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Livermore
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Martin Marietta Materials Inc

MLM
Exchange
NYSE
Industry
Mining & Quarrying of Nonmetallic Minerals (No Fuels)
SEC CIK
0000916076

No open-market purchases or sales by Martin Marietta Materials Inc insiders were filed in the last 90 days; 1,079 institutions reported holding it in 13F filings for Q2 2026, worth $34.2B in total; 4 superinvestors hold it, including TCI Fund Management and Gardner Russo & Quinn.

13F holders, Q1 2026

Institutional positions in Martin Marietta Materials Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,077
−27 vs. Q4 2025
Shares held
58.4M
+7.30M (+14.3%) vs. Q4 2025
Total value
$34.3B
+$2.51B (+7.9%) vs. Q4 2025
New holders
103
370 more added
Sold out
130
377 more reduced

13 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MLM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 1,077 institutions
Q1 2021: 692 institutionsQ2 2021: 696 institutionsQ3 2021: 700 institutionsQ4 2021: 775 institutionsQ1 2022: 763 institutionsQ2 2022: 728 institutionsQ3 2022: 736 institutionsQ4 2022: 768 institutionsQ1 2023: 746 institutionsQ2 2023: 804 institutionsQ3 2023: 815 institutionsQ4 2023: 889 institutionsQ1 2024: 957 institutionsQ2 2024: 940 institutionsQ3 2024: 948 institutionsQ4 2024: 992 institutionsQ1 2025: 953 institutionsQ2 2025: 999 institutionsQ3 2025: 1,053 institutionsQ4 2025: 1,117 institutionsQ1 2026: 1,077 institutionsQ2 2026: 1,079 institutions
Value heldQ1 2026: $34.3B
Q1 2021: $19.4BQ2 2021: $20.3BQ3 2021: $19.7BQ4 2021: $25.6BQ1 2022: $22.7BQ2 2022: $17.5BQ3 2022: $18.8BQ4 2022: $19.7BQ1 2023: $20.7BQ2 2023: $27.0BQ3 2023: $24.1BQ4 2023: $29.3BQ1 2024: $36.4BQ2 2024: $32.3BQ3 2024: $32.4BQ4 2024: $30.5BQ1 2025: $28.5BQ2 2025: $32.8BQ3 2025: $36.7BQ4 2025: $37.1BQ1 2026: $34.3BQ2 2026: $34.2B
Institutions holding MLM and their total value by quarter
QuarterHoldersValue
Q2 20261,079$34.2B
Q1 20261,077$34.3B
Q4 20251,117$37.1B
Q3 20251,053$36.7B
Q2 2025999$32.8B
Q1 2025953$28.5B
Q4 2024992$30.5B
Q3 2024948$32.4B
Q2 2024940$32.3B
Q1 2024957$36.4B
Q4 2023889$29.3B
Q3 2023815$24.1B
Q2 2023804$27.0B
Q1 2023746$20.7B
Q4 2022768$19.7B
Q3 2022736$18.8B
Q2 2022728$17.5B
Q1 2022763$22.7B
Q4 2021775$25.6B
Q3 2021700$19.7B
Q2 2021696$20.3B
Q1 2021692$19.4B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Martin Marietta Materials Inc; share changes are against Q4 2025.

