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 $24.8B 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
- 59.6M
- +1.65M (+2.8%) vs. Q1 2026
- Total value
- $24.8B
- +$6.17B (+33.1%) vs. Q1 2026
- New holders
- 185
- 328 more added
- Sold out
- 75
- 293 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 | $24.8B |
| Q1 2026 | 811 | $18.6B |
| Q4 2025 | 695 | $12.8B |
| Q3 2025 | 652 | $12.2B |
| Q2 2025 | 594 | $9.52B |
| Q1 2025 | 523 | $6.57B |
| Q4 2024 | 532 | $7.89B |
| Q3 2024 | 470 | $7.16B |
| Q2 2024 | 430 | $6.41B |
| Q1 2024 | 382 | $5.66B |
| Q4 2023 | 368 | $4.76B |
| Q3 2023 | 382 | $4.11B |
| Q2 2023 | 393 | $6.85B |
| Q1 2023 | 394 | $5.55B |
| Q4 2022 | 386 | $4.98B |
| Q3 2022 | 338 | $3.54B |
| Q2 2022 | 356 | $3.91B |
| Q1 2022 | 388 | $4.74B |
| Q4 2021 | 388 | $4.78B |
| Q3 2021 | 366 | $4.53B |
| Q2 2021 | 415 | $5.78B |
| 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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 7,638,487 | $3.18B | 0.05% | +328,878+4.5% | Added |
| Peconic Partners LLC | 3,678,431 | $1.53B | 20.35% | +100,000+2.8% | Added |
| Vanguard Capital Management LLC | 2,831,849 | $1.18B | 0.03% | +27,554+1.0% | Added |
| Vanguard Portfolio Management LLC | 2,812,131 | $1.17B | 0.05% | +42,093+1.5% | Added |
| State Street Corp | 2,244,771 | $934.0M | 0.03% | +374,983+20.1% | Added |
| Hill City Capital, LP | 2,155,000 | $896.6M | 20.94% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 1,318,161 | $566.8M | 0.03% | +1,116,159+552.5% | Added |
| Lone Pine Capital LLCSuperinvestorLone Pine Capital | 1,345,157 | $559.7M | 3.42% | −185,893−12.1% | Reduced |
| Bank of America Corp | 1,335,924 | $555.8M | 0.04% | +5,858+0.4% | Added |
| First Trust Advisors LP | 1,328,399 | $552.7M | 0.33% | −83,185−5.9% | Reduced |
| Geode Capital Management, LLC | 1,278,139 | $530.4M | 0.03% | −93,770−6.8% | Reduced |
| Invesco Ltd. | 1,241,384 | $516.5M | 0.04% | +15,627+1.3% | Added |
| Victory Capital Management Inc | 1,210,079 | $503.5M | 0.28% | −382,444−24.0% | Reduced |
| Hood River Capital Management LLC | 1,173,918 | $488.4M | 3.54% | −121,467−9.4% | Reduced |
| FMR LLC | 890,103 | $370.3M | 0.02% | +262,202+41.8% | Added |
| Ameriprise Financial Inc | 734,976 | $305.8M | 0.06% | +503,180+217.1% | Added |
| Bank of New York Mellon Corp | 674,288 | $280.5M | 0.05% | +18,184+2.8% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 660,440 | $274.8M | 0.33% | +55,763+9.2% | Added |
| AQR Capital Management LLC | 657,603 | $273.6M | 0.10% | −2,451−0.4% | Reduced |
| Morgan Stanley | 653,503 | $271.9M | 0.01% | +66,760+11.4% | Added |
| Dimensional Fund Advisors LP | 636,286 | $264.8M | 0.05% | −95,364−13.0% | Reduced |
| Electron Capital Partners, LLC | 620,190 | $258.0M | 10.30% | −92,823−13.0% | Reduced |
| Canada Pension Plan Investment Board | 619,910 | $257.9M | 0.14% | −19,054−3.0% | Reduced |
| T. Rowe Price Investment Management, Inc. | 593,724 | $247.0M | 0.16% | +593,724 | New |
| Charles Schwab Investment Management Inc | 551,319 | $229.4M | 0.03% | +40,076+7.8% | Added |
