-----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, GgwmZ3l7dmGFr+uHFGFmgOdoVbyYkOozeswuPkJzRKuZ2bP+6vLzjH13HY/U8wVu MsGZ4qmfKG9YH3Gm0e7zUQ== 0001193125-07-002711.txt : 20070108 0001193125-07-002711.hdr.sgml : 20070108 20070108122156 ACCESSION NUMBER: 0001193125-07-002711 CONFORMED SUBMISSION TYPE: 13F-HR/A PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20060331 FILED AS OF DATE: 20070108 DATE AS OF CHANGE: 20070108 EFFECTIVENESS DATE: 20070108 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/A SEC ACT: 1934 Act SEC FILE NUMBER: 028-04688 FILM NUMBER: 07516657 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/A 1 d13fhra.txt OBERWEIS ASSET MANAGEMENT, INC. 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, 2006 Check here if Amendment [X]; Amendment Number: 1 This Amendment (Check only one.): [X] 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: Patrick B. Joyce - -------------------------- Lisle, IL January 5, 2007 [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 manger are reported in this report and a portion are reported by other reporting manager(s).) List of Other Managers reporting for this Manager: [If there are no entries in this list, omit this section.] FORM 13F SUMMARY PAGE Report Summary: Number of other Included Managers: ------------------------- Form 13F Information Table Entry Total: 218 Data Records Form 13F Information Table Value Total: $2,205,015 (thousandths) 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 Oberweis Asset Management, Inc. FORM 13F 31-Mar-06
Voting Authority Title ---------------- of Value Shares/ Sh/ Put/ Invstmt Other Name of Issuer class CUSIP (x$1000) Prn Amt Prn Call Dscretn Managers Sole Shared None - -------------- ----- --------- -------- ------- --- ---- ------- -------- ------- ------ ------ A D A M Inc. com 00088U108 2592 367700 SH Sole 253100 114600 AAR Corp. com 000361105 367 12900 SH Sole 9900 3000 ASV Inc. com 001963107 47310 1468334 SH Sole 896744 571590 ATP Oil & Gas Corp. com 00208j108 27316 622097 SH Sole 444775 177322 Abaxis, Inc. com 002567105 9750 429900 SH Sole 310700 119200 Ace Comm. Corp. com 004404109 3741 1350376 SH Sole 928976 421400 Adams Respiratory Therapeutics com 00635p107 34689 872246 SH Sole 502632 369614 Adeza Biomedical Corp. com 006864102 23122 1094257 SH Sole 778138 316119 Aeroflex Inc. com 007768104 578 42100 SH Sole 32400 9700 Akamai Technologies Com com 00971t101 1410 42877 SH Sole 16427 26450 Aldila Inc. com 014384200 12031 362381 SH Sole 263938 98443 Allion Healthcare, Inc. com 019615103 6072 447819 SH Sole 264644 183175 Allis Chalmers Energy com 019645506 3782 277500 SH Sole 191400 86100 Alpha Pro Tech Ltd. com 020772109 2541 1004400 SH Sole 681300 323100 American Science & Engr. Inc. com 029429107 15349 164339 SH Sole 115815 48524 American Software com 029683109 1560 214600 SH Sole 148000 66600 Answerthink, Inc. com 036916104 2773 431200 SH Sole 415000 16200 Applix Inc. com 038316105 91 11900 SH Sole 11900 Arena Resources, Inc. com 040049108 6380 182800 SH Sole 131800 51000 Arthrocare Corp. com 043136100 28043 586424 SH Sole 419098 167326 Aspect Medical Systems com 045235108 12324 449126 SH Sole 318132 130994 Aspreva Pharmaceutical ADR com 04538t109 