0001019056-20-000563.txt : 20201112
0001019056-20-000563.hdr.sgml : 20201112
20201112161045
ACCESSION NUMBER: 0001019056-20-000563
CONFORMED SUBMISSION TYPE: 13F-HR
PUBLIC DOCUMENT COUNT: 2
CONFORMED PERIOD OF REPORT: 20200930
FILED AS OF DATE: 20201112
DATE AS OF CHANGE: 20201112
EFFECTIVENESS DATE: 20201112
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: 201306757
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
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false
true
false
0001125725
XXXXXXXX
09-30-2020
09-30-2020
false
GAGNON SECURITIES LLC
1370 Avenue of the Americas
24th Floor
New York
NY
10019
13F HOLDINGS REPORT
028-06377
N
Lisa Ferrante
Chief Compliance Officer
212-554-5000
/s/ Lisa Ferrante
New York
NY
11-12-2020
0
100
468977
INFORMATION TABLE
2
infotable.xml
AIR LEASE CORP
CL A
00912X302
26569
903102
SH
SOLE
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0
903102
AIR LEASE CORP
PFD
00912X500
2543
109225
SH
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0
0
109225
AKAMAI TECHNOLOGIES INC
COM
00971T101
2483
22463
SH
SOLE
0
0
22463
ALPHA AND OMEGA SEMICONDUCTOR
SHS
G6331P104
10310
804179
SH
SOLE
0
0
804179
AMERESCO INC
CL A
02361E108
21118
632272
SH
SOLE
0
0
632272
APOLLO ENDOSURGERY INC
COM
03767D108
1763
1043082
SH
SOLE
0
0
1043082
APTOSE BIOSCIENCES INC
COM NEW
03835T200
504
83984
SH
SOLE
0
0
83984
ASTON MARTIN LAGONDA GBLHLDGS PLC
COM
G05873107
11
16678
SH
SOLE
0
0
16678
AT&T INC
COM
00206R102
1189
41716
SH
SOLE
0
0
41716
BIOLIFE SOLUTIONS INC
COM NEW
09062W204
11758
406299
SH
SOLE
0
0
406299
BLACKLINE INC
COM
09239B109
16293
181780
SH
SOLE
0
0
181780
BLUE PRISM GROUP PLC
COM NEW
G1193C101
322
18689
SH
SOLE
0
0
18689
CAREDX INC
COM
14167L103
41053
1082043
SH
SOLE
0
0
1082043
CARETRUST REIT INC
COM
14174T107
3727
209450
SH
SOLE
0
0
209450
CARMAX INC
COM
143130102
10980
119465
SH
SOLE
0
0
119465
CASTLIGHT HEALTH INC
CL B
14862Q100
3429
3034926
SH
SOLE
0
0
3034926
CELCUITY INC
COM
15102K100
2106
363149
SH
SOLE
0
0
363149
CES ENERGY SOLUTIONS CORP
COM
15713J104
55
93792
SH
SOLE
0
0
93792
CHEESECAKE FACTORY INC
COM
163072101
758
27326
SH
SOLE
0
0
27326
CHEGG INC
COM
163092109
382
5349
SH
SOLE
0
0
5349
CHEMBIO DIAGNOSTICS INC
COM NEW
163572209
199
40851
SH
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0
0
40851
CHIPOTLE MEXICAN GRILL INC
COM
169656105
6077
4886
SH
SOLE
0
0
4886
CM LIFE SCIENCES INC
UNIT 9/1/2025
18978W208
4756
454204
SH
SOLE
0
0
454204
CNFINANCE HLDGS LTD
SPON ADS
18979T105
1103
347970
SH
SOLE
0
0
347970
CORE LABORATORIES NV
COM
N22717107
155
10161
SH
SOLE
0
0
10161
DENISON MINES CORP
COM
248356107
147
360926
SH
SOLE
0
0
360926
DR HORTON INC
COM
23331A109
275
3638
SH
SOLE
0
0
3638
DURECT CORP
COM
266605104
1729
1011232
SH
SOLE
0
0
1011232
EHEALTH INC
COM
28238P109
301
3813
SH
SOLE
0
0
3813
ENERGY TRANSFER LP
COM UT LTD PTN
29273V100
146
26987
SH
SOLE
0
0
26987
ENSIGN GROUP INC
COM
29358P101
23468
411281
SH
SOLE
0
0
411281
ENTERPRISE PRODS PARTNERS L P
COM
293792107
9141
578925
SH
SOLE
0
0
578925
EQUINIX INC
COM
29444U700
12651
16643
SH
SOLE
0
0
16643
ETSY INC
COM
29786A106
260
2134
SH
SOLE
0
0
2134
EVERBRIDGE INC
COM
29978A104
11794
93808
SH
SOLE
0
0
93808
EXXON MOBIL CORP
COM
30231G102
632
18400
SH
SOLE
0
0
18400
FACEBOOK INC
CL A
30303M102
221
843
SH
SOLE
0
0
843
FIVE9 INC
COM
338307101
17745
136835
SH
SOLE
0
0
136835
FLEXION THERAPEUTICS INC
COM
33938J106
2052
197082
SH
SOLE
0
0
197082
GENERAC HLDGS INC
COM
368736104
2714
14014
SH
SOLE
0
0
14014
GENERAL FIN CORP DEL
COM
369822101
14138
2233485
SH
SOLE
0
0
2233485
GENERAL FIN CORP DEL
PFD
369822507
4565
44794
SH
SOLE
0
0
44794
GENTEX CORP
COM
371901109
1100
42737
SH
SOLE
0
0
42737
INPHI CORP
COM
45772F107
822
7325
SH
SOLE
0
0
7325
INTUITIVE SURGICAL INC
COM NEW
46120E602
15840
22325
SH
SOLE
0
0
22325
IROBOT CORP
COM
462726100
10869
143197
SH
SOLE
0
0
143197
WILEY JOHN & SONS INC
CL A
968223206
352
11085
SH
SOLE
0
0
11085
JOHNSON & JOHNSON
COM
478160104
558
3750
SH
SOLE
0
0
3750
KB HOME
COM
48666K109
271
7056
SH
SOLE
0
0
7056
KRAFT HEINZ CO
COM
500754106
289
9655
SH
SOLE
0
0
9655
LENNAR CORP
CL A
526057104
272
3336
SH
SOLE
0
0
3336
LGI HOMES INC
COM
50187T106
268
2308
SH
SOLE
0
0
2308
LIVEPERSON INC
COM
538146101
532
10231
SH
SOLE
0
0
10231
LUMBER LIQUIDATORS HLDGS INC
COM
55003T107
20320
921544
SH
SOLE
0
0
921544
MACYS INC
COM
55616P104
181
31834
SH
SOLE
0
0
31834
MALLINCKRODT PUB LTD CO
SHS
G5785G107
142
145391
SH
SOLE
0
0
145391
MARVELL TECHNOLOGY GROUP LTD
ORD
G5876H105
558
14045
SH
SOLE
0
0
14045
MERCK & CO. INC
COM
58933Y105
4162
50176
SH
SOLE
0
0
50176
MICROCHIP TECHNOLOGY INC.
