0000831641-17-000045.txt : 20171121 0000831641-17-000045.hdr.sgml : 20171121 20171121170509 ACCESSION NUMBER: 0000831641-17-000045 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20171117 FILED AS OF DATE: 20171121 DATE AS OF CHANGE: 20171121 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: 171217607 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: 0928 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_151130189322805.xml FORM 4 X0306 4 2017-11-17 0 0000831641 TETRA TECH INC TTEK 0001721981 Amidon Derek G 3475 EAST FOOTHILL BOULEVARD PASADENA CA 91107 0 1 0 0 SVP COMMON STOCK 2017-11-17 4 A 0 1720 0 A 13462 D COMMON STOCK 2017-11-18 4 F 0 813 47.95 D 12649 D COMMON STOCK 2017-11-20 4 F 0 37 48.55 D 12612 D STOCK OPTION (RIGHT TO BUY) 47.95 2017-11-17 4 A 0 5580 0 A 2018-11-17 2027-11-17 COMMON STOCK 5580.0 5580 D 1,720 restricted stock units (RSUs) were awarded to the reporting person on November 17, 2017. The RSUs become vested as to 25% of the shares on November 18, 2018, and the anniversary of that date going forward until fully vested. 813 of the shares underlying restricted stock which vested on 11/18/2017 were withheld to pay the related tax liability. 37 of the shares underlying restricted stock which vested on 11/20/2017 were withheld to pay the related tax liability. The option becomes exercisable as to 25% of the Shares on each anniversary of the grant date. JANIS B. SALIN FOR DEREK G. AMIDON 2017-11-21