Essex Investment Management

Essex Investment Management as of March 31, 2013

Portfolio Holdings for Essex Investment Management

Essex Investment Management holds 329 positions in its portfolio as reported in the March 2013 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Celgene Corporation 2.5 $15M 126k 115.91
US Airways 2.4 $14M 811k 16.97
Google 2.3 $13M 17k 794.19
Gilead Sciences (GILD) 2.0 $12M 243k 48.94
Uni-Pixel 1.9 $11M 360k 30.65
Anadarko Petroleum Corporation 1.8 $11M 120k 87.45
Royal Gold (RGLD) 1.6 $9.6M 135k 71.03
Adobe Systems Incorporated (ADBE) 1.6 $9.2M 211k 43.51
Exone 1.5 $8.8M 264k 33.50
Newmont Mining Corporation (NEM) 1.4 $8.3M 199k 41.89
Intuit (INTU) 1.4 $7.9M 121k 65.66
Westport Innovations 1.4 $7.9M 268k 29.52
eBay (EBAY) 1.4 $7.8M 145k 54.22
Morgan Stanley (MS) 1.3 $7.7M 351k 21.98
Cray 1.3 $7.7M 333k 23.21
Adt 1.3 $7.7M 158k 48.94
Walt Disney Company (DIS) 1.3 $7.6M 134k 56.80
Qualcomm (QCOM) 1.3 $7.5M 111k 66.94
stock 1.2 $7.0M 175k 40.03
3D Systems Corporation (DDD) 1.0 $5.6M 175k 32.24
Starbucks Corporation (SBUX) 0.9 $5.3M 94k 56.95
Biogen Idec (BIIB) 0.9 $5.2M 27k 192.63
Wageworks 0.9 $5.1M 205k 25.03
Goldman Sachs (GS) 0.9 $5.0M 34k 147.15
ConocoPhillips (COP) 0.9 $5.0M 84k 60.10
Franco-Nevada Corporation (FNV) 0.8 $4.8M 104k 45.59
McGraw-Hill Companies 0.8 $4.5M 87k 52.08
VMware 0.8 $4.6M 58k 78.87
Chart Industries (GTLS) 0.7 $4.3M 53k 80.01
Ellie Mae 0.7 $4.2M 176k 24.05
EOG Resources (EOG) 0.7 $4.2M 33k 128.07
Hologic (HOLX) 0.7 $4.1M 181k 22.60
New Gold Inc Cda (NGD) 0.7 $4.1M 450k 9.10
BE Aerospace 0.7 $4.0M 67k 60.28
Schlumberger (SLB) 0.7 $3.9M 53k 74.90
Orexigen Therapeutics 0.7 $3.9M 626k 6.26
Verisk Analytics (VRSK) 0.7 $3.8M 62k 61.61
ARM Holdings 0.7 $3.8M 90k 42.37
JPMorgan Chase & Co. (JPM) 0.7 $3.8M 80k 47.46
Hertz Global Holdings 0.6 $3.7M 166k 22.26
Eagle Materials (EXP) 0.6 $3.5M 53k 66.62
General Electric Company 0.6 $3.5M 151k 23.12
Freeport-McMoRan Copper & Gold (FCX) 0.6 $3.4M 104k 33.10
Quanta Services (PWR) 0.6 $3.5M 121k 28.58
Coca-Cola Company (KO) 0.6 $3.4M 84k 40.45
salesforce (CRM) 0.6 $3.4M 19k 178.83
Charles Schwab Corporation (SCHW) 0.6 $3.3M 188k 17.69
PROS Holdings (PRO) 0.6 $3.3M 121k 27.17
Web 0.6 $3.3M 194k 17.08
Targa Res Corp (TRGP) 0.6 $3.3M 49k 67.97
Performant Finl (PFMT) 0.6 $3.3M 269k 12.28
