MTRX · Matrix Service Co · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 150 13F filersWho Holds MTRX
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 150 filers, like-for-like change +2.2%; actively managed books +0.8%; index-like books +6.5%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 50.7% | 79 | -5.1% |
| Exempt adviser | 2.1% | 4 | -8.7% |
| Adviser | 3.1% | 3 | -16.6% |
| Bank | 8.4% | 12 | +17.8% |
| Benefit plan | 0.3% | 3 | -6.1% |
| Non-US | 2.9% | 5 | +26.2% |
| Holding company | 12.8% | 6 | +18.7% |
| Insurer | 0.0% | 0 | — |
| Broker-dealer | 0.0% | 0 | — |
| Unknown | 19.7% | 38 | +10.9% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 26.2% | 19 | +6.5% |
| Systematic-like | 10.9% | 21 | -3.2% |
| Concentrated | 8.2% | 17 | -16.7% |
| Diversified active | 54.7% | 93 | +5.0% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 46.3% | 69 | +5.5% |
| Medium turnover | 30.3% | 35 | +14.7% |
| High turnover | 16.2% | 36 | -16.0% |
| Unknown | 7.2% | 10 | -13.4% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 8.6% | 20 | -13.3% |
| Medium horizon | 17.8% | 21 | -7.4% |
| Long horizon | 63.0% | 95 | +7.3% |
| Unknown | 10.5% | 14 | +7.0% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 9.2% | 21 | -25.5% |
| $1B to $10B | 15.2% | 39 | -7.3% |
| $10B to $100B | 23.0% | 41 | +23.9% |
| $100B or more | 52.6% | 49 | +4.2% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 3.2% | 21 | +3.6% |
| Pooled investment vehicles | 12.8% | 25 | -20.3% |
| Registered funds and BDCs | 22.4% | 13 | +3.5% |
| Pension and profit sharing plans | 3.3% | 2 | -9.9% |
| Insurance companies | 0.2% | 3 | +10.8% |
| Governments and sovereign funds | 2.9% | 5 | +74.4% |
| Other investment advisers | 0.0% | 1 | -99.9% |
| Diversified | 5.9% | 9 | +0.3% |
| Corporations | 0.0% | 0 | — |
| Unknown | 49.3% | 71 | +11.1% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 32.6% | 38 | -11.5% |
| Private equity funds | 0.5% | 5 | -17.8% |
| Venture capital funds | 0.0% | 1 | +46.2% |
| Real estate funds | 0.0% | 2 | +5.8% |
| Securitized asset funds | 0.0% | 1 | 0.0% |
| Other private funds | 8.5% | 8 | +13.6% |
| Mixed private funds | 0.7% | 2 | -0.7% |
| Private funds, type not stated | 0.1% | 1 | -32.3% |
| No private funds | 10.4% | 25 | +4.6% |
| Unknown | 47.2% | 67 | +12.2% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 91.8% | 126 | +2.0% |
| Outside the US | 8.2% | 24 | +5.2% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 1 holder with no observed 2026-03-31 13F and 2 holders with no observed 2026-06-30 13F.
Conviction and Crowding
150 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 57.9% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies MTRX's active holders also own, quarter ended Jun 30, 2026Shareholder Targets
13F filers that own its peers but not MTRX, quarter ended Jun 30, 2026Found through its holder-overlap peers: ORN, CALX, CECO, J, APH, GLW, ABT, CSCO, GEV, AAPL, CVX, XOM, JNJ, BRK-B, NVDA, AMZN, MSFT, GOOGL. 7,171 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | Capital Research Global Investors Adviser, Diversified active | $191,764,845,232 14 held | NVDA, GOOGL, MSFT |
| 2 | Capital World Investors Adviser, Diversified active | $129,900,590,423 13 held | GOOGL, NVDA, MSFT |
| 3 | Berkshire Hathaway Inc Insurer, Concentrated | $117,700,527,192 3 held | AAPL, GOOGL, CVX |
| 4 | Amundi Holding company, Index-like | $116,428,348,016 17 held | NVDA, AAPL, GOOGL |
| 5 | WELLINGTON MANAGEMENT GROUP LLP Holding company, Diversified active | $114,280,300,259 16 held | NVDA, GOOGL, MSFT |
| 6 | FRANKLIN RESOURCES INC Adviser, Diversified active | $108,634,327,382 18 held | AAPL, NVDA, MSFT |
