13F-HR filed by OBERWEIS ASSET MANAGEMENT INC/
OBERWEIS ASSET MANAGEMENT INC/ filed this 13F-HR for the quarter ended 2021-03-31, filed 2021-05-17, with 170 holding rows worth $488,893,000.
- Accession
- 0001104659-21-067773
- Filer
- CIK 937886
- Filed
- 2021-05-17
- Accepted by EDGAR
- acceptance time not in the bulk data set
- Ingested
- Source
- SEC quarterly data set
13F report for Q1 2021
A holdings report, 170 entries on the cover page, a total value of $488,893,000 stated on the cover page (in dollars after the unit check, H1), rows summing to $488,893,000 with VALUE read as thousands by filing date, 13F file number 028-04688. The quarter's positions are built on this report. The resolved quarter.
The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).
| Issuer as filed | CUSIP | Class | Amount | Value | Value read as | Type |
|---|---|---|---|---|---|---|
| CONSTELLIUM SE | F21107101 | CL A SHS | 6,203,397 | $91,190,000 | thousands by filing date | |
| FIVERR INTL LTD ORD SHS | M4R82T106 | Stock | 339,624 | $73,760,000 | thousands by filing date | |
| KORNIT DIGITAL LTD | M6372Q113 | SHS | 416,851 | $41,318,000 | thousands by filing date | |
| ENDAVA PLC ADS | 29260V105 | ADR | 473,031 | $40,061,000 | thousands by filing date | |
| SEA LTD | 81141R100 | SPONSORD ADS | 50,063 | $11,176,000 | thousands by filing date | |
| CHANNELADVISOR CORP | 159179100 | COM | 427,900 | $10,077,000 | thousands by filing date | |
| ORGANOGENESIS HOLDINGS INC | 68621F102 | COMMON STOCK | 487,420 | $8,881,000 | thousands by filing date | |
| UPWORK INC | 91688F104 | COM | 185,370 | $8,299,000 | thousands by filing date | |
| ALPHATEC HLDGS INC | 02081G201 | COM NEW | 435,460 | $6,876,000 | thousands by filing date | |
| SYNAPTICS INC COM | 87157D109 | Stock | 49,300 | $6,676,000 | thousands by filing date | |
| CASTLE BIOSCIENCES INC | 14843C105 | COMMON STOCK | 97,070 | $6,645,000 | thousands by filing date | |
| SHUTTERSTOCK INC COM | 825690100 | Stock | 71,169 | $6,337,000 | thousands by filing date | |
| II VI INC | 902104108 | COM | 82,960 | $5,672,000 | thousands by filing date | |
| DECKERS OUTDOOR CORP | 243537107 | COM | 16,120 | $5,326,000 | thousands by filing date | |
| INMODE LTD SHS | M5425M103 | Stock | 72,160 | $5,222,000 | thousands by filing date | |
| TUPPERWARE BRANDS CORP | 899896104 | COM | 194,440 | $5,135,000 | thousands by filing date | |
| ULTRA CLEAN HLDGS INC COM | 90385V107 | Stock | 80,210 | $4,655,000 | thousands by filing date | |
| CAREDX INC | 14167L103 | COM | 65,840 | $4,483,000 | thousands by filing date | |
| VNET GROUP INC | 90138A103 | SPONSORED ADS A | 131,800 | $4,257,000 | thousands by filing date | |
| BJS WHSL CLUB HLDGS INC COM | 05550J101 | Stock | 86,830 | $3,895,000 | thousands by filing date | |
| MALIBU BOATS INC A | 56117J100 | COMMON STOCK | 45,760 | $3,646,000 | thousands by filing date | |
| MODEL N INC | 607525102 | COM | 94,640 | $3,334,000 | thousands by filing date | |
| SHOPIFY INC | 82509L107 | CL A SUB VTG SHS | 2,920 | $3,231,000 | thousands by filing date | |
| AVIAT NETWORKS INC | 05366Y201 | COMMON STOCK | 42,500 | $3,019,000 | thousands by filing date | |
| AXCELIS TECHNOLOGIES INC | 054540208 | COM NEW | 72,380 | $2,974,000 | thousands by filing date | |
| HALOZYME THERAPEUTICS INC COM | 40637H109 | Stock | 68,900 | $2,872,000 | thousands by filing date | |
| CADENCE DESIGN SYSTEM INC COM | 127387108 | Stock | 19,424 | $2,661,000 | thousands by filing date | |
