HUDSON TECHNOLOGIES INC

Ticker: HDSN CUSIP: 444144109 Class: Common Stock

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q4 2023

Shares 183,779 Value ($000) $2,479 Avg Close $12.91 Range $11.34 - $14.14

Q1 2017

Shares 594,972 Value ($000) $3,927 Avg Close $7.28 Range $6.02 - $8.28

Q4 2016

Shares 748,023 Value ($000) $5,992 Avg Close $7.06 Range $5.55 - $8.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2023	183,779	$2,479	$12.91	$11.34 - $14.14
Q1 2017	594,972	$3,927	$7.28	$6.02 - $8.28
Q4 2016	748,023	$5,992	$7.06	$5.55 - $8.50