0001144204-15-031228.txt : 20150515 0001144204-15-031228.hdr.sgml : 20150515 20150515114818 ACCESSION NUMBER: 0001144204-15-031228 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20150331 FILED AS OF DATE: 20150515 DATE AS OF CHANGE: 20150515 EFFECTIVENESS DATE: 20150515 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: 15866822 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 03-31-2015 03-31-2015 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 05-14-2015 0 169 355988 INFORMATION TABLE 2 infotable.xml 21Vianet Group, Inc. - ADR com 90138A103 5297 299959 SH SOLE 49700 0 250259 8X8 Inc. com 282914100 601 71560 SH SOLE 42500 0 29060 AAC Holdings, Inc. com 000307108 450 14700 SH SOLE 14700 0 0 AMN Healthcare Svcs com 001744101 957 41500 SH SOLE 41500 0 0 ANI Pharmaceuticals, Inc. com 00182C103 4537 72535 SH SOLE 25400 0 47135 Abiomed Inc. com 003654100 7320 102270 SH SOLE 27500 0 74770 Alamo Group Inc. com 011311107 1023 16200 SH SOLE 16200 0 0 Alibaba com 01609W102 2122 25495 SH SOLE 22000 0 3495 Amgen, Inc. com 031162100 462 2889 SH SOLE 0 0 2889 Amsurg Corp. com 03232P405 486 7900 SH SOLE 7900 0 0 Apple, Inc. com 037833100 456 3661 SH SOLE 0 0 3661 Astronics Corp. com 046433108 6202 84148 SH SOLE 19312 0 64836 Atricure, Inc. com 04963C209 402 19600 SH SOLE 19600 0 0 AutoBytel com 05275N205 223 15100 SH SOLE 15100 0 0 Baidu Inc. Spon ADR com 056752108 1290 6190 SH SOLE 6000 0 190 Bank of New York Mellon Corp. com 064058100 268 6663 SH SOLE 0 0 6663 Barracuda Networks Inc com 068323104 431 11200 SH SOLE 11200 0 0 Belden, Inc. com 077454106 543 5800 SH SOLE 5800 0 0 Bitauto com 091727107 2290 45000 SH SOLE 45000 0 0 Bloomin' Brands Inc com 094235108 499 20500 SH SOLE 20500 0 0 Bofi Holding, Inc. com 05566U108 7482 80418 SH SOLE 20676 0 59742 Bonanza Creek Energy, Inc. com 097793103 4475 181477 SH SOLE 38753 0 142724 Bridge Bancorp, Inc. com 108035106 432 16720 SH SOLE 14300 0 2420 Brown Shoe Company, inc. com 115736100 499 15200 SH SOLE 15200 0 0 Build A Bear com 120076104 576 29300 SH SOLE 29300 0 0 Caesarstone Sdot-Yam Ltd. com M20598104 364 6000 SH SOLE 6000 0 0 Callidus Software Inc. com 13123E500 5577 439829 SH SOLE 70300 0 369529 Callon Petroleum Corp. com 13123X102 723 96850 SH SOLE 93200 0 3650 Cambrex Corp com 132011107 1114 28100 SH SOLE 28100 0 0 Canadian Solar, Inc. com 136635109 1530 45820 SH SOLE 45000 0 820 Cardiovascular Systems, Inc. com 141619106 9135 233986 SH SOLE 54000 0 179986 Cardtronics, Inc. com 14161H108 519 13800 SH SOLE 13800 0 0 Catamaran Corp. com 148887102 213 3570 SH SOLE 0 0 3570 Centene Corp. com 15135B101 495 7000 SH SOLE 7000 0 0 Centerstate Banks, Inc. com 15201P109 367 30800 SH SOLE 30800 0 0 Charles River Labs Internation com 159864107 539 6800 SH SOLE 6800 0 0 China Biologic Products com 16938C106 5368 56200 SH SOLE 56200 0 0 China Distance Educ Hldgs Ltd. com 16944W104 2824 168500 SH SOLE 162900 0 5600 China Mobile Games & Entertain com 16952T100 9307 558332 SH SOLE 267000 0 291332 Chinacache International Spon com 16950M107 1187 100000 SH SOLE 100000 0 0 ComScore Inc. com 20564W105 4345 84860 SH SOLE 21800 0 63060 Consumer Portfolio Services com 210502100 443 63370 SH SOLE 49700 0 13670 Cott Corp Que com 22163N106 16065 1714464 SH SOLE 550500 0 1163964 Covenant Transn Group, Inc. Cl com 22284P105 408 12300 SH SOLE 12300 0 0 DTS Inc com 23335C101 365 10700 SH SOLE 10700 0 0 Dealertrack Technologies, Inc. com 242309102 304 7900 SH SOLE 0 0 7900 Dexcom com 252131107 1060 17000 SH SOLE 17000 0 0 Diamondback Energy Inc. com 