Martin Marietta Materials Ownership | Who Owns Martin Marietta Materials?
Martin Marietta Materials Ownership Summary
Martin Marietta Materials is owned by 98.35% institutional investors, 0.77% insiders, and 0.87% 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
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Martin Marietta Materials | 98.35% | 0.77% | 0.87% |
| Sector | Basic Materials Stocks | 52.81% | 12.20% | 34.99% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Vanguard group | 7.17M | 11.74% | $3.71B |
| Blackrock funding, inc. /de | 4.23M | 6.98% | $2.32B |
| Blackrock | 4.14M | 6.70% | $2.24B |
| State street | 2.75M | 4.45% | $1.49B |
| Jpmorgan chase | 2.68M | 4.38% | $1.38B |
| Fmr | 2.51M | 4.11% | $1.30B |
| Aristotle capital management | 2.28M | 3.75% | $1.25B |
| Baillie gifford | 1.91M | 3.13% | $987.20M |
| Principal financial group | 1.82M | 2.98% | $939.90M |
| Bank of america corp /de/ | 1.66M | 2.68% | $896.89M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Steginsky capital | 112.29K | 12.42% | $58.00M |
| Bluegrass capital partners lp | 24.00K | 9.13% | $13.18M |
| Nitorum capital | 90.79K | 7.39% | $49.84M |
| Rdst capital | 105.54K | 5.79% | $57.94M |
| Mcdonald capital investors inc/ca | 161.57K | 5.57% | $88.70M |
| M.d. sass | 123.03K | 5.44% | $67.54M |
| Pelham capital | 19.14K | 4.89% | $10.50M |
| Hawk ridge capital management lp | 191.57K | 4.39% | $105.17M |
| Bornite capital management lp | 60.00K | 4.17% | $30.99M |
| Gardner russo & quinn | 712.78K | 4.16% | $391.29M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Norges bank | 594.12K | 0.04% | 594.12K |
| Ubs group | 387.52K | 0.04% | 222.94K |
| Principal financial group | 1.82M | 0.51% | 191.04K |
| Goldman sachs group | 976.71K | 0.08% | 189.02K |
| State street | 2.75M | 0.07% | 109.74K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Amundi | 115.76K | 0.02% | -1.59M |
| American century companies | 146.87K | 0.04% | -222.52K |
| Baillie gifford | 1.91M | 0.76% | -207.86K |
| Gqg partners | - | - | -196.19K |
| Egerton capital (uk) llp | - | - | -165.34K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Norges bank | 594.12K | 0.04% | 594.12K | $306.86M |
| Rdst capital | 105.54K | 5.79% | 105.54K | $57.94M |
| Glenmede investment management, lp | 91.45K | 0.25% | 91.45K | $50.20M |
| Shellback capital, lp | 47.52K | 1.74% | 47.52K | $26.09M |
| Susquehanna portfolio strategies | 40.04K | 0.48% | 40.04K | $21.98M |
Sold Out
| Holder | Change |
|---|---|
| Loring wolcott & coolidge fiduciary advisors llp/ma | -1.00 |
| Hm payson | -1.00 |
| Valued wealth advisors | -1.00 |
| Hhm wealth advisors | -1.00 |
| Baldwin brothers llc/ma | -1.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2025 | 996 | 3.43% | 59,602,150 | 1.08% | 98 | 1.05% | 503 | 7.25% | 311 | -1.58% |
| Mar 31, 2025 | 950 | -4.62% | 58,904,747 | -0.27% | 96 | 1.05% | 463 | -7.58% | 313 | -3.99% |
| Dec 31, 2024 | 909 | -5.31% | 51,521,659 | -13.45% | 84 | 0.89% | 459 | 2.68% | 297 | -6.01% |
| Sep 30, 2024 | 950 | -0.11% | 59,467,680 | -0.17% | 97 | 1.04% | 445 | 7.75% | 310 | -6.91% |
| Jun 30, 2024 | 936 | -4.00% | 59,448,235 | 0.85% | 96 | 1.06% | 407 | -6.87% | 328 | -6.55% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard US Total Market Shares ETF | 1.93M | 3.17% | -20.89K |
| Vanguard Total Stock Mkt Idx Inv | 1.89M | 3.14% | -43.73K |
| Vanguard Institutional 500 Index Trust | 1.74M | 2.88% | 12.14K |
| Principal MidCap R5 | 1.51M | 2.51% | 35.85K |
| Vanguard 500 Index Investor | 1.49M | 2.47% | -218.70K |
| Principal Aligned MidCap Equity | 1.48M | 2.46% | 54.09K |
| Vanguard Mid Cap Index Institutional | 1.34M | 2.23% | 14.47K |
| Fidelity Magellan | 924.41K | 1.53% | -12.10K |
| Fidelity 500 Index | 763.85K | 1.27% | -7.22K |
| SPDR® S&P 500 ETF | 760.72K | 1.25% | -11.16K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 08, 2025 | PEREZ LAREE E | - | Sell | $636.63K |
| Mar 05, 2025 | McCunniff Donald A. | EVP and CHRO | Sell | $632.70K |
| Mar 04, 2025 | Petro Michael J | SVP - Strategy and Development | Buy | $249.90K |
| Mar 14, 2024 | BAR ROSELYN R | EVP, General Counsel and Secy | Sell | $6.03M |
| Mar 05, 2024 | Nye C Howard | Chairman, Pres & CEO | Sell | $3.02M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q3 | - | - |
| 2025 Q2 | - | - |
| 2025 Q1 | 1 | 1 |
| 2024 Q4 | - | - |
| 2024 Q3 | - | - |
MLM Ownership FAQ
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