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, Q2 2026
Institutional positions in Martin Marietta Materials Inc as of Jun 30, 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
- 1,079
- +13 vs. Q1 2026
- Shares held
- 59.2M
- +954.3K (+1.6%) vs. Q1 2026
- Total value
- $34.2B
- −$107.1M (−0.3%) vs. Q1 2026
- New holders
- 110
- 363 more added
- Sold out
- 97
- 395 more reduced
11 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,079 | $34.2B |
| Q1 2026 | 1,077 | $34.4B |
| Q4 2025 | 1,118 | $37.7B |
| Q3 2025 | 1,053 | $38.5B |
| Q2 2025 | 999 | $32.9B |
| Q1 2025 | 953 | $28.5B |
| Q4 2024 | 992 | $30.5B |
| Q3 2024 | 948 | $33.8B |
| Q2 2024 | 940 | $33.4B |
| Q1 2024 | 957 | $38.7B |
| Q4 2023 | 889 | $30.7B |
| Q3 2023 | 815 | $24.2B |
| Q2 2023 | 804 | $27.5B |
| Q1 2023 | 746 | $21.3B |
| Q4 2022 | 768 | $19.7B |
| Q3 2022 | 736 | $18.9B |
| Q2 2022 | 728 | $17.5B |
| Q1 2022 | 763 | $22.8B |
| Q4 2021 | 775 | $25.7B |
| Q3 2021 | 700 | $19.7B |
| Q2 2021 | 696 | $20.3B |
| Q1 2021 | 692 | $19.5B |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Martin Marietta Materials Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Pinnacle Bancorp, Inc. | 103 | $59.4K | 0.02% | 00.0% | Unchanged |
| Caldwell Trust Co | 105 | $60.6K | 0.00% | 00.0% | Unchanged |
| Western Pacific Wealth Management, LP | 112 | $64.6K | 0.06% | −47−29.6% | Reduced |
| Fortitude Family Office, LLC | 115 | $66.3K | 0.01% | +1+0.9% | Added |
| Transamerica Financial Advisors, Inc. | 120 | $69.5K | 0.01% | −6,090−98.1% | Reduced |
| Westpac Banking Corp | 121 | $69.8K | 0.00% | −37−23.4% | Reduced |
| Strive Financial Group ,LLC | 121 | $69.8K | 0.03% | 00.0% | Unchanged |
| Birchbrook, Inc. | 126 | $72.6K | 0.03% | 00.0% | Unchanged |
| Harbor Investment Advisory, LLC | 128 | $73.8K | 0.01% | 00.0% | Unchanged |
| Consultiva Wealth Management, Corp. | 130 | $75.0K | 0.17% | 00.0% | Unchanged |
| Osbon Capital Management LLC | 136 | $78.4K | 0.06% | 00.0% | Unchanged |
| USA Financial Formulas | 136 | $78.4K | 0.01% | +136 | New |
| Cary Street Partners Financial LLC | 139 | $80.2K | 0.00% | +9+6.9% | Added |
| Harbour Investments, Inc. | 144 | $83.0K | 0.00% | +7+5.1% | Added |
| CVA Family Office, LLC | 150 | $86.5K | 0.01% | −26−14.8% | Reduced |
| Glen Eagle Advisors, LLC | 152 | $87.7K | 0.01% | +2+1.3% | Added |
| Cromwell Holdings LLC | 159 | $91.7K | 0.04% | +48+43.2% | Added |
| Onefund, LLC | 162 | $93.4K | 0.05% | −2−1.2% | Reduced |
| Edmond de Rothschild Holding S.A. | 166 | $95.7K | 0.00% | +166 | New |
| Smithfield Trust Co | 175 | $99.0K | 0.00% | 00.0% | Unchanged |
| TIAA Wealth Investment Management LLC | 173 | $99.8K | 0.00% | −23−11.7% | Reduced |
| Ronald Blue Trust, Inc. | 175 | $100.8K | 0.00% | −59−25.2% | Reduced |
| Eastern Bank | 175 | $100.9K | 0.00% | +45+34.6% | Added |
| Swedbank AB | 175 | $100.9K | 0.00% | +4+2.3% | Added |
