MATRIX SVC CO MTRX
COM · Common Stock · CUSIP 576853105
- SectorIndustrials
- IndustryConstruction - Special Trade Contractors
- HeadquartersTulsa, OK
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($234.1k this quarter). Holder counts are more reliable. Shares outstanding: 28.1m as of 2026-05-06, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $13.69. Options: 4 managers hold calls ($704.2k notional), 1 hold puts ($34.2k).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 76 |
| Q4 2022 | 87 |
| Q1 2023 | 91 |
| Q2 2023 | 82 |
| Q3 2023 | 88 |
| Q4 2023 | 104 |
| Q1 2024 | 111 |
| Q2 2024 | 113 |
| Q3 2024 | 118 |
| Q4 2024 | 124 |
| Q1 2025 | 123 |
| Q2 2025 | 126 |
| Q3 2025 | 143 |
| Q4 2025 | 144 |
| Q1 2026 | 144 |
| Q2 2026 | 150 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 69 | 42 |
| Q4 2024 | 55 | 57 |
| Q1 2025 | 62 | 59 |
| Q2 2025 | 64 | 58 |
| Q3 2025 | 83 | 52 |
| Q4 2025 | 74 | 66 |
| Q1 2026 | 80 | 64 |
| Q2 2026 | 89 | 56 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $1.1m | $460.9k | 0.42 |
| Q4 2025 | $697.3k | $234.0k | 0.34 |
| Q1 2026 | $329.5k | $0 | 0.00 |
| Q2 2026 | $704.2k | $34.2k | 0.05 |
Biggest buyers
| First Eagle Investment Management, LLC | Added | +1.1m |
| ACADIAN ASSET MANAGEMENT LLC | Added | +395.4k |
| AMERICAN CENTURY COMPANIES INC | Added | +225.2k |
| D. E. Shaw & Co., Inc. | Added | +218.1k |
| Allspring Global Investments Holdings, LLC | Added | +201.6k |
| JPMORGAN CHASE & CO | Added | +185.2k |
| Man Group plc | Added | +155.2k |
| PANAGORA ASSET MANAGEMENT INC | Added | +143.2k |
| MORGAN STANLEY | Added | +134.3k |
| BlackRock, Inc. | Added | +125.2k |
Biggest sellers
| WESTERLY CAPITAL MANAGEMENT, LLC | Reduced | -369.1k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -340.6k |
| CONGRUENCE CAPITAL, LLC | Sold out | -304.1k |
| CenterBook Partners LP | Reduced | -277.4k |
| JANE STREET GROUP, LLC | Reduced | -206.8k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Sold out | -143.8k |
| Azarias Capital Management, L.P. | Reduced | -143.3k |
| COUNTRY TRUST BANK | Reduced | -120.0k |
| HRT FINANCIAL LP | Sold out | -96.3k |
| Russell Investments Group, Ltd. | Reduced | -90.3k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $395.9k28.9k shares |
| JANE STREET GROUP, LLC | New | $164.4k12.0k shares |
| GROUP ONE TRADING LLC | Added | $141.1k10.3k shares |
| SIMPLEX TRADING, LLC | Reduced | $2.7k200 shares |
Biggest puts
| GROUP ONE TRADING LLC | New | $34.2k2.5k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution -5.6 pts · filed 2026-04-07 | 6.8% |
| NEEDHAM INVESTMENT MANAGEMENT LLC 13G · passive investor new · filed 2025-02-13 | 5.2% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 1 | $29.3k | 0 | — | — |
| Q4 2025 | 0 | — | 1 | $198.0k | — |
| Q1 2026 | 0 | — | 1 | $47.3k | — |
| Q2 2026 | 0 | — | 3 | $2.3m | $1.6m |
| Q3 2026 | 0 | — | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-06-15 | Cavanah Kevin S VP Finance & CFO | Sold plan | $19.9k1.4k shares |
| 2026-06-12 | SHEETS JUSTIN D SVP, Enterprise Services | Sold | $229.4k17.0k shares |
| 2026-06-12 | Cavanah Kevin S VP Finance & CFO | Sold plan | $29.0k2.1k shares |
| 2026-06-05 | Cavanah Kevin S VP Finance & CFO | Sold plan | $92.0k6.5k shares |
| 2026-06-04 | Cavanah Kevin S VP Finance & CFO | Sold plan | $705.0k50.0k shares |
| 2026-05-26 | Cavanah Kevin S VP Finance & CFO | Sold plan | $774.0k60.0k shares |
| 2026-05-08 | HEWITT JOHN R President & CEO, director | Sold | $450.0k36.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 2.1m $29.3m | Added +125.2k |
| First Eagle Investment Management, LLC 0.02% of their portfolio | 2.0m $27.1m | Added +1.1m |
| NEEDHAM INVESTMENT MANAGEMENT LLC 0.59% of their portfolio | 1.4m $19.7m | Unchanged |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 1.2m $16.5m | Added +225.2k |
| GENDELL JEFFREY L 0.15% of their portfolio | 1.2m $16.3m | Reduced -38.8k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 1.2m $16.3m | Reduced -8.4k |
