-----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, A2yBZSjmp2oQwwxJukobCGXQMlG6rzM3pv8bNDxC8Hcxoj7iEXG016prTLym6wKc gCVP7T+c8gTOBbblqmJalw== 0001144204-10-007773.txt : 20100216 0001144204-10-007773.hdr.sgml : 20100215 20100216094139 ACCESSION NUMBER: 0001144204-10-007773 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20091231 FILED AS OF DATE: 20100216 DATE AS OF CHANGE: 20100216 EFFECTIVENESS DATE: 20100216 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: 10602766 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 v174232_13fhr.txt FORM 13F HOLDINGS REPORT 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, 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 February 12, 2010 - ------------------------ ------------------------ ------------------- [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: 180 Data Records Form 13F Information Table Value Total: $590,740 (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 - ------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- -------- 3SBio Inc ADR com 88575Y105 4403 321609 SH SOLE 321609 51Job Inc. ADR com 316827104 1115 62700 SH SOLE 62700 APAC Customer Services, Inc. com 00185E106 1240 208100 SH SOLE 148100 60000 ATMI,Inc. com 00207R101 1289 69200 SH SOLE 58500 10700 Abaxis, Inc. com 002567105 534 20900 SH SOLE 17700 3200 Acacia Research-Acacia Tech com 003881307 7352 807040 SH SOLE 587080 219960 Access National Corp. com 004337101 613 103900 SH SOLE 75386 28514 Acme Packet Inc. com 004764106 1685 153200 SH SOLE 129600 23600 Allion Healthcare, Inc. com 019615103 1643 250500 SH SOLE 191200 59300 Almost Family, Inc. com 020409108 5447 137800 SH SOLE 106000 31800 Alpha Pro Tech Ltd. com 020772109 4827 1067860 SH SOLE 775620 292240 American CareSource Holdings, com 02505A103 2075 864420 SH SOLE 588450 275970 American Science & Engr. Inc. com 029429107 2161 28500 SH SOLE 24400 4100 American Superconductor com 030111108 13167 321932 SH SOLE 274380 47552 Anika Therapeutics, Inc. com 035255108 587 76900 SH SOLE 59700 17200 Arcsight, Inc. com 039666102 14532 568095 SH SOLE 430590 137505 Arena Resources, Inc. com 040049108 5100 118280 SH SOLE 92380 25900 Art Technology Group Inc. com 04289L107 4290 951200 SH SOLE 770300 180900 AsiaInfo com 04518A104 20039 658087 SH SOLE 590450 67637 Ata Inc. com 00211V106 873 195400 SH SOLE 195400 Athena Health, Inc. com 04685W103 5176 114410 SH SOLE 87670 26740 Atheros Communications com 04743P108 556 16248 SH SOLE 13029 3219 Atwood Oceanics, Inc. com 050095108 1775 49500 SH SOLE 42200 7300 Axcelis Technologies com 054540109 124 87800 SH SOLE 87800 BHP Billiton Ltd. ADR com 088606108 274 3577 SH SOLE 3577 Baidu Inc. Spon ADR com 056752108 2746 6678 SH SOLE 3916 2762 Barrett Bill Corp. com 06846N104 1272 40900 SH SOLE 34900 6000 Blackboard com 091935502 1557 34300 SH SOLE 28900 5400 Bofi Holding, Inc. com 05566U108 2250 225000 SH SOLE 173500 51500 Boots & Coots International com 099469504 1117 677000 SH SOLE 515600 161400 Buffalo Wild Wings, Inc. com 119848109 3252 80753 SH SOLE 67778 12975 CPI Aerostructures, Inc. com 125919308 624 103760 SH SOLE 75335 28425 CTRIP Com Int'l Ltd ADR com 22943F100 5418 75400 SH SOLE 74600 800 Cabot Microelectronics Corp. com 12709p103 2284 69300 SH SOLE 