Matrix Service Co (MTRX) Institutional Ownership

Ownership Summary

According to SEC filings for the period ending September 2025, Matrix Service Co (NASDAQ:MTRX) is held by 141 institutional firms.

• Matrix Service saw its institutional ownership percentage fell to 85.0% in September 2025 from 87.5% in June 2025.
• On a quarter-over-quarter basis, institutional holdings shifted by 3.75%, with a year-over-year an increase of 21.55% in the count of filers.
• During the quarter, 76 institutions bought more Matrix Service shares, 47 sold shares, and 18 of the 141 total investors held their position steady.
• The total number of shares held by institutions in Matrix Service increased to 23.85Mn as of September 2025, a net change of up by 861.06K shares quarter on quarter, and up 622.31K shares year over year.
• BlackRock, Inc. continues to be the largest institutional holder of Matrix Service as of September 30, 2025, with a position of 3.30Mn shares, representing 11.77% of the company's outstanding stock.
• Among the most significant buyers of Matrix Service during September 2025 were GENDELL JEFFREY L (332.06K), WESTERLY CAPITAL MANAGEMENT, LLC (280.00K), AYAL Capital Advisors Ltd (225.00K), MILLENNIUM MANAGEMENT LLC (200.19K), CenterBook Partners LP (183.29K).
• Leading sellers of Matrix Service stock in September 2025 included Boston Partners (790.35K), Harvey Partners, LLC (369.38K), FIRST WILSHIRE SECURITIES MANAGEMENT INC (208.13K), PRUDENTIAL FINANCIAL INC (178.90K), ROYCE & ASSOCIATES LP (156.53K).
• The top 10 institutional holders of Matrix Service for the quarter ending September 2025 included BlackRock, Inc. (3.30Mn), VANGUARD GROUP INC (1.52Mn), NEEDHAM INVESTMENT MANAGEMENT LLC (1.44Mn), WESTERLY CAPITAL MANAGEMENT, LLC (1.10Mn), GENDELL JEFFREY L (946.47K), Harvey Partners, LLC (852.38K), DIMENSIONAL FUND ADVISORS LP (810.71K), AMERICAN CENTURY COMPANIES INC (788.92K), FIRST WILSHIRE SECURITIES MANAGEMENT INC (692.88K), GEODE CAPITAL MANAGEMENT, LLC (644.61K).