MLM - Martin Marietta Materials
This page shows which of the focused investors we track hold MLM and how their positions changed, so you can see how much conviction the group has in the stock.
In Q1 2026 it was held by 2 managers with an aggregate reported value of $444.56M, which is 0.04% of the combined portfolio.
As of Q1 2026, 2 tracked institutional managers held MLM (Martin Marietta Materials) with an aggregate reported value of $444.56M — 0.04% of the combined AlphaBaseline portfolio.
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- Source
- Curated SEC 13F filings
- Period
- Q1 2026
- Ticker
- MLM
13F data is delayed and excludes shorts/non-13F assets.
Holders
| 1 | Thomas Russo - Gardner Russo & Quinn | 4.96% | Reduce -1.5% | 715,411 | $421.15M |
| 2 | Wallace Weitz - Weitz Investment Management | 1.63% | Reduce -3.6% | 39,775 | $23.41M |
Loading holder history for MLM…