MASTEC INC (MTZ)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
873
Reporting holders
$25.9B
Reported value
75.0%
Of shares outstanding
3.5%
Held as options
+106
Holder change
Institutions report 60,200,961 shares against 80,304,948 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $3.2B | 7,638,487 | 0.05% | 8q | +4.5%+$136.8M |
| Hill City Capital, LP | $1.8B | 4,310,000 | 21.88% | 15q | +100.0%+$896.6M |
| PECONIC PARTNERS LLC | $1.5B | 3,678,431 | 19.02% | 4q | +2.8%+$41.6M |
| VANGUARD CAPITAL MANAGEMENT LLC | $1.2B | 2,831,849 | 0.03% | 2q | +1.0%+$11.5M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $1.2B | 2,812,131 | 0.05% | 2q | +1.5%+$17.5M |
| STATE STREET CORP | $934.0M | 2,244,771 | 0.03% | 31q | +20.1%+$156.0M |
| JPMORGAN CHASE & CO | $566.8M | 1,318,161 | 0.03% | 31q | +552.5%+$480.0M |
| LONE PINE CAPITAL LLC | $559.7M | 1,345,157 | 3.42% | 2q | -12.1%-$77.3M |
| BANK OF AMERICA CORP /DE/ | $555.8M | 1,335,924 | 0.04% | 31q | HELD |
| FIRST TRUST ADVISORS LP | $552.7M | 1,328,399 | 0.33% | 31q | -5.9%-$34.6M |
| GEODE CAPITAL MANAGEMENT, LLC | $530.4M | 1,278,139 | 0.03% | 31q | -6.8%-$38.9M |
| Invesco Ltd. | $516.5M | 1,241,384 | 0.04% | 31q | +1.3%+$6.5M |
| VICTORY CAPITAL MANAGEMENT INC | $503.5M | 1,210,079 | 0.28% | 31q | -24.0%-$159.1M |
| Hood River Capital Management LLC | $488.4M | 1,173,918 | 3.54% | 23q | -9.4%-$50.5M |
| FMR LLC | $370.3M | 890,103 | 0.02% | 31q | +41.8%+$109.1M |
| AMERIPRISE FINANCIAL INC | $305.8M | 734,976 | 0.06% | 31q | +58.5%+$112.9M |
| Bank of New York Mellon Corp | $280.5M | 674,288 | 0.05% | 31q | +2.8%+$7.6M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $274.8M | 660,440 | 0.33% | 9q | +9.2%+$23.2M |
| AQR CAPITAL MANAGEMENT LLC | $273.6M | 657,603 | 0.10% | 30q | HELD |
| MORGAN STANLEY | $271.9M | 653,503 | 0.01% | 35q | +11.4%+$27.8M |
| DIMENSIONAL FUND ADVISORS LP | $264.8M | 636,286 | 0.05% | 31q | -13.0%-$39.7M |
| Electron Capital Partners, LLC | $258.0M | 620,190 | 10.30% | 23q | -13.0%-$38.6M |
| CANADA PENSION PLAN INVESTMENT BOARD | $257.9M | 619,910 | 0.14% | 10q | -3.0%-$7.9M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $229.4M | 551,319 | 0.03% | 31q | +7.8%+$16.7M |
| Sixth Street Partners Management Company, L.P. | $229.4M | 551,319 | 0.03% | new | NEW |
| GOLDMAN SACHS GROUP INC | $225.8M | 542,636 | 0.02% | 31q | +14.4%+$28.3M |
| NORDEA INVESTMENT MANAGEMENT AB | $225.5M | 529,463 | 0.18% | 31q | -27.8%-$86.9M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $220.5M | 26,689 | 0.02% | 31q | +122.8%+$121.5M |
| NORTHERN TRUST CORP | $215.4M | 517,643 | 0.03% | 31q | +9.5%+$18.7M |
