ORION ENGINEERED CARBONS S A

Ticker: OEC CUSIP: L72967109 Class: Common Stock

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

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

Q4 2025

Shares 214 Value ($000) $1 Avg Close $5.42 Range $4.34 - $7.58

Q3 2025

Shares 214 Value ($000) $2 Avg Close $10.11 Range $7.32 - $11.62

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	214	$1	$5.42	$4.34 - $7.58
Q3 2025	214	$2	$10.11	$7.32 - $11.62