MATRIX SERVICE CO — DEFA14A Filings
12 DEFA14A filings on record
This page lists all DEFA14A filings submitted to the SEC by MATRIX SERVICE CO (MTRX), sorted by most recent first. Each row links to the full filing on EdgarLookup. MATRIX SERVICE CO has filed 12 DEFA14A documents with the SEC since 2010. To view all SEC filings by MATRIX SERVICE CO, see the full filings list.
All
10-K
10-K/A
10-Q
10-Q/A
144
3
4
4/A
424B3
5
8-A12B
8-K
8-K/A
ARS
CORRESP
DEF 14A
DEFA14A
DEFR14A
EFFECT
NT 10-K
NT 10-Q
POS AM
PRE 14A
PREC14A
REGDEX
S-3
S-3/A
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| DEFA14A | DEFA14A | 0000866273-25-000076 | Oct 21, 2025 | — |
| DEFA14A | DEFA14A | 0000866273-25-000075 | Oct 15, 2025 | — |
| DEFA14A | DEFA14A | 0000866273-25-000074 | Sep 29, 2025 | — |
| DEFA14A | DEFA 14A | 0001140361-25-036003 | Sep 24, 2025 | — |
| DEFA14A | DEFA14A | 0001140361-24-041888 | Sep 25, 2024 | — |
| DEFA14A | DEFA14A | 0001140361-23-047149 | Oct 5, 2023 | — |
| DEFA14A | DEFA14A | 0001140361-22-038226 | Oct 24, 2022 | — |
| DEFA14A | DEFA14A | 0001140361-21-032246 | Sep 23, 2021 | — |
| DEFA14A | DEFA14A | 0000866273-20-000117 | Oct 20, 2020 | — |
| DEFA14A | DEFA14A | 0001140361-20-021432 | Sep 24, 2020 | — |
| DEFA14A | DEFA14A | 0000866273-17-000084 | Sep 7, 2017 | — |
| DEFA14A | FORM 8-K | 0001193125-06-202415 | Oct 4, 2006 | — |