Security Snapshot

MARTIN MARIETTA MATERIALS INC - Common Stock (MLM) Institutional Ownership

CUSIP: 573284106

13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026

13F reference period

Q2 2026

Institutions Reporting

1,074

Shares (Excl. Options)

59.21MFull value: 59,208,557 · shares · 30 Jun 2026

Price

$576.70

The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.

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Security type / class
Equity / Common Stock
Symbol
MLM on NYSE
All holders as of 30 Jun 2026
Q2 2026
Total 13F shares
59,208,557
Latest holder snapshot 5 signals
Total 13F value
$34,148,955,970
Portfolio coverage rank
0.03%
Share change
+840,335
Value change
+$478,003,978
Number of holders
1,074
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
71,058,903
SEC-reported price per share
$477.18
Insider filing price
$477.18
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source

Key facts

  • MLM - MARTIN MARIETTA MATERIALS INC - Common Stock is tracked under CUSIP 573284106.
  • 1074 institutions reported positions in Q2 2026.
  • 5 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 1,072 to 1,074 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from
    $34.32BFull value: $34,318,191,599 · USD · 31 Mar 2026
    to
    $34.15BFull value: $34,148,955,970 · USD · 30 Jun 2026
    .

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 1074 institutions filings for Q2 2026.

Open SEC evidence

Security key

573284106

13F reference period

Q2 2026

13F holders

1,074

13D/G owners

5

CIK / CUSIP context first

Open Q2 2026 holders MLM full holder history MARTIN MARIETTA MATERIALS INC SEC filings MARTIN MARIETTA MATERIALS INC company facts MARTIN MARIETTA MATERIALS INC insider transactions

Broader feeds

Latest 13F filings Latest 13D/G filings All securities

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
5
Security
MLM
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
LNA Holding SRL 15% $6,031,677,988 10,953,543 LNA Holding SRL 21 Aug 2026
VANGUARD CAPITAL MANAGEMENT LLC 6.4% -15% $2,185,962,996 +$24,241,446 4,555,892 +1.1% Vanguard Capital Management 30 Sep 2026
VANGUARD PORTFOLIO MANAGEMENT LLC 4.6% -12% $1,585,407,245 +$65,504,155 3,304,239 +4.3% Vanguard Portfolio Management 30 Sep 2026
STATE STREET CORP 5.2% $1,800,756,691 3,162,829 STATE STREET CORPORATION 30 Jun 2026
T. Rowe Price Investment Management, Inc. 2.6% $811,179,261 1,606,741 T. Rowe Price Investment Management, Inc. 31 Dec 2024
As of 30 Jun 2026, 1,074 institutional investors reported holding
59.21MFull value: 59,208,557 · shares · 30 Jun 2026
shares of MARTIN MARIETTA MATERIALS INC - Common Stock (MLM). This represents 83% of the company’s total
71.06MFull value: 71,058,903 · shares · Stored outstanding share count
outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
57%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 6.6% 4,692,446 +0.14% 0.04% $2,706,133,758
VANGUARD CAPITAL MANAGEMENT LLC 5.5% 3,929,705 +0.31% 0.05% $2,266,260,874
VANGUARD PORTFOLIO MANAGEMENT LLC 4.5% 3,197,395 +1.2% 0.08% $1,843,937,697
STATE STREET CORP 4.4% 3,159,639 +9.8% 0.05% $1,822,163,811
BANK OF AMERICA CORP /DE/ 3.4% 2,446,762 +2% 0.09% $1,411,047,380
FMR LLC 3.1% 2,192,603 -16% 0.05% $1,264,474,061
PRINCIPAL FINANCIAL GROUP INC 3% 2,116,369 +1.1% 0.6% $1,220,529,068
Aristotle Capital Management, LLC 2.6% 1,831,597 -6.3% 2.2% $1,056,324,799
VICTORY CAPITAL MANAGEMENT INC 2.5% 1,783,432 +8.9% 0.58% $1,028,511,969
GEODE CAPITAL MANAGEMENT, LLC 2.3% 1,601,490 +0.79% 0.05% $919,891,716
PRICE T ROWE ASSOCIATES INC /MD/ 2.3% 1,599,324 +7.4% 0.09% $922,331,000
JPMORGAN CHASE & CO 2.1% 1,466,887 -21% 0.05% $852,599,645
TCI FUND MANAGEMENT LTD 1.9% 1,315,109 1.4% $758,423,360
GOLDMAN SACHS GROUP INC 1.6% 1,163,330 +31% 0.07% $670,891,722
MORGAN STANLEY 1.4% 1,012,016 -25% 0.03% $583,631,235
Select Equity Group, L.P. 1.4% 1,011,255 -2.1% 3.1% $583,190,759
BAILLIE GIFFORD & CO 1.4% 991,786 -8.8% 0.52% $571,962,986
GARDNER RUSSO & QUINN LLC 0.99% 705,367 -1.4% 4.6% $406,784,959
KING LUTHER CAPITAL MANAGEMENT CORP 0.92% 653,184 -2% 1.5% $376,691,213
Invesco Ltd. 0.91% 649,575 -6% 0.03% $374,610,051
T. Rowe Price Investment Management, Inc. 0.9% 641,321 -33% 0.24% $369,850,000
ALKEON CAPITAL MANAGEMENT LLC 0.88% 627,351 -16% 1.4% $361,793,322
DIMENSIONAL FUND ADVISORS LP 0.82% 586,145 +7.3% 0.06% $338,069,158
NORTHERN TRUST CORP 0.8% 570,346 -2.8% 0.04% $328,918,540
NORGES BANK 0.78% 557,143 0.03% $321,304,368

