Oberweis Asset Management

Oberweis Asset Management as of Dec. 31, 2011

Portfolio Holdings for Oberweis Asset Management

Oberweis Asset Management holds 162 positions in its portfolio as reported in the December 2011 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Acacia Research Corporation (ACTG) 4.5 $17M 451k 36.51
Twin Disc, Incorporated (TWIN) 4.0 $15M 402k 36.32
Spreadtrum Communications 3.4 $12M 582k 20.88
Amerigon Incorporated 3.3 $12M 847k 14.26
Mistras (MG) 2.5 $9.2M 361k 25.49
Imax Corp Cad (IMAX) 2.2 $8.2M 445k 18.33
Sxc Health Solutions Corp 2.2 $8.0M 142k 56.48
Web 2.1 $7.8M 679k 11.45
Kenexa Corporation 2.0 $7.4M 276k 26.70
Body Central Acquisition Corporation 2.0 $7.1M 286k 24.96
Medidata Solutions 1.9 $6.8M 311k 21.75
BroadSoft 1.9 $6.8M 225k 30.20
GeoResources 1.8 $6.6M 224k 29.31
DealerTrack Holdings 1.7 $6.0M 221k 27.26
Francescas Hldgs Corp 1.6 $5.7M 330k 17.30
G-III Apparel (GIII) 1.4 $4.9M 197k 24.91
Gulfport Energy Corporation 1.3 $4.8M 162k 29.45
HealthStream (HSTM) 1.3 $4.7M 254k 18.45
Wi-lan 1.2 $4.5M 789k 5.74
Interactive Intelligence Group 1.2 $4.5M 198k 22.92
BofI Holding 1.2 $4.4M 274k 16.25
Ceva (CEVA) 1.2 $4.4M 145k 30.26
Carrizo Oil & Gas 1.2 $4.3M 165k 26.35
Flotek Industries 1.2 $4.4M 438k 9.96
IPC The Hospitalist Company 1.2 $4.2M 92k 45.71
Hi-Tech Pharmacal 1.1 $3.8M 98k 38.89
51job 1.0 $3.7M 87k 41.94
21vianet Group (VNET) 1.0 $3.7M 400k 9.15
NetEase (NTES) 1.0 $3.6M 80k 44.85
IPG Photonics Corporation (IPGP) 1.0 $3.6M 106k 33.87
Vera Bradley (VRA) 1.0 $3.6M 111k 32.25
Endologix 1.0 $3.5M 308k 11.48
FARO Technologies (FARO) 1.0 $3.5M 77k 46.01
HMS Holdings 0.9 $3.3M 104k 31.98
Digimarc Corporation (DMRC) 0.9 $3.3M 137k 23.89
DUSA Pharmaceuticals 0.9 $3.2M 737k 4.38
Sohu 0.9 $3.2M 64k 50.01
Taleo Corporation 0.9 $3.1M 81k 38.69
Aruba Networks 0.9 $3.2M 171k 18.52
Mitcham Industries 0.9 $3.1M 142k 21.84
Impax Laboratories 0.8 $3.0M 150k 20.17
ViroPharma Incorporated 0.8 $3.0M 110k 27.39
OpenTable 0.8 $2.9M 75k 39.13
Acme Packet 0.8 $2.9M 94k 30.90
Northern Oil & Gas 0.8 $2.8M 115k 23.98
Zeltiq Aesthetics 0.8 $2.7M 242k 11.36
ExlService Holdings (EXLS) 0.7 $2.6M 117k 22.37
Sina Corporation 0.7 $2.5M 48k 51.99
Zix Corporation 0.7 $2.5M 882k 2.82
On Assignment 0.7 $2.5M 222k 11.18
Keynote Systems 0.7 $2.5M 121k 20.54
Ada-es 0.7 $2.4M 107k 22.64
CPI Aerostructures (CVU) 0.7 $2.4M 200k 11.87
Ints Intl 0.6 $2.3M 292k 7.95
LogMeIn 0.6 $2.3M 59k 38.54
China Kanghui Holdings 0.6 $2.2M 151k 14.74
Kadant (KAI) 0.6 $2.1M 94k 22.61
Bryn Mawr Bank 0.6 $2.1M 108k 19.49
Teavana Hldgs 0.6 $2.1M 112k 18.78
Silicom (SILC) 0.6 $2.0M 117k 17.54
Panhandle Oil and Gas 0.6 $2.0M 61k 32.81
New Oriental Education & Tech 0.5 $1.9M 80k 24.05
Datalink Corporation 0.5 $1.8M 223k 8.26
Tangoe 0.5 $1.8M 120k 15.40
Cardinal Financial Corporation 0.5 $1.8M 170k 10.74
LeCROY Corporation 0.5 $1.8M 214k 8.41
IXYS Corporation 0.5 $1.6M 151k 10.83
Changyou 0.5 $1.6M 70k 23.06
Lydall 0.4 $1.6M 169k 9.49
Mitek Systems (MITK) 0.4 $1.6M 218k 7.25
Align Technology (ALGN) 0.4 $1.5M 65k 23.72
Hardinge 0.4 $1.6M 195k 8.05
Multi-Color Corporation 0.4 $1.6M 60k 25.74
Rue21 0.4 $1.5M 71k 21.60
Procera Networks 0.4 $1.5M 95k 15.58
Hurco Companies (HURC) 0.4 $1.5M 70k 21.01
Syneron Medical Ltd ord 0.4 $1.4M 127k 11.07
Silicon Graphics International 0.4 $1.4M 123k 11.46
Rogers Corporation (ROG) 0.4 $1.4M 37k 36.85
