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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, Q2 2026

Institutional positions in Mastec Inc as of Jun 30, 2026. 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
911
+110 vs. Q1 2026
Shares held
59.4M
+1.49M (+2.6%) vs. Q1 2026
Total value
$24.7B
+$6.10B (+32.8%) vs. Q1 2026
New holders
185
326 more added
Sold out
75
295 more reduced

10 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 2026: 911 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 heldQ2 2026: $24.7B
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, Q2 2026

Shares, value and share of portfolio for each institution holding Mastec Inc; share changes are against Q1 2026.

Institutions holding MTZ in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
First Trust Advisors LP1,328,399$552.7M0.33%−83,185−5.9%Reduced
Bank of America Corp1,335,924$555.8M0.04%+5,858+0.4%Added
Lone Pine Capital LLCSuperinvestorLone Pine Capital1,345,157$559.7M3.42%−185,893−12.1%Reduced
JPMorgan Chase & Co1,318,161$566.8M0.03%+1,116,159+552.5%Added
Hill City Capital, LP2,155,000$896.6M20.94%00.0%Unchanged
State Street Corp2,244,771$934.0M0.03%+374,983+20.1%Added
Vanguard Portfolio Management LLC2,812,131$1.17B0.05%+42,093+1.5%Added
Vanguard Capital Management LLC2,831,849$1.18B0.03%+27,554+1.0%Added
Peconic Partners LLC3,678,431$1.53B20.35%+100,000+2.8%Added
BlackRock, Inc.7,638,487$3.18B0.05%+328,878+4.5%Added
ABS Investment Management LLC416––+416New
Citadel Advisors LLC0$00.00%−279,778−100.0%Sold out
Holocene Advisors, LP0$00.00%−101,724−100.0%Sold out
1832 Asset Management L.P.0$00.00%−61,000−100.0%Sold out
CloudAlpha Capital Management Limited/Hong Kong0$00.00%−57,400−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−55,985−100.0%Sold out
Muhlenkamp & Co Inc0$00.00%−42,832−100.0%Sold out
Jain Global LLC0$00.00%−37,729−100.0%Sold out
SummitTX Capital, L.P.0$00.00%−26,473−100.0%Sold out
Bokf, NA0$00.00%−20,001−100.0%Sold out
1060 Capital, LLC0$00.00%−19,700−100.0%Sold out
Mariner, LLC0$00.00%−18,544−100.0%Sold out
Farallon Capital Management, L.L.C.0$00.00%−17,000−100.0%Sold out
Lisanti Capital Growth, LLC0$00.00%−15,073−100.0%Sold out
Arosa Capital Management LP0$00.00%−15,000−100.0%Sold out
Arete Wealth Advisors, LLC0$00.00%−12,297−100.0%Sold out
Walleye Trading LLC0$00.00%−11,081−100.0%Sold out
Freemont Management S.A.0$00.00%−10,000−100.0%Sold out
Jacobs Levy Equity Management, Inc0$00.00%−8,961−100.0%Sold out
New York Life Investment Management LLC0$00.00%−8,238−100.0%Sold out
Virginia Retirement Systems Et Al0$00.00%−7,100−100.0%Sold out
Jackson Creek Investment Advisors LLC0$00.00%−6,911−100.0%Sold out
Rokos Capital Management LLP0$00.00%−6,813−100.0%Sold out
Aigen Investment Management, LP0$00.00%−6,201−100.0%Sold out
Ardsley Advisory Partners LP0$00.00%−5,000−100.0%Sold out
SIH Partners, LLLP0$00.00%−4,993−100.0%Sold out
Wright Investors Service Inc0$00.00%−3,648−100.0%Sold out
Fieldview Capital Management, LLC0$00.00%−2,256−100.0%Sold out
