Martin Marietta Materials shares owned by William Blair $ Company
Quarter-by-quarter ownership of Martin Marietta Materials (MLM) shares owned by William Blair $ Company
from 13F filings
Historical chart of William Blair $ Company investment in Martin Marietta Materials
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Quarterly reported holdings in Martin Marietta Materials by William Blair $ Company
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2026-03-31 | $26M | 44k | 588.68 |
| 2025-12-31 | $9.0M | 15k | 622.67 |
| 2025-09-30 | $6.2M | 9.8k | 630.25 |
| 2025-06-30 | $5.3M | 9.7k | 548.94 |
| 2025-03-31 | $4.6M | 9.7k | 478.11 |
| 2024-12-31 | $5.3M | 10k | 516.48 |
| 2024-09-30 | $5.5M | 10k | 538.25 |
| 2024-06-30 | $4.2M | 7.7k | 541.80 |
| 2024-03-31 | $4.7M | 7.7k | 613.94 |
| 2023-12-31 | $3.7M | 7.3k | 498.91 |
| 2023-09-30 | $2.8M | 6.9k | 410.48 |
| 2023-06-30 | $4.5M | 9.7k | 461.69 |
| 2023-03-31 | $3.4M | 9.5k | 355.06 |
| 2022-12-31 | $3.4M | 10k | 337.97 |
| 2022-09-30 | $3.2M | 10k | 322.05 |
| 2022-06-30 | $2.7M | 9.1k | 299.24 |
| 2022-03-31 | $3.6M | 9.3k | 384.91 |
| 2021-12-31 | $4.6M | 10k | 440.55 |
| 2021-09-30 | $3.3M | 9.7k | 341.70 |
| 2021-06-30 | $3.9M | 11k | 351.83 |
| 2021-03-31 | $1.4M | 4.3k | 335.91 |
| 2020-12-31 | $1.2M | 4.2k | 284.00 |
| 2020-09-30 | $1.0M | 4.3k | 235.31 |
| 2020-06-30 | $925k | 4.5k | 206.47 |
| 2020-03-31 | $848k | 4.5k | 189.33 |
| 2019-12-31 | $1.3M | 4.6k | 279.63 |
| 2018-09-30 | $364k | 2.0k | 181.73 |
| 2018-06-30 | $570k | 2.6k | 223.44 |
| 2018-03-31 | $460k | 2.2k | 207.21 |
| 2017-12-31 | $408k | 1.8k | 221.26 |
| 2017-09-30 | $246k | 1.2k | 206.20 |
| 2017-06-30 | $230k | 1.0k | 222.44 |
| 2016-06-30 | $322k | 1.7k | 191.90 |