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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.

13F holders, Q3 2025

Institutional positions in Mastec Inc as of Sep 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
652
+65 vs. Q2 2025
Shares held
57.3M
+1.49M (+2.7%) vs. Q2 2025
Total value
$12.2B
+$2.69B (+28.4%) vs. Q2 2025
New holders
138
203 more added
Sold out
73
224 more reduced

7 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2025: 652 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: 368 institutionsQ1 2024: 382 institutionsQ2 2024: 430 institutionsQ3 2024: 470 institutionsQ4 2024: 532 institutionsQ1 2025: 523 institutionsQ2 2025: 594 institutionsQ3 2025: 652 institutionsQ4 2025: 695 institutionsQ1 2026: 811 institutionsQ2 2026: 911 institutions
Value heldQ3 2025: $12.2B
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 2026911$24.7B
Q1 2026811$18.6B
Q4 2025695$12.8B
Q3 2025652$12.2B
Q2 2025594$9.50B
Q1 2025523$6.56B
Q4 2024532$7.83B
Q3 2024470$7.09B
Q2 2024430$6.35B
Q1 2024382$5.51B
Q4 2023368$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, Q3 2025

Shares, value and share of portfolio for each institution holding Mastec Inc; share changes are against Q2 2025.

Institutions holding MTZ in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Colonial Trust Co42$8.94K0.00%00.0%Unchanged
JFS Wealth Advisors, LLC41$8.73K0.00%+3+7.9%Added
Armstrong Advisory Group, Inc40$8.51K0.00%00.0%Unchanged
Eastern Bank38$8.09K0.00%00.0%Unchanged
Strategic Wealth Partners, Ltd.37$7.87K0.00%00.0%Unchanged
Rakuten Securities, Inc.34$7.24K0.00%−54−61.4%Reduced
Central Trust Co34$7.24K0.00%00.0%Unchanged
Fortitude Family Office, LLC34$7.24K0.00%+11+47.8%Added
SBI Securities Co., Ltd.33$7.02K0.00%+1+3.1%Added
Trust Co of Toledo NA32$6.81K0.00%00.0%Unchanged
Private Wealth Management Group, LLC32$6.81K0.00%00.0%Unchanged
ORG Partners LLC32$6.81K0.00%+32New
Boreal Capital Management LLC31$6.60K0.01%00.0%Unchanged
Byrne Asset Management LLC30$6.38K0.00%00.0%Unchanged
Assetmark, Inc29$6.17K0.00%+10+52.6%Added
Atlantic Trust, LLC28$5.96K0.00%00.0%Unchanged
Private Trust Co NA25$5.32K0.00%00.0%Unchanged
Creekmur Asset Management LLC25$5.32K0.00%00.0%Unchanged
Toth Financial Advisory Corp24$5.11K0.00%00.0%Unchanged
WPG Advisers, LLC22$4.68K0.00%−29−56.9%Reduced
Halbert Hargrove Global Advisors, LLC22$4.68K0.00%+22New
Sachetta, LLC19$4.04K0.00%00.0%Unchanged
NBC Securities, Inc.18$3.83K0.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.19$3.45K0.00%+2+11.8%Added
Raffa Wealth Management, LLC15$3.19K0.00%00.0%Unchanged
Evolution Advisers, Inc.15$3.00K0.00%+6+66.7%Added
Financial Management Professionals, Inc.13$2.77K0.00%00.0%Unchanged
Highline Wealth Partners LLC13$2.77K0.00%00.0%Unchanged
MAI Capital Management12$2.55K0.00%−15−55.6%Reduced
Larson Financial Group LLC11$2.34K0.00%+7+175.0%Added
Transamerica Financial Advisors, Inc.11$2.34K0.00%+11New
Anchor Investment Management, LLC10$2.13K0.00%00.0%Unchanged
Heartwood Wealth Advisors LLC10$2.13K0.00%+10New
Cloud Capital Management, LLC12$2.00K0.00%+12New
SJS Investment Consulting Inc.9$1.92K0.00%+1+12.5%Added
ZRC Wealth Management, LLC8$1.70K0.00%+8New
Bare Financial Services, Inc7$1.49K0.00%00.0%Unchanged
Marquette Asset Management, LLC7$1.49K0.00%+7New
Bay Harbor Wealth Management, LLC7$1.49K0.00%+3+75.0%Added
