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 |
|---|---|---|---|---|---|
| TCW Group Inc | 23,720 | $7.63M | 0.06% | +4,425+22.9% | Added |
| Mutual of America Capital Management LLC | 23,505 | $7.56M | 0.09% | −2,022−7.9% | Reduced |
| Hodges Capital Management Inc. | 23,449 | $7.54M | 0.62% | −2,627−10.1% | Reduced |
| Intrinsic Edge Capital Management LLC | 22,257 | $7.16M | 1.30% | −22,000−49.7% | Reduced |
| Ci Investments Inc. | 22,202 | $7.14M | 0.03% | +13,302+149.5% | Added |
| LGT Fund Management Co Ltd. | 22,065 | $7.10M | 0.31% | +22,065 | New |
| Navellier & Associates Inc | 21,409 | $6.89M | 0.72% | +19,464+1,000.7% | Added |
| Handelsbanken Fonder AB | 21,000 | $6.76M | 0.02% | +3,100+17.3% | Added |
| Pathstone Holdings, LLC | 20,979 | $6.75M | 0.03% | −886−4.1% | Reduced |
| State of New Jersey Common Pension Fund D | 20,586 | $6.62M | 0.03% | 00.0% | Unchanged |
| Cetera Investment Advisers | 20,273 | $6.52M | 0.01% | +1,983+10.8% | Added |
| 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 |
| Needham Investment Management LLC | 20,100 | $6.47M | 0.33% | +20,100 | New |
| Sequoia Financial Advisors, LLC | 20,058 | $6.45M | 0.04% | +3,411+20.5% | Added |
| Bokf, NA | 20,001 | $6.44M | 0.10% | −29−0.1% | Reduced |
| 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 |
| 1060 Capital, LLC | 19,700 | $6.34M | 7.70% | +19,700 | New |
| Lombard Odier Asset Management (Europe) Ltd | 19,448 | $6.26M | 0.34% | −8,886−31.4% | Reduced |
| Teacher Retirement System of Texas | 19,344 | $6.22M | 0.03% | +8,094+71.9% | Added |
| Teachers Retirement System of the State of Kentucky | 18,962 | $6.10M | 0.05% | +300+1.6% | Added |
| Voleon Capital Management LP | 18,928 | $6.09M | 0.13% | −3,598−16.0% | Reduced |
| Union Bancaire Privee, UBP SA | 21,850 | $6.06M | 0.11% | +7,804+55.6% | Added |
| Yousif Capital Management, LLC | 18,739 | $6.03M | 0.07% | −992−5.0% | Reduced |
| Partners Capital Investment Group, LLP | 18,630 | $5.99M | 0.23% | −1,993−9.7% | Reduced |
| Defiance ETFs, LLC | 18,559 | $5.97M | 0.09% | +18,559 | New |
| Mariner, LLC | 18,544 | $5.97M | 0.01% | +509+2.8% | Added |
| Sheets Smith Wealth Management | 18,406 | $5.92M | 0.67% | −1,342−6.8% | Reduced |
| Tortoise Capital Advisors, L.L.C. | 18,340 | $5.90M | 0.06% | +3,640+24.8% | Added |
| SRS Capital Advisors, Inc. | 18,328 | $5.90M | 0.17% | +139+0.8% | Added |
| Campbell Newman Asset Management Inc | 18,156 | $5.84M | 0.47% | −3,967−17.9% | Reduced |
| Prudential Financial Inc | 17,919 | $5.77M | 0.01% | −842−4.5% | Reduced |
| Louisiana State Employees Retirement System | 17,800 | $5.73M | 0.10% | +800+4.7% | Added |
| American Century Companies Inc | 17,529 | $5.64M | 0.00% | −3,331−16.0% | Reduced |
| Thrivent Financial for Lutherans | 17,375 | $5.59M | 0.01% | +893+5.4% | Added |
| CIBC World Markets Inc. | 17,350 | $5.58M | 0.01% | −18,701−51.9% | Reduced |
| Arizona State Retirement System | 17,346 | $5.58M | 0.03% | −248−1.4% | Reduced |
| Natixis Advisors, L.P. | 17,078 | $5.50M | 0.01% | +2,241+15.1% | Added |
| Farallon Capital Management, L.L.C. | 17,000 | $5.47M | 0.03% | +17,000 | New |
| Mercer Global Advisors Inc | 16,734 | $5.38M | 0.01% | −1,020−5.7% | Reduced |
| Illinois Municipal Retirement Fund | 16,521 | $5.32M | 0.07% | −4,120−20.0% | Reduced |
| Bank of Montreal | 16,060 | $5.17M | 0.00% | +2,667+19.9% | Added |
| Boothbay Fund Management, LLC | 15,909 | $5.12M | 0.12% | −31,215−66.2% | Reduced |
| Vanguard Investments Australia, Ltd. | 15,887 | $5.11M | 0.01% | +15,887 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 15,700 | $5.05M | 0.01% | +15,700 | New |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 15,368 | $4.94M | 0.03% | +19+0.1% | Added |
| Lisanti Capital Growth, LLC | 15,073 | $4.85M | 1.22% | +75+0.5% | Added |
| NorthCrest Asset Manangement, LLC | 14,375 | $4.83M | 0.15% | −507−3.4% | Reduced |
