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, Q1 2026
Institutional positions in Mastec 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
- 811
- +122 vs. Q4 2025
- Shares held
- 58.0M
- +5.36M (+10.2%) vs. Q4 2025
- Total value
- $18.6B
- +$7.19B (+62.7%) vs. Q4 2025
- New holders
- 184
- 256 more added
- Sold out
- 62
- 263 more reduced
6 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 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, Q1 2026
Shares, value and share of portfolio for each institution holding Mastec Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Emerald Advisers, LLC | 8,527 | $2.74M | 0.09% | 00.0% | Unchanged |
| Sycomore Asset Management | 22,437 | $2.75M | 0.40% | 00.0% | Unchanged |
| Hedeker Wealth, LLC | 8,646 | $2.78M | 0.59% | +222+2.6% | Added |
| Lansing Street Advisors | 8,761 | $2.82M | 0.71% | 00.0% | Unchanged |
| Captrust Financial Advisors | 8,951 | $2.88M | 0.01% | −47−0.5% | Reduced |
| Jacobs Levy Equity Management, Inc | 8,961 | $2.88M | 0.01% | −596,913−98.5% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 9,072 | $2.92M | 0.00% | −637−6.6% | Reduced |
| Guggenheim Capital LLC | 9,073 | $2.92M | 0.02% | +6,385+237.5% | Added |
| WCM Investment Management, LLC | 9,576 | $2.93M | 0.01% | +9,576 | New |
| Havemeyer Place LP | 9,142 | $2.94M | 0.34% | +9,142 | New |
| Pacer Advisors, Inc. | 9,162 | $2.95M | 0.01% | +1,828+24.9% | Added |
| Altshuler Shaham Ltd | 9,223 | $2.97M | 0.05% | +3,983+76.0% | Added |
| Cookson Peirce & Co Inc | 9,263 | $2.98M | 0.13% | +379+4.3% | Added |
| Leavell Investment Management, Inc. | 9,300 | $2.99M | 0.12% | +2,050+28.3% | Added |
| Ninepoint Partners LP | 9,334 | $3.00M | 0.36% | +834+9.8% | Added |
| HighTower Advisors, LLC | 9,344 | $3.01M | 0.00% | +2,166+30.2% | Added |
| Man Group plc | 9,375 | $3.02M | 0.01% | −11,279−54.6% | Reduced |
| Gallo Partners, LP | 9,472 | $3.05M | 5.83% | +9,472 | New |
| Xponance, Inc. | 9,487 | $3.05M | 0.02% | +1,558+19.6% | Added |
| IFP Advisors, Inc | 9,838 | $3.17M | 0.07% | −1,201−10.9% | Reduced |
| Freemont Management S.A. | 10,000 | $3.22M | 0.60% | −1,000−9.1% | Reduced |
| Huntleigh Advisors, Inc. | 10,004 | $3.22M | 0.55% | +131+1.3% | Added |
| Williamson Legacy Group, LLC | 10,108 | $3.25M | 2.44% | +4,147+69.6% | Added |
| Pictet Asset Management Holding SA | 10,177 | $3.27M | 0.00% | +700+7.4% | Added |
| Catalyst Funds Management Pty Ltd | 10,390 | $3.34M | 0.57% | +10,390 | New |
| Ritholtz Wealth Management | 10,424 | $3.35M | 0.06% | −925−8.2% | Reduced |
| Engineers Gate Manager LP | 10,516 | $3.38M | 0.04% | +3,666+53.5% | Added |
| Colony Group, LLC | 10,665 | $3.43M | 0.00% | +1,040+10.8% | Added |
| Caisse de Depot Et Placement du Quebec | 10,800 | $3.47M | 0.01% | −5,700−34.5% | Reduced |
| VestGen Advisors, LLC | 8,389 | $3.53M | 0.10% | +8,389 | New |
