Mastec Inc (MTZ) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

78,648,000Shares Outstanding

59,828,936Shares held by institutions

$25,935,245,467Value of institutional holdings

76.07%Institutional ownership %

5.68%Shares Changed QoQ

678No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Mastec Inc (NYSE:MTZ) is held by 676 institutional investors per 13F filings through December 2025.

These investors collectively held 75.3% of Mastec's outstanding shares in December 2025, up from 74.2% in September 2025.
Their total shares held in MTZ increased 5.54% from the prior quarter, while the number of investors in Mastec increased 29.75% year over year.
Activity in MTZ broke down as 349 buyers, 225 sellers, and 102 unchanged among 676 total holders.
Institutional investors collectively held 59.19Mn shares in Mastec as of December 2025, up by 3.11Mn shares quarter on quarter, and down 78.12K shares year over year.
OP Asset Management Ltd holds the largest position in MTZ at 366.66K shares as of December 31, 2025, or 0.47% of shares outstanding.
The largest buyers of Mastec for the quarter ending December 2025 were OP Asset Management Ltd (181.74K), SG Americas Securities, LLC (109.04K), Assenagon Asset Management S.A. (90.68K), STRS OHIO (46.1K), WEALTH ENHANCEMENT ADVISORY SERVICES, LLC (40.13K).
The largest sales of MTZ for the quarter ending December 2025 came from COUNTRY TRUST BANK (60.47K), Hennessy Advisors Inc (21.5K), COMMUNITY TRUST & INVESTMENT CO (14.12K), Sterling Capital Management LLC (10.6K), WEDGE CAPITAL MANAGEMENT L L P/NC (7.59K).
According to Business Quant data, leading holders of MTZ for December 2025 are OP Asset Management Ltd (366.66K), Assenagon Asset Management S.A. (255.22K), Hennessy Advisors Inc (205.1K), KIRR MARBACH & CO LLC /IN/ (160.2K), HILLMAN CO (144.69K), SG Americas Securities, LLC (138.81K), COUNTRY TRUST BANK (131.65K), COMMUNITY TRUST & INVESTMENT CO (109.91K), Retirement Systems of Alabama (75.2K), Raiffeisen Bank International AG (66.0K).

682 Institutional Holders

59,828,936 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	7,111,254	-632,111	-8.16%	$1,545,773,337.00
VANGUARD GROUP INC	31 Dec, 2025	5,932,754	-74,438	-1.24%	$1,289,602,736.00
VICTORY CAPITAL MANAGEMENT INC	31 Dec, 2025	2,637,451	1,690,896	178.64%	$573,304,252.00
Hill City Capital, LP	31 Dec, 2025	2,155,000	0	0.00%	$468,432,350.00
State Street Corp	31 Dec, 2025	1,826,422	-10,729	-0.58%	$397,009,350.00
Electron Capital Partners, LLC	31 Dec, 2025	1,608,606	789,515	96.39%	$349,662,686.00
PECONIC PARTNERS LLC	31 Dec, 2025	1,600,000	850,000	113.33%	$347,792,000.00
Invesco Ltd.	31 Dec, 2025	1,520,030	-144,371	-8.67%	$330,408,916.00
Hood River Capital Management LLC	31 Dec, 2025	1,483,661	-162,764	-9.89%	$322,503,392.00
FIRST TRUST ADVISORS LP	31 Dec, 2025	1,311,433	289,258	28.30%	$285,066,296.00
Bank Of America Corp /De/	31 Dec, 2025	1,254,966	-437,288	-25.84%	$272,791,959.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	1,220,703	94,344	8.38%	$265,395,039.00
NORDEA INVESTMENT MANAGEMENT AB	31 Dec, 2025	1,150,269	-191,754	-14.29%	$252,127,462.00
Third Point LLC	31 Dec, 2025	925,000	200,000	27.59%	$201,067,250.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	870,846	-64,158	-6.86%	$189,308,527.00
MILLENNIUM MANAGEMENT LLC	31 Dec, 2025	732,273	-101,129	-12.13%	$159,174,182.00
AQR CAPITAL MANAGEMENT LLC	31 Dec, 2025	730,979	-169,505	-18.82%	$158,892,797.00
Point72 Asset Management, L.P.	31 Dec, 2025	720,771	62,570	9.51%	$156,673,992.00
Goldman Sachs Group Inc	31 Dec, 2025	701,308	377,032	116.27%	$152,443,320.00
COATUE MANAGEMENT LLC	31 Dec, 2025	677,909	677,909	0.00%	$147,357,080.00

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