58200 11100 Carbo Ceramics, Inc. com 140781105 1704 24995 SH SOLE 15900 9095 Carrizo Oil & Gas, Inc. com 144577103 6602 249031 SH SOLE 175537 73494 Catalyst Health Solutions, Inc com 14888B103 4879 133773 SH SOLE 112873 20900 Central European Distribution com 153435102 2369 83385 SH SOLE 68320 15065 Changyou.com Ltd. ADR com 15911M107 3735 112480 SH SOLE 112480 China Cord Blood Corp. com G21107100 2168 333600 SH SOLE 333600 China Distance Educ Hldgs Ltd com 16944W104 1618 253200 SH SOLE 253200 China Education Alliance, Inc. com 16938Y207 1862 304200 SH SOLE 304200 China Green Agriculture, Inc. com 16943W105 3500 238100 SH SOLE 218700 19400 China Grentech Corp. Ltd. ADR com 16938P107 1061 300500 SH SOLE 300500 China Information Security com 16944F101 621 100800 SH SOLE 100800 China Mass Media Int-SP ADR com 169418100 97 36900 SH SOLE 36900 China Natural Gas, Inc. com 168910206 1935 174000 SH SOLE 174000 China Nuokang Bio-Ph-Sp ADR com 16949B113 1609 205000 SH SOLE 205000 China Real Estate Information com 16948Q103 2833 258000 SH SOLE 258000 China Ritar Power Corp. com 169423100 1583 329700 SH SOLE 329700 China Transinfo Technology com 169453107 3232 395600 SH SOLE 395600 China Valves Technology, Inc. com 169476207 2580 279168 SH SOLE 279168 China-Biotics, Inc. com 16937B109 3515 227200 SH SOLE 227200 Chinacast Education Corp. com 16946T109 5679 751200 SH SOLE 751200 Cisco Systems, Inc. com 17275R102 256 10677 SH SOLE 10677 Citi Trends, Inc. com 17306X102 1334 48300 SH SOLE 36900 11400 Clicksoftware Technologies Ltd com M25082104 7167 1023825 SH SOLE 706580 317245 Cninsure, Inc com 18976M103 4813 239700 SH SOLE 239700 Compellent Technologies Inc. com 20452A108 1238 54600 SH SOLE 45800 8800 Concord Medical Spon ADR com 206277105 2160 250000 SH SOLE 250000 Conmed Healthcare Management com 20741M103 742 241800 SH SOLE 187300 54500 Craft Brewers Alliance, Inc. com 224122101 486 202700 SH SOLE 156000 46700 Cybersource Corp com 23251J106 1469 73070 SH SOLE 58000 15070 Cypress Biosciences Inc com 232674507 1745 302400 SH SOLE 234800 67600 DG Fastchannel, Inc. com 23326r109 14382 514920 SH SOLE 396820 118100 Deckers Outdoor Corp com 243537107 2451 24100 SH SOLE 20400 3700 Dolan Media Company com 25659P402 1194 116900 SH SOLE 98600 18300 Double Eagle Petroleum com 258570209 466 107800 SH SOLE 84900 22900 Dragonwave, Inc. com 26144M103 2031 177200 SH SOLE 137500 39700 Duoyuan Global Water, Inc. ADR com 266043108 5113 142900 SH SOLE 142900 Duoyuan Printing, Inc. com 26605B109 1610 200000 SH SOLE 200000 Dyax Corp. com 26746E103 56 16500 SH SOLE 16500 E-House China Holdings-ADS com 26852W103 10709 591004 SH SOLE 475480 115524 Ebix Inc. com 278715206 1891 38735 SH SOLE 28700 10035 Ecology and Environment, Inc. com 278878103 1812 120800 SH SOLE 92345 28455 Egain Communications Corp. com 28225C806 124 118900 SH SOLE 88200 30700 Emergent Group, Inc. com 29089V203 2074 288100 SH SOLE 216100 72000 Endologix, Inc. com 29266S106 5353 1013800 SH SOLE 786200 227600 Enernoc, Inc. com 292764107 1960 64500 SH SOLE 54600 9900 Female Health Company com 314462102 3960 837200 SH SOLE 648100 189100 Fuel Tech Inc. com 359523107 2079 254412 SH SOLE 204712 49700 Full House Resorts, Inc. com 359678109 82 23900 SH SOLE 23900 G III Apparel