| MASONITE INTERNATIONAL CORP | 575385109 | COMMON STOCK-FO | 22,795 | $2,627,000 | thousands by filing date | |
| BILIBILI INC SPONS ADS REP Z | 090040106 | ADR | 24,500 | $2,623,000 | thousands by filing date | |
| GOLDEN NUGGET ONLINE GAMIN | 38113L107 | COM CL A | 175,400 | $2,368,000 | thousands by filing date | |
| ANGIODYNAMICS INC | 03475V101 | COM | 98,300 | $2,300,000 | thousands by filing date | |
| AMERESCO INC | 02361E108 | CL A | 43,008 | $2,091,000 | thousands by filing date | |
| RAPID7 INC COM | 753422104 | Stock | 26,280 | $1,961,000 | thousands by filing date | |
| MAGNACHIP SEMICONDUCTOR CORP | 55933J203 | CMN | 72,300 | $1,800,000 | thousands by filing date | |
| VONAGE HLDGS CORP | 92886T201 | COM | 151,210 | $1,787,000 | thousands by filing date | |
| BOOT BARN HLDGS INC | 099406100 | COM | 28,400 | $1,770,000 | thousands by filing date | |
| SPY | 78462F103 | SHS | 4,377 | $1,735,000 | thousands by filing date | |
| ZUMIEZ INC | 989817101 | COMMON STOCK | 40,300 | $1,729,000 | thousands by filing date | |
| TREX CO INC | 89531P105 | COM | 18,240 | $1,670,000 | thousands by filing date | |
| AVID BIOSERVICES INC | 05368M106 | COM | 86,400 | $1,575,000 | thousands by filing date | |
| SOMNIGROUP INTERNATIONAL INC COM | 88023U101 | Stock | 42,865 | $1,567,000 | thousands by filing date | |
| M/I HOMES INC | 55305B101 | COM | 26,300 | $1,554,000 | thousands by filing date | |
| HEIDRICK & STRUGGLES INTL IN | 422819102 | COM | 43,500 | $1,554,000 | thousands by filing date | |
| VERITIV CORP | 923454102 | COM | 36,000 | $1,531,000 | thousands by filing date | |
| DIEBOLD NXDF INC | 253651103 | COM | 104,300 | $1,474,000 | thousands by filing date | |
| ACADIA HEALTHCARE COMPANY INC COM | 00404A109 | Stock | 25,625 | $1,464,000 | thousands by filing date | |
| MAGNITE INC COM | 55955D100 | Stock | 34,967 | $1,455,000 | thousands by filing date | |
| KFORCE INC COM | 493732101 | Stock | 27,000 | $1,447,000 | thousands by filing date | |
| COMMERCIAL VEH GROUP INC | 202608105 | COM | 143,900 | $1,389,000 | thousands by filing date | |
| CRA INTL INC | 12618T105 | COM | 18,500 | $1,381,000 | thousands by filing date | |
| CAMTEK LTD ORD | M20791105 | Stock | 45,980 | $1,375,000 | thousands by filing date | |
| CROSS CTRY HEALTHCARE INC | 227483104 | COM | 109,900 | $1,373,000 | thousands by filing date | |
| LIQTECH INTL INC | 53632A201 | COM | 168,729 | $1,365,000 | thousands by filing date | |
| UPLAND SOFTWARE INC | 91544A109 | COMMON STOCK | 28,600 | $1,350,000 | thousands by filing date | |
| RADNET INC | 750491102 | COM | 62,000 | $1,349,000 | thousands by filing date | |
| CROCS INC COM | 227046109 | Stock | 16,470 | $1,325,000 | thousands by filing date | |
| COHU INC | 192576106 | COM | 31,676 | $1,325,000 | thousands by filing date | |
| PERFICIENT INC | 71375U101 | COM | 22,500 | $1,321,000 | thousands by filing date | |
| FULL HSE RESORTS INC | 359678109 | COM | 152,543 | $1,298,000 | thousands by filing date | |
| VOXX INTERNATIONAL CORP | 91829F104 | COMMON STOCK | 67,400 | $1,285,000 | thousands by filing date | |
| MAXLINEAR INC | 57776J100 | COM | 37,050 | $1,263,000 | thousands by filing date | |
| DIGITAL TURBINE INC | 25400W102 | COM NEW | 15,075 | $1,211,000 | thousands by filing date | |
| MOVADO GROUP INC COM | 624580106 | Stock | 42,500 | $1,209,000 | thousands by filing date | |
| TRIP COM GROUP LTD ADS | 89677Q107 | ADR | 30,000 | $1,189,000 | thousands by filing date | |
