WILLDAN GROUP INC

Ticker: WLDN CUSIP: 96924N100 Class: Common Stock

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

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

Q4 2025

Shares 90 Value ($000) $9 Avg Close $98.45 Range $82.67 - $115.93

Q3 2025

Shares 5,513 Value ($000) $533 Avg Close $94.65 Range $62.16 - $121.00

Q2 2025

Shares 100 Value ($000) $6 Avg Close $47.69 Range $36.43 - $63.24

Q1 2025

Shares 154 Value ($000) $6 Avg Close $36.98 Range $30.43 - $43.34

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	90	$9	$98.45	$82.67 - $115.93
Q3 2025	5,513	$533	$94.65	$62.16 - $121.00
Q2 2025	100	$6	$47.69	$36.43 - $63.24
Q1 2025	154	$6	$36.98	$30.43 - $43.34