0000909012-12-000023.txt : 20120126
0000909012-12-000023.hdr.sgml : 20120126
20120126140622
ACCESSION NUMBER: 0000909012-12-000023
CONFORMED SUBMISSION TYPE: 13F-HR
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20111231
FILED AS OF DATE: 20120126
DATE AS OF CHANGE: 20120126
EFFECTIVENESS DATE: 20120126
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: 12547187
BUSINESS ADDRESS:
STREET 1: P.O. BOX 1370 AVENUE OF THE AMERICAS,
STREET 2: SUITE 2002
CITY: NEW YORK
STATE: NY
ZIP: 10019
BUSINESS PHONE: 2125545000
MAIL ADDRESS:
STREET 1: P.O. BOX 1370 AVENUE OF THE AMERICAS
STREET 2: SUITE 2002
CITY: NEW YORK
STATE: NY
ZIP: 10019
13F-HR
1
t306598.txt
GAG
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F-HR
FORM 13F COVER PAGE
Report for the Calendar Year of Quarter Ended: DECEMBER 31, 2011
Check here if Amendment [ ]; Amendment Number:
This Amendment (Check only one.): [ ] is a restatement.
[ ] adds new holdings entries.
Institutional Investment Manager Filing this Report:
Name: GAGNON SECURITIES LLC
Address: 1370 AVENUE OF THE AMERICAS, SUITE 2400
NEW YORK, NY 10019
Form 13F File Number: 28-06377
The institutional investment manager filing this report and the person by whom
it is signed hereby represent that the person signing the report is authorized
to submit it, that all information contained herein is true, correct and
complete, and that it is understood that all required items, statements,
schedules, lists, and tables, are considered integral parts of this form.
Person Signing this Report on Behalf of Reporting Manager:
Name: SUE ANN MURRAY
Title: ADMINISTRATIVE PARTNER
Phone: (212) 554-5000
Signature Place Date of Signing
/S/ SUE ANN MURRAY NEW YORK, NY JANUARY 22, 2012
Report Type (Check only one.):
[X] 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager
are reported in this report.)
[ ] 13F NOTICE. (Check here if no holdings reported are in this report, and all
holdings are reported by other reporting manager(s).)
[ ] 13F COMBINATION REPORT. (Check here if a portion of the holdings for this
reporting manager are reported in this report and a portion are reported by
other reporting manager(s).)
FORM 13F-HR SUMMARY PAGE
Report Summary:
Number of Other Included Managers: 0
Form 13F Information Table Entry Total: 75
Form 13F Information Table Value Total: $168,248
(thousands)
List of Other Included Managers: NONE
NAME OF ISSUER TITLE OF CLASS CUSIP VALUE SHARES/ SH PUT/ OTHER INVESTMENT VOTING AUTHORITY
(X1000) PRN AMT PRN CALL MANAGERS DISCRETION SOLE SHARED NONE
ADTEC ENGINEERING CO COM J0016V103 42 10741 SH SOLE SOLE NONE
ADVANCED MICRO DEVICES INC note 6.05%
SR NT CONV 6.0% due 5/1/15 5/1/15 007903A11 103 106000 PRN SOLE SOLE NONE
AIR LEASE CORPORATION CL A CL A 00912X302 4,849 204521 SH SOLE SOLE NONE
AKAMAI TECHNOLOGIES INC COM 00971T101 890 27568 SH SOLE SOLE NONE
AKELA PHARMA INC COM 00972X200 2 13840 SH SOLE SOLE NONE
ALPHA & OMEGA SEMICONDUCTOR LIMITED SHS G6331P104 3,780 517072 SH SOLE SOLE NONE
ALPHATEC HLDGS INC COM 02081G102 80 46734 SH SOLE SOLE NONE
AMERESCO INC CL A CL A 02361E108 6,241 454851 SH SOLE SOLE NONE
AMN HEALTHCARE SVCS INC COM 001744101 800 180553 SH SOLE SOLE NONE
ANADIGICS INC COM 032515108 289 131810 SH SOLE SOLE NONE
ANTRIM ENERGY INC COM 037243102 2,512 2182335 SH SOLE SOLE NONE
APPLIED ENERGETICS INC COM 03819M106 3 36920 SH SOLE SOLE NONE
ARCHER-DANIELS-MIDLAND CO COM 039483102 319 11170 SH SOLE SOLE NONE
ATHENAHEALTH INC COM 04685W103 7,770 158189 SH SOLE SOLE NONE
AVELCO CO JPY50 COM J0356E109 40 10700 SH SOLE SOLE NONE
CALLWAVE INC NEW COM 13126N200 37 28330 SH SOLE SOLE NONE
CARMAX INC COM 143130102 5,445 178654 SH SOLE SOLE NONE
CNINSURE INC SPONSORED ADR SPONSORED ADR 18976M103 2,835 409616 SH SOLE SOLE NONE
