TETRA TECH INC — Director's Dealing 2010

Nov 16, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TETRA TECH INC (TTEK)
CIK: 0000831641
Period of Report: 2010-11-12

Reporting Person: ROGERS DONALD I JR (EXECUTVIE VICE PRESIDENT)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-11-12	COMMON STOCK	A	5376	—	Acquired	26745	Direct
2010-11-13	COMMON STOCK	D	2370	—	Disposed	24375	Direct
2010-11-16	COMMON STOCK	A	493	—	Acquired	24868	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-11-12	EMPLOYEE STOCK OPTION (RIGHT TO BUY)	$23.48	A	26873	Acquired	2018-11-12	COMMON STOCK (26873)	Direct

Footnotes

F1: The option becomes exercisable as to 25% of the shares on each anniversary of the grant date.

F2: In accordance with the Executive Compensation Policy, 140% of the installment vested on November 16, 2010 and 493 additional shares were issued to the reporting person.