25278X109 1604 20870 SH SOLE 17300 0 3570 Digitalglobe, Inc. com 25389M877 514 15100 SH SOLE 15100 0 0 Diplomat Pharmacy Inc. com 25456K101 11061 319876 SH SOLE 95885 0 223991 Dot Hill Systems, Inc. com 25848T109 360 68000 SH SOLE 68000 0 0 Eagle Bancorp, Inc. com 268948106 6036 157198 SH SOLE 9380 0 147818 Emc Corporation com 268648102 237 9288 SH SOLE 0 0 9288 Emcore Corp. com 290846203 182 33500 SH SOLE 33500 0 0 Envestnet, Inc. com 29404K106 1525 27202 SH SOLE 15000 0 12202 Exar Corp. com 300645108 336 33400 SH SOLE 33400 0 0 Express Inc com 30219E103 537 32500 SH SOLE 32500 0 0 Financial Engines, Inc. com 317485100 6258 149600 SH SOLE 42114 0 107486 First NBC Bank Holding Co. com 32115D106 514 15600 SH SOLE 15600 0 0 Flotek Inds Inc. com 343389102 171 11600 SH SOLE 11600 0 0 G-III Apparel Group Ltd. com 36237H101 7133 63324 SH SOLE 13200 0 50124 Gentherm, Inc. com 37253A103 11770 233031 SH SOLE 67900 0 165131 Gulfport Energy Corp. com 402635304 298 6500 SH SOLE 6500 0 0 Hackett Group, Inc. com 404609109 197 22000 SH SOLE 22000 0 0 Hain Celestial Group, Inc. com 405217100 243 3800 SH SOLE 3800 0 0 Headwaters, Inc. com 42210P102 587 32000 SH SOLE 32000 0 0 HealthEquity Inc. com 42226A107 6287 251565 SH SOLE 65700 0 185865 Heritage Ins Hldgs, Inc. com 42727J102 264 12000 SH SOLE 12000 0 0 Huntington Ingalls Industries, com 446413106 547 3900 SH SOLE 3900 0 0 Hyperion Therapeutics, Inc. com 44915N101 537 11700 SH SOLE 11700 0 0 INPHI Corp. com 45772F107 5438 304990 SH SOLE 89400 0 215590 Icon Plc Corp. com G4705A100 28099 398400 SH SOLE 124500 0 273900 Ikang Healthcare Group, Inc. com 45174l108 3708 228600 SH SOLE 228600 0 0 Imax Corp. com 45245E109 523 15500 SH SOLE 15500 0 0 Incontact, Inc. com 45336E109 437 40060 SH SOLE 35400 0 4660 Infinera Corporation com 45667G103 604 30700 SH SOLE 30700 0 0 Infoblox, Inc. com 45672H104 506 21200 SH SOLE 21200 0 0 Inogen, Inc. com 45780L104 531 16600 SH SOLE 16600 0 0 Insperity Inc com 45778Q107 3953 75600 SH SOLE 21200 0 54400 Integrated Device Technology, com 458118106 484 24200 SH SOLE 24200 0 0 Intel Corporation com 458140100 302 9674 SH SOLE 0 0 9674 Interactive Intelligence Group com 45841V109 345 8380 SH SOLE 0 0 8380 Intersect Ent Inc com 46071F103 300 11600 SH SOLE 11600 0 0 Interval Leisure Group, Inc. com 46113M108 545 20800 SH SOLE 20800 0 0 Investment Technology Group com 46145F105 621 20500 SH SOLE 20500 0 0 Iradimed Corp. com 46266A109 305 20000 SH SOLE 20000 0 0 JD.com com 47215P106 1917 65250 SH SOLE 65000 0 250 JP Morgan Chase & Company Inc. com 46625H100 358 5911 SH SOLE 0 0 5911 Johnson & Johnson com 478160104 348 3462 SH SOLE 0 0 3462 Kimberly Clark Corp. com 494368103 217 2028 SH SOLE 0 0 2028 Kirklands, Inc. com 497498105 392 16500 SH SOLE 16500 0 0 LHC Group, Inc. com 50187A107 400 12100 SH SOLE 12100 0 0 LSI Inds Inc. com 50216C108 408 50000 SH SOLE 50000 0 0 Lendingtree, Inc. com 52603B107 414 7400 SH SOLE 7400 0 0 Ligand Pharmaceuticals Cl B com 53220K504 9669 125387 SH SOLE 36400 0 88987 Logmein, Inc. com 54142L109 6704 119730 SH SOLE 21700 0 98030 Magnetek, Inc. com 559424403 347 9000 SH SOLE 9000 0 0 Marcus Corp. com 566330106 366 17200 SH SOLE 17200 0 0 Martha Stewart Living Omnimedi com 573083102 274 42100 SH SOLE 42100 0 0 Mastercard, Inc. com 57636Q104 235 2725 SH SOLE 0 0 2725 Maximus, Inc. com 577933104 668 10000 SH SOLE 10000 0 0 Maxlinear, Inc. Class A com 57776J100 359 44100 SH SOLE 44100 0 0 Mellanox Technologies Ltd. com M51363113 508 11200 SH SOLE 11200 0 0 Mercury Systems, Inc. com 589378108 356 22900 