Quick Takeaways
- MTRX - MATRIX SERVICE CO has 18 insiders with reported activity on this page.
- Net insider value flow over the last year: -$216,020.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 18 Insiders of MATRIX SERVICE CO
- Symbol
- MTRX on Nasdaq
- Location
- Tulsa, OK
What Changed
- Buy value: $29,313; sell value: $245,332.
- Net share flow: -18,393.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$216,020.
Buys
$29,313
Shares: 2,300
Insiders: 1
Sells
$245,333
Shares: 20,693
Insiders: 2
Net
-$216,020
Shares: -18,393
Insiders: -1
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 4,193 | $0 | $47,345 | -$47,345 |
| 3-6 | 0 | 16,500 | $0 | $197,987 | -$197,987 |
| 6-9 | 2,300 | 0 | $29,313 | $0 | +$29,313 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
MATRIX SERVICE CO executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| John R. Hewitt | President & CEO, Director | $9,567,284 | Mixed | 29 Aug 2025 | ||
| Kevin S. Cavanah | VP Finance & CFO | $3,224,633 | Mixed | 29 Aug 2025 | ||
| Alan R. Updyke | Chief Operating Officer | $1,436,172 | Mixed | 29 Aug 2024 | ||
| Justin D. Sheets | VP, Legal & Ops Services | $1,281,816 | Mixed | 29 Aug 2025 | ||
| Nancy E. Austin | VP, Chief Admin Officer | $1,249,781 | -$47,345 | -3.6% | Mixed | 18 Feb 2026 |
| Shawn P. Payne | President, Eng & Constr | $1,223,101 | -$197,987 | -14% | Mixed | 25 Nov 2025 |
| James H. Miller | Director | $1,204,407 | Mixed | 04 Nov 2025 | ||
| John D. Chandler | Director | $1,125,415 | +$29,313 | +2.7% | Mixed | 04 Nov 2025 |
| Douglas J. Montalbano | President, Matrix NAC | $980,855 | Mixed | 29 Aug 2025 | ||
| Martha Z. Carnes | Director | $931,094 | Mixed | 04 Nov 2025 | ||
| Bradley J. Rinehart | President, Matrix Service | $891,496 | Mixed | 30 Aug 2022 | ||
| Liane K. Hinrichs | Director | $840,906 | Mixed | 04 Nov 2025 | ||
| Kevin A. Durkin | VP Chief Bus Dev/Strat Officer | $817,108 | Mixed | 29 Aug 2024 | ||
| Jim W. Mogg | Director | $731,450 | Mixed | 05 Dec 2022 | ||
| Carlin G. Conner | Director | $722,281 | Mixed | 04 Nov 2025 | ||
| Glyn A. Rodgers | President, Matrix PDM Eng | $594,791 | Mixed | 29 Aug 2024 | ||
| Jose Luis Martin de Bustamante | Director | $544,454 | Mixed | 04 Nov 2025 | ||
| Rick J. Bennett | VP & Chief Information Officer | $438,643 | Mixed | 30 Aug 2022 |
Top shareholders of MATRIX SERVICE CO (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
|
Company |
6.8%
from 13D/G
|
3,686,785
|
$43,135,385 | — | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
5.4%
|
1,526,777
|
$17,863,291 | — | 31 Dec 2025 | |
| NEEDHAM INVESTMENT MANAGEMENT LLC |
13F
13D/G
|
Company |
5.2%
from 13D/G
|
1,435,000
|
$16,789,500 | — | 31 Dec 2025 | |
| Harvey Partners, LLC |
13D/G
13F
|
Company |
4.4%
|
1,221,762
|
$16,334,958 | $0 | 30 Jun 2025 | |
| FIRST WILSHIRE SECURITIES MANAGEMENT INC |
13D/G
13F
|
Company |
4.9%
|
1,346,563
|
$15,566,268 | $0 | 31 Dec 2024 | |
| Azarias Capital Management, L.P. |
13D/G
13F
|
Company |
4.4%
|
1,215,415
|
$14,050,197 | -$2,544,980 | 31 Dec 2024 | |
| Jeffrey L. Gendell |
13F
|
Individual |
3.7%
|
1,057,561
|
$12,373,464 | — | 31 Dec 2025 | |
| WESTERLY CAPITAL MANAGEMENT, LLC |
13F
|
Company |
3.5%
|
988,000
|
$11,559,600 | — | 31 Dec 2025 | |
| AMERICAN CENTURY COMPANIES INC |
13F
|
Company |
3.1%
|
883,565
|
