0001019056-17-000770.txt : 20171114 0001019056-17-000770.hdr.sgml : 20171114 20171114172543 ACCESSION NUMBER: 0001019056-17-000770 CONFORMED SUBMISSION TYPE: 13F-HR/A PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20170930 FILED AS OF DATE: 20171114 DATE AS OF CHANGE: 20171114 EFFECTIVENESS DATE: 20171114 FILER: COMPANY DATA: COMPANY CONFORMED NAME: GAGNON SECURITIES LLC CENTRAL INDEX KEY: 0001125725 IRS NUMBER: 134087058 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR/A SEC ACT: 1934 Act SEC FILE NUMBER: 028-06377 FILM NUMBER: 171203118 BUSINESS ADDRESS: STREET 1: 1370 AVENUE OF THE AMERICAS STREET 2: 24TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10019 BUSINESS PHONE: 2125545000 MAIL ADDRESS: STREET 1: 1370 AVENUE OF THE AMERICAS STREET 2: 24TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10019 13F-HR/A 1 primary_doc.xml 13F-HR/A LIVE false true false 0001125725 XXXXXXXX 09-30-2017 09-30-2017 true 1 RESTATEMENT false GAGNON SECURITIES LLC

1370 Avenue of the Americas 24th Floor New York NY 10019

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