Filing Flows › Martin Marietta Materials (MLM) › Who owns the stock
Who owns Martin Marietta Materials (MLM) stock
1,016 funds reported Martin Marietta Materials (MLM) shares in their latest 13F filings, worth $37.3B in all. The largest holder is Vanguard Group ($4.6B). Last quarter 422 funds added to their stakes and 457 cut them. Members of Congress and other officials disclosed 9 trades (7 buys, 2 sales).
Largest holders (13F)
| Fund | Shares | Value | Change | Quarter |
|---|---|---|---|---|
| Vanguard Group | 7,373,884 | $4.6B | decrease | 2025-12-31 |
| BlackRock | 4,692,446 | $2.7B | increase | 2026-06-30 |
| Vanguard Capital Management LLC | 3,929,705 | $2.3B | increase | 2026-06-30 |
| Vanguard Portfolio Management LLC | 3,197,395 | $1.8B | increase | 2026-06-30 |
| State Street | 3,159,639 | $1.8B | increase | 2026-06-30 |
| Bank of America | 2,446,762 | $1.4B | increase | 2026-06-30 |
| FMR LLC | 2,192,603 | $1.3B | decrease | 2026-06-30 |
| Principal Financial Group | 2,116,369 | $1.2B | increase | 2026-06-30 |
| Aristotle Capital Management, LLC | 1,831,597 | $1.1B | decrease | 2026-06-30 |
| Victory Capital Management | 1,783,432 | $1.0B | increase | 2026-06-30 |
| Price T Rowe Associates | 1,599,324 | $922M | increase | 2026-06-30 |
| Geode Capital Management, LLC | 1,601,490 | $920M | increase | 2026-06-30 |
| TCI Fund Management | 1,315,109 | $758M | new | 2026-06-30 |
| Goldman Sachs Group | 1,163,330 | $671M | increase | 2026-06-30 |
| Morgan Stanley | 1,012,016 | $584M | decrease | 2026-06-30 |
Trades by Congress and other officials
| Date | Who | Trade | Amount |
|---|---|---|---|
| 2026-08-25 | April McClain Delaney | sale | $250K–$500K |
| 2026-08-19 | April McClain Delaney | purchase | $1K–$15K |
| 2026-07-24 | April McClain Delaney | purchase | $15K–$50K |
| 2026-07-20 | April McClain Delaney | purchase | $1K–$15K |
| 2026-07-17 | April McClain Delaney | purchase | $1K–$15K |
| 2026-05-28 | April McClain Delaney | purchase | $1K–$15K |
| 2026-04-09 | Josh Gottheimer | sale | $15K–$50K |
| 2026-03-09 | April McClain Delaney | purchase | $1K–$15K |
| 2025-12-02 | April McClain Delaney | purchase | $1K–$15K |
Martin Marietta Materials' latest quarter
Martin Marietta Materials, Q3 2026: revenue $2.4B (+28% year over year), operating margin 18.5%, net earnings $256M, operating cash flow $557M. The chart follows the revenue to costs, profit and cash.
Questions
Who owns the most MLM stock?
By the latest 13F filings: Vanguard Group ($4.6B); BlackRock ($2.7B); Vanguard Capital Management LLC ($2.3B); Vanguard Portfolio Management LLC ($1.8B); State Street ($1.8B).
Has Congress traded MLM stock?
Officials disclosed 9 trades on file: 7 buys and 2 sales. The latest: April McClain Delaney, sale on 2026-08-25.
What is the short interest in MLM?
3,210,245 shares were sold short at the 2026-10-15 settlement, 0.7% of the float.
Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.