// company-profile
Martin Marietta Materials Inc
MLM// activity-summary
Recent insider activity is bullish. Over the last 30 days, 3 insiders purchased shares (net $110K). Buying was led by WAJSGRAS DAVID C.
// 90-day insight
Over the last 90 days, Martin Marietta Materials Inc insiders bought $110K across 13 transactions with no open-market sales.
- Most active insider: WAJSGRAS DAVID C with 2 transactions totaling $40K.
- Largest single purchase: $40K by WAJSGRAS DAVID C on May 29, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Martin Marietta Materials Inc as of 2026-03-31
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| May 29, 2026 | Pike Thomas | MLM | Award | 59 | $581.64 | $34K |
| May 29, 2026 | WAJSGRAS DAVID C | MLM | Award | 69 | $581.64 | $40K |
| May 29, 2026 | LYONS MARTIN J | MLM | Award | 61 | $581.64 | $35K |
| May 14, 2026 | Ables Dorothy M | MLM | Award | 313 | $0.00 | $0K |
| May 14, 2026 | DELLY GAYLA J | MLM | Award | 313 | $0.00 | $0K |
45 more transactions hidden
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