Company facts
- Industry
- Services-Engineering Services
- Headquarters
- Pasadena, California
- Most recent report
- 8-K, filed Sep 10, 2026
- Incorporated
- Delaware
- Filings on record
- 1,000+ filings
- On EDGAR
- CIK 831641
- Fiscal year ends
- September
- Filer status
- Large accelerated filer
Financials 8 of 48
News 8 of 93
Prospectuses and Registrations 4
Proxies 8 of 24
- DEFA14A Extra proxy material Jan 9, 2026
- DEF 14A Proxy statement for a shareholder vote Jan 9, 2026
- DEFA14A Extra proxy material Jan 16, 2025
- DEF 14A Proxy statement for a shareholder vote Jan 16, 2025
- DEFA14A Extra proxy material Jan 18, 2024
- DEF 14A Proxy statement for a shareholder vote Jan 18, 2024
- DEFA14A Extra proxy material Jan 17, 2023
- DEF 14A Proxy statement for a shareholder vote Jan 17, 2023
Ownership 8 of 813
- 4 Insider reported a trade Aug 6, 2026
- 4 Insider reported a trade Jun 5, 2026
- 4 Insider reported a trade May 15, 2026
- SCHEDULE 13G Large holder reported a passive stake Apr 30, 2026
- 4 Insider reported a trade Apr 28, 2026
- 3 Insider reported their initial holding Apr 3, 2026
- SCHEDULE 13G/A Large holder reported a passive stake, amended Mar 27, 2026
- 4 Insider reported a trade Mar 18, 2026
Other 8 of 18
- ARS Annual report sent to shareholders Jan 9, 2026
- ARS Annual report sent to shareholders Jan 16, 2025
- UPLOAD Comment letter from SEC staff Apr 5, 2024
- CORRESP Reply to SEC staff Apr 5, 2024
- UPLOAD Comment letter from SEC staff Mar 13, 2024
- CORRESP Reply to SEC staff Mar 1, 2024
- UPLOAD Comment letter from SEC staff Jan 30, 2024
- ARS Annual report sent to shareholders Jan 18, 2024
Everything here comes from Tetra Tech Inc's own filings on SEC EDGAR. The filing list is rechecked every hour.