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
Los Angeles Capital Management LLC	58,821	$5.51M	0.02%	–	–
Profit Investment Management, LLC	58,791	$5.51M	3.14%	–	–
BNP Paribas Arbitrage, SA	57,232	$5.36M	0.01%	–	–
Sirios Capital Management L P	56,117	$5.26M	0.44%	–	–
Icon Advisers Inc	53,395	$5.00M	0.78%	–	–
Rockefeller Capital Management L.P.	52,254	$4.89M	0.03%	–	–
Mutual of America Capital Management LLC	50,707	$4.75M	0.05%	–	–
MetLife Investment Management	49,687	$4.66M	0.04%	–	–
Leuthold Group, LLC	49,533	$4.64M	0.59%	–	–
Citigroup Inc	49,250	$4.62M	0.00%	–	–
Price T Rowe Associates Inc	48,827	$4.58M	0.00%	–	–
Daiwa Securities Group Inc.	48,600	$4.55M	0.03%	–	–
Victory Capital Management Inc	47,954	$4.49M	0.00%	–	–
IMA Wealth, Inc.	47,221	$4.42M	1.08%	–	–
B. Metzler seel. Sohn & Co. Holding AG	47,152	$4.42M	0.07%	–	–
Hancock Whitney Corp	46,972	$4.40M	0.15%	–	–
Man Group plc	45,616	$4.27M	0.02%	–	–
Bridge City Capital, LLC	45,549	$4.27M	1.41%	–	–
Winmill & Co. Inc	45,500	$4.26M	1.57%	–	–
Ensign Peak Advisors, Inc	45,500	$4.26M	0.01%	–	–
US Bancorp	44,493	$4.17M	0.01%	–	–
Texas Permanent School Fund	42,135	$3.95M	0.05%	–	–
Asset Management One Co.,Ltd.	41,657	$3.90M	0.02%	–	–
United Capital Financial Advisers, LLC	39,990	$3.75M	0.02%	–	–
First Republic Investment Management, Inc.	39,911	$3.74M	0.01%	–	–
Coe Capital Management, LLC	39,096	$3.66M	3.68%	–	–
Advisors Asset Management, Inc.	37,470	$3.51M	0.05%	–	–
AQR Capital Management LLC	38,484	$3.49M	0.01%	–	–
Employees Retirement System of Texas	36,000	$3.37M	0.04%	–	–
Livforsakringsbolaget Skandia, Omsesidigt	35,800	$3.35M	0.23%	–	–
Comerica Bank	31,946	$3.25M	0.02%	–	–
West Coast Financial LLC	34,159	$3.20M	0.56%	–	–
State of New Jersey Common Pension Fund D	33,864	$3.17M	0.01%	–	–
Wexford Capital LP	32,991	$3.09M	0.46%	–	–
Highland Capital Management, LLC	32,900	$3.08M	0.19%	–	–
Cambria Investment Management, L.P.	31,148	$2.92M	0.58%	–	–
Two Sigma Investments, LP	30,700	$2.88M	0.01%	–	–
PEAK6 Investments LLC	30,441	$2.85M	0.07%	–	–
State of Tennessee, Treasury Department	30,000	$2.81M	0.01%	–	–
EAM Investors, LLC	29,446	$2.76M	0.42%	–	–
Menlo Advisors LLC	29,319	$2.75M	1.63%	–	–
Snowden Capital Advisors LLC	29,290	$2.74M	0.16%	–	–
New York State Teachers Retirement System	29,005	$2.72M	0.01%	–	–
Royce & Associates LP	28,612	$2.68M	0.02%	–	–
Alyeska Investment Group, L.P.	28,468	$2.67M	0.04%	–	–
Thames Capital Management LLC	27,071	$2.54M	0.59%	–	–
Credit Agricole S A	27,013	$2.53M	0.10%	–	–
Brandywine Global Investment Management, LLC	26,244	$2.46M	0.02%	–	–
Spouting Rock Asset Management, LLC	25,529	$2.39M	0.74%	–	–
Schroder Investment Management Group	25,147	$2.36M	0.00%	–	–
