0001144204-12-006611.txt : 20120208 0001144204-12-006611.hdr.sgml : 20120208 20120208154802 ACCESSION NUMBER: 0001144204-12-006611 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20111231 FILED AS OF DATE: 20120208 DATE AS OF CHANGE: 20120208 EFFECTIVENESS DATE: 20120208 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: 12581757 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 v301675_13fhr.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: December 31, 2011 Check here if Amendment [ ]; Amendment Number: ____________ This Amendment (Check only one.): [ ] is a restatement. [ ] adds new holdings entries. Institutional Investment Manager Filing this Report: Name: Oberweis Asset Management, Inc. Address: 3333 Warrenville Road, Suite 500 Lisle, IL 60532 Form 13F File Number: 28- 4688 The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form. Person signing this Report on Behalf of Reporting Manager: Name: Patrick B. Joyce Title: Executive Vice President Phone: (800) 323-6166 Signature, Place, and Date of Signing: /s/ Patrick B. Joyce Lisle, IL February 8, 2012 ------------------------ ------------------------ ------------------- [Signature] [City, State] [Date] Report Type (Check only one.): [X] 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.) [ ] 13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).) [ ] 13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).) FORM 13F SUMMARY PAGE Report Summary: Number of other Included Managers: _____ Form 13F Information Table Entry Total: 162 Data Records Form 13F Information Table Value Total: $362,439 (thousands) List of Other Included Managers: Provide a numbered list of the name(s) and Form 13F file number (s) of all institutional investment managers with respect to which this report is filed, other than the manger filing this report. [If there are no entries in this list, state "NONE" and omit the column headings and list entries.] NONE
FORM 13F INFORMATION TABLE VALUE SHARES/ SH/ PUT/ INVSTMT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE ------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- -------- 21Vianet Group, Inc. - ADR com 90138A103 3662 400200 SH Sole 332100 68100 51Job Inc. ADR com 316827104 3656 87180 SH Sole 68600 18580 ADA-ES, Inc. com 005208103 2429 107300 SH Sole 107300 Abbott Laboratories com 002824100 202 3600 SH Sole 3600 Acacia Research-Acacia Tech com 003881307 16475 451243 SH Sole 354050 97193 Acme Packet, Inc. com 004764106 2908 94095 SH Sole 68900 25195 Active Power, Inc. com 00504W100 602 912856 SH Sole 813936 98920 AdCare Health Systems, Inc. com 00650W300 1344 337586 SH Sole 337586 Advisory Board Co. com 00762w107 675 9100 SH Sole 6600 2500 Align Technology, Inc. com 016255101 1542 65000 SH Sole 46800 18200 Allot Communications Ltd. com M0854Q105 921 60600 SH Sole 60600 Amerigon, Inc. com 03070L300 12071 846520 SH Sole 705500 141020 Amgen, Inc. com 031162100 244 3796 SH Sole 3796 Aruba Networks Inc. com 043176106 3169 171100 SH Sole 88600 82500 Authentec, Inc. com 052660107 1200 373700 SH Sole 373700 Autonavi Holdings Ltd. ADR com 05330F106 1204 120000 SH Sole 120000 BHP Billiton Ltd. ADR com 088606108 306 4328 SH Sole 4328 Baidu Inc. Spon ADR com 056752108 349 3000 SH Sole 3000 Barnwell Industries, Inc. com 068221100 143 53100 SH Sole 53100 Basic Energy Services, Inc. com 06985P100 1277 64800 SH Sole 46900 17900 Berkshire Hills Bk com 084680107 690 31100 SH Sole 22400 8700 Body Central Corp. com 09689U102 7144 286200 SH Sole 286200 Bofi Holding, Inc. com 05566U108 4444 273473 SH Sole 258983 14490 Broadsoft, Inc. com 11133B409 6778 224450 SH Sole 164600 59850 Bryn Mawr Bank Corp. com 117665109 2109 108200 SH Sole 108200 Bsquare Corp. com 11776U300 684 199900 SH Sole 199900 CPI Aerostructures, Inc. com 125919308 2372 199835 SH Sole 199835 Cai International, Inc. com 12477X106 617 39900 SH Sole 39900 Callon Petroleum Corp. com 13123x102 1105 222400 SH Sole 222400 Cardinal Finl Corp. com 14149F109 1820 169500 SH Sole 167800 1700 Caribou Coffee Co., Inc. com 