TETRA TECH INC — Director's Dealing 2011

Nov 30, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TETRA TECH INC (TTEK)
CIK: 0000831641
Period of Report: 2011-11-30

Reporting Person: CHU RONALD J (EXECUTIVE VICE PRESIDENT)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-11-30	COMMON STOCK	M	4000	$18.54	Acquired	23967	Direct
2011-11-30	COMMON STOCK	S	4000	$21.9351	Disposed	19967	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-11-30	EMPLOYEE STOCK OPTION (RIGHT TO BUY)	$18.54	M	4000	Disposed	2014-11-13	COMMON STOCK (4000)	Direct

Footnotes

F1: The option was fully vested on 11/13/2010.