COM
595017104
1031
10035
SH
SOLE
0
0
10035
MODEL N INC
COM
607525102
211
5980
SH
SOLE
0
0
5980
NAVIGATOR HOLDINGS LTD
SHS
Y62132108
14029
1678074
SH
SOLE
0
0
1678074
NCS MULTISTAGE HLDGS INC
COM
628877102
51
85482
SH
SOLE
0
0
85482
NEW RELIC INC
COM
64829B100
11871
210635
SH
SOLE
0
0
210635
NEXTIER OILFIELD SOLUTIONS
COM
65290C105
415
224470
SH
SOLE
0
0
224470
NINTENDO
SPONSORED ADR
654445303
1933
27351
SH
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NIVS INTELLIMEDIA TECHNOLOGYG
COM
62914U108
0
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SH
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0
0
38567
NVIDIA CORPORATION
COM
67066G104
596
1101
SH
SOLE
0
0
1101
OCADO GROUP PLC
COM
G6718L106
909
25622
SH
SOLE
0
0
25622
ONTO INNOVATION INC
COM
683344105
5974
200607
SH
SOLE
0
0
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PACIRA BIOSCIENCES
COM
695127100
25591
425667
SH
SOLE
0
0
425667
PALANTIR TECHNOLOGIES INC
CL A
69608A108
240
25292
SH
SOLE
0
0
25292
PAYPAL HLDGS INC
COM
70450Y103
772
3916
SH
SOLE
0
0
3916
PENNANT GROUP INC
COM
70805E109
7290
189050
SH
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0
0
189050
PFIZER INC
COM
717081103
594
16180
SH
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0
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POWER SOLUTIONS INTERNATIONAL INC
COM
73933G202
3385
1109850
SH
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0
0
1109850
PROFOUND MED CORP
COM NEW
74319B502
13751
779533
SH
SOLE
0
0
779533
PROTO LABS INC
COM
743713109
7692
59400
SH
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0
0
59400
QUIDEL CORP
COM
74838J101
12664
57725
SH
SOLE
0
0
57725
RADA ELECTRONICS INDUSTRIES
COM PAR NEW
M81863124
156
26338
SH
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0
0
26338
RANGE RESOURCES CORP
COM
75281A109
136
20619
SH
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0
0
20619
REDHILL BIOPHARMA LTD
SPONSORED ADS
757468103
2432
237991
SH
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0
0
237991
SECUREWORKS CORP
CL A
81374A105
5455
478942
SH
SOLE
0
0
478942
SEVEN GENERATIONS ENERGY LTD
COM
81783Q105
54
20113
SH
SOLE
0
0
20113
SL GREEN RLTY CORP
COM
78440X101
536
11563
SH
SOLE
0
0
11563
SUNCOR ENERGY COM NEW
COM
867224107
400
32735
SH
SOLE
0
0
32735
SYSMEX CORP
COM
J7864H102
380
4001
SH
SOLE
0
0
4001
T2 BIOSYSTEMS INC
COM
89853L104
645
474310
SH
SOLE
0
0
474310
TALEND S A
ADS
874224207
1705
43685
SH
SOLE
0
0
43685
TAPESTRY INC
COM
876030107
612
39126
SH
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0
0
39126
TFF PHARMACEUTICALS INC
COM
87241J104
4056
219584
SH
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0
0
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URANIUM PARTN CORP
SHS
917017105
285
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SH
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0
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UR-ENERGY INC
COM
91688R108
239
498878
SH
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0
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VIAVI SOLUTIONS INC
COM
925550105
130
11053
SH
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0
0
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VONAGE HLDGS CORP
COM
92886T201
123
12002
SH
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0
0
12002
WALGREENS BOOTS ALLIANCE INC
COM
931427108
332
9232
SH
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0
0
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WPX ENERGY INC
COM
98212B103
2305
470373
SH
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0
0
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YEXT INC
CL A
98585N106
8545
562897
SH
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0
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562897
ZUORA INC
COM CL A
98983V106
1649
159448
SH
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0
0
159448
MERCK & CO. INC
COM
58933Y105
1153
13900
SH
Call
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MICRON TECHNOLOGY INC
COM
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493
10500
SH
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