VASCO Data Security International 0.4 $1.4M 210k 6.52
Travelzoo 0.4 $1.4M 55k 24.57
Stamps 0.4 $1.4M 52k 26.14
Eagle Ban (EGBN) 0.4 $1.3M 92k 14.54
AdCare Health Systems 0.4 $1.3M 338k 3.98
Virtusa Corporation 0.4 $1.3M 89k 14.49
Basic Energy Services 0.3 $1.3M 65k 19.71
United Financial Ban 0.3 $1.2M 78k 16.10
ClearOne Communications 0.3 $1.2M 284k 4.32
Titan Machinery (TITN) 0.3 $1.2M 55k 21.73
AutoNavi Holdings 0.3 $1.2M 120k 10.03
AuthenTec 0.3 $1.2M 374k 3.21
Summer Infant 0.3 $1.2M 165k 7.04
Richmont Mines 0.3 $1.2M 108k 10.76
Callon Pete Co Del Com Stk 0.3 $1.1M 222k 4.97
RealPage 0.3 $1.1M 43k 25.27
iRobot Corporation (IRBT) 0.3 $1.0M 35k 29.85
Kemet Corporation Cmn 0.3 $1.0M 148k 7.05
Stratasys 0.3 $1.0M 33k 30.40
Manitex International (MNTX) 0.3 $1.0M 237k 4.24
Youku 0.3 $1.0M 65k 15.68
Zillow 0.3 $1.0M 45k 22.48
LGL (LGL) 0.3 $943k 129k 7.33
Allot Communications (ALLT) 0.2 $921k 61k 15.20
Roadrunner Transportation Services Hold. 0.2 $875k 62k 14.14
Cognex Corporation (CGNX) 0.2 $844k 24k 35.80
Netqin Mobile 0.2 $787k 149k 5.27
eGain Communications Corporation (EGAN) 0.2 $759k 110k 6.91
Wayside Technology (CLMB) 0.2 $711k 58k 12.20
Advisory Board Company 0.2 $675k 9.1k 74.18
Berkshire Hills Ban (BHLB) 0.2 $690k 31k 22.19
Momenta Pharmaceuticals 0.2 $690k 40k 17.38
Ceragon Networks (CRNT) 0.2 $701k 91k 7.69
BSQUARE Corporation 0.2 $684k 200k 3.42
Clearfield (CLFD) 0.2 $642k 84k 7.62
First Savings Financial (FSFG) 0.2 $648k 38k 16.92
Active Power 0.2 $603k 913k 0.66
CAI International 0.2 $617k 40k 15.46
Financial Engines 0.2 $630k 28k 22.34
LML Payment Systems 0.2 $594k 255k 2.33
Silicon Image 0.1 $547k 116k 4.70
MWI Veterinary Supply 0.1 $532k 8.0k 66.50
Qihoo 360 Technologies Co Lt 0.1 $497k 32k 15.68
McDonald's Corporation (MCD) 0.1 $488k 4.9k 100.39
Tesco Corporation 0.1 $466k 37k 12.63
Imris (IMRSQ) 0.1 $482k 179k 2.70
iSoftStone Holdings 0.1 $438k 50k 8.76
Sagent Pharmaceuticals 0.1 $449k 21k 21.01
Microsoft Corporation (MSFT) 0.1 $409k 16k 25.94
Baidu (BIDU) 0.1 $349k 3.0k 116.33
Johnson & Johnson (JNJ) 0.1 $321k 4.9k 65.59
Optical Cable Corporation (OCC) 0.1 $328k 103k 3.19
QKL Stores 0.1 $332k 468k 0.71
Intel Corporation (INTC) 0.1 $273k 11k 24.25
Walgreen Company 0.1 $288k 8.7k 33.10
BHP Billiton (BHP) 0.1 $306k 4.3k 70.70
Chase Corporation 0.1 $281k 20k 13.91
Syswin (SYSW) 0.1 $283k 308k 0.92
Coca-Cola Company (KO) 0.1 $251k 3.6k 69.92
Wal-Mart Stores (WMT) 0.1 $253k 4.2k 59.78
General Electric Company 0.1 $266k 15k 17.89
Travelers Companies (TRV) 0.1 $244k 4.1k 59.19
Amgen (AMGN) 0.1 $244k 3.8k 64.28
Magic Software Enterprises (MGIC) 0.1 $253k 49k 5.17
Exxon Mobil Corporation (XOM) 0.1 $213k 2.5k 84.73
Abbott Laboratories (ABT) 0.1 $202k 3.6k 56.11
ZOLL Medical Corporation 0.1 $234k 3.7k 63.24
Select Comfort 0.1 $226k 10k 21.73
NN (NNBR) 0.1 $207k 35k 6.01
PROS Holdings (PRO) 0.1 $187k 13k 14.84
Synergetics USA 0.1 $186k 25k 7.38
Caribou Coffee Company 0.0 $146k 11k 13.90
Barnwell Industries (BRN) 0.0 $143k 53k 2.69
Mastech Holdings (MHH) 0.0 $109k 29k 3.74
Tii Network Technologies (TIII) 0.0 $91k 62k 1.48
XATA Corporation 0.0 $97k 76k 1.27
Hercules Offshore 0.0 $81k 18k 4.45
KSW (KSW) 0.0 $57k 17k 3.31
Oclaro 0.0 $81k 29k 2.81
Magnum Hunter Resources Corporation 0.0 $81k 15k 5.40
Charm Communications (CHRM) 0.0 $90k 10k 8.69
Orbit/fr (ORFR) 0.0 $59k 62k 0.95
Senesco Technologies 0.0 $13k 50k 0.26