142042209 146 10500 SH Sole 10500 Carrizo Oil & Gas, Inc. com 144577103 4338 164628 SH Sole 113934 50694 Ceragon Networks ADR com M22013102 701 91100 SH Sole 91100 Ceva Inc. com 157210105 4383 144850 SH Sole 116200 28650 Changyou.com Ltd. ADR com 15911M107 1614 70000 SH Sole 70000 Charm Communications, Inc. com 16112R101 90 10360 SH Sole 10360 Chase Corp. com 16150R104 281 20198 SH Sole 20198 China Kanghui Holding ADR com 16890V100 2226 150990 SH Sole 150000 990 ClearOne Communications, Inc. com 185060100 1227 284000 SH Sole 284000 Clearfield, Inc. com 18482P103 642 84300 SH Sole 84300 Coca-Cola com 191216100 251 3590 SH Sole 3590 Cognex Corp. com 192422103 844 23574 SH Sole 11900 11674 Datalink Corp. com 237934104 1838 222500 SH Sole 222500 Dealertrack Holdings com 242309102 6012 220550 SH Sole 151600 68950 Digimarc Corp. com 25381B101 3266 136730 SH Sole 117800 18930 Dusa Pharmaceuticals com 266898105 3228 737000 SH Sole 737000 Eagle Bancorp, Inc. com 268948106 1336 91900 SH Sole 91900 Egain Communications Corp. com 28225C806 759 109900 SH Sole 109900 Endologix, Inc. com 29266S106 3535 307900 SH Sole 307900 Exlservice Holdings com 302081104 2613 116800 SH Sole 83800 33000 Exxon Mobil Corp. com 30231G102 213 2514 SH Sole 2514 Faro Technologies, Inc. com 311642102 3531 76750 SH Sole 53400 23350 Financial Engines, Inc. com 317485100 630 28200 SH Sole 20100 8100 First Savings Financial Group, com 33621E109 648 38300 SH Sole 38300 Flotek Inds Inc. com 343389102 4365 438300 SH Sole 363400 74900 Francescas Holdings Corp. com 351793104 5713 330240 SH Sole 236600 93640 G III Apparel Group Ltd. com 36237H101 4915 197300 SH Sole 181600 15700 General Electric Co. com 369604103 266 14871 SH Sole 14871 Georesources, Inc. com 372476101 6557 223700 SH Sole 217700 6000 Gulfport Energy Corp. com 402635304 4758 161550 SH Sole 94200 67350 HMS Holdings Corp. com 40425J101 3338 104370 SH Sole 63700 40670 Hardinge, Inc. com 412324303 1567 194600 SH Sole 194600 Healthstream Inc. com 42222N103 4683 253800 SH Sole 253800 Hercules Offshore com 427093109 81 18200 SH Sole 18200 Hi-Tech Pharmacal com 42840B101 3807 97900 SH Sole 97900 Hurco Companies, Inc. com 447324104 1460 69500 SH Sole 69500 IPC The Hospitalist Co. com 44984A105 4214 92180 SH Sole 92180 IPG Photonics Corp com 44980X109 3593 106090 SH Sole 60700 45390 IROBOT Corp com 462726100 1048 35110 SH Sole 24000 11110 Imax Corp. com 45245E109 8160 445175 SH Sole 313400 131775 Impax Laboratories, Inc. com 45256B101 3032 150310 SH Sole 85300 65010 Imris, Inc. com 45322N105 482 178500 SH Sole 166400 12100 Intel Corporation com 458140100 273 11257 SH Sole 11257 Interactive Intelligence Group com 45841V109 4527 197510 SH Sole 150100 47410 Ixys Corporation com 46600W106 1630 150500 SH Sole 150500 Johnson & Johnson com 478160104 321 4894 SH Sole 4894 KSW, Inc. com 48268R106 57 17203 SH Sole 17203 Kadant Inc. com 48282T104 2130 94200 SH Sole 94200 Kemet Corporation com 488360207 1044 148098 SH Sole 148098 Kenexa Corporation com 488879107 7355 275470 SH Sole 205000 70470 Keynote Systems,inc. com 493308100 2477 120600 SH Sole 108000 12600 LGL Group, Inc. com 50186A108 943 128693 SH Sole 128693 LML Payment Systems, Inc. com 50208P109 594 254800 SH Sole 254800 Lecroy Corp. com 52324W109 1797 213700 SH Sole 213700 Logmein, Inc. com 54142L109 2269 58870 SH Sole 29400 29470 Lydall, Inc. com 550819106 1603 168900 SH Sole 168900 MWI Vetrinary Supply com 55402X105 532 8000 SH Sole 5400 2600 Magic Software Enterprises Ltd com 559166103 253 48900 SH Sole 48900 Magnum Hunter Resources, Inc. com 55973B102 81 15000 SH Sole 15000 Manitex International, Inc. com 563420108 1003 236600 SH Sole 236600 Mastech Holdings, Inc. com 57633B100 109 29119 SH Sole 29119 Mcdonald's com 580135101 488 4861 SH Sole 4861 Medidata Solutions, Inc. com 58471A105 6773 311400 SH Sole 279100 32300 Microsoft Corp. com 594918104 409 15765 SH Sole 15765 Mistras Group, Inc. com 60649T107 9198 360830 SH Sole 333800 27030 Mitcham Industries, Inc. com 606501104 3099 141900 SH Sole 141900 Mitek