Martin Marietta Materials (MLM) insider buying
10 open-market purchases of MLM by Martin Marietta Materials's executives and directors since September 2025, worth $0 in total, from SEC Form 4 filings.
The most recent: Ro Khanna bought — on March 30, 2026.
The biggest buyer over the period is Ro Khanna: 6 purchases, $0.
By year
| Year | Purchases | Value |
|---|---|---|
| 2026 | 4 | $0 |
| 2025 | 6 | $0 |
Biggest buyers
| Insider | Buys | Value |
|---|---|---|
| Ro Khanna | 6 | $0 |
| April Mcclain Delaney | 4 | $0 |
Every purchase
Newest first. From SEC Form 4 filings. Insider buying across the market.
| Date | Insider | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| Mar 30, 2026 | Ro Khanna |
0 | $573.90 | — | — |
| Mar 30, 2026 | Ro Khanna |
0 | $573.90 | — | — |
| Mar 9, 2026 | April Mcclain Delaney |
0 | $612.67 | — | — |
| Mar 9, 2026 | April Mcclain Delaney |
0 | $612.67 | — | — |
| Dec 2, 2025 | April Mcclain Delaney |
0 | $608.39 | — | — |
| Dec 2, 2025 | April Mcclain Delaney |
0 | $608.39 | — | — |
| Nov 3, 2025 | Ro Khanna |
0 | $619.39 | — | — |
| Nov 3, 2025 | Ro Khanna |
0 | $619.39 | — | — |
| Sep 24, 2025 | Ro Khanna |
0 | $607.07 | — | — |
| Sep 24, 2025 | Ro Khanna |
0 | $607.07 | — | — |
Questions
Are Martin Marietta Materials insiders buying the stock?
10 open-market purchases of MLM by Martin Marietta Materials's executives and directors since September 2025, worth $0 in total, from SEC Form 4 filings. The most recent: Ro Khanna bought — on March 30, 2026.
What counts as insider buying here?
Open-market purchases (Form 4 code P) by officers and directors. Option exercises, grants and purchases by 10% owners are left out.
From Martin Marietta Materials's annual reports filed with the SEC (XBRL data), standardised by Investingly. Information only, not investment advice.