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Livermore
Livermore
ZHEN

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.

Q3 2025 vs. Q2 2025

How the institutions holding Mastec Inc changed between Q2 2025 and Q3 2025.

All holders in Q3 2025All holders in Q2 2025

13F holders of MTZ: Q2 2025 compared with Q3 2025
MeasureQ2 2025Of which not filed for Q3 2025Q3 2025Change
Holders5947652+65
Shares55.9M90.2K57.3M+1.49M (+2.7%)
Value$9.50B$15.4M$12.2B+$2.69B (+28.4%)

7 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (138)

Institutions that held Mastec Inc at the end of Q3 2025 but not at the end of Q2 2025.

Showing the largest 100 of 138 by value.

Institutions new to MTZ in Q3 2025
InstitutionSharesValue% of portfolio
Peconic Partners LLC750,000$159.6M4.41%
Third Point LLCSuperinvestorThird Point725,000$154.3M1.84%
Forest Avenue Capital Management LP421,874$89.8M6.74%
140 Summer Partners LP383,038$81.5M7.22%
Hennessy Advisors Inc239,200$50.9M1.76%
Aventail Capital Group, LP104,731$22.3M1.06%
Hillman Co104,216$22.2M6.85%
Maplelane Capital, LLC101,000$21.5M1.03%
Driehaus Capital Management LLC97,863$20.8M0.15%
1832 Asset Management L.P.94,500$20.1M0.03%
Webs Creek Capital Management LP56,400$12.0M2.50%
Yaupon Capital Management LP42,276$9.00M0.46%
Lighthouse Investment Partners, LLC32,500$6.92M0.25%
Voloridge Investment Management, LLC30,033$6.39M0.02%
AXA Investment Managers S.A.25,923$5.52M0.01%
Walleye Trading LLC23,622$5.03M0.08%
AMF Pensionsforsakring AB23,604$5.02M0.03%
ExodusPoint Capital Management, LP20,193$4.30M0.06%
Ardsley Advisory Partners LP20,000$4.26M0.65%
UBS Oconnor LLC19,080$4.06M0.12%
TCW Group Inc18,901$4.02M0.03%
Voleon Capital Management LP18,241$3.88M0.09%
Caisse de Depot Et Placement du Quebec16,500$3.51M0.01%
L & S Advisors Inc15,863$3.38M0.32%
Otter Creek Advisors, LLC15,810$3.37M3.34%
Mubadala Investment Co PJSC15,320$3.26M0.02%
Bridgeway Capital Management, LLC14,820$3.15M0.07%
Vennlight Capital Management, LP14,556$3.10M4.03%
Credit Agricole S A13,846$2.95M0.01%
Dorsey Wright & Associates12,377$2.63M0.59%
Gallo Partners, LP10,800$2.30M1.73%
CIBC World Markets Inc.10,763$2.29M0.00%
DRW Securities, LLC10,524$2.24M0.12%
Calamos Advisors LLC9,641$2.05M0.01%
Tortoise Capital Advisors, L.L.C.9,264$1.97M0.03%
Fidelis Capital Partners, LLC8,789$1.87M0.15%
Oppenheimer & Co Inc8,472$1.80M0.02%
Hedeker Wealth, LLC8,361$1.78M0.37%
Ninepoint Partners LP8,361$1.78M0.25%
Caption Management, LLC7,300$1.55M0.09%
Summit Trail Advisors, LLC6,736$1.43M0.02%
Ossiam6,545$1.39M0.02%
LMR Partners LLP5,965$1.27M0.02%
Williamson Legacy Group, LLC5,909$1.26M0.97%
