Event Type
Disclosure
Mandatory
Variant
8-K
. Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers. On December 22, 2025, Tetra Tech, Inc. (the “Company”)
. Other Events. On December 22, 2025, the Company issued press releases announcing the matters described in Item 5.02. Copies of the press releases are attached
. Financial Statements and Exhibits. (d) Exhibits 99.1 Press Release, dated December 22, 2025. 99.2 Press Release, dated December 22, 2025. 104 Cover Page Inter