William Blair & Company’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
Q1 | $25.8M | Buy |
43,837
+29,374
| +203% | +$18.7M | 0.07% | 216 |
|
|
2025
Q4 | $9.01M | Buy |
14,463
+4,696
| +48% | +$2.92M | 0.02% | 381 |
|
|
2025
Q3 | $6.16M | Buy |
9,767
+85
| +0.9% | +$50.7K | 0.02% | 472 |
|
|
2025
Q2 | $5.31M | Sell |
9,682
-38
| -0.4% | -$20.1K | 0.01% | 475 |
|
|
2025
Q1 | $4.65M | Sell |
9,720
-625
| -6% | -$317K | 0.01% | 503 |
|
|
2024
Q4 | $5.34M | Buy |
10,345
+136
| +1% | +$77.2K | 0.02% | 481 |
|
|
2024
Q3 | $5.5M | Buy |
10,209
+2,524
| +33% | +$1.36M | 0.02% | 482 |
|
|
2024
Q2 | $4.16M | Buy |
7,685
+2
| +0% | +$1.16K | 0.01% | 527 |
|
|
2024
Q1 | $4.72M | Buy |
7,683
+359
| +5% | +$196K | 0.01% | 490 |
|
|
2023
Q4 | $3.65M | Buy |
7,324
+426
| +6% | +$192K | 0.01% | 531 |
|
|
2023
Q3 | $2.83M | Sell |
6,898
-2,794
| -29% | -$1.24M | 0.01% | 577 |
|
|
2023
Q2 | $4.47M | Buy |
9,692
+182
| +2% | +$71.8K | 0.02% | 473 |
|
|
2023
Q1 | $3.38M | Sell |
9,510
-449
| -5% | -$158K | 0.01% | 531 |
|
|
2022
Q4 | $3.37M | Sell |
9,959
-27
| -0.3% | -$9.21K | 0.01% | 516 |
|
|
2022
Q3 | $3.22M | Buy |
9,986
+933
| +10% | +$316K | 0.01% | 519 |
|
|
2022
Q2 | $2.71M | Sell |
9,053
-279
| -3% | -$95.2K | 0.01% | 563 |
|
|
2022
Q1 | $3.59M | Sell |
9,332
-1,055
| -10% | -$409K | 0.01% | 547 |
|
|
2021
Q4 | $4.58M | Buy |
10,387
+703
| +7% | +$285K | 0.01% | 495 |
|
|
2021
Q3 | $3.31M | Sell |
9,684
-1,418
| -13% | -$516K | 0.01% | 560 |
|
|
2021
Q2 | $3.91M | Buy |
11,102
+6,839
| +160% | +$2.44M | 0.01% | 520 |
|
|
2021
Q1 | $1.43M | Buy |
4,263
+94
| +2% | +$30K | 0.01% | 783 |
|
|
2020
Q4 | $1.18M | Sell |
4,169
-153
| -4% | -$40.7K | ﹤0.01% | 801 |
|
|
2020
Q3 | $1.02M | Sell |
4,322
-158
| -4% | -$34.2K | ﹤0.01% | 754 |
|
|
2020
Q2 | $925K | Buy |
4,480
+1
| +0% | +$192 | ﹤0.01% | 740 |
|
|
2020
Q1 | $848K | Sell |
4,479
-77
| -2% | -$18.4K | 0.01% | 716 |
|
|
2019
Q4 | $1.27M | Buy |
+4,556
| New | +$1.22M | 0.01% | 719 |
|
|
2018
Q4 | – | Sell |
-2,003
| Closed | -$364K | – | 1742 |
|
|
2018
Q3 | $364K | Sell |
2,003
-548
| -21% | -$113K | ﹤0.01% | 1057 |
|
|
2018
Q2 | $570K | Buy |
2,551
+331
| +15% | +$70.6K | ﹤0.01% | 908 |
|
|
2018
Q1 | $460K | Buy |
2,220
+376
| +20% | +$81.5K | ﹤0.01% | 947 |
|
|
2017
Q4 | $408K | Buy |
1,844
+651
| +55% | +$136K | ﹤0.01% | 1030 |
|
|
2017
Q3 | $246K | Buy |
1,193
+159
| +15% | +$33.6K | ﹤0.01% | 1190 |
|
|
2017
Q2 | $230K | Buy |
+1,034
| New | +$234K | ﹤0.01% | 1290 |
|
|
2016
Q3 | – | Sell |
-1,678
| Closed | -$322K | – | 1307 |
|
|
2016
Q2 | $322K | Buy |
+1,678
| New | +$300K | ﹤0.01% | 959 |
|
Other funds holding MLM
VCM
VPM
William Blair & Company's MLM Position: Q1 2026 in Review
William Blair & Company increased its Martin Marietta Materials (MLM) stake by 203% in Q1 2026, buying an estimated $18.7M and bringing the position to 43,837 shares worth $25.8M. The position accounts for 0.07% of the portfolio, ranked #216.
William Blair & Company first reported a position in MLM in Q2 2016 and has held it in 33 quarters since. 1,069 funds tracked by Wall St. Rank hold MLM as of Q1 2026.
- William Blair & Company held 43,837 shares of Martin Marietta Materials worth $25.8M as of Q1 2026.
- William Blair & Company bought 29,374 Martin Marietta Materials shares in Q1 2026, an estimated $18.7M.
- Martin Marietta Materials made up 0.07% of William Blair & Company's portfolio in Q1 2026, its #216 holding.
- William Blair & Company first reported a position in Martin Marietta Materials in Q2 2016 and has held it in 33 quarters since.
- 1,069 funds tracked by Wall St. Rank held Martin Marietta Materials as of Q1 2026.
Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.