Martin Marietta Materials Inc (MLM) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

60,349,854Shares Outstanding

1,461,515Shares held by institutions

$974,143,593Value of institutional holdings

94.94%Institutional ownership %

2.23%Shares Changed QoQ

1,052No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

The institutional landscape for Martin Marietta Materials Inc (NYSE:MLM) includes 1052 filers as of the latest reporting cycle ending December 2025.

Martin Marietta Materials saw its institutional ownership percentage fell to 94.9% in December 2025 from 96.5% in September 2025.
In percentage terms, this reflects as a holdings change of 2.23% quarter on quarter, and an increase of 7.24% year over year.
Of these 1052 institutional investors, 474 increased their holdings in Martin Marietta Materials, while 342 of them reduced positions, and 236 investors maintained their exposure.
Collectively, institutional investors increased their stake in Martin Marietta Materials to 57.30Mn shares as of December 2025, a change that is up by 1.25Mn shares quarter on quarter and down 1.73Mn shares year over year.
With 7.37Mn shares, VANGUARD GROUP INC commands the largest institutional position in Martin Marietta Materials as of December 31, 2025, equating to 12.22% of the company.
Among the most significant buyers of Martin Marietta Materials during December 2025 were VICTORY CAPITAL MANAGEMENT INC (836.12K), NORGES BANK (569.62K), BlackRock, Inc. (334.22K), Interval Partners, LP (207.17K), NOMURA ASSET MANAGEMENT INTERNATIONAL INC. (173.81K).
Leading sellers of Martin Marietta Materials stock in December 2025 included JPMORGAN CHASE & CO (705.20K), T. Rowe Price Investment Management, Inc. (455.35K), MACQUARIE GROUP LTD (196.21K), DIAMOND HILL CAPITAL MANAGEMENT INC (135.41K), Aristotle Capital Management, LLC (103.85K).
The top 10 institutional holders of Martin Marietta Materials for the quarter ending December 2025 included VANGUARD GROUP INC (7.37Mn), BlackRock, Inc. (4.49Mn), FMR LLC (2.92Mn), STATE STREET CORP (2.77Mn), VICTORY CAPITAL MANAGEMENT INC (2.45Mn), BANK OF AMERICA CORP /DE/ (2.38Mn), JPMORGAN CHASE & CO (2.23Mn), PRINCIPAL FINANCIAL GROUP INC (2.17Mn), Aristotle Capital Management, LLC (2.05Mn), GEODE CAPITAL MANAGEMENT, LLC (1.55Mn).

1,052 Institutional Holders

1,461,515 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VANGUARD GROUP INC	31 Dec, 2025	7,373,884	-69,061	-0.93%	$4,591,422,612.00
BlackRock, Inc.	31 Dec, 2025	4,486,226	334,218	8.05%	$2,793,393,356.00
FMR LLC	31 Dec, 2025	2,921,794	42,247	1.47%	$1,819,284,259.00
STATE STREET CORP	31 Dec, 2025	2,771,720	-25,557	-0.91%	$1,725,839,175.00
VICTORY CAPITAL MANAGEMENT INC	31 Dec, 2025	2,448,928	836,120	51.84%	$1,524,853,403.00
BANK OF AMERICA CORP /DE/	31 Dec, 2025	2,378,469	12,637	0.53%	$1,480,977,213.00
JPMORGAN CHASE & CO	31 Dec, 2025	2,229,587	-705,196	-24.03%	$1,388,276,987.00
PRINCIPAL FINANCIAL GROUP INC	31 Dec, 2025	2,170,746	-33,679	-1.53%	$1,351,661,329.00
Aristotle Capital Management, LLC	31 Dec, 2025	2,050,277	-103,850	-4.82%	$1,276,677,462.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	1,553,364	10,743	0.70%	$963,405,771.00
MORGAN STANLEY	31 Dec, 2025	1,367,016	68,382	5.27%	$851,188,421.00
BAILLIE GIFFORD & CO	31 Dec, 2025	1,159,375	-36,419	-3.05%	$721,896,437.00
Select Equity Group, L.P.	31 Dec, 2025	1,067,530	30,967	2.99%	$664,708,230.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	792,519	-25,586	-3.13%	$493,470,139.00
ALKEON CAPITAL MANAGEMENT LLC	31 Dec, 2025	747,351	0	0.00%	$465,345,573.00
GARDNER RUSSO & QUINN LLC	31 Dec, 2025	726,612	39,075	5.68%	$452,432,234.00
KING LUTHER CAPITAL MANAGEMENT CORP	31 Dec, 2025	690,128	5,025	0.73%	$429,715,100.00
NORTHERN TRUST CORP	31 Dec, 2025	599,660	-2,424	-0.40%	$373,384,297.00
T. Rowe Price Investment Management, Inc.	31 Dec, 2025	598,310	-455,352	-43.22%	$372,544.00
NORGES BANK	31 Dec, 2025	569,623	569,623	0.00%	$354,681,457.00

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