MLMMartin Marietta Materials

$532.37

Who owns MLM

1,044 institutions reported holding MLM for 2026Q1, together 96% of the company, fewer than the 1,088 a quarter earlier.

1,044

Institutions reporting a position · as of 2026Q1 · down from 1,088 the quarter before

Shares held by institutions
58.3M

Shares held by institutions · 96% of the company · long US equity positions only, as reported on Form 13F

Reported value
$34.2B

Reported value · at 2026-03-31 prices, not today's

Top 5 holders
34%

Top 5 holders · of the whole company, between five filers

Details
Reporting quarter2026-03-31
2026Q1
Quarters on record
52
New positions
92
Positions exited
141
Added to
330
Reduced
339
Top 10 holdersof the company
49%
Institutional ownership by quarter, 2013Q2 to 2026Q1
QuarterFilersSharesReported value
2026Q11,04458.3M$34.2B
2025Q41,08859.5M$37.0B
2025Q31,03258.2M$36.6B
2025Q298259.6M$32.7B
2025Q193659.5M$28.4B
2024Q497458.8M$30.4B
2024Q393060.2M$32.3B
2024Q292759.5M$32.2B
2024Q194059.3M$36.3B
2023Q487258.4M$29.1B
2023Q379858.5M$24.0B
2023Q278658.5M$26.9B
2023Q172884.0M$20.7B
2022Q475258.5M$19.7B
2022Q372158.3M$18.8B
2022Q271458.4M$17.5B
Largest reported holders, 2026Q1
HolderShares% of companyValue
VANGUARD GROUP INC7.7M13%$4.52B
BlackRock Inc.4.7M7.8%$2.76B
STATE STREET CORP2.9M4.8%$1.69B
FMR LLC2.6M4.3%$1.54B
BANK OF AMERICA CORP /DE/2.4M4.0%$1.41B
PRINCIPAL FINANCIAL GROUP INC2.1M3.5%$1.23B
ARISTOTLE INVESTMENT SERVICES, LLC2.0M3.2%$1.15B
JPMORGAN CHASE & CO1.9M3.1%$1.07B
VICTORY CAPITAL MANAGEMENT INC1.6M2.7%$964M
GEODE CAPITAL MANAGEMENT LLC1.6M2.6%$932M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

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