TETRA TECH INC — Director's Dealing 2014

Feb 14, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TETRA TECH INC (TTEK)
CIK: 0000831641
Period of Report: 2014-02-12

Reporting Person: LEMMON RICHARD A (SENIOR VICE PRESIDENT)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-02-12	COMMON STOCK	M	5000	$18.07	Acquired	29360	Direct
2014-02-12	COMMON STOCK	S	5000	$28.75	Disposed	24360	Direct
2014-02-12	COMMON STOCK	M	4987	$18.07	Acquired	29347	Direct
2014-02-12	COMMON STOCK	S	4987	$28.78	Disposed	24360	Direct
2014-02-13	COMMON STOCK	M	5000	$18.07	Acquired	29360	Direct
2014-02-13	COMMON STOCK	S	5000	$28.7502	Disposed	24360	Direct
2014-02-13	COMMON STOCK	M	2500	$18.07	Acquired	26860	Direct
2014-02-13	COMMON STOCK	S	2500	$28.80	Disposed	24360	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-02-12	STOCK OPTION	$18.07	M	5000	Disposed	2014-03-06	COMMON STOCK (5000)	Direct
2014-02-12	STOCK OPTION	$18.07	M	4987	Disposed	2014-03-06	COMMON STOCK (4987)	Direct
2014-02-13	STOCK OPTION	$18.07	M	5000	Disposed	2014-03-06	COMMON STOCK (5000)	Direct
2014-02-13	STOCK OPTION	$18.07	M	2500	Disposed	2014-03-06	COMMON STOCK (2500)	Direct

Footnotes

F1: The option was fully vested as of March 6, 2010.

F2: Consists of 217 shares acquired under the Tetra Tech, Inc. Employee Stock Purchase Plan (an exempt transaction under Rule 16b-3(c)).