| VOCERA COMMUNICATIONS INC | 92857F107 | COMMON STOCK | 30,826 | $1,186,000 | thousands by filing date | |
| ENTRAVISION COMMUNICATIONS A | 29382R107 | COMMON STOCK | 293,300 | $1,185,000 | thousands by filing date | |
| MERCANTILE BANK CORP | 587376104 | COMMON STOCK | 36,472 | $1,184,000 | thousands by filing date | |
| DASEKE INC | 23753F107 | COM | 137,600 | $1,168,000 | thousands by filing date | |
| HIMAX TECHNOLOGIES INC SPONSORED ADR | 43289P106 | ADR | 85,000 | $1,160,000 | thousands by filing date | |
| PDD HOLDINGS INC SPONSORED ADS | 722304102 | ADR | 8,500 | $1,138,000 | thousands by filing date | |
| BUILDERS FIRSTSOURCE INC COM | 12008R107 | Stock | 22,900 | $1,062,000 | thousands by filing date | |
| ENPRO INC | 29355X107 | COM | 12,400 | $1,057,000 | thousands by filing date | |
| FLEXSTEEL INDS | 339382103 | COMMON STOCK | 30,000 | $1,046,000 | thousands by filing date | |
| FARFETCH LTD | 30744W107 | ORD SH CL A | 19,300 | $1,023,000 | thousands by filing date | |
| RPC INC | 749660106 | COMMON STOCK | 189,400 | $1,023,000 | thousands by filing date | |
| THE SHYFT GROUP | 825698103 | COMMON STOCK | 27,400 | $1,019,000 | thousands by filing date | |
| HACKETT GROUP INC | 404609109 | COM | 62,000 | $1,016,000 | thousands by filing date | |
| GRIFFON CORP | 398433102 | COM | 36,800 | $1,000,000 | thousands by filing date | |
| INOTIV INC | 45783Q100 | COM | 50,000 | $1,000,000 | thousands by filing date | |
| COLLEGIUM PHARMACEUTICAL INC | 19459J104 | COM | 41,200 | $976,000 | thousands by filing date | |
| NEURONETICS INC | 64131A105 | COM | 78,500 | $971,000 | thousands by filing date | |
| ALLIENT INC | 019330109 | COM | 18,600 | $955,000 | thousands by filing date | |
| EMPLOYERS HOLDINGS INC | 292218104 | COMMON STOCK | 22,000 | $947,000 | thousands by filing date | |
| OOMA INC | 683416101 | COM | 59,400 | $941,000 | thousands by filing date | |
| CEVA INC | 157210105 | COMMON STOCK | 16,600 | $932,000 | thousands by filing date | |
| EXTREME NETWORKS INC | 30226D106 | COM | 106,200 | $929,000 | thousands by filing date | |
| ABSOLUTE SOFTWARE CORP | 00386B109 | COM | 66,300 | $920,000 | thousands by filing date | |
| DAQO NEW ENERGY CORP. (ADR) | 23703Q203 | SPNSRD ADS NEW | 12,000 | $906,000 | thousands by filing date | |
| Apple Inc | 037833100 | COM | 7,413 | $905,000 | thousands by filing date | |
| LUNA INNOVATIONS INC | 550351100 | COM | 85,000 | $895,000 | thousands by filing date | |
| VISHAY PRECISION GROUP INC | 92835K103 | COM | 29,000 | $893,000 | thousands by filing date | |
| JOHNSON OUTDOORS INC A | 479167108 | COMMON STOCK | 6,000 | $857,000 | thousands by filing date | |
| RIBBON COMMUNICATIONS INC | 762544104 | COMMON STOCK | 101,400 | $832,000 | thousands by filing date | |
| ANTARES PHARMA INC | 036642106 | COM | 200,600 | $824,000 | thousands by filing date | |
| PATTERSON-UTI ENERGY INC | 703481101 | COM | 114,000 | $813,000 | thousands by filing date | |
| First Foundation Inc | 32026V104 | Common Stock | 32,800 | $769,000 | thousands by filing date | |
| STRATTEC SECURITY CORP | 863111100 | COMMON STOCK | 16,100 | $755,000 | thousands by filing date | |
| MYR GROUP INC | 55405W104 | COM | 10,100 | $724,000 | thousands by filing date | |
| INTERNATIONAL MONEY EXPRESS | 46005L101 | COM | 48,000 | $720,000 | thousands by filing date | |
| TENCENT MUSIC ENTMT GROUP SPON ADS | 88034P109 | ADR | 35,000 | $717,000 | thousands by filing date | |
