Insider · CIK 0001582882

Kirsten M Volpi

Files at: TTEK. On EDGAR ↗

Period1M 3M 6M 1Y 2Y All datashares as filed — not split-adjusted

Open-market buys & salesbuys $0 · 0sales $80k · 1net −$80k

Reported trades — common stock

Trade	Reported (ET)	Company	Shares	Avg price	Total	Owned after	Δ stake	Flags
Aug 4, 2026 MForm 4 →	Aug 6, 5:17 pm EDT	TETRA TECH INCTTEK	2,300	$9.59	$22,057	74,218	—
Jun 4, 2026 MForm 4 →	Jun 5, 7:08 pm EDT	TETRA TECH INCTTEK	1,700	$9.59	$16,303	71,918	—
Nov 20, 2018 AForm 4 →	Nov 21, 8:09 pm EST	TETRA TECH INCTTEK	2,880	—	—	11,378	—	plan?
Nov 15, 2018 GForm 4 →	Nov 16, 5:19 pm EST	TETRA TECH INCTTEK	303	$66.11	$20,031	8,498	—	plan?
Nov 14, 2018 SForm 4 →	Nov 16, 5:19 pm EST	TETRA TECH INCTTEK	1,200	$66.94	$80,325	8,801	−12.0%	plan?
Feb 22, 2018 GForm 4 →	Feb 23, 4:09 pm EST	TETRA TECH INCTTEK	520	—	—	10,001	—	plan?
Nov 21, 2017 AForm 4 →	Nov 22, 4:26 pm EST	TETRA TECH INCTTEK	3,501	—	—	10,521	—	plan?
Nov 17, 2017 AForm 4 →	Nov 21, 5:18 pm EST	TETRA TECH INCTTEK	900	—	—	7,020	—	plan?
Nov 18, 2016 AForm 4 →	Nov 22, 6:17 pm EST	TETRA TECH INCTTEK	1,140	—	—	6,120	—	plan?
Nov 20, 2015 AForm 4 →	Nov 24, 4:04 pm EST	TETRA TECH INCTTEK	1,140	—	—	4,980	—	plan?

Reported trades — derivatives (options, RSUs, warrants)

Trade	Reported (ET)	Company	Shares	Avg price	Total	Owned after	Δ stake	Flags
Aug 4, 2026 MForm 4 →	Aug 6, 5:17 pm EDT	TETRA TECH INCTTEK	2,300	—	—	4,000	—
Jun 4, 2026 MForm 4 →	Jun 5, 7:08 pm EDT	TETRA TECH INCTTEK	1,700	—	—	6,300	—
Nov 15, 2018 AForm 4 →	Nov 16, 5:19 pm EST	TETRA TECH INCTTEK	770	—	—	770	—
Nov 17, 2017 AForm 4 →	Nov 21, 5:18 pm EST	TETRA TECH INCTTEK	4,200	—	—	4,200	—
Nov 18, 2016 AForm 4 →	Nov 22, 6:17 pm EST	TETRA TECH INCTTEK	4,200	—	—	4,200	—
Nov 20, 2015 AForm 4 →	Nov 24, 4:04 pm EST	TETRA TECH INCTTEK	4,200	—	—	4,200	—