0001144204-13-061391.txt : 20131114 0001144204-13-061391.hdr.sgml : 20131114 20131114095111 ACCESSION NUMBER: 0001144204-13-061391 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20130930 FILED AS OF DATE: 20131114 DATE AS OF CHANGE: 20131114 EFFECTIVENESS DATE: 20131114 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: 131217199 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 09-30-2013 09-30-2013 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 11-12-2013 0 141 352071 INFORMATION TABLE 2 infotable.xml 21Vianet Group, Inc. - ADR com 90138A103 15075 914220 SH SOLE 455700 0 458520 51Job Inc. ADR com 316827104 819 11400 SH SOLE 11400 0 0 8X8 Inc. com 282914100 1442 143200 SH SOLE 143200 0 0 AMR Corp. com 001765106 66 16000 SH SOLE 16000 0 0 AVG Technologies com N07831105 7688 321138 SH SOLE 81200 0 239938 Acadia Healthcare Co., Inc. com 00404A109 658 16700 SH SOLE 16700 0 0 Advanced Emissions Solutions, com 00770c101 218 5100 SH SOLE 5100 0 0 Advisory Board Co. com 00762W107 7579 127415 SH SOLE 30200 0 97215 Ambarella, Inc. com G037AX101 2048 104900 SH SOLE 104900 0 0 Amgen, Inc. com 031162100 310 2771 SH SOLE 0 0 2771 Apple, Inc. com 037833100 258 542 SH SOLE 0 0 542 Arctic Cat Inc. com 039670104 354 6200 SH SOLE 6200 0 0 BHP Billiton Ltd. ADR com 088606108 270 4065 SH SOLE 0 0 4065 Bancorp, Inc./The com 05969A105 1911 108028 SH SOLE 75300 0 32728 Barrett Business Services com 068463108 6484 96326 SH SOLE 11900 0 84426 Bitauto com 091727107 1419 88000 SH SOLE 88000 0 0 Bofi Holding, Inc. com 05566U108 3531 54482 SH SOLE 10176 0 44306 Bonanza Creek Energy, Inc. com 097793103 10213 211619 SH SOLE 46200 0 165419 Bryn Mawr Bank Corp. com 117665109 332 12300 SH SOLE 12300 0 0 CTRIP Com Int'l Ltd ADR com 22943F100 10160 174100 SH SOLE 50000 0 124100 CalAmp Corp. com 128126109 213 12100 SH SOLE 12100 0 0 Callon Petroleum Corp. com 13123X102 290 53000 SH SOLE 53000 0 0 Canadian Solar, Inc. com 136635109 850 50000 SH SOLE 50000 0 0 Catamaran Corp. com 148887102 213 4630 SH SOLE 0 0 4630 China Lodging Group-Spon ADS com 16949N109 1800 94775 SH SOLE 94775 0 0 Comstock Hldg Companies, Inc. com 205684103 128 70500 SH SOLE 70500 0 0 Consumer Portfolio Services com 210502100 383 64550 SH SOLE 59200 0 5350 Cyberonics, Inc. com 23251P102 5266 103792 SH SOLE 25500 0 78292 Datalink Corp. com 237934104 158 11695 SH SOLE 11695 0 0 Datawatch Corp. com 237917208 900 32270 SH SOLE 15800 0 16470 Dealertrack Technologies, Inc. com 242309102 1568 36600 SH SOLE 36600 0 0 Diamondback Energy Inc. com 25278X109 797 18700 SH SOLE 18700 0 0 Diodes, Inc. com 254543101 990 40400 SH SOLE 40400 0 0 E-Commerce China Spon ADR com 26833A105 3194 304800 SH SOLE 250000 0 54800 EPL Oil & Gas com 26883D108 1136 30600 SH SOLE 30600 0 0 Eagle Bancorp, Inc. com 268948106 214 7580 SH SOLE 7580 0 0 Ehealth, Inc. com 28238P109 1142 35400 SH SOLE 35400 0 0 Ellie Mae, Inc. com 28849P100 595 18600 SH SOLE 18600 0 0 Encore Capital Group, Inc. com 292554102 201 4400 SH SOLE 4400 0 0 Endologix, Inc. com 29266S106 1306 80900 SH SOLE 80900 0 0 Envestnet, Inc. com 29404K106 7243 233637 SH SOLE 74200 0 159437 Evolution Petroleum Corp. com 30049A107 479 42550 SH SOLE 41600 0 950 