ESSEX INVESTMENT MANAGEMENT

Latest statistics and disclosures from ESSEX INVESTMENT MANAGEMENT's latest quarterly 13F-HR filing:

ESSEX INVESTMENT MANAGEMENT portfolio companies for December 2014 quarter

Ticker Name Portfolio Weight Change Share Count Price Last Trade
GILD Gilead Sciences 2.71 -3.00% 197454 94.26 99.53
CELG Celgene Corporation 2.69 -4.00% 165411 111.86 118.26
JBLU JetBlue Airways Corporation 2.62 +21.00% 1132469 15.86 17.12
Palo Alto Networks 2.31 +14.00% 129623 122.57 0.00
AAPL Apple 2.18 +129.00% 135760 110.38 123.28
Alibaba Group Holding Ltd Spon 2.06 +220.00% 136370 103.94 0.00
WSDT WisdomTree Investments 2.04 -7.00% 892181 15.68 0.00
BMY Bristol Myers Squibb 1.84 +24.00% 213685 59.03 66.08
Facebook Inc cl a 1.76 -3.00% 155285 78.02 0.00
MS Morgan Stanley 1.70 -5.00% 300803 38.80 34.94
INCY Incyte Corporation 1.54 +35.00% 144546 73.11 88.43
Abbvie 1.43 +13.00% 149741 65.44 0.00
Linkedin 1.38 -19.00% 41151 229.71 0.00
CRM salesforce 1.27 -4.00% 146923 59.31 64.26
HON Honeywell International 1.25 86090 99.92 100.92
DIS Walt Disney Company 1.21 -11.00% 88299 94.19 103.60
GS Goldman Sachs 1.20 42478 193.84 184.67
2u 1.17 -2.00% 409260 19.66 0.00
BA Boeing Company 1.14 60318 129.98 152.38
IDTI Integrated Device Technology 1.08 +40.00% 379084 19.60 19.98
AMGN Amgen 1.07 46041 159.29 153.92
SLB Schlumberger 1.04 -30.00% 83211 85.41 81.67
EOG EOG Resources 1.03 76962 92.07 86.44
Wageworks 1.01 -3.00% 107281 64.57 0.00
Sunedison 1.01 356110 19.51 0.00
ULTI Ultimate Software 0.99 -3.00% 46186 146.82 162.96
MHP McGraw-Hill Companies 0.92 71068 88.99 0.00
Aerie Pharmaceuticals 0.89 210396 29.19 0.00
INTU Intuit 0.86 63856 92.19 95.52
Mellanox Technologies 0.86 +18.00% 138539 42.73 0.00
Cyberark Software Ltd shs 0.85 NEW 146921 39.65 0.00
Google Inc Class C 0.84 10995 526.42 0.00
AKAM Akamai Technologies 0.83 90880 62.96 69.99
N NetSuite 0.81 51092 109.18 91.16
GOOG Google 0.80 -4.00% 10345 530.69 554.33
Nxp Semiconductors N V 0.79 71030 76.40 0.00
CSII Cardiovascular Systems 0.78 -4.00% 178824 30.08 35.43
Eldorado Gold 0.77 +67.00% 873055 6.08 0.00
Del Friscos Restaurant 0.77 +64.00% 224029 23.74 0.00
BIIB Biogen Idec 0.76 +4.00% 15274 339.47 415.20
SCHW Charles Schwab Corporation 0.75 170142 30.19 30.86
URI United Rentals 0.74 49982 102.02 88.12
Actavis 0.73 +3.00% 19449 257.39 0.00
MDVN Medivation 0.67 -6.00% 46283 99.60 127.95
COP ConocoPhillips 0.64 63346 69.07 61.42
CSIQ Canadian Solar 0.64 181232 24.19 32.34
AYI Acuity Brands 0.60 +181.00% 29636 140.07 159.34
YHOO Yahoo! 0.58 78666 50.50 42.61
OPK Opko Health 0.57 390293 9.99 14.08
Marcus & Millichap 0.57 -5.00% 117715 33.25 0.00
SBUX Starbucks Corporation 0.55 -6.00% 46238 82.05 92.23