| COATUE MANAGEMENT LLC | $215.2M | 517,250 | 0.44% | 3q | -11.4%-$27.6M |
| UBS Group AG | $212.1M | 509,843 | 0.03% | 31q | +33.8%+$53.6M |
| BNP PARIBAS FINANCIAL MARKETS | $181.7M | 436,602 | 0.06% | 31q | +39.3%+$51.3M |
| Qube Research & Technologies Ltd | $170.3M | 409,202 | 0.16% | 8q | -15.7%-$31.7M |
| CITADEL ADVISORS LLC | $168.7M | options only | 0.02% | 31q | OPTIONS |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $168.0M | 403,709 | 0.03% | 31q | +27.7%+$36.4M |
| VANGUARD FIDUCIARY TRUST CO | $166.1M | 399,194 | 0.04% | 2q | +4.0%+$6.4M |
| Amundi | $166.1M | 399,102 | 0.04% | 6q | +132.6%+$94.7M |
| JANE STREET GROUP, LLC | $159.4M | 4,464 | 0.01% | 31q | -95.2%-$3.2B |
| WESTFIELD CAPITAL MANAGEMENT CO LP | $155.8M | 374,457 | 0.51% | 2q | +49.8%+$51.8M |
| Anomaly Capital Management, LP | $127.7M | 306,921 | 4.88% | 2q | +36.7%+$34.3M |
| Third Point LLC | $120.7M | 290,000 | 2.58% | 4q | -9.4%-$12.5M |
| 140 Summer Partners LP | $111.6M | 268,168 | 7.97% | 4q | -18.5%-$25.4M |
| Assenagon Asset Management S.A. | $107.5M | 258,398 | 0.07% | 12q | +1.2%+$1.3M |
| Forest Avenue Capital Management LP | $103.4M | 248,627 | 4.34% | 4q | -7.9%-$8.8M |
| Freestone Grove Partners LP | $102.6M | 246,593 | 0.66% | 7q | +11.9%+$10.9M |
| Clearbridge Investments, LLC | $90.9M | 218,591 | 0.08% | new | NEW |
| FEDERATED HERMES, INC. | $90.1M | 216,660 | 0.13% | 31q | +110.5%+$47.3M |
| HENNESSY ADVISORS INC | $85.3M | 205,100 | 2.73% | 4q | HELD |
| D. E. Shaw & Co., Inc. | $79.5M | 180,243 | 0.04% | 9q | +237.8%+$56.0M |
| Merewether Investment Management, LP | $79.1M | 190,236 | 1.49% | 7q | -14.7%-$13.7M |
| Nuveen, LLC | $78.7M | 189,055 | 0.02% | 6q | +17.0%+$11.4M |
| RHUMBLINE ADVISERS | $78.5M | 188,673 | 0.06% | 31q | +12.2%+$8.6M |
| Legal & General Group Plc | $75.7M | 181,874 | 0.02% | 31q | +98.0%+$37.5M |
| Point72 Asset Management, L.P. | $73.9M | 156,309 | 0.08% | 16q | -63.9%-$130.8M |
| SCOPUS ASSET MANAGEMENT, L.P. | $72.0M | 62,944 | 1.01% | 15q | +75.5%+$31.0M |
| Swiss National Bank | $71.7M | 172,280 | 0.04% | 31q | +36.7%+$19.3M |
| MAPLELANE CAPITAL, LLC | $70.2M | 88,800 | 1.27% | new | NEW |
| BOWEN HANES & CO INC | $69.3M | 215,465 | 1.69% | 3q | HELD |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $69.2M | 166,345 | 0.03% | 7q | -26.8%-$25.4M |
| RAYMOND JAMES FINANCIAL INC | $68.8M | 165,376 | 0.02% | 7q | -28.7%-$27.7M |
| WELLS FARGO & COMPANY/MN | $65.3M | 119,416 | 0.01% | 31q | -49.0%-$62.7M |
| OP Asset Management Ltd | $64.5M | 154,952 | 0.69% | 6q | -15.5%-$11.8M |
