DORMAN PRODUCTS INC

Ticker: DORM CUSIP: 258278100 Class: EQTY

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

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

Q4 2025

Shares 41 Value ($000) $5 Avg Close $134.99 Range $122.20 - $164.00

Q3 2025

Shares 121 Value ($000) $19 Avg Close $143.45 Range $117.86 - $166.89

Q2 2025

Shares 93 Value ($000) $11 Avg Close $121.60 Range $106.95 - $132.91

Q1 2025

Shares 77 Value ($000) $9 Avg Close $127.56 Range $117.50 - $135.69

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	41	$5	$134.99	$122.20 - $164.00
Q3 2025	121	$19	$143.45	$117.86 - $166.89
Q2 2025	93	$11	$121.60	$106.95 - $132.91
Q1 2025	77	$9	$127.56	$117.50 - $135.69