Skip to main content

Mastec Inc

MTZ
Exchange
NYSE
Industry
Water, Sewer, Pipeline, Comm & Power Line Construction
SEC CIK
0000015615

In the last 90 days, Mastec Inc insiders filed 0 open-market purchases and 1 sale; 916 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 2025

Institutional positions in Mastec Inc as of Jun 30, 2025. 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
597
+75 vs. Q1 2025
Shares held
55.9M
−422.9K (−0.8%) vs. Q1 2025
Total value
$9.50B
+$2.94B (+44.9%) vs. Q1 2025
New holders
119
205 more added
Sold out
44
187 more reduced

5 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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.

Institutional holdersQ2 2025: 597 institutions
Q1 2021: 392 institutionsQ2 2021: 415 institutionsQ3 2021: 366 institutionsQ4 2021: 388 institutionsQ1 2022: 388 institutionsQ2 2022: 356 institutionsQ3 2022: 338 institutionsQ4 2022: 386 institutionsQ1 2023: 394 institutionsQ2 2023: 393 institutionsQ3 2023: 382 institutionsQ4 2023: 369 institutionsQ1 2024: 383 institutionsQ2 2024: 431 institutionsQ3 2024: 471 institutionsQ4 2024: 534 institutionsQ1 2025: 527 institutionsQ2 2025: 597 institutionsQ3 2025: 656 institutionsQ4 2025: 699 institutionsQ1 2026: 817 institutionsQ2 2026: 916 institutions
Value heldQ2 2025: $9.50B
Q1 2021: $5.59BQ2 2021: $5.77BQ3 2021: $4.53BQ4 2021: $4.77BQ1 2022: $4.70BQ2 2022: $3.91BQ3 2022: $3.53BQ4 2022: $4.97BQ1 2023: $5.49BQ2 2023: $6.85BQ3 2023: $4.11BQ4 2023: $4.66BQ1 2024: $5.51BQ2 2024: $6.35BQ3 2024: $7.09BQ4 2024: $7.83BQ1 2025: $6.56BQ2 2025: $9.50BQ3 2025: $12.2BQ4 2025: $12.8BQ1 2026: $18.6BQ2 2026: $24.7B
Institutions holding MTZ and their total value by quarter
QuarterHoldersValue
Q2 2026916$24.7B
Q1 2026817$18.6B
Q4 2025699$12.8B
Q3 2025656$12.2B
Q2 2025597$9.50B
Q1 2025527$6.56B
Q4 2024534$7.83B
Q3 2024471$7.09B
Q2 2024431$6.35B
Q1 2024383$5.51B
Q4 2023369$4.66B
Q3 2023382$4.11B
Q2 2023393$6.85B
Q1 2023394$5.49B
Q4 2022386$4.97B
Q3 2022338$3.53B
Q2 2022356$3.91B
Q1 2022388$4.70B
Q4 2021388$4.77B
Q3 2021366$4.53B
Q2 2021415$5.77B
Q1 2021392$5.59B

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Mastec Inc; share changes are against Q1 2025.

