Mastec Inc
MTZ- Exchange
- NYSE
- Industry
- Water, Sewer, Pipeline, Comm & Power Line Construction
- SEC CIK
- 0000015615
No open-market purchases or sales by Mastec Inc insiders were filed in the last 90 days; 911 institutions reported holding it in 13F filings for Q2 2026, worth $24.7B in total; 4 superinvestors hold it, including Lone Pine Capital and Coatue Management.
13F holders, Q3 2025
Institutional positions in Mastec Inc as of Sep 30, 2025. 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
- 652
- +65 vs. Q2 2025
- Shares held
- 57.3M
- +1.49M (+2.7%) vs. Q2 2025
- Total value
- $12.2B
- +$2.69B (+28.4%) vs. Q2 2025
- New holders
- 138
- 203 more added
- Sold out
- 73
- 224 more reduced
7 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MTZ 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 | 911 | $24.7B |
| Q1 2026 | 811 | $18.6B |
| Q4 2025 | 695 | $12.8B |
| Q3 2025 | 652 | $12.2B |
| Q2 2025 | 594 | $9.50B |
| Q1 2025 | 523 | $6.56B |
| Q4 2024 | 532 | $7.83B |
| Q3 2024 | 470 | $7.09B |
| Q2 2024 | 430 | $6.35B |
| Q1 2024 | 382 | $5.51B |
| Q4 2023 | 368 | $4.66B |
| Q3 2023 | 382 | $4.11B |
| Q2 2023 | 393 | $6.85B |
| Q1 2023 | 394 | $5.49B |
| Q4 2022 | 386 | $4.97B |
| Q3 2022 | 338 | $3.53B |
| Q2 2022 | 356 | $3.91B |
| Q1 2022 | 388 | $4.70B |
| Q4 2021 | 388 | $4.77B |
| Q3 2021 | 366 | $4.53B |
| Q2 2021 | 415 | $5.77B |
| Q1 2021 | 392 | $5.59B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Mastec Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| New Mexico Educational Retirement Board | 12,100 | $2.58M | 0.08% | 00.0% | Unchanged |
| Oregon Public Employees Retirement Fund | 12,315 | $2.62M | 0.03% | −200−1.6% | Reduced |
| Dorsey Wright & Associates | 12,377 | $2.63M | 0.59% | +12,377 | New |
| Brevan Howard Capital Management LP | 12,548 | $2.67M | 0.04% | −24,492−66.1% | Reduced |
| Penn Capital Management Co Inc | 12,431 | $2.69M | 0.21% | −1,076−8.0% | Reduced |
| Federation des caisses Desjardins du Quebec | 12,736 | $2.71M | 0.01% | −2,868−18.4% | Reduced |
| Sycomore Asset Management | 22,437 | $2.75M | 0.46% | 00.0% | Unchanged |
| NJ State Employees Deferred Compensation Plan | 13,000 | $2.77M | 0.31% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 13,200 | $2.81M | 0.01% | +200+1.5% | Added |
| Advantage Alpha Capital Partners LP | 13,298 | $2.83M | 0.85% | +2,951+28.5% | Added |
| Bank of Montreal | 13,498 | $2.87M | 0.00% | −952−6.6% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 13,665 | $2.91M | 0.04% | −23−0.2% | Reduced |
| Credit Agricole S A | 13,846 | $2.95M | 0.01% | +13,846 | New |
| Vennlight Capital Management, LP | 14,556 | $3.10M | 4.03% | +14,556 | New |
| State of Michigan Retirement System | 14,639 | $3.12M | 0.01% | −100−0.7% | Reduced |
| Natixis | 14,799 | $3.15M | 0.02% | −57,260−79.5% | Reduced |
| Bridgeway Capital Management, LLC | 14,820 | $3.15M | 0.07% | +14,820 | New |
| NorthCrest Asset Manangement, LLC | 14,828 | $3.16M | 0.08% | +3,739+33.7% | Added |
| Edmond de Rothschild Holding S.A. | 15,000 | $3.19M | 0.05% | −60,000−80.0% | Reduced |
| Shelton Capital Management | 15,205 | $3.24M | 0.07% | 00.0% | Unchanged |
| Bank of Nova Scotia | 15,221 | $3.24M | 0.01% | −55,824−78.6% | Reduced |
