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, Q4 2025
Institutional positions in Mastec Inc as of Dec 31, 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
- 695
- +54 vs. Q3 2025
- Shares held
- 58.7M
- +1.58M (+2.8%) vs. Q3 2025
- Total value
- $12.8B
- +$615.7M (+5.1%) vs. Q3 2025
- New holders
- 121
- 241 more added
- Sold out
- 67
- 227 more reduced
11 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Mastec Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 7,111,254 | $1.55B | 0.03% | −632,111−8.2% | Reduced |
| Vanguard Group Inc | 5,932,754 | $1.29B | 0.02% | −74,438−1.2% | Reduced |
| Victory Capital Management Inc | 2,637,451 | $573.3M | 0.32% | +1,690,896+178.6% | Added |
| Hill City Capital, LP | 2,155,000 | $468.4M | 17.68% | 00.0% | Unchanged |
| State Street Corp | 1,826,422 | $397.0M | 0.01% | −10,729−0.6% | Reduced |
| Peconic Partners LLC | 1,600,000 | $347.8M | 8.26% | +850,000+113.3% | Added |
| Invesco Ltd. | 1,520,030 | $330.4M | 0.03% | −144,371−8.7% | Reduced |
| Hood River Capital Management LLC | 1,483,661 | $322.5M | 3.54% | −162,764−9.9% | Reduced |
| First Trust Advisors LP | 1,311,433 | $285.1M | 0.21% | +289,258+28.3% | Added |
| Bank of America Corp | 1,254,966 | $272.8M | 0.02% | +408,839+48.3% | Added |
| Geode Capital Management, LLC | 1,220,703 | $265.4M | 0.02% | +94,344+8.4% | Added |
| Nordea Investment Management AB | 1,150,269 | $252.1M | 0.22% | −191,754−14.3% | Reduced |
| Third Point LLCSuperinvestorThird Point | 925,000 | $201.1M | 2.76% | +200,000+27.6% | Added |
| Dimensional Fund Advisors LP | 870,846 | $189.3M | 0.04% | −64,158−6.9% | Reduced |
| Electron Capital Partners, LLC | 804,303 | $174.8M | 8.12% | −14,788−1.8% | Reduced |
| Millennium Management LLC | 732,273 | $159.2M | 0.11% | −101,129−12.1% | Reduced |
| AQR Capital Management LLC | 730,979 | $158.9M | 0.08% | −169,505−18.8% | Reduced |
| Point72 Asset Management, L.P. | 720,771 | $156.7M | 0.25% | +62,570+9.5% | Added |
| Coatue Management LLCSuperinvestorCoatue Management | 677,909 | $147.4M | 0.37% | +677,909 | New |
| FMR LLC | 664,590 | $144.5M | 0.01% | +198,986+42.7% | Added |
| Bank of New York Mellon Corp | 636,359 | $138.3M | 0.02% | +53,962+9.3% | Added |
| Jacobs Levy Equity Management, Inc | 605,874 | $131.7M | 0.51% | −127,012−17.3% | Reduced |
| Merewether Investment Management, LP | 569,140 | $123.7M | 2.85% | −298,100−34.4% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 557,777 | $121.2M | 0.18% | +15,704+2.9% | Added |
| Nomura Asset Management International Inc. | 542,733 | $118.0M | 0.18% | +542,733 | New |
| Charles Schwab Investment Management Inc | 502,126 | $109.1M | 0.02% | +12,288+2.5% | Added |
| Forest Avenue Capital Management LP | 494,011 | $107.4M | 7.07% | +72,137+17.1% | Added |
| Morgan Stanley | 489,911 | $106.5M | 0.01% | +21,640+4.6% | Added |