EXP Eagle Materials 0.54 +76.00% 48417 76.03 81.98
Cdw 0.53 +2.00% 102871 35.17 0.00
MRK Merck & Co 0.52 +4.00% 62421 56.79 56.20
BMRN BioMarin Pharmaceutical 0.51 39068 90.41 113.42
Mobileye N.v. 0.51 +1534.00% 86650 40.57 0.00
PAYX Paychex 0.50 75052 46.17 48.92
FSLR First Solar 0.50 77325 44.59 60.28
Ingersoll-rand Co Ltd-cl A 0.50 -11.00% 54288 63.38 0.00
HD Home Depot 0.49 31811 104.96 113.11
VIA.B Via 0.47 42626 75.26 0.00
T2 Biosystems 0.47 +10.00% 167952 19.24 0.00
TASR TASER International 0.46 +323.00% 120580 26.48 22.03
Triplepoint Venture Gr Bdc cs 0.46 210739 14.85 0.00
Tyco International 0.45 NEW 70144 43.87 0.00
PWR Quanta Services 0.44 107071 28.39 28.12
GOLD Randgold Resources 0.43 +168.00% 44000 67.41 66.67
Proofpoint 0.42 -7.00% 59808 48.24 0.00
Fleetmatics 0.41 +14.00% 79032 35.49 0.00
RRC Range Resources 0.38 +91.00% 48593 53.44 47.15
REGN Regeneron Pharmaceuticals 0.38 +579.00% 6351 410.17 427.05
SIVB SVB Financial 0.38 22266 116.05 124.11
PG Procter & Gamble Company 0.37 27998 91.08 81.31
AGN Allergan 0.36 11468 212.59 234.98
T AT&T; 0.35 70602 33.60 32.70
WFC Wells Fargo & Company 0.35 43655 54.82 53.90
OSUR OraSure Technologies 0.35 +32.00% 234521 10.14 7.47
Sunpower 0.34 -25.00% 89167 25.83 0.00
Market Vectors Junior Gold Min 0.34 +95.00% 96700 23.93 0.00
CL Colgate-Palmolive Company 0.33 -5.00% 33074 69.18 68.17
Zoetis Inc Cl A 0.33 52835 43.02 0.00
MSFT Microsoft Corporation 0.32 +10.00% 47835 46.45 42.00
BDC Belden 0.32 -2.00% 28078 78.82 85.06
Alkermes 0.32 37975 58.56 0.00
ATRC AtriCure 0.31 -14.00% 105789 19.96 18.87
Acadia Healthcare 0.31 -7.00% 35025 61.21 0.00
Icon 0.31 -7.00% 42029 50.99 0.00
JNJ Johnson & Johnson 0.30 -13.00% 19406 104.56 98.55
TDSC 3D Systems Corporation 0.30 NEW 61862 32.86 0.00
American Airls 0.30 -57.00% 38246 53.63 0.00
VZ Verizon Communications 0.29 42779 46.78 48.01
AFFX Affymetrix 0.29 -10.00% 200939 9.87 12.24
FCX Freeport-McMoRan Copper & Gold 0.28 -4.00% 81765 23.36 18.56
APOG Apogee Enterprises 0.28 -4.00% 45456 42.37 42.50
AJG Arthur J. Gallagher & Co. 0.27 39734 47.09 45.96
LYV Live Nation Entertainment 0.27 -10.00% 71370 26.10 25.19
CALD Callidus Software 0.27 -12.00% 115033 16.33 13.26
Tower Semiconductor 0.27 +9.00% 136542 13.33 0.00
Barracuda Networks 0.27 NEW 51530 35.84 0.00
MMC Marsh & McLennan Companies 0.26 31324 57.24 55.76
CVTI Covenant Transportation 0.25 -13.00% 64166 27.12 33.72
SNA Snap-on Incorporated 0.24 12014 136.76 142.04
SPNC Spectranetics Corporation 0.24 +143.00% 46731 34.58 33.93
Twitter 0.24 +1050.00% 46447 35.87 0.00
HSTM HealthStream 0.23 -3.00% 53378 29.49 25.50
SIGM Sigma Designs 0.22 202314 7.40 7.06