| 7 | Capital International Investors Adviser, Diversified active | $102,330,010,066 13 held | GOOGL, MSFT, NVDA |
| 8 | Fisher Asset Management, LLC Adviser, Diversified active | $86,637,535,182 14 held | NVDA, AAPL, GOOGL |
| 9 | HSBC HOLDINGS PLC Unknown, Index-like | $64,014,353,360 17 held | NVDA, GOOGL, AAPL |
| 10 | Swiss National Bank Unknown, Index-like | $58,590,703,642 16 held | NVDA, AAPL, GOOGL |
Fund Ownership of MTRX by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 12.52% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 3.34% | 946,336 |
| Index ETFs | 9.17% | 2,594,682 |
| Active ETFs | 0.72% | 204,467 |
| Active funds | 14.20% | 4,016,862 |
| Unclassified | 3.99% | 1,127,785 |
| All registered funds | 31.42% | 8,890,132 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega BlackRock, Inc. Holding company | $29,310,543 | 8.68% | 2,139,456 | Shares | 2026-08-07 | |
| Mid NEEDHAM INVESTMENT MANAGEMENT LLC Registered adviser | $19,659,500 | 5.82% | 1,435,000 | Shares | 2026-08-14 | |
| Mega AMERICAN CENTURY COMPANIES INC | $16,533,461 | 4.90% | 1,206,822 | Shares | 2026-08-12 | |
| Large GENDELL JEFFREY L | $16,337,647 | 4.84% | 1,192,529 | Shares | 2026-08-14 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $16,280,984 | 4.82% | 1,188,393 | Shares | 2026-08-13 | |
| Large First Eagle Investment Management, LLC Registered adviser | $13,565,972 | 4.02% | 990,217 | Shares | 2026-08-24 | |
| Large ACADIAN ASSET MANAGEMENT LLC | $11,939,563 | 3.54% | 871,501 | Shares | 2026-08-13 | |
| Mid Harvey Partners, LLC Registered adviser | $11,165,815 | 3.31% | 815,023 | Shares | 2026-08-14 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $10,249,216 | 3.04% | 748,118 | Shares | 2026-08-14 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $9,882,111 | 2.93% | 721,322 | Shares | 2026-08-12 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $9,114,143 | 2.70% | 665,266 | Shares | 2026-08-11 | |
| Small WESTERLY CAPITAL MANAGEMENT, LLC Registered adviser | $8,164,241 | 2.42% | 595,930 | Shares | 2026-08-14 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $8,140,494 | 2.41% | 594,197 | Shares | 2026-08-14 | |
| Mega STATE STREET CORP Bank | $7,959,782 | 2.36% | 581,006 | Shares | 2026-09-22 | |
| Small FIRST WILSHIRE SECURITIES MANAGEMENT INC Registered adviser | $7,084,557 | 2.10% | 517,121 | Shares | 2026-08-14 | |
| Mega JPMORGAN CHASE & CO Bank | $6,308,380 | 1.87% | 460,466 | Shares | 2026-08-12 | |
| Mega Bank of New York Mellon Corp Bank | $6,265,897 | 1.86% | 457,365 | Shares | 2026-08-06 | |
| Mega MORGAN STANLEY Holding company | $5,987,157 | 1.77% | 437,019 | Shares | 2026-08-13 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $5,836,514 | 1.73% | 426,023 | Shares | 2026-09-02 | |
| Large JACOBS LEVY EQUITY MANAGEMENT, INC Registered adviser | $4,463,802 | 1.32% | 325,825 | Shares | 2026-08-14 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $4,320,650 | 1.28% | 315,376 | Shares | 2026-08-14 | |
| Large PANAGORA ASSET MANAGEMENT INC Registered adviser | $4,102,204 | 1.22% | 299,431 | Shares | 2026-08-06 | |
| Small Azarias Capital Management, L.P. Adviser | $4,074,551 | 1.21% | 425,763 | Shares | 2026-10-14 | |
| Large Connor, Clark & Lunn Investment Management Ltd. Registered adviser | $4,047,281 | 1.20% | 295,422 | Shares | 2026-08-13 | |
| Mega D. E. Shaw & Co., Inc. | $3,940,284 | 1.17% | 287,612 | Shares | 2026-08-14 | |
| Large Allspring Global Investments Holdings, LLC Holding company | $3,884,127 | 1.15% | 283,513 | Shares | 2026-08-13 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $3,871,058 | 1.15% | 282,559 | Shares | 2026-08-13 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $3,824,971 | 1.13% | 279,195 | Shares | 2026-08-13 | |
