HUDSON TECHNOLOGIES INC

Ticker: HDSN CUSIP: 444144109 Class: Common Stock

DELPHI MANAGEMENT INC /MA/'s Holding History (CIK: 0000767684)

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

Q2 2013

Shares 39,773 Value ($000) $127 Avg Close $3.65 Range $3.11 - $4.45

Q1 2013

Shares 39,773 Value ($000) $161 Avg Close $4.10 Range $3.59 - $5.04

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2013	39,773	$127	$3.65	$3.11 - $4.45
Q1 2013	39,773	$161	$4.10	$3.59 - $5.04