| Gotham Asset Management, LLC | $63.1M | 151,587 | 0.15% | 19q | -11.2%-$8.0M |
| Yaupon Capital Management LP | $62.4M | options only | 1.23% | new | OPTIONS |
| IMC-Chicago, LLC | $61.5M | options only | 0.01% | 11q | OPTIONS |
| TORTOISE CAPITAL ADVISORS, L.L.C. | $59.8M | 143,731 | 0.61% | 4q | +683.7%+$52.2M |
| COUNTRY TRUST BANK | $58.9M | 141,500 | 1.03% | 19q | +7.5%+$4.1M |
| PRINCIPAL FINANCIAL GROUP INC | $57.9M | 139,227 | 0.03% | 31q | +1.5%+$863.7K |
| Quantinno Capital Management LP | $57.0M | 136,950 | 0.07% | 15q | +62.3%+$21.9M |
| Newbrook Capital Advisors LP | $55.9M | 134,430 | 7.55% | 2q | +19.0%+$8.9M |
| TWO SIGMA INVESTMENTS, LP | $55.7M | 125,069 | 0.04% | 15q | +24.7%+$11.0M |
| KIRR MARBACH & CO LLC /IN/ | $55.6M | 133,726 | 9.37% | 31q | -16.5%-$11.0M |
| HILLMAN CO | $54.5M | 130,909 | 19.27% | 4q | -9.5%-$5.7M |
| GROUP ONE TRADING LLC | $53.2M | options only | 0.07% | 31q | OPTIONS |
| California Public Employees Retirement System | $52.7M | 126,663 | 0.03% | 31q | +8.9%+$4.3M |
| Vontobel Holding Ltd. | $52.1M | 125,301 | 0.17% | 20q | -30.6%-$23.0M |
| Sumitomo Mitsui Trust Group, Inc. | $51.7M | 124,282 | 0.03% | 7q | +1270.0%+$47.9M |
| Legacy Advisors, LLC | $51.7M | 124,181 | 4.83% | 18q | +32.2%+$12.6M |
| DEUTSCHE BANK AG\ | $49.4M | 118,727 | 0.01% | 34q | +79.9%+$21.9M |
| SEI INVESTMENTS CO | $48.5M | 116,639 | 0.04% | 31q | +30.9%+$11.5M |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $46.6M | 112,100 | 0.07% | 2q | +614.0%+$40.1M |
| BARCLAYS PLC | $45.0M | 108,074 | 0.01% | 31q | +64.8%+$17.7M |
| Goodlander Investment Management, LLC | $43.7M | 105,000 | 13.19% | 7q | -27.6%-$16.6M |
| ENVESTNET ASSET MANAGEMENT INC | $43.1M | 103,679 | 0.01% | 31q | +9.7%+$3.8M |
| SAMLYN CAPITAL, LLC | $41.9M | 100,636 | 0.68% | 11q | -27.1%-$15.6M |
| JENNISON ASSOCIATES LLC | $39.0M | 93,701 | 0.02% | 10q | -5.8%-$2.4M |
| LPL Financial LLC | $38.8M | 93,274 | 0.01% | 23q | +15.4%+$5.2M |
| ROYAL BANK OF CANADA | $38.1M | 91,680 | 0.01% | 31q | +32.9%+$9.4M |
| ThornTree Capital Partners LP | $36.5M | 87,828 | 5.00% | 2q | -22.1%-$10.4M |
| HSBC HOLDINGS PLC | $35.9M | 86,514 | 0.01% | 31q | +48.2%+$11.7M |
| LGT Group Foundation | $35.5M | 85,310 | 0.40% | 2q | +5.1%+$1.7M |
| Zimmer Partners, LP | $35.4M | 85,000 | 0.81% | new | NEW |
| CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT | $34.4M | 82,800 | 1.54% | 7q | +16.8%+$5.0M |
| CITIGROUP INC | $32.7M | 78,536 | 0.01% | 31q | +42.3%+$9.7M |
| COMMUNITY TRUST & INVESTMENT CO | $30.7M | 73,763 | 1.58% | 31q | -32.9%-$15.0M |