EP Wealth Advisors, LLC0$00.00%−1,943−100.0%Sold out
Parkwood LLC0$00.00%−1,844−100.0%Sold out
State of Wyoming0$00.00%−1,776−100.0%Sold out
Rhodes Investment Advisors Inc0$00.00%−1,715−100.0%Sold out
CTC Alternative Strategies, Ltd.0$00.00%−1,620−100.0%Sold out
SMART Wealth LLC0$00.00%−1,544−100.0%Sold out
Machina Capital S.A.S.0$00.00%−1,475−100.0%Sold out
ISAM Funds (UK) Ltd0$00.00%−1,337−100.0%Sold out
Penserra Capital Management LLC0$00.00%−1,254−100.0%Sold out
Verdence Capital Advisors LLC0$00.00%−1,223−100.0%Sold out
Renasant Bank0$00.00%−1,129−100.0%Sold out
Rathbone Brothers plc0$00.00%−1,015−100.0%Sold out
Capital Performance Advisors LLP0$00.00%−1,013−100.0%Sold out
Roman Butler Fullerton & Co0$00.00%−925−100.0%Sold out
Qsemble Capital Management, LP0$00.00%−987−100.0%Sold out
Brown Advisory Inc0$00.00%−983−100.0%Sold out
Advisory Alpha, LLC0$00.00%−977−100.0%Sold out
Quantessence Capital LLC0$00.00%−961−100.0%Sold out
White Pine Capital LLC0$00.00%−900−100.0%Sold out
Bayforest Capital Ltd0$00.00%−893−100.0%Sold out
Retirement Planning Group0$00.00%−880−100.0%Sold out
Marshall Wace, LLP0$00.00%−852−100.0%Sold out
Calamos Wealth Management LLC0$00.00%−850−100.0%Sold out
Fi3 FINANCIAL ADVISORS, LLC0$00.00%−808−100.0%Sold out
Hartree Partners, LP0$00.00%−800−100.0%Sold out
Evoke Wealth, LLC0$00.00%−685−100.0%Sold out
OmniStar Financial Group, Inc.0$00.00%−644−100.0%Sold out
Optiver Holding B.V.0$00.00%−553−100.0%Sold out
Thurston, Springer, Miller, Herd & Titak, Inc.0$00.00%−407−100.0%Sold out
Root Financial Partners, LLC0$00.00%−311−100.0%Sold out
Migdal Insurance & Financial Holdings Ltd.0$00.00%−296−100.0%Sold out
True Link Financial Advisors, LLC0$00.00%−288−100.0%Sold out
Wellington Grp LLC0$00.00%−259−100.0%Sold out
Princeton Global Asset Management LLC0$00.00%−200−100.0%Sold out
MAI Capital Management0$00.00%−136−100.0%Sold out
Wall Street Financial Group, Inc.0$00.00%−130−100.0%Sold out
RWM Asset Management, LLC0$00.00%−105−100.0%Sold out
Golden State Equity Partners0$00.00%−93−100.0%Sold out
IFG Advisory, LLC0$00.00%−48−100.0%Sold out
Twin Peaks Wealth Advisors, LLC0$00.00%−37−100.0%Sold out
Intentional Wealth Strategies, LLC0$00.00%−35−100.0%Sold out
Ancora Advisors, LLC0$00.00%−20−100.0%Sold out
Wolff Wiese Magana LLC0$00.00%−14−100.0%Sold out
MCF Advisors LLC0$00.00%−6−100.0%Sold out
Vermillion Wealth Management, Inc.0$00.00%−6−100.0%Sold out
Frazier Financial Advisors, LLC0$00.00%−2−100.0%Sold out
Curio Wealth, LLC0$00.00%−2−100.0%Sold out
TopTier Wealth Management, LLC0$00.00%−1−100.0%Sold out
CWM, LLC––––Not filed
Janus Henderson Group PLC––––Not filed
Richard Bernstein Advisors LLC––––Not filed
Arcadia Investment Management Corp––––Not filed
Skopos Labs, Inc.––––Not filed
Journey Strategic Wealth LLC––––Not filed
First Affirmative Financial Network––––Not filed
USA Financial Portformulas Corp––––Not filed
Evelyn Partners Asset Management Ltd––––Not filed
Sunbelt Securities, Inc.––––Not filed