Astronics Corporation (ATRO) 0.6 $3.3M 109k 29.82
USG Corporation 0.5 $3.2M 120k 26.44
Chubb Corporation 0.5 $3.1M 35k 87.54
Halcon Resources 0.5 $3.0M 391k 7.79
SVB Financial (SIVBQ) 0.5 $2.9M 42k 70.94
Sourcefire 0.5 $3.0M 50k 59.22
Wells Fargo & Company (WFC) 0.5 $2.9M 78k 36.98
EnerNOC 0.5 $2.8M 164k 17.37
Tearlab Corp 0.5 $2.8M 408k 6.90
Yandex Nv-a (YNDX) 0.5 $2.8M 121k 23.14
Advisory Board Company 0.5 $2.7M 52k 52.53
At&t (T) 0.5 $2.7M 73k 36.69
Paychex (PAYX) 0.5 $2.7M 77k 35.06
Via 0.5 $2.6M 43k 61.48
Chevron Corporation (CVX) 0.5 $2.6M 22k 118.83
Continental Resources 0.5 $2.6M 30k 86.92
Southwestern Energy Company 0.5 $2.6M 71k 37.25
Delta Air Lines (DAL) 0.5 $2.6M 159k 16.51
Seadrill Partners 0.5 $2.6M 93k 27.75
Corning Incorporated (GLW) 0.4 $2.5M 191k 13.33
Range Resources (RRC) 0.4 $2.5M 31k 81.04
Halliburton Company (HAL) 0.4 $2.5M 62k 40.40
Goldcorp 0.4 $2.5M 75k 33.62
Allied Nevada Gold 0.4 $2.5M 150k 16.46
Market Leader 0.4 $2.4M 273k 8.96
Alkermes (ALKS) 0.4 $2.4M 103k 23.70
Stewart Information Services Corporation (STC) 0.4 $2.4M 95k 25.47
Home Depot (HD) 0.4 $2.3M 33k 69.79
Cooper Companies 0.4 $2.2M 21k 107.90
Verizon Communications (VZ) 0.4 $2.1M 42k 49.15
Barrick Gold Corp (GOLD) 0.3 $2.0M 69k 29.39
A. O. Smith Corporation (AOS) 0.3 $2.0M 27k 73.56
inContact, Inc . 0.3 $2.0M 251k 8.09
Sodastream International 0.3 $2.1M 41k 49.64
Citigroup (C) 0.3 $2.0M 46k 44.24
Intermolecular 0.3 $2.0M 199k 10.20
Colgate-Palmolive Company (CL) 0.3 $2.0M 17k 118.06
HMS Holdings 0.3 $2.0M 72k 27.15
Johnson & Johnson (JNJ) 0.3 $1.9M 24k 81.52
Allergan 0.3 $1.9M 17k 111.62
Acacia Research Corporation (ACTG) 0.3 $1.9M 63k 30.16
CNO Financial (CNO) 0.3 $1.9M 168k 11.45
Yamana Gold 0.3 $1.9M 122k 15.35
Neonode 0.3 $1.9M 326k 5.77
Integrated Device Technology 0.3 $1.8M 238k 7.47
TETRA Technologies (TTI) 0.3 $1.7M 169k 10.26
Banco Bradesco SA (BBD) 0.3 $1.8M 104k 17.02
Kinross Gold Corp (KGC) 0.3 $1.7M 220k 7.93
Restoration Hardware Hldgs I 0.3 $1.7M 49k 35.01
NeoGenomics (NEO) 0.3 $1.7M 423k 3.93
Comerica Incorporated (CMA) 0.3 $1.6M 46k 35.96
Icon (ICLR) 0.3 $1.6M 50k 32.29
Old Republic International Corporation (ORI) 0.3 $1.6M 126k 12.71
SciQuest 0.3 $1.6M 65k 24.05
Streamline Health Solutions (STRM) 0.3 $1.5M 240k 6.45
Arthur J. Gallagher & Co. (AJG) 0.3 $1.5M 37k 41.31
