10-K

Company

TETRA TECH INC

Filed

November 23, 2020

Period of Report

September 27, 2020

Accession Number

0000831641-20-000154

A 10-K is a company's comprehensive annual report, required by the SEC. It includes audited financial statements, a description of the business, risk factors, and management's discussion of results. Learn more about 10-K filings →