CECO ENVIRONMENTAL CORP

Ticker: CECO CUSIP: 125141101 Class: Common Stock

Portolan Capital Management, LLC's Holding History (CIK: 0001350290)

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

Q3 2023

Shares 163,953 Value ($000) $2,618 Avg Close $13.69 Range $11.46 - $16.63

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2023	163,953	$2,618	$13.69	$11.46 - $16.63