Institutions holding MTZ in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.8,164,167$1.39B0.03%+492,928+6.4%Added
Vanguard Group Inc5,972,293$1.02B0.02%+234,594+4.1%Added
Hill City Capital, LP2,155,000$367.3M19.77%+10,000+0.5%Added
State Street Corp1,873,531$319.3M0.01%−43,754−2.3%Reduced
Invesco Ltd.1,765,049$300.8M0.05%+102,072+6.1%Added
Hood River Capital Management LLC1,692,656$288.5M4.03%+138,269+8.9%Added
Nordea Investment Management AB1,378,230$234.6M0.22%−416,074−23.2%Reduced
Dimensional Fund Advisors LP1,105,398$188.4M0.04%−114,297−9.4%Reduced
Geode Capital Management, LLC1,102,279$187.9M0.01%−2,939−0.3%Reduced
Millennium Management LLC1,077,822$183.7M0.16%+131,476+13.9%Added
AQR Capital Management LLC1,072,253$182.0M0.15%+108,504+11.3%Added
Point72 Asset Management, L.P.895,505$152.6M0.36%+689,484+334.7%Added
Goldman Sachs Group Inc823,590$140.4M0.02%−220,391−21.1%Reduced
Electron Capital Partners, LLC747,333$127.4M6.81%+14,504+2.0%Added
Macquarie Group Ltd696,776$118.8M0.15%−74,515−9.7%Reduced
First Trust Advisors LP671,947$114.5M0.09%−66,498−9.0%Reduced
Bank of America Corp662,741$113.0M0.01%−31,048−4.5%Reduced
UBS Group AG651,563$111.0M0.02%+71,080+12.2%Added
Freestone Grove Partners LP635,616$108.3M0.82%+207,801+48.6%Added
Charles Schwab Investment Management Inc612,487$104.4M0.02%+611+0.1%Added
Ameriprise Financial Inc555,486$94.7M0.02%+164,722+42.2%Added
Bank of New York Mellon Corp552,044$94.1M0.02%−8,666−1.5%Reduced
Merewether Investment Management, LP542,740$92.5M2.66%−218,276−28.7%Reduced
Morgan Stanley528,941$90.1M0.01%+52,238+11.0%Added
Mirae Asset Global ETFs Holdings Ltd.525,912$89.6M0.17%−7,474−1.4%Reduced
Qube Research & Technologies Ltd506,857$86.4M0.12%+399,007+370.0%Added
Northern Trust Corp480,200$81.8M0.01%−14,938−3.0%Reduced
Jacobs Levy Equity Management, Inc428,528$73.0M0.29%−13,835−3.1%Reduced
Cooper Creek Partners Management LLC423,918$72.2M2.40%−290,125−40.6%Reduced
Samlyn Capital, LLC382,577$65.2M0.95%−23,652−5.8%Reduced
JPMorgan Chase & Co381,010$64.9M0.00%−65,105−14.6%Reduced
DnB Asset Management AS364,548$62.1M0.26%+9,326+2.6%Added
Arrowstreet Capital, Limited Partnership364,278$62.1M0.04%+115,602+46.5%Added
Blackstone Group Inc.350,000$59.7M0.27%+35,000+11.1%Added
Balyasny Asset Management LLC345,836$58.9M0.13%−235,608−40.5%Reduced
D. E. Shaw & Co., Inc.340,100$58.0M0.06%+294,196+640.9%Added
Lord, Abbett & Co. LLC334,756$57.1M0.18%+27,337+8.9%Added
Manufacturers Life Insurance Company, The331,056$56.4M0.05%+54,177+19.6%Added
UBS Asset Management Americas Inc313,500$53.4M0.01%+26,843+9.4%Added
Cartenna Capital, LP300,000$51.1M3.13%+300,000New
Assenagon Asset Management S.A.281,171$47.9M0.08%+35,940+14.7%Added
Raymond James Financial Inc275,508$47.0M0.02%+103,409+60.1%Added
Country Trust Bank271,424$46.3M1.04%−32,124−10.6%Reduced
Alliancebernstein L.P.271,217$46.2M0.02%−691,433−71.8%Reduced
Jane Street Group, LLC244,356$41.6M0.07%+11,705+5.0%Added
Orbis Allan Gray Ltd239,407$40.8M0.20%+11,648+5.1%Added
Gotham Asset Management, LLC234,905$40.0M0.24%+52,517+28.8%Added
Principal Financial Group Inc232,269$39.6M0.02%+90,594+63.9%Added
Goodlander Investment Management, LLC200,000$34.1M13.99%+4,865+2.5%Added