| FUTU HLDGS LTD SPON ADS CL A | 36118L106 | ADR | 4,500 | $715,000 | thousands by filing date | |
| AIR TRANSPORT SERVICES GRP I | 00922R105 | COM | 24,000 | $702,000 | thousands by filing date | |
| Microsoft Corp | 594918104 | COM | 2,880 | $679,000 | thousands by filing date | |
| JPMorgan Chase & Co | 46625H100 | COM | 4,430 | $674,000 | thousands by filing date | |
| ADTRAN INC | 00738A106 | COMMON STOCK | 39,800 | $664,000 | thousands by filing date | |
| CLEARFIELD INC | 18482P103 | COMMON STOCK | 21,600 | $651,000 | thousands by filing date | |
| AMEDISYS INC | 023436108 | COM | 2,402 | $636,000 | thousands by filing date | |
| QFIN HOLDINGS INC AMERICAN DEP | 88557W101 | ADR | 24,000 | $624,000 | thousands by filing date | |
| HELMERICH & PAYNE INC | 423452101 | COM | 22,981 | $620,000 | thousands by filing date | |
| VAREX IMAGING CORP | 92214X106 | COMMON STOCK | 30,000 | $615,000 | thousands by filing date | |
| EL POLLO LOCO HOLDINGS INC | 268603107 | COMMON STOCK | 38,000 | $613,000 | thousands by filing date | |
| BAIDU INC SPON ADR REP A | 056752108 | ADR | 2,760 | $600,000 | thousands by filing date | |
| XPENG INC ADS | 98422D105 | ADR | 15,000 | $548,000 | thousands by filing date | |
| NATURAL GROCERS BY VITAMIN C | 63888U108 | COMMON STOCK | 31,200 | $548,000 | thousands by filing date | |
| TAL ED GROUP SPONSORED ADS | 874080104 | ADR | 10,000 | $539,000 | thousands by filing date | |
| ACM RESH INC COM CL A | 00108J109 | Stock | 6,000 | $485,000 | thousands by filing date | |
| PREFORMED LINE PRODS CO | 740444104 | COM | 7,000 | $481,000 | thousands by filing date | |
| MasterCard, Inc | 57636Q104 | COM | 1,344 | $478,000 | thousands by filing date | |
| KINGSOFT CLOUD HLDGS LTD ADS | 49639K101 | ADR | 12,100 | $476,000 | thousands by filing date | |
| ALIBABA GROUP HLDG LTD | 01609W102 | SPONSORED ADS | 1,920 | $435,000 | thousands by filing date | |
| HELIX ENERGY SOLUTIONS GRP INC COM | 42330P107 | Stock | 83,300 | $421,000 | thousands by filing date | |
| Johnson & Johnson | 478160104 | COM | 2,487 | $409,000 | thousands by filing date | |
| ACCURAY INC DEL | 004397105 | COM | 81,000 | $401,000 | thousands by filing date | |
| Amgen Inc. | 031162100 | COM | 1,495 | $372,000 | thousands by filing date | |
| NEWMONT CORP | 651639106 | COM | 6,176 | $372,000 | thousands by filing date | |
| Intel Corp | 458140100 | COM | 5,787 | $370,000 | thousands by filing date | |
| TRAVELERS COMPANIES INC COM | 89417E109 | Stock | 2,440 | $367,000 | thousands by filing date | |
| ZHIHU INC | 98955N108 | ADR | 45,000 | $365,000 | thousands by filing date | |
| SELECT MED HLDGS CORP | 81619Q105 | COM | 9,300 | $317,000 | thousands by filing date | |
| Amazon.com, Inc | 023135106 | COM | 100 | $309,000 | thousands by filing date | |
| ADIENT PLC | G0084W101 | ORD SHS | 6,900 | $305,000 | thousands by filing date | |
| CLEAN HARBORS INC COM | 184496107 | Stock | 3,600 | $303,000 | thousands by filing date | |
| AT HOME GROUP INC | 04650Y100 | COM | 10,200 | $293,000 | thousands by filing date | |
| CONCENTRIX CORP | 20602D101 | COM | 1,900 | $284,000 | thousands by filing date | |
| RESMED INC COM | 761152107 | Stock | 1,450 | $281,000 | thousands by filing date | |
| ADVANCED ENERGY INDS COM | 007973100 | Stock | 2,500 | $273,000 | thousands by filing date | |
| UFP INDUSTRIES INC | 90278Q108 | COM | 3,500 | $265,000 | thousands by filing date | |
