HUDSON TECHNOLOGIES INC

Ticker: HDSN CUSIP: 444144109 Class: Common Stock

Royal Fund Management, LLC's Holding History (CIK: 0001810099)

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

Q1 2018

Shares 500 Value ($000) $2 Avg Close $5.89 Range $4.39 - $6.98

Q4 2017

Shares 500 Value ($000) $3 Avg Close $6.09 Range $5.40 - $8.02

Q3 2017

Shares 500 Value ($000) $3 Avg Close $8.66 Range $7.58 - $10.40

Q2 2017

Shares 500 Value ($000) $4 Avg Close $7.65 Range $6.32 - $8.93

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	500	$2	$5.89	$4.39 - $6.98
Q4 2017	500	$3	$6.09	$5.40 - $8.02
Q3 2017	500	$3	$8.66	$7.58 - $10.40
Q2 2017	500	$4	$7.65	$6.32 - $8.93