Systems, Inc. com 606710200 1582 218200 SH Sole 218200 Momenta Pharmaceuticals Inc. com 60877T100 690 39700 SH Sole 28700 11000 Multi Color Corp. com 625383104 1552 60300 SH Sole 60300 NN, Inc. com 629337106 207 34467 SH Sole 34467 Netease.Com, Inc. com 64110W102 3588 80000 SH Sole 80000 Netqin Mobile, Inc. - ADR com 64118U108 787 149400 SH Sole 125000 24400 New Oriental Education com 647581107 1924 80000 SH Sole 80000 Northern Oil & Gas, Inc. com 665531109 2767 115400 SH Sole 82700 32700 Oclaro, Inc. com 67555N206 81 28800 SH Sole 28800 On Assignment, Inc. com 682159108 2481 221900 SH Sole 221900 Opentable, Inc. com 68372A104 2929 74855 SH Sole 46400 28455 Optical Cable Corp. com 683827208 328 102706 SH Sole 102706 Orbit\FR Inc. com 685929101 59 61900 SH Sole 61900 Panhandle Oil & Gas Inc. com 698477106 2008 61200 SH Sole 61200 Points International Ltd. com 730843208 2317 291500 SH Sole 291500 Procera Networks, Inc. com 74269U203 1472 94500 SH Sole 94500 Pros Holdings, Inc. com 74346Y103 187 12600 SH Sole 12600 QKL Stores, Inc. com 74732Y105 333 467700 SH Sole 362000 105700 Qihoo 360 Technology Co-ADR com 74734M109 497 31700 SH Sole 30000 1700 Realpage, Inc. com 75606N109 1086 42974 SH Sole 30434 12540 Richmont Mines, Inc. com 76547T106 1164 108180 SH Sole 107200 980 Roadrunner Transportation Syst com 76973Q105 875 61900 SH Sole 44600 17300 Rogers Corp. com 775133101 1360 36905 SH Sole 21200 15705 Rue21, Inc. com 781295100 1525 70600 SH Sole 51100 19500 SXC Health Solutions Corp. com 78505P100 8042 142380 SH Sole 112300 30080 Sagent Technology, Inc. com 786692103 449 21375 SH Sole 14400 6975 Select Comfort Corp. com 81616X103 226 10400 SH Sole 10400 Senesco Technologies, Inc com 817208408 13 50000 SH Sole 50000 Silicom Ltd. com M84116108 2049 116814 SH Sole 116814 Silicon Graphics International com 82706L108 1408 122900 SH Sole 122900 Silicon Image, Inc. com 82705T102 547 116300 SH Sole 84300 32000 Sina Corp Ord com G81477104 2504 48160 SH Sole 36400 11760 Sohu.Com, Inc. com 83408W103 3192 63830 SH Sole 59000 4830 Spreadtrum Communications com 849415203 12149 581839 SH Sole 445300 136539 Stamps Com Inc com 852857200 1354 51800 SH Sole 51800 Stratasys, Inc. com 862685104 1000 32900 SH Sole 23400 9500 Summer Infant, Inc. com 865646103 1164 165400 SH Sole 165400 Synergetics USA, Inc. com 87160G107 186 25200 SH Sole 25200 Syneron Medical ADR com M87245102 1409 127300 SH Sole 127300 Syswin, Inc. com 872058102 284 308000 SH Sole 308000 TII Network Technologies, Inc. com 872479209 91 61600 SH Sole 61600 Taleo Corp. com 87424N104 3139 81130 SH Sole 46800 34330 Tangoe, Inc. com 87582Y108 1844 119710 SH Sole 85400 34310 Teavana Holdings, Inc. com 87819P102 2105 112100 SH Sole 95900 16200 Tesco Corp. com 88157K101 466 36900 SH Sole 26400 10500 The Travelers Co., Inc. com 89417E109 244 4122 SH Sole 4122 Titan Machinery, Inc. com 88830R101 1191 54800 SH Sole 38900 15900 Travelzoo, Inc. com 89421Q106 1354 55100 SH Sole 40100 15000 Twin Disc, Inc. com 901476101 14613 402327 SH Sole 304661 97666 United Financial Bancorp, Inc. com 91030T109 1249 77600 SH Sole 77600 Vasco Data Sec com 92230Y104 1372 210400 SH Sole 210400 Vera Bradley, Inc. com 92335C106 3585 111150 SH Sole 63800 47350 Viropharma Inc. com 928241108 3016 110100 SH Sole 77600 32500 Virtusa Corp. com 92827P102 1295 89400 SH Sole 89400 Wal Mart Stores Inc. com 931142103 253 4232 SH Sole 4232 Walgreen Company com 931422109 288 8700 SH Sole 8700 Wayside Technology Group, Inc. com 946760105 711 58300 SH Sole 58300 Web.com Group, Inc. com 94733A104 7777 679180 SH Sole 540500 138680 Wi-Lan Inc. com 928972108 4529 788983 SH Sole 582400 206583 Xata Corp. com 983882309 97 76300 SH Sole 76300 Youku.com com 98742U100 1019 65000 SH Sole 65000 Zeltiq Aesthetics, Inc. com 98933Q108 2749 242000 SH Sole 215600 26400 Zillow, Inc. com 98954A107 1019 45320 SH Sole 32200 13120 Zix Corp. com 98974P100 2488 882100 SH Sole 878900 3200 Zoll Medical Corporation com 989922109 234 3700 SH Sole 3700 iSoftStone Holdings Ltd. com 46489B108 438 50000 SH Sole 50000