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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 7,743,365 | $1.65B | 0.03% | −420,802−5.2% | Reduced |
| Vanguard Group Inc | 6,007,192 | $1.28B | 0.02% | +34,899+0.6% | Added |
| Hill City Capital, LP | 2,155,000 | $458.6M | 19.39% | 00.0% | Unchanged |
| State Street Corp | 1,837,151 | $391.0M | 0.01% | −36,380−1.9% | Reduced |
| Invesco Ltd. | 1,664,401 | $354.2M | 0.06% | −100,648−5.7% | Reduced |
| Hood River Capital Management LLC | 1,646,425 | $350.4M | 4.14% | −46,231−2.7% | Reduced |
| Nordea Investment Management AB | 1,342,023 | $283.3M | 0.25% | −36,207−2.6% | Reduced |
| Geode Capital Management, LLC | 1,126,359 | $239.7M | 0.02% | +24,080+2.2% | Added |
| First Trust Advisors LP | 1,022,175 | $217.5M | 0.16% | +350,228+52.1% | Added |
| Victory Capital Management Inc | 946,555 | $201.3M | 0.13% | +936,747+9,550.8% | Added |
| Dimensional Fund Advisors LP | 935,004 | $199.0M | 0.04% | −170,394−15.4% | Reduced |
| AQR Capital Management LLC | 900,484 | $189.2M | 0.12% | −171,769−16.0% | Reduced |
| Merewether Investment Management, LP | 867,240 | $184.6M | 4.42% | +324,500+59.8% | Added |
| Bank of America Corp | 846,127 | $180.1M | 0.01% | +183,386+27.7% | Added |
| Millennium Management LLC | 833,402 | $177.4M | 0.14% | −244,420−22.7% | Reduced |
| Electron Capital Partners, LLC | 819,091 | $174.3M | 7.90% | +71,758+9.6% | Added |
| Peconic Partners LLC | 750,000 | $159.6M | 4.41% | +750,000 | New |
| Jacobs Levy Equity Management, Inc | 732,886 | $156.0M | 0.62% | +304,358+71.0% | Added |
| Third Point LLCSuperinvestorThird Point | 725,000 | $154.3M | 1.84% | +725,000 | New |
| Freestone Grove Partners LP | 678,305 | $144.4M | 1.08% | +42,689+6.7% | Added |
| Point72 Asset Management, L.P. | 658,201 | $140.1M | 0.30% | −237,304−26.5% | Reduced |
| Macquarie Group Ltd | 615,973 | $131.1M | 0.15% | −80,803−11.6% | Reduced |
| Ameriprise Financial Inc | 610,841 | $130.0M | 0.03% | +55,355+10.0% | Added |
| Bank of New York Mellon Corp | 582,397 | $123.9M | 0.02% | +30,353+5.5% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 542,073 | $115.4M | 0.18% | +16,161+3.1% | Added |
| UBS Group AG | 507,510 | $108.0M | 0.02% | −144,053−22.1% | Reduced |
| Charles Schwab Investment Management Inc | 489,838 | $104.2M | 0.02% | −122,649−20.0% | Reduced |
| Northern Trust Corp | 472,603 | $100.6M | 0.01% | −7,597−1.6% | Reduced |
| Morgan Stanley | 468,271 | $99.7M | 0.01% | −60,670−11.5% | Reduced |
| FMR LLC | 465,604 | $99.1M | 0.01% | +460,535+9,085.3% | Added |
| Forest Avenue Capital Management LP | 421,874 | $89.8M | 6.74% | +421,874 | New |
| Balyasny Asset Management LLC | 419,303 | $89.2M | 0.18% | +73,467+21.2% | Added |
| Qube Research & Technologies Ltd | 403,902 | $86.0M | 0.12% | −102,955−20.3% | Reduced |
| 140 Summer Partners LP | 383,038 | $81.5M | 7.22% | +383,038 | New |
| Legacy Advisors, LLC | 380,708 | $81.0M | 10.01% | +271,013+247.1% | Added |
| Lord, Abbett & Co. LLC | 335,680 | $71.4M | 0.21% | +924+0.3% | Added |
| Goldman Sachs Group Inc | 324,276 | $69.0M | 0.01% | −499,314−60.6% | Reduced |
| Blackstone Group Inc. | 320,000 | $68.1M | 0.29% | −30,000−8.6% | Reduced |
| Samlyn Capital, LLC | 319,729 | $68.0M | 0.97% | −62,848−16.4% | Reduced |
| UBS Asset Management Americas Inc | 308,557 | $65.7M | 0.01% | −4,943−1.6% | Reduced |
| BNP Paribas Arbitrage, SA | 299,018 | $63.6M | 0.05% | +239,341+401.1% | Added |
| Raymond James Financial Inc | 288,531 | $61.4M | 0.02% | +13,023+4.7% | Added |
| DnB Asset Management AS | 280,566 | $59.7M | 0.22% | −83,982−23.0% | Reduced |
| Jennison Associates LLC | 249,259 | $53.0M | 0.03% | +167,429+204.6% | Added |
| Manufacturers Life Insurance Company, The | 246,978 | $52.6M | 0.04% | −84,078−25.4% | Reduced |
| Russell Investments Group, Ltd. | 239,380 | $50.9M | 0.06% | +133,420+125.9% | Added |
| Hennessy Advisors Inc | 239,200 | $50.9M | 1.76% | +239,200 | New |
| Amundi | 225,194 | $48.8M | 0.02% | +222,560+8,449.5% | Added |
| Orbis Allan Gray Ltd | 226,799 | $48.3M | 0.21% | −12,608−5.3% | Reduced |