Group Ltd. com 36237H101 4119 190100 SH SOLE 146300 43800 GLG Life Tech Corporation com 361793201 1014 131200 SH SOLE 101800 29400 GMX Resources Inc com 38011M108 3539 257576 SH SOLE 195188 62388 GSE Systems com 36227K106 7266 1325850 SH SOLE 999790 326060 General Electric Co. com 369604103 179 11801 SH SOLE 11801 Genoptix Inc. com 37243V100 7922 222960 SH SOLE 181400 41560 Geoeye, Inc. com 37250W108 889 31900 SH SOLE 26900 5000 Georesources Inc. com 372476101 2888 211400 SH SOLE 163800 47600 Gerber Scientific, Inc. com 373730100 68 13400 SH SOLE 13400 Grand Canyon Education, Inc. com 38526M106 7500 394546 SH SOLE 316376 78170 Green Mtn Coffee com 393122106 6742 82754 SH SOLE 63655 19099 HMS Holdings Corp. com 40425J101 3912 80350 SH SOLE 66600 13750 Health Grades Inc com 42218q102 3095 721400 SH SOLE 556300 165100 Herley Industries, Inc. com 427398102 5762 414800 SH SOLE 323500 91300 Hi-Tech Pharmacal com 42840B101 6718 239500 SH SOLE 185800 53700 Hollysis Automation com G45667105 3587 298700 SH SOLE 294700 4000 Home Inns & Hotels Mgmt com 43713W107 15645 442580 SH SOLE 365000 77580 Human Genome Science com 444903108 6995 228740 SH SOLE 147800 80940 ICF International Inc. com 44925C103 2324 86700 SH SOLE 67100 19600 IPC The Hospitalist Co. com 44984A105 13619 409600 SH SOLE 330380 79220 Idera Pharmaceuticals, Inc. com 45168K306 556 107500 SH SOLE 82000 25500 Illumina Inc com 452327109 726 23666 SH SOLE 2569 21097 Imax Corp. com 45245E109 10146 762260 SH SOLE 628230 134030 Immunomedics, Inc. com 452907108 1576 491100 SH SOLE 381500 109600 Infospace Inc Com New com 45678t300 2153 251200 SH SOLE 194700 56500 Intellicheck Mobilisa Inc. com 45817G102 1521 405704 SH SOLE 311604 94100 Ista Pharmaceuticals, Inc. com 45031X204 3348 734200 SH SOLE 576100 158100 Johnson & Johnson com 478160104 219 3393 SH SOLE 3393 Kongzhong Corp. ADR com 50047P104 1587 128048 SH SOLE 128048 Kulicke & Soffa Inds, Inc. com 501242101 3586 665370 SH SOLE 561400 103970 Kvh Industries, Inc. com 482738101 8052 546300 SH SOLE 425500 120800 LHC Group, Inc. com 50187A107 1721 51200 SH SOLE 43700 7500 Lannett Company, Inc. com 516012101 819 138600 SH SOLE 106800 31800 Lasercard Corp com 51807U101 1692 291800 SH SOLE 216200 75600 Lincoln EDL Svcs com 533535100 4130 190660 SH SOLE 145340 45320 Lions Gate Entertainment Corp. com 535919203 725 124800 SH SOLE 108000 16800 Liveperson, Inc. com 538146101 2826 405400 SH SOLE 306900 98500 Logmein, Inc. com 54142L109 2314 115980 SH SOLE 88480 27500 Longtop Financial Techno ADR com 54318P108 12982 350677 SH SOLE 336025 14652 Marketaxess Hldgs com 57060D108 929 66800 SH SOLE 56600 10200 Maxwell Technologies, Inc. com 577767106 3313 185700 SH SOLE 142500 43200 Mcdonald's com 580135101 244 3900 SH SOLE 3900 Medidata Solutions, Inc. com 58471A105 6018 385300 SH SOLE 309700 75600 Merrimac Industries, Inc. com 590262101 3926 246600 SH SOLE 191600 55000 Microsoft Corp. com 594918104 504 16520 SH SOLE 16520 Multiband Corp. com 62544X209 614 306900 SH SOLE 231527 75373 NCI Inc-Class A com 62886K104 2671 96600 SH SOLE 74300 22300 NVE Corp. com 629445206 3707 89800 SH SOLE 68200 21600 Nanometrics, Inc. com 630077105 5753 507800 SH SOLE 396400 111400 Neptune Tech & Bioressources com 64077P108 313 151900 SH