WILLDAN GROUP INC

Ticker: WLDN CUSIP: 96924N100 Class: Common Stock

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q4 2025

Shares 210,586 Value ($000) $21,829 Avg Close $98.45 Range $82.67 - $115.93

Q3 2025

Shares 123,821 Value ($000) $11,972 Avg Close $94.65 Range $62.16 - $121.00

Q3 2019

Shares 238,374 Value ($000) $8,362 Avg Close $35.68 Range $31.15 - $39.96

Q2 2019

Shares 227,862 Value ($000) $8,488 Avg Close $36.15 Range $30.63 - $40.70

Q1 2019

Shares 230,604 Value ($000) $8,548 Avg Close $35.58 Range $32.22 - $39.19

Q4 2018

Shares 241,237 Value ($000) $8,438 Avg Close $34.22 Range $29.06 - $39.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	210,586	$21,829	$98.45	$82.67 - $115.93
Q3 2025	123,821	$11,972	$94.65	$62.16 - $121.00
Q3 2019	238,374	$8,362	$35.68	$31.15 - $39.96
Q2 2019	227,862	$8,488	$36.15	$30.63 - $40.70
Q1 2019	230,604	$8,548	$35.58	$32.22 - $39.19
Q4 2018	241,237	$8,438	$34.22	$29.06 - $39.00