Austin W. Marxe and David M. Greenhouse

Austin W. Marxe and David M. Greenhouse as of March 31, 2012

Portfolio Holdings for Austin W. Marxe and David M. Greenhouse

Austin W. Marxe and David M. Greenhouse holds 203 positions in its portfolio as reported in the March 2012 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Kopin Corporation (KOPN) 3.3 $26M 6.5M 4.07
Ceva (CEVA) 3.0 $24M 1.1M 22.71
Entropic Communications 3.0 $24M 4.1M 5.83
Ultra Clean Holdings (UCTT) 2.7 $22M 2.9M 7.54
FSI International 2.7 $21M 4.3M 4.89
OmniVision Technologies 2.2 $17M 870k 20.00
89608 E-ink Holdings Incorporated 6 1.8 $15M 11M 1.31
Broadwind Energy 1.8 $14M 30M 0.47
Global Power Equipment Grp I 1.8 $14M 502k 27.70
Titan Machinery (TITN) 1.7 $14M 486k 28.20
MIPS Technologies 1.7 $14M 2.5M 5.44
MicroFinancial Incorporated 1.6 $12M 1.8M 6.85
KMG Chemicals 1.6 $12M 686k 18.05
Natus Medical 1.5 $12M 993k 11.93
LSB Industries (LXU) 1.5 $12M 300k 38.92
Ada-es 1.5 $12M 478k 24.31
Adept Technology 1.4 $11M 2.3M 5.05
OCZ Technology 1.4 $11M 1.6M 6.98
Plug Power (PLUG) 1.4 $11M 8.5M 1.31
Pacira Pharmaceuticals (PCRX) 1.2 $9.7M 840k 11.54
2060000 Power Solutions International (PSIX) 1.2 $9.7M 590k 16.50
PFSweb 1.2 $9.6M 2.4M 3.94
Sangamo Biosciences (SGMO) 1.2 $9.2M 1.9M 4.90
ZIOPHARM Oncology 1.2 $9.2M 1.7M 5.40
Myr (MYRG) 1.1 $8.8M 490k 17.86
iPass 1.1 $8.5M 3.3M 2.60
Body Central Acquisition Corporation 1.1 $8.4M 290k 29.02
Innospec (IOSP) 1.0 $8.2M 271k 30.38
SeaChange International 1.0 $8.0M 1.0M 7.78
Ramtron International 1.0 $8.0M 4.0M 1.99
Pure Technologies 1.0 $7.7M 1.9M 4.13
FuelCell Energy 1.0 $7.7M 4.9M 1.57
Golfsmith International Holdings 1.0 $7.7M 1.8M 4.34
Pctel 0.9 $7.5M 1.1M 6.65
Pacific Premier Ban 0.9 $7.5M 938k 8.00
Chinacast Education Corporation (CAST) 0.9 $7.4M 1.8M 4.24
Image Sensing Systems 0.9 $7.4M 1.1M 6.65
AuthenTec 0.9 $7.4M 2.3M 3.15
SRS Labs (SRSL) 0.9 $7.2M 1.0M 6.95
Flow International Corporation 0.9 $7.1M 1.8M 4.02
Magnetek 0.9 $6.9M 361k 19.24
Overland Storage 0.9 $6.9M 3.1M 2.21
Verenium Corporation 0.8 $6.7M 1.6M 4.15
PowerSecure International 0.8 $6.5M 1.1M 6.06
Inovio Pharmaceuticals 0.8 $6.5M 9.8M 0.66
Response Genetics (RGDXQ) 0.8 $6.5M 3.3M 1.94
Alphatec Holdings 0.8 $6.4M 2.7M 2.37
Avantair 0.8 $6.3M 6.3M 1.00
LRAD Corporation 0.8 $6.1M 4.0M 1.54
Iteris (ITI) 0.8 $6.1M 4.1M 1.49