Kestra Investment Management, LLC5,550$1.18M0.03%
Dark Forest Capital Management LP5,098$1.08M0.04%
SPX Equities Gestao de Recursos Ltda4,200$893.8K0.07%
Advisory Services Network, LLC4,196$893.0K0.01%
Union Bancaire Privee, UBP SA4,808$873.4K0.02%
Sheets Smith Investment Management4,011$853.6K0.55%
Shay Capital LLC4,000$851.2K0.15%
Rockefeller Capital Management L.P.3,957$842.1K0.00%
Allianz SE3,941$838.7K0.02%
Chesapeake Capital Corp3,405$724.6K0.65%
StoneX Group Inc.3,335$709.7K0.03%
Occudo Quantitative Strategies LP3,322$707.0K0.09%
Edgestream Partners, L.P.2,984$635.0K0.02%
Rossby Financial, LCC2,750$591.3K0.20%
Krilogy Financial LLC2,883$573.9K0.02%
Alamea Verwaltungs GmbH2,632$560.1K0.38%
Park Avenue Securities LLC2,560$545.0K0.00%
Whalen Wealth Management Inc.2,499$531.8K0.31%
Worldquant Millennium Advisors LLC2,495$531.0K0.00%
Chicago Capital, LLC2,281$485.4K0.01%
Brookwood Investment Group LLC2,210$470.3K0.06%
Yorktown Management & Research Co Inc2,200$468.2K0.37%
Stanley-Laman Group, Ltd.2,136$454.6K0.07%
Pine Valley Investments Ltd Liability Co2,000$425.6K0.02%
Jain Global LLC1,970$419.2K0.01%
Roberts Glore & Co Inc1,810$385.2K0.11%
Optimize Financial Inc1,774$377.5K0.20%
Smith Group Asset Management, LLC1,730$368.2K0.02%
Aspen Investment Management Inc1,645$350.0K0.14%
Dymon Asia Capital (Singapore) Pte. Ltd.1,591$338.6K0.14%
Chicago Trust Co NA1,507$320.7K0.04%
Perigon Wealth Management, LLC1,441$306.7K0.01%
Brand Asset Management Group, Inc.1,428$303.9K0.09%
EntryPoint Capital, LLC1,425$303.3K0.12%
Ashton Thomas Private Wealth, LLC1,410$300.1K0.01%
Savvy Advisors, Inc.1,384$294.5K0.01%
Transcend Wealth Collective, LLC1,348$286.9K0.02%
Jag Capital Management, LLC1,314$279.6K0.03%
Arcadia Investment Management Corp1,292$275.0K0.04%
Mindset Wealth Management, LLC1,290$274.5K0.07%
Snowden Capital Advisors LLC1,250$266.0K0.01%
Aaron Wealth Advisors1,241$264.1K0.02%
PEAK6 LLC1,234$262.6K0.01%
Journey Strategic Wealth LLC1,232$262.2K0.01%
Caerus Investment Advisors, LLC1,212$257.9K0.11%
Allianz Asset Management GmbH1,207$256.9K0.00%
Wealthcare Advisory Partners LLC1,190$253.2K0.01%
Kovitz Investment Group Partners, LLC1,186$252.4K0.00%
Independent Financial Group, LLC1,139$242.4K0.01%
Flow Traders U.S. LLC1,122$239.0K0.01%
Donaldson Capital Management, LLC1,100$234.1K0.01%
Change Path, LLC1,100$234.1K0.01%
waypoint wealth counsel1,100$234.1K0.09%
Kaufman Rossin Wealth, LLC1,079$229.6K0.13%
Pinnacle Associates Ltd1,074$228.6K0.00%
Cooper Financial Group1,065$226.6K0.03%

Sold out (73)

Institutions that held Mastec Inc at the end of Q2 2025 and filed for Q3 2025 without it.

