MLM: who owns it, and who’s predicted to buy next
Martin Marietta Materials · Materials · on the Prior Moves forward board for 2026-06-30 at rank #77. Research, not investment advice.
Predicted to buy next quarter
16 tracked investors are predicted to hold or add MLM as a position for 2026-06-30, each by that investor’s own walk-forward model. This is a statement about a filing pattern, about six weeks ahead of the public 13F, never a claim that anyone has bought it or that you should.
- David Abrams · Abrams Capital
- Bill Ackman · Pershing Square
- Lee Ainslie · Maverick
- Chuck Akre · Akre Capital
- Brad Gerstner · Altimeter
- Ariel
- Ray Dalio · Bridgewater
- Warren Buffett · Berkshire Hathaway
- Michael Burry · Scion
- Philippe Laffont · Coatue
- Corvex
- Stanley Druckenmiller · Duquesne
- Egerton
- David Einhorn · Greenlight
- Engaged
- Bruce Berkowitz · Fairholme
Highest model probability: Dan Sundheim at 91%.
Currently disclosed holders
From the most recent 13F books we track, 1 investor discloses a position in MLM (weight = share of that investor’s US equity book). A 13F can be up to 45 days stale.
| Investor | Book weight |
|---|---|
| Tom Russo · Gardner Russo & Quinn | 5.0% |
The predicted next buys, fresh disclosures, and the week’s catalysts. One email a week. Honest numbers, never advice.
See the full ranked board on top picks, how the PriorScore is built on how it works, the honest edge numbers on methodology, and the running accuracy on the prediction leaderboard. Forward quarter 2026-06-30, data as of 2026-07-18. Research, not investment advice, see the disclaimer.