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Matrix Service Co

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

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.

13F holders, Q3 2025

Institutional positions in Matrix Service Co as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
143
+18 vs. Q2 2025
Shares held
23.9M
−283.1K (−1.2%) vs. Q2 2025
Total value
$312.2M
−$14.1M (−4.3%) vs. Q2 2025
New holders
30
55 more added
Sold out
12
39 more reduced

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MTRX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 143 institutions
Q1 2021: 119 institutionsQ2 2021: 105 institutionsQ3 2021: 108 institutionsQ4 2021: 122 institutionsQ1 2022: 117 institutionsQ2 2022: 100 institutionsQ3 2022: 76 institutionsQ4 2022: 86 institutionsQ1 2023: 90 institutionsQ2 2023: 81 institutionsQ3 2023: 87 institutionsQ4 2023: 103 institutionsQ1 2024: 110 institutionsQ2 2024: 112 institutionsQ3 2024: 117 institutionsQ4 2024: 123 institutionsQ1 2025: 122 institutionsQ2 2025: 125 institutionsQ3 2025: 143 institutionsQ4 2025: 144 institutionsQ1 2026: 144 institutionsQ2 2026: 150 institutions
Value heldQ3 2025: $312.2M
Q1 2021: $307.8MQ2 2021: $235.6MQ3 2021: $238.7MQ4 2021: $178.3MQ1 2022: $187.4MQ2 2022: $110.5MQ3 2022: $86.7MQ4 2022: $132.6MQ1 2023: $117.0MQ2 2023: $122.1MQ3 2023: $243.8MQ4 2023: $209.0MQ1 2024: $292.2MQ2 2024: $224.9MQ3 2024: $268.3MQ4 2024: $272.3MQ1 2025: $293.4MQ2 2025: $326.3MQ3 2025: $312.2MQ4 2025: $287.2MQ1 2026: $278.6MQ2 2026: $341.1M
Institutions holding MTRX and their total value by quarter
QuarterHoldersValue
Q2 2026150$341.1M
Q1 2026144$278.6M
Q4 2025144$287.2M
Q3 2025143$312.2M
Q2 2025125$326.3M
Q1 2025122$293.4M
Q4 2024123$272.3M
Q3 2024117$268.3M
Q2 2024112$224.9M
Q1 2024110$292.2M
Q4 2023103$209.0M
Q3 202387$243.8M
Q2 202381$122.1M
Q1 202390$117.0M
Q4 202286$132.6M
Q3 202276$86.7M
Q2 2022100$110.5M
Q1 2022117$187.4M
Q4 2021122$178.3M
Q3 2021108$238.7M
Q2 2021105$235.6M
Q1 2021119$307.8M

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Matrix Service Co; share changes are against Q2 2025.

Institutions holding MTRX in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Bank of America Corp91,970$1.20M0.00%−145,017−61.2%Reduced
Algert Global LLC95,829$1.25M0.02%+83,917+704.5%Added
Hudson Bay Capital Management LP100,000$1.31M0.01%+100,000New
Cubist Systematic Strategies, LLC102,523$1.34M0.02%+58,563+133.2%Added
Money Concepts Capital Corp104,647$1.37M0.08%−444−0.4%Reduced
Trexquant Investment LP134,106$1.75M0.02%+48,556+56.8%Added
1492 Capital Management LLC156,391$2.05M0.83%−148−0.1%Reduced
Panagora Asset Management Inc158,413$2.07M0.01%+8,706+5.8%Added
Jane Street Group, LLC158,776$2.08M0.00%+139,955+743.6%Added
Arrowstreet Capital, Limited Partnership177,321$2.32M0.00%+153,795+653.7%Added
Stanley-Laman Group, Ltd.211,280$2.76M0.40%−7,333−3.4%Reduced
Essex Investment Management Co LLC212,743$2.78M0.43%+7,247+3.5%Added
Qube Research & Technologies Ltd218,738$2.86M0.00%+102,540+88.2%Added
Oberweis Asset Management Inc221,075$2.89M0.11%00.0%Unchanged
AYAL Capital Advisors Ltd225,000$2.94M1.70%+225,000New
Northern Trust Corp243,719$3.19M0.00%+3,235+1.3%Added
Renaissance Technologies LLC244,600$3.20M0.00%+11,400+4.9%Added
De Lisle Partners LLP257,935$3.38M0.41%+20,000+8.4%Added
Morgan Stanley291,852$3.82M0.00%+88,102+43.2%Added
Jacobs Levy Equity Management, Inc292,211$3.82M0.02%−17,699−5.7%Reduced
Acadian Asset Management LLC295,438$3.86M0.01%+15,044+5.4%Added
AQR Capital Management LLC306,700$4.01M0.00%+9,506+3.2%Added
JPMorgan Chase & Co306,848$4.01M0.00%+93,927+44.1%Added
Goldman Sachs Group Inc315,680$4.13M0.00%−17,101−5.1%Reduced
Russell Investments Group, Ltd.327,733$4.29M0.00%+230.0%Added
Connor, Clark & Lunn Investment Management Ltd.341,669$4.47M0.01%+55,483+19.4%Added
CenterBook Partners LP407,721$5.33M0.26%+183,288+81.7%Added
Bank of New York Mellon Corp528,859$6.92M0.00%+61,287+13.1%Added
State Street Corp530,968$6.95M0.00%−13,066−2.4%Reduced
Royce & Associates LP550,782$7.20M0.07%−156,525−22.1%Reduced
First Eagle Investment Management, LLC581,874$7.61M0.01%+72,680+14.3%Added
Millennium Management LLC630,396$8.25M0.01%+200,189+46.5%Added
Azarias Capital Management, L.P.634,843$8.30M3.29%+7,077+1.1%Added
Geode Capital Management, LLC644,612$8.43M0.00%+24,337+3.9%Added
First Wilshire Securities Management Inc692,877$9.06M2.41%−208,131−23.1%Reduced
American Century Companies Inc788,921$10.3M0.01%+117,523+17.5%Added
Dimensional Fund Advisors LP810,713$10.6M0.00%−83,525−9.3%Reduced
Harvey Partners, LLC852,381$11.1M1.01%−369,381−30.2%Reduced
Gendell Jeffrey L946,474$12.4M0.23%+332,065+54.0%Added
Westerly Capital Management, LLC1,100,000$14.4M4.56%+280,000+34.1%Added
Needham Investment Management LLC1,435,000$18.8M1.31%+15,000+1.1%Added
Vanguard Group Inc1,522,943$19.9M0.00%+60,955+4.2%Added
BlackRock, Inc.3,304,511$43.2M0.00%+28,216+0.9%Added
ACK Asset Management LLC0$00.00%−1,087,100−100.0%Sold out
RBF Capital, LLC0$00.00%−100,000−100.0%Sold out
Susquehanna International Group, LLP0$00.00%−86,810−100.0%Sold out
Verition Fund Management LLC0$00.00%−21,484−100.0%Sold out
SEI Investments Co0$00.00%−15,170−100.0%Sold out
Almanack Investment Partners, LLC.0$00.00%−15,119−100.0%Sold out
Man Group plc0$00.00%−14,971−100.0%Sold out
Y-Intercept (Hong Kong) Ltd0$00.00%−13,550−100.0%Sold out
Manufacturers Life Insurance Company, The0$00.00%−10,115−100.0%Sold out
Raymond James Financial Inc0$00.00%−7,442−100.0%Sold out
Private Wealth Management Group, LLC0$00.00%−87−100.0%Sold out
Whipplewood Advisors, LLC0$00.00%−68−100.0%Sold out