Mastec Inc

MTZ

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

SEC filings (opens in a new tab)

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, Q1 2021

Institutional positions in Mastec Inc as of Mar 31, 2021. 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: 392; No complete 13F data for Q4 2020
Shares held: 59.7M; No complete 13F data for Q4 2020
Total value: $5.59B; No complete 13F data for Q4 2020

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 holdersQ1 2021: 392 institutions

Value heldQ1 2021: $5.59B

Institutions holding MTZ and their total value by quarter
Quarter	Holders	Value
Q2 2026	911	$24.7B
Q1 2026	811	$18.6B
Q4 2025	695	$12.8B
Q3 2025	652	$12.2B
Q2 2025	594	$9.50B
Q1 2025	523	$6.56B
Q4 2024	532	$7.83B
Q3 2024	470	$7.09B
Q2 2024	430	$6.35B
Q1 2024	382	$5.51B
Q4 2023	368	$4.66B
Q3 2023	382	$4.11B
Q2 2023	393	$6.85B
Q1 2023	394	$5.49B
Q4 2022	386	$4.97B
Q3 2022	338	$3.53B
Q2 2022	356	$3.91B
Q1 2022	388	$4.70B
Q4 2021	388	$4.77B
Q3 2021	366	$4.53B
Q2 2021	415	$5.77B
Q1 2021	392	$5.59B

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding Mastec Inc.

