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 |
|---|---|---|---|---|---|
| Assenagon Asset Management S.A. | 197,097 | $41.9M | 0.06% | −84,074−29.9% | Reduced |
| Gotham Asset Management, LLC | 211,350 | $45.0M | 0.20% | −23,555−10.0% | Reduced |
| JPMorgan Chase & Co | 211,695 | $45.1M | 0.00% | −169,315−44.4% | Reduced |
| Orbis Allan Gray Ltd | 226,799 | $48.3M | 0.21% | −12,608−5.3% | Reduced |
| Amundi | 225,194 | $48.8M | 0.02% | +222,560+8,449.5% | Added |
| Hennessy Advisors Inc | 239,200 | $50.9M | 1.76% | +239,200 | New |
| Russell Investments Group, Ltd. | 239,380 | $50.9M | 0.06% | +133,420+125.9% | Added |
| Manufacturers Life Insurance Company, The | 246,978 | $52.6M | 0.04% | −84,078−25.4% | Reduced |
| Jennison Associates LLC | 249,259 | $53.0M | 0.03% | +167,429+204.6% | Added |
| DnB Asset Management AS | 280,566 | $59.7M | 0.22% | −83,982−23.0% | Reduced |
| Raymond James Financial Inc | 288,531 | $61.4M | 0.02% | +13,023+4.7% | Added |
| BNP Paribas Arbitrage, SA | 299,018 | $63.6M | 0.05% | +239,341+401.1% | Added |
| UBS Asset Management Americas Inc | 308,557 | $65.7M | 0.01% | −4,943−1.6% | Reduced |
| Samlyn Capital, LLC | 319,729 | $68.0M | 0.97% | −62,848−16.4% | Reduced |
| Blackstone Group Inc. | 320,000 | $68.1M | 0.29% | −30,000−8.6% | Reduced |
| Goldman Sachs Group Inc | 324,276 | $69.0M | 0.01% | −499,314−60.6% | Reduced |
| Lord, Abbett & Co. LLC | 335,680 | $71.4M | 0.21% | +924+0.3% | Added |
| Legacy Advisors, LLC | 380,708 | $81.0M | 10.01% | +271,013+247.1% | Added |
| 140 Summer Partners LP | 383,038 | $81.5M | 7.22% | +383,038 | New |
| Qube Research & Technologies Ltd | 403,902 | $86.0M | 0.12% | −102,955−20.3% | Reduced |
| Balyasny Asset Management LLC | 419,303 | $89.2M | 0.18% | +73,467+21.2% | Added |
| Forest Avenue Capital Management LP | 421,874 | $89.8M | 6.74% | +421,874 | New |
| FMR LLC | 465,604 | $99.1M | 0.01% | +460,535+9,085.3% | Added |
| Morgan Stanley | 468,271 | $99.7M | 0.01% | −60,670−11.5% | Reduced |
| Northern Trust Corp | 472,603 | $100.6M | 0.01% | −7,597−1.6% | Reduced |
| Charles Schwab Investment Management Inc | 489,838 | $104.2M | 0.02% | −122,649−20.0% | Reduced |
| UBS Group AG | 507,510 | $108.0M | 0.02% | −144,053−22.1% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 542,073 | $115.4M | 0.18% | +16,161+3.1% | Added |
| Bank of New York Mellon Corp | 582,397 | $123.9M | 0.02% | +30,353+5.5% | Added |
| Ameriprise Financial Inc | 610,841 | $130.0M | 0.03% | +55,355+10.0% | Added |
| Macquarie Group Ltd | 615,973 | $131.1M | 0.15% | −80,803−11.6% | Reduced |
| Point72 Asset Management, L.P. | 658,201 | $140.1M | 0.30% | −237,304−26.5% | Reduced |
| Freestone Grove Partners LP | 678,305 | $144.4M | 1.08% | +42,689+6.7% | Added |
| Third Point LLCSuperinvestorThird Point | 725,000 | $154.3M | 1.84% | +725,000 | New |
| Jacobs Levy Equity Management, Inc | 732,886 | $156.0M | 0.62% | +304,358+71.0% | Added |
| Peconic Partners LLC | 750,000 | $159.6M | 4.41% | +750,000 | New |
| Electron Capital Partners, LLC | 819,091 | $174.3M | 7.90% | +71,758+9.6% | Added |
| Millennium Management LLC | 833,402 | $177.4M | 0.14% | −244,420−22.7% | Reduced |
| Bank of America Corp | 846,127 | $180.1M | 0.01% | +183,386+27.7% | Added |
| Merewether Investment Management, LP | 867,240 | $184.6M | 4.42% | +324,500+59.8% | Added |
| AQR Capital Management LLC | 900,484 | $189.2M | 0.12% | −171,769−16.0% | Reduced |
| Dimensional Fund Advisors LP | 935,004 | $199.0M | 0.04% | −170,394−15.4% | Reduced |
| Victory Capital Management Inc | 946,555 | $201.3M | 0.13% | +936,747+9,550.8% | Added |
| First Trust Advisors LP | 1,022,175 | $217.5M | 0.16% | +350,228+52.1% | Added |
| Geode Capital Management, LLC | 1,126,359 | $239.7M | 0.02% | +24,080+2.2% | Added |