Lowe's Companies (LOW) 0.3 $1.5M 40k 37.91
Artisan Partners (APAM) 0.3 $1.5M 39k 39.45
Cardiovascular Systems 0.2 $1.5M 72k 20.47
Linkedin Corp 0.2 $1.4M 8.2k 176.03
Xoom 0.2 $1.4M 63k 22.84
Snap-on Incorporated (SNA) 0.2 $1.4M 17k 82.70
Calgon Carbon Corporation 0.2 $1.4M 78k 18.10
Whirlpool Corporation (WHR) 0.2 $1.3M 11k 118.44
Bruker Corporation (BRKR) 0.2 $1.4M 71k 19.10
Manhattan Associates (MANH) 0.2 $1.4M 18k 74.30
Insulet Corporation (PODD) 0.2 $1.3M 52k 25.87
Interactive Intelligence Group 0.2 $1.3M 30k 44.36
Affymetrix 0.2 $1.3M 269k 4.72
Procter & Gamble Company (PG) 0.2 $1.3M 16k 77.04
BioScrip 0.2 $1.3M 100k 12.71
ValueVision Media 0.2 $1.3M 364k 3.46
Crawford & Company (CRD.B) 0.2 $1.3M 165k 7.59
MWI Veterinary Supply 0.2 $1.3M 9.7k 132.30
Evercore Partners (EVR) 0.2 $1.2M 30k 41.61
Headwaters Incorporated 0.2 $1.2M 111k 10.90
AZZ Incorporated (AZZ) 0.2 $1.2M 26k 48.18
Computer Task 0.2 $1.2M 56k 21.40
PowerSecure International 0.2 $1.2M 97k 12.71
Aurico Gold 0.2 $1.2M 191k 6.29
Guidewire Software (GWRE) 0.2 $1.2M 31k 38.45
Natural Grocers By Vitamin C (NGVC) 0.2 $1.2M 54k 22.55
Aol 0.2 $1.2M 31k 38.48
Live Nation Entertainment (LYV) 0.2 $1.2M 96k 12.36
Conceptus 0.2 $1.1M 47k 24.15
Imax Corp Cad (IMAX) 0.2 $1.1M 43k 26.72
Barrett Business Services (BBSI) 0.2 $1.2M 22k 52.68
HealthStream (HSTM) 0.2 $1.2M 51k 22.94
Bright Horizons Fam Sol In D (BFAM) 0.2 $1.2M 34k 33.79
Citrix Systems 0.2 $1.1M 15k 72.13
Marsh & McLennan Companies (MMC) 0.2 $1.1M 30k 37.96
Krispy Kreme Doughnuts 0.2 $1.1M 78k 14.44
United Online 0.2 $1.1M 187k 6.03
Akorn 0.2 $1.1M 79k 13.83
Hexcel Corporation (HXL) 0.2 $1.1M 39k 29.01
Silver Wheaton Corp 0.2 $1.1M 34k 31.35
Cardtronics 0.2 $1.1M 39k 27.45
Derma Sciences 0.2 $1.1M 92k 12.08
Catamaran 0.2 $1.1M 21k 53.02
McDonald's Corporation (MCD) 0.2 $1.1M 11k 99.72
Monsanto Company 0.2 $1.1M 10k 105.59
BioMarin Pharmaceutical (BMRN) 0.2 $1.1M 17k 62.23
Wabash National Corporation (WNC) 0.2 $1.1M 105k 10.16
On Assignment 0.2 $1.0M 41k 25.30
Hain Celestial (HAIN) 0.2 $1.0M 17k 61.05
Abaxis 0.2 $1.1M 23k 47.30
Heckmann Corporation 0.2 $1.1M 248k 4.29
Primoris Services (PRIM) 0.2 $1.0M 47k 22.11
Yelp Inc cl a (YELP) 0.2 $1.1M 44k 23.70
Meru Networks 0.2 $1.0M 150k 6.75
UnitedHealth (UNH) 0.2 $998k 17k 57.22
