TETRA TECH INC — Director's Dealing 2014

Jan 21, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TETRA TECH INC (TTEK)
CIK: 0000831641
Period of Report: 2014-01-17

Reporting Person: CHU RONALD J (EXECUTIVE VICE PRESIDENT)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-01-17	COMMON STOCK	M	10000	$23.68	Acquired	41225	Direct
2014-01-17	COMMON STOCK	S	10000	$30.00	Disposed	31225	Direct
2014-01-17	COMMON STOCK	M	17750	$16.98	Acquired	48975	Direct
2014-01-17	COMMON STOCK	S	17750	$30.00	Disposed	31225	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-01-17	EMPLOYEE STOCK OPTION (RIGHT TO BUY)	$23.68	M	10000	Disposed	2015-11-16	COMMON STOCK (10000)	Direct
2014-01-17	EMPLOYEE STOCK OPTION (RIGHT TO BUY)	$16.98	M	17750	Disposed	2016-11-14	COMMON STOCK (17750)	Direct

Footnotes

F1: Pursuant to a 10b5-1 Plan.

F2: The option was fully vested as of November 16, 2011.

F3: Consists of 217 shares acquired under the Tetra Tech, Inc. Employee Stock Purchase Plan (an exempt transaction under Rule 16b-3(c)).

F4: The option was fully vested as of November 14, 2012.