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: 2020-11-16

Reporting Person: Volpi Kirsten M (Director)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-11-16	COMMON STOCK	M	4200	$28.58	Acquired	20143	Direct
2020-11-16	COMMON STOCK	S	997	$122.2614	Disposed	19146	Direct
2020-11-18	COMMON STOCK	M	582	—	Acquired	19728	Direct
2020-11-18	COMMON STOCK	A	3600	—	Acquired	23328	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-11-16	STOCK OPTION (RIGHT TO BUY)	$28.58	M	4200	Disposed	2021-11-22	COMMON STOCK (4200.0)	Direct
2020-11-18	RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)	$0.0	M	582	Disposed	2020-11-21	COMMON STOCK (582.0)	Direct

F1: Shares automatically acquired upon the vesting of restricted stock units (RSUs).

F2: Each RSU represented the right to receive one share of Tetra Tech common stock.

F3: Shares acquired pursuant to vesting of performance stock units (PSUs) earned under 2015 Equity Incentive Plan.

F4: Each PSU represented the right to receive one share of Tetra Tech common stock.

F5: The option became exercisable as to 100% of the shares on the anniversary of the grant date.

F6: The option granted expires 8 years after the grant date.

F7: The restricted stock units (RSUs) became vested as to 100% of the shares underlying the RSUs on November 18, 2020.