MATRIX SERVICE CO (MTRX) Stock Institutional Trading Activity


MATRIX SERVICE CO (MTRX) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, First Eagle U.S. Value, and ARK Invest. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

Explore more:

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q2 2017Renaissance Technologies LLCBuy43,767104,426$976
Q3 2016Renaissance Technologies LLCBuy42,85960,659$1,138
Q2 2016Renaissance Technologies LLCSell-49,55917,800$294
Q1 2016Renaissance Technologies LLCBuy8,55967,359$1,192
Q4 2015Renaissance Technologies LLCSell-24,05958,800$1,208
Q3 2015Renaissance Technologies LLCBuy31,70082,859$1,862
Q1 2015Renaissance Technologies LLCSell-32,40051,159$898
Q4 2014Renaissance Technologies LLCBuy27,40583,559$1,865
Q3 2014Renaissance Technologies LLCSell-140,96956,154$1,354
Q2 2014Renaissance Technologies LLCBuy88,597197,123$6,464
Q1 2014Renaissance Technologies LLCBuy39,326108,526$3,666
Q4 2013Renaissance Technologies LLCSell-61,42369,200$1,691
Q3 2013Renaissance Technologies LLCBuy119,623130,623$2,563
Q2 2013Renaissance Technologies LLCBuy11,00011,000$171

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.