| SCHRODER INVESTMENT MANAGEMENT GROUP | $30.2M | 72,508 | 0.02% | 5q | -49.8%-$30.0M |
| Mitsubishi UFJ Asset Management Co., Ltd. | $29.4M | 70,661 | 0.02% | 12q | +44063.1%+$29.3M |
| Webs Creek Capital Management LP | $29.2M | 70,080 | 5.52% | 4q | -31.0%-$13.1M |
| Russell Investments Group, Ltd. | $28.6M | 68,776 | 0.03% | 31q | -8.1%-$2.5M |
| Tidal Investments LLC | $28.2M | 67,844 | 0.05% | 13q | +114.9%+$15.1M |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-13 | 13D/A | Jose Ramon Mas INDIVIDUALwith 6 co-filers | 7.7% |
| 2026-08-13 | 13D/A | Jorge Mas INDIVIDUALwith 7 co-filers | 14.8% |
| 2026-07-29 | 13G/A | BlackRock, Inc. | 8.1% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 873 | $25.9B | 60,200,961 | 173 | 296 | 265 | 3.5% |
| Q1 2026 | 767 | $18.8B | 57,343,466 | 168 | 218 | 243 | 2.0% |
| Q4 2025 | 651 | $12.8B | 57,650,087 | 78 | 210 | 204 | 2.5% |
| Q3 2025 | 607 | $12.2B | 56,455,148 | 127 | 176 | 197 | 1.9% |
| Q2 2025 | 546 | $9.4B | 54,281,813 | 106 | 170 | 164 | 1.8% |
| Q1 2025 | 483 | $6.5B | 54,599,979 | 71 | 177 | 138 | 2.2% |
| Q4 2024 | 494 | $7.8B | 56,673,865 | 81 | 157 | 141 | 2.1% |
| Q3 2024 | 432 | $7.2B | 56,604,902 | 76 | 120 | 133 | 3.4% |
| Q2 2024 | 394 | $6.5B | 58,611,772 | 70 | 116 | 126 | 3.8% |
| Q1 2024 | 350 | $5.8B | 58,907,681 | 49 | 94 | 120 | 5.0% |
| Q4 2023 | 333 | $4.9B | 62,300,171 | 50 | 106 | 99 | 4.4% |
| Q3 2023 | 335 | $4.0B | 54,776,971 | 48 | 91 | 119 | 1.7% |
| Q2 2023 | 344 | $6.6B | 55,686,924 | 32 | 98 | 130 | 0.9% |
| Q1 2023 | 332 | $5.2B | 54,716,683 | 36 | 98 | 116 | 1.0% |
| Q4 2022 | 303 | $4.4B | 50,627,596 | 64 | 90 | 91 | 1.0% |
| Q3 2022 | 340 | $3.6B | 55,527,081 | 39 | 90 | 124 | 0.8% |
| Q2 2022 | 356 | $4.0B | 54,597,010 | 32 | 103 | 140 | 1.0% |
| Q1 2022 | 385 | $4.8B | 54,466,054 | 51 | 143 | 110 | 0.7% |
| Q4 2021 | 391 | $4.8B | 51,779,427 | 51 | 98 | 134 | 1.0% |
| Q3 2021 | 368 | $4.6B | 52,434,287 | 31 | 119 | 125 | 1.9% |
| Q2 2021 | 419 | $5.9B | 54,467,999 | 62 | 110 | 165 | 1.5% |
| Q1 2021 | 398 | $5.7B | 59,645,519 | 82 | 107 | 134 | 1.4% |
| Q4 2020 | 359 | $4.3B | 61,588,852 | 62 | 94 | 137 | 1.7% |
| Q3 2020 | 326 | $2.6B | 61,708,233 | 44 | 85 | 140 | 1.2% |
| Q2 2020 | 319 | $3.0B | 65,723,320 | 56 | 91 | 127 | 1.3% |
| Q1 2020 | 314 | $2.1B | 61,240,031 | 28 | 108 | 127 | 2.0% |
| Q4 2019 | 397 | $4.3B | 64,814,977 | 65 | 115 | 150 | 2.5% |
| Q3 2019 | 369 | $4.1B | 61,280,472 | 82 | 93 | 141 | 2.6% |
| Q2 2019 | 318 | $3.7B | 71,527,097 | 39 | 88 | 120 | 1.1% |
| Q1 2019 | 336 | $3.2B | 65,895,238 | 62 | 76 | 128 | 2.4% |
| Q4 2018 | 304 | $2.9B | 68,801,471 | 5 | 11 | 2 | 3.4% |