Guru Ownership Trend
Guru Analysis for Martin Marietta Materials, Inc. (MLM)
Martin Marietta Materials, Inc. (MLM), a key player in the Materials sector, continues to attract institutional attention.
As of Q3 2025, a total of 8 Super Investors (Gurus) hold positions in the company, with a combined stake valued at approximately $893 M.
Top institutional holders include Tom Russo and Diamond Hill Capital.
Institutional sentiment is currently Slightly Bearish. This is evidenced by a $34.42 M net outflow during the quarter.
Recent activity highlights Joel Greenblatt who increased their stake by 248.9%. Conversely, Diamond Hill Capital reduced exposure by 9.4%.
| Portfolio Manager | % Portfolio | Activity | Shares | Value | Period |
|---|---|---|---|---|---|
| 4.65% | Reduce -3.5% | 687,537 | $433.34 M | Q3 2025 | |
| 1.74% | Reduce -9.4% | 581,935 | $366.78 M | Q3 2025 | |
| 0.04% | Add 35.5% | 90,248 | $56.73 M | Q3 2025 | |
| 1.41% | 41,275 | $26.01 M | Q3 2025 | ||
| 0.04% | Add 248.9% | 14,815 | $9.34 M | Q3 2025 | |
| 0.00% | New Buy | 1,855 | $1.17 M | Q3 2025 | |
| 0.00% | Add 17.8% | 556 | $350,436 | Q3 2025 | |
| 0.00% | New Buy | 383 | $241,894 | Q3 2025 |
| Period | Portfolio Manager | Activity | Share Change | % Portfolio Change |
|---|
| Period | Portfolio Manager | Activity | Share Change | % Portfolio Change |
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| Period | Portfolio Manager | Activity | Share Change | % Portfolio Change |
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| Portfolio Manager | Option Type | % Portfolio | Activity | Shares | Value | Period |
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Key Holders
Top 5 by Value
Top 5 by Conviction
Recent Activity Breakdown (Q3 2025)
Guru Consensus (Q3 2025)
FAQs for Martin Marietta Materials, Inc. (MLM)
Top Guru holders include Tom Russo ($433.34 M), Diamond Hill Capital ($366.78 M), Cliff Asness ($56.73 M). Collectively, tracked Gurus hold 1.42 M shares.
Based on recent 13F filings, the sentiment is Negative (Net Sell). There was a net outflow of $34.42 M, with 5 Gurus buying and 3 Gurus selling.
In the recent quarter, 2 Gurus reduced their positions, and 1 Gurus sold out of MLM completely. Total sell value was $57.41 M.
Yes, 2 Gurus opened new positions in MLM, and 3 added to their existing holdings. Total buy value was $22.99 M.