X0306 4 2016-09-06 0 0000925528 HUDSON TECHNOLOGIES INC /NY HDSN 0001478411 Krishnamurti Nat C/O HUDSON TECHNOLOGIES, INC. PO BOX 1541, ONE BLUE HILL PLAZA PEARL RIVER NY 10965 0 1 0 0 VP, Chief Financial Officer Common Stock 2016-09-06 4 A 0 14000 0 A 14000 D Common Stock 2016-09-06 4 S 0 5218 6.07 D 8782 D The reported transaction represents a 14,000 common share grant pursuant to the employment of the reporting person, such shares set aside and issued under the Company's 2008 Stock Incentive Plan and approved by the Company's Board of Directors The reported transaction reflects sales made by the reporting person for the purpose of making payment of tax liability resulting from the grant of 14,000 shares of the Company's common stock in connection with the commencement of employment of the reporting person. Sales reported reflect average selling price. Selling price for all shares sold during the day ranged from $6.051 per share to $6.081 per share. Nat Krishnamurti 2016-09-07