Exlservice Holdings com 302081104 393 13800 SH SOLE 13800 0 0 Expedia, Inc. com 30212P303 715 13803 SH SOLE 3803 0 10000 FXCM, Inc. com 302693106 976 49400 SH SOLE 49400 0 0 Financial Engines, Inc. com 317485100 273 4600 SH SOLE 4600 0 0 Fleetmatics Group Plc com G35569105 567 15100 SH SOLE 15100 0 0 Flotek Inds Inc. com 343389102 508 22100 SH SOLE 22100 0 0 Francescas Holdings Corp. com 351793104 549 29470 SH SOLE 26200 0 3270 Furmanite Corp. com 361086101 554 56000 SH SOLE 56000 0 0 G III Apparel Group Ltd. com 36237H101 1949 35700 SH SOLE 35700 0 0 Gentherm, Inc. com 37253A103 1596 83600 SH SOLE 83600 0 0 Gentium Spa-Sponsored ADR com 37250B104 1550 57141 SH SOLE 12000 0 45141 Grand Canyon Education, Inc. com 38526M106 1654 41100 SH SOLE 41100 0 0 Gulfport Energy Corp. com 402635304 11205 174150 SH SOLE 59000 0 115150 Healthstream Inc. com 42222N103 8009 211434 SH SOLE 28200 0 183234 IPG Photonics Corp. com 44980X109 733 13000 SH SOLE 13000 0 0 Immersion Corp Com com 452521107 6364 482103 SH SOLE 50400 0 431703 Incontact, Inc. com 45336E109 133 16160 SH SOLE 13500 0 2660 Infoblox, Inc. com 45672H104 866 20700 SH SOLE 20700 0 0 Innovative Solutions & Support com 45769N105 118 14800 SH SOLE 14800 0 0 Insys Therapeutics, Inc. com 45824V209 388 11100 SH SOLE 11100 0 0 Intel Corporation com 458140100 230 10033 SH SOLE 0 0 10033 Interactive Intelligence Group com 45841V109 1857 29250 SH SOLE 28700 0 550 Invensense, Inc. com 46123D205 7763 440569 SH SOLE 103900 0 336669 JP Morgan Chase & Company Inc. com 46625H100 300 5807 SH SOLE 0 0 5807 Johnson & Johnson com 478160104 382 4409 SH SOLE 0 0 4409 Ligand Pharmaceuticals Cl B com 53220K504 6428 148532 SH SOLE 24000 0 124532 MGC Diagnostics Corp. com 552768103 363 33195 SH SOLE 30695 0 2500 Manitex International, Inc. com 563420108 131 12000 SH SOLE 12000 0 0 Mastercard, Inc. com 57636Q104 202 301 SH SOLE 0 0 301 Matrix Service Co. com 576853105 302 15400 SH SOLE 15400 0 0 Maximus, Inc. com 577933104 1090 24200 SH SOLE 24200 0 0 Maxlinear, Inc. Class A com 57776J100 270 32600 SH SOLE 32600 0 0 Medidata Solutions, Inc. com 58471A105 12737 128748 SH SOLE 54710 0 74038 Methode Electronics, Inc. com 591520200 11447 408825 SH SOLE 112900 0 295925 Microsoft Corp. com 594918104 406 12191 SH SOLE 0 0 12191 Momenta Pharmaceuticals Inc. com 60877T100 325 22600 SH SOLE 22600 0 0 Multimedia Games com 625453105 2414 69862 SH SOLE 69862 0 0 NQ Mobile, Inc. - ADR com 64118U108 21592 990894 SH SOLE 323500 0 667394 Netease.Com, Inc. com 64110W102 3729 51360 SH SOLE 42300 0 9060 Newmont Mining com 651639106 254 9053 SH SOLE 0 0 9053 Noah Holdings com 65487X102 4223 247700 SH SOLE 229700 0 18000 Northern Oil & Gas, Inc. com 665531109 411 28500 SH SOLE 28500 0 0 Omnicell, Inc. com 68213N109 1475 62300 SH SOLE 62300 0 0 On Assignment, Inc. com 682159108 9718 294474 SH SOLE 99182 0 195292 Overstock.com, Inc. com 690370101 5685 191602 SH SOLE 33000 0 158602 PGT, Inc. com 69336V101 5283 533383 SH SOLE 51300 0 482083 Pdf Solutions, Inc. com 693282105 813 38300 SH SOLE 38300 0 0 Pennymac Mortgage Investment com 70931T103 6520 287493 SH SOLE 64671 0 222822 Perficient Inc. com 71375U101 253 13800 SH SOLE 12200 0 1600 Performance