CECO ENVIRONMENTAL CORP

Ticker: CECO CUSIP: 125141101 Class: Common Stock

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

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

Q4 2025

Shares 106 Value ($000) $6 Avg Close $53.49 Range $42.82 - $63.98

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	106	$6	$53.49	$42.82 - $63.98