0000831641-19-000036.txt : 20190319 0000831641-19-000036.hdr.sgml : 20190319 20190319181935 ACCESSION NUMBER: 0000831641-19-000036 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20190315 FILED AS OF DATE: 20190319 DATE AS OF CHANGE: 20190319 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Amidon Derek G CENTRAL INDEX KEY: 0001721981 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-19655 FILM NUMBER: 19692954 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: 0929 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_155303396058107.xml FORM 4 X0306 4 2019-03-15 0 0000831641 TETRA TECH INC TTEK 0001721981 Amidon Derek G 3475 EAST FOOTHILL BOULEVARD PASADENA CA 91107 0 1 0 0 SVP, Commercial Account Mgmt. COMMON STOCK 2019-03-15 4 S 0 422 58.9723 D 11386 D COMMON STOCK 2019-03-15 4 S 0 4196 58.9505 D 7190 D Amount of securities beneficially owned have also been updated to reflect the acquisition of 107 shares of common stock pursuant to the Tetra Tech, Inc. Employee Stock Purchase Plan (ESPP) on December 14, 2018. /s/ Preston Hopson III, Attorney-in-fact-for Derek G. Amidon 2019-03-19