43453 1745818 SH Sole 1050740 695078 Astec Inds Inc. com 046224101 1605 44700 SH Sole 41100 3600 Astronics Corp. com 046433108 698 51750 SH Sole 35700 16050 Atheros Communications com 04743p108 477 18200 SH Sole 14000 4200 Audio Codes ADR com m15342104 17725 1282553 SH Sole 918013 364540 BTU International, Inc. com 056032105 3845 234000 SH Sole 161300 72700 Barrett Business Services com 068463108 9014 333855 SH Sole 225413 108442 Bentley Pharmaceuticals, Inc. com 082657107 3412 259494 SH Sole 178658 80836 Bitstream, Inc. com 091736108 1892 254600 SH Sole 175600 79000 Bodisen Biotech ADR com 096892104 9112 577800 SH Sole 465200 112600 Bronco Drilling Company, Inc. com 112211107 33675 1280433 SH Sole 731569 548864 Bucyrus Int'l Inc. com 118759109 21109 438035 SH Sole 310350 127685 CRA Int'l Inc. com 12618t105 15750 319738 SH Sole 225492 94246 CTRIP Com Int'l Ltd ADR com 22943f100 20880 252484 SH Sole 174720 77764 Carrizo Oil & Company, Inc. com 144577103 35677 1372716 SH Sole 972425 400291 Cellpoint, Inc. com 15115e109 0 11875 SH Sole 11875 Centene Corp. com 15135B101 16451 563964 SH Sole 378507 185457 Central European Distribution com 153435102 28985 753834 SH Sole 516396 237438 Central European Media Enterpr com g20045202 734 10700 SH Sole 8200 2500 Ceradyne, Inc. com 156710105 67671 1356135 SH Sole 883085 473050 Charles & Colvard Ltd. com 159765106 10385 958907 SH Sole 675820 283087 Cheesecake Factory, Inc. com 163072101 582 15548 SH Sole 11957 3591 China Techfaith Wireless com 169424108 1542 106500 SH Sole 106500 Cogent, Inc. com 19239y108 320 17425 SH Sole 17425 Comarco, Inc. com 200080109 4217 368900 SH Sole 242400 126500 Comtech Group, Inc. com 205821200 1229 122900 SH Sole 122900 Comtech Telecomm Corp. com 205826209 223 7644 SH Sole 7644 Concur Technologies com 206708109 19819 1069561 SH Sole 760300 309261 Criticare Sys Corp. com 226901106 3641 800300 SH Sole 552500 247800 Crocs, Inc. com 227046109 10835 430801 SH Sole 313801 117000 Cybersource Corp. com 23251J106 11835 1060456 SH Sole 678617 381839 Cytyc Corp. com 232946103 544 19308 SH Sole 14847 4461 DXP Enterprises, Inc. com 233377407 2802 80600 SH Sole 55600 25000 Datatrak International Inc. com 238134100 3245 442087 SH Sole 303411 138676 Dawson Geophysical Co. com 239359102 5535 200554 SH Sole 133763 66791 Deltathree, Inc. com 24783n102 1762 607500 SH Sole 417700 189800 Desarrolladora Homex ADR com 25030w100 17128 484794 SH Sole 347651 137143 Dril Quip Inc. com 262037104 28605 403736 SH Sole 293442 110294 Dynamic Materials Corp. com 267888105 5270 147872 SH Sole 114394 33478 ENGlobal Corp. (RESTRICTED) com 000000000 1315 90000 SH Sole 90000 Edge Petroleum com 279862106 4802 192251 SH Sole 132595 59656 Edgewater Tech com 280358102 3202 489600 SH Sole 335900 153700 Ediets.com, Inc. com 280597105 1560 292764 SH Sole 202018 90746 Electronic Clearing House, Inc. com 285562500 903 70800 SH Sole 48700 22100 Enbridge Energy Management Llc com ckc50x106 0 29643 SH Sole 29643 Englobal Corp. com 293306106 6716 459711 SH Sole 228458 231253 Essex Corp. com 296744105 18454 838036 SH Sole 597100 240936 Euronet Worldwide, Inc. com 298736109 35070 927054 SH Sole 519811 407243 F5 Networks, Inc. com 315616102 1646 22700 SH Sole 21000 