Vontobel Holding Ltd.198,056$33.8M0.11%−54,112−21.5%Reduced
Schonfeld Strategic Advisors LLC190,647$32.5M0.24%−29,921−13.6%Reduced
Canada Pension Plan Investment Board187,725$32.0M0.03%−71,676−27.6%Reduced
Wolf Hill Capital Management, LP175,000$29.8M2.48%+25,000+16.7%Added
Nuveen, LLC171,985$29.3M0.01%−9,732−5.4%Reduced
Kirr Marbach & Co LLC171,631$29.3M5.78%+1,096+0.6%Added
Rhumbline Advisers170,802$29.1M0.02%+2,176+1.3%Added
Candriam Luxembourg S.C.A.164,497$28.0M0.16%+122,568+292.3%Added
Prudential Financial Inc155,520$26.5M0.03%−144,764−48.2%Reduced
Makena Capital Management LLC151,806$25.9M2.59%−23,812−13.6%Reduced
Community Trust & Investment Co148,485$25.3M1.46%−14,433−8.9%Reduced
Barclays PLC143,686$24.5M0.01%−226,494−61.2%Reduced
Mackenzie Financial Corp137,405$23.4M0.03%−153,210−52.7%Reduced
Toronto Dominion Bank125,097$21.3M0.05%+124,878+57,021.9%Added
ACK Asset Management LLC125,000$21.3M2.80%−337,700−73.0%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)123,246$21.0M0.05%−7,820−6.0%Reduced
Great Lakes Advisors, LLC121,075$20.6M0.17%+16,469+15.7%Added
Swiss National Bank120,800$20.6M0.01%−2,000−1.6%Reduced
Walleye Capital LLC116,460$19.8M0.18%+53,136+83.9%Added
Trexquant Investment LP116,089$19.8M0.22%+52,939+83.8%Added
Verition Fund Management LLC116,061$19.8M0.11%−9,082−7.3%Reduced
California Public Employees Retirement System111,137$18.9M0.01%+6,976+6.7%Added
Muhlenkamp & Co Inc106,084$18.1M5.64%+625+0.6%Added
Russell Investments Group, Ltd.105,960$18.1M0.02%+227+0.2%Added
LPL Financial LLC105,769$18.0M0.01%−24,545−18.8%Reduced
Legal & General Group Plc103,237$17.6M0.00%+3,273+3.3%Added
Wells Fargo & Company99,086$16.9M0.00%+33,098+50.2%Added
SEI Investments Co95,849$16.3M0.02%+24,578+34.5%Added
Cubist Systematic Strategies, LLC94,546$16.1M0.17%+94,546New
HSBC Holdings PLC93,779$16.1M0.01%−17,195−15.5%Reduced
Scopus Asset Management, L.P.93,861$16.0M0.43%+58,138+162.7%Added
State of Wisconsin Investment Board93,525$15.9M0.04%−5,720−5.8%Reduced
Daiwa Securities Group Inc.92,800$15.8M0.06%+4,700+5.3%Added
Raiffeisen Bank International AG91,000$15.3M0.23%00.0%Unchanged
Two Sigma Investments, LP87,345$14.9M0.03%+70,797+427.8%Added
Citadel Advisors LLC86,162$14.7M0.01%−89,608−51.0%Reduced
Frontier Capital Management Co LLC83,661$14.3M0.13%−29,915−26.3%Reduced
Royal Bank of Canada81,843$13.9M0.00%+43,394+112.9%Added
Jennison Associates LLC81,830$13.9M0.01%+8,158+11.1%Added
Marshall Wace, LLP79,456$13.5M0.02%−188,598−70.4%Reduced
Sterling Capital Management LLC79,049$13.5M0.19%+11,071+16.3%Added
Moran Wealth Management, LLC78,993$13.5M0.42%−4,056−4.9%Reduced
Pinebridge Investments, L.P.77,531$13.2M0.11%−7,786−9.1%Reduced
Edmond de Rothschild Holding S.A.75,000$12.8M0.20%−9,000−10.7%Reduced
Retirement Systems of Alabama74,932$12.8M0.05%+10.0%Added
Lazard Asset Management LLC74,645$12.7M0.02%+72,255+3,023.2%Added
Norges Bank73,355$12.5M0.00%+22,358+43.8%Added
Schroder Investment Management Group72,559$12.4M0.01%+72,559New
Natixis72,059$12.3M0.06%+62,411+646.9%Added
Bank of Nova Scotia71,045$12.1M0.02%−22,307−23.9%Reduced
Temasek Holdings (Private) Ltd70,988$12.1M0.05%−60,822−46.1%Reduced