Martin Marietta Materials, Inc. (MLM) Institutional Ownership & Insider Trading
1,069 institutions reported holding Martin Marietta Materials, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings.
Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason
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- Market cap
- 30.5B
- P/E TTM
- —
- Dividend yield
- 0.7%
- 52-week
- —
- Next earnings
- 4 Nov, in 11 days
Institutions · all 13F filers
quarter to 30 Jun 2026 · filers in both quarters1,069 institutions held 98.6% of the shares. Across filers that reported both quarters, shares held changed +0.3%.
Largest moves, shares (millions)
Institutional flow by quarter
net shares added or trimmed, millions · filers in both quarters| Quarter | Holders | Shares held, M | Change | Increased | New | Decreased | Closed |
|---|---|---|---|---|---|---|---|
| Jun 26 | 1,069 | 59 | +0.3% | 306 | 77 | 349 | 79 |
| Mar 26 | 1,060 | 58 | -3.1% | 313 | 62 | 316 | 98 |
| Dec 25 | 1,089 | 60 | -3.0% | 287 | 71 | 292 | 56 |
| Sep 25 | 1,026 | 61 | +3.0% | 297 | 96 | 267 | 41 |
| Jun 25 | 978 | 60 | +0.5% | 316 | 91 | 251 | 57 |
| Mar 25 | 925 | 59 | +0.7% | 313 | 77 | 269 | 115 |
| Dec 24 | 962 | 59 | -6.3% | 302 | 73 | 279 | 68 |
| Sep 24 | 919 | 59 | -0.1% | 310 | 64 | 263 | 61 |
Martin Marietta Materials, Inc. — questions
- Who owns Martin Marietta Materials, Inc. stock?
- 1,069 institutions reported Martin Marietta Materials, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (7.8%), VANGUARD CAPITAL MANAGEMENT LLC (6.5%), VANGUARD PORTFOLIO MANAGEMENT LLC (5.3%).
Every figure on this page comes from Martin Marietta Materials, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.
How these figures are read: methodology · EquiReason.