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
51
Headline period
Q2 2026
Rows shown
1-25 of 51
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q3 4,146,876 $1,990,063,611 -$51,747,539 $479.81 406
2026 Q2 59,208,557 $34,148,955,970 +$478,003,978 $576.70 1,074
2026 Q1 58,360,205 $34,318,191,599 -$605,285,301 $588.68 1,072
2025 Q4 59,514,861 $37,062,665,885 +$654,895,671 $622.66 1,108
2025 Q3 58,173,071 $36,650,281,989 -$914,789,981 $630.28 1,042
2025 Q2 59,651,064 $32,748,885,826 +$485,253,818 $548.96 988
2025 Q1 58,895,917 $28,151,673,211 -$101,372,408 $478.13 940
2024 Q4 59,046,566 $30,500,646,706 -$707,161,988 $516.50 982
2024 Q3 60,107,316 $32,357,999,870 +$382,800,526 $538.25 937
2024 Q2 59,520,554 $32,221,848,693 -$58,411,420 $541.80 931
2024 Q1 59,193,280 $36,278,656,275 +$382,317,815 $613.94 947
2023 Q4 58,662,649 $29,257,574,703 -$63,048,585 $498.91 879
2023 Q3 58,723,929 $24,131,626,021 +$104,542,334 $410.48 806
2023 Q2 58,126,748 $26,822,655,740 +$57,710,099 $461.69 791
2023 Q1 58,480,730 $20,673,698,913 +$54,058,611 $355.06 735
2022 Q4 57,486,854 $19,453,400,760 -$276,298,196 $337.97 762
2022 Q3 58,409,138 $18,831,319,577 -$600,530,512 $322.09 721
2022 Q2 58,488,360 $17,517,033,973 -$157,924,952 $299.24 706
2022 Q1 58,879,583 $22,651,240,040 +$189,680,284 $384.89 748
2021 Q4 58,313,321 $25,633,893,865 +$274,979,254 $440.52 758
2021 Q3 57,639,666 $19,683,318,450 -$60,727,558 $341.68 690
2021 Q2 57,766,389 $20,300,435,573 -$42,950,817 $351.81 688
2021 Q1 58,040,087 $19,466,993,342 -$321,413,202 $335.82 686
2020 Q4 59,383,279 $16,846,947,746 -$530,272,912 $283.97 631
2020 Q3 61,391,569 $14,428,953,932 +$349,539,157 $235.36 573
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