HUDSON TECHNOLOGIES INC /NY — Director's Dealing 2015

May 8, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: HUDSON TECHNOLOGIES INC /NY (HDSN)
CIK: 0000925528
Period of Report: 2015-05-06

Reporting Person: ZUGIBE KEVIN J (Director, Chairman, Chief Executive Off)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-05-06	Common Stock	S	145300	$4.55	Disposed	4763128	Direct
2015-05-07	Common Stock	S	100000	$4.08	Disposed	4663128	Direct
2015-05-08	Common Stock	M	18750	$0.83	Acquired	4663128	Direct
2015-05-08	Common Stock	M	18750	$2.15	Acquired	4663128	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-05-08	Stock Option (right to buy)	$0.83	M	18750	Disposed	2015-07-08	Common Stock (18750)	Direct
2015-05-08	Stock Option (right to buy)	$2.15	M	18750	Disposed	2015-09-30	Common Stock (18750)	Direct

Footnotes

F1: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $4.4004 to $4.6516 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 sold at each separate price within the range set forth in footnote (1) to this Form 4,

F2: Includes 758,550 shares which may be purchased pursuant to stock options.

F3: Includes 739,800 shares which may be purchased pursuant to stock options.

F4: Includes 721,050 shares which may be purchased pursuant to stock options.