MTRX Matrix Service Company
Matrix Service Company (MTRX) Institutional Ownership
What the institutions did with MTRX last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 2.1M | 8.2% |
| First Eagle Investment Management, LLC | 2.0M | 7.6% |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 1.4M | 5.5% |
| AMERICAN CENTURY COMPANIES INC | 1.2M | 4.7% |
| GENDELL JEFFREY L | 1.2M | 4.6% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.2M | 4.6% |
| ACADIAN ASSET MANAGEMENT LLC | 871.5K | 3.4% |
| Harvey Partners, LLC | 815.0K | 3.1% |
| TWO SIGMA INVESTMENTS, LP | 748.1K | 2.9% |
| GEODE CAPITAL MANAGEMENT, LLC | 721.3K | 2.8% |
| Azarias Capital Management, L.P. | 673.7K | 2.6% |
| DIMENSIONAL FUND ADVISORS LP | 665.3K | 2.6% |
| WESTERLY CAPITAL MANAGEMENT, LLC | 595.9K | 2.3% |
| AQR CAPITAL MANAGEMENT LLC | 594.2K | 2.3% |
| STATE STREET CORP | 581.0K | 2.2% |
| FIRST WILSHIRE SECURITIES MANAGEMENT INC | 517.1K | 2.0% |
| JPMORGAN CHASE & CO | 460.5K | 1.8% |
| Bank of New York Mellon Corp | 457.4K | 1.8% |
| MORGAN STANLEY | 437.0K | 1.7% |
| CITADEL ADVISORS LLC | 426.0K | 1.6% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 325.8K | 1.3% |
| GOLDMAN SACHS GROUP INC | 315.4K | 1.2% |
| PANAGORA ASSET MANAGEMENT INC | 299.4K | 1.2% |
| Connor, Clark & Lunn Investment Management Ltd. | 295.4K | 1.1% |
| D. E. Shaw & Co., Inc. | 287.6K | 1.1% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| First Eagle Investment Management, LLC | Increased | 850.8K | 2.0M | +1.1M |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 476.1K | 871.5K | +395.4K |
| WESTERLY CAPITAL MANAGEMENT, LLC | Reduced | 965.0K | 595.9K | -369.1K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 476.4K | 135.8K | -340.6K |
| Congruence Capital, LLC | Sold Out | 304.1K | 0 | -304.1K |
| CenterBook Partners LP | Reduced | 431.4K | 154.1K | -277.4K |
| AMERICAN CENTURY COMPANIES INC | Increased | 981.6K | 1.2M | +225.2K |
| D. E. Shaw & Co., Inc. | Increased | 69.5K | 287.6K | +218.1K |
| JANE STREET GROUP, LLC | Reduced | 313.2K | 106.4K | -206.8K |
| Allspring Global Investments Holdings, LLC | Increased | 81.9K | 283.5K | +201.6K |
| JPMORGAN CHASE & CO | Increased | 275.3K | 460.5K | +185.2K |
| Man Group plc | Increased | 38.8K | 194.0K | +155.2K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Sold Out | 143.8K | 0 | -143.8K |
| Azarias Capital Management, L.P. | Reduced | 817.0K | 673.7K | -143.3K |
| PANAGORA ASSET MANAGEMENT INC | Increased | 156.3K | 299.4K | +143.2K |
| MORGAN STANLEY | Increased | 302.7K | 437.0K | +134.3K |
| BlackRock, Inc. | Increased | 2.0M | 2.1M | +125.2K |
| Trexquant Investment LP | New | 0 | 122.4K | +122.4K |
| COUNTRY TRUST BANK | Reduced | 165.2K | 45.2K | -120.0K |
| TWO SIGMA INVESTMENTS, LP | Increased | 637.7K | 748.1K | +110.4K |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 171.6K | 279.2K | +107.6K |
| HRT FINANCIAL LP | Sold Out | 96.3K | 0 | -96.3K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 498.9K | 594.2K | +95.3K |
| Russell Investments Group, Ltd. | Reduced | 356.8K | 266.5K | -90.3K |
| MARSHALL WACE, LLP | Reduced | 313.3K | 223.3K | -90.0K |
| Harvey Partners, LLC | Reduced | 905.0K | 815.0K | -90.0K |
| Walleye Capital LLC | Increased | 24.1K | 96.2K | +72.1K |
| Archon Capital Management LLC | New | 0 | 70.0K | +70.0K |
| Connor, Clark & Lunn Investment Management Ltd. | Reduced | 363.1K | 295.4K | -67.7K |
| ExodusPoint Capital Management, LP | Reduced | 63.7K | 10.9K | -52.8K |
| ALGERT GLOBAL LLC | Increased | 192.5K | 244.6K | +52.1K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 188.2K | 235.8K | +47.6K |
| VICTORY CAPITAL MANAGEMENT INC | Reduced | 121.0K | 73.4K | -47.6K |
| CITADEL ADVISORS LLC | Reduced | 472.0K | 426.0K | -46.0K |
| GOLDMAN SACHS GROUP INC | Increased | 272.4K | 315.4K | +43.0K |
| GENDELL JEFFREY L | Reduced | 1.2M | 1.2M | -38.8K |
| Y-Intercept (Hong Kong) Ltd | New | 0 | 36.5K | +36.5K |
| Quantbot Technologies LP | Sold Out | 36.0K | 0 | -36.0K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 685.4K | 721.3K | +35.9K |
| OCCUDO QUANTITATIVE STRATEGIES LP | Increased | 16.2K | 52.0K | +35.8K |
| STATE STREET CORP | Increased | 545.5K | 581.0K | +35.5K |
| Point72 Asset Management, L.P. | Increased | 22.3K | 56.6K | +34.3K |
| VERUS CAPITAL PARTNERS, LLC | Increased | 20.9K | 52.2K | +31.3K |
| Hillsdale Investment Management Inc. | New | 0 | 28.9K | +28.9K |
| Schonfeld Strategic Advisors LLC | New | 0 | 28.0K | +28.0K |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 255.8K | 282.6K | +26.8K |
| Assenagon Asset Management S.A. | Increased | 26.6K | 53.2K | +26.6K |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Reduced | 351.0K | 325.8K | -25.2K |
| BAILARD, INC. | Sold Out | 24.7K | 0 | -24.7K |
| CITIGROUP INC | Increased | 16.1K | 40.6K | +24.5K |
| UBS Group AG | Increased | 29.4K | 53.0K | +23.6K |
| Aquatic Capital Management LLC | Sold Out | 23.0K | 0 | -23.0K |
| Quadrature Capital Ltd | Sold Out | 20.7K | 0 | -20.7K |
| Magnetar Financial LLC | New | 0 | 20.1K | +20.1K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Increased | 11.5K | 31.2K | +19.7K |
| PARK AVENUE SECURITIES LLC | New | 0 | 18.1K | +18.1K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Sold Out | 18.1K | 0 | -18.1K |
| Engineers Gate Manager LP | New | 0 | 18.0K | +18.0K |
| Balyasny Asset Management L.P. | New | 0 | 17.9K | +17.9K |
| ROYAL BANK OF CANADA | Increased | 100.7K | 118.1K | +17.4K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.