| Stone House Investment Management, LLC | 175 | $100.9K | 0.01% | +175 | New |
| Custom Index Systems, LLC | 184 | $106.1K | 0.04% | +184 | New |
| Parkside Financial Bank & Trust | 186 | $107.3K | 0.01% | −11−5.6% | Reduced |
| First Command Advisory Services, Inc. | 193 | $111.3K | 0.00% | +83+75.5% | Added |
| Rowland & Co Investment Counsel | 200 | $115.3K | 0.02% | 00.0% | Unchanged |
| Davis Asset Management, L.P. | 200 | $115.3K | 0.00% | 00.0% | Unchanged |
| Swiss Re Ltd | 204 | $117.6K | 0.01% | +204 | New |
| Versant Capital Management, Inc | 206 | $118.8K | 0.01% | +59+40.1% | Added |
| Colonial Trust Co | 208 | $120.0K | 0.02% | 00.0% | Unchanged |
| Strategic Wealth Partners, Ltd. | 226 | $130.3K | 0.01% | −2−0.9% | Reduced |
| Keating Financial Advisory Services, Inc. | 234 | $134.9K | 0.02% | +155+196.2% | Added |
| Tiaa-Cref Individual & Institutional Services, LLC | 251 | $144.8K | 0.00% | −19−7.0% | Reduced |
| Exchange Traded Concepts, LLC | 258 | $148.8K | 0.00% | −21−7.5% | Reduced |
| First Horizon Corp | 260 | $149.9K | 0.01% | −221−45.9% | Reduced |
| Los Angeles Capital Management LLC | 272 | $156.9K | 0.00% | +47+20.9% | Added |
| IFG Advisory, LLC | 296 | $170.7K | 0.01% | +296 | New |
| Cary Street Partner Investment Advisory LLC | 297 | $171.3K | 0.03% | −21−6.6% | Reduced |
| Central Trust Co | 301 | $173.6K | 0.00% | +1+0.3% | Added |
| True Wealth Design, LLC | 306 | $176.5K | 0.04% | −10−3.2% | Reduced |
| NBC Securities, Inc. | 312 | $179.9K | 0.01% | +88+39.3% | Added |
| Private Trust Co NA | 324 | $186.9K | 0.01% | −13−3.9% | Reduced |
| Pinnacle Wealth Planning Services, Inc. | 336 | $193.8K | 0.02% | +3+0.9% | Added |
| Bokf, NA | 337 | $194.3K | 0.00% | +2+0.6% | Added |
| Keel Point, LLC | 348 | $200.7K | 0.01% | +348 | New |
| Penobscot Investment Management Company, Inc. | 350 | $201.8K | 0.01% | 00.0% | Unchanged |
| Vanguard National Trust Co | 350 | $201.8K | 0.01% | 00.0% | Unchanged |
| Donaldson Capital Management, LLC | 350 | $201.8K | 0.01% | +350 | New |
| Qtron Investments LLC | 351 | $202.4K | 0.03% | −1,120−76.1% | Reduced |
| Dana Investment Advisors, Inc. | 352 | $203.0K | 0.01% | −34−8.8% | Reduced |
| OneAscent Investment Solutions LLC | 353 | $203.6K | 0.19% | +353 | New |
| Spire Wealth Management | 355 | $204.7K | 0.01% | −1−0.3% | Reduced |
| Oakwell Private Wealth Management, LLC | 357 | $205.9K | 0.03% | +7+2.0% | Added |
| LRI Investments, LLC | 357 | $205.9K | 0.02% | +42+13.3% | Added |
| Anchor Investment Management, LLC | 360 | $207.7K | 0.02% | 00.0% | Unchanged |
| Traynor Capital Management, Inc. | 361 | $208.2K | 0.01% | +4+1.1% | Added |
| Boston Trust Walden Corp | 363 | $209.3K | 0.00% | 00.0% | Unchanged |
| Sendero Wealth Management, LLC | 363 | $209.3K | 0.02% | −2−0.5% | Reduced |
| Ostrum Asset Management | 365 | $210.5K | 0.01% | 00.0% | Unchanged |