Intermap Technologies Corporation 0.7 $5.9M 15M 0.39
Destination Maternity Corporation 0.7 $5.6M 300k 18.57
Ellie Mae 0.7 $5.5M 494k 11.16
566456 Carbon Natural Gas 0.7 $5.6M 11M 0.51
TiVo 0.7 $5.3M 446k 11.99
Raptor Pharmaceutical 0.7 $5.4M 800k 6.76
Digimarc Corporation (DMRC) 0.7 $5.3M 190k 27.94
Duckwall-ALCO Stores (DUCK) 0.7 $5.3M 597k 8.94
Trans World Corporation (TWOC) 0.7 $5.2M 1.6M 3.30
Full House Resorts (FLL) 0.7 $5.1M 1.8M 2.84
Pharmacyclics 0.6 $5.1M 183k 27.76
inContact, Inc . 0.6 $5.0M 897k 5.58
CPI Aerostructures (CVU) 0.6 $4.9M 331k 14.87
4612586 Waterfurnace Renewable Energy 0.6 $4.9M 240k 20.33
U.S. Auto Parts Network 0.6 $4.8M 1.3M 3.61
Multiband Corporation 0.6 $4.7M 1.6M 3.01
ParkerVision 0.6 $4.6M 4.3M 1.07
PRGX Global 0.6 $4.5M 723k 6.29
Repligen Corporation (RGEN) 0.6 $4.5M 770k 5.90
Clean Diesel Technologies 0.6 $4.5M 1.1M 4.03
Lightbridge Corporation 0.6 $4.5M 1.4M 3.25
World Energy Solutions 0.6 $4.4M 921k 4.78
SMART Technologies 0.5 $4.1M 1.4M 2.97
89608 E-ink Holdings Incorporated 6 0.5 $4.1M 1.9M 2.16
Summer Infant 0.5 $3.7M 624k 6.00
Transgenomic 0.5 $3.6M 3.5M 1.03
Remark Media 0.5 $3.5M 589k 6.02
BTU International 0.4 $3.5M 1.1M 3.09
Threshold Pharmaceuticals 0.4 $3.5M 400k 8.80
Uranium Resources 0.4 $3.4M 3.8M 0.91
Riverview Ban (RVSB) 0.4 $3.4M 1.5M 2.26
89608 E-ink Holdings Incorporated 6 0.4 $3.4M 4.5M 0.75
Unify Corporation (UNFY) 0.4 $3.4M 2.0M 1.69
937716 Parametric Sound Corporation 0.4 $3.1M 696k 4.40
89608 E-ink Holdings Incorporated 6 0.4 $3.0M 3.0M 1.00
57TH STR GEN ACQUISITION Cor 0.3 $2.8M 756k 3.67
121022 Invivo Therapeutics Holdings 0.3 $2.7M 1.1M 2.48
DSP 0.3 $2.6M 393k 6.66
Xebec Adsorption (XEBEQ) 0.3 $2.6M 12M 0.22
Heelys 0.3 $2.5M 1.1M 2.20
Support 0.3 $2.5M 781k 3.15
Silicon Image 0.3 $2.4M 400k 5.88
EnteroMedics 0.3 $2.4M 1.1M 2.26
Ecotality 0.3 $2.3M 2.3M 0.97
89608 E-ink Holdings Incorporated 6 0.3 $2.1M 9.3M 0.23
Strategic Diagnostics 0.3 $2.1M 1.1M 1.88
Amicus Therapeutics (FOLD) 0.2 $1.9M 369k 5.28
SoundBite Communications 0.2 $2.0M 676k 2.98
Ur-energy (URG) 0.2 $2.0M 1.9M 1.06
Uni-Pixel 0.2 $2.0M 374k 5.38
ADVENTRX Pharmaceuticals 0.2 $1.8M 2.6M 0.69
LeMaitre Vascular (LMAT) 0.2 $1.8M 312k 5.89
89608 E-ink Holdings Incorporated 6 0.2 $1.9M 860k 2.16
89608 E-ink Holdings Incorporated 6 0.2 $1.8M 968k 1.89
Remedent (REMI) 0.2 $1.8M 4.5M 0.40
Graymark Healthcare 0.2 $1.8M 3.6M 0.50