| Nordea Investment Management AB | 1,342,023 | $283.3M | 0.25% | −36,207−2.6% | Reduced |
| Hood River Capital Management LLC | 1,646,425 | $350.4M | 4.14% | −46,231−2.7% | Reduced |
| Invesco Ltd. | 1,664,401 | $354.2M | 0.06% | −100,648−5.7% | Reduced |
| State Street Corp | 1,837,151 | $391.0M | 0.01% | −36,380−1.9% | Reduced |
| Hill City Capital, LP | 2,155,000 | $458.6M | 19.39% | 00.0% | Unchanged |
| Vanguard Group Inc | 6,007,192 | $1.28B | 0.02% | +34,899+0.6% | Added |
| BlackRock, Inc. | 7,743,365 | $1.65B | 0.03% | −420,802−5.2% | Reduced |
| Cartenna Capital, LP | 0 | $0 | 0.00% | −300,000−100.0% | Sold out |
| Toronto Dominion Bank | 0 | $0 | 0.00% | −125,097−100.0% | Sold out |
| ACK Asset Management LLC | 0 | $0 | 0.00% | −125,000−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −79,456−100.0% | Sold out |
| Temasek Holdings (Private) Ltd | 0 | $0 | 0.00% | −70,988−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −66,323−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −64,366−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −56,254−100.0% | Sold out |
| Covalis Capital LLP | 0 | $0 | 0.00% | −55,517−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −55,166−100.0% | Sold out |
| Point72 Europe (London) LLP | 0 | $0 | 0.00% | −54,417−100.0% | Sold out |
| SG Capital Management LLC | 0 | $0 | 0.00% | −50,012−100.0% | Sold out |
| Bridge City Capital, LLC | 0 | $0 | 0.00% | −49,357−100.0% | Sold out |
| Appian Way Asset Management LP | 0 | $0 | 0.00% | −32,147−100.0% | Sold out |
| Bridgewater Associates, LP | 0 | $0 | 0.00% | −30,680−100.0% | Sold out |
| AXA S.A. | 0 | $0 | 0.00% | −26,038−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −24,460−100.0% | Sold out |
| Decade Renewable Partners LP | 0 | $0 | 0.00% | −22,723−100.0% | Sold out |
| Fieldview Capital Management, LLC | 0 | $0 | 0.00% | −18,485−100.0% | Sold out |
| Boston Partners | 0 | $0 | 0.00% | −17,587−100.0% | Sold out |
| Sagefield Capital LP | 0 | $0 | 0.00% | −12,073−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −11,394−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −11,327−100.0% | Sold out |
| Lecap Asset Management Ltd | 0 | $0 | 0.00% | −11,314−100.0% | Sold out |
| FORA Capital, LLC | 0 | $0 | 0.00% | −10,074−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −9,785−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −7,910−100.0% | Sold out |
| Arista Wealth Management, LLC | 0 | $0 | 0.00% | −7,389−100.0% | Sold out |
| Ausbil Investment Management Ltd | 0 | $0 | 0.00% | −6,496−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −5,845−100.0% | Sold out |
| Holocene Advisors, LP | 0 | $0 | 0.00% | −5,592−100.0% | Sold out |
| Point72 (DIFC) Ltd | 0 | $0 | 0.00% | −5,573−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −5,073−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −5,071−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −5,068−100.0% | Sold out |
| Sciencast Management LP | 0 | $0 | 0.00% | −5,053−100.0% | Sold out |
| Vinva Investment Management Ltd | 0 | $0 | 0.00% | −2,884−100.0% | Sold out |
| Counterpoint Mutual Funds LLC | 0 | $0 | 0.00% | −4,410−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −4,389−100.0% | Sold out |
| Quantitative Investment Management, LLC | 0 | $0 | 0.00% | −4,241−100.0% | Sold out |
| World Equity Group, Inc. | 0 | $0 | 0.00% | −4,142−100.0% | Sold out |
| MONECO Advisors, LLC | 0 | $0 | 0.00% | −3,479−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −3,020−100.0% | Sold out |
| Hartree Partners, LP | 0 | $0 | 0.00% | −3,000−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −2,876−100.0% | Sold out |
| QRG Capital Management, Inc. | 0 | $0 | 0.00% | −2,593−100.0% | Sold out |
| Maven Securities LTD | 0 | $0 | 0.00% | −2,280−100.0% | Sold out |
| Scientech Research LLC | 0 | $0 | 0.00% | −2,058−100.0% | Sold out |