0000831641-21-000028.txt : 20210217 0000831641-21-000028.hdr.sgml : 20210217 20210217184828 ACCESSION NUMBER: 0000831641-21-000028 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210216 FILED AS OF DATE: 20210217 DATE AS OF CHANGE: 20210217 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: 21646837 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: 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_161360568602166.xml FORM 4 X0306 4 2021-02-16 0 0000831641 TETRA TECH INC TTEK 0001721981 Amidon Derek G 3475 EAST FOOTHILL BOULEVARD PASADENA CA 91107 0 1 0 0 SVP, Comm./Int'l Svcs. Group COMMON STOCK 2021-02-16 4 M 0 1395 47.95 A 8931 D COMMON STOCK 2021-02-16 4 S 0 1395 136.65 D 7536 D COMMON STOCK 2021-02-16 4 S 0 6052 136.7044 D 1484 D STOCK OPTION (RIGHT TO BUY) 47.95 2021-02-16 4 M 0 1395 0 D 2018-11-17 2027-11-17 COMMON STOCK 1395.0 1395 D Amount of securities beneficially owned was updated to reflect that 58 shares of common stock were acquired by the Reporting Person on December 15, 2020, pursuant to the Tetra Tech, Inc. Employee Stock Purchase Plan (ESPP). $136.7044 is an average price. Shares were sold at prices ranging from $136.48 to $136.98 per share. The option becomes exercisable as to 25% of the Shares on each anniversary of the grant date. The option granted expires 10 years after the grant date. /s/ Preston Hopson, Attorney-in-fact for Derek G. Amidon 2021-02-17