| Mega Russell Investments Group, Ltd. | $3,650,854 | 1.08% | 266,486 | Shares | 2026-08-06 | |
| Small De Lisle Partners LLP Non-US | $3,545,423 | 1.05% | 258,790 | Shares | 2026-08-12 | |
| Mega NORTHERN TRUST CORP Bank | $3,488,976 | 1.03% | 254,670 | Shares | 2026-08-13 | |
| Mid ALGERT GLOBAL LLC Registered adviser | $3,350,814 | 0.99% | 244,585 | Shares | 2026-08-13 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $3,230,144 | 0.96% | 235,777 | Shares | 2026-08-13 | |
| Mega Qube Research & Technologies Ltd Exempt adviser | $3,094,405 | 0.92% | 225,869 | Shares | 2026-08-14 | |
| Mega MARSHALL WACE, LLP Exempt adviser | $3,059,347 | 0.91% | 223,310 | Shares | 2026-08-13 | |
| Large Man Group plc | $2,657,937 | 0.79% | 194,010 | Shares | 2026-08-14 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $2,598,054 | 0.77% | 189,639 | Shares | 2026-08-13 | |
| Mid GSA CAPITAL PARTNERS LLP Registered adviser | $2,497,194 | 0.74% | 182,277 | Shares | 2026-08-06 | |
| Mid CenterBook Partners LP Registered adviser | $2,110,594 | 0.63% | 154,058 | Shares | 2026-08-11 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $1,860,775 | 0.55% | 135,823 | Shares | 2026-08-14 | |
| Mega NORGES BANK Non-US | $1,733,050 | 0.51% | 126,500 | Shares | 2026-08-12 | |
| Large Trexquant Investment LP Registered adviser | $1,677,126 | 0.50% | 122,418 | Shares | 2026-08-14 | |
| Mega ROYAL BANK OF CANADA Bank | $1,618,325 | 0.48% | 118,126 | Shares | 2026-08-14 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $1,593,036 | 0.47% | 116,280 | Shares | 2026-08-14 | |
| Mid Prescott Group Capital Management, L.L.C. Registered adviser | $1,567,170 | 0.46% | 114,392 | Shares | 2026-08-07 | |
| Mid Y-Intercept (Hong Kong) Ltd Exempt adviser | $1,548,100 | 0.46% | 161,766 | Shares | 2026-10-16 | |
| Mega JANE STREET GROUP, LLC | $1,457,419 | 0.43% | 106,381 | Shares | 2026-08-14 | |
| Mid MONEY CONCEPTS CAPITAL CORP Registered adviser | $1,421,005 | 0.42% | 103,723 | Shares | 2026-08-04 | |
| Mid CARY STREET PARTNERS FINANCIAL LLC | $1,322,187 | 0.39% | 96,510 | Shares | 2026-07-17 | |
| Large Walleye Capital LLC Registered adviser | $1,318,515 | 0.39% | 96,242 | Shares | 2026-08-03 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $1,197,297 | 0.35% | 87,394 | Shares | 2026-08-14 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $1,033,815 | 0.31% | 75,461 | Shares | 2026-08-14 | |
| Large Jump Financial, LLC | $1,020,923 | 0.30% | 74,520 | Shares | 2026-08-13 | |
| Mega VICTORY CAPITAL MANAGEMENT INC Registered adviser | $1,005,580 | 0.30% | 73,400 | Shares | 2026-08-07 | |
| Small Archon Capital Management LLC Registered adviser | $959,000 | 0.28% | 70,000 | Shares | 2026-08-14 | |
| Mega AMERIPRISE FINANCIAL INC Adviser | $883,787 | 0.26% | 64,510 | Shares | 2026-08-14 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $789,832 | 0.23% | 57,652 | Shares | 2026-08-14 | |
| Large Point72 Asset Management, L.P. Registered adviser | $775,296 | 0.23% | 56,591 | Shares | 2026-08-14 | |
| Mid WINTON GROUP Ltd | $768,857 | 0.23% | 56,121 | Shares | 2026-08-07 | |
| Mega Nuveen, LLC | $744,978 | 0.22% | 54,378 | Shares | 2026-08-11 | |
| Mid XTX Topco Ltd | $744,430 | 0.22% | 54,338 | Shares | 2026-08-14 | |
| Small Pacific Ridge Capital Partners, LLC Registered adviser | $736,772 | 0.22% | 53,779 | Shares | 2026-08-12 | |
| Mid MARTINGALE ASSET MANAGEMENT L P Registered adviser | $735,717 | 0.22% | 53,702 | Shares | 2026-08-13 | |
| Mega UBS Group AG Bank | $726,633 | 0.22% | 53,039 | Shares | 2026-08-13 | |
