Martin Marietta Materials Inc Congressional Trading
According to U.S. congressional financial disclosures filed under the STOCK Act, members of Congress have reported 74 trades in Martin Marietta Materials Inc (NYSE: MLM) since 2014, across 10 members, worth an estimated $1M in disclosed volume (the midpoint of the dollar ranges members report, not exact amounts). 44 buys against 30 sells, a modestly buy-led skew, with Democratic members responsible for 84% of the trades and Republican members 16%. The most recent disclosure shown was filed May 2026, and Ro Khanna has filed the most MLM transactions among those shown, with 8. Other recent filers include Josh Gottheimer, April Mcclain Delaney, and Michael T. McCaul. One notable disclosed move was a sale by Michael T. McCaul on February 23, 2026, down 14.5% 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 Martin Marietta Materials Inc (MLM) stock overview and the complete trade table below.
Data updated
Price & congressional trade timeline
Party breakdown
Martin Marietta Materials congressional trading activity
| Politician | Published | Traded | Filed After | Type | Size | Return | |
|---|---|---|---|---|---|---|---|
 Josh Gottheimer House | May 19, 2026 | Apr 9, 2026 | 40 days | SELL |  $15,001 - $50,000 | -6.64% | |
 Ro Khanna House | Apr 7, 2026 | Mar 30, 2026 | 8 days | BUY | $1,001 - $15,000 | +1.82% | |
Ro Khanna House | Apr 7, 2026 | Mar 23, 2026 | 15 days | SELL | $1,001 - $15,000 | +1.11% | |
| Apr 6, 2026 | Mar 9, 2026 | 28 days | BUY | $1,001 - $15,000 | -4.66% | ||
| Apr 6, 2026 | Mar 9, 2026 | 28 days | BUY | $1,001 - $15,000 | -4.66% | ||
 Michael T. McCaul House | Mar 10, 2026 | Feb 23, 2026 | 15 days | SELL | $1,001 - $15,000 | -14.47% | |
Michael T. McCaul House | Mar 10, 2026 | Feb 17, 2026 | 21 days | SELL | $1,001 - $15,000 | -12.28% | |
Ro Khanna House | Feb 6, 2026 | Jan 29, 2026 | 8 days | SELL | $1,001 - $15,000 | -10.50% | |
Ro Khanna House | Feb 6, 2026 | Jan 22, 2026 | 15 days | SELL | $1,001 - $15,000 | -10.33% | |
| Jan 5, 2026 | Dec 2, 2025 | 34 days | BUY | $1,001 - $15,000 | -3.83% |
Martin Marietta Materials (MLM) congressional trading FAQ
Can members of Congress legally trade Martin Marietta Materials (MLM) stock?
Yes. Members of Congress are permitted to trade individual stocks, including Martin Marietta Materials (MLM), but the STOCK Act of 2012 requires them to publicly disclose each transaction within 45 days. BullishWhales tracks those disclosures; it does not imply any trade was improper.
Are congressional Martin Marietta Materials (MLM) trades public?
Yes. Every congressional trade in Martin Marietta Materials (MLM) 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 Martin Marietta Materials (MLM)?
Members of Congress have disclosed 74 trades in Martin Marietta Materials (MLM) worth $1M across 10 members, according to public STOCK Act filings.
Which members of Congress have traded Martin Marietta Materials (MLM)?
Recent and active filers of Martin Marietta Materials (MLM) disclosures include Ro Khanna, Michael T. McCaul, April Mcclain Delaney. The full member-by-member trade list is on this page.
Do Democrats or Republicans trade Martin Marietta Materials (MLM) more?
Across disclosed Martin Marietta Materials (MLM) trades, 84% were by Democrats and 16% by Republicans, led by Democrats (84%).
What is the most recent congressional Martin Marietta Materials (MLM) trade?
The most recent disclosed Martin Marietta Materials (MLM) trade was a sale by Josh Gottheimer, filed May 18, 2026.
Browse all stocks Congress tradesCongressional trading overviewMartin Marietta Materials (MLM) 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.