HAIN Hain Celestial 0.22 +82.00% 26252 58.28 60.12
DXCM Dex 0.22 -16.00% 27786 55.06 58.66
IL IntraLinks Holdings 0.22 124220 11.90 10.29
Xpo Logistics Inc equity 0.22 -10.00% 37649 40.88 0.00
HAL Halliburton Company 0.21 -71.00% 35887 39.32 41.30
CVCO Cavco Industries 0.21 -10.00% 18287 79.29 70.10
Infoblox 0.21 -10.00% 72524 20.21 0.00
TEVA Teva Pharmaceutical Industries 0.20 24422 57.53 57.77
KFY Korn/Ferry International 0.20 -9.00% 46747 28.75 29.96
Interactive Intelligence 0.20 -10.00% 28931 47.91 0.00
Matador Resources 0.20 -14.00% 66866 20.23 0.00
Bright Horizons Fam Sol In D 0.20 29441 47.01 0.00
CVX Chevron Corporation 0.19 11490 112.18 102.86
KNL Knoll 0.19 -9.00% 60570 21.17 19.51
Agni 0.19 -53.00% 52600 24.89 0.00
PFSW PFSweb 0.19 -13.00% 104695 12.66 10.98
LOGM LogMeIn 0.19 -10.00% 26343 49.35 52.48
UNH UnitedHealth 0.18 -24.00% 12028 101.10 113.33
Gold 0.18 -34.00% 65770 18.52 0.00
PSEM Pericom Semiconductor 0.18 -13.00% 90452 13.54 15.25
SHLM A. Schulman 0.18 -10.00% 30490 40.54 41.11
WPP Wausau Paper 0.18 NEW 107704 11.37 8.75
HW Headwaters Incorporated 0.18 -10.00% 81816 14.98 16.03
DYAX Dyax 0.18 -13.00% 87467 14.06 16.58
PRO PROS Holdings 0.18 -10.00% 45636 27.48 23.00
TFM Fresh Market 0.18 -10.00% 29932 41.19 39.78
PTX Pernix Therapeutics Holdings 0.18 +37.00% 134800 9.39 11.80
Matson 0.18 NEW 36491 34.53 0.00
Boise Cascade 0.18 -13.00% 33188 37.15 0.00
STC Stewart Information Services Corporation 0.17 -10.00% 32295 37.03 36.98
CECO Career Education 0.17 -7.00% 164808 6.96 5.50
DV DeVry 0.17 -10.00% 23947 47.48 35.10
AMZN Amazon 0.17 -86.00% 3700 310.27 372.62
EVR Evercore Partners 0.17 -9.00% 22504 52.39 50.69
Royal Gold 0.17 -29.00% 18700 62.67 0.00
AMSF Amerisafe 0.17 -10.00% 27348 42.34 39.88
PACB Pacific Biosciences of California 0.17 -13.00% 151253 7.84 5.81
U.s. Concrete Inc Cmn 0.17 -12.00% 40286 28.45 0.00
Grubhub 0.17 +42.00% 31707 36.33 0.00
CNS Cohen & Steers 0.16 NEW 25658 42.09 40.39
BIDU Baidu 0.16 NEW 4900 227.96 207.29
MANH Manhattan Associates 0.16 +5.00% 26913 40.72 48.43
CRAI CRA International 0.16 -13.00% 36686 30.31 31.42
IRBT iRobot Corporation 0.16 NEW 30719 34.73 33.56
CATM Cardtronics 0.16 -13.00% 28117 38.59 35.46
Stratasys 0.16 NEW 13600 83.09 0.00
ILMN Illumina 0.15 5668 184.54 191.44
AEGEAN MARINE PETROLEUM Networ Com Stk 0.15 -13.00% 74372 14.02 0.00
CHKE Cherokee 0.15 -13.00% 54954 19.36 18.64
IG IGI Laboratories 0.15 -13.00% 116915 8.80 8.20
Evine Live Inc cl a 0.15 NEW 154567 6.59 0.00
IPGP IPG Photonics Corporation 0.14 +43.00% 13072 74.89 96.34
DSPG DSP 0.14 -13.00% 86587 10.87 11.37
MNTX Manitex International 0.14 -13.00% 75983 12.71 9.33
Synageva Biopharma 0.14 NEW 10612 92.82 0.00
Qualys 0.14 25000 37.76 0.00