Tekmira Pharmaceuticals Corporation 0.2 $1.6M 647k 2.52
Ym Biosciences 0.2 $1.6M 840k 1.86
WorldHeart Corporation (WHRT) 0.2 $1.5M 5.4M 0.28
89608 E-ink Holdings Incorporated 6 0.2 $1.5M 11M 0.14
1802140 Genenews 0.2 $1.5M 9.5M 0.16
2013973 Ico Therapeutics 0.2 $1.5M 6.0M 0.25
MaxLinear (MXL) 0.2 $1.5M 260k 5.57
89608 E-ink Holdings Incorporated 6 0.2 $1.4M 191k 7.39
NOVA MEASURING Instruments L (NVMI) 0.2 $1.4M 152k 8.96
Enova Systems (ENA) 0.2 $1.3M 4.1M 0.33
Nexxus Lighting (NEXS) 0.2 $1.3M 1.7M 0.77
Dreams (DRJ) 0.2 $1.4M 500k 2.75
Axion Power International 0.2 $1.4M 3.4M 0.40
89608 E-ink Holdings Incorporated 6 0.2 $1.4M 750k 1.80
Verastem 0.2 $1.4M 125k 10.93
Dynavax Technologies Corporation 0.2 $1.3M 360k 3.60
Cardica 0.1 $1.1M 500k 2.14
Openwave Systems 0.1 $1.0M 450k 2.27
CTPartners Executive Search (CTPR) 0.1 $1.0M 162k 6.29
Neophotonics Corp 0.1 $1.0M 221k 4.73
1763392 Graphon Corporation 0.1 $990k 5.5M 0.18
Dover Saddlery 0.1 $923k 209k 4.42
Cardionet 0.1 $982k 319k 3.08
Palatin Technologies 0.1 $986k 1.4M 0.73
89608 E-ink Holdings Incorporated 6 0.1 $929k 430k 2.16
89608 E-ink Holdings Incorporated 6 0.1 $945k 274k 3.45
Bakers Footwear (BKRS) 0.1 $855k 1.1M 0.75
89608 E-ink Holdings Incorporated 6 0.1 $860k 11M 0.08
89608 E-ink Holdings Incorporated 6 0.1 $855k 4.5M 0.19
Ossen Innovation 0.1 $840k 706k 1.19
4068594 Enphase Energy (ENPH) 0.1 $879k 120k 7.34
CytRx Corporation 0.1 $800k 2.0M 0.40
89608 E-ink Holdings Incorporated 6 0.1 $821k 3.6M 0.23
89608 E-ink Holdings Incorporated 6 0.1 $762k 1.2M 0.62
Spectral Diagnostics 0.1 $765k 3.2M 0.24
89608 E-ink Holdings Incorporated 6 0.1 $735k 1.5M 0.49
89608 E-ink Holdings Incorporated 6 0.1 $700k 2.1M 0.33
Market Leader 0.1 $736k 201k 3.66
InfuSystem Holdings (INFU) 0.1 $692k 357k 1.94
Immersion Corporation (IMMR) 0.1 $661k 121k 5.46
Noble Roman's (NROM) 0.1 $620k 1.0M 0.60
89608 E-ink Holdings Incorporated 6 0.1 $615k 1.5M 0.41
Active Power 0.1 $588k 754k 0.78
89608 E-ink Holdings Incorporated 6 0.1 $551k 7.9M 0.07
89608 E-ink Holdings Incorporated 6 0.1 $526k 421k 1.25
Bcd Semiconductor Mfg 0.1 $559k 98k 5.71
Gaiam 0.1 $377k 95k 3.98
89608 E-ink Holdings Incorporated 6 0.1 $359k 455k 0.79
89608 E-ink Holdings Incorporated 6 0.1 $385k 1.8M 0.22
826783 Here Media 0.1 $391k 1.0M 0.38
89608 E-ink Holdings Incorporated 6 0.0 $329k 2.1M 0.16
89608 E-ink Holdings Incorporated 6 0.0 $293k 147k 1.99
