HACKETT GROUP INC

Ticker: HCKT CUSIP: 404609109 Class: Common Stock

Optiver Holding B.V.'s Holding History (CIK: 0001859606)

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

Q4 2025

Shares 168 Value ($000) $3 Avg Close $18.97 Range $17.53 - $20.68

Q3 2025

Shares 168 Value ($000) $3 Avg Close $21.84 Range $18.84 - $26.09

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	168	$3	$18.97	$17.53 - $20.68
Q3 2025	168	$3	$21.84	$18.84 - $26.09