61 members of Congress have disclosed 452 trades in Merck & Co., Inc. (MRK) since 2014: 228 purchases worth about $4.35M and 224 sales worth about $5.96M. The most active was Michael T. McCaul, with 59 trades. The latest trade was made on Sep 24, 2026.
MRK’s price and SPY’s, both as the change since the start of the range. A green triangle marks a day members bought MRK, a red one a day they sold; hover for who and how much.
| # | Member | Trades | Buys | Sells | Bought (est.) | Sold (est.) | Net | Buys vs SPY | First Traded | Last Traded |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Michael T. McCaulR-TX | 59 | 20 | 39 | $1.31M | $2.38M | -$1.07M | -14.1% | Jul 14, 2014 | Aug 28, 2026 |
| 2 | Ro KhannaD-CA | 176 | 100 | 76 | $1.56M | $1.71M | -$148.49K | -15.0% | Jan 24, 2017 | Sep 4, 2026 |
| 3 | Maria Elvira SalazarR-FL | 3 | 2 | 1 | $65.00K | $8.00K | +$57.00K | -0.2% | Aug 19, 2026 | Sep 24, 2026 |
| 4 | Keith SelfR-TX | 1 | 0 | 1 | $0.00 | $8.00K | -$8.00K | – | Jun 10, 2023 | Jun 10, 2023 |
| 5 | Josh GottheimerD-NJ | 4 | 1 | 3 | $8.00K | $48.50K | -$40.50K | +15.9% | Jan 11, 2023 | Feb 4, 2026 |
| 6 | Julie JohnsonD-TX | 5 | 2 | 3 | $16.00K | $24.00K | -$8.00K | +40.8% | Jan 17, 2025 | Dec 18, 2025 |
| 7 | Gilbert Ray Cisneros, Jr.D-CA | 8 | 5 | 3 | $64.50K | $48.50K | +$16.00K | +43.9% | Jan 24, 2025 | Dec 19, 2025 |
| 8 | Val T. HoyleD-OR | 2 | 1 | 1 | $8.00K | $8.00K | $0.00 | +13.9% | Oct 29, 2024 | Sep 23, 2025 |
| 9 | Sheri BiggsR-SC | 1 | 0 | 1 | $0.00 | $32.50K | -$32.50K | – | Mar 19, 2025 | Mar 19, 2025 |
| 10 | Lisa C. McClainR-MI | 2 | 1 | 1 | $8.00K | $8.00K | $0.00 | +60.9% | Jun 24, 2025 | Aug 4, 2025 |
| 11 | Marjorie Taylor GreeneR-GA | 3 | 3 | 0 | $24.00K | $0.00 | +$24.00K | +50.8% | Apr 9, 2025 | Aug 28, 2025 |
| 12 | Ritchie TorresD-NY | 2 | 1 | 1 | $8.00K | $8.00K | $0.00 | -0.1% | Sep 26, 2024 | Jul 11, 2025 |
| 13 | Scott FranklinR-FL | 4 | 2 | 2 | $16.00K | $40.50K | -$24.50K | -12.6% | Sep 11, 2023 | Jun 16, 2025 |
| 14 | Robert P. Bresnahan, Jr.R-PA | 3 | 1 | 2 | $32.50K | $65.00K | -$32.50K | +36.6% | Feb 25, 2025 | May 15, 2025 |
| 15 | Bruce WestermanR-AR | 2 | 1 | 1 | $8.00K | $8.00K | $0.00 | +30.6% | Mar 3, 2025 | Apr 21, 2025 |
| Owner | Type | Filing | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Michael T. McCaulR-TX | MRKMERCK &CO INC | Spouse | Sell | $50K–$100K | Aug 28, 2026 | Oct 14, 2026 | 47d late | +0.1% | +2.3% | |
| Maria Elvira SalazarR-FL | MRKMerck & Company, Inc. Common Stock | Self | Sell (Partial) | $1K–$15K | Sep 24, 2026 | Oct 7, 2026 | 13d | +0.3% | +2.3% | |
| Ro KhannaD-CA | MRKMERCK & CO INC. CMN | Spouse | Sell (Partial) | $1K–$15K | Sep 4, 2026 | Oct 7, 2026 | 33d | -1.2% | +1.1% | |