1700 Falconstar Software com 306137100 15241 1612831 SH Sole 1111700 501131 First Advantage Corp CL A com 31845f100 1771 73250 SH Sole 50594 22656 First Horizon Pharmaceutical C com 32051K106 17937 711521 SH Sole 505099 206422 Flotek (RESTRICTED) com 000000000 627 25000 SH Sole 25000 Flotek Inds Inc. com 343389102 5157 205465 SH Sole 99900 105565 Focus Media Hldg Ltd ADR com 34415V109 93437 1610429 SH Sole 1031833 578596 Foxhollow Technology com 35166a103 4726 154700 SH Sole 112200 42500 Fuel-Tech N.V. com 359523107 13117 820338 SH Sole 535184 285154 GMX Resources Inc. com 38011M108 12287 328087 SH Sole 227074 101013 Gaiam, Inc. com 36268q103 1136 70500 SH Sole 45800 24700 General Electric Co. com 369604103 530 15249 SH Sole 15249 Glenayre Technologies com 377899109 14298 2723362 SH Sole 1919771 803591 Golden Eagle Minerals, Inc. com 380961102 0 10000 SH Sole 10000 Golf Galaxy, Inc. com 381639103 4534 207493 SH Sole 143000 64493 Graham Corp. com 384556106 2724 139700 SH Sole 96000 43700 Hartmarx Corp. com 417119104 92 10696 SH Sole 10696 Health Grades Inc. com 42218q102 2979 558838 SH Sole 384257 174581 Healthextras, Inc. com 422211102 36179 1024898 SH Sole 582916 441982 Healthspring, Inc. com 42224n101 1385 74400 SH Sole 68700 5700 Healthways, Inc. com 422245100 16227 318558 SH Sole 218429 100129 Helmerich & Payne com 423452101 1117 16000 SH Sole 6900 9100 Henry Brothers Electronics, In com 426286100 1930 304000 SH Sole 209400 94600 Hercules Offshore com 427093109 8190 240825 SH Sole 174725 66100
Hoku Scientific Inc. com 434712105 3003 469152 SH Sole 309248 159904 Home Solutions Of America com 437355100 9183 1358449 SH Sole 925353 433096 Hurco Companies, Inc. com 447324104 1730 63574 SH Sole 43918 19656 Hydril com 448774109 1601 20534 SH Sole 19160 1374 I.D. Systems, Inc. com 449489103 17784 711375 SH Sole 452795 258580 Ikanos Communications com 45173E105 9663 490275 SH Sole 357600 132675 Immucor Inc. com 452526106 620 21600 SH Sole 16600 5000 Infosonics com 456784107 1856 181600 SH Sole 125200 56400 Integra Life Sciences com 457985208 440 10749 SH Sole 8257 2492 Intersil Corp. com 46069s109 1920 66400 SH Sole 60300 6100 Intralase Corp. com 461169104 18894 814411 SH Sole 577550 236861 Intricon Corp. com 46121H109 1506 215500 SH Sole 147000 68500 Intuitive Surgical, Inc. com 46120e602 5989 50756 SH Sole 2580 48176 Iris Intl Inc. com 46270w105 13204 844772 SH Sole 593388 251384 Ivillage Inc. com 46588h105 7274 864945 SH Sole 597100 267845 J2 Global Communications, Inc. com 46626E205 794 16885 SH Sole 12955 3930 Jlg Industries com 466210101 485 15742 SH Sole 12122 3620 Joy Global Inc. com 481165108 282 4713 SH Sole 3620 1093 Jupitermedia Corp. com 48207D101 18114 1007433 SH Sole 715024 292409 Kenexa Corporation com 488879107 34187 1111761 SH Sole 767548 344213 Kos Pharmaceuticals, Inc. com 500648100 25160 526691 SH Sole 364046 162645 Kyphon Inc. com 501577100 24198 650481 SH Sole 464491 185990 LCA Vision Inc. com 501803308 34544 689358 SH Sole 422353 267005 Lanvision Sys Inc. com 516555109 2621 380900 SH Sole 262500 118400 Lasercard Corp. com 51807U101 4577 203400 SH Sole 136300 67100 Lecg Corp. com 523234102 16007 830682 SH Sole 592458 238224 Logility Inc. com 54140y103 524 48507 