-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, NVz4q1UU48VKZp8acCtcXCjWASFh5WLwUAka2FmZiuoNl4mN3Y5jcxokDbouDPke ubf3bXh9dWNHtuTGY19eTQ== 0001144204-09-027047.txt : 20090515 0001144204-09-027047.hdr.sgml : 20090515 20090515110602 ACCESSION NUMBER: 0001144204-09-027047 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20090331 FILED AS OF DATE: 20090515 DATE AS OF CHANGE: 20090515 EFFECTIVENESS DATE: 20090515 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: 09830063 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 v149436_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: March 31, 2009 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 May 14, 2009 - ------------------------ ------------------------ ------------------- [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: 141 Data Records Form 13F Information Table Value Total: $345,936 (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 - ------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- -------- 3PAR, Inc. com 88580F109 1341 204150 SH SOLE 124750 79400 3SBio Innc-ADR com 88575Y105 1987 293500 SH SOLE 293500 Adept Technology, Inc. com 006854202 170 40500 SH SOLE 27200 13300 Airmedia Group Inc-ADR com 009411109 1262 301300 SH SOLE 297000 4300 Akorn Inc. com 009728106 840 976800 SH SOLE 679500 297300 Alexion Pharm Inc. com 015351109 807 21430 SH SOLE 4790 16640 Allion Healthcare, Inc. com 019615103 1634 355300 SH SOLE 247200 108100 Allscripts Healthcare com 01988P108 120 11700 SH SOLE 10900 800 Almost Family, Inc. com 020409108 2375 124400 SH SOLE 85900 38500 American CareSource Holdings, com 02505A103 5956 777500 SH SOLE 527900 249600 American Public Education, Inc com 02913V103 2758 65571 SH SOLE 38759 26812 American Science & Engr. Inc. com 029429107 2536 45440 SH SOLE 26840 18600 American Xtal Technology com 00246W103 241 280000 SH SOLE 185400 94600 Amtech Systems, Inc. com 032332504 885 274800 SH SOLE 192000 82800 Appliance Recycling Ctrs AMR com 03814F205 102 54000 SH SOLE 33500 20500 Arcsight, Inc. com 039666102 9834 770070 SH SOLE 467620 302450 Arena Resources, Inc. com 040049108 3075 120670 SH SOLE 66520 54150 Art Technology Group Inc. com 04289L107 3278 1285300 SH SOLE 814100 471200 AsiaInfo com 04518A104 5514 327250 SH SOLE 284900 42350 Ata Inc. com 00211V106 1511 351500 SH SOLE 351500 Athena Health, Inc. com 04685W103 3662 151880 SH SOLE 87060 64820 Atwood Oceanics, Inc. com 050095108 1181 71200 SH SOLE 43700 27500 Axsys Technologies, Inc. com 054615109 2102 49990 SH SOLE 29790 20200 Baidu Inc. Spon ADR com 056752108 4824 27316 SH SOLE 22121 5195 Barrett Bill Corp. com 06846N104 1152 51800 SH SOLE 31300 20500 BigBand Networks, Inc. com 089750509 1824 278500 SH SOLE 164700 113800 Boots & Coots International com 099469504 790 632000 SH SOLE 434200 197800 Buffalo Wild Wings, Inc. com 119848109 3643 99600 SH SOLE 59500 40100 CPI Aerostructures, Inc. com 125919308 132 19700 SH SOLE 13800 5900 CTRIP Com Int'l Ltd ADR com 22943F100 353 12900 SH SOLE 12900 Carbo Ceramics, Inc. com 140781105 1086 38200 SH SOLE 22600 15600 Cardionet, Inc. com 14159L103 7121 253780 SH SOLE 142700 111080 Carrizo Oil & Company, Inc. com 144577103 3470 390804 SH SOLE 224526 166278 Catalyst Health Solutions, Inc com 14888B103 3857 194623 SH SOLE 115123 79500 Cavium Networks, Inc. com 14965A101 3601 312070 SH SOLE 176760 135310 Central European Distribution com 153435102 3041 282641 SH SOLE 158022 124619 Ceragon