0001019056-17-000184.txt : 20170214 0001019056-17-000184.hdr.sgml : 20170214 20170214162650 ACCESSION NUMBER: 0001019056-17-000184 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20161231 FILED AS OF DATE: 20170214 DATE AS OF CHANGE: 20170214 EFFECTIVENESS DATE: 20170214 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 SEC ACT: 1934 Act SEC FILE NUMBER: 028-06377 FILM NUMBER: 17609371 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 1 primary_doc.xml 13F-HR LIVE false true false 0001125725 XXXXXXXX 12-31-2016 12-31-2016 false GAGNON SECURITIES LLC

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

13F HOLDINGS REPORT 028-06377 N Susan DuMont 212-554-5000 /s/ Susan DuMont New York NY 02-14-2017 0 96 233147 INFORMATION TABLE 2 infotable.xml ACTUA CORPORATION COM 005094107 788 56261 SH SOLE 0 0 56261 AIR LEASE CORPORATION CL A 00912X302 15536 452555 SH SOLE 0 0 452555 AKAMAI TECHNOLOGIES INC COM 00971T101 1286 19286 SH SOLE 0 0 19286 ALPHA & OMEGA SEMICONDUCTOR LIMITED SHS G6331P104 10279 483263 SH SOLE 0 0 483263 AMBER ROAD INC COM 02318Y108 10466 1152632 SH SOLE 0 0 1152632 AMERESCO INC CL A 02361E108 6225 1131883 SH SOLE 0 0 1131883 ARCHER-DANIELS-MIDLAND COM 039483102 553 12116 SH SOLE 0 0 12116 ATHENAHEALTH INC COM 04685W103 10675 101503 SH SOLE 0 0 101503 ATLANTIC POWER CORPORATION COM NEW 04878Q863 340 136100 SH SOLE 0 0 136100 BEL FUSE INC CL B 077347300 279 9033 SH SOLE 0 0 9033 BENEFITFOCUS INC COM 08180D106 795 26753 SH SOLE 0 0 26753 BLACK DIAMOND INC COM 09202G101 379 70783 SH SOLE 0 0 70783 BOINGO WIRELESS INC COM 09739C102 184 15120 SH SOLE 0 0 15120 BURBERRY GROUP COM G1700D105 341 18450 SH SOLE 0 0 18450 CAMECO CORPORATION COM 13321L108 222 21195 SH SOLE 0 0 21195 CANADIAN ENERGY SERVICES COM 13566W108 3344 585507 SH SOLE 0 0 585507 CAREDX INC COM 14167L103 4849 1795844 SH SOLE 0 0 1795844 CARMAX INC COM 143130102 1604 24912 SH SOLE 0 0 24912 CASTLIGHT HEALTH INC CL B 14862Q100 6987 1411418 SH SOLE 0 0 1411418 CELGENE CORPORATION COM 151020104 229 1975 SH SOLE 0 0 1975 CHIPOTLE MEXICAN GRILL INC COM 169656105 843 2235 SH SOLE 0 0 2235 CHRISTOPHER & BANKS CORP COM 171046105 2414 1031589 SH SOLE 0 0 1031589 COACH INC SPONSORED ADR 189754104 998 28492 SH SOLE 0 0 28492 COCA COLA COMPANY COM 191216100 323 7790 SH SOLE 0 0 7790 COMMVAULT SYSTEMS INC COM 204166102 7915 153980 SH SOLE 0 0 153980 D R HORTON INC COM COM 23331A109 269 9839 SH SOLE 0 0 9839 DENA COM J1257N107 931 42519 SH SOLE 0 0 42519 DENISON MINES CORPORATION COM M4059L101 194 377302 SH SOLE 0 0 377302 DURECT CORP COM 266605104 1274 950701 SH SOLE 0 0 950701 EOG RESOURCES INC COM 26875P101 373 3693 SH SOLE 0 0 3693 EQUINIX INC COM 29444U502 7692 21521 SH SOLE 0 0 21521 ETHAN ALLEN INTERIORS INC COM 297602104 1150 31196 SH SOLE 0 0 31196 EVERBRIDGE INC COM 29978A104 4160 225488 SH SOLE 0 0 225488 EXACTEARTH LTD COM 30064C103 51 32174 SH SOLE 0 0 32174 EXXON MOBIL CORP COM 30231G102 789 8737 SH SOLE 0 0 8737 FANHUA INC SPONSORED ADR 30712A103 5161 623366 SH SOLE 0 0 623366 FIVE9 INC CL A 338307101 7969 561600 SH SOLE 0 0 561600 FOSSIL GROUP INC COM 34988V106 1281 49549 SH SOLE 0 0 49549 GENERAC HOLDINGS INC COM 368736104 1484 36430 SH SOLE 0 0 36430 GENERAL ELECTRIC CO CL A 369604103 681 21552 SH SOLE 0 0 21552 GENERAL FINANCE CORPORATION COM 369822705 12013 2164531 SH SOLE 0 0 2164531 GENTEX CORP COM 371901109 1193 60587 SH SOLE 0 0 60587 