Institutions that sold out of MTZ in Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
Cartenna Capital, LP300,000$51.1M
Toronto Dominion Bank125,097$21.3M
ACK Asset Management LLC125,000$21.3M
Marshall Wace, LLP79,456$13.5M
Temasek Holdings (Private) Ltd70,988$12.1M
Renaissance Technologies LLC66,323$11.3M
Tudor Investment Corp Et Al64,366$11.0M
HRT Financial LP56,254$9.59M
Covalis Capital LLP55,517$9.46M
Panagora Asset Management Inc55,166$9.40M
Point72 Europe (London) LLP54,417$9.27M
SG Capital Management LLC50,012$8.52M
Bridge City Capital, LLC49,357$8.41M
Appian Way Asset Management LP32,147$5.48M
Bridgewater Associates, LP30,680$5.23M
AXA S.A.26,038$4.44M
XTX Topco Ltd24,460$4.17M
Decade Renewable Partners LP22,723$3.87M
Fieldview Capital Management, LLC18,485$3.15M
Boston Partners17,587$3.00M
Sagefield Capital LP12,073$2.06M
Graham Capital Management, L.P.11,394$1.94M
Campbell & CO Investment Adviser LLC11,327$1.93M
Lecap Asset Management Ltd11,314$1.93M
FORA Capital, LLC10,074$1.72M
Centiva Capital, LP9,785$1.67M
Virtu Financial LLC7,910$1.35M
Arista Wealth Management, LLC7,389$1.26M
Ausbil Investment Management Ltd6,496$1.11M
Bayesian Capital Management, LP5,845$996.2K
Holocene Advisors, LP5,592$953.0K
Point72 (DIFC) Ltd5,573$949.8K
Quadrature Capital Ltd5,073$864.5K
Gsa Capital Partners LLP5,071$864.0K
Twinbeech Capital LP5,068$863.7K
Sciencast Management LP5,053$861.2K
Vinva Investment Management Ltd2,884$759.9K
Counterpoint Mutual Funds LLC4,410$751.6K
Capstone Investment Advisors, LLC4,389$748.0K
Quantitative Investment Management, LLC4,241$722.0K
World Equity Group, Inc.4,142$705.9K
MONECO Advisors, LLC3,479$592.9K
Fox Run Management, L.L.C.3,020$514.7K
Hartree Partners, LP3,000$511.3K
Aster Capital Management (DIFC) Ltd2,876$490.2K
QRG Capital Management, Inc.2,593$441.9K
Maven Securities LTD2,280$388.6K
Scientech Research LLC2,058$350.7K
Readystate Asset Management LP2,038$347.3K
Headlands Technologies LLC1,694$288.7K
Farringdon Capital, Ltd.1,600$272.7K
Picton Mahoney Asset Management1,550$265.0K
Sentinus, LLC1,530$260.8K
Keebeck Alpha, LP1,518$258.7K
Aptus Capital Advisors, LLC1,340$228.4K
Sigma Planning Corp1,333$227.2K
Wedbush Securities Inc1,197$204.0K
Mirae Asset Global Investments Co., Ltd.648$110.4K
BNP PARIBAS ASSET MANAGEMENT Holding S.A.632$108.0K
Employees Retirement System of Texas434$74.0K
South State Corp.119$20.3K
REAP Financial Group, LLC100$17.0K
Fuller & Thaler Asset Management, Inc.84$14.3K
Bogart Wealth, LLC84$14.3K
Archer Investment Corp60$10.2K
Twin Peaks Wealth Advisors, LLC25$4.61K
Sawyer & Company, Inc5$2.08K
Caitong International Asset Management Co., Ltd8$1.36K
Bokf, NA6$1.02K
Eq Wealth Advisors, LLC6$1.02K
Garde Capital, Inc.5$853
Whipplewood Advisors, LLC4$682
Stephens Consulting, LLC2$341

Not filed for Q3 2025 yet (7)

Institutions that held Mastec Inc at the end of Q2 2025 and haven't filed a 13F for Q3 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MTZ in Q2 2025 that haven't filed for Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
Norges Bank73,355$12.5M
IronOak Wealth LLC.9,239$1.57M
Avantax Advisory Services, Inc.3,678$626.8K
Atria Wealth Solutions, Inc.2,731$467.2K
EP Wealth Advisors, LLC1,180$201.1K
First Horizon Advisors, Inc.54$9.20K
Parkworth Wealth Management, Inc.5$852