0001144204-14-009221.txt : 20140214 0001144204-14-009221.hdr.sgml : 20140214 20140214113051 ACCESSION NUMBER: 0001144204-14-009221 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20131231 FILED AS OF DATE: 20140214 DATE AS OF CHANGE: 20140214 EFFECTIVENESS DATE: 20140214 FILER: COMPANY DATA: COMPANY CONFORMED NAME: OBERWEIS ASSET MANAGEMENT INC/ CENTRAL INDEX KEY: 0000937886 IRS NUMBER: 364106772 STATE OF INCORPORATION: MA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-04688 FILM NUMBER: 14612745 BUSINESS ADDRESS: STREET 1: 3333 WARRENVILLE ROAD STREET 2: SUITE 500 CITY: LISLE STATE: IL ZIP: 60532 BUSINESS PHONE: 6305772300 MAIL ADDRESS: STREET 1: 3333 WARRENVILLE ROAD STREET 2: SUITE 500 CITY: LISLE STATE: IL ZIP: 60532 13F-HR 1 primary_doc.xml 13F-HR LIVE false false false 0000937886 XXXXXXXX 12-31-2013 12-31-2013 false OBERWEIS ASSET MANAGEMENT INC/

3333 Warrenville Road Suite 500 Lisle IL 60532

13F HOLDINGS REPORT 028-04688 N Patrick B. Joyce 800-323-6166 /s/ Patrick B. Joyce Lisle IL 02-11-2014 0 148 412923 INFORMATION TABLE 2 infotable.xml 21Vianet Group, Inc. - ADR com 90138A103 20101 854640 SH SOLE 430800 0 423840 500.COM com 33829R100 7391 208960 SH SOLE 188300 0 20660 51Job Inc. ADR com 316827104 982 12600 SH SOLE 12600 0 0 8X8 Inc. com 282914100 1575 155200 SH SOLE 155200 0 0 AVG Technologies com N07831105 1509 87685 SH SOLE 75700 0 11985 Acadia Healthcare Co., Inc. com 00404A109 975 20600 SH SOLE 20600 0 0 Advanced Emissions Solutions, com 00770c101 277 5100 SH SOLE 5100 0 0 Advisory Board Co. com 00762W107 8172 128350 SH SOLE 32500 0 95850 Alcatel-Lucent Spon ADR com 013904305 206 46900 SH SOLE 46900 0 0 Ambarella, Inc. com G037AX101 3131 92400 SH SOLE 92400 0 0 Amgen, Inc. com 031162100 327 2867 SH SOLE 0 0 2867 Apparel Holding Corp. com 92719W108 2405 78400 SH SOLE 77300 0 1100 Apple, Inc. com 037833100 288 513 SH SOLE 0 0 513 Attunity Ltd. com M15332121 636 61410 SH SOLE 55700 0 5710 Autohome, Inc. ADR com 05278c107 1464 40000 SH SOLE 40000 0 0 BHP Billiton Ltd. ADR com 088606108 273 4005 SH SOLE 0 0 4005 Bancorp, Inc./The com 05969A105 1740 97128 SH SOLE 86400 0 10728 Bank of New York Mellon Corp. com 064058100 222 6358 SH SOLE 0 0 6358 Barrett Business Services com 068463108 8778 94651 SH SOLE 13205 0 81446 Bitauto com 091727107 3349 104800 SH SOLE 100000 0 4800 Bofi Holding, Inc. com 05566U108 887 11305 SH SOLE 6776 0 4529 Bonanza Creek Energy, Inc. com 097793103 9554 219774 SH SOLE 57800 0 161974 Bryn Mawr Bank Corp. com 117665109 371 12300 SH SOLE 12300 0 0 CalAmp Corp. com 128126109 1275 45600 SH SOLE 45600 0 0 Callidus Software Inc. com 13123E500 1331 96930 SH SOLE 67400 0 29530 