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 |
|---|---|---|---|---|---|
| Retirement Systems of Alabama | 63,728 | $26.5M | 0.08% | −11,468−15.3% | Reduced |
| Scopus Asset Management, L.P. | 62,944 | $26.2M | 0.62% | +27,087+75.5% | Added |
| Alliancebernstein L.P. | 80,697 | $26.0M | 0.01% | −5,348−6.2% | Reduced |
| Asset Management One Co.,Ltd. | 61,451 | $25.6M | 0.07% | +15,816+34.7% | Added |
| Cooper Creek Partners Management LLC | 61,295 | $25.5M | 1.06% | −22,411−26.8% | Reduced |
| Makena Capital Management LLC | 60,452 | $25.2M | 2.64% | −18,773−23.7% | Reduced |
| Agf Management Ltd | 59,500 | $24.8M | 0.10% | +7,511+14.4% | Added |
| Danske Bank A/S | 58,959 | $24.5M | 0.05% | +31,595+115.5% | Added |
| Swedbank AB | 58,600 | $24.4M | 0.02% | 00.0% | Unchanged |
| Nomura Asset Management International Inc. | 58,519 | $24.3M | 0.04% | −279,304−82.7% | Reduced |
| Norges Bank | 55,571 | $23.1M | 0.00% | +55,571 | New |
| Stephens Inc | 55,460 | $23.1M | 0.26% | +1,988+3.7% | Added |
| SRS Capital Advisors, Inc. | 54,314 | $22.6M | 0.15% | +35,986+196.3% | Added |
| TD Asset Management Inc | 53,949 | $22.4M | 0.02% | +47,655+757.1% | Added |
| State Board of Administration of Florida Retirement System | 53,108 | $22.1M | 0.04% | +2,970+5.9% | Added |
| Mirae Asset Global Investments Co., Ltd. | 52,350 | $21.8M | 0.04% | −3,140−5.7% | Reduced |
| Advisors Asset Management, Inc. | 51,285 | $21.3M | 0.33% | +3,590+7.5% | Added |
| SIR Capital Management, L.P. | 50,469 | $21.0M | 2.41% | +13,970+38.3% | Added |
| Aviva PLC | 48,775 | $20.3M | 0.03% | +48,775 | New |
| Daiwa Securities Group Inc. | 48,260 | $20.1M | 0.05% | +760+1.6% | Added |
| Driehaus Capital Management LLC | 46,753 | $19.5M | 0.11% | −57,249−55.0% | Reduced |
| Banco Santander, S.A. | 45,843 | $19.1M | 0.12% | −12,034−20.8% | Reduced |
| Korea Investment CORP | 45,696 | $19.0M | 0.04% | +45,696 | New |
| Voloridge Investment Management, LLC | 45,000 | $18.7M | 0.08% | 00.0% | Unchanged |
| Defiance ETFs, LLC | 47,455 | $18.5M | 0.26% | +28,896+155.7% | Added |
| Raiffeisen Bank International AG | 42,931 | $18.4M | 0.22% | −23,069−35.0% | Reduced |
| Millennium Management LLC | 43,898 | $18.3M | 0.01% | −459,301−91.3% | Reduced |
| Great West Life Assurance Co | 43,098 | $17.9M | 0.03% | +7,451+20.9% | Added |
| Janney Montgomery Scott LLC | 42,371 | $17.6M | 0.03% | +2,627+6.6% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 42,247 | $17.6M | 0.03% | +9,783+30.1% | Added |
| Erste Asset Management GmbH | 40,715 | $17.6M | 0.14% | +4,590+12.7% | Added |
| Storebrand Asset Management AS | 41,321 | $17.2M | 0.04% | +5,961+16.9% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 41,298 | $17.2M | 0.03% | −26,069−38.7% | Reduced |
| Intech Investment Management LLC | 41,093 | $17.1M | 0.16% | +16,576+67.6% | Added |
| Stifel Financial Corp | 40,605 | $16.9M | 0.01% | +8,276+25.6% | Added |
| Vinva Investment Management Ltd | 39,063 | $16.8M | 0.11% | +39,063 | New |
| Ci Investments Inc. | 40,144 | $16.7M | 0.05% | +17,942+80.8% | Added |
| Ieq Capital, LLC | 40,032 | $16.7M | 0.08% | −25,091−38.5% | Reduced |
| Bank of Nova Scotia | 39,830 | $16.6M | 0.03% | −6,341−13.7% | Reduced |
| Manufacturers Life Insurance Company, The | 39,643 | $16.5M | 0.01% | −148,307−78.9% | Reduced |
| MML Investors Services, LLC | 38,055 | $15.8M | 0.03% | +5,458+16.7% | Added |
| Zacks Investment Management | 36,166 | $15.0M | 0.11% | +2,268+6.7% | Added |
| Cerity Partners LLC | 35,957 | $15.0M | 0.02% | −10,077−21.9% | Reduced |
| Sterling Capital Management LLC | 35,945 | $15.0M | 0.25% | −5,739−13.8% | Reduced |
| Atika Capital Management LLC | 35,500 | $14.8M | 1.47% | −22,136−38.4% | Reduced |
| Moran Wealth Management, LLC | 35,124 | $14.6M | 0.40% | −19,880−36.1% | Reduced |
| Riposte Capital LLC | 35,000 | $14.6M | 4.94% | −35,000−50.0% | Reduced |
| Marco Investment Management LLC | 34,015 | $14.2M | 0.93% | −550−1.6% | Reduced |
| State of Wisconsin Investment Board | 33,794 | $14.1M | 0.03% | −13,847−29.1% | Reduced |
| Pinebridge Investments LLC | 32,586 | $13.6M | 0.11% | −5,361−14.1% | Reduced |
