Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

MATRIX SERVICE CO

CIK 0000866273MTRX· quarter ending 2026-06-30

Shares outstanding

28,291,921

as of 2026-09-02 · 10-K cover page, filed 2026-09-03

Held by 13F filers

25,941,507

91.7% of shares outstanding

Holders

150

+6 vs 2026-03-31 · 22 new, 16 exited

Value

$355.0M

shares +6.9% vs prior quarter

Share classes (cover page of the 10-K filed 2026-09-03, as of 2026-09-02)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	MTRX · NASDAQ	28,291,921	25,941,507	91.7%	150	576853105

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

Count	CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
	576853105	COM	150	25,941,507	28,291,921	91.7%	$355.0M	2 call / 0 put	13DG	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings.

Top holders (150 of 150 · 576853105)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	BlackRock, Inc.	2,139,456	7.56%	$29.3M	+125,239 (+6.2%)
2	First Eagle Investment Management, LLC	1,980,434	7.00%	$27.1M	+1,129,625 (+132.8%)
3	NEEDHAM INVESTMENT MANAGEMENT LLC	1,435,000	5.07%	$19.7M	—
4	AMERICAN CENTURY COMPANIES INC	1,206,822	4.27%	$16.5M	+225,183 (+22.9%)
5	GENDELL JEFFREY L	1,192,529	4.22%	$16.3M	-38,778 (-3.1%)
6	VANGUARD CAPITAL MANAGEMENT LLC	1,188,393	4.20%	$16.3M	-8,394 (-0.7%)
7	ACADIAN ASSET MANAGEMENT LLC	871,501	3.08%	$11.9M	+395,412 (+83.1%)
8	Harvey Partners, LLC	815,023	2.88%	$11.2M	-89,977 (-9.9%)
9	TWO SIGMA INVESTMENTS, LP	748,118	2.64%	$10.2M	+110,427 (+17.3%)
10	GEODE CAPITAL MANAGEMENT, LLC	721,322	2.55%	$9.9M	+35,949 (+5.2%)
11	Azarias Capital Management, L.P.	673,692	2.38%	$9.2M	-143,329 (-17.5%)
12	DIMENSIONAL FUND ADVISORS LP	665,266	2.35%	$9.1M	+1,327 (+0.2%)
13	WESTERLY CAPITAL MANAGEMENT, LLC	595,930	2.11%	$8.2M	-369,070 (-38.2%)
14	AQR CAPITAL MANAGEMENT LLC	594,197	2.10%	$8.1M	+95,256 (+19.1%)
15	STATE STREET CORP	581,006	2.05%	$8.0M	+35,521 (+6.5%)
16	FIRST WILSHIRE SECURITIES MANAGEMENT INC	517,121	1.83%	$7.1M	-5,717 (-1.1%)
17	JPMORGAN CHASE & CO	460,466	1.63%	$6.3M	+185,159 (+67.3%)
18	Bank of New York Mellon Corp	457,365	1.62%	$6.3M	-9,532 (-2.0%)
19	MORGAN STANLEY	437,019	1.54%	$6.0M	+134,321 (+44.4%)
20	CITADEL ADVISORS LLC	426,023	1.51%	$5.8M	-46,024 (-9.7%)
21	JACOBS LEVY EQUITY MANAGEMENT, INC	325,825	1.15%	$4.5M	-25,162 (-7.2%)
22	GOLDMAN SACHS GROUP INC	315,376	1.11%	$4.3M	+42,986 (+15.8%)
23	PANAGORA ASSET MANAGEMENT INC	299,431	1.06%	$4.1M	+143,163 (+91.6%)
24	Connor, Clark & Lunn Investment Management Ltd.	295,422	1.04%	$4.0M	-67,686 (-18.6%)
25	D. E. Shaw & Co., Inc.	287,612	1.02%	$3.9M	+218,071 (+313.6%)
26	Allspring Global Investments Holdings, LLC	283,513	1.00%	$3.8M	+201,594 (+246.1%)
27	RENAISSANCE TECHNOLOGIES LLC	282,559	1.00%	$3.9M	+26,759 (+10.5%)
28	BNP PARIBAS FINANCIAL MARKETS	279,195	0.99%	$3.8M	+107,603 (+62.7%)
29	Russell Investments Group, Ltd.	266,486	0.94%	$3.7M	-90,299 (-25.3%)
30	De Lisle Partners LLP	258,790	0.91%	$3.5M	—
31	NORTHERN TRUST CORP	254,670	0.90%	$3.5M	+14,118 (+5.9%)
32	ALGERT GLOBAL LLC	244,585	0.86%	$3.4M	+52,060 (+27.0%)
33	VANGUARD PORTFOLIO MANAGEMENT LLC	235,777	0.83%	$3.2M	+47,616 (+25.3%)
34	Qube Research & Technologies Ltd	225,869	0.80%	$3.1M	+5,293 (+2.4%)
35	MARSHALL WACE, LLP	223,310	0.79%	$3.1M	-89,986 (-28.7%)
36	Man Group plc	194,010	0.69%	$2.7M	+155,189 (+399.8%)
37	VANGUARD FIDUCIARY TRUST CO	189,639	0.67%	$2.6M	+8,301 (+4.6%)
