<SEC-DOCUMENT>0001172661-19-000537-index.html : 20190214
<SEC-HEADER>0001172661-19-000537.hdr.sgml : 20190214
<ACCEPTANCE-DATETIME>20190214075347
ACCESSION NUMBER:		0001172661-19-000537
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20190214
DATE AS OF CHANGE:		20190214

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HUDSON TECHNOLOGIES INC /NY
		CENTRAL INDEX KEY:			0000925528
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-MACHINERY, EQUIPMENT & SUPPLIES [5080]
		IRS NUMBER:				133641539
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-48635
		FILM NUMBER:		19600824

	BUSINESS ADDRESS:	
		STREET 1:		PO BOX 1541
		STREET 2:		ONE BLUE HILL PLAZA, 14TH FLOOR
		CITY:			PEARL RIVER
		STATE:			NY
		ZIP:			10965
		BUSINESS PHONE:		8457356000

	MAIL ADDRESS:	
		STREET 1:		PO BOX 1541
		STREET 2:		ONE BLUE HILL PLAZA, 14TH FLOOR
		CITY:			PEARL RIVER
		STATE:			NY
		ZIP:			10965

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	REFRIGERANT RECLAMATION INDUSTRIES INC
		DATE OF NAME CHANGE:	19940617

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ArrowMark Colorado Holdings LLC
		CENTRAL INDEX KEY:			0001483859
		IRS NUMBER:				392068140
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		100 FILLMORE STREET, SUITE 325
		CITY:			DENVER
		STATE:			CO
		ZIP:			80206
		BUSINESS PHONE:		303.398.2929

	MAIL ADDRESS:	
		STREET 1:		100 FILLMORE STREET, SUITE 325
		CITY:			DENVER
		STATE:			CO
		ZIP:			80206

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Arrowpoint Asset Management, LLC
		DATE OF NAME CHANGE:	20100211
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>arrowmark-hdsn123118a1.htm
<DESCRIPTION>SCHEDULE 13G HOLDINGS REPORT AMENDMENT
<TEXT>
Document 1 - file: arrowmark-hdsn123118a1.htm

</DOCUMENT>
</SEC-DOCUMENT>