0000831641-23-000113.txt : 20231122 0000831641-23-000113.hdr.sgml : 20231122 20231122201251 ACCESSION NUMBER: 0000831641-23-000113 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20231121 FILED AS OF DATE: 20231122 DATE AS OF CHANGE: 20231122 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Volpi Kirsten M CENTRAL INDEX KEY: 0001582882 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-19655 FILM NUMBER: 231434845 MAIL ADDRESS: STREET 1: TETRA TECH, INC. STREET 2: 3475 EAST FOOTHILL BOULEVARD CITY: PASADENA STATE: CA ZIP: 91107 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: TETRA TECH INC CENTRAL INDEX KEY: 0000831641 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-ENGINEERING SERVICES [8711] IRS NUMBER: 954148514 STATE OF INCORPORATION: DE FISCAL YEAR END: 1001 BUSINESS ADDRESS: STREET 1: 3475 EAST FOOTHILL BOULEVARD CITY: PASADENA STATE: CA ZIP: 91107 BUSINESS PHONE: 6263514664 MAIL ADDRESS: STREET 1: 3475 EAST FOOTHILL BOULEVARD CITY: PASADENA STATE: CA ZIP: 91107 4 1 wk-form4_1700701962.xml FORM 4 X0508 4 2023-11-21 0 0000831641 TETRA TECH INC TTEK 0001582882 Volpi Kirsten M 3475 EAST FOOTHILL BOULEVARD PASADENA CA 91107 1 0 0 0 0 COMMON STOCK 2023-11-21 4 A 0 1054 0 A 15242 D RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) 0 2023-11-21 4 A 0 425 0 A 2024-11-30 COMMON STOCK 425 425 D Shares acquired pursuant to vesting of performance stock units (PSUs) earned under 2018 Equity Incentive Plan Represents an award of restricted stock units (RSUs), each unit of which represents a contingent right to receive one share of Tetra Tech common stock. The RSUs become 100% vested as to the shares underlying the RSUs on November 30, 2024. The RSUs are exercisable at the time of vesting and do not have a set expiration date. /s/ Preston Hopson, Attorney-in-fact for Kirsten M. Volpi 2023-11-22