952365 Precision Optics Corporation 0.0 $320k 320k 1.00
EpiCept Corporation (EPCT) 0.0 $352k 1.7M 0.21
Citi Trends (CTRN) 0.0 $254k 22k 11.45
CytRx Corporation 0.0 $216k 2.4M 0.09
Dreams (DRJ) 0.0 $260k 90k 2.90
89608 E-ink Holdings Incorporated 6 0.0 $225k 1.9M 0.12
89608 E-ink Holdings Incorporated 6 0.0 $270k 1.0M 0.27
89608 E-ink Holdings Incorporated 6 0.0 $250k 2.5M 0.10
Medwell Capital (MWC) 0.0 $221k 2.8M 0.08
Stanley Furniture 0.0 $123k 26k 4.78
89608 E-ink Holdings Incorporated 6 0.0 $126k 180k 0.70
89608 E-ink Holdings Incorporated 6 0.0 $124k 4.1M 0.03
89608 E-ink Holdings Incorporated 6 0.0 $138k 2.8M 0.05
89608 E-ink Holdings Incorporated 6 0.0 $142k 788k 0.18
89608 E-ink Holdings Incorporated 6 0.0 $145k 7.3M 0.02
89608 E-ink Holdings Incorporated 6 0.0 $131k 1.9M 0.07
Interplay Entertainment (IPLY) 0.0 $183k 9.1M 0.02
SH SOLE 2500000 57th Street General Acq @11.50 warrants 0.0 $121k 635k 0.19
Yuhe International (YUII) 0.0 $118k 118k 1.00
89608 E-ink Holdings Incorporated 6 0.0 $107k 671k 0.16
89608 E-ink Holdings Incorporated 6 0.0 $42k 190k 0.22
89608 E-ink Holdings Incorporated 6 0.0 $87k 61k 1.44
89608 E-ink Holdings Incorporated 6 0.0 $88k 1.3M 0.07
89608 E-ink Holdings Incorporated 6 0.0 $89k 216k 0.41
89608 E-ink Holdings Incorporated 6 0.0 $72k 3.6M 0.02
89608 E-ink Holdings Incorporated 6 0.0 $90k 4.5M 0.02
89608 E-ink Holdings Incorporated 6 0.0 $45k 1.5M 0.03
Chase Packaging Corporation (WHLT) 0.0 $34k 685k 0.05
89608 E-ink Holdings Incorporated 6 0.0 $19k 940k 0.02
89608 E-ink Holdings Incorporated 6 0.0 $0 2.6M 0.00
89608 E-ink Holdings Incorporated 6 0.0 $18k 176k 0.10
89608 E-ink Holdings Incorporated 6 0.0 $35k 384k 0.09
89608 E-ink Holdings Incorporated 6 0.0 $26k 518k 0.05
89608 E-ink Holdings Incorporated 6 0.0 $12k 384k 0.03
89608 E-ink Holdings Incorporated 6 0.0 $28k 690k 0.04
89608 E-ink Holdings Incorporated 6 0.0 $35k 1.8M 0.02
89608 E-ink Holdings Incorporated 6 0.0 $12k 1.1M 0.01
89608 E-ink Holdings Incorporated 6 0.0 $11k 263k 0.04
89608 E-ink Holdings Incorporated 6 0.0 $0 760k 0.00
89608 E-ink Holdings Incorporated 6 0.0 $0 760k 0.00
89608 E-ink Holdings Incorporated 6 0.0 $16k 388k 0.04
Familymeds (FMRX) 0.0 $34k 1.1M 0.03
Integral Vision (INVI) 0.0 $37k 1.9M 0.02
1000000 Converted Organics @1.30 12/31 warrants 0.0 $0 1.5M 0.00
uWink (UWKI) 0.0 $0 1.0M 0.00