| Catalyst Financial Partners LLC | 365 | $210.5K | 0.02% | +1+0.3% | Added |
| PCM Encore, LLC | 365 | $210.5K | 0.04% | −6−1.6% | Reduced |
| Livforsakringsbolaget Skandia, Omsesidigt | 368 | $212.2K | 0.01% | 00.0% | Unchanged |
| Private Wealth Asset Management, LLC | 378 | $212.2K | 0.02% | +35+10.2% | Added |
| Jackson Thornton Asset Management, LLC | 369 | $212.8K | 0.02% | +369 | New |
| Waldron Private Wealth LLC | 371 | $214.0K | 0.01% | +10+2.8% | Added |
| Rehmann Capital Advisory Group | 372 | $214.9K | 0.01% | −1−0.3% | Reduced |
| Aaron Wealth Advisors | 373 | $215.3K | 0.01% | −310−45.4% | Reduced |
| 71 West Capital Partners | 374 | $215.7K | 0.01% | +374 | New |
| Modera Wealth Management, LLC | 376 | $216.8K | 0.00% | 00.0% | Unchanged |
| IHT Wealth Management, LLC | 377 | $217.4K | 0.00% | −20−5.0% | Reduced |
| One Capital Management, LLC | 374 | $220.2K | 0.01% | 00.0% | Unchanged |
| One Wealth Advisors, LLC | 384 | $221.5K | 0.02% | 00.0% | Unchanged |
| Thompson Siegel & Walmsley LLC | 385 | $222.0K | 0.00% | 00.0% | Unchanged |
| Supplemental Annuity Collective Trust of NJ | 385 | $222.0K | 0.06% | −23−5.6% | Reduced |
| Banco Santander, S.A. | 386 | $222.6K | 0.00% | 00.0% | Unchanged |
| Claret Asset Management Corp | 388 | $224.0K | 0.02% | −32−7.6% | Reduced |
| Norden Group LLC | 390 | $224.9K | 0.02% | −222−36.3% | Reduced |
| Central Bank & Trust Co | 395 | $227.8K | 0.03% | 00.0% | Unchanged |
| Choate Investment Advisors | 399 | $230.1K | 0.00% | −221−35.6% | Reduced |
| Palisade Capital Management LLC | 400 | $230.7K | 0.01% | 00.0% | Unchanged |
| Marco Investment Management LLC | 400 | $230.7K | 0.02% | 00.0% | Unchanged |
| Charter Research & Investment Group, Inc. | 400 | $230.7K | 0.14% | 00.0% | Unchanged |
| DV Trading LLC | 400 | $230.7K | 0.02% | 00.0% | Unchanged |
| Delta Investment Management, LLC | 400 | $230.7K | 0.04% | 00.0% | Unchanged |
| West Family Investments, Inc. | 400 | $230.7K | 0.07% | +400 | New |
| Teacher Retirement System of Texas | 400 | $230.7K | 0.00% | −499−55.5% | Reduced |
| Mark Asset Management LP | 401 | $231.3K | 0.02% | −1,204−75.0% | Reduced |
| Brighton Jones LLC | 401 | $231.3K | 0.00% | +401 | New |
| Teamwork Financial Advisors, LLC | 402 | $231.8K | 0.02% | +2+0.5% | Added |
| Eagle Bay Advisors LLC | 403 | $232.5K | 0.17% | +30+8.0% | Added |
| Evolve Private Wealth, LLC | 404 | $232.9K | 0.01% | −675−62.6% | Reduced |
| Heartwood Wealth Advisors LLC | 413 | $238.2K | 0.02% | 00.0% | Unchanged |
| Flputnam Investment Management Co | 414 | $238.8K | 0.00% | −18−4.2% | Reduced |
| Johnson Investment Counsel Inc | 415 | $239.3K | 0.00% | −22−5.0% | Reduced |
| Breakwater Capital Group | 418 | $241.1K | 0.03% | 00.0% | Unchanged |
| Tred Avon Family Wealth, LLC | 418 | $241.1K | 0.07% | 00.0% | Unchanged |
| Optiver Holding B.V. | 418 | $241.1K | 0.00% | +418 | New |