| ACADIAN ASSET MANAGEMENT LLC 0.01% of their portfolio | 871.5k $11.9m | Added +395.4k |
| Harvey Partners, LLC 0.77% of their portfolio | 815.0k $11.2m | Reduced -90.0k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 748.1k $10.2m | Added +110.4k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 721.3k $9.9m | Added +35.9k |
| Azarias Capital Management, L.P. 4.02% of their portfolio | 673.7k $9.2m | Reduced -143.3k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 665.3k $9.1m | Added +1.3k |
| WESTERLY CAPITAL MANAGEMENT, LLC 2.00% of their portfolio | 595.9k $8.2m | Reduced -369.1k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 594.2k $8.1m | Added +95.3k |
| STATE STREET CORP 0.00% of their portfolio | 581.0k $8.0m | Added +35.5k |
| FIRST WILSHIRE SECURITIES MANAGEMENT INC 1.46% of their portfolio | 517.1k $7.1m | Reduced -5.7k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 460.5k $6.3m | Added +185.2k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 457.4k $6.3m | Reduced -9.5k |
| MORGAN STANLEY 0.00% of their portfolio | 437.0k $6.0m | Added +134.3k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 426.0k $5.8m | Reduced -46.0k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.02% of their portfolio | 325.8k $4.5m | Reduced -25.2k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 315.4k $4.3m | Added +43.0k |
| PANAGORA ASSET MANAGEMENT INC 0.01% of their portfolio | 299.4k $4.1m | Added +143.2k |
| Connor, Clark & Lunn Investment Management Ltd. 0.01% of their portfolio | 295.4k $4.0m | Reduced -67.7k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 287.6k $3.9m | Added +218.1k |
| Allspring Global Investments Holdings, LLC 0.01% of their portfolio | 283.5k $3.8m | Added +201.6k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 282.6k $3.9m | Added +26.8k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 279.2k $3.8m | Added +107.6k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 266.5k $3.7m | Reduced -90.3k |
| De Lisle Partners LLP 0.39% of their portfolio | 258.8k $3.5m | Unchanged |
| NORTHERN TRUST CORP 0.00% of their portfolio | 254.7k $3.5m | Added +14.1k |
| ALGERT GLOBAL LLC 0.04% of their portfolio | 244.6k $3.4m | Added +52.1k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 235.8k $3.2m | Added +47.6k |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 225.9k $3.1m | Added +5.3k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 223.3k $3.1m | Reduced -90.0k |
| Man Group plc 0.00% of their portfolio | 194.0k $2.7m | Added +155.2k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 189.6k $2.6m | Added +8.3k |
| GSA CAPITAL PARTNERS LLP 0.16% of their portfolio | 182.3k $2.5m | Reduced -3.3k |
| CenterBook Partners LP 0.10% of their portfolio | 154.1k $2.1m | Reduced -277.4k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 135.8k $1.9m | Reduced -340.6k |
| NORGES BANK 0.00% of their portfolio | 126.5k $1.7m | Not comparable |
| Trexquant Investment LP 0.01% of their portfolio | 122.4k $1.7m | New |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 118.1k $1.6m | Added +17.4k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 116.3k $1.3m | Added +2.5k |
| Prescott Group Capital Management, L.L.C. 0.14% of their portfolio | 114.4k $1.6m | Reduced -9.0k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 106.4k $1.5m | Reduced -206.8k |
| MONEY CONCEPTS CAPITAL CORP 0.07% of their portfolio | 103.7k $1.4m | Reduced -526 |
| CARY STREET PARTNERS FINANCIAL LLC 0.03% of their portfolio | 96.5k $1.3m | Added +2.5k |
| Walleye Capital LLC 0.01% of their portfolio | 96.2k $1.3m | Added +72.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 87.4k $1.2m | Added +16.6k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 75.5k $1.0m | Added +12.3k |
| Jump Financial, LLC 0.01% of their portfolio | 74.5k $1.0m | Reduced -4.1k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 73.4k $1.0m | Reduced -47.6k |
