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, Q1 2026
Institutional positions in Mastec Inc as of Mar 31, 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
- 811
- +122 vs. Q4 2025
- Shares held
- 58.0M
- +5.36M (+10.2%) vs. Q4 2025
- Total value
- $18.6B
- +$7.19B (+62.7%) vs. Q4 2025
- New holders
- 184
- 256 more added
- Sold out
- 62
- 263 more reduced
6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Mastec Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Riposte Capital LLC | 70,000 | $22.5M | 10.30% | +43,141+160.6% | Added |
| Royal Bank of Canada | 68,974 | $22.2M | 0.00% | −13,779−16.7% | Reduced |
| HRT Financial LP | 68,014 | $21.9M | 0.05% | +37,068+119.8% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 67,367 | $21.7M | 0.05% | −12,689−15.9% | Reduced |
| Deutsche Bank AG | 65,978 | $21.2M | 0.01% | −12,279−15.7% | Reduced |
| Barclays PLC | 65,567 | $21.1M | 0.01% | −18,722−22.2% | Reduced |
| Ieq Capital, LLC | 65,123 | $21.0M | 0.10% | −6,068−8.5% | Reduced |
| Raiffeisen Bank International AG | 66,000 | $20.2M | 0.29% | 00.0% | Unchanged |
| 1832 Asset Management L.P. | 61,000 | $19.6M | 0.03% | +61,000 | New |
| Price T Rowe Associates Inc | 60,807 | $19.6M | 0.00% | +6,024+11.0% | Added |
| Square Wave Capital, LLC | 60,600 | $19.5M | 4.72% | +60,600 | New |
| Walleye Capital LLC | 59,182 | $19.0M | 0.12% | −140,314−70.3% | Reduced |
| Swedbank AB | 58,600 | $18.9M | 0.02% | −5,700−8.9% | Reduced |
| Alliancebernstein L.P. | 86,045 | $18.7M | 0.01% | −43,018−33.3% | Reduced |
| HSBC Holdings PLC | 58,370 | $18.7M | 0.01% | −4,362−7.0% | Reduced |
| Banco Santander, S.A. | 57,877 | $18.6M | 0.15% | 00.0% | Unchanged |
| Atika Capital Management LLC | 57,636 | $18.5M | 2.93% | +1,638+2.9% | Added |
| CloudAlpha Capital Management Limited/Hong Kong | 57,400 | $18.5M | 2.03% | +57,400 | New |
| ING Groep NV | 56,870 | $18.3M | 0.11% | +56,870 | New |
| ExodusPoint Capital Management, LP | 55,985 | $18.0M | 0.18% | +55,985 | New |
| Mirae Asset Global Investments Co., Ltd. | 55,490 | $17.9M | 0.05% | +55,490 | New |
| Citigroup Inc | 55,184 | $17.8M | 0.01% | +36,491+195.2% | Added |
| Moran Wealth Management, LLC | 55,004 | $17.7M | 0.54% | −9,842−15.2% | Reduced |
| Aventail Capital Group, LP | 54,407 | $17.5M | 0.85% | +35,569+188.8% | Added |
| Stephens Inc | 53,472 | $17.2M | 0.22% | +9,679+22.1% | Added |
| D. E. Shaw & Co., Inc. | 53,355 | $17.2M | 0.01% | −185,527−77.7% | Reduced |
| Agf Management Ltd | 51,989 | $16.7M | 0.07% | −1,247−2.3% | Reduced |
| Bruni J V & Co | 50,645 | $16.3M | 1.70% | −819−1.6% | Reduced |
| State Board of Administration of Florida Retirement System | 50,138 | $16.1M | 0.03% | 00.0% | Unchanged |
| Vanguard Asset Management, Ltd | 48,558 | $15.6M | 0.01% | +48,558 | New |
