Diamond Hill Capital's MLM Position Overview
Diamond Hill Capital (via Diamond Hill Capital Management INC) currently holds 446,526 shares of Martin Marietta Materials, Inc. (MLM) worth $278.03 M, representing 1.42% of the portfolio. First purchased in 2022-Q2, this medium-term investment has been held for 15 quarters.
Based on 13F filings, Diamond Hill Capital has maintained a strategic position in MLM, demonstrating sustained confidence in this investment. Largest addition occurred in Q1 2025, adding 185,731 shares. Largest reduction occurred in Q4 2025, reducing 135,409 shares.
Analysis based on 13F filings available since 2013 Q2
Diamond Hill Capital's Martin Marietta Materials (MLM) Holding Value Over Time
Track share changes against reported price movement
Quarterly Martin Marietta Materials (MLM) Trades by Diamond Hill Capital
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | -135,409 | Reduce 23.27% | 446,526 | $622.66 |
| Q3 2025 | -60,052 | Reduce 9.35% | 581,935 | $630.28 |
| Q2 2025 | -17,376 | Reduce 2.64% | 641,987 | $548.96 |
| Q1 2025 | +185,731 | Add 39.21% | 659,363 | $478.13 |
| Q4 2024 | +5,850 | Add 1.25% | 473,632 | $516.50 |
| Q3 2024 | +164,503 | Add 54.24% | 467,782 | $538.25 |
| Q2 2024 | -107,845 | Reduce 26.23% | 303,279 | $541.80 |
| Q1 2024 | -38,506 | Reduce 8.56% | 411,124 | $613.94 |
| Q4 2023 | -15,649 | Reduce 3.36% | 449,630 | $498.91 |
| Q3 2023 | -7,289 | Reduce 1.54% | 465,279 | $410.48 |
| Q2 2023 | -39,182 | Reduce 7.66% | 472,568 | $461.69 |
| Q1 2023 | -45,698 | Reduce 8.20% | 511,750 | $355.06 |
| Q4 2022 | -2,518 | Reduce 0.45% | 557,448 | $337.97 |
| Q3 2022 | -2,385 | Reduce 0.42% | 559,966 | $322.09 |
| Q2 2022 | +562,351 | New Buy | 562,351 | $299.24 |
Diamond Hill Capital's Martin Marietta Materials Investment FAQs
Diamond Hill Capital first purchased Martin Marietta Materials, Inc. (MLM) in Q2 2022, acquiring 562,351 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Diamond Hill Capital has held Martin Marietta Materials, Inc. (MLM) for 15 quarters since Q2 2022.
Diamond Hill Capital's largest addition to Martin Marietta Materials, Inc. (MLM) was in Q2 2022, adding 562,351 shares worth $168.28 M.
According to the latest 13F filing for Q4 2025, Diamond Hill Capital's firm, Diamond Hill Capital Management INC, owns 446,526 shares of Martin Marietta Materials, Inc. (MLM), valued at approximately $278.03 M.
As of the Q4 2025 filing, Martin Marietta Materials, Inc. (MLM) represents approximately 1.42% of Diamond Hill Capital's publicly disclosed stock portfolio, making it one of their key holdings.
Diamond Hill Capital's peak holding in Martin Marietta Materials, Inc. (MLM) was 659,363 shares, as reported at the end of Q1 2025.