Networks ADR com M22013102 125 29300 SH SOLE 20300 9000 Ceva Inc. com 157210105 1887 259150 SH SOLE 179000 80150 China Distance Educ Hldgs Ltd com 16944W104 2834 521000 SH SOLE 520800 200 China Mass Media Int-SP ADR com 169418100 401 216500 SH SOLE 216500 Chyron Corp. com 171605306 139 116400 SH SOLE 77000 39400 Cisco Systems, Inc. com 17275R102 176 10467 SH SOLE 10467 Clicksoftware Technologies Ltd com M25082104 5104 1371950 SH SOLE 962250 409700 Cninsure, Inc com 18976M103 2304 312600 SH SOLE 312600 Cogent, Inc com 19239y108 1259 105800 SH SOLE 62800 43000 Conceptus Inc. com 206016107 955 81300 SH SOLE 48100 33200 Concur Technologies com 206708109 1219 63525 SH SOLE 37625 25900 Cybersource Corp com 23251J106 9906 668866 SH SOLE 407782 261084 Cypress Biosciences Inc com 232674507 5586 785700 SH SOLE 496000 289700 Data Domain, Inc. com 23767P109 1344 106900 SH SOLE 63400 43500 Deckers Outdoor Corp com 243537107 3416 64400 SH SOLE 38080 26320 Demandtec, Inc. com 24802R506 1785 204000 SH SOLE 141600 62400 Double Eagle Petroleum com 258570209 473 91400 SH SOLE 63400 28000 E-House China Holdings-ADS com 26852W103 1026 132100 SH SOLE 132100 Ebix Inc. com 278715206 6047 243325 SH SOLE 155485 87840 Ecology and Environment, Inc. com 278878103 355 27000 SH SOLE 18555 8445 Emergent Biosolutions, Inc. com 29089Q105 2241 165900 SH SOLE 98900 67000 Emergent Group, Inc. com 29089V203 826 113000 SH SOLE 78500 34500 Exactech, Inc. com 30064E109 889 77400 SH SOLE 53600 23800 Female Health Company com 314462102 2646 717080 SH SOLE 501200 215880 Fuel Tech Inc. com 359523107 3867 369700 SH SOLE 248900 120800 Fuqi International, Inc. com 36102A207 1106 235400 SH SOLE 163500 71900 G III Apparel Group Ltd. com 36237H101 859 155600 SH SOLE 108000 47600 GMX Resources Inc com 38011M108 529 81391 SH SOLE 55603 25788 GMarket Inc ADR com 38012G100 2504 152600 SH SOLE 90500 62100 GSE Systems com 36227K106 3262 548240 SH SOLE 361420 186820 General Electric Co. com 369604103 138 13667 SH SOLE 13667 Genoptix Inc. com 37243V100 6395 234430 SH SOLE 132820 101610 Georesources Inc. com 372476101 996 148200 SH SOLE 103100 45100 Global Traffic Network Inc. com 37947B103 1987 655900 SH SOLE 420480 235420 Goodrich Petroleum Corp. com 382410405 1305 67400 SH SOLE 39900 27500 Green Mtn Coffee com 393122106 7454 155300 SH SOLE 89680 65620 HMS Holdings Corp. com 40425J101 4300 130700 SH SOLE 77600 53100 Hi-Tech Pharmacal com 42840B101 2046 358900 SH SOLE 248600 110300 Home Inns & Hotels Mgmt com 43713W107 715 72400 SH SOLE 72400 ICF International Inc. com 44925C103 5256 228800 SH SOLE 159200 69600 IPC The Hospitalist Co. com 44984A105 8621 452800 SH SOLE 285980 166820 Icad, Inc. com 44934S107 1703 1871600 SH SOLE 1321700 549900 Iconix Brand Group, Inc. com 451055107 1231 139050 SH SOLE 82450 56600 Illumina Inc com 452327109 1869 50194 SH SOLE 12044 38150 Image Entertainment Inc. com 452439201 162 125800 SH SOLE 87500 38300 Intellon Corp. com 45816W504 794 361100 SH SOLE 247200 113900 LMI Aerospace Inc com 502079106 167 23000 SH SOLE 16000 7000 Lannett Company, Inc. Delware com 516012101 964 175900 SH SOLE 122700 53200 Lasercard Corp com 51807U101 92 38200 SH SOLE 26700 11500 Longtop Financial Techno-ADR com 54318P108 4956 233425 SH SOLE 231925 1500 Mastec Inc. com 576323109 3923 324450 SH SOLE 179640 144810 Mcdonald's com 580135101 213 3900 SH SOLE 3900 Microsoft Corp. com 594918104 305 16630 SH SOLE 16630 Mindray Medical Intl