HUDSON TECHNOLOGIES INC

Ticker: HDSN CUSIP: 444144109 Class: Common Stock

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

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

Q4 2025

Shares 1,260 Value ($000) $9 Avg Close $7.88 Range $6.45 - $9.85

Q3 2025

Shares 1,231 Value ($000) $12 Avg Close $9.39 Range $7.98 - $10.52

Q2 2025

Shares 860 Value ($000) $7 Avg Close $6.86 Range $5.11 - $8.37

Q3 2024

Shares 30 Value ($000) $0 Avg Close $8.27 Range $6.94 - $9.28

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,260	$9	$7.88	$6.45 - $9.85
Q3 2025	1,231	$12	$9.39	$7.98 - $10.52
Q2 2025	860	$7	$6.86	$5.11 - $8.37
Q3 2024	30	$0	$8.27	$6.94 - $9.28