Matrix Service Co

MTRX

Exchange: Nasdaq
Industry: Construction - Special Trade Contractors
SEC CIK: 0000866273

SEC filings (opens in a new tab)

No open-market purchases or sales by Matrix Service Co insiders were filed in the last 90 days; 150 institutions reported holding it in 13F filings for Q2 2026, worth $341.1M in total; no superinvestor holds it.

Q2 2026 vs. Q1 2026

How the institutions holding Matrix Service Co changed between Q1 2026 and Q2 2026.

All holders in Q2 2026 All holders in Q1 2026

13F holders of MTRX: Q1 2026 compared with Q2 2026
Measure	Q1 2026	Of which not filed for Q2 2026	Q2 2026	Change
Holders	144	2	150	+8
Shares	24.3M	11.3K	24.9M	+665.4K (+2.7%)
Value	$278.6M	$129.4K	$341.1M	+$62.6M (+22.5%)

2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (22)

Institutions that held Matrix Service Co at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to MTRX in Q2 2026
Institution	Shares	Value	% of portfolio
Norges Bank	126,500	$1.73M	0.00%
Trexquant Investment LP	122,418	$1.68M	0.01%
Archon Capital Management LLC	70,000	$959.0K	0.39%
Y-Intercept (Hong Kong) Ltd	36,536	$500.5K	0.01%
Hillsdale Investment Management Inc.	28,900	$395.9K	0.01%
Schonfeld Strategic Advisors LLC	28,024	$383.9K	0.00%
Magnetar Financial LLC	20,108	$275.5K	0.00%
Park Avenue Securities LLC	18,127	$248.0K	0.00%
Engineers Gate Manager LP	17,970	$246.2K	0.00%
Balyasny Asset Management LLC	17,932	$245.7K	0.00%
Boothbay Fund Management, LLC	16,841	$230.7K	0.00%
Entropy Technologies, LP	12,294	$168.4K	0.01%
SummitTX Capital, L.P.	12,226	$167.5K	0.00%
Wealth Enhancement Advisory Services, LLC	12,581	$157.1K	0.00%
Diversified Trust Co	11,275	$154.5K	0.00%
Cerity Partners LLC	11,136	$152.6K	0.00%
Graham Capital Management, L.P.	10,711	$146.7K	0.00%
Parallel Advisors, LLC	299	$4.10K	0.00%
Clearstead Advisors, LLC	82	$1.12K	0.00%
Wealth Enhancement Trust Services, Inc.	20	$274	0.00%
The PNC Financial Services Group, Inc.	10	$137	0.00%
JPL Wealth Management, LLC	4	$55	0.00%

Sold out (14)

Institutions that held Matrix Service Co at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of MTRX in Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
Congruence Capital, LLC	304,145	$3.49M
Arrowstreet Capital, Limited Partnership	143,817	$1.65M
HRT Financial LP	96,316	$1.10M
Quantbot Technologies LP	35,965	$412.9K
Bailard, Inc.	24,700	$283.6K
Aquatic Capital Management LLC	23,024	$264.3K
Quadrature Capital Ltd	20,730	$238.0K
Susquehanna International Group, LLP	18,054	$207.3K
Kettle Hill Capital Management, LLC	15,005	$172.3K
Axq Capital, LP	12,364	$141.9K
MAI Capital Management	664	$7.62K
Quadrant Capital Group LLC	211	$2.42K
Root Financial Partners, LLC	44	$505
Wealth Preservation Advisors, LLC	34	$390

Not filed for Q2 2026 yet (2)

Institutions that held Matrix Service Co at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MTRX in Q1 2026 that haven't filed for Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
CWM, LLC	11,263	$129.3K
Sunbelt Securities, Inc.	6	$69