ABOUT CONGRESSIONAL TRADING IN MCK
As of June 2026, 15 members of Congress have collectively executed 32 disclosed trades on MCK (McKesson Corporation Common
Stock). This includes 15 purchases and 17 sales, with bipartisan cluster activity detected 0 times — instances where members of both parties traded MCK within overlapping time windows, often a signal of coordinated information or policy-related activity.
MOST-ACTIVE TRADERS
The most active trader of MCK on Signal Congress is Markwayne Mullin with 3 trades, followed by Jared Moskowitz (3 trades) and Jonathan Jackson (3 trades).
Signal Congress tracks MCK 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.