, 2025 | Sell | $15,001 - $50,000 | +47.71% |
| Byron DonaldsR | Feb 10, 2025 | Jan 16, 2025 | Sell | $1,001 - $15,000 | +43.66% |
| Byron DonaldsR | Feb 10, 2025 | Jan 16, 2025 | Sell | $1,001 - $15,000 | +43.66% |
| Jared MoskowitzD | Feb 10, 2025 | Jan 15, 2025 | Sell | $1,001 - $15,000 | +44.54% |
| Jared MoskowitzD | Feb 10, 2025 | Jan 15, 2025 | Sell | $1,001 - $15,000 | +44.54% |
Price History
About Merck & Co., Inc.
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).
18 members of Congress have disclosed 42 trades in Merck & Co., Inc. (MRK). Most active: Gilbert Ray Cisneros, Jr. (8), Julie Johnson (5), Maria Elvira Salazar (3).
Across all disclosures, members of Congress reported 19 purchases and 23 sales of Merck & Co., Inc. (MRK). The most recent trade was on Sep 24, 2026.
Ro Khanna disclosed buying Merck & Co., Inc. (MRK) on Aug 24, 2026, valued at $1,001 - $15,000.
Maria Elvira Salazar disclosed selling Merck & Co., Inc. (MRK) on Sep 24, 2026, valued at $1,001 - $15,000.
From House and Senate periodic transaction reports filed under the STOCK Act. Members of Congress must disclose trades within 45 days, and amounts are reported as ranges, not exact values.