COSCIENS BIOPHARMA INC

Ticker: CSCIF CUSIP: 22112H101 Class: COM

NATIONAL BANK OF CANADA /FI/'s Holding History (CIK: 0000926171)

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

Q2 2025

Shares 1,149 Value ($000) $4 Avg Close $3.33 Range $2.30 - $3.90

Q1 2025

Shares 1,122 Value ($000) $3 Avg Close $2.95 Range $1.96 - $4.61

Q4 2024

Shares 5,920 Value ($000) $16 Avg Close $3.26 Range $2.50 - $3.99

Q3 2024

Shares 5,796 Value ($000) $22 Avg Close $5.10 Range $3.49 - $7.54

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	1,149	$4	$3.33	$2.30 - $3.90
Q1 2025	1,122	$3	$2.95	$1.96 - $4.61
Q4 2024	5,920	$16	$3.26	$2.50 - $3.99
Q3 2024	5,796	$22	$5.10	$3.49 - $7.54