CECO ENVIRONMENTAL CORP

Ticker: CECO CUSIP: 125141101 Class: Common Stock

DUPONT CAPITAL MANAGEMENT CORP's Holding History (CIK: 0001128251)

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

Q1 2017

Shares 36,725 Value ($000) $386 Avg Close $11.77 Range $9.60 - $14.11

Q4 2016

Shares 36,725 Value ($000) $512 Avg Close $11.85 Range $9.25 - $14.45

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2017	36,725	$386	$11.77	$9.60 - $14.11
Q4 2016	36,725	$512	$11.85	$9.25 - $14.45