0001019056-16-001071.txt : 20160216
0001019056-16-001071.hdr.sgml : 20160215
20160216115109
ACCESSION NUMBER: 0001019056-16-001071
CONFORMED SUBMISSION TYPE: 13F-HR
PUBLIC DOCUMENT COUNT: 2
CONFORMED PERIOD OF REPORT: 20151231
FILED AS OF DATE: 20160216
DATE AS OF CHANGE: 20160216
EFFECTIVENESS DATE: 20160216
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: 161425064
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
12-31-2015
12-31-2015
false
GAGNON SECURITIES LLC
1370 Avenue of the Americas
24th Floor
New York
NY
10019
13F HOLDINGS REPORT
028-06377
N
Susan DuMont
Financial Operations Principal
212-554-5000
/s/ Susan DuMont
New York
NY
02-16-2016
0
86
218359
INFORMATION TABLE
2
infotable.xml
ACTUA CORPORATION
COM
005094107
636
55576
SH
SOLE
0
0
55576
AIR LEASE CORPORATION
CL A
00912X302
15534
463973
SH
SOLE
0
0
463973
AKAMAI TECHNOLOGIES INC
COM
00971T101
985
18717
SH
SOLE
0
0
18717
ALPHA & OMEGA SEMICONDUCTOR LIMITED
SHS
G6331P104
8163
888283
SH
SOLE
0
0
888283
AMBER ROAD INC
COM
02318Y108
6117
1201681
SH
SOLE
0
0
1201681
AMERESCO INC
CL A
02361E108
7623
1219645
SH
SOLE
0
0
1219645
ANADIGICS INC
COM
032515108
68
106577
SH
SOLE
0
0
106577
APPLE INC
COM
037833100
1137
10806
SH
SOLE
0
0
10806
ARCHER-DANIELS-MIDLAND
COM
039483102
393
10702
SH
SOLE
0
0
10702
ATHENAHEALTH INC
COM
04685W103
16060
99773
SH
SOLE
0
0
99773
ATLANTIC POWER CORPORATION
COM NEW
04878Q863
571
289965
SH
SOLE
0
0
289965
BEL FUSE INC
CL B
077347300
295
17088
SH
SOLE
0
0
17088
BENEFITFOCUS INC
COM
08180D106
668
18345
SH
SOLE
0
0
18345
BLACK DIAMOND INC
COM
09202G101
307
69450
SH
SOLE
0
0
69450
BOINGO WIRELESS INC
COM
09739C102
100
15050
SH
SOLE
0
0
15050
CALLWAVE INC
COM
13126N200
0
19205
SH
SOLE
0
0
19205
CAREDX INC
COM
14167L103
7542
1178362
SH
SOLE
0
0
1178362
CARMAX INC
COM
143130102
1042
19301
SH
SOLE
0
0
19301
CASTLIGHT HEALTH INC
CL B
14862Q100
4137
968936
SH
SOLE
0
0
968936
CELGENE CORP
COM
151020104
240
2008
SH
SOLE
0
0
2008
CHRISTOPHER & BANKS CORP
COM
171046105
1396
845937
SH
SOLE
0
0
845937
CNINSURE INC
SPONSORED ADR
18976M103
10521
1133773
SH
SOLE
0
0
1133773
COACH INC
COM
189754104
935
28554
SH
SOLE
0
0
28554
COCA COLA COMPANY
COM
191216100
891
20745
SH
SOLE
0
0
20745
COM DEV INTERNATIONAL LTD
COM
199907106
386
88539
SH
SOLE
0
0
88539
COMMVAULT SYSTEMS INC
COM
204166102
6058
153959
SH
SOLE
0
0
153959
CONSTANT CONTACT INC
COM
210313102
5598
191466
SH
SOLE
0
0
191466
D R HORTON INC
COM
23331A109
397
12405
SH
SOLE
0
0
12405
DENISON MINES CORP
COM
G10082140
378
760013
SH
SOLE
0
0
760013
DURECT CORP
COM
266605104
1799
813890
SH
SOLE
0
0
813890
EQUINIX INC
COM
29444U700
15059
49797
SH
SOLE
0
0
49797
ETHAN ALLEN INTERIORS INC
COM
297602104
977
35126
SH
SOLE
0
0
35126
EXXON MOBIL CORP
COM
30231G102
413
5294
SH
SOLE
0
0
5294
FOSSIL GROUP INC
COM
34988V106
945
25841
SH
SOLE
0
0
25841
FXCM INC
CL A
302693106
264
15771
SH
SOLE
0
0
15771
GENERAC HOLDINGS INC
COM
368736104
999
33563
SH
SOLE
0
0
33563
GENERAL ELECTRIC CO
COM
369604103
675
21672
SH
SOLE
0
0
21672
GENERAL FINANCE CORPORATION
COM
369822101
8906
2232180
SH
SOLE
0
0
2232180
GENTEX CORP
COM
371901109
1007
62883
SH
SOLE
0
0
62883
GREEN DOT CORPORATION
CL A
39304D102
338
20577
SH
SOLE
0
0
20577
HEALTH INSURANCE INNOVATIONS INC.
