Martin Marietta Materials Ownership | Who Owns Martin Marietta Materials?


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Martin Marietta Materials Ownership Summary


Martin Marietta Materials is owned by 84.32% institutional investors, 1.32% insiders, and 14.35% retail investors. Vanguard group is the largest institutional shareholder, holding 11.74% of MLM shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.17% of its assets in Martin Marietta Materials shares.

MLM Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockMartin Marietta Materials84.32%1.32%14.35%
SectorBasic Materials Stocks 43.71%11.17%45.11%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Vanguard group7.17M11.74%$3.71B
Blackrock funding, inc. /de4.26M6.97%$2.20B
Blackrock4.14M6.70%$2.24B
State street2.75M4.45%$1.49B
Jpmorgan chase2.68M4.38%$1.38B
Aristotle capital management2.66M4.30%$1.44B
Fmr2.51M4.11%$1.30B
Baillie gifford1.91M3.13%$987.20M
Principal financial group1.82M2.98%$939.90M
Bank of america corp /de/1.66M2.68%$896.89M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Steginsky capital112.29K12.42%$58.00M
Bluegrass capital partners lp21.00K9.63%$10.85M
Nitorum capital110.69K6.57%$57.17M
Bornite capital management lp60.00K4.17%$30.99M
Gardner russo & quinn707.01K4.13%$365.17M
M.d. sass100.16K3.89%$51.73M
Rather & kittrell31.46K3.82%$16.25M
Mader & shannon wealth management11.18K3.57%$5.78M
Lathrop investment management34.54K3.40%$17.84M
Mcdonald capital investors inc/ca100.92K3.27%$52.12M

Top Buyers

HolderShares% AssetsChange
Proficio capital partners918.43K0.07%916.74K
Norges bank594.12K0.04%594.12K
Raymond james financial380.20K0.07%380.20K
Alkeon capital management771.20K0.81%245.00K
Ubs group387.52K0.04%222.94K

Top Sellers

HolderShares% AssetsChange
T. rowe price investment management1.61M0.51%-1.86M
Amundi1.11M0.23%-430.40K
Select equity group1.41M2.89%-340.93K
Mirae asset global investments7.21K0.02%-277.94K
Aristotle capital management2.66M2.79%-215.93K

New Positions

HolderShares% AssetsChangeValue
Norges bank594.12K0.04%594.12K$306.86M
Raymond james financial380.20K0.07%380.20K$196.37M
Hawk ridge capital management lp90.60K2.23%90.60K$46.79M
Caisse de depot et placement du quebec73.00K0.08%73.00K$37.70M
Woodline partners lp34.84K0.12%34.84K$17.99M

Sold Out

HolderChange
Innealta capital-1.00
Redwood wealth management group-1.00
Hm payson-1.00
Baldwin brothers llc/ma-1.00
Sound income strategies-2.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 2024909-5.31%51,521,659-13.45%840.89%4592.68%297-6.01%
Sep 30, 2024950-0.11%59,467,680-0.17%971.04%4457.75%310-6.91%
Jun 30, 2024936-4.00%59,448,2350.85%961.06%407-6.87%328-6.55%
Mar 31, 20249758.82%58,945,7330.38%951.06%437-4.59%35120.21%
Dec 31, 20238967.43%58,723,4481.23%951.08%45824.12%2922.10%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Vanguard US Total Market Shares ETF1.93M3.17%-20.89K
Vanguard Total Stock Mkt Idx Inv1.93M3.16%7.89K
Vanguard Institutional 500 Index Trust1.69M2.78%11.66K
Principal MidCap R51.34M2.20%1.71K
Principal Aligned MidCap Equity1.33M2.18%123.06K
Vanguard Mid Cap Index Institutional1.32M2.16%5.52K
Fidelity Magellan868.41K1.42%74.40K
Fidelity 500 Index765.47K1.26%3.41K
SPDR® S&P 500 ETF760.72K1.25%-11.16K
Pioneer US Large Core Equity753.43K1.24%68.57K

Recent Insider Transactions


DateNameRoleActivityValue
Mar 05, 2025McCunniff Donald A. EVP and CHROSell$632.70K
Mar 04, 2025Petro Michael J SVP - Strategy and DevelopmentBuy$249.90K
Mar 14, 2024BAR ROSELYN R EVP, General Counsel and SecySell$6.03M
Mar 05, 2024Nye C Howard Chairman, Pres & CEOSell$3.02M
Mar 05, 2024Nye C Howard Chairman, Pres & CEOSell$9.06M

Insider Transactions Trends


DateBuySell
2025 Q111
2024 Q4--
2024 Q3--
2024 Q2--
2024 Q1-5

MLM Ownership FAQ


Who owns the most shares of Martin Marietta Materials?

Martin Marietta Materials’s largest shareholders are Vanguard group (7.17M shares, 11.74%), Blackrock funding, inc. /de (4.26M shares, 6.97%), and Blackrock (4.14M shares, 6.70%). Together, they hold 25.41% of Martin Marietta Materials’s total shares outstanding.

Does Blackrock own Martin Marietta Materials?

Yes, BlackRock owns 6.70% of Martin Marietta Materials, totaling 4.14M shares as of Jun 2024. This represents 0.05% of BlackRock's total assets, with a market value of 2.24B$. In the last quarter, BlackRock increased its holdings by 45.48K shares, a 1.11% change.

Who is Martin Marietta Materials’s biggest shareholder by percentage of total assets invested?

Steginsky capital is Martin Marietta Materials’s biggest shareholder by percentage of total assets invested, with 12.42% of its assets in 112.29K Martin Marietta Materials shares, valued at 58M$.

Who is the top mutual fund holder of Martin Marietta Materials shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Martin Marietta Materials shares, with 3.17% of its total shares outstanding invested in 1.93M Martin Marietta Materials shares.

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