Martin Marietta Materials (MLM): financials, SEC filings and peers
Martin Marietta Materials (MLM) is a construction materials company in the Materials sector of the S&P 500, headquartered in Raleigh, North Carolina.
It was founded in 1993 and joined the S&P 500 on July 2, 2014.
Its fiscal year ends in December, and its shares trade on the NYSE.
In its SEC filings it is classified as “Mining & Quarrying of Nonmetallic Minerals (No Fuels)”.
Martin Marietta Materials at a glance
- Revenue (12 months)
- $7.2B
- Revenue growth
- +19.6%
- Operating margin
- 18.2%
- Net income (12 months)
- $2.3B
- Free cash flow (12 months)
- $875M
- Cash
- $140M
- Debt
- $12.8B
- Diluted EPS (12 months)
- $37.79
Twelve months to September 30, 2026, from the 10-Q filed November 4, 2026.
Latest twelve months
Over the twelve months to September 30, 2026, Martin Marietta Materials reported revenue of $7.2 billion, up 19.6% from a year earlier.
Its operating margin was 18.2%, down 5.6 percentage points from a year earlier: for every $100 of sales, about $18 was left as operating profit.
Net income was $2.3 billion (31.9% of revenue), 99.6% higher than a year earlier.
Operating cash flow was $1.5 billion and capital spending $650 million, leaving free cash flow of $875 million (12.1% of revenue).
At the end of the period it held $140 million in cash and $12.8 billion in debt, a net debt position of $12.7 billion.
The diluted share count rose 7.8% in a year, which dilutes existing shareholders.
Five-year trend
- Revenue went from $4.7 billion in fiscal 2020 to $6.2 billion in fiscal 2025, about 5.4% a year.
- Operating margin widened from 21.3% to 23.4% over the same years.
- Free cash flow was positive in each of the last 6 fiscal years.
| Fiscal year | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Revenue | $5.4B | $6.2B | $5.9B | $5.7B | $6.2B |
| Revenue growth | 14.5% | 13.8% | -5.0% | -3.2% | 8.6% |
| Operating margin | 18.0% | 19.6% | 22.8% | 43.8% | 23.4% |
| Net income | $703M | $867M | $1.2B | $2.0B | $1.1B |
| Free cash flow | $715M | $509M | $878M | $604M | $978M |
| Diluted EPS | $11.22 | $13.87 | $18.82 | $32.41 | $18.77 |
Fiscal years as reported in Martin Marietta Materials’s 10-K filings. Free cash flow is operating cash flow minus capital spending.
Recent SEC filings
- 8-K/A filed November 4, 2026
- 10-Q filed November 4, 2026 — quarterly report
- 8-K filed November 4, 2026 — Earnings results; Regulation FD disclosure
- 8-K filed September 16, 2026 — Material agreement
- 8-K filed August 24, 2026 — Material agreement; Acquisition or sale of assets
- 8-K filed August 18, 2026 — Material agreement; Agreement terminated
- 8-K filed August 14, 2026 — Material agreement; New debt obligation
- 8-K filed August 12, 2026 — Material agreement; Regulation FD disclosure
Companies like Martin Marietta Materials
Other S&P 500 companies in Construction Materials:
More from Materials
Questions about Martin Marietta Materials
Is Martin Marietta Materials's revenue growing?
Yes. Revenue for the twelve months to September 30, 2026 was $7.2 billion, up 19.6% from a year earlier, according to its SEC filings.
Is Martin Marietta Materials profitable?
Yes. It earned $2.3 billion in net income over the twelve months to September 30, 2026, a net margin of 31.9%.
Does Martin Marietta Materials have more cash or more debt?
At September 30, 2026 it had $140 million in cash and $12.8 billion in debt, so more debt than cash.
When did Martin Marietta Materials last file financial results?
Its latest quarterly report (10-Q) was filed with the SEC on November 4, 2026.
Which companies are similar to Martin Marietta Materials?
In the S&P 500, Martin Marietta Materials is grouped in Construction Materials within the Materials sector. CRH plc (CRH), Vulcan Materials Company (VMC) are in the same group.
Understand the numbers
Source: Martin Marietta Materials’s filings with the U.S. Securities and Exchange Commission (EDGAR), retrieved November 11, 2026. Figures are as reported by the company and may be restated. This page is for information only and is not financial advice.