38	GSA CAPITAL PARTNERS LLP	182,277	0.64%	$2.5M	-3,257 (-1.8%)
39	CenterBook Partners LP	154,058	0.54%	$2.1M	-277,367 (-64.3%)
40	MILLENNIUM MANAGEMENT LLC	135,823	0.48%	$1.9M	-340,588 (-71.5%)
41	NORGES BANK	126,500	0.45%	$1.7M	NEW
42	Trexquant Investment LP	122,418	0.43%	$1.7M	NEW
43	ROYAL BANK OF CANADA	118,126	0.42%	$1.6M	+17,429 (+17.3%)
44	ALLIANCEBERNSTEIN L.P.	116,280	0.41%	$1.3M	+2,540 (+2.2%)
45	Prescott Group Capital Management, L.L.C.	114,392	0.40%	$1.6M	-9,000 (-7.3%)
46	JANE STREET GROUP, LLC	106,381	0.38%	$1.5M	-206,794 (-66.0%)
47	MONEY CONCEPTS CAPITAL CORP	103,723	0.37%	$1.4M	-526 (-0.5%)
48	CARY STREET PARTNERS FINANCIAL LLC	96,510	0.34%	$1.3M	+2,470 (+2.6%)
49	Walleye Capital LLC	96,242	0.34%	$1.3M	+72,118 (+298.9%)
50	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	87,394	0.31%	$1.2M	+16,606 (+23.5%)
51	PRICE T ROWE ASSOCIATES INC /MD/	75,461	0.27%	$1.0M	+12,270 (+19.4%)
52	Jump Financial, LLC	74,520	0.26%	$1.0M	-4,080 (-5.2%)
53	VICTORY CAPITAL MANAGEMENT INC	73,400	0.26%	$1.0M	-47,551 (-39.3%)
54	Archon Capital Management LLC	70,000	0.25%	$959K	NEW
55	AMERIPRISE FINANCIAL INC	64,510	0.23%	$884K	-2,660 (-4.0%)
56	BANK OF AMERICA CORP /DE/	57,652	0.20%	$790K	+15,429 (+36.5%)
57	Point72 Asset Management, L.P.	56,591	0.20%	$775K	+34,329 (+154.2%)
58	WINTON GROUP Ltd	56,121	0.20%	$769K	+13,092 (+30.4%)
59	Nuveen, LLC	54,378	0.19%	$745K	+12,862 (+31.0%)
60	XTX Topco Ltd	54,338	0.19%	$744K	-14,807 (-21.4%)
61	Pacific Ridge Capital Partners, LLC	53,779	0.19%	$737K	-623 (-1.1%)
62	MARTINGALE ASSET MANAGEMENT L P	53,702	0.19%	$736K	-3,803 (-6.6%)
63	Assenagon Asset Management S.A.	53,236	0.19%	$729K	+26,618 (+100.0%)
64	UBS Group AG	53,039	0.19%	$727K	+23,617 (+80.3%)
65	VERUS CAPITAL PARTNERS, LLC	52,175	0.18%	$715K	+31,275 (+149.6%)
66	OCCUDO QUANTITATIVE STRATEGIES LP	51,976	0.18%	$712K	+35,752 (+220.4%)
67	Squarepoint Ops LLC	51,297	0.18%	$703K	-1,467 (-2.8%)
68	STRS OHIO	49,700	0.18%	$681K	-4,500 (-8.3%)
69	Financial Plan, Inc.	47,615	0.17%	$652K	—
70	COUNTRY TRUST BANK	45,237	0.16%	$620K	-120,000 (-72.6%)
71	EntryPoint Capital, LLC	44,036	0.16%	$603K	+5,215 (+13.4%)
72	Invesco Ltd.	42,761	0.15%	$586K	-9,010 (-17.4%)
73	CITIGROUP INC	40,587	0.14%	$556K	+24,533 (+152.8%)
74	WELLS FARGO & COMPANY/MN	40,425	0.14%	$554K	+13,203 (+48.5%)
75	VOYA INVESTMENT MANAGEMENT LLC	40,114	0.14%	$550K	+1,391 (+3.6%)
76	Boston Partners	38,994	0.14%	$534K	-13,713 (-26.0%)
77	Y-Intercept (Hong Kong) Ltd	36,536	0.13%	$501K	NEW
78	PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO	36,109	0.13%	$495K	—
79	Dynamic Technology Lab Private Ltd	34,977	0.12%	$479K	+1,375 (+4.1%)
80	RHUMBLINE ADVISERS	34,188	0.12%	$468K	+580 (+1.7%)
81	BRIDGEWAY CAPITAL MANAGEMENT, LLC	34,000	0.12%	$466K	—
82	LOS ANGELES CAPITAL MANAGEMENT LLC	31,169	0.11%	$427K	+19,653 (+170.7%)
83	SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC	29,351	0.10%	$402K	+3,760 (+14.7%)
84	DEUTSCHE BANK AG\	29,271	0.10%	$401K	+4,861 (+19.9%)
85	Brevan Howard Capital Management LP	28,985	0.10%	$397K	-1,087 (-3.6%)
86	Hillsdale Investment Management Inc.	28,900	0.10%	$396K	NEW
87	Schonfeld Strategic Advisors LLC	28,024	0.10%	$384K	NEW
88	Creative Planning	27,612	0.10%	$378K	+7,301 (+35.9%)
89	BARCLAYS PLC	21,704	0.08%	$297K	-4,510 (-17.2%)
90	CANADA PENSION PLAN INVESTMENT BOARD	21,000	0.07%	$288K	+9,700 (+85.8%)
91	IEQ CAPITAL, LLC	20,579	0.07%	$282K	+1,105 (+5.7%)
92	OSAIC HOLDINGS, INC.	20,531	0.07%	$281K	-4 (-0.0%)