Metropolitan Life Insurance Co	24,560	$2.30M	0.03%	–	–
HBK Sorce Advisory LLC	24,109	$2.26M	0.13%	–	–
Illinois Municipal Retirement Fund	23,953	$2.24M	0.10%	–	–
Malaga Cove Capital, LLC	23,837	$2.24M	0.96%	–	–
Tudor Investment Corp Et Al	23,480	$2.20M	0.05%	–	–
Congress Asset Management Co	23,448	$2.20M	0.02%	–	–
AXA S.A.	23,400	$2.19M	0.01%	–	–
Eudaimonia Partners, LLC	23,320	$2.19M	0.45%	–	–
Alpine Woods Capital Investors, LLC	23,100	$2.16M	0.24%	–	–
Vident Investment Advisory, LLC	22,713	$2.13M	0.07%	–	–
Sheets Smith Wealth Management	22,599	$2.12M	0.31%	–	–
Itau Unibanco Holding S.A.	22,500	$2.11M	0.15%	–	–
Jennison Associates LLC	22,286	$2.09M	0.00%	–	–
Great West Life Assurance Co	22,021	$2.06M	0.01%	–	–
Gotham Asset Management, LLC	21,924	$2.05M	0.09%	–	–
Campbell Newman Asset Management Inc	21,297	$2.00M	0.21%	–	–
State Board of Administration of Florida Retirement System	20,929	$1.96M	0.00%	–	–
State of Michigan Retirement System	20,913	$1.96M	0.01%	–	–
Leavell Investment Management, Inc.	20,895	$1.96M	0.16%	–	–
Dana Investment Advisors, Inc.	20,333	$1.91M	0.09%	–	–
SG Americas Securities, LLC	20,200	$1.89M	0.01%	–	–
Ameritas Investment Partners, Inc.	20,127	$1.89M	0.07%	–	–
Two Sigma Advisers, LP	20,100	$1.88M	0.01%	–	–
Paradigm Financial Partners, LLC	19,800	$1.85M	0.50%	–	–
ProShare Advisors LLC	19,742	$1.85M	0.01%	–	–
Commonwealth of Pennsylvania Public School Empls Retrmt Sys	18,815	$1.76M	0.02%	–	–
Oregon Public Employees Retirement Fund	18,610	$1.74M	0.02%	–	–
O'Shaughnessy Asset Management, LLC	18,488	$1.73M	0.04%	–	–
Baird Financial Group, Inc.	18,361	$1.72M	0.00%	–	–
Gables Capital Management Inc.	17,625	$1.65M	0.91%	–	–
Arizona State Retirement System	17,202	$1.61M	0.01%	–	–
Guggenheim Capital LLC	16,864	$1.58M	0.01%	–	–
Alberta Investment Management Corp	16,400	$1.54M	0.01%	–	–
Peregrine Capital Management LLC	16,070	$1.51M	0.03%	–	–
Windsor Creek Advisors, LLC	16,031	$1.50M	0.58%	–	–
Raymond James Financial Services Advisors, Inc.	15,738	$1.48M	0.00%	–	–
Federated Hermes, Inc.	15,555	$1.46M	0.00%	–	–
Marshall Wace, LLP	15,089	$1.41M	0.01%	–	–
Stifel Financial Corp	15,053	$1.41M	0.00%	–	–
Thrivent Financial for Lutherans	14,994	$1.41M	0.00%	–	–
Terra Nova Asset Management LLC	14,962	$1.40M	1.24%	–	–
Dynamic Technology Lab Private Ltd	14,699	$1.38M	0.16%	–	–
Louisiana State Employees Retirement System	14,700	$1.38M	0.04%	–	–
Prudential Financial Inc	14,638	$1.37M	0.00%	–	–
Aurora Investment Counsel	14,467	$1.36M	1.00%	–	–
Bangor Savings Bank	14,428	$1.35M	0.16%	–	–
Winton Group Ltd	14,163	$1.33M	0.08%	–	–
Marietta Investment Partners LLC	14,084	$1.32M	0.33%	–	–
Blueshift Asset Management, LLC	13,940	$1.31M	0.13%	–	–
AMP Capital Investors Ltd	13,748	$1.29M	0.01%	–	–