Martin Marietta Materials Inc
MLM- Exchange
- NYSE
- Industry
- Mining & Quarrying of Nonmetallic Minerals (No Fuels)
- SEC CIK
- 0000916076
No open-market purchases or sales by Martin Marietta Materials Inc insiders were filed in the last 90 days; 1,079 institutions reported holding it in 13F filings for Q2 2026, worth $34.2B in total; 4 superinvestors hold it, including TCI Fund Management and Gardner Russo & Quinn.
Q2 2026 vs. Q1 2026
How the institutions holding Martin Marietta Materials Inc changed between Q1 2026 and Q2 2026.
All holders in Q2 2026All holders in Q1 2026
| Measure | Q1 2026 | Of which not filed for Q2 2026 | Q2 2026 | Change |
|---|---|---|---|---|
| Holders | 1,077 | 11 | 1,079 | +13 |
| Shares | 58.4M | 101.0K | 59.2M | +954.3K (+1.6%) |
| Value | $34.3B | $59.4M | $34.2B | −$107.1M (−0.3%) |
11 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.
New holders (110)
Institutions that held Martin Marietta Materials Inc at the end of Q2 2026 but not at the end of Q1 2026.
Showing the largest 100 of 110 by value.
Sold out (97)
Institutions that held Martin Marietta Materials Inc at the end of Q1 2026 and filed for Q2 2026 without it.
Not filed for Q2 2026 yet (11)
Institutions that held Martin Marietta Materials Inc at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q1 2026 | Value, Q1 2026 |
|---|---|---|
| Janus Henderson Group PLC | 56,174 | $33.1M |
| Exencial Wealth Advisors, LLC | 25,795 | $15.2M |
| Evelyn Partners Investment Management LLP | 4,744 | $2.79M |
| Jackson Hole Capital Partners, LLC | 4,687 | $2.76M |
| CWM, LLC | 4,428 | $2.61M |
| Skopos Labs, Inc. | 4,203 | $2.47M |
| USA Financial Portformulas Corp | 718 | $422.7K |
| North Ridge Wealth Advisors, Inc. | 188 | $110.7K |
| Red Tortoise LLC | 13 | $7.65K |
| Sunbelt Securities, Inc. | 6 | $3.53K |
| Arcadia Investment Management Corp | 1 | $589 |