SH SOLE 22900 0 0 Methode Electronics, Inc. com 591520200 8519 181092 SH SOLE 48870 0 132222 Microsoft Corp. com 594918104 291 7150 SH SOLE 0 0 7150 Mimedx Group, Inc. com 602496101 7667 737180 SH SOLE 215800 0 521380 Multi Color Corp. com 625383104 998 14400 SH SOLE 14400 0 0 NV5 Holdings Inc com 62945V109 1584 96800 SH SOLE 95000 0 1800 National Gen Hldgs Corp. com 636220303 365 19500 SH SOLE 19500 0 0 Natus Med, Inc. com 639050103 430 10900 SH SOLE 10900 0 0 Neff Corp Com com 640094207 348 33000 SH SOLE 33000 0 0 Netease.Com, Inc. com 64110W102 5329 50610 SH SOLE 50000 0 610 Noah Holdings com 65487X102 1251 53500 SH SOLE 50000 0 3500 Nuvasive com 670704105 400 8700 SH SOLE 8700 0 0 Omnicell, Inc. com 68213N109 1351 38500 SH SOLE 38500 0 0 Oxford Inds, Inc. com 691497309 490 6500 SH SOLE 6500 0 0 PGT, Inc. com 69336V101 5681 508340 SH SOLE 94000 0 414340 Patrick Industries, Inc. com 703343103 224 3600 SH SOLE 3600 0 0 Pericom Semiconductor com 713831105 415 26800 SH SOLE 26800 0 0 Phibro Animal Health Corp com 71742Q106 503 14200 SH SOLE 14200 0 0 Pixelworks, Inc. com 72581M305 2008 399980 SH SOLE 0 0 399980 Planar Systems, Inc. com 726900103 1230 195570 SH SOLE 154700 0 40870 Privatebancorp, Inc. com 742962103 464 13200 SH SOLE 13200 0 0 Qad, Inc. CL A com 74727D306 365 15100 SH SOLE 15100 0 0 Qihoo 360 Technology Co-ADR com 74734M109 1792 35000 SH SOLE 35000 0 0 Qlogic Corp. com 747277101 489 33200 SH SOLE 33200 0 0 Radiant Logistics, Inc. com 75025x100 197 38000 SH SOLE 38000 0 0 Rentrak Corp. com 760174102 261 4700 SH SOLE 4700 0 0 Ring Energy, Inc. com 76680v108 581 54700 SH SOLE 49900 0 4800 Rubicon Project Inc com 78112V102 5068 282830 SH SOLE 116300 0 166530 SPDR S&P 500 ETF Trust com 78462F103 1569 7600 SH SOLE 7600 0 0 SPS Comm Inc. com 78463M107 617 9200 SH SOLE 9200 0 0 Shoe Carnival, Inc. com 824889109 383 13000 SH SOLE 13000 0 0 ShoreTel com 825211105 206 30200 SH SOLE 30200 0 0 Silicom Ltd. com M84116108 359 8700 SH SOLE 8700 0 0 Skechers Usa, Inc. com 830566105 7408 103013 SH SOLE 26300 0 76713 Smith & Wesson Holding com 831756101 344 27000 SH SOLE 27000 0 0 Smith (A.O.) Corp com 831865209 565 8600 SH SOLE 8600 0 0 Spectranetics Corp. com 84760c107 723 20800 SH SOLE 20800 0 0 Spirit Airlines, Inc. com 848577102 526 6800 SH SOLE 6800 0 0 State Bank Financial Corp com 856190103 410 19500 SH SOLE 19500 0 0 Sucampo Pharmaceuticals com 864909106 370 23800 SH SOLE 23800 0 0 Super Micro Computer Inc. com 86800U104 927 27900 SH SOLE 27900 0 0 Synaptics, Inc. com 87157D109 9229 113506 SH SOLE 32400 0 81106 Synchronoss Technologies Inc. com 87157B103 6840 144115 SH SOLE 42900 0 101215 Synergy Resources Corp. com 87164P103 593 50000 SH SOLE 50000 0 0 Syneron Medical com M87245102 220 17800 SH SOLE 17800 0 0 Tarena Internatinal, Inc. com 876108101 7156 735484 SH SOLE 470729 0 264755 Team Health Holdings Inc. com 87817A107 515 8800 SH SOLE 8800 0 0 The Travelers Co., Inc. com 89417E109 431 3989 SH SOLE 0 0 3989 Tower International, Inc. com 891826109 434 16300 SH SOLE 16300 0 0 Toyota Motor Corp. ADR com 892331307 275 1969 SH SOLE 0 0 1969 Trex Company, Inc. com 89531P105 693 12700 SH SOLE 12700 0 0 Universal Health Services com 913903100 365 3100 SH SOLE 3100 0 0 Vasco Data Sec com 92230Y104 345 16000 SH SOLE 14500 0 1500 Vascular Solutions com 92231m109 536 17686 SH SOLE 17686 0 0 Verint Sys Inc. com 92343x100 545 8800 SH SOLE 8800 0 0 Verizon Communications com 92343V104 308 6326 SH SOLE 0 0 6326 Vipshop Holdings Ltd. 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