TETRA TECH INC — Director's Dealing 2020

Jan 31, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TETRA TECH INC (TTEK)
CIK: 0000831641
Period of Report: 2020-01-29

Reporting Person: O'Rourke Brendan M. (SVP, Enterprise Risk Mgmt.)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-01-29	COMMON STOCK	M	250	—	Acquired	859	Direct
2020-01-29	COMMON STOCK	F	96	—	Disposed	763	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-01-29	RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)	$0.0	M	250	Disposed	2022-01-29	COMMON STOCK (250.0)	Direct

Footnotes

F1: Amount of securities beneficially owned was updated to reflect that 96 shares of common stock were acquired by the Reporting Person on December 13, 2019, pursuant to the Tetra Tech, Inc. Employee Stock Purchase Plan (ESPP).

F2: Represents the shares underlying RSUs which vested on 01/29/2020 and were withheld to pay the related tax liability.

F3: The award becomes vested as to 25% of the RSUs on the anniversary of the grant date.