Who owns Martin Marietta Materials, Inc.?
Institutional ownership of MLM from SEC Form 13F filings across 597 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
597
13F holders
$23.87B
value, 2026 filers
72.4%
of shares outstanding (43.5M sh)
61
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of MLM's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 4.7M | $2.71B | 0.0% | 7.8% | +0.1% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 3.9M | $2.27B | 0.0% | 6.5% | -49.8% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 3.2M | $1.84B | 0.1% | 5.3% | +1.2% |
| 4 | BANK OF AMERICA CORP /DE/ | 2.4M | $1.41B | 0.1% | 4.1% | +2.0% |
| 5 | FMR LLC | 2.2M | $1.26B | 0.1% | 3.7% | -15.9% |
| 6 | PRINCIPAL FINANCIAL GROUP INC | 2.1M | $1.22B | 0.6% | 3.5% | +1.1% |
| 7 | VICTORY CAPITAL MANAGEMENT INC | 1.8M | $1.03B | 0.6% | 3% | +8.9% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1.6M | $919.9M | 0.0% | 2.7% | +0.8% |
| 9 | PRICE T ROWE ASSOCIATES INC /MD/ | 1.6M | $922,331 | 0.1% | 2.7% | +7.4% |
| 10 | JPMORGAN CHASE & CO | 1.5M | $852.6M | 0.0% | 2.4% | -21.1% |
| 11 | GOLDMAN SACHS GROUP INC | 1.2M | $670.9M | 0.1% | 1.9% | +31.3% |
| 12 | MORGAN STANLEY | 1.0M | $583.6M | 0.0% | 1.7% | -24.6% |
| 13 | BAILLIE GIFFORD & CO | 991,786 | $572.0M | 0.5% | 1.7% | -8.8% |
| 14 | KING LUTHER CAPITAL MANAGEMENT CORP | 653,184 | $376.7M | 1.5% | 1.1% | -2.0% |
| 15 | Invesco Ltd. | 649,575 | $374.6M | 0.0% | 1.1% | -6.0% |
| 16 | NORTHERN TRUST CORP | 570,346 | $328.9M | 0.0% | 0.9% | -2.8% |
| 17 | NORGES BANKNEW | 557,143 | $321.3M | 0.0% | 0.9% | new |
| 18 | Sixth Street Partners Management Company, L.P.NEW | 492,536 | $284.0M | 49.0% | 0.8% | new |
| 19 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 492,536 | $284.0M | 0.0% | 0.8% | +7.0% |
| 20 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 486,058 | $280.3M | 0.3% | 0.8% | +8.5% |
| 21 | FRANKLIN RESOURCES INC | 459,327 | $264.9M | 0.1% | 0.8% | -13.0% |
| 22 | CIBC Bancorp USA Inc. | 390,665 | $225.5M | 0.3% | 0.7% | -17.7% |
| 23 | UBS Group AG | 390,429 | $225.2M | 0.0% | 0.7% | +10.2% |
| 24 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 386,046 | $222.6M | 0.0% | 0.6% | +13.6% |
| 25 | Bank of New York Mellon Corp | 345,624 | $199.3M | 0.0% | 0.6% | -6.8% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.