TETRA TECH INC — Director's Dealing 2021

Feb 1, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TETRA TECH INC (TTEK)
CIK: 0000831641
Period of Report: 2021-01-29

Reporting Person: Hopson Preston III (SVP, General Counsel)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-01-29	COMMON STOCK	F	309	$121.57	Disposed	3315	Direct

Footnotes

F1: Represents the number of shares withheld to pay the related tax liability on 750 restricted stock units (RSUs) which vested on 01/29/2021.

F2: The closing trading price of the underlying common stock on 01/29/2021 when the RSUs vested.

F3: 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).