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding MTZ in Q1 2021
Institution	Shares	Value	% of portfolio	Change in shares	Action
Louisiana State Employees Retirement System	14,700	$1.38M	0.04%	–	–
Terra Nova Asset Management LLC	14,962	$1.40M	1.24%	–	–
Thrivent Financial for Lutherans	14,994	$1.41M	0.00%	–	–
Stifel Financial Corp	15,053	$1.41M	0.00%	–	–
Marshall Wace, LLP	15,089	$1.41M	0.01%	–	–
Federated Hermes, Inc.	15,555	$1.46M	0.00%	–	–
Raymond James Financial Services Advisors, Inc.	15,738	$1.48M	0.00%	–	–
Windsor Creek Advisors, LLC	16,031	$1.50M	0.58%	–	–
Peregrine Capital Management LLC	16,070	$1.51M	0.03%	–	–
Alberta Investment Management Corp	16,400	$1.54M	0.01%	–	–
Guggenheim Capital LLC	16,864	$1.58M	0.01%	–	–
Arizona State Retirement System	17,202	$1.61M	0.01%	–	–
Gables Capital Management Inc.	17,625	$1.65M	0.91%	–	–
Baird Financial Group, Inc.	18,361	$1.72M	0.00%	–	–
O'Shaughnessy Asset Management, LLC	18,488	$1.73M	0.04%	–	–
Oregon Public Employees Retirement Fund	18,610	$1.74M	0.02%	–	–
Commonwealth of Pennsylvania Public School Empls Retrmt Sys	18,815	$1.76M	0.02%	–	–
ProShare Advisors LLC	19,742	$1.85M	0.01%	–	–
Paradigm Financial Partners, LLC	19,800	$1.85M	0.50%	–	–
Two Sigma Advisers, LP	20,100	$1.88M	0.01%	–	–
Ameritas Investment Partners, Inc.	20,127	$1.89M	0.07%	–	–
SG Americas Securities, LLC	20,200	$1.89M	0.01%	–	–
Dana Investment Advisors, Inc.	20,333	$1.91M	0.09%	–	–
Leavell Investment Management, Inc.	20,895	$1.96M	0.16%	–	–
State of Michigan Retirement System	20,913	$1.96M	0.01%	–	–
State Board of Administration of Florida Retirement System	20,929	$1.96M	0.00%	–	–
Campbell Newman Asset Management Inc	21,297	$2.00M	0.21%	–	–
Gotham Asset Management, LLC	21,924	$2.05M	0.09%	–	–
Great West Life Assurance Co	22,021	$2.06M	0.01%	–	–
Jennison Associates LLC	22,286	$2.09M	0.00%	–	–
Itau Unibanco Holding S.A.	22,500	$2.11M	0.15%	–	–
Sheets Smith Wealth Management	22,599	$2.12M	0.31%	–	–
Vident Investment Advisory, LLC	22,713	$2.13M	0.07%	–	–
Alpine Woods Capital Investors, LLC	23,100	$2.16M	0.24%	–	–
Eudaimonia Partners, LLC	23,320	$2.19M	0.45%	–	–
AXA S.A.	23,400	$2.19M	0.01%	–	–
Congress Asset Management Co	23,448	$2.20M	0.02%	–	–
Tudor Investment Corp Et Al	23,480	$2.20M	0.05%	–	–
Malaga Cove Capital, LLC	23,837	$2.24M	0.96%	–	–
Illinois Municipal Retirement Fund	23,953	$2.24M	0.10%	–	–
HBK Sorce Advisory LLC	24,109	$2.26M	0.13%	–	–
Metropolitan Life Insurance Co	24,560	$2.30M	0.03%	–	–
Schroder Investment Management Group	25,147	$2.36M	0.00%	–	–
Spouting Rock Asset Management, LLC	25,529	$2.39M	0.74%	–	–
Brandywine Global Investment Management, LLC	26,244	$2.46M	0.02%	–	–
Credit Agricole S A	27,013	$2.53M	0.10%	–	–
Thames Capital Management LLC	27,071	$2.54M	0.59%	–	–
Alyeska Investment Group, L.P.	28,468	$2.67M	0.04%	–	–
Royce & Associates LP	28,612	$2.68M	0.02%	–	–
New York State Teachers Retirement System	29,005	$2.72M	0.01%	–	–
Snowden Capital Advisors LLC	29,290	$2.74M	0.16%	–	–
Menlo Advisors LLC	29,319	$2.75M	1.63%	–	–
EAM Investors, LLC	29,446	$2.76M	0.42%	–	–
State of Tennessee, Treasury Department	30,000	$2.81M	0.01%	–	–
PEAK6 Investments LLC	30,441	$2.85M	0.07%	–	–
Two Sigma Investments, LP	30,700	$2.88M	0.01%	–	–
Cambria Investment Management, L.P.	31,148	$2.92M	0.58%	–	–
Highland Capital Management, LLC	32,900	$3.08M	0.19%	–	–
Wexford Capital LP	32,991	$3.09M	0.46%	–	–
State of New Jersey Common Pension Fund D	33,864	$3.17M	0.01%	–	–
West Coast Financial LLC	34,159	$3.20M	0.56%	–	–
Comerica Bank	31,946	$3.25M	0.02%	–	–
Livforsakringsbolaget Skandia, Omsesidigt	35,800	$3.35M	0.23%	–	–
Employees Retirement System of Texas	36,000	$3.37M	0.04%	–	–
AQR Capital Management LLC	38,484	$3.49M	0.01%	–	–
Advisors Asset Management, Inc.	37,470	$3.51M	0.05%	–	–
Coe Capital Management, LLC	39,096	$3.66M	3.68%	–	–
First Republic Investment Management, Inc.	39,911	$3.74M	0.01%	–	–
United Capital Financial Advisers, LLC	39,990	$3.75M	0.02%	–	–
Asset Management One Co.,Ltd.	41,657	$3.90M	0.02%	–	–
Texas Permanent School Fund	42,135	$3.95M	0.05%	–	–
US Bancorp	44,493	$4.17M	0.01%	–	–
Winmill & Co. Inc	45,500	$4.26M	1.57%	–	–
Ensign Peak Advisors, Inc	45,500	$4.26M	0.01%	–	–
Bridge City Capital, LLC	45,549	$4.27M	1.41%	–	–
Man Group plc	45,616	$4.27M	0.02%	–	–
Hancock Whitney Corp	46,972	$4.40M	0.15%	–	–
B. Metzler seel. Sohn & Co. Holding AG	47,152	$4.42M	0.07%	–	–
IMA Wealth, Inc.	47,221	$4.42M	1.08%	–	–
Victory Capital Management Inc	47,954	$4.49M	0.00%	–	–
Daiwa Securities Group Inc.	48,600	$4.55M	0.03%	–	–
Price T Rowe Associates Inc	48,827	$4.58M	0.00%	–	–
Citigroup Inc	49,250	$4.62M	0.00%	–	–
Leuthold Group, LLC	49,533	$4.64M	0.59%	–	–
MetLife Investment Management	49,687	$4.66M	0.04%	–	–
Mutual of America Capital Management LLC	50,707	$4.75M	0.05%	–	–
Rockefeller Capital Management L.P.	52,254	$4.89M	0.03%	–	–
Icon Advisers Inc	53,395	$5.00M	0.78%	–	–
Sirios Capital Management L P	56,117	$5.26M	0.44%	–	–
BNP Paribas Arbitrage, SA	57,232	$5.36M	0.01%	–	–
Profit Investment Management, LLC	58,791	$5.51M	3.14%	–	–
Los Angeles Capital Management LLC	58,821	$5.51M	0.02%	–	–
SEI Investments Co	61,870	$5.54M	0.01%	–	–
Moore Capital Management, LP	59,543	$5.58M	0.11%	–	–
Voya Investment Management LLC	61,115	$5.73M	0.01%	–	–
Impax Asset Management Group plc	61,609	$5.77M	0.03%	–	–
Royal Bank of Canada	64,029	$6.00M	0.00%	–	–
Weiss Multi-Strategy Advisers LLC	64,394	$6.03M	0.14%	–	–
South Dakota Investment Council	65,636	$6.15M	0.10%	–	–
Ancora Advisors, LLC	66,660	$6.25M	0.17%	–	–