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, Q2 2026
Institutional positions in Mastec Inc as of Jun 30, 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
- 911
- +110 vs. Q1 2026
- Shares held
- 59.4M
- +1.49M (+2.6%) vs. Q1 2026
- Total value
- $24.7B
- +$6.10B (+32.8%) vs. Q1 2026
- New holders
- 185
- 326 more added
- Sold out
- 75
- 295 more reduced
10 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Mastec Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Nomura Asset Management International Inc. | 58,519 | $24.3M | 0.04% | −279,304−82.7% | Reduced |
| Swedbank AB | 58,600 | $24.4M | 0.02% | 00.0% | Unchanged |
| Danske Bank A/S | 58,959 | $24.5M | 0.05% | +31,595+115.5% | Added |
| Agf Management Ltd | 59,500 | $24.8M | 0.10% | +7,511+14.4% | Added |
| Makena Capital Management LLC | 60,452 | $25.2M | 2.64% | −18,773−23.7% | Reduced |
| Cooper Creek Partners Management LLC | 61,295 | $25.5M | 1.06% | −22,411−26.8% | Reduced |
| Asset Management One Co.,Ltd. | 61,451 | $25.6M | 0.07% | +15,816+34.7% | Added |
| Alliancebernstein L.P. | 80,697 | $26.0M | 0.01% | −5,348−6.2% | Reduced |
| Scopus Asset Management, L.P. | 62,944 | $26.2M | 0.62% | +27,087+75.5% | Added |
| Retirement Systems of Alabama | 63,728 | $26.5M | 0.08% | −11,468−15.3% | Reduced |
| Toroso Investments, LLC | 67,844 | $28.2M | 0.07% | +36,276+114.9% | Added |
| SG Americas Securities, LLC | 68,058 | $28.3M | 0.02% | −70,751−51.0% | Reduced |
| Russell Investments Group, Ltd. | 68,776 | $28.6M | 0.03% | −6,074−8.1% | Reduced |
| Webs Creek Capital Management LP | 70,080 | $29.2M | 5.52% | −31,510−31.0% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 70,661 | $29.4M | 0.02% | +70,501+44,063.1% | Added |
| Schroder Investment Management Group | 72,508 | $30.2M | 0.02% | −72,040−49.8% | Reduced |
| Community Trust & Investment Co | 73,763 | $30.7M | 1.58% | −36,150−32.9% | Reduced |
| Citigroup Inc | 78,536 | $32.7M | 0.02% | +23,352+42.3% | Added |
| Cushing Asset Management, LP | 82,800 | $34.4M | 1.54% | +11,900+16.8% | Added |
| Zimmer Partners, LP | 85,000 | $35.4M | 0.84% | +85,000 | New |
| LGT Group Foundation | 85,310 | $35.5M | 0.40% | +4,141+5.1% | Added |
| HSBC Holdings PLC | 86,514 | $35.9M | 0.02% | +28,144+48.2% | Added |
| ThornTree Capital Partners LP | 87,828 | $36.5M | 5.00% | −24,913−22.1% | Reduced |
| Maplelane Capital, LLC | 88,800 | $36.9M | 1.55% | +88,800 | New |
| California State Teachers Retirement System | 89,451 | $37.2M | 0.03% | +16,447+22.5% | Added |
| KBC Group NV | 91,187 | $37.9M | 0.08% | +89,215+4,524.1% | Added |
| Royal Bank of Canada | 91,680 | $38.1M | 0.01% | +22,706+32.9% | Added |
| LPL Financial LLC | 93,274 | $38.8M | 0.01% | +12,427+15.4% | Added |
| Jennison Associates LLC | 93,701 | $39.0M | 0.02% | −5,785−5.8% | Reduced |
| Samlyn Capital, LLC | 100,636 | $41.9M | 0.69% | −37,444−27.1% | Reduced |