Hannon Armstrong stock 0.14 65679 14.24 0.00
NVS Novartis AG 0.13 9383 92.61 96.03
BIG Big Lots 0.13 -13.00% 22248 40.00 50.09
ALJ Alon USA Energy 0.13 -13.00% 68811 12.67 14.28
SWKS Skyworks Solutions 0.13 11944 72.67 92.91
CUTR Cutera 0.13 NEW 81449 10.68 13.16
IIIN Insteel Industries 0.13 -13.00% 37884 23.57 20.14
NLS Nautilus 0.13 NEW 58816 15.18 15.54
Addus Homecare 0.13 NEW 37912 24.27 0.00
CALX Calix 0.13 -20.00% 86044 10.02 8.53
SNAK Inventure Foods 0.13 -13.00% 69588 12.75 10.43
Autobytel 0.13 -13.00% 82659 10.90 0.00
Opower 0.13 -13.00% 61514 14.22 0.00
JCI Johnson Controls 0.12 +9.00% 17378 48.34 48.46
DHR Danaher Corporation 0.12 10000 85.70 84.59
KIRK Kirkland's 0.12 NEW 34580 23.63 23.64
WAB Wabtec Corporation 0.12 9573 86.91 91.75
BMI Badger Meter 0.12 +9.00% 13998 59.37 56.21
CVGI Commercial Vehicle 0.12 NEW 120222 6.66 5.74
FRME First Merchants Corporation 0.12 -13.00% 35479 22.75 22.58
OESX Orion Energy Systems 0.12 -13.00% 149717 5.50 3.14
TNAV TeleNav 0.12 NEW 128626 6.67 7.94
IRIX IRIDEX Corporation 0.12 -13.00% 95575 8.60 10.02
MITK Mitek Systems 0.12 NEW 254346 3.31 3.10
Sirius Xm Holdings 0.12 +49.00% 240000 3.50 0.00
GSM Globe Specialty Metals 0.11 -10.00% 42993 17.24 16.77
MCK McKesson Corporation 0.11 +67.00% 3725 207.52 221.98
Targa Res 0.11 7441 106.03 0.00
Supernus Pharmaceuticals 0.11 -13.00% 94710 8.30 0.00
ITW Illinois Tool Works 0.10 7500 94.67 96.27
ALXN Alexion Pharmaceuticals 0.10 3582 185.09 179.76
PGTI PGT 0.10 -13.00% 74130 9.63 10.76
VC Visteon Corporation 0.10 6372 106.87 97.73
Icad 0.10 +11.00% 74510 9.17 0.00
GE General Electric Company 0.09 23193 25.27 25.35
Tsakos Energy Navigation 0.09 -13.00% 84422 6.98 0.00
Kinross Gold 0.09 -69.00% 221300 2.82 0.00
WTS Watts Water Technologies 0.09 +9.00% 9403 63.49 52.83
New Gold Inc Cda 0.09 NEW 145300 4.30 0.00
D Fluidigm Corp Del 0.09 -13.00% 18441 33.73 0.00
Radiant Logistics 0.09 -13.00% 140243 4.23 0.00
Seadrill Partners 0.09 -43.00% 37478 16.22 0.00
Artisan Partners 0.09 12007 50.55 0.00
AKS AK Steel Holding Corporation 0.08 NEW 97133 5.94 3.95
BWA BorgWarner 0.08 +54.00% 10503 54.94 58.93
HXL Hexcel Corporation 0.08 12922 41.48 47.72
CCC Calgon Carbon Corporation 0.08 +9.00% 25913 20.76 20.35
POWR PowerSecure International 0.08 -13.00% 47072 11.64 11.85
MYRG MYR 0.08 +9.00% 18946 27.39 25.98
Asa Limited shs 0.08 NEW 51000 10.12 0.00
BDSI BioDelivery Sciences International 0.08 45217 12.03 14.81
IWO iShares Russell 2000 Growth Index 0.08 NEW 3915 142.27 146.64
ACAD ACADIA Pharmaceuticals 0.08 16647 31.78 43.70
YOKU Youku 0.08 29771 17.80 16.00
WLDN Willdan 0.08 -35.00% 38448 13.50 14.11
Kinder Morgan 0.08 13528 42.28 0.00
