0000831641-21-000139.txt : 20211124 0000831641-21-000139.hdr.sgml : 20211124 20211124200001 ACCESSION NUMBER: 0000831641-21-000139 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20211123 FILED AS OF DATE: 20211124 DATE AS OF CHANGE: 20211124 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Hopson Preston III CENTRAL INDEX KEY: 0001728969 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-19655 FILM NUMBER: 211448828 MAIL ADDRESS: STREET 1: 3475 E FOOTHILL BLVD 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: 1003 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 wf-form4_163780198631418.xml FORM 4 X0306 4 2021-11-23 0 0000831641 TETRA TECH INC TTEK 0001728969 Hopson Preston III 3475 EAST FOOTHILL BLVD. PASADENA CA 91107 0 1 0 0 SVP, General Counsel COMMON STOCK 2021-11-23 4 A 0 6466 0 A 10924 D COMMON STOCK 2021-11-23 4 F 0 3043 190.38 D 7881 D RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) 0.0 2021-11-23 4 A 0 1645 0 A 2022-11-18 2025-11-18 COMMON STOCK 1645.0 1645 D Shares acquired pursuant to vesting of performance stock units (PSUs) earned under 2018 Equity Incentive Plan. Represents the combined number of shares withheld to pay the related tax liability on a total of 6,466 performance stock units (PSUs) which vested on November 23, 2021. The RSUs become vested as to 25% of the shares on November 18, 2022, and the anniversary of that date going forward until fully vested. /s/ Preston Hopson 2021-11-24