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 |
|---|---|---|---|---|---|
| Square Wave Capital, LLC | 60,600 | $19.5M | 4.72% | +60,600 | New |
| Price T Rowe Associates Inc | 60,807 | $19.6M | 0.00% | +6,024+11.0% | Added |
| 1832 Asset Management L.P. | 61,000 | $19.6M | 0.03% | +61,000 | New |
| Raiffeisen Bank International AG | 66,000 | $20.2M | 0.29% | 00.0% | Unchanged |
| Ieq Capital, LLC | 65,123 | $21.0M | 0.10% | −6,068−8.5% | Reduced |
| Barclays PLC | 65,567 | $21.1M | 0.01% | −18,722−22.2% | Reduced |
| Deutsche Bank AG | 65,978 | $21.2M | 0.01% | −12,279−15.7% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 67,367 | $21.7M | 0.05% | −12,689−15.9% | Reduced |
| HRT Financial LP | 68,014 | $21.9M | 0.05% | +37,068+119.8% | Added |
| Royal Bank of Canada | 68,974 | $22.2M | 0.00% | −13,779−16.7% | Reduced |
| Riposte Capital LLC | 70,000 | $22.5M | 10.30% | +43,141+160.6% | Added |
| Cushing Asset Management, LP | 70,900 | $22.8M | 1.14% | +400+0.6% | Added |
| California State Teachers Retirement System | 73,004 | $23.5M | 0.02% | +13,187+22.0% | Added |
| Russell Investments Group, Ltd. | 74,850 | $24.1M | 0.03% | −112,666−60.1% | Reduced |
| Retirement Systems of Alabama | 75,196 | $24.2M | 0.08% | +1,582+2.1% | Added |
| Makena Capital Management LLC | 79,225 | $25.5M | 2.94% | −23,198−22.6% | Reduced |
| Toronto Dominion Bank | 80,025 | $25.7M | 0.05% | +79,983+190,435.7% | Added |
| LPL Financial LLC | 80,847 | $26.0M | 0.01% | −2,225−2.7% | Reduced |
| LGT Group Foundation | 81,169 | $26.1M | 0.32% | +81,169 | New |
| Cooper Creek Partners Management LLC | 83,706 | $26.9M | 1.30% | −100,132−54.5% | Reduced |
| Quantinno Capital Management LP | 84,387 | $27.2M | 0.05% | +11,193+15.3% | Added |
| Alyeska Investment Group, L.P. | 87,486 | $28.1M | 0.08% | +46,586+113.9% | Added |
| SEI Investments Co | 89,109 | $28.7M | 0.03% | −12,607−12.4% | Reduced |
| Brevan Howard Capital Management LP | 94,669 | $29.5M | 0.30% | +86,020+994.6% | Added |
| Legal & General Group Plc | 91,862 | $29.6M | 0.01% | −4,967−5.1% | Reduced |
| Trexquant Investment LP | 92,112 | $29.6M | 0.21% | +92,112 | New |
| Legacy Advisors, LLC | 93,953 | $30.2M | 3.56% | −286,755−75.3% | Reduced |
| Jane Street Group, LLC | 93,956 | $30.2M | 0.03% | +90,393+2,537.0% | Added |
| Envestnet Asset Management Inc | 94,548 | $30.4M | 0.01% | +24,552+35.1% | Added |
| Jennison Associates LLC | 99,486 | $32.0M | 0.02% | −3,370−3.3% | Reduced |
| Two Sigma Investments, LP | 100,326 | $32.3M | 0.03% | +4,022+4.2% | Added |
| Webs Creek Capital Management LP | 101,590 | $32.7M | 5.66% | −100,274−49.7% | Reduced |
| Holocene Advisors, LP | 101,724 | $32.7M | 0.08% | −307,022−75.1% | Reduced |
| Federated Hermes, Inc. | 102,905 | $33.1M | 0.05% | −4,001−3.7% | Reduced |
