Merck & Company Inc Congressional Trading
According to U.S. congressional financial disclosures filed under the STOCK Act, members of Congress have reported 448 trades in Merck & Company Inc (NYSE: MRK) since 2012, across 76 members, worth an estimated $8.9M in disclosed volume (the midpoint of the dollar ranges members report, not exact amounts). 232 buys against 214 sells, a modestly buy-led skew, with Democratic members responsible for 55% of the trades and Republican members 45%. The most recent disclosure shown was filed August 2026, and Rohit Khanna has filed the most MRK transactions among those shown, with 7. Other recent filers include Alan Armstrong, Josh Gottheimer, and Michael T. McCaul. One notable disclosed move was a purchase by Marjorie Taylor Greene on August 28, 2025, up 92.9% since. These figures are drawn from public House and Senate periodic transaction reports and reflect what members were required to disclose, not the current market value of any position. For the full record, including the month-by-month buy and sell timeline, the party breakdown, top buyers and sellers, and every individual filing, see the Merck & Company Inc (MRK) stock overview and the complete trade table below.
Data updated
Price & congressional trade timeline
Party breakdown
Merck & Company congressional trading activity
| Politician | Published | Traded | Filed After | Type | Size | Return | Owner | |
|---|---|---|---|---|---|---|---|---|
 Rohit Khanna House | Aug 7, 2026 | Jul 8, 2026 | 30 days | BUY |  $1,001 - $15,000 | +24.18% | Spouse | |
Rohit Khanna House | Jul 6, 2026 | Jun 16, 2026 | 20 days | BUY | $1,001 - $15,000 | +35.84% | Spouse | |
Rohit Khanna House | Jul 6, 2026 | Jun 2, 2026 | 34 days | BUY | $1,001 - $15,000 | +35.28% | Child | |
Rohit Khanna House | Jun 9, 2026 | May 15, 2026 | 25 days | SELL | $15,001 - $50,000 | +40.47% | Spouse | |
 Alan Armstrong Senate | Jul 21, 2026 | Mar 27, 2026 | 116 days | SELL | $15,001 - $50,000 | +30.78% | Self | |
Rohit Khanna House | Apr 7, 2026 | Mar 10, 2026 | 28 days | BUY | $15,001 - $50,000 | +34.60% | Spouse | |
 Josh Gottheimer House | Mar 16, 2026 | Feb 4, 2026 | 40 days | BUY | $1,001 - $15,000 | +33.19% | Joint | |
Rohit Khanna House | Feb 6, 2026 | Jan 29, 2026 | 8 days | SELL | $15,001 - $50,000 | +45.48% | Spouse | |
 Michael T. McCaul House | Feb 11, 2026 | Jan 13, 2026 | 29 days | SELL | $15,001 - $50,000 | +45.58% | Spouse | |
 Gilbert Cisneros House | Jan 12, 2026 | Dec 19, 2025 | 24 days | BUY | $1,001 - $15,000 | +55.91% | Self |
Merck & Company (MRK) congressional trading FAQ
Can members of Congress legally trade Merck & Company (MRK) stock?
Yes. Members of Congress are permitted to trade individual stocks, including Merck & Company (MRK), but the STOCK Act of 2012 requires them to publicly disclose each transaction within 45 days. Quantellect tracks those disclosures; it does not imply any trade was improper.
Are congressional Merck & Company (MRK) trades public?
Yes. Every congressional trade in Merck & Company (MRK) on this page comes from mandatory public STOCK Act disclosure filings, which are filed with a delay and may be revised.
How many times has Congress traded Merck & Company (MRK)?
Members of Congress have disclosed 448 trades in Merck & Company (MRK) worth $8.9M across 76 members, according to public STOCK Act filings.
Which members of Congress have traded Merck & Company (MRK)?
Recent and active filers of Merck & Company (MRK) disclosures include Rohit Khanna, Michael T. McCaul, Gilbert Cisneros. The full member-by-member trade list is on this page.
Do Democrats or Republicans trade Merck & Company (MRK) more?
Across disclosed Merck & Company (MRK) trades, 55% were by Democrats and 45% by Republicans, led by Democrats (55%).
What is the most recent congressional Merck & Company (MRK) trade?
The most recent disclosed Merck & Company (MRK) trade was a purchase by Rohit Khanna, filed Aug 6, 2026.
Browse all stocks Congress tradesCongressional trading overviewMerck & Company (MRK) stock overview
Not investment advice. Congressional trading data is sourced from public STOCK Act disclosures, which are filed with a delay and may contain errors or be revised. The Tide Score and other figures are generated algorithmically from public filings and market data and describe historical activity, not a recommendation. Always do your own research and consult a licensed financial advisor before making investment decisions.