$10,337,711 | — | 31 Dec 2025 | |
| John R. Hewitt |
3/4/5
|
President & CEO, Director |
—
mixed-class rows
|
628,800
mixed-class rows
|
$9,567,284 | — | 29 Aug 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
2.4%
|
668,738
|
$7,824,453 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.4%
|
667,970
|
$7,816,887 | — | 31 Dec 2025 | |
| First Eagle Investment Management, LLC |
13F
|
Company |
2.3%
|
640,083
|
$7,488,971 | — | 31 Dec 2025 | |
| CenterBook Partners LP |
13F
|
Company |
2.2%
|
634,046
|
$7,418,338 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
1.9%
|
533,485
|
$6,241,775 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
1.7%
|
493,629
|
$5,775,460 | — | 31 Dec 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
1.7%
|
486,668
|
$5,694,016 | — | 31 Dec 2025 | |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP |
13F
|
Company |
1.4%
|
405,610
|
$4,745,637 | — | 31 Dec 2025 | |
| Russell Investments Group, Ltd. |
13F
|
Company |
1.4%
|
391,890
|
$4,585,109 | — | 31 Dec 2025 | |
| Connor, Clark & Lunn Investment Management Ltd. |
13F
|
Company |
1.4%
|
386,637
|
$4,523,653 | — | 31 Dec 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
1.3%
|
365,238
|
$4,273,285 | — | 31 Dec 2025 | |
| JACOBS LEVY EQUITY MANAGEMENT, INC |
13F
|
Company |
1.2%
|
326,233
|
$3,816,926 | — | 31 Dec 2025 | |
| ACADIAN ASSET MANAGEMENT LLC |
13F
|
Company |
1.1%
|
297,789
|
$3,482,000 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
1%
|
290,322
|
$3,396,776 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
1%
|
287,366
|
$3,362,183 | — | 31 Dec 2025 | |
| Kevin S. Cavanah |
3/4/5
|
VP Finance & CFO |
—
mixed-class rows
|
211,682
mixed-class rows
|
$3,224,633 | — | 29 Aug 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.92%
|
260,573
|
$3,048,705 | — | 31 Dec 2025 | |
| De Lisle Partners LLP |
13F
|
Company |
0.91%
|
257,935
|
$3,019,129 | — | 31 Dec 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
0.89%
|
250,600
|
$2,932,020 | — | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.81%
|
228,409
|
$2,672,385 | — | 31 Dec 2025 | |
| OBERWEIS ASSET MANAGEMENT INC/ |
13F
|
Company |
0.8%
|
226,575
|
$2,650,928 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.8%
|
226,247
|
$2,647,090 | — | 31 Dec 2025 | |
| Qube Research & Technologies Ltd |
13F
|
Company |
0.8%
|
225,475
|
$2,638,058 | — | 31 Dec 2025 | |
| GSA CAPITAL PARTNERS LLP |
13F
|
Company |
0.75%
|
212,213
|
$2,483,000 | — | 31 Dec 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.71%
|
200,710
|
$2,348,307 | — | 31 Dec 2025 | |
| ALGERT GLOBAL LLC |
13F
|
Company |
0.65%
|
182,815
|
$2,139,000 | — | 31 Dec 2025 | |
| Stanley-Laman Group, Ltd. |
13F
|
Company |
0.64%
|
181,563
|
$2,124,287 | — | 31 Dec 2025 | |
| PANAGORA ASSET MANAGEMENT INC |
13F
|
Company |
0.52%
|
146,252
|
$1,711,148 | — | 31 Dec 2025 | |
| COUNTRY TRUST BANK |
13F
|
Company |
0.47%
|
132,662
|
$1,552,145 | — | 31 Dec 2025 | |
| Alan R. Updyke |
3/4/5
|
Chief Operating Officer |
—
mixed-class rows
|
144,194
mixed-class rows
|
$1,436,172 | — | 29 Aug 2024 | |
| ROYCE & ASSOCIATES LP |
13F
|
Company |
0.43%
|
120,782
|
$1,413,149 | — | 31 Dec 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
0.42%
|
118,170
|
$1,382,589 | — | 31 Dec 2025 | |
| Point72 Asset Management, L.P. |
13F
|
Company |
0.41%
|
115,788
|