Callon Petroleum Corp. com 13123X102 346 53000 SH SOLE 53000 0 0 Canadian Solar, Inc. com 136635109 4354 146000 SH SOLE 130000 0 16000 Catamaran Corp. com 148887102 220 4630 SH SOLE 0 0 4630 China Lodging Group-Spon ADS com 16949N109 3046 100000 SH SOLE 100000 0 0 China Mobile Games & Entertain com 16952T100 1654 65550 SH SOLE 41250 0 24300 Comstock Hldg Companies, Inc. com 205684103 141 70500 SH SOLE 70500 0 0 Consumer Portfolio Services com 210502100 794 84550 SH SOLE 79200 0 5350 Cyberonics, Inc. com 23251P102 6782 103667 SH SOLE 26500 0 77167 Datawatch Corp. com 237917208 1129 33190 SH SOLE 17400 0 15790 Dealertrack Technologies, Inc. com 242309102 1856 38600 SH SOLE 38600 0 0 Diamondback Energy Inc. com 25278X109 1253 23700 SH SOLE 23700 0 0 Diodes, Inc. com 254543101 876 37200 SH SOLE 37200 0 0 E-Commerce China Spon ADR com 26833A105 1003 105000 SH SOLE 100000 0 5000 EPL Oil & Gas com 26883D108 1379 48400 SH SOLE 48400 0 0 Eagle Bancorp, Inc. com 268948106 232 7580 SH SOLE 7580 0 0 Ehealth, Inc. com 28238P109 2060 44300 SH SOLE 44300 0 0 Encore Capital Group, Inc. com 292554102 221 4400 SH SOLE 4400 0 0 Endologix, Inc. com 29266S106 1503 86200 SH SOLE 86200 0 0 Envestnet, Inc. com 29404K106 9004 223422 SH SOLE 78200 0 145222 Evolution Petroleum Corp. com 30049A107 525 42550 SH SOLE 41600 0 950 Expedia, Inc. com 30212P303 356 5117 SH SOLE 5007 0 110 Extreme Networks, Inc. com 30226D106 115 16500 SH SOLE 16500 0 0 Exxon Mobil Corp. com 30231G102 208 2055 SH SOLE 0 0 2055 FXCM, Inc. com 302693106 578 32400 SH SOLE 32400 0 0 Federated National Holding C com 31422T101 616 42000 SH SOLE 42000 0 0 Financial Engines, Inc. com 317485100 354 5100 SH SOLE 5100 0 0 Fleetmatics Group Plc com G35569105 1432 33120 SH SOLE 32400 0 720 Flotek Inds Inc. com 343389102 444 22100 SH SOLE 22100 0 0 Furmanite Corp. com 361086101 558 52500 SH SOLE 52500 0 0 G III Apparel Group Ltd. com 36237H101 13693 185149 SH SOLE 64800 0 120349 Gentherm, Inc. com 37253A103 2552 95200 SH SOLE 95200 0 0 Gentium Spa-Sponsored ADR com 37250B104 8280 145016 SH SOLE 20000 0 125016 Grand Canyon Education, Inc. com 38526M106 1862 42700 SH SOLE 42700 0 0 Gulfport Energy Corp. com 402635304 11056 175125 SH SOLE 61300 0 113825 Healthstream Inc. com 42222N103 6839 209629 SH SOLE 29600 0 180029 IGI Laboratories, Inc. com 449575109 191 62600 SH SOLE 62600 0 0 IPG Photonics Corp. com 44980X109 1467 18900 SH SOLE 18900 0 0 Icon Plc Corp. com G4705A100 4939 122200 SH SOLE 0 0 122200 Immersion Corp Com com 452521107 4508 434288 SH SOLE 42700 0 391588 Incontact, Inc. com 45336E109 126 16160 SH SOLE 13500 0 2660 Infoblox, Inc. com 45672H104 756 22900 SH SOLE 22900 0 