| Goldman Sachs Group Inc | 542,636 | $225.8M | 0.02% | +68,122+14.4% | Added |
| Nordea Investment Management AB | 529,463 | $225.5M | 0.18% | −204,165−27.8% | Reduced |
| Northern Trust Corp | 517,643 | $215.4M | 0.03% | +45,060+9.5% | Added |
| Coatue Management LLCSuperinvestorCoatue Management | 517,250 | $215.2M | 0.44% | −66,347−11.4% | Reduced |
| UBS Group AG | 509,843 | $212.1M | 0.03% | +128,728+33.8% | Added |
| BNP Paribas Arbitrage, SA | 436,602 | $181.7M | 0.09% | +123,219+39.3% | Added |
| Qube Research & Technologies Ltd | 409,202 | $170.3M | 0.19% | −76,183−15.7% | Reduced |
| UBS Asset Management Americas Inc | 403,709 | $168.0M | 0.03% | +87,560+27.7% | Added |
| Vanguard Fiduciary Trust Co | 399,194 | $166.1M | 0.04% | +15,377+4.0% | Added |
| Amundi | 399,102 | $166.1M | 0.04% | +227,515+132.6% | Added |
| Westfield Capital Management Co LP | 374,457 | $155.8M | 0.51% | +124,477+49.8% | Added |
| Anomaly Capital Management, LP | 306,921 | $127.7M | 4.88% | +82,423+36.7% | Added |
| Third Point LLCSuperinvestorThird Point | 290,000 | $120.7M | 2.59% | −30,000−9.4% | Reduced |
| Price T Rowe Associates Inc | 282,436 | $117.5M | 0.01% | +221,629+364.5% | Added |
| 140 Summer Partners LP | 268,168 | $111.6M | 9.04% | −61,052−18.5% | Reduced |
| Assenagon Asset Management S.A. | 258,398 | $107.5M | 0.07% | +3,176+1.2% | Added |
| Forest Avenue Capital Management LP | 248,627 | $103.4M | 4.34% | −21,224−7.9% | Reduced |
| Freestone Grove Partners LP | 246,593 | $102.6M | 0.67% | +26,193+11.9% | Added |
| Bessemer Group Inc | 230,471 | $95.9M | 0.13% | −1,494−0.6% | Reduced |
| Clearbridge Investments, LLC | 218,591 | $90.9M | 0.08% | +218,591 | New |
| Federated Hermes, Inc. | 216,660 | $90.1M | 0.13% | +113,755+110.5% | Added |
| Hennessy Advisors Inc | 205,100 | $85.3M | 2.73% | 00.0% | Unchanged |
| Merewether Investment Management, LP | 190,236 | $79.1M | 1.49% | −32,825−14.7% | Reduced |
| Nuveen, LLC | 189,055 | $78.7M | 0.02% | +27,514+17.0% | Added |
| Rhumbline Advisers | 188,673 | $78.5M | 0.06% | +20,560+12.2% | Added |
| Legal & General Group Plc | 181,874 | $75.7M | 0.02% | +90,012+98.0% | Added |
| D. E. Shaw & Co., Inc. | 180,243 | $75.0M | 0.05% | +126,888+237.8% | Added |
| Swiss National Bank | 172,280 | $71.7M | 0.04% | +46,280+36.7% | Added |
| Bowen Hanes & Co Inc | 215,465 | $69.3M | 1.69% | 00.0% | Unchanged |
| Arrowstreet Capital, Limited Partnership | 166,345 | $69.2M | 0.03% | −60,939−26.8% | Reduced |
| Raymond James Financial Inc | 165,376 | $68.8M | 0.02% | −66,523−28.7% | Reduced |
| Point72 Asset Management, L.P. | 156,309 | $65.0M | 0.10% | −276,749−63.9% | Reduced |
| OP Asset Management Ltd | 154,952 | $64.5M | 0.69% | −28,380−15.5% | Reduced |
| Gotham Asset Management, LLC | 151,587 | $63.1M | 0.15% | −19,183−11.2% | Reduced |
| Tortoise Capital Advisors, L.L.C. | 143,731 | $59.8M | 0.61% | +125,391+683.7% | Added |
| Country Trust Bank | 141,500 | $58.9M | 1.03% | +9,849+7.5% | Added |
| Principal Financial Group Inc | 139,227 | $57.9M | 0.03% | +2,076+1.5% | Added |
