0000831641-18-000184.txt : 20181121 0000831641-18-000184.hdr.sgml : 20181121 20181121200944 ACCESSION NUMBER: 0000831641-18-000184 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20181120 FILED AS OF DATE: 20181121 DATE AS OF CHANGE: 20181121 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: 181199087 MAIL ADDRESS: STREET 1: 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: 0930 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_154284896856481.xml FORM 4 X0306 4 2018-11-20 0 0000831641 TETRA TECH INC TTEK 0001582882 Volpi Kirsten M 3475 EAST FOOTHILL BOULEVARD PASADENA, CA 91107 1 0 0 0 COMMON STOCK 2018-11-20 4 A 0 2880 0 A 11378 D Shares acquired pursuant to vesting of performance stock units (PSUs) earned under 2015 Equity Incentive Plan. Each PSU represented the right to receive one share of common stock. /s/ Preston Hopson III, Attorney-in-fact for Kirsten M. Volpi 2018-11-21