CECO ENVIRONMENTAL CORP

Ticker: CECO CUSIP: 125141101 Class: Common Stock

SUMMIT SECURITIES GROUP LLC's Holding History (CIK: 0001531593)

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

Q3 2025

Shares 156 Value ($000) $8 Avg Close $42.33 Range $28.26 - $52.46

Q2 2025

Shares 4,074 Value ($000) $115 Avg Close $24.90 Range $17.57 - $30.56

Q1 2025

Shares 810 Value ($000) $18 Avg Close $26.66 Range $22.33 - $33.42

Q1 2024

Shares 204 Value ($000) $0 Avg Close $20.61 Range $18.50 - $24.43

Q3 2013

Shares 800 Value ($000) $11 Avg Close $11.80 Range $10.63 - $12.79

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	156	$8	$42.33	$28.26 - $52.46
Q2 2025	4,074	$115	$24.90	$17.57 - $30.56
Q1 2025	810	$18	$26.66	$22.33 - $33.42
Q1 2024	204	$0	$20.61	$18.50 - $24.43
Q3 2013	800	$11	$11.80	$10.63 - $12.79