Matrix Service MTRX Institutional Ownership

NASDAQ MTRX

$11.07 -0.11 (-0.98%)

At close: Aug 21, 2026 · 4:00 PM EDT

Institutions by Trading Activity

141 Institutions

Increased 81 57.4%

Unchanged 14 9.9%

Reduced 46 32.6%

Ownership Statistics

13F · as of 31 Mar, 2026

Institutional Ownership

88.44%

▲+1.16 pp QoQ

Shares Held by Institutions

25.10Mn

of 28.38Mn outstanding

▲+12.34% QoQ

Shares Outstanding

28.38Mn

3.28Mn held outside 13F filers

Institutional Investors

141

filed 13F for Mar 2026

▲+1 vs prior quarter

Net Shares Added (QoQ)

+2.76Mn

accumulated since last quarter

Value of Holdings

$292.39Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 31 Mar, 2026

Matrix Service Co (NASDAQ:MTRX) has 141 institutional investors that have filed 13F reports for the period ending March 2026.

Collectively, these holders controlled 88.4% of Matrix Service's outstanding shares in March 2026, up from 87.3% in December 2025.
They increased total shares held in MTRX by 12.34% quarter over quarter, and investors in Matrix Service increased 14.63% from a year ago.
Among the 141 funds, 81 bought more Matrix Service shares, 46 sold down, and 14 held their ground.
Altogether, these fund groups held 25.1Mn shares in MTRX by March 2026, up by 2.76Mn shares quarter on quarter, and up 874.89K shares year over year.
BlackRock, Inc. is the top holder of Matrix Service as of March 31, 2026, with 2.01Mn shares representing 7.1% of outstanding stock.
The largest buyers of Matrix Service for the quarter ending March 2026 were VANGUARD CAPITAL MANAGEMENT LLC (1.2Mn), First Eagle Investment Management, LLC (1.06Mn), TWO SIGMA INVESTMENTS, LP (436.98K), MARSHALL WACE, LLP (281.82K), CITADEL ADVISORS LLC (243.64K).
The biggest sellers of Matrix Service for the quarter ending March 2026 included BlackRock, Inc. (1.67Mn), Goldman Sachs Group Inc (302.34K), ARROWSTREET CAPITAL, LIMITED PARTNERSHIP (261.79K), CenterBook Partners LP (202.62K), Point72 Asset Management, L.P. (93.53K).
Per Business Quant, the top 10 investors in MTRX for the quarter ending March 2026 include BlackRock, Inc. (2.01Mn), First Eagle Investment Management, LLC (1.7Mn), NEEDHAM INVESTMENT MANAGEMENT LLC (1.43Mn), GENDELL JEFFREY L (1.23Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.2Mn), AMERICAN CENTURY COMPANIES INC (981.64K), WESTERLY CAPITAL MANAGEMENT, LLC (965.0K), Harvey Partners, LLC (905.0K), Azarias Capital Management, L.P. (817.02K), GEODE CAPITAL MANAGEMENT, LLC (685.37K).

Form 13F Holdings

141 Institutional Holders

Report period 31 Mar, 2026

Total shares held 25.10Mn

Of outstanding 88.44%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	2,014,217	7.10%	▼1,672,568	-45.37%	$23.12Mn
2	First Eagle Investment Management, LLC	0001325447	1,701,618	6.00%	▲1,061,535	+165.84%	$19.53Mn
3	NEEDHAM INVESTMENT MANAGEMENT LLC	0001167212	1,435,000	5.06%	0	0.00%	$16.47Mn
4	GENDELL JEFFREY L	0001056581	1,231,307	4.34%	▲173,746	+16.43%	$14.14Mn
5	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,196,787	4.22%	▲1,196,787	0.00%	$13.74Mn
6	AMERICAN CENTURY COMPANIES INC	0000748054	981,639	3.46%	▲98,074	+11.10%	$11.27Mn
7	WESTERLY CAPITAL MANAGEMENT, LLC	0001546172	965,000	3.40%	▼23,000	-2.33%	$11.08Mn
8	Harvey Partners, LLC	0001406484	905,000	3.19%	▲52,322	+6.14%	$10.39Mn
9	Azarias Capital Management, L.P.	0001625279	817,021	2.88%	▲86,254	+11.80%	$9.38Mn
10	GEODE CAPITAL MANAGEMENT, LLC	0001214717	685,373	2.41%	▲17,403	+2.61%	$7.87Mn
11	DIMENSIONAL FUND ADVISORS LP	0000354204	663,939	2.34%	▼4,799	-0.72%	$7.62Mn
12	TWO SIGMA INVESTMENTS, LP	0001179392	637,691	2.25%	▲436,981	+217.72%	$7.32Mn
13	State Street Corp	0000093751	545,485	1.92%	▲12,000	+2.25%	$6.26Mn
14	FIRST WILSHIRE SECURITIES MANAGEMENT INC	0000732847	522,838	1.84%	▼90,179	-14.71%	$6.00Mn
15	AQR CAPITAL MANAGEMENT LLC	0001167557	498,941	1.76%	▲133,703	+36.61%	$5.73Mn
16	MILLENNIUM MANAGEMENT LLC	0001273087	476,411	1.68%	▼10,257	-2.11%	$5.47Mn
17	ACADIAN ASSET MANAGEMENT LLC	0000916542	476,089	1.68%	▲178,300	+59.87%	$5.46K
18	CITADEL ADVISORS LLC	0001423053	472,047	1.66%	▲243,638	+106.67%	$5.42Mn
19	Bank of New York Mellon Corp	0001390777	466,897	1.65%	▼26,732	-5.42%	$5.36Mn
20	CenterBook Partners LP	0001872738	431,425	1.52%	▼202,621	-31.96%	$4.95Mn

Showing 1 to 20 of 141 holders