Martin Marietta Materials Inc (MLM) insider trading.
In Q3 2026, insiders at Martin Marietta Materials Inc reported 6 non-derivative transactions on 8 Forms 3, 4 and 5: 0 open-market purchases and 0 sales.
- Transactions
- 6
- Purchases (P)
- 0
- Sales (S)
- 0
- Net shares, P minus S
- 0
- Insiders
- 5
- Last filed
- 2026-09-02
Insiders
| Insider | Relationship | Transactions | Buys | Sales |
|---|---|---|---|---|
| Petro Michael J | Officer · SVP and CFO | 2 | 0 | 0 |
| Lyons Martin J | Director | 1 | 0 | 0 |
| Pike Thomas | Director | 1 | 0 | 0 |
| Wajsgras David C | Director | 1 | 0 | 0 |
| Niemann Philipp | Director | 1 | 0 | 0 |
Transactions
| Date | Insider | Code | Shares | Price | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-09-01 | Petro Michael J | A (A) | 9,331 | $0 | 24,322 | Form 4 |
| 2026-08-31 | Lyons Martin J | A (A) | 68 | $518.7 | 442 | Form 4 |
| 2026-08-31 | Pike Thomas | A (A) | 66 | $518.7 | 5,029 | Form 4 |
| 2026-08-31 | Wajsgras David C | A (A) | 78 | $518.7 | 5,106 | Form 4 |
| 2026-08-21 | Niemann Philipp | A (A) | 337 | $0 | 337 | Form 4 |
| 2026-08-03 | Petro Michael J | F (D) | 368 | $542.27 | 14,991 | Form 4 |
Transaction codes in this quarter
Get MLM insider transactions through the API
curl "https://sec-api.dev/api/v1/insider-transactions?period=2026q3&cik=916076&limit=100" \
-H "Authorization: Bearer $SEC_API_KEY"Insider trading API guide · MLM company page · Martin Marietta Materials Inc on SEC.gov
Questions
Are insiders buying or selling Martin Marietta Materials Inc (MLM)?
In Q3 2026, insiders at Martin Marietta Materials Inc reported 6 non-derivative transactions on 8 Forms 3, 4 and 5: 0 open-market purchases and 0 sales. Grants, tax withholding and option exercises are counted as transactions but are not purchases or sales.
Where do these Martin Marietta Materials Inc insider trades come from?
From the SEC Insider Transactions Data Sets for Q3 2026, which republish the Forms 3, 4 and 5 filed on EDGAR. Each row links to its filing on SEC.gov.
Plain-text version for agents and LLMs: /insider-trading/mlm.md
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.