SOLE 116000 35900 Netlogic Microsystems com 64118B100 4415 95440 SH SOLE 80100 15340 Neutral Tandem, Inc. com 64128B108 4989 219288 SH SOLE 174280 45008 New Oriental Education com 647581107 1875 24800 SH SOLE 24000 800 Nova Measuring Instruments com M7516K103 1705 263900 SH SOLE 191400 72500 Opentable, Inc. com 68372A104 894 35100 SH SOLE 29400 5700 Orient Paper, Inc. com 68619F205 937 89400 SH SOLE 89400 Orion Marine Group, Inc. com 68628V308 1445 68600 SH SOLE 58100 10500 Panhandle Oil & Gas Inc. com 698477106 2419 93400 SH SOLE 71900 21500 Pegasystems Inc. com 705573103 8881 261197 SH SOLE 211020 50177 Perfect World ADR com 71372U104 6594 167200 SH SOLE 133100 34100 Permafix Environmental Service com 714157104 6861 3022400 SH SOLE 2193680 828720 Phase Forward com 71721R406 1867 121700 SH SOLE 102800 18900 Providence Svc Corp. com 743815102 1258 79600 SH SOLE 63200 16400 QKL Stores, Inc. com 74732Y105 4906 732190 SH SOLE 660500 71690 Real Goods Solar Inc. - Class com 75601N104 345 106700 SH SOLE 82700 24000 Relm Wireless Corp. com 759525108 562 178900 SH SOLE 138800 40100 Repligen Corp com 759916109 1080 262800 SH SOLE 200800 62000 Richmont Mines, Inc. com 76547T106 2351 627000 SH SOLE 468900 158100 Rino International Corp. com 766883102 4360 157700 SH SOLE 128900 28800 Rosetta Stone, Inc. com 777780107 831 46300 SH SOLE 39200 7100 Rrsat Global Communications com M8183P102 1527 135100 SH SOLE 113000 22100 STEC Inc. com 784774101 1906 116626 SH SOLE 91210 25416 SXC Health Solutions Corp. com 78505P100 5864 108700 SH SOLE 95200 13500 Scientific Learning Corp. com 808760102 1256 248200 SH SOLE 192800 55400 Sharps Compliance Corp. com 820017101 1923 200295 SH SOLE 153918 46377 Sinovac Biotech, Ltd. com P8696W104 3475 548900 SH SOLE 544900 4000 Sohu.Com, Inc. com 83408W103 1607 28050 SH SOLE 28050 Sonic Solutions com 835460106 123 10400 SH SOLE 10400 Sourcefire, Inc. com 83616T108 10101 377762 SH SOLE 286690 91072 Srs Labs, Inc. com 78464M106 498 67900 SH SOLE 52800 15100 Summer Infant, Inc. com 865646103 1717 382300 SH SOLE 279800 102500 Synovis Life Technologies, Inc com 87162G105 532 41200 SH SOLE 31600 9600 T 3 Energy Services, Inc. com 87306E107 3037 119100 SH SOLE 92200 26900 Telecommunication Systems com 87929J103 6676 689700 SH SOLE 541600 148100 Thoratec Corp. com 885175307 3629 134820 SH SOLE 105280 29540 Tongxin International Ltd. com G8918T103 3081 342300 SH SOLE 342300 Transcend Services, Inc. com 893929208 1797 84100 SH SOLE 64200 19900 Trina Solar Limited com 89628e104 2218 41100 SH SOLE 1800 39300 True Religion Apparel Inc. com 89784N104 7199 389370 SH SOLE 304870 84500 Vanceinfo Technologies com 921564100 4913 255775 SH SOLE 239675 16100 Virgin Media, Inc. com 92769L101 1525 90600 SH SOLE 90600 Visionchina Media Inc ADR com 92833U103 5285 484020 SH SOLE 464210 19810 Vistaprint NV com N93540107 1258 22200 SH SOLE 18800 3400 Vocus Inc. com 92858J108 1490 82800 SH SOLE 62700 20100 Walgreen Company com 931422109 319 8700 SH SOLE 8700 Wonder Auto Technology, Inc. com 978166106 5701 485614 SH SOLE 482614 3000 Xata Corp. com 983882309 662 230800 SH SOLE 171200 59600 Yongye International, Inc. com 98607B106 7056 867900 SH SOLE 828300 39600
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