| Walleye Trading LLC | 11,081 | $3.57M | 0.07% | +9,634+665.8% | Added |
| Hudson Bay Capital Management LP | 11,096 | $3.57M | 0.02% | +5,033+83.0% | Added |
| Ameritas Investment Partners, Inc. | 11,300 | $3.64M | 0.11% | +59+0.5% | Added |
| Monument Capital Management | 11,352 | $3.65M | 0.92% | +11,352 | New |
| DnB Asset Management AS | 11,498 | $3.70M | 0.01% | +11,498 | New |
| Oliver Luxxe Assets LLC | 11,938 | $3.84M | 0.58% | −4,487−27.3% | Reduced |
| Susquehanna International Group, LLP | 11,978 | $3.85M | 0.00% | +11,978 | New |
| Lazard Asset Management LLC | 12,066 | $3.88M | 0.01% | −55,290−82.1% | Reduced |
| New Mexico Educational Retirement Board | 12,100 | $3.89M | 0.12% | 00.0% | Unchanged |
| Arete Wealth Advisors, LLC | 12,297 | $3.94M | 0.30% | +12,297 | New |
| Oregon Public Employees Retirement Fund | 12,609 | $4.06M | 0.05% | +394+3.2% | Added |
| Atom Investors LP | 12,713 | $4.09M | 0.29% | +3,899+44.2% | Added |
| Fidelis Capital Partners, LLC | 12,804 | $4.12M | 0.29% | +852+7.1% | Added |
| Longaeva Partners L.P. | 13,014 | $4.19M | 0.20% | +13,014 | New |
| Farrow Financial Inc. | 13,029 | $4.19M | 2.38% | −1,533−10.5% | Reduced |
| Dymon Asia Capital (Singapore) Pte. Ltd. | 13,031 | $4.19M | 0.92% | −1,900−12.7% | Reduced |
| Richard Bernstein Advisors LLC | 13,515 | $4.35M | 0.13% | +13,515 | New |
| Calamos Advisors LLC | 13,527 | $4.35M | 0.02% | +3,886+40.3% | Added |
| Northwestern Mutual Investment Management Company, LLC | 13,742 | $4.42M | 0.07% | +19+0.1% | Added |
| First National Advisers, LLC | 13,744 | $4.42M | 0.65% | −8,395−37.9% | Reduced |
| Credit Agricole S A | 13,846 | $4.45M | 0.01% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 14,200 | $4.57M | 0.02% | +400+2.9% | Added |
| Prevail Innovative Wealth Advisors, LLC | 14,228 | $4.58M | 0.77% | −3,362−19.1% | Reduced |
| Creative Planning | 14,357 | $4.62M | 0.00% | +2,090+17.0% | Added |
| US Bancorp | 14,436 | $4.64M | 0.01% | −6,982−32.6% | Reduced |
| First National Bank of Omaha | 14,498 | $4.66M | 0.14% | −6,150−29.8% | Reduced |
| New Age Alpha Advisors, LLC | 14,567 | $4.69M | 0.22% | −270−1.8% | Reduced |
| State of Michigan Retirement System | 14,739 | $4.74M | 0.03% | +200+1.4% | Added |
| CI Private Wealth, LLC | 14,835 | $4.75M | 0.01% | +11,593+357.6% | Added |
| Aperture Investors, LLC | 14,803 | $4.76M | 0.60% | +3,825+34.8% | Added |
| Arosa Capital Management LP | 15,000 | $4.83M | 3.14% | 00.0% | Unchanged |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 15,000 | $4.83M | 0.03% | +3,000+25.0% | Added |
| NorthCrest Asset Manangement, LLC | 14,375 | $4.83M | 0.15% | −507−3.4% | Reduced |
| Lisanti Capital Growth, LLC | 15,073 | $4.85M | 1.22% | +75+0.5% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 15,368 | $4.94M | 0.03% | +19+0.1% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 15,700 | $5.05M | 0.01% | +15,700 | New |
