MastecMTZ
13F holders, Q1 2026 (March 31)811holders +116
169new positions
60sold out
11famous investors
$321.19avg. 13F price*
At the end of Q1 2026, 811 institutions reported holding Mastec Inc. (MTZ) in their 13F filings, up 116 from Q4 2025. 169 opened new positions and 60 sold out. The largest holders were BlackRock, Inc. ($2.4B), Peconic Partners LLC ($1.2B) and Vanguard Capital Management LLC ($902.3M). 11 famous investors held it, including Dan Loeb (5.0% of Third Point's portfolio), Stephen Mandel (3.9% of Lone Pine Capital's portfolio) and Philippe Laffont (0.6% of Coatue Management's portfolio).
- Company
- Mastec Inc.
- CUSIP
- 576323109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 169 | $1.1B |
| Exits | 60 | $322.9M |
All 13F filers, Q4 2025 → Q1 2026: 9,117,575 shares bought and 9,777,175 shares sold, net −659,600 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 811 holders
| BlackRock, Inc. | 0.04% | Add +2.8% | 7,309,609 | $2.4B |
| Peconic Partners LLC | 19.92% | Add +123.7% | 3,578,431 | $1.2B |
| Vanguard Capital Management LLC | 0.02% | — | 2,804,295 | $902.3M |
| Vanguard Portfolio Management LLC | 0.05% | — | 2,770,038 | $891.2M |
| Hill City Capital, LP | 24.77% | No change | 2,155,000 | $693.3M |
| State Street Corp. | 0.02% | Add +2.4% | 1,869,788 | $601.6M |
| Victory Capital Management Inc. | 0.33% | Reduce -39.6% | 1,592,523 | $512.4M |
| Lone Pine Capital | 3.93% | New | 1,531,050 | $492.6M |
| First Trust Advisors LP | 0.32% | Add +7.6% | 1,411,584 | $454.2M |
| Geode Capital Management, LLC | 0.03% | Add +12.4% | 1,371,909 | $441.5M |
| Bank of America Corp. | 0.03% | Add +6.0% | 1,330,066 | $427.9M |
| Hood River Capital Management LLC | 4.18% | Reduce -12.7% | 1,295,385 | $416.8M |
| Invesco Ltd. | 0.04% | Reduce -19.4% | 1,225,757 | $394.4M |
| Dimensional Fund Advisors LP | 0.05% | Reduce -16.0% | 731,650 | $235.3M |
| Electron Capital Partners, LLC | 10.78% | Reduce -11.3% | 713,013 | $229.4M |
| Nordea Investment Management AB | 0.21% | Reduce -36.2% | 733,628 | $228.8M |
| Bank of New York Mellon Corp | 0.04% | Add +3.1% | 656,104 | $211.1M |
| AQR Capital Management | 0.10% | Reduce -9.7% | 660,054 | $209.5M |
| Canada Pension Plan Investment Board | 0.13% | Add +325.6% | 638,964 | $205.6M |
| FMR LLC | 0.01% | Reduce -5.5% | 627,901 | $202.0M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.27% | Add +8.4% | 604,677 | $194.5M |
| Morgan Stanley | 0.01% | Add +19.8% | 586,743 | $188.8M |
| Coatue Management | 0.65% | Reduce -13.9% | 583,597 | $187.8M |
| Charles Schwab Investment Management Inc. | 0.03% | Add +1.8% | 511,243 | $164.5M |
| Millennium Management | 0.13% | Reduce -31.3% | 503,199 | $161.9M |
| Qube Research & Technologies Ltd | 0.22% | Add +34.5% | 485,385 | $156.2M |
| Goldman Sachs Group Inc. | 0.02% | Add +35.3% | 474,514 | $152.7M |
| Northern Trust Corp. | 0.02% | Add +3.7% | 472,583 | $152.0M |
| Point72 Asset Management | 0.25% | Reduce -39.9% | 433,058 | $139.3M |
| Vanguard Fiduciary Trust Co. | 0.03% | — | 383,817 | $123.5M |
| UBS Group AG | 0.02% | Reduce -15.5% | 381,115 | $122.6M |
| Nomura Asset Management International Inc. | 0.19% | Reduce -37.8% | 337,823 | $108.7M |
| 140 Summer Partners LP | 9.35% | Reduce -12.0% | 329,220 | $105.9M |
| Third Point | 4.97% | Reduce -65.4% | 320,000 | $103.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.02% | Reduce -0.7% | 316,149 | $101.7M |
| BNP Paribas Financial Markets | 0.07% | Add +83.2% | 313,383 | $100.8M |
| Citadel Advisors | 0.06% | Add +1215.5% | 279,778 | $90.0M |
| Forest Avenue Capital Management LP | 5.49% | Reduce -45.4% | 269,851 | $86.8M |
| Assenagon Asset Management S.A. | 0.13% | Add +55.1% | 255,222 | $82.1M |
| Westfield Capital Management Co. LP | 0.34% | New | 249,980 | $80.4M |
| Bessemer Group Inc. | 0.12% | Add +8079.3% | 231,965 | $74.6M |
| Ameriprise Financial Inc. | 0.02% | Reduce -0.3% | 231,796 | $74.6M |
| Raymond James Financial Inc. | 0.02% | Reduce -15.6% | 231,899 | $73.7M |
| Arrowstreet Capital, Limited Partnership | 0.04% | Add +47.9% | 227,284 | $73.1M |
