HUDSON TECHNOLOGIES INC /NY — Director's Dealing 2015

May 12, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: HUDSON TECHNOLOGIES INC /NY (HDSN)
CIK: 0000925528
Period of Report: 2015-05-08

Reporting Person: Parrillo Richard (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-05-08	Common Stock	P	55498	$3.92	Acquired	82098	Direct
2015-05-11	Common Stock	P	44502	$4.01	Acquired	126600	Direct

Footnotes

F1: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $3.88 to $4.05 per share inclusive. The reporting person undertakes to provide Hudson Technologies, Inc., any security holder of Hudson Technologies, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnotes (1) and (3) to this Form 4.

F2: Includes 26,600 shares that may be purchased pursuant to stock options.

F3: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $3.98 to $4.04 per share inclusive.