OBERWEIS ASSET MANAGEMENT INC/ Q4 2020 Filing
Filed February 16, 2021
Portfolio Value
$379.8B
Holdings
138
Report Date
Q4 2020
Filing Type
13F-HR
All Holdings (138 positions)
| # | Stock | Shares | Value | % Portfolio | Type |
|---|---|---|---|---|---|
| 1 | CSTMConstellium NV Cl A | 6,380,797 | $89.3B | 23.50% | |
| 2 | FVRRFiverr Intl Ltd. | 349,224 | $68.1B | 17.94% | |
| 3 | DAVAEndava Plc Ads | 469,431 | $36.0B | 9.49% | |
| 4 | UPWKUpwork, Inc. | 401,050 | $13.8B | 3.65% | |
| 5 | CSTLCastle Biosciences, Inc. | 163,110 | $11.0B | 2.88% | |
| 6 | CDNACareDx, Inc. | 123,240 | $8.9B | 2.35% | |
| 7 | MGNIMagnite, Inc. | 275,857 | $8.5B | 2.23% | |
| 8 | —ChannelAdvisor Corporation | 314,810 | $5.0B | 1.32% | |
| 9 | TUPTupperware Corp. | 145,780 | $4.7B | 1.24% | |
| 10 | DECKDeckers Outdoor Corp. | 16,190 | $4.6B | 1.22% | |
| 11 | BANDBandwidth, Inc. | 29,150 | $4.5B | 1.18% | |
| 12 | SSTKShutterstock, Inc. | 57,230 | $4.1B | 1.08% | |
| 13 | ATECAlphatec Hldgs Inc. | 263,400 | $3.8B | 1.01% | |
| 14 | VNET21Vianet Group, Inc. - ADR | 109,100 | $3.8B | 1.00% | |
| 15 | IPHIINPHI Corp. | 23,110 | $3.7B | 0.98% | |
| 16 | TNDMTandem Diabetes Care, Inc. | 36,980 | $3.5B | 0.93% | |
| 17 | MODNEURModel N, Inc. | 84,480 | $3.0B | 0.79% | |
| 18 | APPSDigital Turbine, Inc. | 51,275 | $2.9B | 0.76% | |
| 19 | COHRII-VI Inc. | 36,040 | $2.7B | 0.72% | |
| 20 | ADUSAddus Homecare Corp. | 22,600 | $2.6B | 0.70% | |
| 21 | CA8ACACI International, Inc. | 10,225 | $2.5B | 0.67% | |
| 22 | RPDRapid7, Inc. | 27,560 | $2.5B | 0.65% | |
| 23 | —Golden Nugget Online Gaming, I | 120,100 | $2.4B | 0.62% | |
| 24 | TALTal Education Group ADR | 30,000 | $2.1B | 0.56% | |
| 25 | SESea Ltd | 10,764 | $2.1B | 0.56% | |
| 26 | CROXCrocs, Inc. | 31,300 | $2.0B | 0.52% | |
| 27 | PDDPinduoduo Inc. | 11,000 | $2.0B | 0.51% | |
| 28 | AMRCAmeresco, Inc. | 36,808 | $1.9B | 0.51% | |
| 29 | SYNASynaptics, Inc. | 19,930 | $1.9B | 0.51% | |
| 30 | BILIBilibili, Inc. Spon ADR | 22,200 | $1.9B | 0.50% | |
| 31 | SHYFShyft Group, Inc. | 66,600 | $1.9B | 0.50% | |
| 32 | TREXTrex Company, Inc. | 21,190 | $1.8B | 0.47% | |
| 33 | BJBJs Wholesale Club Holdings, I | 46,330 | $1.7B | 0.45% | |
| 34 | INMDInmode Ltd. | 34,600 | $1.6B | 0.43% | |
| 35 | SPYSPDR S&P 500 ETF Trust | 4,390 | $1.6B | 0.43% | |
| 36 | ZM3Zumiez Inc. | 40,300 | $1.5B | 0.39% | |
| 37 | ACLSAxcelis Technologies | 49,320 | $1.4B | 0.38% | |
| 38 | DOOREURMasonite Intl Corp. | 14,300 | $1.4B | 0.37% | |
| 39 | —LiqTech International, Inc | 168,729 | $1.4B | 0.36% | |
| 40 | ACHCAcadia Healthcare Co., Inc. | 26,195 | $1.3B | 0.35% | |
| 41 | UPLDUpland Software, Inc. | 28,600 | $1.3B | 0.35% | |
| 42 | CAMTCamtek, Ltd. | 58,980 | $1.3B | 0.34% | |
| 43 | —EnPro Industries, Inc. | 16,400 | $1.2B | 0.33% | |
| 44 | BOOTBoot Barn Hldgs, Inc. | 28,400 | $1.2B | 0.32% | |
| 45 | COHUCohu, Inc. | 31,676 | $1.2B | 0.32% | |
| 46 | TPDTempur Sealy International, In | 44,190 | $1.2B | 0.31% | |