| Mid VERUS CAPITAL PARTNERS, LLC Registered adviser | $714,797 | 0.21% | 52,175 | Shares | 2026-08-06 | |
| Mid OCCUDO QUANTITATIVE STRATEGIES LP Registered adviser | $712,071 | 0.21% | 51,976 | Shares | 2026-08-13 | |
| Large Squarepoint Ops LLC Registered adviser | $702,768 | 0.21% | 51,297 | Shares | 2026-08-14 | |
| Large STRS OHIO Benefit plan | $680,890 | 0.20% | 49,700 | Shares | 2026-07-30 | |
| Mid Financial Plan, Inc. Registered adviser | $652,325 | 0.19% | 47,615 | Shares | 2026-08-14 | |
| Mid COUNTRY TRUST BANK | $619,746 | 0.18% | 45,237 | Shares | 2026-07-15 | |
| Small EntryPoint Capital, LLC Registered adviser | $603,293 | 0.18% | 44,036 | Shares | 2026-08-13 | |
| Mega Invesco Ltd. Adviser | $585,825 | 0.17% | 42,761 | Shares | 2026-08-14 | |
| Mega CITIGROUP INC Bank | $556,041 | 0.16% | 40,587 | Shares | 2026-08-03 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $553,822 | 0.16% | 40,425 | Shares | 2026-08-14 | |
| Mega VOYA INVESTMENT MANAGEMENT LLC Registered adviser | $549,561 | 0.16% | 40,114 | Shares | 2026-08-12 | |
| Mega Boston Partners Registered adviser | $534,217 | 0.16% | 38,994 | Shares | 2026-08-04 | |
| Large PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO Benefit plan | $494,693 | 0.15% | 36,109 | Shares | 2026-08-17 | |
| Small Dynamic Technology Lab Private Ltd | $479,184 | 0.14% | 34,977 | Shares | 2026-08-13 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $468,375 | 0.14% | 34,188 | Shares | 2026-08-12 | |
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC Registered adviser | $465,800 | 0.14% | 34,000 | Shares | 2026-08-14 | |
| Large LOS ANGELES CAPITAL MANAGEMENT LLC Registered adviser | $427,015 | 0.13% | 31,169 | Shares | 2026-08-13 | |
| Mid SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC | $402,108 | 0.12% | 29,351 | Shares | 2026-08-14 | |
| Mega DEUTSCHE BANK AG\ Non-US | $401,012 | 0.12% | 29,271 | Shares | 2026-08-07 | |
| Large Brevan Howard Capital Management LP Exempt adviser | $397,094 | 0.12% | 28,985 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $395,930 | 0.12% | 28,900 | Call | 2026-09-02 | |
| Mid Hillsdale Investment Management Inc. Registered adviser | $395,930 | 0.12% | 28,900 | Shares | 2026-08-12 | |
| Large Schonfeld Strategic Advisors LLC Registered adviser | $383,928 | 0.11% | 28,024 | Shares | 2026-08-14 | |
| Mega Creative Planning Registered adviser | $378,284 | 0.11% | 27,612 | Shares | 2026-08-13 | |
| Mega BARCLAYS PLC Bank | $297,344 | 0.09% | 21,704 | Shares | 2026-08-14 | |
| Mega CANADA PENSION PLAN INVESTMENT BOARD Non-US | $287,700 | 0.09% | 21,000 | Shares | 2026-08-14 | |
| Large IEQ CAPITAL, LLC Registered adviser | $281,932 | 0.08% | 20,579 | Shares | 2026-08-11 | |
| Large OSAIC HOLDINGS, INC. Holding company | $281,274 | 0.08% | 20,531 | Shares | 2026-08-14 | |
| Mid SATURNA CAPITAL CORP Registered adviser | $277,767 | 0.08% | 20,275 | Shares | 2026-08-14 | |
| Small Bridge City Capital, LLC Registered adviser | $277,055 | 0.08% | 20,223 | Shares | 2026-08-11 | |
| Mid Magnetar Financial LLC Registered adviser | $275,478 | 0.08% | 20,108 | Shares | 2026-08-14 | |
| Large PARK AVENUE SECURITIES LLC | $248,339 | 0.07% | 18,127 | Shares | 2026-07-20 | |
| Mid Engineers Gate Manager LP | $246,189 | 0.07% | 17,970 | Shares | 2026-08-14 | |
| Large Balyasny Asset Management L.P. Registered adviser | $245,668 | 0.07% | 17,932 | Shares | 2026-08-14 | |
| Large Assenagon Asset Management S.A. | $245,183 | 0.07% | 25,620 | Shares | 2026-10-15 | |
| Large Mariner, LLC Registered adviser | $238,654 | 0.07% | 17,420 | Shares | 2026-08-13 |
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