| Squarepoint Ops LLC | 0.16% | Add +96.8% | 225,650 | $72.6M |
| Anomaly Capital Management, LP | 4.37% | New | 224,498 | $72.2M |
| Merewether Investment Management, LP | 1.39% | Reduce -60.8% | 223,061 | $71.8M |
| Freestone Grove Partners LP | 0.51% | Reduce -51.6% | 220,400 | $70.9M |
| Bowen Hanes & Co. Inc. | 1.69% | Add +10.3% | 215,465 | $69.3M |
| Hennessy Advisors Inc. | 2.38% | Reduce -9.5% | 205,100 | $66.0M |
| JPMorgan Chase & Co. | 0.00% | Reduce -6.6% | 202,002 | $61.8M |
| Manufacturers Life Insurance Company, The | 0.05% | Reduce -21.5% | 187,950 | $60.5M |
| Lord, Abbett & Co. LLC | 0.20% | Reduce -31.1% | 184,274 | $59.3M |
| OP Asset Management Ltd | 0.59% | Reduce -0.9% | 183,332 | $59.0M |
| Vontobel Holding Ltd. | 0.20% | Add +11.4% | 180,481 | $58.1M |
| Amundi | 0.01% | Add +145.4% | 171,587 | $55.2M |
| Gotham Asset Management | 0.17% | Reduce -17.7% | 170,770 | $54.9M |
| Rhumbline Advisers | 0.05% | Add +2.1% | 168,113 | $54.1M |
| Nuveen, LLC | 0.01% | Add +1.6% | 161,541 | $52.0M |
| Kirr Marbach & Co. LLC | 9.39% | Reduce -4.4% | 160,197 | $51.5M |
| Northwestern Mutual Wealth Management Co. | 0.03% | Reduce -19.2% | 152,681 | $49.1M |
| Goodlander Investment Management, LLC | 16.14% | Reduce -14.7% | 145,000 | $46.7M |
| Hillman Co. | 18.10% | No change | 144,689 | $46.6M |
| Schroder Investment Management Group | 0.04% | Reduce -27.8% | 144,548 | $46.5M |
| SG Americas Securities, LLC | 0.05% | Add +366.3% | 138,809 | $44.7M |
| Samlyn Capital, LLC | 0.76% | Reduce -54.9% | 138,080 | $44.4M |
| Principal Financial Group Inc. | 0.02% | Reduce -8.7% | 137,151 | $44.1M |
| Country Trust Bank | 0.81% | Reduce -31.5% | 131,651 | $42.4M |
| Balyasny Asset Management L.P. | 0.09% | Add +0.4% | 128,628 | $41.4M |
| Swiss National Bank | 0.02% | Add +1.2% | 126,000 | $40.5M |
| Algert Global LLC | 0.57% | Reduce -6.5% | 118,056 | $38.0M |
| Wells Fargo & Company | 0.01% | Reduce -14.1% | 117,012 | $37.6M |
| California Public Employees Retirement System | 0.02% | Reduce -0.2% | 116,324 | $37.4M |
| Newbrook Capital Advisors LP | 6.76% | New | 112,985 | $36.4M |
| ThornTree Capital Partners LP | 6.44% | New | 112,741 | $36.3M |
| Community Trust & Investment Co. | 1.92% | Reduce -11.4% | 109,913 | $35.4M |
| Driehaus Capital Management LLC | 0.25% | Reduce -0.2% | 104,002 | $33.5M |
| Federated Hermes, Inc. | 0.05% | Reduce -3.7% | 102,905 | $33.1M |
| Holocene Advisors, LP | 0.08% | Reduce -75.1% | 101,724 | $32.7M |
| Webs Creek Capital Management LP | 5.66% | Reduce -49.7% | 101,590 | $32.7M |
| Two Sigma Investments, LP | 0.03% | Add +4.2% | 100,326 | $32.3M |
| Jennison Associates LLC | 0.02% | Reduce -3.3% | 99,486 | $32.0M |
| Envestnet Asset Management Inc. | 0.01% | Add +35.1% | 94,548 | $30.4M |
| Jane Street Group, LLC | 0.03% | Add +2537.0% | 93,956 | $30.2M |
| Legacy Advisors, LLC | 3.56% | Reduce -75.3% | 93,953 | $30.2M |
| Trexquant Investment LP | 0.21% | New | 92,112 | $29.6M |
| Legal & General Group Plc | 0.01% | Reduce -5.1% | 91,862 | $29.6M |
| Brevan Howard Capital Management LP | 0.30% | Add +994.6% | 94,669 | $29.5M |
| Sei Investments Co. | 0.03% | Reduce -12.4% | 89,109 | $28.7M |
| Alyeska Investment Group, L.P. | 0.08% | Add +113.9% | 87,486 | $28.1M |
| Quantinno Capital Management LP | 0.05% | Add +15.3% | 84,387 | $27.2M |
| Cooper Creek Partners Management LLC | 1.30% | Reduce -54.5% | 83,706 | $26.9M |
| LGT Group Foundation | 0.32% | New | 81,169 | $26.1M |
| LPL Financial LLC | 0.01% | Reduce -2.7% | 80,847 | $26.0M |
| Toronto Dominion Bank | 0.05% | Add +190435.7% | 80,025 | $25.7M |
| Makena Capital Management LLC | 2.94% | Reduce -22.6% | 79,225 | $25.5M |
| Retirement Systems of Alabama | 0.08% | Add +2.1% | 75,196 | $24.2M |
| Russell Investments Group, Ltd. | 0.03% | Reduce -60.1% | 74,850 | $24.1M |
| California State Teachers Retirement System | 0.02% | Add +22.1% | 73,004 | $23.5M |
| CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT | 1.14% | Add +0.6% | 70,900 | $22.8M |
"% of holder's portfolio" is MTZ's weight in each manager's 13F, not the share of Mastec Inc. the manager owns.