$1,354,720 | — | 31 Dec 2025 | |
| JANE STREET GROUP, LLC |
13F
|
Company |
0.39%
|
109,608
|
$1,282,413 | — | 31 Dec 2025 | |
| Justin D. Sheets |
3/4/5
|
VP, Legal & Ops Services |
—
mixed-class rows
|
83,904
mixed-class rows
|
$1,281,816 | — | 29 Aug 2025 | |
| VICTORY CAPITAL MANAGEMENT INC |
13F
|
Company |
0.39%
|
109,517
|
$1,281,349 | — | 31 Dec 2025 | |
| Nancy E. Austin |
3/4/5
|
VP, Chief Admin Officer |
—
mixed-class rows
|
108,714
mixed-class rows
|
$1,249,781 | -$47,345 | 18 Feb 2026 | |
| MONEY CONCEPTS CAPITAL CORP |
13F
|
Company |
0.37%
|
104,561
|
$1,223,364 | — | 31 Dec 2025 | |
| Shawn P. Payne |
3/4/5
|
President, Eng & Constr |
—
mixed-class rows
|
104,996
mixed-class rows
|
$1,223,101 | -$197,987 | 25 Nov 2025 | |
| James H. Miller |
3/4/5
|
Director |
0.33%
|
92,078
|
$1,204,407 | — | 04 Nov 2025 |
Recent Insider Transactions by Companies or Individuals for MATRIX SERVICE CO
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Nancy E. Austin | MTRX | COMMON STOCK | Sale | -3.8% | $47,345 | $11.29 | -4,193 | 106,138 | 18 Feb 2026 | Direct |
| Shawn P. Payne | MTRX | COMMON STOCK | Sale | -4.87% | $59,743 | $11.42 | -5,231 | 102,179 | 25 Nov 2025 | Direct |
| Shawn P. Payne | MTRX | COMMON STOCK | Sale | -2.73% | $34,489 | $11.42 | -3,019 | 107,410 | 20 Nov 2025 | Direct |
| Shawn P. Payne | MTRX | COMMON STOCK | Sale | -6.95% | $103,755 | $12.58 | -8,250 | 110,429 | 11 Nov 2025 | Direct |
| Martha Z. Carnes | MTRX | COMMON STOCK | Award | 12.6% | 7,986 | 71,183 | 04 Nov 2025 | Direct | ||
| Jose Luis Martin de Bustamante | MTRX | COMMON STOCK | Award | 23.7% | 7,986 | 41,624 | 04 Nov 2025 | Direct | ||
| James H. Miller | MTRX | COMMON STOCK | Award | 9.5% | 7,986 | 92,078 | 04 Nov 2025 | Direct | ||
| Carlin G. Conner | MTRX | COMMON STOCK | Award | 16.9% | 7,986 | 55,219 | 04 Nov 2025 | Direct | ||
| Liane K. Hinrichs | MTRX | COMMON STOCK | Award | 14.2% | 7,986 | 64,288 | 04 Nov 2025 | Direct | ||
| John D. Chandler | MTRX | COMMON STOCK | Award | 10.2% | 7,986 | 86,039 | 04 Nov 2025 | Direct | ||
| John D. Chandler | MTRX | COMMON STOCK | Purchase | 3.04% | $29,313 | $12.74 | 2,300 | 78,053 | 16 Sep 2025 | Direct |
| Justin D. Sheets | MTRX | COMMON STOCK | Award | 33.2% | 22,471 | 90,114 | 30 Aug 2025 | Direct | ||
| Justin D. Sheets | MTRX | COMMON STOCK | Tax liability | -13.6% | -10,638 | 67,643 | 30 Aug 2025 | Direct | ||
| Justin D. Sheets | MTRX | COMMON STOCK | Disposed to Issuer | -6.46% | -4,739 | 68,650 | 30 Aug 2025 | Direct | ||
| Justin D. Sheets | MTRX | COMMON STOCK | Options Exercise | 7.08% | 4,739 | 71,657 | 30 Aug 2025 | Direct | ||
| Justin D. Sheets | MTRX | RESTRICTED STOCK UNITS | Options Exercise | -100% | -4,739 | 0 | 30 Aug 2025 | Direct | ||
| Douglas J. Montalbano | MTRX | COMMON STOCK | Award | 31% | 16,406 | 69,404 | 30 Aug 2025 | Direct | ||
| Douglas J. Montalbano | MTRX | COMMON STOCK | Tax liability | -13.6% | -8,380 | 52,998 | 30 Aug 2025 | Direct | ||
| Douglas J. Montalbano | MTRX | COMMON STOCK | Disposed to Issuer | -5.43% | -3,091 | 53,806 | 30 Aug 2025 | Direct | ||
| Douglas J. Montalbano | MTRX | COMMON STOCK | Options Exercise | 5.88% | 3,091 | 55,687 | 30 Aug 2025 | Direct | ||
| Douglas J. Montalbano | MTRX | RESTRICTED STOCK UNITS | Options Exercise | -100% | -3,091 | 0 | 30 Aug 2025 | Direct | ||
