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CIK 0000831641 · Large accelerated filer

TETRA TECH INC

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Ticker
TTEK
Exchange
Nasdaq
Industry
Services-Engineering Services
FY end
Sep 27
Incorporated
DE
Entity type
operating
EIN
954148514
Phone
6263514664
Business address
3475 EAST FOOTHILL BOULEVARD, PASADENA, CA, 91107
  1. 424B3 Offering Prospectus
  2. S-3 Offering Registration Statement
  3. 424B3 Offering Prospectus
  4. DEF 14C Other DEF 14C
  5. S-3 Offering Registration Statement
  6. 424B3 Offering Prospectus
  7. 10-Q/A Report 10-Q/A
  8. 10-Q/A Report 10-Q/A
  9. S-3 Offering Registration Statement
  10. 10-Q Report Quarterly Report
  11. SC 13G/A Stake Amended Statement of Ownership
  12. SC 13G/A Stake Amended Statement of Ownership
  13. 10-Q Report Quarterly Report
  14. SC 13G/A Stake Amended Statement of Ownership
  15. SC 13G/A Stake Amended Statement of Ownership
  16. SC 13G Stake Amended Statement of Ownership
  17. SC 13G/A Stake Amended Statement of Ownership
  18. DEF 14A Proxy Proxy Statement
  19. 424B3 Offering Prospectus
  20. PRE 14A Proxy Proxy Statement (Preliminary)

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