| Driehaus Capital Management LLC | 104,002 | $33.5M | 0.25% | −193−0.2% | Reduced |
| Community Trust & Investment Co | 109,913 | $35.4M | 1.92% | −14,122−11.4% | Reduced |
| ThornTree Capital Partners LP | 112,741 | $36.3M | 6.44% | +112,741 | New |
| Newbrook Capital Advisors LP | 112,985 | $36.4M | 6.76% | +112,985 | New |
| California Public Employees Retirement System | 116,324 | $37.4M | 0.02% | −184−0.2% | Reduced |
| Wells Fargo & Company | 117,012 | $37.6M | 0.01% | −19,184−14.1% | Reduced |
| Algert Global LLC | 118,056 | $38.0M | 0.57% | −8,179−6.5% | Reduced |
| Swiss National Bank | 126,000 | $40.5M | 0.02% | +1,500+1.2% | Added |
| Balyasny Asset Management LLC | 128,628 | $41.4M | 0.08% | +497+0.4% | Added |
| Country Trust Bank | 131,651 | $42.4M | 0.81% | −60,471−31.5% | Reduced |
| Principal Financial Group Inc | 137,151 | $44.1M | 0.02% | −13,050−8.7% | Reduced |
| Samlyn Capital, LLC | 138,080 | $44.4M | 0.76% | −168,283−54.9% | Reduced |
| SG Americas Securities, LLC | 138,809 | $44.7M | 0.05% | +109,040+366.3% | Added |
| Schroder Investment Management Group | 144,548 | $46.5M | 0.04% | −55,695−27.8% | Reduced |
| Hillman Co | 144,689 | $46.6M | 18.10% | 00.0% | Unchanged |
| Goodlander Investment Management, LLC | 145,000 | $46.7M | 16.14% | −25,000−14.7% | Reduced |
| Northwestern Mutual Wealth Management Co | 152,681 | $49.1M | 0.03% | −36,334−19.2% | Reduced |
| Kirr Marbach & Co LLC | 160,197 | $51.5M | 9.39% | −7,359−4.4% | Reduced |
| Nuveen, LLC | 161,541 | $52.0M | 0.01% | +2,476+1.6% | Added |
| Rhumbline Advisers | 168,113 | $54.1M | 0.05% | +3,486+2.1% | Added |
| Gotham Asset Management, LLC | 170,770 | $54.9M | 0.17% | −36,759−17.7% | Reduced |
| Amundi | 171,587 | $55.2M | 0.02% | +101,653+145.4% | Added |
| Vontobel Holding Ltd. | 180,481 | $58.1M | 0.20% | +18,453+11.4% | Added |
| OP Asset Management Ltd | 183,332 | $59.0M | 0.61% | −1,588−0.9% | Reduced |
| Lord, Abbett & Co. LLC | 184,274 | $59.3M | 0.19% | −83,240−31.1% | Reduced |
| Manufacturers Life Insurance Company, The | 187,950 | $60.5M | 0.05% | −51,575−21.5% | Reduced |
| JPMorgan Chase & Co | 202,002 | $61.8M | 0.00% | −14,195−6.6% | Reduced |
| Hennessy Advisors Inc | 205,100 | $66.0M | 2.38% | −21,500−9.5% | Reduced |
| Bowen Hanes & Co Inc | 215,465 | $69.3M | 1.69% | +20,025+10.2% | Added |
| Freestone Grove Partners LP | 220,400 | $70.9M | 0.51% | −235,217−51.6% | Reduced |
| Merewether Investment Management, LP | 223,061 | $71.8M | 1.39% | −346,079−60.8% | Reduced |
| Anomaly Capital Management, LP | 224,498 | $72.2M | 4.37% | +224,498 | New |
| Squarepoint Ops LLC | 225,650 | $72.6M | 0.16% | +110,969+96.8% | Added |
| Arrowstreet Capital, Limited Partnership | 227,284 | $73.1M | 0.04% | +73,615+47.9% | Added |
