TETRA TECH INC NEW

Ticker: TTEK CUSIP: 88162G103 Class: EQTY

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 1,156 Value ($000) $39 Avg Close $33.82 Range $31.18 - $37.75

Q3 2025

Shares 18,471 Value ($000) $617 Avg Close $36.35 Range $32.91 - $38.66

Q4 2021

Shares 100 Value ($000) $17 Avg Close $34.44 Range $29.39 - $38.58

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,156	$39	$33.82	$31.18 - $37.75
Q3 2025	18,471	$617	$36.35	$32.91 - $38.66
Q4 2021	100	$17	$34.44	$29.39 - $38.58