| Treasurer of the State of North Carolina | 32,523 | $13.5M | 0.03% | +5,897+22.1% | Added |
| Candriam Luxembourg S.C.A. | 32,378 | $13.5M | 0.06% | +5,106+18.7% | Added |
| Needham Investment Management LLC | 32,250 | $13.4M | 0.40% | +12,150+60.4% | Added |
| MetLife Investment Management | 32,108 | $13.4M | 0.06% | +1,329+4.3% | Added |
| New York State Common Retirement Fund | 31,853 | $13.3M | 0.02% | +924+3.0% | Added |
| First Washington CORP | 31,052 | $12.9M | 3.15% | −10,669−25.6% | Reduced |
| Covalis Capital LLP | 30,842 | $12.8M | 0.72% | +30,842 | New |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 30,720 | $12.8M | 0.06% | +15,720+104.8% | Added |
| HRT Financial LP | 30,548 | $12.7M | 0.02% | −37,466−55.1% | Reduced |
| Allspring Global Investments Holdings, LLC | 32,475 | $12.7M | 0.02% | −728−2.2% | Reduced |
| Credit Agricole S A | 30,445 | $12.7M | 0.03% | +16,599+119.9% | Added |
| Public Employees Retirement System of Ohio | 29,862 | $12.4M | 0.04% | −4,164−12.2% | Reduced |
| TD Waterhouse Canada Inc. | 31,516 | $12.3M | 0.03% | −1,158−3.5% | Reduced |
| Square Wave Capital, LLC | 29,500 | $12.3M | 1.83% | −31,100−51.3% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 29,388 | $12.2M | 0.02% | +9,563+48.2% | Added |
| Amalgamated Bank | 29,142 | $12.1M | 0.08% | −334−1.1% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 29,084 | $12.1M | 0.03% | +29,084 | New |
| Vanguard Investments Australia, Ltd. | 29,022 | $12.1M | 0.03% | +13,135+82.7% | Added |
| J. Safra Sarasin Holding AG | 29,030 | $12.1M | 0.17% | −11,515−28.4% | Reduced |
| New York State Teachers Retirement System | 28,288 | $11.8M | 0.02% | +4,026+16.6% | Added |
| Cambridge Investment Research Advisors, Inc. | 28,201 | $11.7M | 0.03% | −7,534−21.1% | Reduced |
| Pinnbrook Capital Management LP | 27,243 | $11.3M | 1.89% | −8,944−24.7% | Reduced |
| Dorsey Wright & Associates | 27,080 | $11.3M | 1.91% | −11,981−30.7% | Reduced |
| Chase Investment Counsel Corp | 26,950 | $11.2M | 2.37% | −4,734−14.9% | Reduced |
| Natixis Advisors, L.P. | 26,920 | $11.2M | 0.01% | +9,842+57.6% | Added |
| Los Angeles Capital Management LLC | 26,872 | $11.2M | 0.04% | +22,560+523.2% | Added |
| Susquehanna International Group, LLP | 26,689 | $11.1M | 0.01% | +14,711+122.8% | Added |
| KLP Kapitalforvaltning AS | 26,600 | $11.1M | 0.04% | +12,400+87.3% | Added |
| TCW Group Inc | 26,174 | $10.9M | 0.07% | +2,454+10.3% | Added |
| PDT Partners, LLC | 25,533 | $10.6M | 0.56% | 00.0% | Unchanged |
| Kingswood Wealth Advisors, LLC | 25,308 | $10.5M | 0.42% | −2,500−9.0% | Reduced |
| L & S Advisors Inc | 25,067 | $10.4M | 1.08% | −1,043−4.0% | Reduced |
| Advisor Group Holdings, Inc. | 25,013 | $10.4M | 0.01% | −6,062−19.5% | Reduced |
| Wedge Capital Management L L P | 24,999 | $10.4M | 0.17% | −5,570−18.2% | Reduced |
| Navellier & Associates Inc | 24,709 | $10.3M | 0.81% | +3,300+15.4% | Added |
| Vanguard Asset Management, Ltd | 24,549 | $10.2M | 0.01% | −24,009−49.4% | Reduced |
| Sequoia Financial Advisors, LLC | 24,540 | $10.2M | 0.05% | +4,482+22.3% | Added |
| Squarepoint Ops LLC | 24,496 | $10.2M | 0.02% | −201,154−89.1% | Reduced |
| Vanguard Global Advisers, LLC | 24,278 | $10.1M | 0.00% | −1,077−4.2% | Reduced |
| Pictet Asset Management Holding SA | 24,150 | $10.0M | 0.01% | +13,973+137.3% | Added |
| State of Tennessee, Treasury Department | 23,722 | $9.87M | 0.03% | −2,752−10.4% | Reduced |
| Empowered Funds, LLC | 23,617 | $9.83M | 0.05% | −9,348−28.4% | Reduced |
| O'Shaughnessy Asset Management, LLC | 23,498 | $9.78M | 0.05% | −1,342−5.4% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 40,130 | $9.71M | 0.02% | +20.0% | Added |
| Fifth Third Bancorp | 22,953 | $9.55M | 0.02% | −3,343−12.7% | Reduced |
| Mutual of America Capital Management LLC | 22,897 | $9.53M | 0.09% | −608−2.6% | Reduced |
| Scotia Capital Inc. | 22,629 | $9.41M | 0.04% | −1,430−5.9% | Reduced |
| Brevan Howard Capital Management LP | 22,609 | $9.41M | 0.13% | −72,060−76.1% | Reduced |
| Dana Investment Advisors, Inc. | 22,165 | $9.22M | 0.24% | −4,654−17.4% | Reduced |
| Intrinsic Edge Capital Management LLC | 22,157 | $9.22M | 1.14% | −100−0.4% | Reduced |