0001144204-19-039828.txt : 20190814 0001144204-19-039828.hdr.sgml : 20190814 20190814111432 ACCESSION NUMBER: 0001144204-19-039828 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20190630 FILED AS OF DATE: 20190814 DATE AS OF CHANGE: 20190814 EFFECTIVENESS DATE: 20190814 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: 191024048 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 06-30-2019 06-30-2019 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 08-14-2019 0 196 550433 INFORMATION TABLE 2 infotable.xml AMC Entertainment Holdings, In com 00165c104 494 52988 SH SOLE 51230 0 1758 Accuray Inc. com 004397105 992 256400 SH SOLE 256400 0 0 Adesto Technologies Corp. com 00687D101 641 78600 SH SOLE 78600 0 0 Agco Corp com 001084102 819 10555 SH SOLE 10555 0 0 Air Transport Services Group, com 00922R105 342 14030 SH SOLE 14030 0 0 Airgain, Inc. com 00938A104 593 41900 SH SOLE 41900 0 0 Alibaba ADR com 01609W102 6194 36555 SH SOLE 34130 0 2425 Allied Motion Technologies com 019330109 1084 28600 SH SOLE 28600 0 0 Altair Engineering Inc com 021369103 5234 129595 SH SOLE 23925 0 105670 Amer Woodmark com 030506109 575 6800 SH SOLE 6800 0 0 Ameresco, Inc. com 02361E108 1282 87008 SH SOLE 87008 0 0 America's Car-Mart com 03062T105 758 8800 SH SOLE 8800 0 0 American Power Corp com 02906t107 0 10000 SH SOLE 0 0 10000 Amgen, Inc. com 031162100 292 1582 SH SOLE 0 0 1582 Apple, Inc. com 037833100 517 2612 SH SOLE 60 0 2552 Argenx SE Sponsored ADR com 04016X101 45589 322000 SH SOLE 263700 0 58300 Associated Banc-Corp com 045487105 739 34940 SH SOLE 34940 0 0 Atricure, Inc. com 04963C209 6116 204950 SH SOLE 60000 0 144950 Avatar Ventures com 05350B100 0 10000 SH SOLE 0 0 10000 BHP Billiton Ltd. ADR com 088606108 235 4051 SH SOLE 140 0 3911 BJ's Restaurants, Inc. com 09180C106 914 20800 SH SOLE 20800 0 0 Bandwidth, Inc. com 05988J103 6086 81120 SH SOLE 34770 0 46350 Bank of New York Mellon Corp. com 064058100 214 4839 SH SOLE 0 0 4839 Baozun Inc. Spon ADR com 06684L103 2682 53800 SH SOLE 53800 0 0 Belden, Inc. com 077454106 328 5500 SH SOLE 5500 0 0 Benchmark Electronics Inc com 08160H101 1380 54948 SH SOLE 54948 0 0 Big Lots Inc. com 089302103 349 12200 SH SOLE 12200 0 0 Blucora, Inc. com 095229100 5630 185364 SH SOLE 65600 0 119764 Boot Barn Hldgs, Inc. com 099406100 1394 39100 SH SOLE 39100 0 0 Brink's Co. com 109696104 214 2630 SH SOLE 2630 0 0 CACI International, Inc. com 127190304 7601 37150 SH SOLE 13100 0 24050 CNO Financial Group, Inc. com 12621E103 744 44630 SH SOLE 44630 0 0 CTRIP Com Int'l Ltd ADR com 22943F100 1661 45000 SH SOLE 45000 0 0 Cabot Microelectronics Corp. com 12709P103 5548 50402 SH SOLE 6241 0 44161 Camtek, Ltd. com m20791105 852 100800 SH SOLE 100800 0 0 Carbonite, Inc. com 141337105 7428 285244 SH SOLE 94320 0 190924 Cardtronics, Inc. com G1991C105 1087 39800 SH SOLE 39800 0 0 CareDx, Inc. com 14167L103 9230 256460 SH SOLE 101230 0 155230 Career Education Corp. com 141665109 5163 270719 SH SOLE 170489 0 100230 Carpenter Technology Corp. com 144285103 542 11300 SH SOLE 11300 0 0 Cars Com Inc. com 14575E105 355 18000 SH SOLE 18000 0 0 Centerstate