Cornerstone Planning Group LLC6$1.28K0.00%00.0%Unchanged
Cromwell Holdings LLC6$1.28K0.00%00.0%Unchanged
CoreCap Advisors, LLC6$1.28K0.00%00.0%Unchanged
HFM Investment Advisors, LLC6$1.28K0.00%00.0%Unchanged
Rialto Wealth Management, LLC6$1.28K0.00%+1+20.0%Added
CVA Family Office, LLC5$1.06K0.00%00.0%Unchanged
Bruce G. Allen Investments, LLC3$6380.00%00.0%Unchanged
Turning Point Benefit Group, Inc.2$4300.00%+2New
Tortoise Investment Management, LLC2$4260.00%+1+100.0%Added
New Millennium Group LLC2$4260.00%+2New
TFC Financial Management1$2130.00%00.0%Unchanged
Creative Financial Designs Inc1$2130.00%00.0%Unchanged
Wealth Watch Advisors, INC1$2130.00%+1New
Cartenna Capital, LP0$00.00%−300,000−100.0%Sold out
Toronto Dominion Bank0$00.00%−125,097−100.0%Sold out
ACK Asset Management LLC0$00.00%−125,000−100.0%Sold out
Marshall Wace, LLP0$00.00%−79,456−100.0%Sold out
Temasek Holdings (Private) Ltd0$00.00%−70,988−100.0%Sold out
Renaissance Technologies LLC0$00.00%−66,323−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−64,366−100.0%Sold out
HRT Financial LP0$00.00%−56,254−100.0%Sold out
Covalis Capital LLP0$00.00%−55,517−100.0%Sold out
Panagora Asset Management Inc0$00.00%−55,166−100.0%Sold out
Point72 Europe (London) LLP0$00.00%−54,417−100.0%Sold out
SG Capital Management LLC0$00.00%−50,012−100.0%Sold out
Bridge City Capital, LLC0$00.00%−49,357−100.0%Sold out
Appian Way Asset Management LP0$00.00%−32,147−100.0%Sold out
Bridgewater Associates, LP0$00.00%−30,680−100.0%Sold out
AXA S.A.0$00.00%−26,038−100.0%Sold out
XTX Topco Ltd0$00.00%−24,460−100.0%Sold out
Decade Renewable Partners LP0$00.00%−22,723−100.0%Sold out
Fieldview Capital Management, LLC0$00.00%−18,485−100.0%Sold out
Boston Partners0$00.00%−17,587−100.0%Sold out
Sagefield Capital LP0$00.00%−12,073−100.0%Sold out
Graham Capital Management, L.P.0$00.00%−11,394−100.0%Sold out
Campbell & CO Investment Adviser LLC0$00.00%−11,327−100.0%Sold out
Lecap Asset Management Ltd0$00.00%−11,314−100.0%Sold out
FORA Capital, LLC0$00.00%−10,074−100.0%Sold out
Centiva Capital, LP0$00.00%−9,785−100.0%Sold out
Virtu Financial LLC0$00.00%−7,910−100.0%Sold out
Arista Wealth Management, LLC0$00.00%−7,389−100.0%Sold out
Ausbil Investment Management Ltd0$00.00%−6,496−100.0%Sold out
Bayesian Capital Management, LP0$00.00%−5,845−100.0%Sold out
Holocene Advisors, LP0$00.00%−5,592−100.0%Sold out
Point72 (DIFC) Ltd0$00.00%−5,573−100.0%Sold out
Quadrature Capital Ltd0$00.00%−5,073−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−5,071−100.0%Sold out
Twinbeech Capital LP0$00.00%−5,068−100.0%Sold out
Sciencast Management LP0$00.00%−5,053−100.0%Sold out
Vinva Investment Management Ltd0$00.00%−2,884−100.0%Sold out
Counterpoint Mutual Funds LLC0$00.00%−4,410−100.0%Sold out
Capstone Investment Advisors, LLC0$00.00%−4,389−100.0%Sold out
Quantitative Investment Management, LLC0$00.00%−4,241−100.0%Sold out
World Equity Group, Inc.0$00.00%−4,142−100.0%Sold out
MONECO Advisors, LLC0$00.00%−3,479−100.0%Sold out
Fox Run Management, L.L.C.0$00.00%−3,020−100.0%Sold out
Hartree Partners, LP0$00.00%−3,000−100.0%Sold out
Aster Capital Management (DIFC) Ltd0$00.00%−2,876−100.0%Sold out
QRG Capital Management, Inc.0$00.00%−2,593−100.0%Sold out
Maven Securities LTD0$00.00%−2,280−100.0%Sold out
Scientech Research LLC0$00.00%−2,058−100.0%Sold out