CL A
42225K106
88
13206
SH
SOLE
0
0
13206
HERITAGE CRYSTAL CLEAN INC
COM
42726M106
1256
118521
SH
SOLE
0
0
118521
HORNBECK OFFSHORE SERVICES
COM
440543106
111
11210
SH
SOLE
0
0
11210
HOVNANIAN ENTERPRISES INC
CL A
442487203
295
163002
SH
SOLE
0
0
163002
INPHI CORP
COM
45772F107
925
34229
SH
SOLE
0
0
34229
JOHNSON & JOHNSON
COM
478160104
329
3206
SH
SOLE
0
0
3206
KB HOME
COM
48666K109
250
20285
SH
SOLE
0
0
20285
LENNAR CORP
CL A
526057104
271
5548
SH
SOLE
0
0
5548
LIVEPERSON INC
COM
538146101
100
14821
SH
SOLE
0
0
14821
LUMBER LIQUIDATORS HOLDINGS INC
COM
55003T107
4424
254844
SH
SOLE
0
0
254844
MARKETO INC
COM
57063L107
6734
234569
SH
SOLE
0
0
234569
MATTEL INC
COM
577081102
273
10060
SH
SOLE
0
0
10060
MICROCHIP TECHNOLOGY INC
COM
595017104
822
17652
SH
SOLE
0
0
17652
MICRON TECHNOLOGY INC
CALL
595112903
175
12332
SH
Call
SOLE
0
0
12332
MONSANTO CO
COM
61166W101
440
4465
SH
SOLE
0
0
4465
NAMIBIA RARE EARTHS INC
COM
62986A105
20
691625
SH
SOLE
0
0
691625
NATIONAL CINEMEDIA INC
COM
635309107
1088
69239
SH
SOLE
0
0
69239
NAVIGATOR HOLDINGS LTD
SHS
Y62132108
5151
377364
SH
SOLE
0
0
377364
NEOVASC INC
COM
64065J106
8752
1944814
SH
SOLE
0
0
1944814
NETGEAR INC
COM
64111Q104
1297
30950
SH
SOLE
0
0
30950
NETSUITE INC
COM
64118Q107
4740
56011
SH
SOLE
0
0
56011
NINTENDO CO LTD
SPONSORED ADR
654445303
1514
86938
SH
SOLE
0
0
86938
NOVADAQ TECHNOLOGIES INC
COM
66987G102
1262
99062
SH
SOLE
0
0
99062
OVASCIENCE INC
COM
69014Q101
264
27006
SH
SOLE
0
0
27006
PAIN THERAPEUTICS INC
COM
69562K100
110
62799
SH
SOLE
0
0
62799
POWER SOLUTIONS INTERNATIONAL INC
COM NEW
73933G202
5712
312987
SH
SOLE
0
0
312987
RED HAT INC
COM
756577102
15977
192931
SH
SOLE
0
0
192931
ROYAL CARIBBEAN CRUISES LTD
COM
V7780T103
1504
14856
SH
SOLE
0
0
14856
RTI SURGICAL INC
COM
74975N105
862
217120
SH
SOLE
0
0
217120
RUDOLPH TECHNOLOGIES INC
COM
781270103
10990
772871
SH
SOLE
0
0
772871
SORRENTO THERAPEUTICS INC.
COM NEW
83587F202
97
11131
SH
SOLE
0
0
11131
STEALTHGAS INC
COM
Y81669106
330
96207
SH
SOLE
0
0
96207
STRATEGIC OIL & GAS LTD
SPONSORED ADR
86277F101
25
409002
SH
SOLE
0
0
409002
SYNCHRONY FINANCIAL
COM
87165B103
354
11645
SH
SOLE
0
0
11645
TANGOE INC
COM
87582Y108
5762
686727
SH
SOLE
0
0
686727
TITAN PHARMACEUTICALS INC
COM
888314101
278
62592
SH
SOLE
0
0
62592
TIVO INC
COM
888706108
341
39501
SH
SOLE
0
0
39501
UBIQUITI NETWORKS INC COM
COM
90347A100
372
11740
SH
SOLE
0
0
11740
URANIUM PARTICIPATION CORPORATION
COM
917017105
358
97068
SH
SOLE
0
0
97068
UR-ENERGY
COM
91688R108
575
884657
SH
SOLE
0
0
884657
VANDA PHARMACEUTICALS INC
COM
921659108
383
41139
SH
SOLE
0
0
41139
WILEY JOHN & SONS INC
CL A
968223206
505
11222
SH
SOLE
0
0
11222
WORLD WRESTLING ENTERTAINMENT INC
CL A
98156Q108
1545
86579
SH
SOLE
0
0
86579
WPX ENERGY INC
COM
98212B103
92
15975
SH
SOLE
0
0
15975
XTREME DRILLING & COIL SVCS CORP
COM
98419V100
139
112886
SH
SOLE
0
0
112886
ZOGENIX INC
COM
98978L105
1907
129401
SH
SOLE
0
0
129401