Biotelemetry 0.08 -13.00% 53100 10.04 0.00
PKG Packaging Corporation of America 0.07 -20.00% 5943 78.08 77.86
AXP American Express Company 0.07 5333 93.01 79.39
XOM Exxon Mobil Corporation 0.07 5336 92.39 84.57
WMT Wal-Mart Stores 0.07 +10.00% 5500 85.82 81.06
LKQX LKQ Corporation 0.07 +9.00% 17918 28.13 0.00
CPB Campbell Soup Company 0.07 10456 43.99 45.09
DLTR Dollar Tree 0.07 7008 70.35 80.00
PVA Penn Virginia Corporation 0.07 -13.00% 74037 6.69 6.36
ADS Alliance Data Systems Corporation 0.07 1617 286.33 275.30
EEFT Euronet Worldwide 0.07 8457 54.87 53.73
ERII Energy Recovery 0.07 +120.00% 85235 5.27 2.78
RAVN Raven Industries 0.07 +118.00% 20354 25.01 18.44
SGMO Sangamo Biosciences 0.07 +32.00% 30684 15.22 16.92
ATEC Alphatec Holdings 0.07 -13.00% 333579 1.41 1.52
MD Mednax 0.07 7393 66.14 70.95
PODD Insulet Corporation 0.07 10458 46.09 32.59
Codexis 0.07 -13.00% 177979 2.52 0.00
Xylem 0.07 NEW 12157 38.09 0.00
Jazz Pharmaceuticals 0.07 3073 163.68 0.00
Bioamber 0.07 +59.00% 58728 8.39 0.00
Endurance Intl Group Hldgs I 0.07 -30.00% 26935 18.41 0.00
VRTX Vertex Pharmaceuticals Incorporated 0.06 3456 118.92 123.26
CRL Charles River Laboratories 0.06 6185 63.70 78.58
PKI PerkinElmer 0.06 9098 43.75 46.52
SWN Southwestern Energy Company 0.06 +5.00% 15030 27.28 21.94
MDRX Allscripts Healthcare Solutions 0.06 -68.00% 33780 12.76 11.88
CHS Chico's FAS 0.06 -14.00% 23313 16.21 17.91
ETP Energy Transfer Partners 0.06 6202 64.98 54.95
CPST Capstone Turbine Corporation 0.06 -13.00% 546619 0.74 0.65
Sunopta 0.06 -13.00% 37201 11.85 0.00
ALNY Alnylam Pharmaceuticals 0.06 -14.00% 4008 97.06 111.05
AXTI AXT 0.06 -13.00% 158472 2.80 2.65
USEG U.S. Energy 0.06 -13.00% 268161 1.48 1.28
TRIB Trinity Biotech 0.06 -13.00% 24885 17.52 18.81
Puma Biotechnology Inc Common Stock 0.06 2336 189.21 0.00
Bluebird Bio 0.06 NEW 4427 91.71 0.00
Zendesk 0.06 +19.00% 17889 24.37 0.00
Liberty Tax 0.06 12105 35.77 0.00
IACI IAC/InterActive 0.05 6043 60.73 68.07
LEN Lennar Corporation 0.05 -25.00% 7230 44.81 48.23
CMC Commercial Metals Company 0.05 -14.00% 18946 16.31 14.51
Everest Re 0.05 2130 170.42 0.00
SHPGY Shire 0.05 NEW 1586 212.48 0.00
BUD Anheuser-Busch InBev NV 0.05 3229 112.42 120.72
FAST Fastenal Company 0.05 7500 47.60 40.46
VRSK Verisk Analytics 0.05 5221 63.97 69.61
MMS MAXIMUS 0.05 6250 54.88 61.29
MTX Minerals Technologies 0.05 4694 69.45 68.96
SNX SYNNEX Corporation 0.05 4296 78.21 73.25
FCEL FuelCell Energy 0.05 -13.00% 214060 1.54 1.28
INFI Infinity Pharmaceuticals 0.05 -22.00% 19863 16.87 15.42
VRNT Verint Systems 0.05 6164 58.24 57.84
ELGX Endologix 0.05 20303 15.27 15.20
Team Health Holdings 0.05 6131 57.58 0.00
Zeltiq Aesthetics 0.05 11921 27.93 0.00
