0000831641-25-000007.txt : 20250206 0000831641-25-000007.hdr.sgml : 20250206 20250206183551 ACCESSION NUMBER: 0000831641-25-000007 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20250204 FILED AS OF DATE: 20250206 DATE AS OF CHANGE: 20250206 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Volpi Kirsten M CENTRAL INDEX KEY: 0001582882 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-19655 FILM NUMBER: 25598694 MAIL ADDRESS: STREET 1: TETRA TECH, INC. STREET 2: 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] ORGANIZATION NAME: 07 Trade & Services 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 wk-form4_1738884944.xml FORM 4 X0508 4 2025-02-04 0 0000831641 TETRA TECH INC TTEK 0001582882 Volpi Kirsten M 3475 EAST FOOTHILL BOULEVARD PASADENA CA 91107 1 0 0 0 0 COMMON STOCK 2025-02-04 4 S 0 1671 34.41 D 68641 D COMMON STOCK 2025-02-04 4 S 0 4100 34.326 D 64541 D COMMON STOCK 2025-02-04 4 S 0 4345 34.31 D 60196 D COMMON STOCK 2025-02-05 4 M 0 6000 9.59 A 66196 D COMMON STOCK 2025-02-05 4 G 0 3800 0 D 62396 D STOCK OPTION (RIGHT TO BUY) 9.59 2025-02-05 4 M 0 6000 9.59 D 2018-11-17 2027-11-18 COMMON STOCK 6000 10000 D All shares sold at an exact price. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $34.32 to $34.33, inclusive. Bona fide gift. No compensation was given to the donor for the gifting of shares. On September 6, 2024, the exercise price of $47.95 was updated pursuant to a 5 to 1 forward stock split. The option becomes exercisable as to 100% of the shares on the anniversary of the grant date. On September 6, 2024, the balance of 3,200 shares was updated pursuant to a 5 to 1 forward stock split, resulting in an additional 12,800 shares of common stock. /s/ Preston Hopson, Attorney-in-fact for Kirsten M. Volpi 2025-02-06