TETRA TECH INC - Director's Dealing 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TETRA TECH INC (TTEK)
CIK: 0000831641
Period of Report: 2020-08-19

Reporting Person: LEMMON RICHARD A (SVP, Corporate Administration)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-08-19	COMMON STOCK	M	1016	$27.16	Acquired	43888	Direct
2020-08-19	COMMON STOCK	S	1016	$95.074	Disposed	42872	Direct
2020-08-20	COMMON STOCK	M	4000	$27.16	Acquired	46872	Direct
2020-08-20	COMMON STOCK	S	4000	$94.44	Disposed	42872	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-08-19	STOCK OPTION (RIGHT TO BUY)	$27.16	M	1016	Disposed	2025-11-20	COMMON STOCK (1016.0)	Direct
2020-08-20	STOCK OPTION (RIGHT TO BUY)	$27.16	M	4000	Disposed	2025-11-20	COMMON STOCK (4000.0)	Direct

F1: $95.074 is an average price. Shares were sold at prices ranging from $95.01 to $95.09 per share.

F2: The option became exercisable as to 25% of the shares on each anniversary of the grant date.