0000831641-18-000146.txt : 20181119 0000831641-18-000146.hdr.sgml : 20181119 20181119210534 ACCESSION NUMBER: 0000831641-18-000146 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20181118 FILED AS OF DATE: 20181119 DATE AS OF CHANGE: 20181119 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Rynning Mark A CENTRAL INDEX KEY: 0001722242 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-19655 FILM NUMBER: 181194100 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_154267951890894.xml FORM 4 X0306 4 2018-11-18 0 0000831641 TETRA TECH INC TTEK 0001722242 Rynning Mark A 3475 EAST FOOTHILL BOULEVARD PASADENA CA 91107 0 1 0 0 SVP, U.S. Infrastructure COMMON STOCK 2018-11-18 4 F 0 197 65.34 D 3161 D Represents the shares underlying restricted stock units (RSUs) which vested on 11/18/2018 and were withheld to pay the related tax liability. /s/ Preston Hopson III, Attorney-in-fact for Mark A. Rynning 2018-11-19