TETRA TECH INC — DEFA14A Filings
16 DEFA14A filings on record
This page lists all DEFA14A filings submitted to the SEC by TETRA TECH INC (TTEK), sorted by most recent first. Each row links to the full filing on EdgarLookup. TETRA TECH INC has filed 16 DEFA14A documents with the SEC since 2014. To view all SEC filings by TETRA TECH INC, see the full filings list.
All
10-C
10-K
10-K/A
10-Q
10-Q/A
144
3
3/A
4
4/A
424B1
424B2
424B3
424B4
5
8-K
8-K/A
ARS
CORRESP
DEF 14A
DEF 14C
DEFA14A
DEFR14A
NT 10-K
NT 10-Q
POS AM
PRE 14A
PRER14C
S-3
S-3/A
S-3MEF
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13D/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| DEFA14A | DEFA14A | 0001104659-26-002470 | Jan 9, 2026 | — |
| DEFA14A | DEFA14A | 0001104659-25-004096 | Jan 16, 2025 | — |
| DEFA14A | DEFA14A | 0001104659-24-004801 | Jan 18, 2024 | — |
| DEFA14A | DEFA14A | 0001104659-23-004239 | Jan 17, 2023 | — |
| DEFA14A | DEFA14A | 0001104659-22-004900 | Jan 18, 2022 | — |
| DEFA14A | DEFA14A | 0001104659-21-004238 | Jan 14, 2021 | — |
| DEFA14A | DEFA14A | 0001104659-20-004319 | Jan 15, 2020 | — |
| DEFA14A | DEFA14A | 0001104659-19-002515 | Jan 18, 2019 | — |
| DEFA14A | DEFA14A | 0001104659-18-003813 | Jan 24, 2018 | — |
| DEFA14A | DEFA14A | 0001104659-17-002819 | Jan 18, 2017 | — |
| DEFA14A | DEFA14A | 0001104659-16-090373 | Jan 19, 2016 | — |
| DEFA14A | DEFA14A | 0001104659-15-002664 | Jan 15, 2015 | — |
| DEFA14A | DEFA14A | 0001104659-14-001742 | Jan 10, 2014 | — |
| DEFA14A | DEFA14A | 0001104659-13-002105 | Jan 14, 2013 | — |
| DEFA14A | DEFA14A | 0001104659-12-001643 | Jan 11, 2012 | — |
| DEFA14A | DEFA14A | 0001047469-11-000099 | Jan 12, 2011 | — |