0 Innovative Solutions & Support com 45769N105 108 14800 SH SOLE 14800 0 0 Intel Corporation com 458140100 256 9870 SH SOLE 0 0 9870 Interactive Intelligence Group com 45841V109 2489 36950 SH SOLE 36400 0 550 Invensense, Inc. com 46123D205 10399 500439 SH SOLE 169700 0 330739 JP Morgan Chase & Company Inc. com 46625H100 336 5749 SH SOLE 0 0 5749 Johnson & Johnson com 478160104 400 4367 SH SOLE 0 0 4367 Kimberly Clark Corp. com 494368103 215 2057 SH SOLE 0 0 2057 Lannett Company, Inc. com 516012101 2224 67200 SH SOLE 67200 0 0 Ligand Pharmaceuticals Cl B com 53220K504 11220 213317 SH SOLE 60200 0 153117 Lionbridge Technologies, Inc. com 536252109 139 23300 SH SOLE 23300 0 0 MGC Diagnostics Corp. com 552768103 1353 106901 SH SOLE 72201 0 34700 Mastercard, Inc. com 57636Q104 243 291 SH SOLE 0 0 291 Matrix Service Co. com 576853105 376 15400 SH SOLE 15400 0 0 Maximus, Inc. com 577933104 1170 26600 SH SOLE 26600 0 0 Maxlinear, Inc. Class A com 57776J100 340 32600 SH SOLE 32600 0 0 Medidata Solutions, Inc. com 58471A105 14299 236340 SH SOLE 107320 0 129020 Methode Electronics, Inc. com 591520200 15390 450130 SH SOLE 161739 0 288390 Microsoft Corp. com 594918104 393 10508 SH SOLE 0 0 10508 Momenta Pharmaceuticals Inc. com 60877T100 789 44600 SH SOLE 44600 0 0 Montage Technology Group Ltd. com G6209T105 408 25000 SH SOLE 25000 0 0 Multimedia Games com 625453105 3200 102045 SH SOLE 86762 0 15283 NQ Mobile, Inc. - ADR com 64118U108 29247 1989561 SH SOLE 1115400 0 874161 NU Skin Enterprises com 67018t105 235 1700 SH SOLE 1700 0 0 Netease.Com, Inc. com 64110W102 4904 62390 SH SOLE 57700 0 4690 Noah Holdings com 65487X102 4583 254600 SH SOLE 238400 0 16200 Northern Oil & Gas, Inc. com 665531109 470 31200 SH SOLE 31200 0 0 Omnicell, Inc. com 68213N109 1471 57600 SH SOLE 57600 0 0 On Assignment, Inc. com 682159108 7362 210814 SH SOLE 86282 0 124532 Overstock.com, Inc. com 690370101 6749 219197 SH SOLE 48300 0 170897 PGT, Inc. com 69336V101 5505 543993 SH SOLE 53500 0 490493 Pennymac Mortgage Investment com 70931T103 6035 262855 SH SOLE 58900 0 203955 Perficient Inc. com 71375U101 323 13800 SH SOLE 12200 0 1600 Performance Technologies com 71376K102 200 53391 SH SOLE 49741 0 3650 Pixelworks, Inc. com 72581M305 736 152660 SH SOLE 148000 0 4660 Procera Networks, Inc. com 74269U203 733 48820 SH SOLE 48700 0 120 Qihoo 360 Technology Co-ADR com 74734M109 5908 72000 SH SOLE 72000 0 0 Quicklogic Corp. com 74837P108 592 150000 SH SOLE 150000 0 0 Qunar Cayman Islands Ltd. com 74906p104 334 12600 SH SOLE 12600 0 0 RPX Corporation com 74972G103 1447 85600 SH SOLE 85600 0 0 Rentrak Corp. com 760174102 409 10800 SH SOLE 10800 0 0 Rignet, Inc. com 