| JPMorgan Chase & Co | 211,695 | $45.1M | 0.00% | −169,315−44.4% | Reduced |
| Gotham Asset Management, LLC | 211,350 | $45.0M | 0.20% | −23,555−10.0% | Reduced |
| Assenagon Asset Management S.A. | 197,097 | $41.9M | 0.06% | −84,074−29.9% | Reduced |
| Vontobel Holding Ltd. | 196,809 | $41.9M | 0.13% | −1,247−0.6% | Reduced |
| Walleye Capital LLC | 195,149 | $41.5M | 0.34% | +78,689+67.6% | Added |
| Canada Pension Plan Investment Board | 194,515 | $41.4M | 0.03% | +6,790+3.6% | Added |
| Country Trust Bank | 193,337 | $41.1M | 0.90% | −78,087−28.8% | Reduced |
| D. E. Shaw & Co., Inc. | 190,868 | $40.6M | 0.03% | −149,232−43.9% | Reduced |
| Wolf Hill Capital Management, LP | 187,532 | $39.9M | 3.81% | +12,532+7.2% | Added |
| Arrowstreet Capital, Limited Partnership | 186,024 | $39.6M | 0.02% | −178,254−48.9% | Reduced |
| Goodlander Investment Management, LLC | 181,000 | $38.5M | 14.69% | −19,000−9.5% | Reduced |
| Nuveen, LLC | 176,218 | $37.5M | 0.01% | +4,233+2.5% | Added |
| Principal Financial Group Inc | 175,814 | $37.4M | 0.02% | −56,455−24.3% | Reduced |
| Kirr Marbach & Co LLC | 169,782 | $36.1M | 6.52% | −1,849−1.1% | Reduced |
| Rhumbline Advisers | 168,256 | $35.8M | 0.03% | −2,546−1.5% | Reduced |
| Lazard Asset Management LLC | 159,950 | $34.0M | 0.05% | +85,305+114.3% | Added |
| OP Asset Management Ltd | 155,578 | $33.1M | 0.44% | +135,915+691.2% | Added |
| Community Trust & Investment Co | 144,667 | $30.8M | 1.66% | −3,818−2.6% | Reduced |
| SIR Capital Management, L.P. | 134,788 | $28.7M | 2.57% | +64,400+91.5% | Added |
| Schroder Investment Management Group | 131,787 | $28.0M | 0.02% | +59,228+81.6% | Added |
| Squarepoint Ops LLC | 131,671 | $28.0M | 0.06% | +85,256+183.7% | Added |
| Wells Fargo & Company | 129,265 | $27.5M | 0.01% | +30,179+30.5% | Added |
| Alliancebernstein L.P. | 125,586 | $26.7M | 0.01% | −145,631−53.7% | Reduced |
| Barclays PLC | 125,463 | $26.7M | 0.01% | −18,223−12.7% | Reduced |
| Mackenzie Financial Corp | 125,405 | $26.7M | 0.03% | −12,000−8.7% | Reduced |
| Swiss National Bank | 122,300 | $26.0M | 0.02% | +1,500+1.2% | Added |
| Makena Capital Management LLC | 122,085 | $26.0M | 2.68% | −29,721−19.6% | Reduced |
| Cooper Creek Partners Management LLC | 120,572 | $25.7M | 0.96% | −303,346−71.6% | Reduced |
| Algert Global LLC | 119,304 | $25.4M | 0.42% | +55,168+86.0% | Added |
| LPL Financial LLC | 118,291 | $25.2M | 0.01% | +12,522+11.8% | Added |
| California Public Employees Retirement System | 117,390 | $25.0M | 0.01% | +6,253+5.6% | Added |
| Royal Bank of Canada | 117,281 | $25.0M | 0.00% | +35,438+43.3% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 115,009 | $24.5M | 0.06% | −8,237−6.7% | Reduced |
| SEI Investments Co | 113,856 | $24.2M | 0.03% | +18,007+18.8% | Added |
| Muhlenkamp & Co Inc | 105,786 | $22.5M | 6.12% | −298−0.3% | Reduced |
| Aventail Capital Group, LP | 104,731 | $22.3M | 1.06% | +104,731 | New |
| Hillman Co | 104,216 | $22.2M | 6.85% | +104,216 | New |
| Maplelane Capital, LLC | 101,000 | $21.5M | 1.03% | +101,000 | New |
| Legal & General Group Plc | 99,300 | $21.1M | 0.00% | −3,937−3.8% | Reduced |
| Driehaus Capital Management LLC | 97,863 | $20.8M | 0.15% | +97,863 | New |
| 1832 Asset Management L.P. | 94,500 | $20.1M | 0.03% | +94,500 | New |
| Daiwa Securities Group Inc. | 89,547 | $19.1M | 0.06% | −3,253−3.5% | Reduced |
| State of Wisconsin Investment Board | 81,936 | $17.4M | 0.04% | −11,589−12.4% | Reduced |
| Moran Wealth Management, LLC | 74,452 | $15.8M | 0.48% | −4,541−5.7% | Reduced |
| Retirement Systems of Alabama | 74,125 | $15.8M | 0.05% | −807−1.1% | Reduced |
| Moore Capital Management, LP | 72,393 | $15.4M | 0.31% | +21,018+40.9% | Added |
| SRS Capital Advisors, Inc. | 71,773 | $15.3M | 0.22% | +71,547+31,658.0% | Added |
| Verition Fund Management LLC | 70,524 | $15.0M | 0.09% | −45,537−39.2% | Reduced |
| Candriam Luxembourg S.C.A. | 69,307 | $14.7M | 0.08% | −95,190−57.9% | Reduced |
| Asset Management One Co.,Ltd. | 69,024 | $14.7M | 0.04% | +29,439+74.4% | Added |
| Ieq Capital, LLC | 68,708 | $14.6M | 0.04% | +21,416+45.3% | Added |