0001104659-19-063953.txt : 20191114 0001104659-19-063953.hdr.sgml : 20191114 20191114113250 ACCESSION NUMBER: 0001104659-19-063953 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20190930 FILED AS OF DATE: 20191114 DATE AS OF CHANGE: 20191114 EFFECTIVENESS DATE: 20191114 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: 191217872 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 09-30-2019 09-30-2019 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 11-14-2019 0 196 442518 INFORMATION TABLE 2 infotable.xml ACCO Brands Corporation com 00081T108 818 82900 SH SOLE 82900 0 0 AMC Entertainment Holdings, In com 00165c104 688 64330 SH SOLE 64330 0 0 Addus Homecare Corp. com 006739106 3375 42570 SH SOLE 16000 0 26570 Adesto Technologies Corp. com 00687D101 763 89100 SH SOLE 89100 0 0 Agco Corp com 001084102 867 11455 SH SOLE 11455 0 0 Air Transport Services Group, com 00922R105 778 37030 SH SOLE 37030 0 0 Airgain, Inc. com 00938A104 624 53100 SH SOLE 53100 0 0 Alibaba ADR com 01609W102 6033 36075 SH SOLE 34130 0 1945 Allied Motion Technologies com 019330109 840 23800 SH SOLE 23800 0 0 Allscripts Healthcare Solution com 01988P108 243 22100 SH SOLE 22100 0 0 Altair Engineering Inc com 021369103 4521 130575 SH SOLE 23525 0 107050 Amer Woodmark com 030506109 809 9100 SH SOLE 9100 0 0 Ameresco, Inc. com 02361E108 1398 87008 SH SOLE 87008 0 0 America's Car-Mart com 03062T105 1192 13000 SH SOLE 13000 0 0 American Eagle Outfitters com 02553E106 349 21500 SH SOLE 21500 0 0 American Power Corp com 02906t107 0 10000 SH SOLE 0 0 10000 Amgen, Inc. com 031162100 292 1510 SH SOLE 0 0 1510 Apple, Inc. com 037833100 565 2521 SH SOLE 60 0 2461 Argenx SE Sponsored ADR com 04016X101 17311 151908 SH SOLE 121308 0 30600 Associated Banc-Corp com 045487105 708 34940 SH SOLE 34940 0 0 Atricure, Inc. com 04963C209 3482 139600 SH SOLE 31200 0 108400 Avatar Ventures com 05350B100 0 10000 SH SOLE 0 0 10000 Bandwidth, Inc. com 05988J103 6503 99879 SH SOLE 44569 0 55310 Bank of New York Mellon Corp. com 064058100 219 4841 SH SOLE 0 0 4841 Baozun Inc. Spon ADR com 06684L103 6683 156510 SH SOLE 69120 0 87390 Belden, Inc. com 077454106 277 5200 SH SOLE 5200 0 0 Benchmark Electronics Inc com 08160H101 638 21940 SH SOLE 21940 0 0 Blucora, Inc. com 095229100 364 16800 SH SOLE 16800 0 0 Boot Barn Hldgs, Inc. com 099406100 1693 48500 SH SOLE 48500 0 0 Brink's Co. com 109696104 218 2630 SH SOLE 2630 0 0 CACI International, Inc. com 127190304 8152 35250 SH SOLE 11200 0 24050 CNO Financial Group, Inc. com 12621E103 708 44730 SH SOLE 44730 0 0 CRA Int'l Inc. com 12618T105 672 16000 SH SOLE 16000 0 0 Cabot Microelectronics Corp. com 12709P103 5040 35689 SH SOLE 6243 0 29446 Camtek, Ltd. com m20791105 946 100800 SH SOLE 100800 0 0 Cardtronics, Inc. com G1991C105 1058 35000 SH SOLE 35000 0 0 CareDx, Inc. com 14167L103 5526 244410 SH SOLE 87980 0 156430 Career Education Corp. com 141665109 5043 317389 SH SOLE 175489 0 141900 Carpenter Technology Corp. com 144285103 692 13400 SH SOLE 13400 0 0 Cato Corporation com 149205106 440 25000 SH SOLE 25000 0 0 Centerstate Bank Corp. com 15201P109 741 30906 SH SOLE 22000 0 8906 Central Pacific Financial Corp com 154760409 1181 41600 SH SOLE 41600 0 0 Century Communities, Inc. com 156504300 1832 