SH Sole 33000 15507 Lufkin Inds com 549764108 13104 236371 SH Sole 166800 69571 Matrixx Initiatives com 57685L105 4516 193800 SH Sole 133300 60500 Medifast, Inc. com 58470H101 4494 486900 SH Sole 349200 137700 Merge Technologies com 589981109 11920 746406 SH Sole 513331 233075 Metretek Tech, Inc. com 59159q107 5842 390800 SH Sole 278900 111900 Metretek Technology (Restricte com 3275 250000 SH Sole 150000 100000 Micronetics, Inc. com 595125105 3398 153600 SH Sole 106000 47600 Microsoft Corp. com 594918104 494 18160 SH Sole 18160 Motorola Inc. com 620076109 257 11205 SH Sole 11205 Natus Med Inc. com 639050103 8286 404180 SH Sole 285500 118680 Navteq Corp. com 63936L100 531 10479 SH Sole 8023 2456 Neoware Inc. com 64065P102 21986 742261 SH Sole 522000 220261 Netease.Com, Inc. com 64110W102 1928 78568 SH Sole 74380 4188 Oceaneering Int'l Inc. com 675232102 9546 166600 SH Sole 26200 140400 Omnivision Technologies, Inc. com 682128103 456 15100 SH Sole 11600 3500 Online Resources Corp. com 68273G101 20501 1577031 SH Sole 1087947 489084 Open Solutions com 68371p102 4064 148800 SH Sole 107800 41000 Openwave Systems, Inc. com 683718308 24613 1140549 SH Sole 802701 337848 Optelcom com 683818207 5582 226900 SH Sole 156400 70500 Optionsxpress Hdlgs com 684010101 826 28421 SH Sole 21815 6606 Orckit Communications ADR com M7531S206 22666 1031194 SH Sole 573982 457212 Origin Agritech Ltd com G67828106 1234 71900 SH Sole 71900 Pacificnet Inc ADR com 69511v207 2831 383074 SH Sole 264064 119010 Palomar Medical Technologies p com 697529303 20659 617608 SH Sole 409784 207824 Panera Bread Company com 69840W108 689 9166 SH Sole 7025 2141 Parlux Fragrances Incpdfs com 701645103 14135 438307 SH Sole 310713 127594 Pdf Solutions, Inc. com 693282105 16449 869417 SH Sole 615511 253906 Peerless Systems Corp. com 705536100 4833 646992 SH Sole 426692 220300 Perficient Inc. com 71375U101 11782 1014811 SH Sole 617114 397697 Petrohawk Energy Corp. com 716495106 21873 1596590 SH Sole 1151689 444901 Pioneer Drilling Co. com 723655106 15080 917846 SH Sole 649200 268646 PlanetOut com 727058109 9022 888911 SH Sole 599381 289530 Powerwave Technology com 739363109 1981 146855 SH Sole 109055 37800 Psychiatric Solutions, Inc. com 74439H108 494 14900 SH Sole 9100 5800 Quality Systems, Inc. com 747582104 6114 184716 SH Sole 127700 57016 Quidel Corporation com 74838J101 9457 734803 SH Sole 533400 201403 Rackable Sys Inc. com 750077109 44380 839736 SH Sole 574458 265278 Radcom Ltd. com M81865103 572 136100 SH Sole 136100 Radyne Corp. com 750611402 3229 202200 SH Sole 140400 61800 Redback Networks Inc. com 757209507 10052 463449 SH Sole 327400 136049 Relm Wireless Corp. com 759525108 2853 292900 SH Sole 201900 91000 Resmed Inc. com 761152107 393 8943 SH Sole 6218 2725 Retalix Ltd ADR com m8215w109 6628 268870 SH Sole 194600 74270 Rf Micro Devices, Inc. com 749941100 737 85200 SH Sole 65400 19800 Rightnow Tech Inc. com 76657r106 9824 619012 SH Sole 420314 198698 Rowan Company Inc. com 779382100 2123 48300 SH Sole 44200 4100 SI Int'l com 78427V102 4014 114207 SH Sole 78803 35404 SIRF Technology Hldgs com 82967h101 5876 165700 SH Sole 9800 155900 Saba Software Inc. com 784932600 7890 1223275 SH Sole 718624 504651 Safenet, Inc. com 