Position history for WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's holdings in MARTIN MARIETTA MATLS INC
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC holds 272,392 shares of MLM (MARTIN MARIETTA MATLS INC), worth $160.4M as of 2026-Q1. The position was increased (+0.8% shares). MLM represents 0.5% of WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's portfolio.
Current Value
$160.4M
Current Shares
272,392
Total Value Change
-$42.7M
Total Shares Change
-102,419
Other major holders of MLM: Select Equity Group, L.P.
Increased |
| 272,392 |
+0.8% |
| $160.4M |
| 0.5% |
| $656.78 |
43 |
| 2025-Q4 | Decreased | 270,203 | -2.6% | $168.2M | 0.5% | $631.42 | 0 |
| 2025-Q3 | Decreased | 277,356 | -3.3% | $174.8M | 0.5% | $620.42 | 0 |
| 2025-Q2 | Decreased | 286,715 | -2.1% | $157.4M | 0.4% | $548.58 | 0 |
| 2025-Q1 | Decreased | 292,752 | -33.2% | $140M | 0.4% | $476.03 | 0 |
| 2024-Q4 | Increased | 438,202 | +5.5% | $226.3M | 0.6% | $517.26 | 46 |
| 2024-Q3 | Increased | 415,475 | +10.8% | $223.6M | 0.6% | $535.31 | 48 |
| 2024-Q2 | Increased | 374,811 | +1.0% | $203.1M | 0.5% | $537.18 | 43 |