ABOUT CONGRESSIONAL TRADING IN MLM
As of May 2026, 6 members of Congress have collectively executed 9 disclosed trades on MLM (Martin Marietta Materials, Inc.
Common Stock). This includes 4 purchases and 5 sales, with bipartisan cluster activity detected 0 times — instances where members of both parties traded MLM within overlapping time windows, often a signal of coordinated information or policy-related activity.
MOST-ACTIVE TRADERS
The most active trader of MLM on Signal Congress is April McClain Delaney with 3 trades, followed by Rohit Khanna (2 trades) and Josh Gottheimer (1 trade).
Signal Congress tracks MLM 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.