Big 5 Sporting Goods Corporation (BGFV) 0.2 $981k 63k 15.61
Repligen Corporation (RGEN) 0.2 $974k 141k 6.91
Dyax 0.2 $981k 225k 4.36
Dawson Geophysical Company 0.2 $1.0M 34k 30.00
Jamba 0.2 $998k 350k 2.85
Aviat Networks 0.2 $964k 286k 3.37
Manitex International (MNTX) 0.2 $981k 79k 12.40
Devon Energy Corporation (DVN) 0.2 $922k 16k 56.41
Pacific Sunwear of California 0.2 $907k 434k 2.09
Aceto Corporation 0.2 $936k 85k 11.07
Agnico (AEM) 0.2 $936k 23k 41.05
Badger Meter (BMI) 0.2 $926k 17k 53.53
SurModics (SRDX) 0.2 $903k 33k 27.25
Greenbrier Companies (GBX) 0.2 $908k 40k 22.72
USA Technologies 0.2 $943k 360k 2.62
Examworks 0.2 $944k 55k 17.32
Ligand Pharmaceuticals In (LGND) 0.2 $943k 35k 26.65
Omnicell (OMCL) 0.1 $874k 46k 18.89
Globe Specialty Metals 0.1 $799k 57k 13.92
Syneron Medical Ltd ord 0.1 $817k 80k 10.23
Hecla Mining Company (HL) 0.1 $814k 206k 3.95
Energy Recovery (ERII) 0.1 $810k 219k 3.70
Wabtec Corporation (WAB) 0.1 $822k 8.1k 102.11
Alphatec Holdings 0.1 $788k 373k 2.11
Cutera (CUTR) 0.1 $798k 61k 12.99
Callidus Software 0.1 $824k 180k 4.57
Hooker Furniture Corporation (HOFT) 0.1 $807k 51k 15.94
Guidance Software 0.1 $830k 77k 10.85
eGain Communications Corporation (EGAN) 0.1 $819k 95k 8.66
Mcewen Mining 0.1 $833k 291k 2.86
Cisco Systems (CSCO) 0.1 $747k 36k 20.90
Air Methods Corporation 0.1 $749k 16k 48.25
Sequenom 0.1 $764k 184k 4.15
GSI Technology (GSIT) 0.1 $784k 119k 6.59
Twin Disc, Incorporated (TWIN) 0.1 $751k 30k 25.09
Calix (CALX) 0.1 $744k 91k 8.15
Wal-Mart Stores (WMT) 0.1 $683k 9.1k 74.78
Novartis (NVS) 0.1 $670k 9.4k 71.24
PerkinElmer (RVTY) 0.1 $675k 20k 33.63
Investment Technology 0.1 $709k 64k 11.03
Titan International (TWI) 0.1 $674k 32k 21.07
Acuity Brands (AYI) 0.1 $682k 9.8k 69.34
Digi International (DGII) 0.1 $702k 79k 8.93
Great Lakes Dredge & Dock Corporation (GLDD) 0.1 $702k 104k 6.73
OSI Systems (OSIS) 0.1 $673k 11k 62.33
Focus Media Holding 0.1 $652k 24k 26.83
Danaher Corporation (DHR) 0.1 $622k 10k 62.20
Noble Corporation Com Stk 0.1 $618k 16k 38.16
Alexion Pharmaceuticals 0.1 $665k 7.2k 92.17
Rockwood Holdings 0.1 $617k 9.4k 65.47
LeapFrog Enterprises 0.1 $659k 77k 8.55
BofI Holding 0.1 $649k 18k 35.86
Mindspeed Technologies 0.1 $657k 198k 3.32
Pioneer Energy Services 0.1 $613k 74k 8.25
Time Warner 0.1 $596k 10k 57.60
Exxon Mobil Corporation (XOM) 0.1 $609k 6.8k 90.05