Bank Corp. com 15201P109 756 32825 SH SOLE 22520 0 10305 Central Pacific Financial Corp com 154760409 1264 42200 SH SOLE 42200 0 0 Century Communities, Inc. com 156504300 585 22000 SH SOLE 22000 0 0 Champions Oncology, Inc. com 15870P307 376 48033 SH SOLE 48033 0 0 Clarus Corp. com 18270P109 1206 83500 SH SOLE 83500 0 0 Cleveland-Cliffs Inc. com 185899101 275 25800 SH SOLE 25800 0 0 Columbus McKinnon Corp. NY com 199333105 3278 78098 SH SOLE 16525 0 61573 Comtech Telecommunications CP com 205826209 1153 41000 SH SOLE 41000 0 0 Corelogic Inc. com 21871D103 273 6530 SH SOLE 6530 0 0 Cornerstone Ondemand, Inc. com 21925Y103 6263 108110 SH SOLE 16130 0 91980 Cousins Properties com 222795502 707 19542 SH SOLE 19542 0 0 Cryolife Inc. com 228903100 672 22444 SH SOLE 22444 0 0 Cyrusone, Inc. com 23283R100 456 7900 SH SOLE 7900 0 0 DMC Global, Inc. com 23291C103 12044 190120 SH SOLE 109175 0 80945 Dana Inc. com 235825205 634 31780 SH SOLE 31780 0 0 Deckers Outdoor Corp. com 243537107 6750 38360 SH SOLE 7330 0 31030 Digi International I com 253798102 633 49900 SH SOLE 49900 0 0 Digital Turbine, Inc. com 25400W102 650 130000 SH SOLE 130000 0 0 Ducommun Inc. com 264147109 457 10150 SH SOLE 10150 0 0 Eagle Bancorp, Inc. com 268948106 606 11200 SH SOLE 11200 0 0 Ehealth, Inc. com 28238P109 1162 13500 SH SOLE 13500 0 0 Eldorado Resorts, Inc. com 28470R102 3873 84063 SH SOLE 16020 0 68043 Enterprise Finl Svcs com 293712105 736 17700 SH SOLE 17700 0 0 Envestnet, Inc. com 29404K106 5151 75340 SH SOLE 14390 0 60950 Federal Signal Corp. com 313855108 1851 69210 SH SOLE 69210 0 0 Flushing Financial Corp. com 343873105 289 13000 SH SOLE 13000 0 0 Fulton Financial Corp. com 360271100 598 36500 SH SOLE 36500 0 0 GDS Holdings Ltd. ADR com 36165L108 2042 54361 SH SOLE 54361 0 0 GW Pharmaceuticals Plc Ads com 36197T103 80780 468589 SH SOLE 383939 0 84650 Graphic Packaging Hldg., Co. com 388689101 665 47600 SH SOLE 47600 0 0 Green Dot Corp. Cl A com 39304D102 245 5000 SH SOLE 5000 0 0 Gulfport Energy Corp. com 402635304 477 97100 SH SOLE 97100 0 0 HMS Holdings Corp. com 40425J101 9532 294280 SH SOLE 91050 0 203230 HUYA, Inc. ADR com 44852D108 1359 55000 SH SOLE 55000 0 0 Hancock Whitney Corp. com 410120109 805 20090 SH SOLE 20090 0 0 Hanmi Financial Corporation com 410495204 216 9700 SH SOLE 9700 0 0 Harsco Corp. com 415864107 516 18800 SH SOLE 18800 0 0 Herc Hldgs, Inc. com 42704L104 706 15400 SH SOLE 15400 0 0 Heritage Ins Hldgs, Inc. com 42727J102 640 41513 SH SOLE 41513 0 0 Hersha Hospitality Trust com 427825500 776 46920 SH SOLE 46920 0 0 Hope Bancorp, Inc. com 43940T109 772 56000 SH SOLE 56000 0 0 INPHI Corp. com 45772F107 5029 100370 SH SOLE 22730 0 77640 Intel Corporation com 458140100 377 7873 SH SOLE 0 0 7873 Irhythm Technologies Inc com 450056106 4321 54640 SH SOLE 2150 0 52490 JP Morgan Chase & Company Inc. com 46625H100 538 4813 SH SOLE 140 0 4673 Johnson & Johnson com 478160104 382 2743 SH SOLE 0 0 2743 Knowles Corp. com 49926D109 1221 66700 SH SOLE 66700 0 0 Ligand Pharmaceuticals com 53220K504 427 3740 SH SOLE 3740 0 0 LiqTech International, Inc com 53632A201 1486 149980 SH SOLE 