TETRA TECH INC — 8-K Filings
193 8-K filings on record
This page lists all 8-K 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 193 8-K 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 |
|---|---|---|---|---|
| 8-K | FORM 8-K | 0001104659-26-035179 | Mar 26, 2026 | — |
| 8-K | FORM 8-K | 0001104659-26-018205 | Feb 20, 2026 | Feb 19, 2026 |
| 8-K | FORM 8-K | 0001104659-26-007481 | Jan 28, 2026 | — |
| 8-K | FORM 8-K | 0001104659-26-001352 | Jan 6, 2026 | — |
| 8-K | FORM 8-K | 0001104659-25-123764 | Dec 22, 2025 | — |
| 8-K | FORM 8-K | 0001104659-25-110537 | Nov 12, 2025 | — |
| 8-K | FORM 8-K | 0001104659-25-097567 | Oct 7, 2025 | — |
| 8-K | FORM 8-K | 0001104659-25-072237 | Jul 30, 2025 | — |
| 8-K | FORM 8-K | 0001104659-25-045597 | May 7, 2025 | May 5, 2025 |
| 8-K | FORM 8-K | 0001104659-25-019107 | Feb 28, 2025 | Feb 24, 2025 |
| 8-K | FORM 8-K | 0001104659-25-007277 | Jan 30, 2025 | Jan 29, 2025 |
| 8-K | FORM 8-K | 0001104659-25-004551 | Jan 17, 2025 | — |
| 8-K | FORM 8-K | 0001104659-24-117683 | Nov 13, 2024 | — |
| 8-K | FORM 8-K | 0001104659-24-097783 | Sep 6, 2024 | — |
| 8-K | FORM 8-K | 0001104659-24-085407 | Aug 2, 2024 | Jul 29, 2024 |
| 8-K | FORM 8-K | 0001104659-24-084338 | Jul 31, 2024 | — |
| 8-K | FORM 8-K | 0001104659-24-065180 | May 24, 2024 | May 21, 2024 |
| 8-K | FORM 8-K | 0001104659-24-055798 | May 1, 2024 | — |
| 8-K | FORM 8-K | 0001104659-24-029950 | Mar 1, 2024 | Feb 29, 2024 |
| 8-K | FORM 8-K | 0001104659-24-008841 | Jan 31, 2024 | — |
| 8-K | FORM 8-K | 0001104659-23-118762 | Nov 15, 2023 | — |
| 8-K | FORM 8-K | 0001104659-23-094243 | Aug 22, 2023 | Aug 17, 2023 |
| 8-K | FORM 8-K | 0001104659-23-089328 | Aug 9, 2023 | — |
| 8-K | FORM 8-K | 0001104659-23-058476 | May 10, 2023 | — |
| 8-K | FORM 8-K | 0001104659-23-057146 | May 8, 2023 | May 2, 2023 |
| 8-K | FORM 8-K | 0001104659-23-028407 | Mar 3, 2023 | Feb 28, 2023 |
| 8-K | FORM 8-K | 0001104659-23-009319 | Feb 1, 2023 | — |
| 8-K | FORM 8-K | 0001104659-23-006206 | Jan 24, 2023 | Jan 19, 2023 |
| 8-K | FORM 8-K | 0001104659-22-126279 | Dec 12, 2022 | — |
| 8-K | FORM 8-K | 0001104659-22-119143 | Nov 15, 2022 | Nov 11, 2022 |
| 8-K | FORM 8-K | 0001104659-22-117103 | Nov 10, 2022 | Nov 7, 2022 |
| 8-K | FORM 8-K | 0001104659-22-116502 | Nov 9, 2022 | — |
| 8-K | FORM 8-K | 0001104659-22-114455 | Nov 3, 2022 | — |
| 8-K | FORM 8-K | 0001104659-22-112095 | Oct 28, 2022 | Oct 26, 2022 |
| 8-K | FORM 8-K | 0001104659-22-108090 | Oct 12, 2022 | Oct 11, 2022 |
| 8-K | FORM 8-K | 0001104659-22-107222 | Oct 11, 2022 | Oct 7, 2022 |
| 8-K | FORM 8-K | 0001104659-22-102772 | Sep 26, 2022 | Sep 23, 2022 |
| 8-K | FORM 8-K | 0001104659-22-085654 | Aug 3, 2022 | — |
| 8-K | FORM 8-K | 0001104659-22-085217 | Aug 2, 2022 | — |
| 8-K | FORM 8-K | 0001104659-22-055917 | May 4, 2022 | — |
| 8-K | FORM 8-K | 0001104659-22-030582 | Mar 4, 2022 | Mar 1, 2022 |
| 8-K | FORM 8-K | 0001104659-22-025683 | Feb 22, 2022 | — |
| 8-K | FORM 8-K | 0001104659-22-025417 | Feb 22, 2022 | Feb 18, 2022 |
| 8-K | FORM 8-K | 0001104659-22-010878 | Feb 2, 2022 | — |
| 8-K | FORM 8-K | 0001104659-21-140598 | Nov 17, 2021 | — |
| 8-K | FORM 8-K | 0001104659-21-123937 | Oct 7, 2021 | — |
| 8-K | FORM 8-K | 0001104659-21-096966 | Jul 28, 2021 | — |
| 8-K | FORM 8-K | 0001104659-21-056626 | Apr 28, 2021 | — |
| 8-K | FORM 8-K | 0001104659-21-028223 | Feb 25, 2021 | Feb 24, 2021 |
| 8-K | FORM 8-K | 0001104659-21-008213 | Jan 27, 2021 | — |