MARTIN MARIETTA MATERIALS INC (MLM)
Latest MLM Insider Trades
- Michael J. Petro - OfficerGrant or award9,331 sh
David C. Wajsgras - DirectorGrant or award$40K- Thomas Pike - DirectorGrant or award
About MARTIN MARIETTA MATERIALS INC (MLM)
Martin Marietta Materials is one of the United States' largest producer of construction aggregates (crushed stone, sand, and gravel). Martin Marietta's most important markets include Texas, North Carolina, Colorado, California, and Georgia, accounting for most of its sales. The company also uses its aggregates in its asphalt and ready-mixed concrete businesses. Martin's magnesia specialties business produces magnesia-based chemical products and dolomitic lime.
- RALEIGH, NC
- 9,600
- 1994
- XNYS
90-Day SEC Filing Activity
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Grant or award | 5 | 9,880 | |
| Tax withholding / forfeiture | 1 | 368 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
MLM Insider Transactions (Form 4)
3869 Form 4 filings on record, the earliest from Dec 3, 2024, newest first. Filing history page 2 of 3.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Robert J. Cardin - Officer | Tax withholding / forfeiture | Common Stock | 209 |
Recent MLM Form 8-K Filings
5MLM Insider Trading - FAQ
What is the latest insider trade for MLM?
MARTIN MARIETTA MATERIALS INC (MLM) had 6 insider filings in the last 90 days, with the most recent on 2026-09-02. The full record for MLM runs to 69 Form 4 filings, the earliest from 2024-12-03. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying MLM stock?
No insider purchases of MLM were filed in the last 90 days.
How many insiders are selling MLM stock?
No insider sales of MLM were filed in the last 90 days. 1 sale is on record for this company.
Where can I see MLM SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page tracks MLM Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow MLM insider buys?
Create a free InsiderAlpha account and press Watch on this page to add MLM to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Materials Companies with Insider Activity
Recent Insider Filings
10Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
- - Michael J. Petro view on EDGAR
- - David C. Wajsgras view on EDGAR
- - Thomas Pike view on EDGAR
- - Martin J. Lyons view on EDGAR
- - Philipp Niemann view on EDGAR
- - Michael J. Petro view on EDGAR
- - David C. Wajsgras view on EDGAR
- - Thomas Pike view on EDGAR
- - Martin J. Lyons view on EDGAR
Related Companies - Recent Insider Activity
Learn More
- What is SEC Form 4?
- The filing insiders must submit within two business days of a trade, and how to read its transaction codes.
- Insider activity in Materials
- Where MLM's peers are being bought and sold.
- Every recent Form 4
- The full market-wide feed, updated as filings arrive from SEC EDGAR.
Track MLM insider activity as it files
Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