78645R107 6268 236718 SH Sole 171900 64818 Saifun Semiconductor ADR com m8233p102 7592 244100 SH Sole 176900 67200 Salix Pharmaceuticals, Ltd. com 795435106 17273 1046243 SH Sole 726730 319513 Sani Tech Industry Inc. com 801017104 0 11000 SH Sole 11000 Scopus Video Network ADR com M8260H106 160 31125 SH Sole 19600 11525 Shuffle Master, Inc. com 825549108 7831 219100 SH Sole 154500 64600 Silicon Motion Techn ADR com 82706C108 13666 1126588 SH Sole 823764 302824 Siliconware Precision Industri com 827084864 1483 229855 SH Sole 229855 Silver State Bancorp com 828251108 1893 89100 SH Sole 61400 27700 Sirenza Microdevices com 82966T106 4532 479600 SH Sole 329700 149900 Sohu.Com, Inc. com 83408W103 1689 63300 SH Sole 63300 Somanetics Corp. com 834445405 3604 163213 SH Sole 111410 51803 Stamps Com Inc. com 852857200 16101 456633 SH Sole 324344 132289 Suntech Power Holding Adr com 86800c104 277 7500 SH Sole 7500 Supertex, Inc. com 868532102 8289 220341 SH Sole 163300 57041 Syneron Medical ADR com M87245102 21819 746984 SH Sole 515065 231919 TGC Industries, Inc. com 872417308 1979 180900 SH Sole 124700 56200 Talx Corp. com 874918105 14316 502666 SH Sole 358534 144132 Tessera Technologies, Inc. com 88164L100 15273 476088 SH Sole 337281 138807 The Laser Center com 872549100 325 50000 SH Sole 50000 Tom Online ADR com 889728200 1458 57300 SH Sole 57300 Tradestation Group, Inc. com 89267p105 13710 992061 SH Sole 700829 291232 Traffix com 892721101 1932 335500 SH Sole 231400 104100 Trident Microsystems com 895919108 60514 2082372 SH Sole 1239088 843284 Turbochef Technologies, Inc. com 900006206 19297 1581725 SH Sole 828859 752866 UTD Therapeutics Corp. com 91307c102 15062 227242 SH Sole 160298 66944 Ultra Petroleum Corp. com 903914109 672 10783 SH Sole 8271 2512
Urban Outfitters, Inc. com 917047102 514 20948 SH Sole 16116 4832 Usana Health Sciences, Inc. com 90328M107 3642 87295 SH Sole 62927 24368 VA Software Corp. com 91819b105 5437 1135100 SH Sole 832300 302800 VSE Corp. com 918284100 3497 84264 SH Sole 58323 25941 Valley Bancorp Nev com 91929R107 3781 99900 SH Sole 67400 32500 Valueclick, Inc. com 92046N102 20298 1199667 SH Sole 849332 350335 Vasco Data Sec com 92230Y104 23150 2830109 SH Sole 1913269 916840 Vascular Solutions com 92231m109 2678 338145 SH Sole 226275 111870 Ventiv Health, Inc. com 922793104 23648 711859 SH Sole 501328 210531 Veritas DGC Inc. com 92343P107 21627 476468 SH Sole 331077 145391 Viropharma Inc. com 928241108 4479 352654 SH Sole 242684 109970 Vital Images, Inc. com 92846N104 17248 506108 SH Sole 357013 149095 Vocus,Inc. com 92858J108 5304 357200 SH Sole 246200 111000 Volcom Inc. com 92864n101 26574 747929 SH Sole 416653 331276 Walgreen Company com 931422109 375 8700 SH Sole 8700 Websense com 947684106 331 12000 SH Sole 9200 2800 Websidestory, Inc. com 947685103 21677 1261034 SH Sole 871651 389383 Wellcare Health Plans com 94946t106 386 8500 SH Sole 6500 2000 Youbet.com com 987413101 3871 710348 SH Sole 483647 226701 Zhone Technologies com 98950P108 4700 1753720 SH Sole 1255500 498220 Zoran Corp. com 98975F101 24838 1135188 SH Sole 606300 528888 aQuantive, Inc. com 03839G105 37502 1593117 SH Sole 970415 622702
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