| Quantinno Capital Management LP | 136,950 | $57.0M | 0.07% | +52,563+62.3% | Added |
| Lord, Abbett & Co. LLC | 136,849 | $56.9M | 0.16% | −47,425−25.7% | Reduced |
| Newbrook Capital Advisors LP | 134,430 | $55.9M | 7.55% | +21,445+19.0% | Added |
| Kirr Marbach & Co LLC | 133,726 | $55.6M | 9.37% | −26,471−16.5% | Reduced |
| Acadian Asset Management LLC | 132,007 | $54.9M | 0.07% | +127,926+3,134.7% | Added |
| Hillman Co | 130,909 | $54.5M | 19.27% | −13,780−9.5% | Reduced |
| California Public Employees Retirement System | 126,663 | $52.7M | 0.03% | +10,339+8.9% | Added |
| Vontobel Holding Ltd. | 125,301 | $52.1M | 0.17% | −55,180−30.6% | Reduced |
| Two Sigma Investments, LP | 125,069 | $52.0M | 0.04% | +24,743+24.7% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 124,282 | $51.7M | 0.03% | +115,210+1,270.0% | Added |
| Legacy Advisors, LLC | 124,181 | $51.7M | 4.83% | +30,228+32.2% | Added |
| Wells Fargo & Company | 119,416 | $49.7M | 0.01% | +2,404+2.1% | Added |
| Deutsche Bank AG | 118,727 | $49.4M | 0.01% | +52,749+79.9% | Added |
| SEI Investments Co | 116,639 | $48.5M | 0.04% | +27,530+30.9% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 112,100 | $46.6M | 0.07% | +96,400+614.0% | Added |
| Barclays PLC | 108,074 | $45.0M | 0.01% | +42,507+64.8% | Added |
| Goodlander Investment Management, LLC | 105,000 | $43.7M | 13.19% | −40,000−27.6% | Reduced |
| Envestnet Asset Management Inc | 103,679 | $43.1M | 0.01% | +9,131+9.7% | Added |
| Samlyn Capital, LLC | 100,636 | $41.9M | 0.69% | −37,444−27.1% | Reduced |
| Jennison Associates LLC | 93,701 | $39.0M | 0.02% | −5,785−5.8% | Reduced |
| LPL Financial LLC | 93,274 | $38.8M | 0.01% | +12,427+15.4% | Added |
| Royal Bank of Canada | 91,680 | $38.1M | 0.01% | +22,706+32.9% | Added |
| KBC Group NV | 91,187 | $37.9M | 0.08% | +89,215+4,524.1% | Added |
| California State Teachers Retirement System | 89,451 | $37.2M | 0.03% | +16,447+22.5% | Added |
| Maplelane Capital, LLC | 88,800 | $36.9M | 1.55% | +88,800 | New |
| ThornTree Capital Partners LP | 87,828 | $36.5M | 5.00% | −24,913−22.1% | Reduced |
| HSBC Holdings PLC | 86,514 | $35.9M | 0.02% | +28,144+48.2% | Added |
| LGT Group Foundation | 85,310 | $35.5M | 0.40% | +4,141+5.1% | Added |
| Zimmer Partners, LP | 85,000 | $35.4M | 0.84% | +85,000 | New |
| Cushing Asset Management, LP | 82,800 | $34.4M | 1.54% | +11,900+16.8% | Added |
| Citigroup Inc | 78,536 | $32.7M | 0.02% | +23,352+42.3% | Added |
| Community Trust & Investment Co | 73,763 | $30.7M | 1.58% | −36,150−32.9% | Reduced |
| Schroder Investment Management Group | 72,508 | $30.2M | 0.02% | −72,040−49.8% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 70,661 | $29.4M | 0.02% | +70,501+44,063.1% | Added |
| Webs Creek Capital Management LP | 70,080 | $29.2M | 5.52% | −31,510−31.0% | Reduced |
| Russell Investments Group, Ltd. | 68,776 | $28.6M | 0.03% | −6,074−8.1% | Reduced |
| SG Americas Securities, LLC | 68,058 | $28.3M | 0.02% | −70,751−51.0% | Reduced |
| Toroso Investments, LLC | 67,844 | $28.2M | 0.07% | +36,276+114.9% | Added |