TETRA TECH INC - Director's Dealing 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TETRA TECH INC (TTEK)
CIK: 0000831641
Period of Report: 2017-12-06

Reporting Person: BATRACK DAN L (Director, CHAIRMAN AND CEO)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-12-06	COMMON STOCK	M	10856	$24.26	Acquired	286533	Direct
2017-12-06	COMMON STOCK	S	10856	$48.7644	Disposed	275677	Direct
2017-12-07	COMMON STOCK	M	12341	$24.26	Acquired	288018	Direct
2017-12-07	COMMON STOCK	S	12341	$48.7483	Disposed	275677	Direct
2017-12-07	COMMON STOCK	M	8968	$28.58	Acquired	284645	Direct
2017-12-06	COMMON STOCK	S	8968	$48.5586	Disposed	275677	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-12-06	STOCK OPTION (RIGHT TO BUY)	$24.26	M	10856	Disposed	2020-11-16	COMMON STOCK (10856.0)	Direct
2017-12-07	STOCK OPTION (RIGHT TO BUY)	$24.26	M	12341	Disposed	2020-11-16	COMMON STOCK (12341.0)	Direct
2017-12-07	STOCK OPTION (RIGHT TO BUY)	$28.58	M	8968	Disposed	2021-11-22	COMMON STOCK (8968.0)	Direct

F1: $48.7644 is an average price. Shares were sold at prices ranging from $48.75to $48.85 per share.

F2: $48.7483 is an average price. Shares were sold at prices ranging from $48.65 to $48.85 per share.

F3: $48.5586 is an average price. Shares were sold at prices ranging from $48.50 to $48.65 per share.

F4: The option was fully exercisable on November 16, 2016.

F5: The option was fully exercisable on November 22, 2017.