Tetra Tech Inc

Ownership Transactions Reported by 24 Insiders

	Insiders	Shares	%	Avg Price	Total $
Buys	0
Sells	2	-12.5K	100%	$34.65	-$433K
Net	-2	-12.5K	-100%		-$433K

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Report Date
William R. Brownlie	SVP, Chief Engineer	$14.3M			Oct 2, 2022
Dan L. Batrack	Chairman and CEO, Director	$14.2M			Nov 19, 2025
Leslie L. Shoemaker	EVP, Chief Sustainability	$11.7M			Nov 19, 2025
Lewis J Christopher	Director	$9.58M			Dec 14, 2022
Craig L. Christensen	Svp, Cio	$6.16M			Oct 2, 2022
Richard A. Lemmon	SVP, Corporate Administration	$6.06M			Oct 2, 2022
Steven M. Burdick	Evp, Cfo	$5.64M			Nov 19, 2025
Joanne M. Maguire	Director	$4.56M			Sep 30, 2024
Kimberly E. Ritrievi	Director	$4.07M			Nov 19, 2025
Preston Hopson	EVP, Chief Legal/Human Capital	$3.23M			Nov 19, 2025
Bernard Teufele	SVP, Canada and South America	$2.31M			Oct 2, 2022
Brian N. Carter	SVP, Corporate Controller	$2.15M			Nov 18, 2025
Derek G. Amidon	SVP, Comm./Int'l Svcs. Group	$2.05M			Oct 1, 2023
J. Kenneth Thompson	Director	$2.02M			Feb 14, 2024
Roger R. Argus	President	$1.72M			Nov 19, 2025
Gary Birkenbeuel	Director	$1.43M	-$86.1K	-5.69%	Nov 19, 2025
Jill Hudkins	President	$990K			Nov 27, 2023
Kirsten M. Volpi	Director	$750K	-$347K	-31.6%	Nov 19, 2025
Patrick C. Haden	Director	$560K			Mar 17, 2022
Prashant Gandhi	Director	$537K			Nov 19, 2025
Mark A. Rynning	SVP, R&S Infrastructure	$396K			Nov 18, 2021
Brendan O'Rourke	SVP, Enterprise Risk Mgmt.	$390K			Nov 16, 2022
Christiana Obiaya	Director	$298K			Nov 19, 2025
John M. Douglas	Director	$17K			Feb 27, 2025

Insider	Symbol	Class	Transaction	%	Value $	* Price $	Shares	Shares Owned	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.