Institutions holding MLM in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Rehmann Capital Advisory Group373$219.9K0.01%+5+1.4%Added
Eagle Bay Advisors LLC373$219.7K0.19%+38+11.3%Added
PUREfi Wealth, LLC371$218.6K0.14%+371New
PCM Encore, LLC371$218.4K0.04%−9−2.4%Reduced
Fisher Asset Management, LLC368$216.8K0.00%+40+12.2%Added
Livforsakringsbolaget Skandia, Omsesidigt368$216.6K0.01%00.0%Unchanged
SRS Capital Advisors, Inc.368$216.4K0.01%+139+60.7%Added
Daymark Wealth Partners, LLC367$216.3K0.01%−79−17.7%Reduced
Sendero Wealth Management, LLC365$214.9K0.02%−409−52.8%Reduced
Ostrum Asset Management365$214.9K0.01%+5+1.4%Added
Catalyst Financial Partners LLC364$214.3K0.03%+6+1.7%Added
Boston Trust Walden Corp363$213.7K0.00%00.0%Unchanged
Waldron Private Wealth LLC361$212.5K0.01%+361New
Anchor Investment Management, LLC360$212.0K0.02%−75−17.2%Reduced
Spire Wealth Management356$209.4K0.01%−937−72.5%Reduced
NFP Retirement, Inc.353$207.8K0.01%−1−0.3%Reduced
Parcion Private Wealth LLC350$206.0K0.01%−75−17.6%Reduced
Oakwell Private Wealth Management, LLC350$206.0K0.04%−1−0.3%Reduced
Penobscot Investment Management Company, Inc.350$206.0K0.02%00.0%Unchanged
Vanguard National Trust Co350$206.0K0.01%+350New
TRB Wealth Management, LLC350$206.0K0.03%+350New
We Are One Seven, LLC348$205.0K0.00%+14+4.2%Added
Traynor Capital Management, Inc.357$204.8K0.01%−4−1.1%Reduced
Wealthspire Advisors, LLC346$203.7K0.00%−215−38.3%Reduced
Capital Investment Advisors, LLC345$203.3K0.00%+20+6.2%Added
Heartland Bank & Trust Co345$203.1K0.05%+15+4.5%Added
Private Wealth Asset Management, LLC343$201.9K0.02%00.0%Unchanged
Sigma Planning Corp342$201.3K0.01%+8+2.4%Added
Private Trust Co NA337$198.4K0.02%−23−6.4%Reduced
Bokf, NA335$197.2K0.00%+12+3.7%Added
Pinnacle Wealth Planning Services, Inc.333$196.0K0.02%00.0%Unchanged
Cary Street Partner Investment Advisory LLC318$187.2K0.05%+29+10.0%Added
True Wealth Design, LLC316$186.0K0.05%+9+2.9%Added
LRI Investments, LLC315$185.4K0.02%−22−6.5%Reduced
Central Trust Co300$176.6K0.00%+8+2.7%Added
Exchange Traded Concepts, LLC279$164.2K0.00%+36+14.8%Added
Tiaa-Cref Individual & Institutional Services, LLC270$158.9K0.00%+270New
Ronald Blue Trust, Inc.234$137.5K0.00%−11−4.5%Reduced
Strategic Wealth Partners, Ltd.228$134.0K0.01%+2+0.9%Added
Los Angeles Capital Management LLC225$132.5K0.00%−47−17.3%Reduced
NBC Securities, Inc.224$131.9K0.01%+98+77.8%Added
Colonial Trust Co208$122.5K0.02%−25−10.7%Reduced
Rowland & Co Investment Counsel200$117.7K0.02%00.0%Unchanged
Davis Asset Management, L.P.200$117.7K0.00%+200New
Parkside Financial Bank & Trust197$116.0K0.01%−4−2.0%Reduced
TIAA Wealth Investment Management LLC196$114.6K0.00%+196New
Global Assets Advisory, LLC190$111.8K0.03%+190New
North Ridge Wealth Advisors, Inc.188$110.7K0.06%00.0%Unchanged
CVA Family Office, LLC176$103.6K0.01%+51+40.8%Added