| Vanguard Investments Australia, Ltd. | 15,887 | $5.11M | 0.01% | +15,887 | New |
| Boothbay Fund Management, LLC | 15,909 | $5.12M | 0.12% | −31,215−66.2% | Reduced |
| Bank of Montreal | 16,060 | $5.17M | 0.00% | +2,667+19.9% | Added |
| Illinois Municipal Retirement Fund | 16,521 | $5.32M | 0.07% | −4,120−20.0% | Reduced |
| Mercer Global Advisors Inc | 16,734 | $5.38M | 0.01% | −1,020−5.7% | Reduced |
| Farallon Capital Management, L.L.C. | 17,000 | $5.47M | 0.03% | +17,000 | New |
| Natixis Advisors, L.P. | 17,078 | $5.50M | 0.01% | +2,241+15.1% | Added |
| Arizona State Retirement System | 17,346 | $5.58M | 0.03% | −248−1.4% | Reduced |
| CIBC World Markets Inc. | 17,350 | $5.58M | 0.01% | −18,701−51.9% | Reduced |
| Thrivent Financial for Lutherans | 17,375 | $5.59M | 0.01% | +893+5.4% | Added |
| American Century Companies Inc | 17,529 | $5.64M | 0.00% | −3,331−16.0% | Reduced |
| Louisiana State Employees Retirement System | 17,800 | $5.73M | 0.10% | +800+4.7% | Added |
| Prudential Financial Inc | 17,919 | $5.77M | 0.01% | −842−4.5% | Reduced |
| Campbell Newman Asset Management Inc | 18,156 | $5.84M | 0.47% | −3,967−17.9% | Reduced |
| SRS Capital Advisors, Inc. | 18,328 | $5.90M | 0.17% | +139+0.8% | Added |
| Tortoise Capital Advisors, L.L.C. | 18,340 | $5.90M | 0.06% | +3,640+24.8% | Added |
| Sheets Smith Wealth Management | 18,406 | $5.92M | 0.67% | −1,342−6.8% | Reduced |
| Mariner, LLC | 18,544 | $5.97M | 0.01% | +509+2.8% | Added |
| Defiance ETFs, LLC | 18,559 | $5.97M | 0.09% | +18,559 | New |
| Partners Capital Investment Group, LLP | 18,630 | $5.99M | 0.23% | −1,993−9.7% | Reduced |
| Yousif Capital Management, LLC | 18,739 | $6.03M | 0.07% | −992−5.0% | Reduced |
| Union Bancaire Privee, UBP SA | 21,850 | $6.06M | 0.11% | +7,804+55.6% | Added |
| Voleon Capital Management LP | 18,928 | $6.09M | 0.13% | −3,598−16.0% | Reduced |
| Teachers Retirement System of the State of Kentucky | 18,962 | $6.10M | 0.05% | +300+1.6% | Added |
| Teacher Retirement System of Texas | 19,344 | $6.22M | 0.03% | +8,094+71.9% | Added |
| Lombard Odier Asset Management (Europe) Ltd | 19,448 | $6.26M | 0.34% | −8,886−31.4% | Reduced |
| 1060 Capital, LLC | 19,700 | $6.34M | 7.70% | +19,700 | New |
| Paradigm Financial Partners, LLC | 19,825 | $6.38M | 1.15% | 00.0% | Unchanged |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 19,825 | $6.38M | 0.01% | +28+0.1% | Added |
| Bokf, NA | 20,001 | $6.44M | 0.10% | −29−0.1% | Reduced |
| Sequoia Financial Advisors, LLC | 20,058 | $6.45M | 0.04% | +3,411+20.5% | Added |
| Needham Investment Management LLC | 20,100 | $6.47M | 0.33% | +20,100 | New |
| Gables Capital Management Inc. | 20,269 | $6.52M | 2.76% | −785−3.7% | Reduced |
| Bouvel Investment Partners, LLC | 20,269 | $6.52M | 1.89% | +714+3.7% | Added |