| 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 |
| Aperture Investors, LLC | 14,803 | $4.76M | 0.60% | +3,825+34.8% | Added |
| CI Private Wealth, LLC | 14,835 | $4.75M | 0.01% | +11,593+357.6% | Added |
| State of Michigan Retirement System | 14,739 | $4.74M | 0.03% | +200+1.4% | Added |
| New Age Alpha Advisors, LLC | 14,567 | $4.69M | 0.22% | −270−1.8% | Reduced |
| First National Bank of Omaha | 14,498 | $4.66M | 0.14% | −6,150−29.8% | Reduced |
| US Bancorp | 14,436 | $4.64M | 0.01% | −6,982−32.6% | Reduced |
| Creative Planning | 14,357 | $4.62M | 0.00% | +2,090+17.0% | Added |
| Prevail Innovative Wealth Advisors, LLC | 14,228 | $4.58M | 0.77% | −3,362−19.1% | Reduced |
| KLP Kapitalforvaltning AS | 14,200 | $4.57M | 0.02% | +400+2.9% | Added |
| Credit Agricole S A | 13,846 | $4.45M | 0.01% | 00.0% | Unchanged |
| First National Advisers, LLC | 13,744 | $4.42M | 0.65% | −8,395−37.9% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 13,742 | $4.42M | 0.07% | +19+0.1% | Added |
| Calamos Advisors LLC | 13,527 | $4.35M | 0.02% | +3,886+40.3% | Added |
| Richard Bernstein Advisors LLC | 13,515 | $4.35M | 0.13% | +13,515 | New |
| Dymon Asia Capital (Singapore) Pte. Ltd. | 13,031 | $4.19M | 0.92% | −1,900−12.7% | Reduced |
| Farrow Financial Inc. | 13,029 | $4.19M | 2.38% | −1,533−10.5% | Reduced |
| Longaeva Partners L.P. | 13,014 | $4.19M | 0.20% | +13,014 | New |
| Fidelis Capital Partners, LLC | 12,804 | $4.12M | 0.29% | +852+7.1% | Added |
| Atom Investors LP | 12,713 | $4.09M | 0.29% | +3,899+44.2% | Added |
| Oregon Public Employees Retirement Fund | 12,609 | $4.06M | 0.05% | +394+3.2% | Added |
| Arete Wealth Advisors, LLC | 12,297 | $3.94M | 0.30% | +12,297 | New |
| New Mexico Educational Retirement Board | 12,100 | $3.89M | 0.12% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 12,066 | $3.88M | 0.01% | −55,290−82.1% | Reduced |
| Susquehanna International Group, LLP | 11,978 | $3.85M | 0.00% | +11,978 | New |
| Oliver Luxxe Assets LLC | 11,938 | $3.84M | 0.58% | −4,487−27.3% | Reduced |
| DnB Asset Management AS | 11,498 | $3.70M | 0.01% | +11,498 | New |
| Monument Capital Management | 11,352 | $3.65M | 0.92% | +11,352 | New |
| Ameritas Investment Partners, Inc. | 11,300 | $3.64M | 0.11% | +59+0.5% | Added |
| Hudson Bay Capital Management LP | 11,096 | $3.57M | 0.02% | +5,033+83.0% | Added |
| Walleye Trading LLC | 11,081 | $3.57M | 0.07% | +9,634+665.8% | Added |
| VestGen Advisors, LLC | 8,389 | $3.53M | 0.10% | +8,389 | New |
| Caisse de Depot Et Placement du Quebec | 10,800 | $3.47M | 0.01% | −5,700−34.5% | Reduced |
| Colony Group, LLC | 10,665 | $3.43M | 0.00% | +1,040+10.8% | Added |
| Engineers Gate Manager LP | 10,516 | $3.38M | 0.04% | +3,666+53.5% | Added |
| Ritholtz Wealth Management | 10,424 | $3.35M | 0.06% | −925−8.2% | Reduced |
| Catalyst Funds Management Pty Ltd | 10,390 | $3.34M | 0.57% | +10,390 | New |
| Pictet Asset Management Holding SA | 10,177 | $3.27M | 0.00% | +700+7.4% | Added |
| Williamson Legacy Group, LLC | 10,108 | $3.25M | 2.44% | +4,147+69.6% | Added |
| Huntleigh Advisors, Inc. | 10,004 | $3.22M | 0.55% | +131+1.3% | Added |
| Freemont Management S.A. | 10,000 | $3.22M | 0.60% | −1,000−9.1% | Reduced |
| IFP Advisors, Inc | 9,838 | $3.17M | 0.07% | −1,201−10.9% | Reduced |
| Xponance, Inc. | 9,487 | $3.05M | 0.02% | +1,558+19.6% | Added |
| Gallo Partners, LP | 9,472 | $3.05M | 5.83% | +9,472 | New |
| Man Group plc | 9,375 | $3.02M | 0.01% | −11,279−54.6% | Reduced |
| HighTower Advisors, LLC | 9,344 | $3.01M | 0.00% | +2,166+30.2% | Added |
| Ninepoint Partners LP | 9,334 | $3.00M | 0.36% | +834+9.8% | Added |
| Leavell Investment Management, Inc. | 9,300 | $2.99M | 0.12% | +2,050+28.3% | Added |
| Cookson Peirce & Co Inc | 9,263 | $2.98M | 0.13% | +379+4.3% | Added |
| Altshuler Shaham Ltd | 9,223 | $2.97M | 0.05% | +3,983+76.0% | Added |