com 602675100 1846 99710 SH SOLE 94100 5610 Myriad Genetics Inc. com 62855j104 214 4700 SH SOLE 1000 3700 NCI Inc-Class A com 62886K104 3715 142900 SH SOLE 97500 45400 NPS Pharmaceuticals com 62936P103 1398 332900 SH SOLE 231200 101700 NVE Corp. com 629445206 2394 83100 SH SOLE 58400 24700 Netlogic Microsystems com 64118B100 5011 182340 SH SOLE 108700 73640 Netscout Systems com 64115T104 2625 366600 SH SOLE 219500 147100 Neutral Tandem, Inc. com 64128B108 7505 304970 SH SOLE 172230 132740 New Oriental Education com 647581107 3869 76989 SH SOLE 74400 2589 Nice Systems Ltd. - ADR com 653656108 527 21200 SH SOLE 21200 OPNET Technologies Inc. com 683757108 973 112200 SH SOLE 78200 34000 Occam Networks Inc. com 67457P309 666 253400 SH SOLE 178800 74600 Panhandle Oil & Gas Inc. com 698477106 1469 85800 SH SOLE 59500 26300 Pegasystems Inc. com 705573103 8374 450966 SH SOLE 254450 196516 Perfect World ADR com 71372U104 1390 98900 SH SOLE 96800 2100 Permafix Environmental Service com 714157104 1803 924500 SH SOLE 652400 272100 Petroquest Energy com 716748108 36 15100 SH SOLE 15100 Quality Systems, Inc. com 747582104 4987 110200 SH SOLE 66200 44000 Ramtron Intl Corp com 751907304 741 748400 SH SOLE 480000 268400 Repligen Corp com 759916109 4393 917200 SH SOLE 641800 275400 Richmont Mines, Inc. com 76547T106 1244 329000 SH SOLE 229600 99400 Rrsat Global Communications com M8183P102 3370 280800 SH SOLE 221300 59500 SXC Health Solutions Corp. com 78505P100 2298 106700 SH SOLE 63100 43600 Sapient Corporation com 803062108 874 195600 SH SOLE 116100 79500 Scopus Video Network ADR com M8260H106 150 27400 SH SOLE 18000 9400 Shanda Interactive Entmt, Ltd com 81941Q203 1742 44060 SH SOLE 42100 1960 Sociedad Quimica Minera de Chi com 833635105 352 13250 SH SOLE 13250 Sohu.Com, Inc. com 83408W103 2493 60360 SH SOLE 59150 1210 Somanetics Corp. com 834445405 3758 247530 SH SOLE 159485 88045 Sourcefire, Inc. com 83616T108 1184 162700 SH SOLE 113100 49600 Stanley Inc. com 854532108 3062 120600 SH SOLE 70700 49900 Starent Networks Corp. com 85528P108 5084 321750 SH SOLE 182145 139605 Summer Infant, Inc. com 865646103 758 423300 SH SOLE 295400 127900 Supergen, Inc. com 868059106 335 184900 SH SOLE 126900 58000 Synaptics, Inc. com 87157D109 7258 271222 SH SOLE 152795 118427 Synovis Life Technologies, Inc com 87162G105 4160 300600 SH SOLE 207600 93000 T 3 Energy Services, Inc. com 87306E107 1308 111000 SH SOLE 78000 33000 Telecommunication Systems com 87929J103 4381 477800 SH SOLE 317800 160000 Thoratec Corp. com 885175307 4173 162430 SH SOLE 96200 66230 Transcend Services, Inc. com 893929208 830 83200 SH SOLE 57000 26200 True Religion Apparel Inc. com 89784N104 4526 383230 SH SOLE 240730 142500 UTD Therapeutics Corp com 91307C102 615 9303 SH SOLE 3260 6043 VNUS Med Tech Inc com 928566108 5320 250100 SH SOLE 162870 87230 VSE Corp com 918284100 467 17500 SH SOLE 12100 5400 Vanceinfo Technologies com 921564100 2514 502775 SH SOLE 502775 Virage Logic Corp. com 92763R104 646 192300 SH SOLE 133706 58594 Visionchina Media Inc-ADR com 92833U103 10281 1594025 SH SOLE 1190670 403355 Vistaprint Limited com G93762204 4434 161300 SH SOLE 96700 64600 Vocus Inc. com 92858J108 4016 302200 SH SOLE 196500 105700 Voltaire, Ltd. com M97613109 87 36900 SH SOLE 28500 8400 Walgreen Company com 931422109 226 8700 SH SOLE 8700 Western Goldfields, Inc. com 95828P203 1327 705800 SH SOLE 489900 215900
-----END PRIVACY-ENHANCED MESSAGE-----