MTRX · NASDAQ · Engineering & Construction

Matrix Service (MTRX)

Builds and maintains storage, power, and industrial infrastructure for energy markets.

$9.99
vs last close−0.04 (−0.39%)

13F · 13D/G · Form 4

Institutions≈ 88.52%24.91M shares
155 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail
Insiders5.22%1.47M shares
14 holders · as of Sep 14, 2026
Other≈ 6.26%1.76M shares
remainder

28.13M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing

This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.

13F · 13D/G · Form 4

HolderStakeSharesDate
BlackRock, Inc.Institution
7.60%2.14Mas of Jun 30, 2026
LSV Asset ManagementInstitution
6.43%1.81Mfiled Feb 6, 2017
Needham Investment Management LLCInstitution
5.10%1.44Mas of Jun 30, 2026
American Century Companies IncInstitution
4.29%1.21Mas of Jun 30, 2026
Gendell Jeffrey LInstitution
4.24%1.19Mas of Jun 30, 2026
Vanguard Capital Management LLCInstitution
4.22%1.19Mas of Jun 30, 2026
First Eagle Investment Management, LLCInstitution
3.52%990,217as of Jun 30, 2026
Acadian Asset Management LLCInstitution
3.10%871,501as of Jun 30, 2026
Harvey Partners, LLCInstitution
2.90%815,023as of Jun 30, 2026
Two Sigma Investments, LPInstitution
2.66%748,118as of Jun 30, 2026
Geode Capital Management, LLCInstitution
2.56%721,322as of Jun 30, 2026
Azarias Capital Management, L.P.Institution
2.39%673,692as of Jun 30, 2026
Dimensional Fund Advisors LPInstitution
2.36%665,266as of Jun 30, 2026
Westerly Capital Management, LLCInstitution
2.12%595,930as of Jun 30, 2026
AQR Capital Management LLCInstitution
2.11%594,197as of Jun 30, 2026
John R. HewittInsiderdirector, officer: President & CEO
2.07%581,806filed May 12, 2026
State Street CorpInstitution
2.07%581,006as of Jun 30, 2026
First Wilshire Securities Management IncInstitution
1.84%517,121as of Jun 30, 2026
JPMorgan Chase & CoInstitution
1.64%460,466as of Jun 30, 2026
Bank of New York Mellon CorpInstitution
1.63%457,365as of Jun 30, 2026
Morgan StanleyInstitution
1.55%437,019as of Jun 30, 2026
Citadel Advisors LLCInstitution
1.51%426,023as of Jun 30, 2026
Jacobs Levy Equity Management, IncInstitution
1.16%325,825as of Jun 30, 2026
Goldman Sachs Group IncInstitution
1.12%315,376as of Jun 30, 2026
Panagora Asset Management IncInstitution
1.06%299,431as of Jun 30, 2026

13F, as of Jun 30, 2026

155 holders · 24.91M shares · 25 new positions · 91 increased · 42 reduced · 16 closed

HolderShares% outstandingChg q/qFiled
BlackRock, Inc.2.14M7.60%+125.2KAug 7, 2026
Needham Investment Management LLC1.44M5.10%0Aug 14, 2026
American Century Companies Inc1.21M4.29%+225.2KAug 12, 2026
Gendell Jeffrey L1.19M4.24%−38.8KAug 14, 2026
Vanguard Capital Management LLC1.19M4.22%−8.4KAug 13, 2026
First Eagle Investment Management, LLC990.2K3.52%+139.4KAug 24, 2026
Acadian Asset Management LLC871.5K3.10%+395.4KAug 13, 2026
Harvey Partners, LLC815.0K2.90%−90.0KAug 14, 2026

13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
BlackRock, Inc.6.80%1.92M13GApr 7, 2026
Needham Investment Management LLC5.15%1.42M13GFeb 13, 2025

Form 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Jun 12, 2026
Justin D. Sheetsofficer: SVP, Enterprise Services
Sale16,991$13.5064,337
Jun 15, 2026
Kevin S. Cavanahofficer: VP Finance & CFO
Sale1,418$14.0387,113
Jun 12, 2026
Kevin S. Cavanahofficer: VP Finance & CFO
Sale2,073$14.0088,531
Jun 5, 2026
Kevin S. Cavanahofficer: VP Finance & CFO
Sale6,509$14.1390,604
Jun 4, 2026
Kevin S. Cavanahofficer: VP Finance & CFO
Sale50,000$14.1097,113
May 26, 2026
Kevin S. Cavanahofficer: VP Finance & CFO
Sale60,000$12.90147,113
May 8, 2026
John R. Hewittdirector, officer: President & CEO
Sale36,000$12.50581,806
Feb 18, 2026
Nancy E. Austinofficer: VP, Chief Admin Officer
Sale4,193$11.29106,138
Nov 25, 2025
Shawn P. Payneofficer: President, Eng & Constr
Sale5,231$11.42102,179
Nov 20, 2025
Shawn P. Payneofficer: President, Eng & Constr
Sale3,019$11.42107,410

House and Senate disclosures

Not reported.