GLOBAL X URANIUM NEW ETF 37954Y871 337 24316 SH SOLE 0 0 24316 GREEN DOT CORPORATION CL A 39304D102 303 12884 SH SOLE 0 0 12884 HORNBECK OFFSHORE SERVICES COM 440543106 91 12643 SH SOLE 0 0 12643 HOVNANIAN ENTERPRISES INC CL A 442487203 442 162039 SH SOLE 0 0 162039 INPHI CORP COM 45772F107 605 13557 SH SOLE 0 0 13557 INSTRUCTURE INC COM 45781U103 385 19690 SH SOLE 0 0 19690 JOHNSON & JOHNSON COM 478160104 351 3047 SH SOLE 0 0 3047 KB HOME COM 48666K109 316 19967 SH SOLE 0 0 19967 LENNAR CORP CL A 526057104 235 5469 SH SOLE 0 0 5469 LIVEPERSON INC COM 538146101 112 14821 SH SOLE 0 0 14821 LUMBER LIQUIDATORS HOLDINGS INC COM 55003T107 9632 611958 SH SOLE 0 0 611958 MACYS INC COM 55616P104 612 17093 SH SOLE 0 0 17093 MICROCHIP TECHNOLOGY INC COM 595017104 1172 18269 SH SOLE 0 0 18269 MONSANTO CO COM 61166W101 884 8402 SH SOLE 0 0 8402 NAMIBIA RARE EARTHS IN COM 62986A105 6 148045 SH SOLE 0 0 148045 NATIONAL CINEMEDIA INC COM 635309107 783 53137 SH SOLE 0 0 53137 NAVIGATOR HOLDINGS LTD SHS Y62132108 5657 608246 SH SOLE 0 0 608246 NEOVASC INC COM 64065J106 4988 2883426 SH SOLE 0 0 2883426 NETGEAR INC COM 64111Q104 1303 23979 SH SOLE 0 0 23979 NEW RELIC INC COM 64829B100 5263 186302 SH SOLE 0 0 186302 NINTENDO CO LTD SPONSORED ADR 654445303 2047 77840 SH SOLE 0 0 77840 NIVS INTELLIMEDIA TECHNOLOGYGROUP INC COM 62914U108 0 40111 SH SOLE 0 0 40111 NOVADAQ TECHNOLOGIES INC COM 66987G102 1722 242895 SH SOLE 0 0 242895 PAIN THERAPEUTICS INC COM 69562K100 26 45570 SH SOLE 0 0 45570 PFIZER INC COM 717081103 300 9230 SH SOLE 0 0 9230 POWER SOLUTIONS INTERNATIONAL INC COM NEW 73933G202 3128 417010 SH SOLE 0 0 417010 PROFOUND MEDICAL CORP COM 74319B106 1916 2294410 SH SOLE 0 0 2294410 RED HAT INC COM 756577102 9925 142395 SH SOLE 0 0 142395 ROYAL CARIBBEAN CRUISES LTD COM V7780T103 1133 13806 SH SOLE 0 0 13806 ROYAL WOLF COM Q8153C103 91 86143 SH SOLE 0 0 86143 RTI SURGICAL INC COM 74975N105 850 261538 SH SOLE 0 0 261538 RUDOLPH TECHNOLOGIES INC COM 781270103 15449 661647 SH SOLE 0 0 661647 SONIC CORP COM 835451105 281 10596 SH SOLE 0 0 10596 SORRENTO THERAPEUTICS INC. COM NEW 83587F202 54 11116 SH SOLE 0 0 11116 STEALTHGAS INC COM USD0.01 SHS Y81669106 320 94706 SH SOLE 0 0 94706 SUNCOR ENERGY INC COM 867224107 7170 219340 SH SOLE 0 0 219340 SYNCHRONY FINANCIAL COM 87165B103 528 14544 SH SOLE 0 0 14544 SYSMEX CORPORATION COM 87184P109 542 9342 SH SOLE 0 0 9342 TAILORED BRANDS INC COM 87403A107 950 37197 SH SOLE 0 0 37197 TALEND S.A. COM 874224207 2852 128451 SH SOLE 0 0 128451 TANGOE INC COM 87582Y108 931 118207 SH SOLE 0 0 118207 TITAN PHARMACEUTICALS INC COM 888314101 144 36072 SH SOLE 0 0 36072 URANIUM PARTICIPATION CORPORATION COM 917017105 39 13852 SH SOLE 0 0 13852 UR-ENERGY COM 91688R108 182 343084 SH SOLE 0 0 343084 VANDA PHARMACEUTICALS INC COM 921659108 293 18399 SH SOLE 0 0 18399 WESTROCK CO COM 96145D105 332 6539 SH SOLE 0 0 6539 JOHN WILEY & SONS INC CL A 968223206 665 12198 SH SOLE 0 0 12198 WORLD WRESTLING ENTERTAINMENT INC CL A 98156Q108 1335 72534 SH SOLE 0 0 72534 WPX ENERGY INC COM 98212B103 5660 388453 SH SOLE 0 0 388453 WPX ENERGY INC CLA A PRE 98212B202 349 5315 SH SOLE 0 0 5315 XACTLY CORPORATION COM 98386L101 3652 331966 SH SOLE 0 0 331966 XEROX CORP COM 984121103 416 47687 SH SOLE 0 0 47687 XTREME DRILLING & COIL SVCS CO COM 98419V100 160 76620 SH SOLE 0 0 76620 ZOGENIX INC COM NEW 98978L204 1709 140690 SH SOLE 0 0 140690