Diamond Hill Capital Management’s Martin Marietta Materials MLM Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$123M Sell
213,905
-75,245
-26% -$44.6M 0.99% 37
2026
Q1
$170M Sell
289,150
-157,376
-35% -$100M 1.06% 35
2025
Q4
$278M Sell
446,526
-135,409
-23% -$84.2M 1.42% 24
2025
Q3
$367M Sell
581,935
-60,052
-9% -$35.8M 1.74% 21
2025
Q2
$352M Sell
641,987
-17,376
-3% -$9.18M 1.62% 24
2025
Q1
$315M Buy
659,363
+185,731
+39% +$94.3M 1.45% 27
2024
Q4
$245M Buy
473,632
+5,850
+1% +$3.32M 1.08% 40
2024
Q3
$252M Buy
467,782
+164,503
+54% +$88.9M 1.02% 44
2024
Q2
$164M Sell
303,279
-107,845
-26% -$62.7M 0.7% 52
2024
Q1
$252M Sell
411,124
-38,506
-9% -$21M 1.03% 47
2023
Q4
$224M Sell
449,630
-15,649
-3% -$7.05M 0.99% 47
2023
Q3
$191M Sell
465,279
-7,289
-2% -$3.22M 0.92% 47
2023
Q2
$218M Sell
472,568
-39,182
-8% -$15.5M 0.98% 47
2023
Q1
$182M Sell
511,750
-45,698
-8% -$16M 0.85% 51
2022
Q4
$188M Sell
557,448
-2,518
-0.4% -$859K 0.86% 49
2022
Q3
$180M Sell
559,966
-2,385
-0.4% -$807K 0.87% 48
2022
Q2
$168M Buy
+562,351
New +$192M 0.74% 57

Other funds holding MLM

Diamond Hill Capital Management's MLM Position: Q2 2026 in Review

Diamond Hill Capital Management reduced its Martin Marietta Materials (MLM) stake by 26% in Q2 2026, selling an estimated $44.6M and leaving 213,905 shares worth $123M. The position accounts for 0.99% of the portfolio, ranked #37.

Diamond Hill Capital Management first reported a position in MLM in Q2 2022 and has held it in 17 quarters since. The position peaked at $367M in Q3 2025. 1,069 funds tracked by Wall St. Rank hold MLM as of Q2 2026.

  • Diamond Hill Capital Management held 213,905 shares of Martin Marietta Materials worth $123M as of Q2 2026.
  • Diamond Hill Capital Management sold 75,245 Martin Marietta Materials shares in Q2 2026, an estimated $44.6M.
  • Martin Marietta Materials made up 0.99% of Diamond Hill Capital Management's portfolio in Q2 2026, its #37 holding.
  • Diamond Hill Capital Management first reported a position in Martin Marietta Materials in Q2 2022 and has held it in 17 quarters since.
  • Diamond Hill Capital Management's Martin Marietta Materials position peaked at $367M in Q3 2025.
  • 1,069 funds tracked by Wall St. Rank held Martin Marietta Materials as of Q2 2026.

Based on Diamond Hill Capital Management's 13F filing for Q2 2026, filed 6 Aug 2026.