Matrix Service CO Schedule 13G passive stakes

The Vanguard Group has filed an amended Schedule 13G, reporting zero beneficial ownership in Matrix Service Co following an internal realignment.

BlackRock, Inc. has increased its beneficial ownership in Matrix Service Company to 12.4% of common stock, holding 3,493,231 shares.

Harvey Partners, LLC has disclosed a 4.4% beneficial ownership stake in Matrix Service Company as of June 30, 2025, holding 1,221,762 shares.

BlackRock, Inc. has filed an amended Schedule 13G, reporting a 10.6% passive beneficial ownership stake in Matrix Service Company as of March 31, 2025.

Azarias Capital Management, L.P. has filed an amended Schedule 13G, reporting a reduction in its beneficial ownership of Matrix Service Co common stock to 4.4% as of December 31, 2024.

Azarias Capital Management, L.P. has filed an amended Schedule 13G, correcting its beneficial ownership in Matrix Service Co to 1,435,569 shares, representing 5.2% of the common stock, as of September 30, 2024.

Needham Investment Management LLC and its affiliates have reported a 5.15% passive beneficial ownership stake in Matrix Service Co., totaling 1,420,000 shares of common stock.

First Wilshire Securities Management, Inc. has disclosed a 4.9% passive beneficial ownership stake in Matrix Service Co. as of December 31, 2024.