MATRIX SERVICE CO (MTRX) Institutional Ownership Changes & 13F Activity

MATRIX SERVICE CO (MTRX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Westerly Capital Management, Llc, Millennium Management Llc, D. E. Shaw & Co., Inc., Jane Street Group, Llc, and Man Group Plc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Citadel Advisors LlcSell-46,024-9.7%426,023$5.84MQ2 2026Sep 02, 2026
First Eagle U.S. ValueBuy+139,408+16.4%990,217$13.57MQ2 2026Aug 24, 2026
California State Teachers Retirement SystemSell-1,091-74.4%376$5.15KQ2 2026Aug 24, 2026
Westerly Capital Management, LlcSell-369,070-38.2%595,930$8.16MQ2 2026Aug 14, 2026
Millennium Management LlcSell-340,588-71.5%135,823$1.86MQ2 2026Aug 14, 2026
D. E. Shaw & Co., Inc.Buy+218,071+313.6%287,612$3.94MQ2 2026Aug 14, 2026
Jane Street Group, LlcSell-206,794-66.0%106,381$1.46MQ2 2026Aug 14, 2026
Man Group PlcBuy+155,189+399.8%194,010$2.66MQ2 2026Aug 14, 2026
Trexquant Investment LpBuy+122,418122,418$1.68MQ2 2026Aug 14, 2026
Two Sigma Investments, LpBuy+110,427+17.3%748,118$10.25MQ2 2026Aug 14, 2026
Aqr Capital Management LlcBuy+95,256+19.1%594,197$8.14MQ2 2026Aug 14, 2026
Harvey Partners, LlcSell-89,977-9.9%815,023$11.17MQ2 2026Aug 14, 2026
Archon Capital Management LlcBuy+70,00070,000$959.00KQ2 2026Aug 14, 2026
Ameriprise Financial IncBuy+64,51064,510$883.79KQ2 2026Aug 14, 2026
Exoduspoint Capital Management, LpSell-52,779-82.8%10,938$149.85KQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+42,986+15.8%315,376$4.32MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+42,76142,761$585.83KQ2 2026Aug 14, 2026
Gendell Jeffrey LSell-38,778-3.1%1,192,529$16.34MQ2 2026Aug 14, 2026
Point72 Asset Management, L.P.Buy+34,329+154.2%56,591$775.30KQ2 2026Aug 14, 2026
Schonfeld Strategic Advisors LlcBuy+28,02428,024$383.93KQ2 2026Aug 14, 2026
Jacobs Levy Equity Management, IncSell-25,162-7.2%325,825$4.46MQ2 2026Aug 14, 2026
Magnetar Financial LlcBuy+20,10820,108$275.48KQ2 2026Aug 14, 2026
Engineers Gate Manager LpBuy+17,97017,970$246.19KQ2 2026Aug 14, 2026
Balyasny Asset Management L.P.Buy+17,93217,932$245.67KQ2 2026Aug 14, 2026
Royal Bank Of CanadaBuy+17,429+17.3%118,126$1.62MQ2 2026Aug 14, 2026
Boothbay Fund Management, LlcBuy+16,84116,841$230.72KQ2 2026Aug 14, 2026
Charles Schwab Investment Management IncBuy+16,606+23.5%87,394$1.20MQ2 2026Aug 14, 2026
Bank Of America CorpBuy+15,429+36.5%57,652$789.83KQ2 2026Aug 14, 2026
Xtx Topco LtdSell-14,807-21.4%54,338$744.43KQ2 2026Aug 14, 2026
Wells Fargo & Company/MnBuy+13,203+48.5%40,425$553.82KQ2 2026Aug 14, 2026
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Frequently asked questions about MTRX activity

  • Which institutional owners are buying MTRX?

    Institutional owners buying MTRX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in MTRX activity?

    "Buy" means an investor increased their reported position in MTRX compared to the prior reporting period. This reflects growing exposure to MATRIX SERVICE CO (MTRX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in MTRX increasing?

    Institutional interest in MTRX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.