TETRA TECH INC — Director's Dealing 2021

Nov 22, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TETRA TECH INC (TTEK)
CIK: 0000831641
Period of Report: 2021-11-18

Reporting Person: Amidon Derek G (SVP, Comm./Int'l Svcs. Group)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-11-18	COMMON STOCK	M	539	—	Acquired	2023	Direct
2021-11-18	COMMON STOCK	M	524	—	Acquired	2547	Direct
2021-11-18	COMMON STOCK	M	574	—	Acquired	3121	Direct
2021-11-18	COMMON STOCK	F	918	$187.88	Disposed	2203	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-11-18	RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)	$0.0	M	539	Disposed	2022-11-18	COMMON STOCK (539.0)	Direct
2021-11-18	RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)	$0.0	M	524	Disposed	2023-11-21	COMMON STOCK (524.0)	Direct
2021-11-18	RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)	$0.0	M	574	Disposed	2024-11-19	COMMON STOCK (574.0)	Direct

Footnotes

F1: The award becomes vested as to 25% of the RSUs on the anniversary of the grant date.

F2: Represents the combined number of shares withheld to pay the related tax liability on a total of 2,067 restricted stock units (RSUs) which vested on 11/18/2021.

F3: The RSUs become vested as to 25% of the shares on November 18, 2019, and the anniversary of that date going forward until fully vested.

F4: The RSUs become vested as to 25% of the shares on November 18, 2020, and the anniversary of that date going forward until fully vested.

F5: The RSUs become vested as to 25% of the shares on November 18, 2021, and the anniversary of that date going forward until fully vested.