59800 SH SOLE 59800 0 0 Champions Oncology, Inc. com 15870P307 307 54333 SH SOLE 54333 0 0 Chart Industries Inc. com 16115Q308 3632 58240 SH SOLE 3620 0 54620 Clarus Corp. com 18270P109 924 78800 SH SOLE 78800 0 0 Cleveland-Cliffs Inc. com 185899101 276 38200 SH SOLE 38200 0 0 Comtech Telecommunications CP com 205826209 1440 44300 SH SOLE 44300 0 0 Conmed Corporation com 207410101 2180 22670 SH SOLE 1300 0 21370 Constellium NV Cl A com N22035104 32825 2582615 SH SOLE 2041915 0 540700 Corelogic Inc. com 21871D103 302 6530 SH SOLE 6530 0 0 Cornerstone Ondemand, Inc. com 21925Y103 5875 107160 SH SOLE 15530 0 91630 Cryolife Inc. com 228903100 419 15444 SH SOLE 15444 0 0 Cutera Inc com 232109108 830 28400 SH SOLE 28400 0 0 Cyrusone, Inc. com 23283R100 506 6400 SH SOLE 6400 0 0 DMC Global, Inc. com 23291C103 10097 229571 SH SOLE 111205 0 118366 Dana Inc. com 235825205 629 43580 SH SOLE 43580 0 0 Deckers Outdoor Corp. com 243537107 5376 36480 SH SOLE 5650 0 30830 Digi International I com 253798102 680 49900 SH SOLE 49900 0 0 Digital Turbine, Inc. com 25400W102 636 98700 SH SOLE 98700 0 0 Eagle Bancorp, Inc. com 268948106 326 7300 SH SOLE 7300 0 0 Ehealth, Inc. com 28238P109 4882 73092 SH SOLE 23311 0 49781 Eldorado Resorts, Inc. com 28470R102 2885 72363 SH SOLE 4420 0 67943 Enterprise Finl Svcs com 293712105 721 17700 SH SOLE 17700 0 0 Federal Signal Corp. com 313855108 1608 49110 SH SOLE 49110 0 0 Fti Consulting Inc. com 302941109 265 2500 SH SOLE 2500 0 0 Fulton Financial Corp. com 360271100 591 36500 SH SOLE 36500 0 0 GDS Holdings Ltd. ADR com 36165L108 2179 54361 SH SOLE 54361 0 0 GW Pharmaceuticals Plc Ads com 36197T103 26056 226519 SH SOLE 181909 0 44610 Graphic Packaging Hldg., Co. com 388689101 875 59300 SH SOLE 59300 0 0 Greif, Inc. com 397624107 389 10256 SH SOLE 10256 0 0 Griffon Corp. com 398433102 734 35000 SH SOLE 35000 0 0 Gulfport Energy Corp. com 402635304 265 97900 SH SOLE 97900 0 0 HMS Holdings Corp. com 40425J101 9520 276220 SH SOLE 90550 0 185670 Hancock Whitney Corp. com 410120109 769 20090 SH SOLE 20090 0 0 Herc Hldgs, Inc. com 42704L104 721 15500 SH SOLE 15500 0 0 Heritage Ins Hldgs, Inc. com 42727J102 674 45113 SH SOLE 45113 0 0 Hope Bancorp, Inc. com 43940T109 793 55300 SH SOLE 55300 0 0 INPHI Corp. com 45772F107 6547 107240 SH SOLE 25600 0 81640 Impinj, Inc. com 453204109 1128 36600 SH SOLE 36600 0 0 Intel Corporation com 458140100 393 7630 SH SOLE 0 0 7630 Irhythm Technologies Inc com 450056106 274 3700 SH SOLE 700 0 3000 Iridium Communications Inc. com 46269C102 332 15600 SH SOLE 15600 0 0 JD.com ADR com 47215P106 853 30250 SH SOLE 30000 0 250 JP Morgan Chase & Company Inc. com 46625H100 545 4629 SH SOLE 140 0 4489 Jabil Inc. com 466313103 290 8100 SH SOLE 8100 0 0 Johnson & Johnson com 478160104 343 2650 SH SOLE 0 0 2650 Knowles Corp. com 49926D109 1532 75300 SH SOLE 75300 0 0 Ligand Pharmaceuticals com 53220K504 243 2440 SH SOLE 2440 0 0 LiqTech International, Inc com 53632A201 1406 177980 SH SOLE 177980 0 0 Logmein, Inc. com 54142L109 255 3600 SH SOLE 3600 0 0 MTS Systems Corp. com 553777103 1564 28300 SH SOLE 28300 0 0 Malibu Boats, Inc. com 56117J100 4732 154248 SH SOLE 44728 0 109520 Marchex Inc. Class B com 56624R108 626 199300 SH SOLE 199300 0 0 Mastec, Inc. com 576323109 