| Mubadala Investment Co PJSC | 15,320 | $3.26M | 0.02% | +15,320 | New |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 15,734 | $3.35M | 0.02% | −18−0.1% | Reduced |
| Otter Creek Advisors, LLC | 15,810 | $3.37M | 3.34% | +15,810 | New |
| Oliver Luxxe Assets LLC | 15,841 | $3.37M | 0.53% | +845+5.6% | Added |
| L & S Advisors Inc | 15,863 | $3.38M | 0.32% | +15,863 | New |
| Gables Capital Management Inc. | 16,154 | $3.44M | 1.47% | −330−2.0% | Reduced |
| Caisse de Depot Et Placement du Quebec | 16,500 | $3.51M | 0.01% | +16,500 | New |
| Mariner, LLC | 16,547 | $3.52M | 0.00% | +7,325+79.4% | Added |
| Thrivent Financial for Lutherans | 16,593 | $3.53M | 0.01% | +2,158+14.9% | Added |
| Louisiana State Employees Retirement System | 17,100 | $3.64M | 0.06% | −100−0.6% | Reduced |
| Hillsdale Investment Management Inc. | 17,700 | $3.77M | 0.11% | −3,520−16.6% | Reduced |
| Trexquant Investment LP | 17,745 | $3.78M | 0.04% | −98,344−84.7% | Reduced |
| Natixis Advisors, L.P. | 17,783 | $3.78M | 0.01% | +3,540+24.9% | Added |
| Mercer Global Advisors Inc | 17,784 | $3.78M | 0.01% | +12,743+252.8% | Added |
| Handelsbanken Fonder AB | 17,900 | $3.81M | 0.01% | +2,100+13.3% | Added |
| Farrow Financial Inc. | 17,914 | $3.81M | 2.21% | +24+0.1% | Added |
| Cetera Investment Advisers | 18,098 | $3.85M | 0.00% | +2,194+13.8% | Added |
| Voleon Capital Management LP | 18,241 | $3.88M | 0.09% | +18,241 | New |
| Teachers Retirement System of the State of Kentucky | 18,662 | $3.97M | 0.03% | 00.0% | Unchanged |
| Arizona State Retirement System | 18,678 | $3.97M | 0.02% | +220+1.2% | Added |
| TCW Group Inc | 18,901 | $4.02M | 0.03% | +18,901 | New |
| UBS Oconnor LLC | 19,080 | $4.06M | 0.12% | +19,080 | New |
| Engineers Gate Manager LP | 19,147 | $4.07M | 0.05% | −27,877−59.3% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 19,216 | $4.09M | 0.01% | −8,820−31.5% | Reduced |
| Bouvel Investment Partners, LLC | 19,650 | $4.18M | 1.28% | +413+2.1% | Added |
| Paradigm Financial Partners, LLC | 19,825 | $4.22M | 0.43% | 00.0% | Unchanged |
| Sheets Smith Wealth Management | 19,870 | $4.23M | 0.48% | −82−0.4% | Reduced |
| Prevail Innovative Wealth Advisors, LLC | 19,967 | $4.25M | 0.82% | −1,191−5.6% | Reduced |
| Ardsley Advisory Partners LP | 20,000 | $4.26M | 0.65% | +20,000 | New |
| Yousif Capital Management, LLC | 20,111 | $4.28M | 0.05% | −1,539−7.1% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 20,162 | $4.29M | 0.01% | +5,420+36.8% | Added |
| ExodusPoint Capital Management, LP | 20,193 | $4.30M | 0.06% | +20,193 | New |
| State of New Jersey Common Pension Fund D | 20,586 | $4.38M | 0.02% | −1,106−5.1% | Reduced |
| Gs Investments, Inc. | 21,056 | $4.48M | 2.22% | −11,119−34.6% | Reduced |
| Virginia Retirement Systems Et Al | 21,100 | $4.49M | 0.03% | −1,100−5.0% | Reduced |
| Two Sigma Advisers, LP | 21,700 | $4.62M | 0.01% | −16,100−42.6% | Reduced |
| US Bancorp | 21,863 | $4.65M | 0.01% | −9,774−30.9% | Reduced |
| Citigroup Inc | 22,162 | $4.72M | 0.00% | −3,655−14.2% | Reduced |
| Jefferies Financial Group Inc. | 22,330 | $4.75M | 0.04% | −10,670−32.3% | Reduced |
| Prudential Financial Inc | 22,494 | $4.79M | 0.01% | −133,026−85.5% | Reduced |
