Companies › MLM
MARTIN MARIETTA MATLS INC (MLM)
Institutional ownership, SEC filings and insider activity
Sector: Raw materials · SEC CIK 0000916076 · EDGAR filings · Updated 2026-07-15
MARTIN MARIETTA MATLS INC (MLM) has reported institutional ownership of 97.2%, with 1,064 institutional managers holding positions valued at $34.2B per the latest 13F reporting period. SEC filings include an active non-reliance notice on previously issued financial statements (8-K Item 4.02). The company has 7 bond series in the registry.
Latest updates
- 2026-07-15 — Current report (8-K) filed
- 2026-06-29 — Current report (8-K) filed
- 2026-06-29 — Current report (8-K) filed
- 2026-06-18 — 11-K filed
- 2026-06-02 — Insider transaction reported (Form 4)
- 2026-06-02 — Insider transaction reported (Form 4)
- 2026-06-02 — Insider transaction reported (Form 4)
- 2026-05-18 — Insider transaction reported (Form 4)
Institutional ownership overview
According to SEC 13F filings tracked by Sightfile, MARTIN MARIETTA MATLS INC has 1,064 institutional holders and institutional ownership of 97.2%.
| # | Institution | Reported value | % of tracked total |
|---|---|---|---|
| 1 | BlackRock, Inc. | $2.76B | 8.1% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $2.31B | 6.7% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $1.86B | 5.4% |
| 4 | STATE STREET CORP | $1.69B | 5.0% |
| 5 | FMR LLC | $1.54B | 4.5% |
| 6 | BANK OF AMERICA CORP /DE/ | $1.41B | 4.1% |
| 7 | PRINCIPAL FINANCIAL GROUP INC | $1.23B | 3.6% |
| 8 | Aristotle Capital Management, LLC | $1.15B | 3.4% |
| 9 | JPMORGAN CHASE & CO | $1.07B | 3.1% |
| 10 | VICTORY CAPITAL MANAGEMENT INC | $963.8M | 2.8% |
Full holder history and quarter-over-quarter changes are available inside the app.
Insider activity
Insiders reported 59 transactions (0 buys, 1 sells) across 16 reporting insiders, with a net reported value of −$636.6K.
Data flags from SEC filings
Debt profile
7 active bond series in the registry, coupons ranging 2.40%–6.25%, maturities through 2051, built from the company's own prospectus filings.
Debt maturity schedule
Principal coming due by year for MARTIN MARIETTA MATLS INC, from the company's own SEC prospectus filings (424B) tracked by Sightfile.
| Year | Bond series maturing | Known principal due |
|---|---|---|
| 2027 | 2 | — |
| 2030 | 1 | — |
| 2031 | 1 | — |
| 2034 | 1 | — |
| 2037 | 1 | — |
| 2047 | 1 | — |
| 2051 | 1 | — |
| 2054 | 1 | — |
Coupons, seniority and prospectus links for each series are available inside the app.
Fails-to-deliver
The SEC's fails-to-deliver file for 2026-06-30 reports 13,092 failed-to-deliver shares ($7.61M) for MLM — an official data point published by the SEC, shown as reported.
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NIKE INC CLASS B (NKE) · BARRICK MNG CORP (B) · WHEATON PRECIOUS METALS CORP (WPM) · FRANCO NEV CORP F (FNV) · VULCAN MATLS CO (VMC) · NUCOR CORP (NUE)
See full history, cross-references and alerts on SightfileData sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-07-15.