STATE OF WISCONSIN INVESTMENT BOARD
Position in MLM — Martin Marietta Materials Inc
CIK 854157
MADISON, WI
Position in MLM
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$18,530,524
-$480,896 QoQ
Shares Held
32,132
-0.5% QoQ
Ownership
0.053%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
#146
of 1,072 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in MLM Over Time
Shares Held
Position Value (USD)
Position in Building Materials
Basic Materials · as of Jun 30, 2026STATE OF WISCONSIN INVESTMENT BOARD holds $101,311,987 across 6 Building Materials names. MLM ranks #3 (18.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CRH |
Crh Public Ltd Co
|
357,826 | $38,287,382 | |
| 2 | VMC |
Vulcan Materials CO
|
69,559 | $20,520,600 | |
| 3 | MLM |
Martin Marietta Materials Inc
This page
|
32,132 | $18,530,524 | |
| 4 | AMRZ |
Amrize Ltd
|
258,430 | $13,774,319 | |
| 5 | EXP |
Eagle Materials Inc
|
40,237 | $9,053,325 | |
| 6 | KNF |
Knife River Corp
|
13,698 | $1,145,837 |
All Filings in MLM
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $18,530,524 | 32,132 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $19,011,420 | 32,295 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $19,455,634 | 31,246 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $20,010,129 | 31,748 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $17,804,968 | 32,434 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $24,091,058 | 50,386 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $22,608,754 | 43,773 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $28,320,023 | 52,615 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $28,377,316 | 52,376 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $31,901,550 | 51,962 | Shares | Sole | 2024-05-14 | |
| 2023-12-31 | $19,771,304 | 39,629 | Shares | Sole | 2024-02-12 | |
| 2023-09-30 | $17,449,504 | 42,510 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $16,486,488 | 35,709 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $11,788,702 | 33,202 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $8,162,989 | 24,153 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $6,154,495 | 19,108 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $8,208,153 | 27,430 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $11,152,957 | 28,977 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $12,946,882 | 29,390 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $10,221,357 | 29,915 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $9,799,315 | 27,854 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $9,696,466 | 28,874 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $8,473,948 | 29,841 | Shares | Sole | 2021-02-03 | |
| 2020-09-30 | $7,717,689 | 32,791 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $7,411,938 | 35,881 | Shares | Sole | 2020-08-12 | |
| 2020-03-31 | $6,988,453 | 36,931 | Shares | Sole | 2020-05-06 | |
| No filing history on record for this holder in this stock. | ||||||