| Raymond James Financial Inc | 231,899 | $73.7M | 0.02% | −42,949−15.6% | Reduced |
| Ameriprise Financial Inc | 231,796 | $74.6M | 0.02% | −704−0.3% | Reduced |
| Bessemer Group Inc | 231,965 | $74.6M | 0.12% | +229,129+8,079.3% | Added |
| Westfield Capital Management Co LP | 249,980 | $80.4M | 0.34% | +249,980 | New |
| Assenagon Asset Management S.A. | 255,222 | $82.1M | 0.13% | +90,682+55.1% | Added |
| Forest Avenue Capital Management LP | 269,851 | $86.8M | 5.49% | −224,160−45.4% | Reduced |
| Citadel Advisors LLC | 279,778 | $90.0M | 0.06% | +258,511+1,215.5% | Added |
| BNP Paribas Arbitrage, SA | 313,383 | $100.8M | 0.07% | +142,307+83.2% | Added |
| UBS Asset Management Americas Inc | 316,149 | $101.7M | 0.02% | −2,249−0.7% | Reduced |
| Third Point LLCSuperinvestorThird Point | 320,000 | $103.0M | 4.94% | −605,000−65.4% | Reduced |
| 140 Summer Partners LP | 329,220 | $105.9M | 9.35% | −45,029−12.0% | Reduced |
| Nomura Asset Management International Inc. | 337,823 | $108.7M | 0.19% | −204,910−37.8% | Reduced |
| UBS Group AG | 381,115 | $122.6M | 0.02% | −69,888−15.5% | Reduced |
| Vanguard Fiduciary Trust Co | 383,817 | $123.5M | 0.03% | +383,817 | New |
| Point72 Asset Management, L.P. | 433,058 | $139.3M | 0.24% | −287,713−39.9% | Reduced |
| Northern Trust Corp | 472,583 | $152.0M | 0.02% | +16,786+3.7% | Added |
| Goldman Sachs Group Inc | 474,514 | $152.7M | 0.02% | +123,860+35.3% | Added |
| Qube Research & Technologies Ltd | 485,385 | $156.2M | 0.22% | +124,526+34.5% | Added |
| Millennium Management LLC | 503,199 | $161.9M | 0.12% | −229,074−31.3% | Reduced |
| Charles Schwab Investment Management Inc | 511,243 | $164.5M | 0.03% | +9,117+1.8% | Added |
| Coatue Management LLCSuperinvestorCoatue Management | 583,597 | $187.8M | 0.65% | −94,312−13.9% | Reduced |
| Morgan Stanley | 586,743 | $188.8M | 0.01% | +96,832+19.8% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 604,677 | $194.5M | 0.26% | +46,900+8.4% | Added |
| FMR LLC | 627,901 | $202.0M | 0.01% | −36,689−5.5% | Reduced |
| Canada Pension Plan Investment Board | 638,964 | $205.6M | 0.13% | +488,849+325.6% | Added |
| AQR Capital Management LLC | 660,054 | $209.5M | 0.10% | −70,925−9.7% | Reduced |
| Bank of New York Mellon Corp | 656,104 | $211.1M | 0.04% | +19,745+3.1% | Added |
| Nordea Investment Management AB | 733,628 | $228.8M | 0.21% | −416,641−36.2% | Reduced |
| Electron Capital Partners, LLC | 713,013 | $229.4M | 10.78% | −91,290−11.4% | Reduced |
| Dimensional Fund Advisors LP | 731,650 | $235.3M | 0.05% | −139,196−16.0% | Reduced |
| Invesco Ltd. | 1,225,757 | $394.4M | 0.04% | −294,273−19.4% | Reduced |
| Hood River Capital Management LLC | 1,295,385 | $416.8M | 4.18% | −188,276−12.7% | Reduced |