COM DEV INTERNATIONAL LTD COM 199907106 5,162 2560126 SH SOLE SOLE NONE
COMMVAULT SYSTEMS INC COM 204166102 256 5986 SH SOLE SOLE NONE
CONSTANT CONTACT INC COM 210313102 7,447 320871 SH SOLE SOLE NONE
CYMER INC COM 232572107 7,520 151124 SH SOLE SOLE NONE
CYTORI THERAPEUTICS INC COM 23283K105 276 125465 SH SOLE SOLE NONE
DISCOVERY LABORATORIES INC COM 254668403 26 15468 SH SOLE SOLE NONE
DURECT CORP COM 266605104 4,318 3659561 SH SOLE SOLE NONE
ELLIE MAE INC COM 28849P100 5,121 906290 SH SOLE SOLE NONE
EQUINIX INC COM 29444U502 5,929 58470 SH SOLE SOLE NONE
ETHAN ALLEN INTERIORS INC COM 297602104 267 11255 SH SOLE SOLE NONE
FINANCIAL ENGINES INC COM 317485100 2,735 122487 SH SOLE SOLE NONE
FXCM INC COM CL A COM 302693106 6,587 675616 SH SOLE SOLE NONE
GAYLORD ENTERTAINMENT CO NEW COM 367905106 1,216 50373 SH SOLE SOLE NONE
GENERAC HOLDINGS INC COM 368736104 3,298 117646 SH SOLE SOLE NONE
GENERAL ELECTRIC CO COM 369604103 352 19645 SH SOLE SOLE NONE
GENERAL FINANCE CORPORATION COM 369822101 5,965 2250837 SH SOLE SOLE NONE
General Finance Corporation
UNT 99/99/9999 UNT/99/99/9999 369822408 3,340 1012233 SH SOLE SOLE NONE
GENTEX CORP COM 371901109 543 18349 SH SOLE SOLE NONE
HEALTHWAYS INC COM 422245100 275 40099 SH SOLE SOLE NONE
HOLOGIC INC COM 436440101 636 36300 SH SOLE SOLE NONE
HOVNANIAN ENTERPRISES INC-CL A CL A 442487203 48 32857 SH SOLE SOLE NONE
HURON CONSULTING GROUP INC COM 447462102 5,544 143110 SH SOLE SOLE NONE
ICG GROUP INC COM 44928D108 3,121 404245 SH SOLE SOLE NONE
ICHIYOSHI SECURITIES CO LTD COM J2325R104 52 12235 SH SOLE SOLE NONE
IKANOS COMMUNICATIONS COM 45173E105 17 20892 SH SOLE SOLE NONE
INPHI CORP COM 45772F107 157 13145 SH SOLE SOLE NONE
IROBOT CORP COM 462726100 317 10632 SH SOLE SOLE NONE
JEFFERIES GROUP INC NEW COM 472319102 275 19987 SH SOLE SOLE NONE
KANDI TECHNOLOGIES CORP COM 483709101 106 28585 SH SOLE SOLE NONE
LIVEPERSON INC COM 538146101 167 13301 SH SOLE SOLE NONE
MICROCHIP TECHNOLOGY INC COM 595017104 317 8644 SH SOLE SOLE NONE
MINDSPEED TECHNOLOGIES INC NEW COM 602682205 821 179174 SH SOLE SOLE NONE
MONSANTO CO NEW COM 61166W101 410 5845 SH SOLE SOLE NONE
NAPCO SECURITY TECHNOLOGIES INC COM 630402105 969 389246 SH SOLE SOLE NONE
NEOVASC INC COM 64065J106 3,443 2710915 SH SOLE SOLE NONE
NETGEAR INC COM 64111Q104 491 14631 SH SOLE SOLE NONE
NETSUITE INC COM 64118Q107 4,602 113498 SH SOLE SOLE NONE
NINTENDO CO LTD-ADR NEW SPONSORED ADR 654445303 249 14713 SH SOLE SOLE NONE
NIVS INTELLIMEDIA TECHNOLOGY GROUP INC COM 62914U108 7 88968 SH SOLE SOLE NONE
NOVADAQ TECHNOLOGIES INC COMMON COM 66987G102 9,957 2023736 SH SOLE SOLE NONE
PITNEY BOWES INC COM 724479100 319 17180 SH SOLE SOLE NONE
PLX TECHNOLOGY INC COM COM 693417107 5,599 1950855 SH SOLE SOLE NONE
RED HAT INC COM 756577102 8,130 196903 SH SOLE SOLE NONE
RENTRAK CORP COM COM 760174102 866 60613 SH SOLE SOLE NONE
RTI BIOLOGICS INC COM 74975N105 9,057 2039911 SH SOLE SOLE NONE
RUDOLPH TECHNOLOGIES INC COM 781270103 6,315 681957 SH SOLE SOLE NONE
SCICLONE PHARMACEUTICALS INC COM 80862K104 572 133235 SH SOLE SOLE NONE
SCO GROUP INC (THE) COM 78403A106 3 145665 SH SOLE SOLE NONE
TALEO CORP CL A CL A 87424N104 369 9549 SH SOLE SOLE NONE
TANGOE INC COM 87582Y108 5,555 360715 SH SOLE SOLE NONE
THORATEC CORP NEW COM 885175307 718 21393 SH SOLE SOLE NONE
TITAN PHARMACEUTICALS INC COM 888314101 556 487988 SH SOLE SOLE NONE
ULTIMATE SOFTWARE GROUP INC COM 90385D107 218 3342 SH SOLE SOLE NONE
VANDA PHARMACEUTICALS INC COM 921659108 893 187620 SH SOLE SOLE NONE
XFONE INC COM 98414Y109 587 1468515 SH SOLE SOLE NONE
XTREME COIL DRILLING CORP COM 98417D102 103 26955 SH SOLE SOLE NONE
ZIPREALTY INC COM 98974V107 14 12723 SH SOLE SOLE NONE
168,248