| Advisors Asset Management, Inc. | 47,695 | $15.3M | 0.26% | +5,445+12.9% | Added |
| State of Wisconsin Investment Board | 47,641 | $15.3M | 0.04% | −4,016−7.8% | Reduced |
| STRS Ohio | 47,588 | $15.3M | 0.06% | +46,098+3,093.8% | Added |
| Daiwa Securities Group Inc. | 47,500 | $15.3M | 0.04% | −15,969−25.2% | Reduced |
| Bank of Nova Scotia | 46,171 | $14.9M | 0.03% | +30,653+197.5% | Added |
| Cerity Partners LLC | 46,034 | $14.8M | 0.02% | +190.0% | Added |
| Great Lakes Advisors, LLC | 45,916 | $14.8M | 0.12% | −7,191−13.5% | Reduced |
| Asset Management One Co.,Ltd. | 45,635 | $14.6M | 0.04% | −13,720−23.1% | Reduced |
| Voloridge Investment Management, LLC | 45,000 | $14.5M | 0.06% | +31,157+225.1% | Added |
| Muhlenkamp & Co Inc | 42,832 | $13.8M | 3.63% | −62,928−59.5% | Reduced |
| First Washington CORP | 41,721 | $13.4M | 3.80% | −53−0.1% | Reduced |
| Sterling Capital Management LLC | 41,684 | $13.4M | 0.25% | −10,596−20.3% | Reduced |
| LMR Partners LLP | 41,096 | $13.2M | 0.12% | −16,253−28.3% | Reduced |
| J. Safra Sarasin Holding AG | 40,545 | $13.0M | 0.22% | 00.0% | Unchanged |
| Bridgewater Associates, LP | 40,138 | $12.9M | 0.06% | +29,414+274.3% | Added |
| Janney Montgomery Scott LLC | 39,744 | $12.8M | 0.03% | +12,802+47.5% | Added |
| Dorsey Wright & Associates | 39,061 | $12.6M | 1.56% | +26,823+219.2% | Added |
| CWM, LLC | 38,107 | $12.3M | 0.03% | +7,502+24.5% | Added |
| Pinebridge Investments LLC | 37,947 | $12.2M | 0.10% | +7,763+25.7% | Added |
| Jain Global LLC | 37,729 | $12.1M | 0.15% | +37,729 | New |
| SIR Capital Management, L.P. | 36,499 | $11.7M | 1.10% | −95,400−72.3% | Reduced |
| Pinnbrook Capital Management LP | 36,187 | $11.6M | 9.51% | +10,002+38.2% | Added |
| Scopus Asset Management, L.P. | 35,857 | $11.5M | 0.36% | −21,144−37.1% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 35,735 | $11.5M | 0.03% | +11,485+47.4% | Added |
| Great West Life Assurance Co | 35,647 | $11.5M | 0.02% | +154+0.4% | Added |
| Storebrand Asset Management AS | 35,360 | $11.4M | 0.03% | −10,487−22.9% | Reduced |
| J. Goldman & Co LP | 34,962 | $11.2M | 0.52% | +34,962 | New |
| Marco Investment Management LLC | 34,565 | $11.1M | 0.84% | −60−0.2% | Reduced |
| Allspring Global Investments Holdings, LLC | 33,203 | $11.1M | 0.02% | −18,672−36.0% | Reduced |
| Erste Asset Management GmbH | 36,125 | $11.0M | 0.10% | +3,095+9.4% | Added |
| TD Waterhouse Canada Inc. | 32,674 | $11.0M | 0.03% | +31,990+4,676.9% | Added |
| Public Employees Retirement System of Ohio | 34,026 | $10.9M | 0.04% | −12,928−27.5% | Reduced |
| Zacks Investment Management | 33,898 | $10.9M | 0.09% | −2,284−6.3% | Reduced |
| Empowered Funds, LLC | 32,965 | $10.6M | 0.07% | +32,965 | New |
| MML Investors Services, LLC | 32,597 | $10.5M | 0.03% | −8,387−20.5% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 32,464 | $10.4M | 0.02% | +16,809+107.4% | Added |
