MRK Congressional Trades
37 trades by 13 members of Congress (May 2015 – Aug 2026)
Last updated September 12, 2026
Congress members who trade MRK
Recent MRK trades
| Date | Politician | Action | Amount | Alpha |
|---|---|---|---|---|
| 2026-08-19 | Maria Elvira Salazar | BUY | $15K-$50K | -4.81% |
| 2026-02-04 | Josh Gottheimer | BUY | $1K-$15K | +36.22% |
| 2025-12-19 | Gilbert Cisneros | BUY | $1K-$15K | +5.19% |
| 2025-11-18 | Gilbert Cisneros | BUY | $1K-$15K | +8.34% |
| 2025-08-05 | Gilbert Cisneros | BUY | $1K-$15K | +1.25% |
| 2025-08-04 | Lisa Mcclain | SELL | $1K-$15K | — |
| 2025-06-24 | Lisa Mcclain | BUY | $1K-$15K | -4.59% |
| 2025-06-16 | Scott Scott Franklin | SELL | $1K-$15K | — |
| 2025-05-30 | Gilbert Cisneros | SELL | $1K-$15K | — |
| 2025-04-29 | Gilbert Cisneros | BUY | $1K-$15K | +32.03% |
| 2025-03-31 | Gilbert Cisneros | SELL | $15K-$50K | — |
| 2025-03-20 | Kelly Louise Morrison | SELL | $1K-$15K | — |
| 2025-02-26 | Gilbert Cisneros | BUY | $15K-$50K | +32.48% |
| 2025-01-27 | Josh Gottheimer | SELL | $15K-$50K | — |
| 2025-01-24 | Gilbert Cisneros | SELL | $1K-$15K | — |
| 2025-01-16 | Byron Donalds | SELL | $1K-$15K | — |
| 2025-01-15 | Jared Moskowitz | SELL | $1K-$15K | — |
| 2024-11-08 | Jared Moskowitz | BUY | $1K-$15K | -1.85% |
| 2024-09-24 | Jonathan Jackson | SELL | $15K-$50K | — |
| 2024-08-07 | Scott Scott Franklin | BUY | $1K-$15K | -44.23% |
| 2024-06-21 | Josh Gottheimer | SELL | $1K-$15K | — |
| 2023-12-28 | Jared Moskowitz | BUY | $1K-$15K | -21.10% |
| 2023-09-01 | Jared Moskowitz | BUY | $1K-$15K | -31.53% |
| 2023-07-14 | Jared Moskowitz | BUY | $1K-$15K | -29.04% |
| 2023-02-24 | Jared Moskowitz | BUY | $1K-$15K | — |
| 2023-01-11 | Josh Gottheimer | SELL | $1K-$15K | — |
| 2022-08-12 | Byron Donalds | SELL | $1K-$15K | — |
| 2019-11-18 | Thomas Suozzi | SELL | $15K-$50K | — |
| 2019-10-17 | Thomas Suozzi | SELL | $15K-$50K | — |
| 2017-11-21 | Virginia Foxx | SELL | $15K-$50K | — |
Showing 30 of 37 trades
Frequently Asked Questions
Which Congress members trade MRK?
13 members of Congress have traded MRK. Top traders include: Maria Elvira Salazar, Sheldon Whitehouse, Jonathan Jackson, Shelley Moore Capito, Kelly Louise Morrison. See the full list below.
Is Congress buying or selling MRK?
Congress has made 21 purchases and 16 sales of MRK. The buy/sell ratio is 1.3x.
Do Congress MRK trades beat the market?
Congressional trades in MRK have a 44% win rate against the S&P 500, with an average alpha of -7.0%.
How is alpha calculated?
Alpha measures how much a trade outperformed the S&P 500 over the same holding period. For each politician, we show their dollar-weighted alpha—larger positions count more. A politician with +404% alpha on NVDA means their NVDA trades, weighted by size, beat the market by 404 percentage points.
What does the win rate mean?
Win rate is the percentage of trades that beat the S&P 500. Note that win rate treats all trades equally—a $5K trade counts the same as a $5M trade. This is why some traders show high alpha but moderate win rates (big wins, small losses) or low alpha but high win rates (consistent small wins).