Matrix Service Co (MTRX) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

28,352,000Shares Outstanding

24,745,620Shares held by institutions

$315,259,199Value of institutional holdings

87.28%Institutional ownership %

6.42%Shares Changed QoQ

140No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Matrix Service Co (NASDAQ:MTRX) has 140 institutional investors with active 13F positions as of December 2025.

Collectively, these holders controlled 86.3% of Matrix Service's outstanding shares in December 2025, down from 87.0% in September 2025.
They increased total shares held in MTRX by 5.66% quarter over quarter, and investors in Matrix Service increased 13.82% from a year ago.
Among the 140 funds, 77 bought more Matrix Service shares, 48 sold down, and 15 held their ground.
The aggregate institutional position in Matrix Service amounted to 24.46Mn shares as of December 2025, up by 1.31Mn shares quarter on quarter, and up 1.42Mn shares year over year.
As of December 31, 2025, BlackRock, Inc. held the largest stake in Matrix Service with 3.69Mn shares, accounting for 13.0% of total shares outstanding.
The biggest buyers of Matrix Service for the quarter ending December 2025 included BlackRock, Inc. (382.27K), Goldman Sachs Group Inc (259.05K), ARROWSTREET CAPITAL, LIMITED PARTNERSHIP (228.29K), CenterBook Partners LP (226.32K), GSA CAPITAL PARTNERS LLP (175.79K).
The largest sales of MTRX for the quarter ending December 2025 came from ROYCE & ASSOCIATES LP (430.0K), Jpmorgan Chase & Co (353.12K), Bank Of America Corp /De/ (159.09K), MILLENNIUM MANAGEMENT LLC (143.73K), DIMENSIONAL FUND ADVISORS LP (141.98K).
Matrix Service's 10 largest shareholders as of December 2025 include BlackRock, Inc. (3.69Mn), VANGUARD GROUP INC (1.53Mn), NEEDHAM INVESTMENT MANAGEMENT LLC (1.43Mn), GENDELL JEFFREY L (1.06Mn), WESTERLY CAPITAL MANAGEMENT, LLC (988.0K), AMERICAN CENTURY COMPANIES INC (883.56K), Harvey Partners, LLC (852.68K), Azarias Capital Management, L.P. (730.77K), DIMENSIONAL FUND ADVISORS LP (668.74K), GEODE CAPITAL MANAGEMENT, LLC (667.97K) per Business Quant data.

140 Institutional Holders

24,745,620 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	3,686,785	382,274	11.57%	$43,135,385.00
VANGUARD GROUP INC	31 Dec, 2025	1,526,777	3,834	0.25%	$17,863,291.00
NEEDHAM INVESTMENT MANAGEMENT LLC	31 Dec, 2025	1,435,000	0	0.00%	$16,789,500.00
GENDELL JEFFREY L	31 Dec, 2025	1,057,561	111,087	11.74%	$12,373,464.00
WESTERLY CAPITAL MANAGEMENT, LLC	31 Dec, 2025	988,000	-112,000	-10.18%	$11,559,600.00
AMERICAN CENTURY COMPANIES INC	31 Dec, 2025	883,565	94,644	12.00%	$10,337,711.00
Harvey Partners, LLC	31 Dec, 2025	852,678	297	0.03%	$9,976,333.00
Azarias Capital Management, L.P.	31 Dec, 2025	730,767	95,924	15.11%	$8,549,974.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	668,738	-141,975	-17.51%	$7,824,453.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	667,970	23,358	3.62%	$7,816,887.00
First Eagle Investment Management, LLC	31 Dec, 2025	640,083	58,209	10.00%	$7,488,971.00
CenterBook Partners LP	31 Dec, 2025	634,046	226,325	55.51%	$7,418,338.00
FIRST WILSHIRE SECURITIES MANAGEMENT INC	31 Dec, 2025	613,017	-79,860	-11.53%	$7,172,299.00
Goldman Sachs Group Inc	31 Dec, 2025	574,732	259,052	82.06%	$6,724,366.00
State Street Corp	31 Dec, 2025	533,485	2,517	0.47%	$6,241,775.00
Bank of New York Mellon Corp	31 Dec, 2025	493,629	-35,230	-6.66%	$5,775,460.00
MILLENNIUM MANAGEMENT LLC	31 Dec, 2025	486,668	-143,728	-22.80%	$5,694,016.00
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	31 Dec, 2025	405,610	228,289	128.74%	$4,745,637.00
Russell Investments Group, Ltd.	31 Dec, 2025	391,890	64,157	19.58%	$4,585,109.00
Connor, Clark & Lunn Investment Management Ltd.	31 Dec, 2025	386,637	44,968	13.16%	$4,523,653.00

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