Whitewave Foods 0.05 10375 34.99 0.00
Quintiles Transnatio Hldgs I 0.05 5775 58.87 0.00
Mix Telematics Ltd - 0.05 +9.00% 49718 6.50 0.00
Tecogen 0.05 60499 5.22 0.00
CMCSA Comcast Corporation 0.04 -25.00% 4333 57.93 58.60
MMM 3M Company 0.04 1742 164.18 162.72
CPRT Copart 0.04 6600 36.52 36.58
ADP Automatic Data Processing 0.04 3334 83.38 85.00
BSX Boston Scientific Corporation 0.04 22819 13.23 16.49
ALL Allstate Corporation 0.04 4033 70.17 68.72
RDS.A Royal Dutch Shell 0.04 4020 66.92 0.00
LXK Lexmark International 0.04 6929 41.28 38.67
Enterprise Products Partners 0.04 8520 36.15 0.00
DSW DSW 0.04 NEW 8211 37.27 37.15
BRKR Bruker Corporation 0.04 13828 19.60 18.90
FLS Flowserve Corporation 0.04 NEW 4412 59.84 57.90
TRAK DealerTrack Holdings 0.04 NEW 5513 44.26 37.34
X United States Steel Corporation 0.04 -7.00% 10415 26.69 22.23
HTWR HeartWare International 0.04 3454 73.54 85.05
EXAM Examworks 0.04 -83.00% 7000 41.57 38.54
RMTI Rockwell Medical Technologies 0.04 -12.00% 25572 10.28 9.96
HCA HOLDINGS 0.04 NEW 4038 73.30 0.00
Homeaway 0.04 9825 29.82 0.00
Duke Energy 0.04 3081 83.41 0.00
Silver Spring Networks 0.04 +9.00% 30569 8.44 0.00
Fireeye 0.04 -94.00% 8556 31.56 0.00
Square 1 Financial 0.04 -12.00% 10108 24.73 0.00
JOYG Joy Global 0.03 -26.00% 4423 46.57 0.00
SGEN Seattle Genetics 0.03 NEW 6991 32.18 36.91
EBAY eBay 0.03 NEW 3884 56.13 59.78
EMC EMC Corporation 0.03 NEW 7641 29.71 26.24
CXO Concho Resources 0.03 +2.00% 2393 99.87 107.77
UMC United Microelectronics 0.03 91400 2.26 2.46
ARUN Aruba Networks 0.03 -32.00% 11118 18.17 24.49
DGI DigitalGlobe 0.03 -15.00% 6622 30.96 34.83
Avago Technologies 0.03 NEW 2100 100.48 0.00
KEYW KEYW Holding 0.03 NEW 20954 10.40 7.37
Tripadvisor 0.03 NEW 3071 74.57 0.00
Moelis & Co 0.03 -93.00% 6712 34.86 0.00
F Ford Motor Company 0.02 10437 15.52 15.85
Forbes Energy Services 0.02 -13.00% 87298 1.21 0.00
XCO EXCO Resources 0.01 -14.00% 23808 2.18 1.61
Mad Catz Interactive 0.01 NEW 115867 0.42 0.00
IPAS iPass 0.01 NEW 35396 1.36 1.06
STRI STR Holdings 0.01 -10.00% 34448 1.36 1.59
SLP Simulations Plus 0.01 -10.00% 11584 6.65 6.18
LEDS SemiLEDs Corporation 0.01 -10.00% 54000 1.09 1.03
SUMR Summer Infant 0.01 -10.00% 18021 3.27 2.73
Ur-energy 0.01 NEW 100000 0.87 0.00
AEHR Aehr Test Systems 0.01 -10.00% 21662 2.54 2.39
DYSL Dynasil Corporation of America 0.01 -10.00% 33061 1.45 1.50
BLTI Biolase Technology 0.01 -10.00% 23803 2.65 0.00
INTT inTEST Corporation 0.01 -10.00% 10856 4.24 4.08
LTRX Lantronix 0.01 NEW 27491 1.89 1.78
Gigoptix 0.01 -10.00% 32413 1.20 0.00
Chembio Diagnostics 0.01 -10.00% 14388 3.89 0.00
GRH GreenHunter Energy 0.00 -10.00% 15662 0.70 0.70
Halcon Resources 0.00 -7.00% 12538 1.75 0.00