HUDSON TECHNOLOGIES INC /NY — Director's Dealing 2005

Dec 14, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: HUDSON TECHNOLOGIES INC /NY (HDSN)
CIK: 0000925528
Period of Report: 2005-12-12

Reporting Person: HARKINS CHARLES F (Vice President Sales)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-12-12	Common Stock	M	2343	$0.87	Acquired	92734	Direct
2005-12-12	Common Stock	M	1171	$0.83	Acquired	92735	Direct
2005-12-12	Common Stock	M	11886	$1.13	Acquired	92734	Direct
2005-12-12	Common Stock	S	15400	$2.08	Disposed	77334	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2005-12-12	Employee Stock Option - Right to Buy	$1.13	M	11886	Disposed	2014-03-05	Common Stock (11886)	Direct
2005-12-12	Employee Stock Option - Right to Buy	$0.83	M	1171	Disposed	2015-07-08	Common Stock (1171)	Direct
2005-12-12	Employee Stock Option - Right to Buy	$0.87	M	2343	Disposed	2015-04-01	Common Stock (2343)	Direct

Footnotes

F1: Represents average price of all transactions.

F2: Options vest quarterly in eight equal monthly installments commencing 4/1/04.

F3: Represents vested balance as of transaction date.

F4: Options vest quarterly in eight equal installments commencing 10/1/05. Options disposed of represent total amount vested as of transaction date.

F5: Options vest quarterly in eight equal installments commencing 7/1/05. Options disposed of represent total amount vested as of transaction date.