93	SATURNA CAPITAL CORP	20,275	0.07%	$278K	+2,669 (+15.2%)
94	Bridge City Capital, LLC	20,223	0.07%	$277K	-10,777 (-34.8%)
95	Magnetar Financial LLC	20,108	0.07%	$275K	NEW
96	PARK AVENUE SECURITIES LLC	18,127	0.06%	$248K	NEW
97	Engineers Gate Manager LP	17,970	0.06%	$246K	NEW
98	Balyasny Asset Management L.P.	17,932	0.06%	$246K	NEW
99	Mariner, LLC	17,420	0.06%	$239K	+7,043 (+67.9%)
100	BOOTHBAY FUND MANAGEMENT, LLC	16,841	0.06%	$231K	NEW
101	MetLife Investment Management, LLC	14,935	0.05%	$205K	+4,248 (+39.7%)
102	Greenhaven Road Investment Management, L.P.	12,947	0.05%	$177K	-1,022 (-7.3%)
103	WEALTH ENHANCEMENT ADVISORY SERVICES, LLC	12,581	0.04%	$157K	NEW
104	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	12,570	0.04%	$172K	-325 (-2.5%)
105	Entropy Technologies, LP	12,294	0.04%	$168K	NEW
106	SummitTX Capital, L.P.	12,226	0.04%	$167K	NEW
107	State of Wyoming	12,108	0.04%	$166K	+2,422 (+25.0%)
108	Vanguard Global Advisers, LLC	11,620	0.04%	$159K	—
109	DIVERSIFIED TRUST CO	11,275	0.04%	$154K	NEW
110	Cerity Partners LLC	11,136	0.04%	$153K	NEW
111	Vident Advisory, LLC	11,079	0.04%	$152K	—
112	ExodusPoint Capital Management, LP	10,938	0.04%	$150K	-52,779 (-82.8%)
113	Graham Capital Management, L.P.	10,711	0.04%	$147K	NEW
114	Police & Firemen's Retirement System of New Jersey	7,820	0.03%	$107K	—
115	NEW YORK STATE COMMON RETIREMENT FUND	6,600	0.02%	$90K	—
116	PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO	5,595	0.02%	$77K	—
117	Daytona Street Capital LLC	3,550	0.01%	$44K	-3,150 (-47.0%)
118	BOKF, NA	2,923	0.01%	$40K	—
119	Legal & General Group Plc	2,793	0.01%	$38K	+362 (+14.9%)
120	Ameritas Investment Partners, Inc.	2,591	0.01%	$35K	—
121	Tower Research Capital LLC (TRC)	2,568	0.01%	$35K	-2,018 (-44.0%)
122	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	2,484	0.01%	$34K	—
123	NEW YORK STATE TEACHERS RETIREMENT SYSTEM	2,421	0.01%	$33K	—
124	EverSource Wealth Advisors, LLC	2,301	0.01%	$32K	+66 (+3.0%)
125	Arax Advisory Partners	921	0.00%	$13K	+774 (+526.5%)
126	FMR LLC	892	0.00%	$12K	+184 (+26.0%)
127	Covestor Ltd	703	0.00%	$10K	+76 (+12.1%)
128	Allworth Financial LP	670	0.00%	$9K	+411 (+158.7%)
129	IFP Advisors, Inc	616	0.00%	$8K	+592 (+2466.7%)
130	Sterling Capital Management LLC	440	0.00%	$6K	-291 (-39.8%)
131	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	376	0.00%	$5K	-1,091 (-74.4%)
132	GAMMA Investing LLC	363	0.00%	$5K	—
133	Essential Partners LLC	311	0.00%	$4K	+35 (+12.7%)
134	Farther Finance Advisors, LLC	307	0.00%	$4K	+49 (+19.0%)
135	Parallel Advisors, LLC	299	0.00%	$4K	NEW
136	True Wealth Design, LLC	259	0.00%	$4K	+55 (+27.0%)
137	ROTHSCHILD INVESTMENT LLC	253	0.00%	$3K	+80 (+46.2%)
138	JONES FINANCIAL COMPANIES LLLP	175	0.00%	$2K	—
139	Clearstead Advisors, LLC	82	0.00%	$1K	NEW
140	NISA INVESTMENT ADVISORS, LLC	76	0.00%	$1K	—
141	Optiver Holding B.V.	66	0.00%	$904	-200 (-75.2%)
142	Basecamp Wealth Advisors LLC	55	0.00%	$754	+7 (+14.6%)
143	Torren Management, LLC	54	0.00%	$740	—
144	SJS Investment Consulting Inc.	51	0.00%	$699	+6 (+13.3%)
145	Parkside Financial Bank & Trust	40	0.00%	$549	—
146	FIFTH THIRD BANCORP	35	0.00%	$480	-68 (-66.0%)
147	Wealth Enhancement Trust Services, Inc.	20	0.00%	$274	NEW
148	Caitong International Asset Management Co., Ltd	11	0.00%	$151	+10 (+1000.0%)
149	PNC Financial Services Group, Inc.	10	0.00%	$137	NEW
150	JPL Wealth Management, LLC	4	0.00%	$55	NEW

