X0306 4 2018-09-05 0 0000925528 HUDSON TECHNOLOGIES INC /NY HDSN 0001478411 Krishnamurti Nat C/O HUDSON TECHNOLOGIES PO BOX 1541, ONE BLUE HILL PLAZA PEARL RIVER NY 10965 0 1 0 0 VP, Chief Financial Officer Common Stock 2018-09-05 4 A 0 3000 0 A 14782 D The reported transaction represents a 3,000 common stock grant pursuant to the employment of the reporting person, such shares set aside and issued under the Company's 2014 Stock Incentive Plan and approved by the Company's Board of Directors. Nat Krishnamurti 2018-09-07