| SummitTX Capital, L.P. | 22,673 | $4.83M | 0.20% | −36,097−61.4% | Reduced |
| Pathstone Holdings, LLC | 23,208 | $4.94M | 0.02% | −2,094−8.3% | Reduced |
| Stifel Financial Corp | 23,421 | $4.98M | 0.00% | +251+1.1% | Added |
| AMF Pensionsforsakring AB | 23,604 | $5.02M | 0.03% | +23,604 | New |
| Walleye Trading LLC | 23,622 | $5.03M | 0.08% | +23,622 | New |
| Intech Investment Management LLC | 24,134 | $5.14M | 0.05% | −2,595−9.7% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 24,237 | $5.16M | 0.01% | +7,822+47.7% | Added |
| Campbell Newman Asset Management Inc | 24,254 | $5.16M | 0.38% | −1,347−5.3% | Reduced |
| Illinois Municipal Retirement Fund | 24,798 | $5.28M | 0.07% | −1,956−7.3% | Reduced |
| Scotia Capital Inc. | 25,049 | $5.33M | 0.02% | −136−0.5% | Reduced |
| Stephens Inc | 25,074 | $5.34M | 0.07% | +21,405+583.4% | Added |
| Advisor Group Holdings, Inc. | 29,194 | $5.36M | 0.01% | −924−3.1% | Reduced |
| PDT Partners, LLC | 25,533 | $5.43M | 0.34% | −90.0% | Reduced |
| First National Bank of Omaha | 25,580 | $5.44M | 0.34% | −1,292−4.8% | Reduced |
| BI Asset Management Fondsmaeglerselskab A/S | 25,646 | $5.46M | 0.05% | +288+1.1% | Added |
| AXA Investment Managers S.A. | 25,923 | $5.52M | 0.01% | +25,923 | New |
| Man Group plc | 26,441 | $5.63M | 0.01% | +8,108+44.2% | Added |
| Lisanti Capital Growth, LLC | 27,278 | $5.81M | 1.42% | +5,503+25.3% | Added |
| First National Advisers, LLC | 27,439 | $5.84M | 0.79% | +632+2.4% | Added |
| Kingswood Wealth Advisors, LLC | 27,484 | $5.85M | 0.35% | +1,391+5.3% | Added |
| Police & Firemen's Retirement System of New Jersey | 27,567 | $5.87M | 0.05% | +3,970+16.8% | Added |
| State of Tennessee, Treasury Department | 27,607 | $5.88M | 0.02% | −2,695−8.9% | Reduced |
| Danske Bank A/S | 27,804 | $5.92M | 0.01% | +27,104+3,872.0% | Added |
| Kennedy Capital Management, Inc. | 27,876 | $5.93M | 0.13% | −6,546−19.0% | Reduced |
| Janus Henderson Group PLC | 27,887 | $5.94M | 0.00% | +1,057+3.9% | Added |
| Los Angeles Capital Management LLC | 27,907 | $5.94M | 0.02% | −30,916−52.6% | Reduced |
| Treasurer of the State of North Carolina | 27,960 | $5.95M | 0.02% | −1,087−3.7% | Reduced |
| Mutual of America Capital Management LLC | 28,314 | $6.03M | 0.06% | −2,174−7.1% | Reduced |
| Chase Investment Counsel Corp | 28,665 | $6.10M | 1.81% | −547−1.9% | Reduced |
| Voya Investment Management LLC | 28,734 | $6.11M | 0.01% | −20,342−41.4% | Reduced |
| Hodges Capital Management Inc. | 28,749 | $6.12M | 0.52% | +1,721+6.4% | Added |
| Amalgamated Bank | 28,782 | $6.13M | 0.04% | +63+0.2% | Added |
| O'Shaughnessy Asset Management, LLC | 28,914 | $6.15M | 0.04% | +4,316+17.5% | Added |
| Voloridge Investment Management, LLC | 30,033 | $6.39M | 0.02% | +30,033 | New |
| CWM, LLC | 30,044 | $6.39M | 0.02% | +10,835+56.4% | Added |
| Erste Asset Management GmbH | 30,745 | $6.44M | 0.06% | +2,425+8.6% | Added |
| New York State Teachers Retirement System | 30,443 | $6.48M | 0.01% | −1,864−5.8% | Reduced |
| Comerica Bank | 30,522 | $6.50M | 0.02% | +2,441+8.7% | Added |
| New York State Common Retirement Fund | 30,929 | $6.58M | 0.01% | −9,762−24.0% | Reduced |