| BEACON ROOFING SUPPLY INC | 073685109 | COM | 5,000 | $262,000 | thousands by filing date | |
| COMMVAULT SYS INC COM | 204166102 | Stock | 3,900 | $252,000 | thousands by filing date | |
| HILLENBRAND INC | 431571108 | COM | 5,200 | $248,000 | thousands by filing date | |
| ICF INTL INC | 44925C103 | COM | 2,800 | $245,000 | thousands by filing date | |
| GREEN DOT CORP CLASS A | 39304D102 | CL A | 5,300 | $243,000 | thousands by filing date | |
| McDonalds Corporation | 580135101 | COM | 1,076 | $241,000 | thousands by filing date | |
| Walmart Inc. | 931142103 | COM | 1,758 | $239,000 | thousands by filing date | |
| HEADHUNTER GROUP PLC ADR | 42207L106 | COM | 6,800 | $231,000 | thousands by filing date | |
| AMKOR TECHNOLOGY INC COM | 031652100 | Stock | 9,700 | $230,000 | thousands by filing date | |
| NEXTGEN HEALTHCARE INC | 65343C102 | COMMON STOCK | 12,700 | $230,000 | thousands by filing date | |
| STEWART INFORMATION SVCS COR | 860372101 | COM | 4,400 | $229,000 | thousands by filing date | |
| 2U INC | 90214J101 | COM | 6,000 | $229,000 | thousands by filing date | |
| Anywhere Real Estate Inc | 75605Y106 | Common Stock | 15,000 | $227,000 | thousands by filing date | |
| TTEC HLDGS INC | 89854H102 | COM | 2,200 | $221,000 | thousands by filing date | |
| MACOM TECH SOLUTIONS HLDGS INC COM | 55405Y100 | Stock | 3,800 | $220,000 | thousands by filing date | |
| TERADATA CORP DEL | 88076W103 | COM | 5,700 | $220,000 | thousands by filing date | |
| CENTRAL GARDEN PET CO | 153527106 | COMMON STOCK | 3,800 | $220,000 | thousands by filing date | |
| BHP BILLITON LIMITED SPONSORED ADS | 088606108 | ADR | 3,043 | $211,000 | thousands by filing date | |
| MERIT MED SYS INC COM | 589889104 | Stock | 3,500 | $210,000 | thousands by filing date | |
| Alphabet Inc. Reg. Shares C | 02079K107 | COM | 100 | $207,000 | thousands by filing date | |
| GUESS INC COM | 401617105 | Stock | 8,800 | $207,000 | thousands by filing date | |
| PENNYMAC FINL SVCS INC NEW | 70932M107 | COM | 3,100 | $207,000 | thousands by filing date | |
| BANK OF NY MELLON CORP COM | 064058100 | Stock | 4,247 | $201,000 | thousands by filing date | |
| EVERFORTH INC COM | 00191U102 | Stock | 2,100 | $200,000 | thousands by filing date | |
| GEOPARK LTD USD SHS | G38327105 | Stock | 12,500 | $200,000 | thousands by filing date | |
| CORNERSTONE ONDEMAND INC COM | 21925Y103 | Stock | 4,600 | $200,000 | thousands by filing date | |
| OPTION CARE HEALTH INC COM NEW | 68404L201 | Stock | 10,200 | $181,000 | thousands by filing date | |
| NOV INC | 62955J103 | COM | 12,800 | $176,000 | thousands by filing date | |
| Xenacare Hldgs, Inc. | 98401A106 | COM | 140,000 | $0 | thousands by filing date | Value filed as zero, left out of ratios. |
| AVATAR VENTURES CORP | 05350B100 | COMMON STOCK | 10,000 | $0 | thousands by filing date | Value filed as zero, left out of ratios. |
| Titan Oil & Gas Inc New | 888309101 | COM | 10,000 | $0 | thousands by filing date | Value filed as zero, left out of ratios. |
| AMERICAN POWER ORD | 02906T107 | COM | 10,000 | $0 | thousands by filing date | Value filed as zero, left out of ratios. |
| AMR Corp Escrow | 001ESC102 | COM | 18,000 | $0 | thousands by filing date | Value filed as zero, left out of ratios. |
Amendment chain
| Filing | Role | Filed | Accepted | Ingested |
|---|---|---|---|---|
| 13F-HR 0001104659-21-067773 | this filing | 2021-05-17 | acceptance time not in the bulk data set |