| Maria Elvira SalazarR-FL | MRKMerck & Company, Inc. Common Stock | Self | Buy | $15K–$50K | Aug 19, 2026 | Sep 9, 2026 | 21d | -2.4% | -0.2% | |
| Maria Elvira SalazarR-FL | MRKMerck & Company, Inc. Common Stock | Self | Buy | $15K–$50K | Aug 19, 2026 | Sep 9, 2026 | 21d | -2.4% | -0.2% | |
| Ro KhannaD-CA | MRKMERCK& CO INC. CMN | Spouse | Sell (Partial) | $1K–$15K | Aug 3, 2026 | Sep 4, 2026 | 32d | +16.2% | +16.9% | |
| Ro KhannaD-CA | MRKMERCK & CO INC. CMN | Dependent Child | Buy | $15K–$50K | Aug 7, 2026 | Sep 4, 2026 | 28d | +15.5% | +18.2% | |
| Ro KhannaD-CA | MRKMERCK & CO INC. CMN | Spouse | Buy | $1K–$15K | Aug 24, 2026 | Sep 4, 2026 | 11d | -1.4% | +0.0% | |
| Ro KhannaD-CA | MRKMERCK & CO INC. CMN | Spouse | Buy | $1K–$15K | Jul 8, 2026 | Aug 7, 2026 | 30d | +17.9% | +17.0% | |
| Ro KhannaD-CA | MRKMERCK & CO., INC. CMN | Dependent Child | Buy | $1K–$15K | Jun 2, 2026 | Jul 6, 2026 | 34d | +28.4% | +29.4% | |
| Ro KhannaD-CA | MRKMERCK& CO., INC. CMN | Spouse | Buy | $1K–$15K | Jun 16, 2026 | Jul 6, 2026 | 20d | +28.9% | +28.7% | |
| Keith SelfR-TX | MRKMerck +Co, InC | Spouse | Sell | $1K–$15K | Jun 10, 2023 | Jun 30, 2026 | 1,116d late | +34.1% | -40.8% | |
| Ro KhannaD-CA | MRKMERCK & CO., INC. CMN | Spouse | Sell | $15K–$50K | May 15, 2026 | Jun 9, 2026 | 25d | +33.3% | +31.6% | |
| Josh GottheimerD-NJ | MRKMerck & Company, Inc. Common Stock | Joint | Buy | $1K–$15K | Feb 4, 2026 | Mar 16, 2026 | 40d | +25.5% | +15.9% | |
| Michael T. McCaulR-TX | MRKMERCK & CO INC | Spouse | Sell | $15K–$50K | Jan 13, 2026 | Feb 11, 2026 | 29d | +37.2% | +28.7% |
Tip. Hover a row for the filing’s full asset text and comments; the PDF link opens the report itself.
61 members of Congress have disclosed 452 trades in Merck & Co., Inc. (MRK) since 2014: 228 purchases worth about $4.35M and 224 sales worth about $5.96M. The most active was Michael T. McCaul, with 59 trades. The latest trade was made on Sep 24, 2026. Most active: Michael T. McCaul (59), Ro Khanna (176), Maria Elvira Salazar (3), Keith Self (1), Josh Gottheimer (4).
Since 2014 they have disclosed 228 purchases and 224 sales; by the midpoints of the disclosed ranges, about $4.35M bought and $5.96M sold, a net sale of $1.61M.
Members of Congress report each trade over $1,000 within 45 days under the STOCK Act, with the amount as a range. The chart marks the days members traded MRK on its price, against the S&P 500 over the same days.
Members of Congress disclose trades as dollar ranges, up to 45 days after the trade and sometimes later. Volumes use the midpoints of those ranges and are estimates; portfolio figures are a model built from the disclosed trades, not the members’ actual accounts. Not investment advice.