ABOUT CONGRESSIONAL TRADING IN MRK
As of May 2026, 25 members of Congress have collectively executed 48 disclosed trades on MRK (Merck & Company, Inc. Common
Stock). This includes 21 purchases and 27 sales, with bipartisan cluster activity detected 0 times — instances where members of both parties traded MRK within overlapping time windows, often a signal of coordinated information or policy-related activity.
MOST-ACTIVE TRADERS
The most active trader of MRK on Signal Congress is Rohit Khanna with 5 trades, followed by Jared Moskowitz (4 trades) and Gilbert Cisneros (3 trades).
Signal Congress tracks MRK congressional trades through STOCK Act PTR filings from the House Clerk XML feed and Senate eFD system. Each trade is scored for conviction (0–100 scale) based on filing speed, amount, and corroboration signals, and analyzed for alpha generation against the SPY benchmark over 60-day and 180-day windows.