| Northern Trust Corp | 455,797 | $99.1M | 0.01% | −16,806−3.6% | Reduced |
| Freestone Grove Partners LP | 455,617 | $99.0M | 0.72% | −222,688−32.8% | Reduced |
| UBS Group AG | 451,003 | $98.0M | 0.02% | −56,507−11.1% | Reduced |
| Holocene Advisors, LP | 408,746 | $88.8M | 0.19% | +408,746 | New |
| Legacy Advisors, LLC | 380,708 | $82.8M | 8.89% | 00.0% | Unchanged |
| 140 Summer Partners LP | 374,249 | $81.4M | 6.35% | −8,789−2.3% | Reduced |
| Blackstone Group Inc. | 363,924 | $79.1M | 0.34% | +43,924+13.7% | Added |
| Qube Research & Technologies Ltd | 360,859 | $78.4M | 0.11% | −43,043−10.7% | Reduced |
| Goldman Sachs Group Inc | 350,654 | $76.2M | 0.01% | +26,378+8.1% | Added |
| UBS Asset Management Americas Inc | 318,398 | $69.2M | 0.01% | +9,841+3.2% | Added |
| Samlyn Capital, LLC | 306,363 | $66.6M | 1.06% | −13,366−4.2% | Reduced |
| Cartenna Capital, LP | 300,000 | $65.2M | 3.43% | +300,000 | New |
| Raymond James Financial Inc | 274,848 | $59.9M | 0.02% | −13,683−4.7% | Reduced |
| Lord, Abbett & Co. LLC | 267,514 | $58.1M | 0.18% | −68,166−20.3% | Reduced |
| Manufacturers Life Insurance Company, The | 239,525 | $52.1M | 0.04% | −7,453−3.0% | Reduced |
| D. E. Shaw & Co., Inc. | 238,882 | $51.9M | 0.04% | +48,014+25.2% | Added |
| Ameriprise Financial Inc | 232,500 | $50.5M | 0.01% | −378,341−61.9% | Reduced |
| Hennessy Advisors Inc | 226,600 | $49.3M | 1.75% | −12,600−5.3% | Reduced |
| JPMorgan Chase & Co | 216,197 | $47.0M | 0.00% | +4,502+2.1% | Added |
| Gotham Asset Management, LLC | 207,529 | $45.1M | 0.16% | −3,821−1.8% | Reduced |
| Webs Creek Capital Management LP | 201,864 | $43.9M | 7.85% | +145,464+257.9% | Added |
| Schroder Investment Management Group | 200,243 | $43.5M | 0.03% | +68,456+51.9% | Added |
| Walleye Capital LLC | 199,496 | $43.4M | 0.25% | +4,347+2.2% | Added |
| Bowen Hanes & Co Inc | 195,440 | $42.5M | 1.07% | +195,440 | New |
| Country Trust Bank | 192,122 | $41.8M | 0.76% | −1,215−0.6% | Reduced |
| Northwestern Mutual Wealth Management Co | 189,015 | $41.1M | 0.03% | +188,297+26,225.2% | Added |
| Russell Investments Group, Ltd. | 187,516 | $40.8M | 0.04% | −51,864−21.7% | Reduced |
| OP Asset Management Ltd | 184,920 | $40.2M | 0.48% | +29,342+18.9% | Added |
| Cooper Creek Partners Management LLC | 183,838 | $40.0M | 1.89% | +63,266+52.5% | Added |
| BNP Paribas Arbitrage, SA | 171,076 | $37.2M | 0.02% | −127,942−42.8% | Reduced |
| Goodlander Investment Management, LLC | 170,000 | $37.0M | 14.11% | −11,000−6.1% | Reduced |
| Kirr Marbach & Co LLC | 167,556 | $36.4M | 6.96% | −2,226−1.3% | Reduced |
| Rhumbline Advisers | 164,627 | $35.8M | 0.03% | −3,629−2.2% | Reduced |
| Assenagon Asset Management S.A. | 164,540 | $35.8M | 0.05% | −32,557−16.5% | Reduced |
| Vontobel Holding Ltd. | 162,028 | $35.2M | 0.12% | −34,781−17.7% | Reduced |
| Nuveen, LLC | 159,065 | $34.6M | 0.01% | −17,153−9.7% | Reduced |
