T. Rowe Price Investment Management, Inc.
Position in MLM — Martin Marietta Materials Inc
CIK 1897612
BALTIMORE, MD
Position in MLM
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$560,659,420
-$10,671,602 QoQ
Shares Held
952,401
+3.8% QoQ
Ownership
1.59%
of shares outstanding
% of Portfolio
0.39%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2022
15 quarters on record
Voting authority
Sole 99.69319645821454.ToString("F0")%
Shared 0.ToString("F0")%
None 0.30680354178544544.ToString("F0")%
Common Shares in MLM Over Time
Shares Held
Position Value (USD)
Position in Building Materials
Basic Materials · as of Mar 31, 2026T. Rowe Price Investment Management, Inc. holds $750,350,057 across 4 Building Materials names. MLM ranks #1 (74.7% of the industry book) .
All Filings in MLM
Export CSV
15 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $560,659,420 | 952,401 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $571,331,022 | 917,565 | Shares | Sole | 2026-02-19 | |
| 2025-09-30 | $664,102,085 | 1,053,662 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $626,607,098 | 1,141,444 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $580,661,631 | 1,214,443 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $829,861,583 | 1,606,702 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $1,864,472,702 | 3,463,953 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $1,532,926,117 | 2,829,321 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $1,563,328,220 | 2,546,386 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $817,275,447 | 1,638,122 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $667,231,545 | 1,625,491 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $816,094,324 | 1,767,624 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $626,010,901 | 1,763,113 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $597,064,899 | 1,766,621 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $567,833,718 | 1,762,966 | Shares | Sole | 2022-11-14 | |
| No filing history on record for this holder in this stock. | ||||||