Volpi Kirsten M

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
10 Sep 24	TTEK Tetra Tech	COMMON STOCK	Sell	Dispose S	No	No	46	1,950	89.70 k	63,790
12 Aug 24	TTEK Tetra Tech	COMMON STOCK	Option exercise	Acquire M	No	No	47.95	300	14.39 k	13,148
12 Aug 24	TTEK Tetra Tech	STOCK OPTION COMMON STOCK	Option exercise	Dispose M	No	No	47.95	300	14.39 k	3,200
6 Feb 24	TTEK Tetra Tech	COMMON STOCK	Option exercise	Acquire M	No	No	47.95	500	23.98 k	12,848
6 Feb 24	TTEK Tetra Tech	STOCK OPTION COMMON STOCK	Option exercise	Dispose M	No	No	47.95	500	23.98 k	3,500
5 Dec 23	TTEK Tetra Tech	COMMON STOCK	Gift	Dispose G	No	No	0	666	0.00	12,348
1 Dec 23	TTEK Tetra Tech	COMMON STOCK	Sell	Dispose S	No	No	162.7423	2,228	362.59 k	13,014
21 Nov 23	TTEK Tetra Tech	COMMON STOCK	Grant	Acquire A	No	No	0	1,054	0.00	15,242
21 Nov 23	TTEK Tetra Tech	RSU COMMON STOCK	Grant	Acquire A	No	No	0	425	0.00	425

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.