eHealth (EHTH) 0.1 $570k 32k 17.87
Trinity Biotech 0.1 $602k 36k 16.87
CECO Environmental (CECO) 0.1 $591k 46k 12.92
Kinder Morgan (KMI) 0.1 $595k 15k 38.65
Tsakos Energy Navigation 0.1 $518k 119k 4.35
Chico's FAS 0.1 $529k 32k 16.79
Anixter International 0.1 $535k 7.7k 69.93
Envestnet (ENV) 0.1 $524k 30k 17.52
Campbell Soup Company (CPB) 0.1 $481k 11k 45.32
Illinois Tool Works (ITW) 0.1 $457k 7.5k 60.93
Alliance Data Systems Corporation (BFH) 0.1 $444k 2.7k 161.75
Forest Laboratories 0.1 $436k 12k 38.05
Illumina (ILMN) 0.1 $486k 9.0k 53.93
Randgold Resources 0.1 $473k 5.5k 86.00
Ametek (AME) 0.1 $450k 10k 43.38
PDF Solutions (PDFS) 0.1 $481k 30k 16.02
Power-One 0.1 $465k 112k 4.14
Solar Senior Capital 0.1 $460k 24k 19.20
Comcast Corporation (CMCSA) 0.1 $381k 9.1k 42.02
Mylan 0.1 $417k 14k 28.97
International Business Machines (IBM) 0.1 $420k 2.0k 213.41
Dollar Tree (DLTR) 0.1 $398k 8.2k 48.49
Aeropostale 0.1 $410k 30k 13.59
Dean Foods Company 0.1 $422k 23k 18.13
Fastenal Company (FAST) 0.1 $411k 8.0k 51.38
FuelCell Energy 0.1 $381k 405k 0.94
Mednax (MD) 0.1 $386k 4.3k 89.56
HeartWare International 0.1 $383k 4.3k 88.39
Northern Technologies International (NTIC) 0.1 $410k 31k 13.43
Visteon Corporation (VC) 0.1 $425k 7.4k 57.70
Joy Global 0.1 $357k 6.0k 59.50
American Express Company (AXP) 0.1 $325k 4.8k 67.54
Automatic Data Processing (ADP) 0.1 $360k 5.5k 65.10
Commercial Metals Company (CMC) 0.1 $340k 22k 15.85
Mohawk Industries (MHK) 0.1 $366k 3.2k 113.07
Compuware Corporation 0.1 $369k 30k 12.50
Anheuser-Busch InBev NV (BUD) 0.1 $326k 3.3k 99.42
Green Mountain Coffee Roasters 0.1 $321k 5.7k 56.71
Rosetta Resources 0.1 $344k 7.2k 47.61
Trinity Industries (TRN) 0.1 $350k 7.7k 45.29
Changyou 0.1 $365k 13k 28.86
Endologix 0.1 $344k 21k 16.16
Heska Corporation 0.1 $361k 39k 9.29
Acquity 0.1 $375k 59k 6.35
Zoetis Inc Cl A (ZTS) 0.1 $330k 9.9k 33.38
Packaging Corporation of America (PKG) 0.1 $311k 6.9k 44.82
IAC/InterActive 0.1 $316k 7.1k 44.71
Clean Harbors (CLH) 0.1 $317k 5.4k 58.18
American Eagle Outfitters (AEO) 0.1 $290k 16k 18.71
Everest Re Group (EG) 0.1 $277k 2.1k 130.05
Royal Dutch Shell 0.1 $285k 4.4k 65.25
Visa (V) 0.1 $265k 1.6k 169.55
Amazon (AMZN) 0.1 $308k 1.2k 266.44
Diodes Incorporated (DIOD) 0.1 $307k 15k 20.98
JDS Uniphase Corporation 0.1 $291k 22k 13.36
