TETRA TECH INC — Director's Dealing 2017

Feb 7, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TETRA TECH INC (TTEK)
CIK: 0000831641
Period of Report: 2017-02-06

Reporting Person: LEWIS J CHRISTOPHER (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-02-06	COMMON STOCK	M	8000	$17.74	Acquired	61900	Direct
2017-02-06	COMMON STOCK	S	3511	$41.3099	Disposed	58389	Direct
2017-02-06	COMMON STOCK	S	10000	$41.3013	Disposed	48389	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-02-06	STOCK OPTION (RIGHT TO BUY)	$17.74	M	8000	Disposed	2017-03-02	COMMON STOCK (8000)	Direct

Footnotes

F1: The option was fully exercisable on March 1, 2008.

F2: The option expires in the current year.

F3: All shares sold at an exact price.

F4: $41.3013 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.30 to $41.325.