766582100 532 11100 SH SOLE 11100 0 0 Ring Energy, Inc. com 76680v108 1098 90000 SH SOLE 90000 0 0 Roadrunner Transportation Syst com 76973Q105 1806 67030 SH SOLE 61100 0 5930 SPDR S&P 500 ETF Trust com 78462F103 1403 7600 SH SOLE 7600 0 0 Sciquest, Inc. com 80908T101 926 32500 SH SOLE 32500 0 0 ShoreTel com 825211105 162 17500 SH SOLE 17500 0 0 Silicom Ltd. com M84116108 636 13900 SH SOLE 13900 0 0 Silicon Image, Inc. com 82705T102 295 48000 SH SOLE 48000 0 0 Silver Spring Networks, Inc. com 82817Q103 529 25200 SH SOLE 25200 0 0 Sina Corp. com G81477104 3513 41700 SH SOLE 38000 0 3700 Soufun Holdings Ltd. ADR com 836034108 5311 64450 SH SOLE 60000 0 4450 Stamps.com, Inc. com 852857200 8943 212428 SH SOLE 54516 0 157912 Steven Madden Ltd. com 556269108 5483 149850 SH SOLE 33800 0 116050 Stratasys Ltd. com M85548101 1697 12600 SH SOLE 12600 0 0 Streamline Health Solutions com 86323X106 90 12900 SH SOLE 8700 0 4200 Sucampo Pharmaceuticals com 864909106 498 53000 SH SOLE 53000 0 0 Sunpower Corp. com 867652406 1139 38200 SH SOLE 38200 0 0 Support.com, Inc. com 86858W101 4557 1202441 SH SOLE 351000 0 851441 Synaptics, Inc. com 87157D109 8106 156456 SH SOLE 40100 0 116356 Synchronoss Technologies Inc. com 87157B103 702 22600 SH SOLE 22600 0 0 Tangoe, Inc. com 87582Y108 1219 67700 SH SOLE 67700 0 0 Taser International, Inc. com 87651B104 333 21000 SH SOLE 21000 0 0 Taylor Morrison Home Corp. com 87724P106 1028 45800 SH SOLE 45800 0 0 The Travelers Co., Inc. com 89417E109 350 3863 SH SOLE 0 0 3863 Toyota Motor Corp. ADR com 892331307 239 1962 SH SOLE 0 0 1962 Triangle Petroleum Corp. com 89600B201 275 33000 SH SOLE 33000 0 0 US Silica Holdings, Inc. com 90346E103 570 16700 SH SOLE 16700 0 0 United Insurance Holdings Co. com 910710102 934 66350 SH SOLE 62900 0 3450 Vascular Solutions com 92231m109 227 9800 SH SOLE 9800 0 0 Verizon Communications com 92343V104 315 6402 SH SOLE 0 0 6402 Vipshop Holdings Ltd. ADS com 92763W103 8443 100900 SH SOLE 100600 0 300 Wageworks, Inc. com 930427109 11080 186401 SH SOLE 61200 0 125201 Wal Mart Stores Inc. com 931142103 297 3769 SH SOLE 0 0 3769 Web.com Group, Inc. com 94733A104 7985 251177 SH SOLE 87900 0 163277 Wells Fargo & Co. com 949746101 208 4574 SH SOLE 0 0 4574 Westell Technologies Inc com 957541105 173 42700 SH SOLE 42700 0 0 Winnebago Industries, Inc. com 974637100 727 26500 SH SOLE 26500 0 0 Xenacare Hldgs, Inc. com 98401A106 0 140000 SH SOLE 0 0 140000 YY com 98426T106 3897 77500 SH SOLE 70000 0 7500 Youku Tudou, Inc. com 98742U100 1212 40000 SH SOLE 40000 0 0 Zumiez Inc. com 989817101 616 23700 SH SOLE 23700 0 0 eGain Corp. com 28225C806 5852 571510 SH SOLE 195500 0 376010