TETRA TECH INC — Director's Dealing 2020

Jan 24, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TETRA TECH INC (TTEK)
CIK: 0000831641
Period of Report: 2020-01-22

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-01-22	COMMON STOCK	M	2790	$47.95	Acquired	9139	Direct
2020-01-22	COMMON STOCK	S	4783	$90	Disposed	4356	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-01-22	STOCK OPTION (RIGHT TO BUY)	$47.95	M	2790	Disposed	2027-11-17	COMMON STOCK (2790.0)	Direct

Footnotes

F1: Amount of securities beneficially owned was updated to reflect that 96 shares of common stock were acquired by the Reporting Person on December 13, 2019, pursuant to the Tetra Tech, Inc. Employee Stock Purchase Plan (ESPP).

F2: Pursuant to a 10b5-1 Plan.

F3: $90.0000105 is an average price. Shares were sold at prices ranging from $90.00 to $90.05 per share.

F4: The option becomes exercisable as to 25% of the shares on each anniversary of the grant date.