| Arrowstreet Capital, Limited Partnership | 153,669 | $33.4M | 0.02% | −32,355−17.4% | Reduced |
| Principal Financial Group Inc | 150,201 | $32.6M | 0.02% | −25,613−14.6% | Reduced |
| Canada Pension Plan Investment Board | 150,115 | $32.6M | 0.02% | −44,400−22.8% | Reduced |
| Hillman Co | 144,689 | $31.5M | 10.90% | +40,473+38.8% | Added |
| Wells Fargo & Company | 136,196 | $29.6M | 0.01% | +6,931+5.4% | Added |
| SIR Capital Management, L.P. | 131,899 | $28.7M | 3.17% | −2,889−2.1% | Reduced |
| Alliancebernstein L.P. | 129,063 | $28.1M | 0.01% | +3,477+2.8% | Added |
| Balyasny Asset Management LLC | 128,131 | $27.9M | 0.05% | −291,172−69.4% | Reduced |
| Algert Global LLC | 126,235 | $27.4M | 0.43% | +6,931+5.8% | Added |
| Swiss National Bank | 124,500 | $27.1M | 0.02% | +2,200+1.8% | Added |
| Community Trust & Investment Co | 124,035 | $27.0M | 1.43% | −20,632−14.3% | Reduced |
| Yaupon Capital Management LP | 116,993 | $25.4M | 1.25% | +74,717+176.7% | Added |
| California Public Employees Retirement System | 116,508 | $25.3M | 0.01% | −882−0.8% | Reduced |
| Squarepoint Ops LLC | 114,681 | $24.9M | 0.05% | −16,990−12.9% | Reduced |
| Federated Hermes, Inc. | 106,906 | $23.2M | 0.04% | +100,832+1,660.1% | Added |
| Muhlenkamp & Co Inc | 105,760 | $23.0M | 6.18% | −260.0% | Reduced |
| Driehaus Capital Management LLC | 104,195 | $22.6M | 0.15% | +6,332+6.5% | Added |
| Jennison Associates LLC | 102,856 | $22.4M | 0.01% | −146,403−58.7% | Reduced |
| Makena Capital Management LLC | 102,423 | $22.3M | 2.67% | −19,662−16.1% | Reduced |
| Marshall Wace, LLP | 102,403 | $22.3M | 0.02% | +102,403 | New |
| SEI Investments Co | 101,716 | $22.1M | 0.02% | −12,140−10.7% | Reduced |
| Capstone Investment Advisors, LLC | 100,997 | $22.0M | 0.18% | +100,997 | New |
| Legal & General Group Plc | 96,829 | $21.0M | 0.00% | −2,471−2.5% | Reduced |
| Wolf Hill Capital Management, LP | 96,439 | $21.0M | 2.44% | −91,093−48.6% | Reduced |
| Two Sigma Investments, LP | 96,304 | $20.9M | 0.03% | +86,216+854.6% | Added |
| Barclays PLC | 84,289 | $18.3M | 0.01% | −41,174−32.8% | Reduced |
| LPL Financial LLC | 83,072 | $18.1M | 0.00% | −35,219−29.8% | Reduced |
| Royal Bank of Canada | 82,753 | $18.0M | 0.00% | −34,528−29.4% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 80,056 | $17.4M | 0.04% | −34,953−30.4% | Reduced |
| Deutsche Bank AG | 78,257 | $17.0M | 0.01% | +38,258+95.6% | Added |
| Retirement Systems of Alabama | 73,614 | $16.0M | 0.05% | −511−0.7% | Reduced |
| Quantinno Capital Management LP | 73,194 | $15.9M | 0.03% | +16,026+28.0% | Added |
| Ieq Capital, LLC | 71,191 | $15.5M | 0.05% | +2,483+3.6% | Added |
| Cushing Asset Management, LP | 70,500 | $15.3M | 0.88% | +23,500+50.0% | Added |
| Envestnet Asset Management Inc | 69,996 | $15.2M | 0.00% | +4,683+7.2% | Added |
| Amundi | 69,934 | $15.2M | 0.00% | −155,260−68.9% | Reduced |