TETRA TECH INC NEW

Ticker: TTEK CUSIP: 88162G103 Class: EQTY

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q4 2025

Shares 123,517 Value ($000) $4,143 Avg Close $33.82 Range $31.18 - $37.75

Q3 2025

Shares 235,949 Value ($000) $7,876 Avg Close $36.35 Range $32.91 - $38.66

Q2 2025

Shares 232,374 Value ($000) $8,356 Avg Close $33.29 Range $27.27 - $36.67

Q1 2025

Shares 125,962 Value ($000) $3,684 Avg Close $33.56 Range $28.17 - $42.98

Q4 2024

Shares 181,894 Value ($000) $7,247 Avg Close $44.89 Range $39.19 - $51.20

Q3 2024

Shares 467,923 Value ($000) $22,067 Avg Close $44.50 Range $39.43 - $48.26

Q2 2024

Shares 73,675 Value ($000) $15,065 Avg Close $40.77 Range $36.50 - $44.28

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	123,517	$4,143	$33.82	$31.18 - $37.75
Q3 2025	235,949	$7,876	$36.35	$32.91 - $38.66
Q2 2025	232,374	$8,356	$33.29	$27.27 - $36.67
Q1 2025	125,962	$3,684	$33.56	$28.17 - $42.98
Q4 2024	181,894	$7,247	$44.89	$39.19 - $51.20
Q3 2024	467,923	$22,067	$44.50	$39.43 - $48.26
Q2 2024	73,675	$15,065	$40.77	$36.50 - $44.28