| Envestnet Asset Management Inc | 103,679 | $43.1M | 0.01% | +9,131+9.7% | Added |
| Goodlander Investment Management, LLC | 105,000 | $43.7M | 13.19% | −40,000−27.6% | Reduced |
| Barclays PLC | 108,074 | $45.0M | 0.01% | +42,507+64.8% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 112,100 | $46.6M | 0.07% | +96,400+614.0% | Added |
| SEI Investments Co | 116,639 | $48.5M | 0.04% | +27,530+30.9% | Added |
| Deutsche Bank AG | 118,727 | $49.4M | 0.01% | +52,749+79.9% | Added |
| Wells Fargo & Company | 119,416 | $49.7M | 0.01% | +2,404+2.1% | Added |
| Legacy Advisors, LLC | 124,181 | $51.7M | 4.83% | +30,228+32.2% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 124,282 | $51.7M | 0.03% | +115,210+1,270.0% | Added |
| Two Sigma Investments, LP | 125,069 | $52.0M | 0.04% | +24,743+24.7% | Added |
| Vontobel Holding Ltd. | 125,301 | $52.1M | 0.17% | −55,180−30.6% | Reduced |
| California Public Employees Retirement System | 126,663 | $52.7M | 0.03% | +10,339+8.9% | Added |
| Assenagon Asset Management S.A. | 129,199 | $53.8M | 0.07% | −126,023−49.4% | Reduced |
| Hillman Co | 130,909 | $54.5M | 19.27% | −13,780−9.5% | Reduced |
| Acadian Asset Management LLC | 132,007 | $54.9M | 0.07% | +127,926+3,134.7% | Added |
| Kirr Marbach & Co LLC | 133,726 | $55.6M | 9.37% | −26,471−16.5% | Reduced |
| Newbrook Capital Advisors LP | 134,430 | $55.9M | 7.55% | +21,445+19.0% | Added |
| Lord, Abbett & Co. LLC | 136,849 | $56.9M | 0.16% | −47,425−25.7% | Reduced |
| Quantinno Capital Management LP | 136,950 | $57.0M | 0.07% | +52,563+62.3% | Added |
| Principal Financial Group Inc | 139,227 | $57.9M | 0.03% | +2,076+1.5% | Added |
| Country Trust Bank | 141,500 | $58.9M | 1.03% | +9,849+7.5% | Added |
| Tortoise Capital Advisors, L.L.C. | 143,731 | $59.8M | 0.61% | +125,391+683.7% | Added |
| Gotham Asset Management, LLC | 151,587 | $63.1M | 0.15% | −19,183−11.2% | Reduced |
| OP Asset Management Ltd | 154,952 | $64.5M | 0.69% | −28,380−15.5% | Reduced |
| Point72 Asset Management, L.P. | 156,309 | $65.0M | 0.10% | −276,749−63.9% | Reduced |
| Raymond James Financial Inc | 165,376 | $68.8M | 0.02% | −66,523−28.7% | Reduced |
| Arrowstreet Capital, Limited Partnership | 166,345 | $69.2M | 0.03% | −60,939−26.8% | Reduced |
| Bowen Hanes & Co Inc | 215,465 | $69.3M | 1.69% | 00.0% | Unchanged |
| Swiss National Bank | 172,280 | $71.7M | 0.04% | +46,280+36.7% | Added |
| D. E. Shaw & Co., Inc. | 180,243 | $75.0M | 0.05% | +126,888+237.8% | Added |
| Legal & General Group Plc | 181,874 | $75.7M | 0.02% | +90,012+98.0% | Added |
| Rhumbline Advisers | 188,673 | $78.5M | 0.06% | +20,560+12.2% | Added |
| Nuveen, LLC | 189,055 | $78.7M | 0.02% | +27,514+17.0% | Added |
| Merewether Investment Management, LP | 190,236 | $79.1M | 1.49% | −32,825−14.7% | Reduced |
| Hennessy Advisors Inc | 205,100 | $85.3M | 2.73% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 216,660 | $90.1M | 0.13% | +113,755+110.5% | Added |