Smithfield Trust Co175$103.0K0.00%00.0%Unchanged
Swedbank AB171$100.7K0.00%−2,336−93.2%Reduced
Onefund, LLC164$98.2K0.06%−58−26.1%Reduced
Western Pacific Wealth Management, LP159$93.6K0.10%+16+11.2%Added
Westpac Banking Corp158$93.0K0.01%00.0%Unchanged
Glen Eagle Advisors, LLC150$88.3K0.01%00.0%Unchanged
Johnson Financial Group, Inc.148$87.1K0.00%−64−30.2%Reduced
Versant Capital Management, Inc147$86.5K0.01%+45+44.1%Added
Annis Gardner Whiting Capital Advisors, LLC143$84.2K0.01%00.0%Unchanged
Clayton Financial Group LLC140$82.4K0.04%00.0%Unchanged
Harbour Investments, Inc.137$80.7K0.00%+70+104.5%Added
Osbon Capital Management LLC136$80.1K0.07%00.0%Unchanged
Valley National Advisers Inc139$80.0K0.01%−2−1.4%Reduced
Roxbury Financial LLC132$77.7K0.07%00.0%Unchanged
Eastern Bank130$76.5K0.00%00.0%Unchanged
Consultiva Wealth Management, Corp.130$76.5K0.22%00.0%Unchanged
Cary Street Partners Financial LLC130$76.5K0.00%+7+5.7%Added
Harbor Investment Advisory, LLC128$75.4K0.01%−18−12.3%Reduced
EFG International AG126$74.2K0.00%+126New
Birchbrook, Inc.126$74.1K0.04%00.0%Unchanged
Stephenson National Bank & Trust122$71.8K0.02%+50+69.4%Added
Strive Financial Group ,LLC121$71.0K0.04%00.0%Unchanged
Golden State Equity Partners117$68.9K0.01%+117New
ZRC Wealth Management, LLC115$67.7K0.02%+2+1.8%Added
Pension & Wealth Management Advisors, Inc.114$67.4K0.02%00.0%Unchanged
Fortitude Family Office, LLC114$67.1K0.02%+10+9.6%Added
Cromwell Holdings LLC111$65.3K0.04%+1+0.9%Added
First Command Advisory Services, Inc.110$64.8K0.00%+34+44.7%Added
RMG Wealth Management LLC106$62.1K0.01%+8+8.2%Added
Caldwell Trust Co105$61.8K0.01%00.0%Unchanged
Pinnacle Bancorp, Inc.103$60.6K0.02%00.0%Unchanged
Rothschild Investment LLC100$59.0K0.00%−24−19.4%Reduced
Bogart Wealth, LLC98$57.7K0.00%+12+14.0%Added
Opal Wealth Advisors, LLC97$57.1K0.01%+97New
Root Financial Partners, LLC92$54.2K0.00%−10−9.8%Reduced
Prosperity Bancshares Inc92$54.2K0.04%+18+24.3%Added
Basecamp Wealth Advisors LLC87$51.2K0.01%−2−2.2%Reduced
Deseret Mutual Benefit Administrators86$50.6K0.02%+43+100.0%Added
IMA Wealth, Inc.85$50.0K0.00%00.0%Unchanged
Pin Oak Investment Advisors Inc84$49.0K0.03%−3−3.4%Reduced
1015 Capital Partners, LLC83$48.9K0.05%00.0%Unchanged
International Assets Investment Management, LLC81$48.5K0.00%00.0%Unchanged
Midwest Capital Advisors, LLC82$48.4K0.02%00.0%Unchanged
Estabrook Capital Management82$48.3K0.01%00.0%Unchanged
Keating Financial Advisory Services, Inc.79$46.5K0.01%−2−2.5%Reduced
Brown, Lisle/Cummings, Inc.77$45.6K0.01%+63+450.0%Added
MV Capital Management, Inc.77$45.3K0.00%−2−2.5%Reduced
Raffa Wealth Management, LLC75$44.2K0.01%00.0%Unchanged
Towarzystwo Funduszy Inwestycyjnych Pzu SA75$44.2K0.01%00.0%Unchanged
Harel Insurance Investments & Financial Services Ltd.73$43.0K0.00%+7+10.6%Added
SJS Investment Consulting Inc.72$42.4K0.01%+49+213.0%Added