Latest filingAug 31, 2026Most recent Form 4
MTRX
MATRIX SERVICE CO
NasdaqIndustrialsConstruction - Special Trade Contractors
Insider activity for last month from 08/04 to 09/04. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$00 buys
Total selling$00 sells
Net open-market+$03 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period53transactions
- M · Option exercise · dominant24 · 45%
- F · Tax withholding13 · 25%
- D · Issuer dispositions12 · 23%
- A · Grants / awards4 · 8%
Activity by reported role
A joint filing can contribute to multiple roles106transactions
- Chief executive officer · dominant19 · 18%
- PRES19 · 18%
- ES18 · 17%
- SVP18 · 17%
- Chief financial officer16 · 15%
- VF16 · 15%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (3)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typePayne Shawn PCommon Stock · Direct
125,054Aug 30, 2026
Sheets Justin DCommon Stock · Direct
73,012Aug 30, 2026
Cavanah Kevin SCommon Stock · Direct
82,390Aug 30, 2026
Payne Shawn PRestricted Stock Units · Direct
0Aug 30, 2026
Sheets Justin DRestricted Stock Units · Direct
0Aug 30, 2026
Cavanah Kevin SRestricted Stock Units · Direct
0Aug 30, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 04 → Sep 04
LessMore
Top insiders
By absolute net value across the selected period- CS-$264.6k
- PP-$244.8k
- SD-$151.9k
Recent filing activity
Most recent 12 transactions · color = transaction code- MOption exercise08/31$0SEC
- MOption exercise08/31$0SEC
- MOption exercise08/31$0SEC
- MOption exercise08/31$0SEC
- FTax withholding08/31-$1.04MSEC
- DIssuer disposition08/31-$2.78MSEC
- MOption exercise08/31—SEC
- FTax withholding08/31-$1.40MSEC
- DIssuer disposition08/31-$3.77MSEC
- MOption exercise08/31—SEC
- FTax withholding08/31-$690kSEC
- DIssuer disposition08/31-$1.85MSEC
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
MTRX transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| MTRX | SHEETS JUSTIN D | SVPES | exercise | 2.57k | $0 | M | 0.0% | 08/31 | 08/30 | |
| MTRX | SHEETS JUSTIN D | SVPES | exercise | 3.48k | $0 | M | 0.0% | 08/31 | 08/29 | |
| MTRX | SHEETS JUSTIN D | SVPES | exercise | 1.69k | $0 | M | 0.0% | 08/31 | 08/27 | |
| MTRX | SHEETS JUSTIN D | SVPES | exercise | 2.42k | $0 | M | 0.0% | 08/31 | 08/27 | |
| MTRX | SHEETS JUSTIN D | SVPES | withholding | 962 | -$1.04M | F | 0.0% | 08/31 | 08/30 | |
| MTRX | SHEETS JUSTIN D | SVPES | return | 2.57k | -$2.78M | D | 0.0% | 08/31 | 08/30 | |
| MTRX | SHEETS JUSTIN D | SVPES | exercise | 2.57k | — | M | 0.0% | 08/31 | 08/30 | |
| MTRX | SHEETS JUSTIN D | SVPES | withholding | 1.30k | -$1.40M | F | 0.0% | 08/31 | 08/29 | |
| MTRX | SHEETS JUSTIN D | SVPES | return | 3.48k | -$3.77M | D | 0.0% | 08/31 | 08/29 | |
| MTRX | SHEETS JUSTIN D | SVPES | exercise | 3.48k | — | M | 0.0% | 08/31 | 08/29 | |
| MTRX | SHEETS JUSTIN D | SVPES | withholding | 633 | -$690k | F | 0.0% | 08/31 | 08/27 | |
| MTRX | SHEETS JUSTIN D | SVPES | return | 1.69k | -$1.85M | D | 0.0% | 08/31 | 08/27 | |
| MTRX | SHEETS JUSTIN D | SVPES | exercise | 1.69k | — | M | 0.0% | 08/31 | 08/27 | |
| MTRX | SHEETS JUSTIN D | SVPES | withholding | 907 | -$989k | F | 0.0% | 08/31 | 08/27 | |
| MTRX | SHEETS JUSTIN D | SVPES | return | 2.42k | -$2.65M | D | 0.0% | 08/31 | 08/27 | |
| MTRX | SHEETS JUSTIN D | SVPES | exercise | 2.42k | — | M | 0.0% | 08/31 | 08/27 | |