149980 0 0 Logmein, Inc. com 54142L109 265 3600 SH SOLE 3600 0 0 MTS Systems Corp. com 553777103 1656 28300 SH SOLE 28300 0 0 Malibu Boats, Inc. com 56117J100 6739 173468 SH SOLE 63808 0 109660 Marchex Inc. Class B com 56624R108 353 75000 SH SOLE 75000 0 0 Mastec, Inc. com 576323109 672 13040 SH SOLE 13040 0 0 MasterCraft Boat Holdings, Inc com 57637h103 1009 51500 SH SOLE 51500 0 0 Mastercard, Inc. com 57636Q104 501 1893 SH SOLE 0 0 1893 Materion Corp. com 576690101 1666 24575 SH SOLE 24575 0 0 Matrix Service Co. com 576853105 559 27600 SH SOLE 27600 0 0 Matson, Inc. com 57686g105 676 17410 SH SOLE 17010 0 400 McDonald's Corporation com 580135101 218 1049 SH SOLE 0 0 1049 McGrath RentCorp com 580589109 1150 18500 SH SOLE 18500 0 0 Mednax, Inc. com 58502B106 627 24865 SH SOLE 24865 0 0 Mesa Air Group, Inc. com 590479135 1924 210500 SH SOLE 210500 0 0 Microsoft Corp. com 594918104 505 3770 SH SOLE 0 0 3770 Mitek Systems, Inc. com 606710200 1192 119900 SH SOLE 119900 0 0 Mobileiron, Inc. com 60739U204 4861 784100 SH SOLE 376050 0 408050 Model N, Inc. com 607525102 1275 65400 SH SOLE 65400 0 0 Momo, Inc. ADR com 60879B107 2148 60000 SH SOLE 60000 0 0 Monolithic Pwr Sys com 609839105 4167 30690 SH SOLE 13712 0 16978 Napco Sec Technologies, Inc. com 630402105 1162 39137 SH SOLE 39137 0 0 National Health Investors, Inc com 63633d104 596 7640 SH SOLE 7640 0 0 National Healthcare com 635906100 674 8300 SH SOLE 8300 0 0 Neogenomics, Inc. com 64049M209 380 17300 SH SOLE 17300 0 0 Netease.Com, Inc. ADR com 64110W102 494 1930 SH SOLE 1500 0 430 New Jersey Res Corp. com 646025106 798 16030 SH SOLE 16030 0 0 New Oriental Education ADR com 647581107 2318 24000 SH SOLE 24000 0 0 Newmont Mining com 651639106 242 6299 SH SOLE 400 0 5899 Nextgen Healthcare, Inc. com 65343C102 784 39400 SH SOLE 39400 0 0 Nomad Foods Ltd. com G6564A105 62877 2943679 SH SOLE 2414579 0 529100 Noodles & Co. com 65540B105 533 67600 SH SOLE 67600 0 0 Northwest Pipe Co. com 667746101 588 22800 SH SOLE 22800 0 0 Old National Bancorp com 680033107 1268 76415 SH SOLE 76415 0 0 OneSpan, Inc. com 68287N100 810 57150 SH SOLE 55300 0 1850 OptimizeRx Corp. com 68401U204 599 37000 SH SOLE 37000 0 0 Oshkosh Corp. com 688239201 972 11640 SH SOLE 11640 0 0 Owens Ill Inc. com 690768403 467 27030 SH SOLE 27030 0 0 PBF Energy Inc., Cl A com 69318g106 595 19000 SH SOLE 19000 0 0 Physicians Realty Trust com 71943u104 1131 64831 SH SOLE 64831 0 0 Pinduoduo Inc. com 722304102 619 30000 SH SOLE 30000 0 0 Pixelworks, Inc. com 72581M305 467 158356 SH SOLE 158356 0 0 Plantronics, Inc. com 727493108 452 12200 SH SOLE 12200 0 0 Plexus Corp. com 729132100 269 4600 SH SOLE 4600 0 0 Portland General Electric Co. com 736508847 777 14350 SH SOLE 14350 0 0 Powell Industries Inc. com 739128106 1011 26600 SH SOLE 26600 0 0 Premier Inc. com 74051N102 485 12400 SH SOLE 12400 0 0 Pyxus International, Inc. com 74737V106 600 39500 SH SOLE 39500 0 0 Quanex Building Products Corp. com 747619104 312 16500 SH SOLE 16500 0 0 Radian Group, Inc. com 750236101 673 29460 SH SOLE 29460 0 0 Rent-A-Center Inc. com 76009n100 1017 38200 SH SOLE 38200 0 0 Resmed Inc. com 