| Archon Capital Management LLC 0.39% of their portfolio | 70.0k $959.0k | New |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 64.5k $883.8k | Reduced -2.7k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 57.7k $789.8k | Added +15.4k |
| Point72 Asset Management, L.P. 0.00% of their portfolio | 56.6k $775.3k | Added +34.3k |
| WINTON GROUP Ltd 0.02% of their portfolio | 56.1k $768.9k | Added +13.1k |
| Nuveen, LLC 0.00% of their portfolio | 54.4k $745.0k | Added +12.9k |
| XTX Topco Ltd 0.01% of their portfolio | 54.3k $744.4k | Reduced -14.8k |
| Pacific Ridge Capital Partners, LLC 0.13% of their portfolio | 53.8k $736.8k | Reduced -623 |
| MARTINGALE ASSET MANAGEMENT L P 0.02% of their portfolio | 53.7k $735.7k | Reduced -3.8k |
| Assenagon Asset Management S.A. 0.00% of their portfolio | 53.2k $729.3k | Added +26.6k |
| UBS Group AG 0.00% of their portfolio | 53.0k $726.6k | Added +23.6k |
| VERUS CAPITAL PARTNERS, LLC 0.04% of their portfolio | 52.2k $714.8k | Added +31.3k |
| OCCUDO QUANTITATIVE STRATEGIES LP 0.04% of their portfolio | 52.0k $712.1k | Added +35.8k |
| Squarepoint Ops LLC 0.00% of their portfolio | 51.3k $702.8k | Reduced -1.5k |
| STRS OHIO 0.00% of their portfolio | 49.7k $680.9k | Reduced -4.5k |
| Financial Plan, Inc. 0.06% of their portfolio | 47.6k $652.3k | Unchanged |
| COUNTRY TRUST BANK 0.01% of their portfolio | 45.2k $619.7k | Reduced -120.0k |
| EntryPoint Capital, LLC 0.15% of their portfolio | 44.0k $603.3k | Added +5.2k |
| Invesco Ltd. 0.00% of their portfolio | 42.8k $585.8k | Reduced -9.0k |
| CITIGROUP INC 0.00% of their portfolio | 40.6k $556.0k | Added +24.5k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 40.4k $553.8k | Added +13.2k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 40.1k $549.6k | Added +1.4k |
| Boston Partners 0.00% of their portfolio | 39.0k $534.2k | Reduced -13.7k |
| Y-Intercept (Hong Kong) Ltd 0.01% of their portfolio | 36.5k $500.5k | New |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio | 36.1k $494.7k | Unchanged |
| Dynamic Technology Lab Private Ltd 0.11% of their portfolio | 35.0k $479.0k | Added +1.4k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 34.2k $468.4k | Added +580 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 34.0k $465.8k | Unchanged |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 31.2k $427.0k | Added +19.7k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.01% of their portfolio | 29.4k $402.1k | Added +3.8k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 29.3k $401.0k | Added +4.9k |
| Brevan Howard Capital Management LP 0.01% of their portfolio | 29.0k $397.1k | Reduced -1.1k |
| Hillsdale Investment Management Inc. 0.01% of their portfolio | 28.9k $395.9k | New |
| Schonfeld Strategic Advisors LLC 0.00% of their portfolio | 28.0k $383.9k | New |
| Creative Planning 0.00% of their portfolio | 27.6k $378.3k | Added +7.3k |
| BARCLAYS PLC 0.00% of their portfolio | 21.7k $297.3k | Reduced -4.5k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.00% of their portfolio | 21.0k $287.7k | Added +9.7k |
| IEQ CAPITAL, LLC 0.00% of their portfolio | 20.6k $281.9k | Added +1.1k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 20.5k $281.2k | Reduced -4 |
| SATURNA CAPITAL CORP 0.00% of their portfolio | 20.3k $277.8k | Added +2.7k |
| Bridge City Capital, LLC 0.06% of their portfolio | 20.2k $277.1k | Reduced -10.8k |
| Magnetar Financial LLC 0.00% of their portfolio | 20.1k $275.5k | New |
| PARK AVENUE SECURITIES LLC 0.00% of their portfolio | 18.1k $248.0k | New |
| Engineers Gate Manager LP 0.00% of their portfolio | 18.0k $246.2k | New |
| Balyasny Asset Management L.P. 0.00% of their portfolio | 17.9k $245.7k | New |
| Mariner, LLC 0.00% of their portfolio | 17.4k $238.7k | Added +7.0k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.00% of their portfolio | 16.8k $230.7k | New |