| MTRX | Cavanah Kevin S | VFCFO | exercise | 4.56k | $0 | M | 0.0% | 08/31 | 08/30 | |
| MTRX | Cavanah Kevin S | VFCFO | exercise | 6.17k | $0 | M | 0.0% | 08/31 | 08/29 | |
| MTRX | Cavanah Kevin S | VFCFO | exercise | 3.00k | $0 | M | 0.0% | 08/31 | 08/27 | |
| MTRX | Cavanah Kevin S | VFCFO | exercise | 4.30k | $0 | M | 0.0% | 08/31 | 08/27 | |
| MTRX | Cavanah Kevin S | VFCFO | withholding | 1.57k | -$1.70M | F | 0.0% | 08/31 | 08/30 | |
| MTRX | Cavanah Kevin S | VFCFO | return | 4.56k | -$4.94M | D | 0.0% | 08/31 | 08/30 | |
| MTRX | Cavanah Kevin S | VFCFO | exercise | 4.56k | — | M | 0.0% | 08/31 | 08/30 | |
| MTRX | Cavanah Kevin S | VFCFO | withholding | 2.13k | -$2.30M | F | 0.0% | 08/31 | 08/29 | |
| MTRX | Cavanah Kevin S | VFCFO | return | 6.17k | -$6.68M | D | 0.0% | 08/31 | 08/29 | |
| MTRX | Cavanah Kevin S | VFCFO | exercise | 6.17k | — | M | 0.0% | 08/31 | 08/29 | |
| MTRX | Cavanah Kevin S | VFCFO | withholding | 1.10k | -$1.20M | F | 0.0% | 08/31 | 08/27 | |
| MTRX | Cavanah Kevin S | VFCFO | return | 3.00k | -$3.28M | D | 0.0% | 08/31 | 08/27 | |
| MTRX | Cavanah Kevin S | VFCFO | exercise | 3.00k | — | M | 0.0% | 08/31 | 08/27 | |
| MTRX | Cavanah Kevin S | VFCFO | withholding | 1.48k | -$1.62M | F | 0.0% | 08/31 | 08/27 | |
| MTRX | Cavanah Kevin S | VFCFO | return | 4.30k | -$4.69M | D | 0.0% | 08/31 | 08/27 | |
| MTRX | Cavanah Kevin S | VFCFO | exercise | 4.30k | — | M | 0.0% | 08/31 | 08/27 | |
| MTRX | PAYNE SHAWN P | PRESCEO | exercise | 2.81k | $0 | M | 0.0% | 08/31 | 08/30 | |
| MTRX | PAYNE SHAWN P | PRESCEO | exercise | 4.07k | $0 | M | 0.0% | 08/31 | 08/29 | |
| MTRX | PAYNE SHAWN P | PRESCEO | exercise | 4.10k | $0 | M | 0.0% | 08/31 | 08/27 | |
| MTRX | PAYNE SHAWN P | PRESCEO | exercise | 2.84k | $0 | M | 0.0% | 08/31 | 08/27 | |
| MTRX | PAYNE SHAWN P | PRESCEO | withholding | 1.10k | -$1.19M | F | 0.0% | 08/31 | 08/30 | |
| MTRX | PAYNE SHAWN P | PRESCEO | return | 2.81k | -$3.05M | D | 0.0% | 08/31 | 08/30 | |
| MTRX | PAYNE SHAWN P | PRESCEO | exercise | 2.81k | — | M | 0.0% | 08/31 | 08/30 | |
| MTRX | PAYNE SHAWN P | PRESCEO | withholding | 1.60k | -$1.73M | F | 0.0% | 08/31 | 08/29 | |
| MTRX | PAYNE SHAWN P | PRESCEO | return | 4.07k | -$4.41M | D | 0.0% | 08/31 | 08/29 | |
| MTRX | PAYNE SHAWN P | PRESCEO | exercise | 4.07k | — | M | 0.0% | 08/31 | 08/29 | |
| MTRX | PAYNE SHAWN P | PRESCEO | withholding | 3.22k | -$3.51M | F | 0.0% | 08/31 | 08/27 | |
| MTRX | PAYNE SHAWN P | PRESCEO | withholding | 1.61k | -$1.76M | F | 0.0% | 08/31 | 08/27 | |
| MTRX | PAYNE SHAWN P | PRESCEO | return | 4.10k | -$4.47M | D | 0.0% | 08/31 | 08/27 | |
| MTRX | PAYNE SHAWN P | PRESCEO | exercise | 4.10k | — | M | 0.0% | 08/31 | 08/27 | |
| MTRX | PAYNE SHAWN P | PRESCEO | withholding | 1.11k | -$1.21M | F | 0.0% | 08/31 | 08/27 | |
| MTRX | PAYNE SHAWN P | PRESCEO | return | 2.84k | -$3.10M | D | 0.0% | 08/31 | 08/27 | |
| MTRX | PAYNE SHAWN P | PRESCEO | exercise | 2.84k | — | M | 0.0% | 08/31 | 08/27 |
MATRIX SERVICE CO Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at MATRIX SERVICE CO?
SHEETS JUSTIN D, Cavanah Kevin S, PAYNE SHAWN P.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
No code-S sale is available for this period.
What is the recent purchase and sale balance?
No code-P purchases or code-S sales were reported in the selected period.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.