761152107 201 1650 SH SOLE 0 0 1650 Rosetta Stone, Inc. com 777780107 1528 66800 SH SOLE 66800 0 0 Rush Enterprises,Inc. Cl A com 781846209 763 20900 SH SOLE 20900 0 0 Ryman Hospitality Pptys. Inc. com 78377t107 945 11650 SH SOLE 11650 0 0 Sanmina Corporation com 801056102 772 25500 SH SOLE 25500 0 0 Simmons First National Corp. com 828730200 687 29530 SH SOLE 29530 0 0 Skyline Champion Corp com 830830105 9919 362263 SH SOLE 114833 0 247430 Skywest Inc com 830879102 9528 157043 SH SOLE 45016 0 112027 Solaris Oilfield Infrastructur com 83418M103 1330 88800 SH SOLE 88800 0 0 Southern Natl Bancorp of Virgi com 843395104 563 36800 SH SOLE 36800 0 0 Southwest Gas Corp. com 844895102 800 8930 SH SOLE 8930 0 0 Spirit Airlines, Inc. com 848577102 329 6900 SH SOLE 6900 0 0 Sprott Physical Gold and Silve com 85208r101 132 10000 SH SOLE 0 0 10000 Stifel Financial Corp. com 860630102 745 12620 SH SOLE 12620 0 0 Synalloy Cp Del com 871565107 449 28754 SH SOLE 28754 0 0 Synnex Corp. com 87162W100 842 8559 SH SOLE 8559 0 0 Tactile Sys Technology, Inc. com 87357P100 5985 105140 SH SOLE 30740 0 74400 Tal Education Group ADR com 874080104 1524 40000 SH SOLE 40000 0 0 Tandem Diabetes Care, Inc. com 875372203 13931 215920 SH SOLE 90300 0 125620 Techtarget, Inc. com 87874R100 712 33500 SH SOLE 33500 0 0 Telaria, Inc. com 879181105 1254 166800 SH SOLE 166800 0 0 Terex Corp. com 880779103 217 6900 SH SOLE 6900 0 0 Tetra Tech, Inc. com 88162g103 866 11030 SH SOLE 11030 0 0 The Travelers Co., Inc. com 89417E109 424 2834 SH SOLE 0 0 2834 Timken Company com 887389104 1011 19690 SH SOLE 19690 0 0 Tital Oil & Gas, Inc. com 888309101 0 10000 SH SOLE 0 0 10000 Tower International, Inc. com 891826109 667 34180 SH SOLE 34180 0 0 Trex Company, Inc. com 89531P105 6716 93670 SH SOLE 22600 0 71070 Triumph Group, Inc. com 896818101 1093 47740 SH SOLE 47740 0 0 Turning PT Brands, Inc. com 90041L105 1180 24100 SH SOLE 24100 0 0 US Silica Holdings, Inc. com 90346E103 219 17109 SH SOLE 17109 0 0 Unifirst Corp/MA com 904708104 528 2800 SH SOLE 2800 0 0 Uniqure NV com N90064101 34613 442900 SH SOLE 362800 0 80100 Upland Software, Inc. com 91544A109 8655 190100 SH SOLE 79110 0 110990 Urban Outfitters, Inc. com 917047102 214 9400 SH SOLE 9400 0 0 Varex Imaging Corp. com 92214X106 1144 37340 SH SOLE 37340 0 0 Veracyte, Inc. com 92337F107 821 28800 SH SOLE 28800 0 0 Vericel Corp. com 92346J108 9538 504930 SH SOLE 189830 0 315100 Verint Sys Inc. com 92343x100 830 15430 SH SOLE 15430 0 0 Verizon Communications com 92343V104 200 3508 SH SOLE 0 0 3508 Vicor Corp. com 925815102 3942 126950 SH SOLE 58730 0 68220 Vishay Intertechnology com 928298108 635 38450 SH SOLE 38450 0 0 W&T Offshore, Inc. com 92922p106 579 116800 SH SOLE 116800 0 0 Wal Mart Stores Inc. com 931142103 281 2543 SH SOLE 0 0 2543 Walker & Dunlop, Inc. com 93148P102 547 10286 SH SOLE 10286 0 0 Werner Enterprises, Inc. com 950755108 233 7500 SH SOLE 7500 0 0 Williams-Sonoma, Inc. com 969904101 1367 21030 SH SOLE 21030 0 0 Wolverine World Wide com 978097103 596 21645 SH SOLE 21645 0 0 Worthington Inds. 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