795 12240 SH SOLE 12240 0 0 Mastercard, Inc. com 57636Q104 514 1893 SH SOLE 0 0 1893 Materion Corp. com 576690101 1416 23075 SH SOLE 23075 0 0 Matrix Service Co. com 576853105 473 27600 SH SOLE 27600 0 0 Matson, Inc. com 57686g105 639 17045 SH SOLE 16645 0 400 McDonald's Corporation com 580135101 226 1053 SH SOLE 0 0 1053 McGrath RentCorp com 580589109 1594 22900 SH SOLE 22900 0 0 Mednax, Inc. com 58502B106 760 33611 SH SOLE 33611 0 0 Mercury Systems, Inc. com 589378108 4106 50580 SH SOLE 8570 0 42010 Mesa Air Group, Inc. com 590479135 1414 209700 SH SOLE 209700 0 0 Meta Financial Group, Inc. com 59100U108 887 27200 SH SOLE 27200 0 0 Methode Electronics, Inc. com 591520200 780 23200 SH SOLE 23200 0 0 Microsoft Corp. com 594918104 520 3740 SH SOLE 0 0 3740 Mitek Systems, Inc. com 606710200 1048 108600 SH SOLE 108600 0 0 Mobileiron, Inc. com 60739U204 5324 813500 SH SOLE 403950 0 409550 Model N, Inc. com 607525102 794 28600 SH SOLE 28600 0 0 Momo, Inc. ADR com 60879B107 929 30000 SH SOLE 30000 0 0 Monmouth Real Estate Invt Corp com 609720107 154 10700 SH SOLE 10700 0 0 Monolithic Pwr Sys com 609839105 5846 37562 SH SOLE 13314 0 24248 Napco Sec Technologies, Inc. com 630402105 1177 46137 SH SOLE 46137 0 0 National Health Investors, Inc com 63633d104 629 7640 SH SOLE 7640 0 0 National Healthcare com 635906100 614 7500 SH SOLE 7500 0 0 New Jersey Res Corp. com 646025106 725 16030 SH SOLE 16030 0 0 New Oriental Education ADR com 647581107 2658 24000 SH SOLE 24000 0 0 Newmont Mining com 651639106 232 6111 SH SOLE 400 0 5711 Nomad Foods Ltd. com G6564A105 60874 2969479 SH SOLE 2360679 0 608800 Northwest Pipe Co. com 667746101 754 26800 SH SOLE 26800 0 0 Old National Bancorp com 680033107 1227 71315 SH SOLE 71315 0 0 OneSpan, Inc. com 68287N100 1175 81000 SH SOLE 77500 0 3500 OptimizeRx Corp. com 68401U204 746 51500 SH SOLE 51500 0 0 Oshkosh Corp. com 688239201 928 12240 SH SOLE 12240 0 0 Oxford Immunotec Global Plc com G6855A103 980 58900 SH SOLE 58900 0 0 PBF Energy Inc., Cl A com 69318g106 624 22960 SH SOLE 22600 0 360 Perficient Inc. com 71375U101 1146 29700 SH SOLE 29700 0 0 Physicians Realty Trust com 71943u104 1126 63431 SH SOLE 63431 0 0 Plexus Corp. com 729132100 413 6600 SH SOLE 6600 0 0 Portland General Electric Co. com 736508847 764 13550 SH SOLE 13550 0 0 Powell Industries Inc. com 739128106 1190 30400 SH SOLE 30400 0 0 Premier Inc. com 74051N102 257 8900 SH SOLE 8900 0 0 Quanex Building Products Corp. com 747619104 298 16500 SH SOLE 16500 0 0 Radian Group, Inc. com 750236101 659 28860 SH SOLE 28860 0 0 Rapid7, Inc. com 753422104 3492 76930 SH SOLE 4700 0 72230 Recro Pharma, Inc. com 75629F109 554 50000 SH SOLE 50000 0 0 Red Rock Resorts Inc com 75700L108 213 10470 SH SOLE 10470 0 0 Rent-A-Center Inc. com 76009n100 985 38200 SH SOLE 38200 0 0 Resmed Inc. com 761152107 223 1650 SH SOLE 0 0 1650 Rosetta Stone, Inc. com 777780107 1423 81800 SH SOLE 81800 0 0 Rubicon Project Inc com 78112V102 617 70800 SH SOLE 70800 0 0 Rush Enterprises,Inc. Cl A com 781846209 930 24100 SH SOLE 24100 0 0 Ryman Hospitality Pptys. Inc. com 78377t107 855 10450 SH SOLE 10450 0 0 Sanmina Corporation com 801056102 777 24200 SH SOLE 24200 0 0 Science Applications Int'l. 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