As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

 3/15/19  Hudson Technologies Inc./NY       10-K       12/31/18   86:11M                                    Toppan Merrill/FA        
 1/15/19  Mandracchia Stephen P             5          Officer²    1:5K   Hudson Technologies Inc./NY                                

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¹	Filing/Form Types:  -K
	5	Annual Statement of Changes in Beneficial Ownership of Securities by an Insider — Form 5 { The Filer is an Insider² of the Issuer }.
	10-K	Annual Report — Form 10-K.
²	Insider:  The Filer is a Director, Officer, 10% Owner and/or Other “insider” of the Issuer.