Teleflex Incorporated (TFX) 0.1 $300k 3.6k 84.44
Energy Transfer Partners 0.1 $314k 6.2k 50.63
Cheniere Energy (LNG) 0.1 $313k 11k 27.99
Capstone Turbine Corporation 0.1 $273k 303k 0.90
Ixia 0.1 $315k 15k 21.62
Teradyne (TER) 0.1 $277k 17k 16.22
Superior Energy Services 0.1 $284k 11k 25.94
Anika Therapeutics (ANIK) 0.1 $274k 19k 14.53
First American Financial (FAF) 0.1 $306k 12k 25.60
Intrepid Potash 0.1 $278k 15k 18.75
Nxp Semiconductors N V (NXPI) 0.1 $275k 9.1k 30.27
Emerald Oil 0.1 $299k 43k 7.04
Bristol Myers Squibb (BMY) 0.0 $217k 5.3k 41.13
Copart (CPRT) 0.0 $226k 6.6k 34.24
LKQ Corporation (LKQ) 0.0 $251k 12k 21.79
Johnson Controls 0.0 $206k 5.9k 35.08
E.I. du Pont de Nemours & Company 0.0 $223k 4.5k 49.13
Waddell & Reed Financial 0.0 $260k 5.9k 43.83
Symmetry Medical 0.0 $257k 23k 11.44
McKesson Corporation (MCK) 0.0 $204k 1.9k 107.99
Williams Companies (WMB) 0.0 $238k 6.3k 37.49
Onyx Pharmaceuticals 0.0 $250k 2.8k 88.81
Enterprise Products Partners (EPD) 0.0 $243k 4.0k 60.28
Lindsay Corporation (LNN) 0.0 $228k 2.6k 88.34
Nordson Corporation (NDSN) 0.0 $248k 3.8k 65.89
DigitalGlobe 0.0 $252k 8.7k 28.86
Ada-es 0.0 $221k 8.3k 26.58
GenMark Diagnostics 0.0 $252k 20k 12.90
Covidien 0.0 $221k 3.3k 67.83
Golar Lng Partners Lp unit 0.0 $233k 7.0k 33.06
Jazz Pharmaceuticals (JAZZ) 0.0 $238k 4.2k 56.03
Duke Energy (DUK) 0.0 $227k 3.1k 72.64
Chembio Diagnostics 0.0 $253k 50k 5.06
Arc Document Solutions (ARC) 0.0 $224k 75k 2.99
EXACT Sciences Corporation (EXAS) 0.0 $166k 17k 9.82
Platinum Group Metals 0.0 $170k 120k 1.42
Tahoe Resources 0.0 $176k 10k 17.60
New Mountain Finance Corp (NMFC) 0.0 $184k 13k 14.65
4068594 Enphase Energy (ENPH) 0.0 $169k 27k 6.22
Sandstorm Gold (SAND) 0.0 $190k 20k 9.47
North Amern Palladium 0.0 $123k 86k 1.43
Atlantic Power Corporation 0.0 $117k 24k 4.93
Gsv Cap Corp 0.0 $114k 14k 8.24
Coronado Biosciences Inc. Common 0.0 $101k 10k 9.72
Aegon 0.0 $82k 14k 6.04
PDL BioPharma 0.0 $84k 12k 7.31
Portugal Telecom, SGPS 0.0 $75k 15k 4.98
Idenix Pharmaceuticals 0.0 $70k 20k 3.53
Cosi 0.0 $43k 62k 0.69
Joe's Jeans 0.0 $68k 40k 1.71
Nevsun Res 0.0 $80k 21k 3.82
Just Energy Group 0.0 $84k 13k 6.57
Kior Inc. Cl A 0.0 $57k 12k 4.64
Pretium Res Inc Com Isin# Ca74 0.0 $79k 10k 7.90
Roundy's 0.0 $75k 11k 6.57
Urologix (ULGX) 0.0 $20k 36k 0.55