STATE OF WISCONSIN INVESTMENT BOARD

Position in MLM — Martin Marietta Materials Inc

CIK 854157 MADISON, WI

Position in MLM

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$19,011,420

-$444,214 QoQ

Shares Held

32,295

+3.4% QoQ

Ownership

0.054%

of shares outstanding

% of Portfolio

0.05%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Basic Materials · as of Mar 31, 2026

STATE OF WISCONSIN INVESTMENT BOARD holds $113,500,861 across 7 Building Materials names. MLM ranks #3 (16.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CRH	Crh Public Ltd Co	369,151	$38,805,153
2	VMC	Vulcan Materials CO	102,255	$27,844,036
3	MLM	Martin Marietta Materials Inc This page	32,295	$19,011,420
4	AMRZ	Amrize Ltd	259,539	$14,539,374
5	EXP	Eagle Materials Inc	59,586	$11,288,567
6	KNF	Knife River Corp	19,545	$1,595,849
7	LOMA	Loma Negra Compania Industrial Argentina Sociedad Anonima	37,553	$416,462

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$19,011,420	32,295	+3.4%	Shares	Sole	2026-05-15
2025-12-31	$19,455,634	31,246	-1.6%	Shares	Sole	2026-02-17
2025-09-30	$20,010,129	31,748	-2.1%	Shares	Sole	2025-11-14
2025-06-30	$17,804,968	32,434	-35.6%	Shares	Sole	2025-08-14
2025-03-31	$24,091,058	50,386	+15.1%	Shares	Sole	2025-05-15
2024-12-31	$22,608,754	43,773	-16.8%	Shares	Sole	2025-02-14
2024-09-30	$28,320,023	52,615	+0.5%	Shares	Sole	2024-11-14
2024-06-30	$28,377,316	52,376	+0.8%	Shares	Sole	2024-08-14
2024-03-31	$31,901,550	51,962	+31.1%	Shares	Sole	2024-05-14
2023-12-31	$19,771,304	39,629	-6.8%	Shares	Sole	2024-02-12
2023-09-30	$17,449,504	42,510	+19.0%	Shares	Sole	2023-11-14
2023-06-30	$16,486,488	35,709	+7.6%	Shares	Sole	2023-08-14
2023-03-31	$11,788,702	33,202	+37.5%	Shares	Sole	2023-05-15
2022-12-31	$8,162,989	24,153	+26.4%	Shares	Sole	2023-02-14
2022-09-30	$6,154,495	19,108	-30.3%	Shares	Sole	2022-11-14
2022-06-30	$8,208,153	27,430	-5.3%	Shares	Sole	2022-08-15
2022-03-31	$11,152,957	28,977	-1.4%	Shares	Sole	2022-05-13
2021-12-31	$12,946,882	29,390	-1.8%	Shares	Sole	2022-02-11
2021-09-30	$10,221,357	29,915	+7.4%	Shares	Sole	2021-11-12
2021-06-30	$9,799,315	27,854	-3.5%	Shares	Sole	2021-08-12
2021-03-31	$9,696,466	28,874	-3.2%	Shares	Sole	2021-05-17
2020-12-31	$8,473,948	29,841	-9.0%	Shares	Sole	2021-02-03
2020-09-30	$7,717,689	32,791	-8.6%	Shares	Sole	2020-11-16
2020-06-30	$7,411,938	35,881	-2.8%	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.