| Nancy E. Austin | MTRX | COMMON STOCK | Award | 23.2% | 22,471 | 119,117 | 30 Aug 2025 | Direct | ||
| Nancy E. Austin | MTRX | COMMON STOCK | Tax liability | -9.52% | -10,164 | 96,646 | 30 Aug 2025 | Direct | ||
| Nancy E. Austin | MTRX | COMMON STOCK | Disposed to Issuer | -4.64% | -4,739 | 97,395 | 30 Aug 2025 | Direct | ||
| Nancy E. Austin | MTRX | COMMON STOCK | Options Exercise | 4.97% | 4,739 | 100,186 | 30 Aug 2025 | Direct | ||
| Nancy E. Austin | MTRX | RESTRICTED STOCK UNITS | Options Exercise | -100% | -4,739 | 0 | 30 Aug 2025 | Direct | ||
| Shawn P. Payne | MTRX | COMMON STOCK | Award | 23.7% | 24,567 | 128,346 | 30 Aug 2025 | Direct | ||
| Shawn P. Payne | MTRX | COMMON STOCK | Tax liability | -9.87% | -11,370 | 103,779 | 30 Aug 2025 | Direct | ||
| Shawn P. Payne | MTRX | COMMON STOCK | Disposed to Issuer | -3.96% | -4,330 | 104,887 | 30 Aug 2025 | Direct | ||
| Shawn P. Payne | MTRX | COMMON STOCK | Options Exercise | 4.19% | 4,330 | 107,704 | 30 Aug 2025 | Direct | ||
| Shawn P. Payne | MTRX | RESTRICTED STOCK UNITS | Options Exercise | -100% | -4,330 | 0 | 30 Aug 2025 | Direct | ||
| Kevin S. Cavanah | MTRX | COMMON STOCK | Award | 21.8% | 39,847 | 222,712 | 30 Aug 2025 | Direct | ||
| Kevin S. Cavanah | MTRX | COMMON STOCK | Tax liability | -9.2% | -18,518 | 182,865 | 30 Aug 2025 | Direct | ||
| Kevin S. Cavanah | MTRX | COMMON STOCK | Disposed to Issuer | -4.36% | -8,403 | 184,452 | 30 Aug 2025 | Direct | ||
| Kevin S. Cavanah | MTRX | COMMON STOCK | Options Exercise | 4.64% | 8,403 | 189,618 | 30 Aug 2025 | Direct | ||
| Kevin S. Cavanah | MTRX | RESTRICTED STOCK UNITS | Options Exercise | -100% | -8,403 | 0 | 30 Aug 2025 | Direct | ||
| John R. Hewitt | MTRX | COMMON STOCK | Award | 26.8% | 143,805 | 681,224 | 30 Aug 2025 | Direct | ||
| John R. Hewitt | MTRX | COMMON STOCK | Tax liability | -11.8% | -71,858 | 537,419 | 30 Aug 2025 | Direct | ||
| John R. Hewitt | MTRX | COMMON STOCK | Disposed to Issuer | -3.6% | -20,219 | 542,008 | 30 Aug 2025 | Direct | ||
| John R. Hewitt | MTRX | COMMON STOCK | Options Exercise | 3.78% | 20,219 | 555,084 | 30 Aug 2025 | Direct | ||
| John R. Hewitt | MTRX | RESTRICTED STOCK UNITS | Options Exercise | -100% | -20,219 | 0 | 30 Aug 2025 | Direct | ||
| Justin D. Sheets | MTRX | COMMON STOCK | Tax liability | -1.92% | -1,361 | 69,495 | 29 Aug 2025 | Direct | ||
| Justin D. Sheets | MTRX | COMMON STOCK | Disposed to Issuer | -4.69% | -3,483 | 70,856 | 29 Aug 2025 | Direct | ||
| Justin D. Sheets | MTRX | COMMON STOCK | Options Exercise | 4.92% | 3,483 | 74,339 | 29 Aug 2025 | Direct | ||
| Justin D. Sheets | MTRX | RESTRICTED STOCK UNITS | Options Exercise | -33.3% | -3,483 | 6,964 | 29 Aug 2025 | Direct | ||
| Douglas J. Montalbano | MTRX | COMMON STOCK | Tax liability | -2.72% | -1,517 | 54,326 | 29 Aug 2025 | Direct | ||
| Douglas J. Montalbano | MTRX | COMMON STOCK | Disposed to Issuer | -5.94% | -3,529 | 55,843 | 29 Aug 2025 | Direct | ||
| Douglas J. Montalbano | MTRX | COMMON STOCK | Options Exercise | 6.32% | 3,529 | 59,372 | 29 Aug 2025 | Direct | ||
| Douglas J. Montalbano | MTRX | RESTRICTED STOCK UNITS | Options Exercise | -33.3% | -3,529 | 7,058 | 29 Aug 2025 | Direct | ||
| Nancy E. Austin | MTRX | COMMON STOCK | Tax liability | -1.02% | -1,013 | 98,024 | 29 Aug 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.