Tetra Tech Inc SEC filings TTEK
Tetra Tech Inc has 1,000 filings in SEC EDGAR's recent list, going back to Jan 8, 2015. Its latest annual report, Form ARS, was filed on Jan 9, 2026 for the period ended Sep 28, 2025. The latest quarterly report (Form 10-Q) was filed on Jul 31, 2026, covering the quarter ended Jun 28, 2026. The most recent current report (Form 8-K) was filed on Sep 10, 2026 (other events). The company's fiscal year ends on September 27.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Jul 31, 2026 | Jun 28, 2026 |
| 10-Q | Quarterly report | May 1, 2026 | Mar 29, 2026 |
| 10-Q | Quarterly report | Jan 30, 2026 | Dec 28, 2025 |
| 10-Q | Quarterly report | Aug 1, 2025 | Jun 29, 2025 |
| 10-Q | Quarterly report | May 8, 2025 | Mar 30, 2025 |
| 10-Q | Quarterly report | Jan 31, 2025 | Dec 29, 2024 |
| 10-Q | Quarterly report | Aug 2, 2024 | Jun 30, 2024 |
| 10-Q | Quarterly report | May 3, 2024 | Mar 31, 2024 |
| 10-Q | Quarterly report | Feb 2, 2024 | Dec 31, 2023 |
| 10-Q | Quarterly report | Aug 10, 2023 | Jul 2, 2023 |
| 10-Q | Quarterly report | May 11, 2023 | Apr 2, 2023 |
| 10-Q | Quarterly report | Feb 3, 2023 | Jan 1, 2023 |
| 10-Q | Quarterly report | Aug 5, 2022 | Jul 3, 2022 |
| 10-Q | Quarterly report | May 6, 2022 | Apr 3, 2022 |
| 10-Q | Quarterly report | Feb 4, 2022 | Jan 2, 2022 |
| 10-Q | Quarterly report | Jul 30, 2021 | Jun 27, 2021 |
| 10-Q | Quarterly report | Apr 30, 2021 | Mar 28, 2021 |
| 10-Q | Quarterly report | Jan 29, 2021 | Dec 27, 2020 |
| 10-Q | Quarterly report | Jul 31, 2020 | Jun 28, 2020 |
| 10-Q | Quarterly report | May 1, 2020 | Mar 29, 2020 |
| 10-Q | Quarterly report | Jan 31, 2020 | Dec 29, 2019 |
| 10-Q | Quarterly report | Aug 2, 2019 | Jun 30, 2019 |
| 10-Q | Quarterly report | May 3, 2019 | Mar 31, 2019 |
| 10-Q | Quarterly report | Feb 1, 2019 | Dec 30, 2018 |
| 10-Q | Quarterly report | Aug 3, 2018 | Jul 1, 2018 |
| 10-Q | Quarterly report | May 4, 2018 | Apr 1, 2018 |
| 10-Q | Quarterly report | Feb 1, 2018 | Dec 31, 2017 |
| 10-Q | Quarterly report | Aug 4, 2017 | Jul 2, 2017 |
| 10-Q | Quarterly report | May 5, 2017 | Apr 2, 2017 |
| 10-Q | Quarterly report | Feb 3, 2017 | Jan 1, 2017 |
| 10-Q | Quarterly report | Jul 29, 2016 | Jun 26, 2016 |
| 10-Q | Quarterly report | May 4, 2016 | Mar 27, 2016 |
| 10-Q | Quarterly report | Jan 29, 2016 | Dec 27, 2015 |
| 10-Q | Quarterly report | Jul 31, 2015 | Jun 28, 2015 |
| 10-Q | Quarterly report | May 1, 2015 | Mar 29, 2015 |
| 10-Q | Quarterly report | Feb 2, 2015 | Dec 28, 2014 |
Showing 36 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Services-Engineering Services (SIC 8711)
- Listed as
- TTEK (Nasdaq)
- Fiscal year ends
- September 27
- Incorporated in
- DE
- Headquarters
- Pasadena, CA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 831641
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.