| Stifel Financial Corp | 32,329 | $10.4M | 0.01% | +9,368+40.8% | Added |
| Chase Investment Counsel Corp | 31,684 | $10.2M | 2.68% | +1,906+6.4% | Added |
| Toroso Investments, LLC | 31,568 | $10.2M | 0.03% | −10,315−24.6% | Reduced |
| Hel Ved Capital Management Ltd | 31,140 | $10.0M | 1.73% | +6,915+28.5% | Added |
| Advisor Group Holdings, Inc. | 31,075 | $10.0M | 0.01% | +11,967+62.6% | Added |
| New York State Common Retirement Fund | 30,929 | $9.95M | 0.01% | 00.0% | Unchanged |
| MetLife Investment Management | 30,779 | $9.90M | 0.05% | +163+0.5% | Added |
| Wedge Capital Management L L P | 30,569 | $9.84M | 0.18% | −7,586−19.9% | Reduced |
| Cohen & Steers, Inc. | 30,326 | $9.76M | 0.02% | −4,714−13.5% | Reduced |
| Occudo Quantitative Strategies LP | 24,719 | $9.74M | 0.53% | +24,719 | New |
| Amalgamated Bank | 29,476 | $9.48M | 0.07% | +886+3.1% | Added |
| Tribune Investment Group LP | 29,000 | $9.33M | 6.27% | +29,000 | New |
| Janus Henderson Group PLC | 27,855 | $8.96M | 0.00% | 00.0% | Unchanged |
| Kingswood Wealth Advisors, LLC | 27,808 | $8.95M | 0.42% | −162−0.6% | Reduced |
| Danske Bank A/S | 27,364 | $8.80M | 0.02% | −399−1.4% | Reduced |
| Candriam Luxembourg S.C.A. | 27,272 | $8.77M | 0.05% | −27,126−49.9% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 40,128 | $8.66M | 0.02% | +19,009+90.0% | Added |
| Jefferies Financial Group Inc. | 26,865 | $8.64M | 0.11% | −18,182−40.4% | Reduced |
| Dana Investment Advisors, Inc. | 26,819 | $8.63M | 0.26% | −5,347−16.6% | Reduced |
| Treasurer of the State of North Carolina | 26,626 | $8.57M | 0.03% | +563+2.2% | Added |
| Police & Firemen's Retirement System of New Jersey | 26,487 | $8.52M | 0.07% | +139+0.5% | Added |
| State of Tennessee, Treasury Department | 26,474 | $8.52M | 0.03% | 00.0% | Unchanged |
| SummitTX Capital, L.P. | 26,473 | $8.52M | 0.27% | −29,167−52.4% | Reduced |
| Fifth Third Bancorp | 26,296 | $8.46M | 0.02% | +25,573+3,537.1% | Added |
| L & S Advisors Inc | 26,110 | $8.40M | 1.06% | +26,110 | New |
| PDT Partners, LLC | 25,533 | $8.21M | 0.49% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 25,355 | $8.16M | 0.00% | +25,355 | New |
| Kennedy Capital Management, Inc. | 25,084 | $8.07M | 0.17% | −2,939−10.5% | Reduced |
| O'Shaughnessy Asset Management, LLC | 24,840 | $7.99M | 0.04% | +3,661+17.3% | Added |
| Intech Investment Management LLC | 24,517 | $7.89M | 0.08% | −12,003−32.9% | Reduced |
| Schonfeld Strategic Advisors LLC | 24,275 | $7.81M | 0.06% | +22,495+1,263.8% | Added |
| New York State Teachers Retirement System | 24,262 | $7.81M | 0.02% | −6,081−20.0% | Reduced |
| Commonwealth Equity Services, LLC | 24,169 | $7.78M | 0.01% | −2,219−8.4% | Reduced |
| Scotia Capital Inc. | 24,059 | $7.74M | 0.03% | −546−2.2% | Reduced |