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.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Citadel Advisors Llc | Sell | -46,024 | -9.7% | 426,023 | $5.84M | Q2 2026 | Sep 02, 2026 |
| First Eagle U.S. Value | Buy | +139,408 | +16.4% | 990,217 | $13.57M | Q2 2026 | Aug 24, 2026 |
| California State Teachers Retirement System | Sell | -1,091 | -74.4% | 376 | $5.15K | Q2 2026 | Aug 24, 2026 |
| Westerly Capital Management, Llc | Sell | -369,070 | -38.2% | 595,930 | $8.16M | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Sell | -340,588 | -71.5% | 135,823 | $1.86M | Q2 2026 | Aug 14, 2026 |
| D. E. Shaw & Co., Inc. | Buy | +218,071 | +313.6% | 287,612 | $3.94M | Q2 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Sell | -206,794 | -66.0% | 106,381 | $1.46M | Q2 2026 | Aug 14, 2026 |
| Man Group Plc | Buy | +155,189 | +399.8% | 194,010 | $2.66M | Q2 2026 | Aug 14, 2026 |
| Trexquant Investment Lp | Buy | +122,418 | — | 122,418 | $1.68M | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Buy | +110,427 | +17.3% | 748,118 | $10.25M | Q2 2026 | Aug 14, 2026 |
| Aqr Capital Management Llc | Buy | +95,256 | +19.1% | 594,197 | $8.14M | Q2 2026 | Aug 14, 2026 |
| Harvey Partners, Llc | Sell | -89,977 | -9.9% | 815,023 | $11.17M | Q2 2026 | Aug 14, 2026 |
| Archon Capital Management Llc | Buy | +70,000 | — | 70,000 | $959.00K | Q2 2026 | Aug 14, 2026 |
| Ameriprise Financial Inc | Buy | +64,510 | — | 64,510 | $883.79K | Q2 2026 | Aug 14, 2026 |
| Exoduspoint Capital Management, Lp | Sell | -52,779 | -82.8% | 10,938 | $149.85K | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Buy | +42,986 | +15.8% | 315,376 | $4.32M | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | Buy | +42,761 | — | 42,761 | $585.83K | Q2 2026 | Aug 14, 2026 |
| Gendell Jeffrey L | Sell | -38,778 | -3.1% | 1,192,529 | $16.34M | Q2 2026 | Aug 14, 2026 |
| Point72 Asset Management, L.P. | Buy | +34,329 | +154.2% | 56,591 | $775.30K | Q2 2026 | Aug 14, 2026 |
| Schonfeld Strategic Advisors Llc | Buy | +28,024 | — | 28,024 | $383.93K | Q2 2026 | Aug 14, 2026 |
| Jacobs Levy Equity Management, Inc | Sell | -25,162 | -7.2% | 325,825 | $4.46M | Q2 2026 | Aug 14, 2026 |
| Magnetar Financial Llc | Buy | +20,108 | — | 20,108 | $275.48K | Q2 2026 | Aug 14, 2026 |
| Engineers Gate Manager Lp | Buy | +17,970 | — | 17,970 | $246.19K | Q2 2026 | Aug 14, 2026 |
| Balyasny Asset Management L.P. | Buy | +17,932 | — | 17,932 | $245.67K | Q2 2026 | Aug 14, 2026 |
| Royal Bank Of Canada | Buy | +17,429 | +17.3% | 118,126 | $1.62M | Q2 2026 | Aug 14, 2026 |
| Boothbay Fund Management, Llc | Buy | +16,841 | — | 16,841 | $230.72K | Q2 2026 | Aug 14, 2026 |
| Charles Schwab Investment Management Inc | Buy | +16,606 | +23.5% | 87,394 | $1.20M | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Buy | +15,429 | +36.5% | 57,652 | $789.83K | Q2 2026 | Aug 14, 2026 |
| Xtx Topco Ltd | Sell | -14,807 | -21.4% | 54,338 | $744.43K | Q2 2026 | Aug 14, 2026 |
| Wells Fargo & Company/Mn | Buy | +13,203 | +48.5% | 40,425 | $553.82K | Q2 2026 | Aug 14, 2026 |
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.
Related MTRX Institutional Insights
- MTRX Overview
- MTRX 13F Institutional Holders
- MTRX Top Institutional Shareholders
- Industrials Sector Institutional Ownership
- Industrials Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Industrials Stocks By Institutional Investors
- Most Sold Industrials Stocks By Institutional Investors
- MTRX Insider Trading & SEC Form 4 Activity
- MTRX Articles
- Top Institutional Investor Stock Rankings