Technologies com 71376K102 190 66000 SH SOLE 66000 0 0 Pixelworks, Inc. com 72581M305 614 152660 SH SOLE 148000 0 4660 Points International Ltd. com 730843208 289 12500 SH SOLE 12500 0 0 Premier Exhibitions, Inc. com 74051E102 51 33200 SH SOLE 33200 0 0 Procera Networks, Inc. com 74269U203 738 47620 SH SOLE 46700 0 920 Protalix Biotherapeu com 74365A101 246 54200 SH SOLE 54200 0 0 Proto Labs Inc. com 743713109 435 5700 SH SOLE 5700 0 0 Qihoo 360 Technology Co-ADR com 74734M109 5491 66000 SH SOLE 66000 0 0 RPX Corporation com 74972G103 535 30500 SH SOLE 30500 0 0 Renewable Energy Group, Inc. com 75972A301 195 12900 SH SOLE 12900 0 0 Rignet, Inc. com 766582100 380 10500 SH SOLE 10500 0 0 Roadrunner Transportation Syst com 76973Q105 9304 329468 SH SOLE 97700 0 231768 Rocky Brands, Inc. com 774515100 265 15200 SH SOLE 15200 0 0 SPDR S&P 500 ETF Trust com 78462F103 1545 9200 SH SOLE 9200 0 0 Santarus, Inc. com 802817304 420 18600 SH SOLE 18600 0 0 Senesco Technologies, Inc com 817208408 2 50000 SH SOLE 0 0 50000 Silicom Ltd. com M84116108 486 13100 SH SOLE 13100 0 0 Silicon Image, Inc. com 82705T102 256 48000 SH SOLE 48000 0 0 Sina Corp. com G81477104 3125 38500 SH SOLE 35000 0 3500 Soufun Holdings Ltd. ADR com 836034108 1988 38500 SH SOLE 37400 0 1100 Spreadtrum Communications com 849415203 13308 436894 SH SOLE 192000 0 244894 Stamps.com, Inc. com 852857200 9657 210259 SH SOLE 46242 0 164017 Steven Madden Ltd. com 556269108 5402 100355 SH SOLE 21600 0 78755 Stratasys Ltd. com M85548101 1154 11400 SH SOLE 11400 0 0 Streamline Health Solutions com 86323X106 98 12900 SH SOLE 8700 0 4200 Sunpower Corp. com 867652406 892 34100 SH SOLE 34100 0 0 Support.com, Inc. com 86858W101 2094 384208 SH SOLE 191900 0 192308 Synaptics, Inc. com 87157D109 6967 157451 SH SOLE 37200 0 120251 Synchronoss Technologies Inc. com 87157B103 788 20700 SH SOLE 20700 0 0 Tangoe, Inc. com 87582Y108 2294 96260 SH SOLE 82300 0 13960 Taser International, Inc. com 87651B104 263 17700 SH SOLE 17700 0 0 Taylor Morrison Home Corp. com 87724P106 1022 45100 SH SOLE 45100 0 0 The Travelers Co., Inc. com 89417E109 334 3941 SH SOLE 0 0 3941 Tilly's, Inc. com 886885102 404 27810 SH SOLE 27500 0 310 Toyota Motor Corp. ADR com 892331307 255 1991 SH SOLE 0 0 1991 Triangle Petroleum Corp. com 89600B201 324 33000 SH SOLE 33000 0 0 US Silica Holdings, Inc. com 90346E103 378 15200 SH SOLE 15200 0 0 United Insurance Holdings Co. com 910710102 396 44850 SH SOLE 41400 0 3450 Verizon Communications com 92343V104 298 6395 SH SOLE 0 0 6395 Vipshop Holdings Ltd. ADS com 92763W103 6731 118500 SH SOLE 113900 0 4600 Wageworks, Inc. com 930427109 9334 185011 SH SOLE 54100 0 130911 Wal Mart Stores Inc. com 931142103 282 3813 SH SOLE 0 0 3813 Web.com Group, Inc. com 94733A104 8042 248592 SH SOLE 81600 0 166992 Wet Seal, Inc. com 961840105 80 20400 SH SOLE 20400 0 0 Winnebago Industries, Inc. com 974637100 626 24100 SH SOLE 24100 0 0 Xenacare Hldgs, Inc. com 98401A106 0 140000 SH SOLE 0 0 140000 YY com 98426T106 1076 23000 SH SOLE 20000 0 3000 Youku Tudou, Inc. com 98742U100 548 20000 SH SOLE 20000 0 0 Zumiez Inc. com 989817101 1115 40500 SH SOLE 40500 0 0 eGain Corp. com 28225C806 5750 381036 SH SOLE 95100 0 285936