Exited since 2026-03-31 (16 filers; largest 16 shown)

Congruence Capital, LLC	−304,145
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	−143,817
HRT FINANCIAL LP	−96,316
Quantbot Technologies LP	−35,965
BAILARD, INC.	−24,700
Aquatic Capital Management LLC	−23,024
Quadrature Capital Ltd	−20,730
SUSQUEHANNA INTERNATIONAL GROUP, LLP	−18,054
KETTLE HILL CAPITAL MANAGEMENT, LLC	−15,005
AXQ CAPITAL, LP	−12,364
CWM, LLC	−11,263
MAI Capital Management	−664
QUADRANT CAPITAL GROUP LLC	−211
Root Financial Partners, LLC	−44
Wealth Preservation Advisors, LLC	−34
Sunbelt Securities, Inc.	−6

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
BlackRock, Inc.	SCHEDULE 13G/A	2026-04-07	2026-03-31	1,920,729	6.8%
The Vanguard Group	SCHEDULE 13G/A	2026-03-27	2026-03-13	0	0%
HARVEY PARTNERS, LLC	SCHEDULE 13G/A	2025-08-14	2025-06-30	1,221,762	4.4%
Azarias Capital Management, L.P.	SCHEDULE 13G/A	2025-04-09	2024-12-31	1,215,415	4.4%
First Wilshire Securities Management, Inc.	SCHEDULE 13G/A	2025-02-13	2024-12-31	1,346,563	4.9%
GEORGE A. NEEDHAM	SCHEDULE 13G	2025-02-13	2024-12-31	1,420,000	5.15%
NEEDHAM AGGRESSIVE GROWTH FUND	SCHEDULE 13G	2025-02-13	2024-12-31	1,420,000	5.15%
NEEDHAM ASSET MANAGEMENT, LLC	SCHEDULE 13G	2025-02-13	2024-12-31	1,420,000	5.15%
NEEDHAM INVESTMENT MANAGEMENT LLC	SCHEDULE 13G	2025-02-13	2024-12-31	1,420,000	5.15%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.