| Clearbridge Investments, LLC | 218,591 | $90.9M | 0.08% | +218,591 | New |
| Bessemer Group Inc | 230,471 | $95.9M | 0.13% | −1,494−0.6% | Reduced |
| Freestone Grove Partners LP | 246,593 | $102.6M | 0.67% | +26,193+11.9% | Added |
| Forest Avenue Capital Management LP | 248,627 | $103.4M | 4.34% | −21,224−7.9% | Reduced |
| 140 Summer Partners LP | 268,168 | $111.6M | 9.04% | −61,052−18.5% | Reduced |
| Price T Rowe Associates Inc | 282,436 | $117.5M | 0.01% | +221,629+364.5% | Added |
| Third Point LLCSuperinvestorThird Point | 290,000 | $120.7M | 2.59% | −30,000−9.4% | Reduced |
| Anomaly Capital Management, LP | 306,921 | $127.7M | 4.88% | +82,423+36.7% | Added |
| Westfield Capital Management Co LP | 374,457 | $155.8M | 0.51% | +124,477+49.8% | Added |
| Amundi | 399,102 | $166.1M | 0.04% | +227,515+132.6% | Added |
| Vanguard Fiduciary Trust Co | 399,194 | $166.1M | 0.04% | +15,377+4.0% | Added |
| UBS Asset Management Americas Inc | 403,709 | $168.0M | 0.03% | +87,560+27.7% | Added |
| Qube Research & Technologies Ltd | 409,202 | $170.3M | 0.19% | −76,183−15.7% | Reduced |
| BNP Paribas Arbitrage, SA | 436,602 | $181.7M | 0.09% | +123,219+39.3% | Added |
| UBS Group AG | 509,843 | $212.1M | 0.03% | +128,728+33.8% | Added |
| Coatue Management LLCSuperinvestorCoatue Management | 517,250 | $215.2M | 0.44% | −66,347−11.4% | Reduced |
| Northern Trust Corp | 517,643 | $215.4M | 0.03% | +45,060+9.5% | Added |
| Nordea Investment Management AB | 529,463 | $225.5M | 0.18% | −204,165−27.8% | Reduced |
| Goldman Sachs Group Inc | 542,636 | $225.8M | 0.02% | +68,122+14.4% | Added |
| Charles Schwab Investment Management Inc | 551,319 | $229.4M | 0.03% | +40,076+7.8% | Added |
| T. Rowe Price Investment Management, Inc. | 593,724 | $247.0M | 0.16% | +593,724 | New |
| Canada Pension Plan Investment Board | 619,910 | $257.9M | 0.14% | −19,054−3.0% | Reduced |
| Electron Capital Partners, LLC | 620,190 | $258.0M | 10.30% | −92,823−13.0% | Reduced |
| Dimensional Fund Advisors LP | 636,286 | $264.8M | 0.05% | −95,364−13.0% | Reduced |
| Morgan Stanley | 653,503 | $271.9M | 0.01% | +66,760+11.4% | Added |
| AQR Capital Management LLC | 657,603 | $273.6M | 0.10% | −2,451−0.4% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 660,440 | $274.8M | 0.33% | +55,763+9.2% | Added |
| Bank of New York Mellon Corp | 674,288 | $280.5M | 0.05% | +18,184+2.8% | Added |
| Ameriprise Financial Inc | 734,976 | $305.8M | 0.06% | +503,180+217.1% | Added |
| FMR LLC | 890,103 | $370.3M | 0.02% | +262,202+41.8% | Added |
| Hood River Capital Management LLC | 1,173,918 | $488.4M | 3.54% | −121,467−9.4% | Reduced |
| Victory Capital Management Inc | 1,210,079 | $503.5M | 0.28% | −382,444−24.0% | Reduced |
| Invesco Ltd. | 1,241,384 | $516.5M | 0.04% | +15,627+1.3% | Added |
| Geode Capital Management, LLC | 1,278,139 | $530.4M | 0.03% | −93,770−6.8% | Reduced |