| 47 | MBUUMalibu Boats, Inc. | 19,100 | $1.2B | 0.31% | |
| 48 | VCRAUSDVocera Communications, Inc. | 28,100 | $1.2B | 0.31% | |
| 49 | MHOM/I Homes, Inc. | 26,300 | $1.2B | 0.31% | |
| 50 | UCTTUltra Clean Holdings | 37,000 | $1.2B | 0.30% | |
| 51 | MXMagnachip Semiconductor Corp. | 85,300 | $1.2B | 0.30% | |
| 52 | ATSG*Air Transport Services Group, | 36,400 | $1.1B | 0.30% | |
| 53 | PPHMEURAvid Bioservices, Inc. | 95,500 | $1.1B | 0.29% | |
| 54 | SAHSonic Automotive 'a' | 28,100 | $1.1B | 0.29% | |
| 55 | PRFTUSDPerficient Inc. | 22,500 | $1.1B | 0.28% | |
| 56 | AAPLApple, Inc. | 7,991 | $1.1B | 0.28% | |
| 57 | MYRGMYR Group, Inc. | 17,600 | $1.1B | 0.28% | |
| 58 | —VOXX International Corporation | 82,300 | $1.1B | 0.28% | |
| 59 | FLXSFlexsteel Inds, Inc. | 30,000 | $1.0B | 0.28% | |
| 60 | ENSGEnsign Group, Inc. | 14,200 | $1.0B | 0.27% | |
| 61 | NIONIO Inc | 20,000 | $975.0M | 0.26% | |
| 62 | ALNTAllied Motion Technologies | 18,600 | $950.0M | 0.25% | |
| 63 | CRAICRA Int'l Inc. | 18,500 | $942.0M | 0.25% | |
| 64 | COLLCollegium Pharmaceutical, Inc. | 46,000 | $921.0M | 0.24% | |
| 65 | ATHMAutohome, Inc. ADR | 9,000 | $897.0M | 0.24% | |
| 66 | ATENA10 Networks, Inc. | 88,100 | $869.0M | 0.23% | |
| 67 | OOMAOOMA Inc. | 59,400 | $855.0M | 0.23% | |
| 68 | CVGICommercial Vehicle Group | 98,000 | $848.0M | 0.22% | |
| 69 | AMEDAmedisys Inc. | 2,852 | $837.0M | 0.22% | |
| 70 | —Antares Pharma, Inc. | 200,600 | $800.0M | 0.21% | |
| 71 | HSIHeidrick & Struggles | 27,000 | $793.0M | 0.21% | |
| 72 | CEVACeva Inc. | 16,600 | $755.0M | 0.20% | |
| 73 | GFFGriffon Corp. | 36,800 | $750.0M | 0.20% | |
| 74 | IMXIInternational Money Express, I | 48,000 | $745.0M | 0.20% | |
| 75 | D0ADada Nexus Limited | 19,900 | $726.0M | 0.19% | |
| 76 | LOCOEl Pollo Loco Hldgs, Inc. | 38,000 | $688.0M | 0.18% | |
| 77 | FFWMFirst Foundation Inc. | 32,800 | $656.0M | 0.17% | |
| 78 | MSFTMicrosoft Corp. | 2,920 | $649.0M | 0.17% | |
| 79 | —Arco Platform Ltd. Com Cl A | 17,620 | $625.0M | 0.16% | |
| 80 | PTENPatterson-Uti Energy, Inc. | 114,000 | $600.0M | 0.16% | |
| 81 | ADTNEURAdtran, Inc. | 39,800 | $588.0M | 0.15% | |
| 82 | JPMJP Morgan Chase & Company Inc. | 4,477 | $569.0M | 0.15% | |
| 83 | SHOPShopify, Inc. | 501 | $567.0M | 0.15% | |
| 84 | XXYCross Country Healthcare, Inc. | 63,800 | $566.0M | 0.15% | |
| 85 | VPGVishay Precision Group | 17,800 | $560.0M | 0.15% | |
| 86 | CDNSCadence Design System, Inc. | 3,956 | $540.0M | 0.14% | |
| 87 | CLFDClearfield, Inc. | 21,600 | $534.0M | 0.14% | |
| 88 | MBWMMercantile Bank Corp. | 19,500 | $530.0M | 0.14% | |
| 89 | JYNTThe Joint Corp. | 20,000 | $525.0M | 0.14% | |
| 90 | FTCHQFarfetch Ltd. | 7,900 | $504.0M | 0.13% | |
| 91 | EFSCEnterprise Finl Svcs | 14,256 | $498.0M | 0.13% | |
| 92 | MAMastercard, Inc. | 1,344 | $480.0M | 0.13% | |
| 93 | PLPCPreformed Line Prods Co. | 7,000 | $479.0M | 0.13% | |
| 94 | RBBNRibbon Communications, Inc. | 72,000 | $472.0M | 0.12% | |
| 95 | BABAAlibaba Group Holding Ltd ADR | 2,010 | $468.0M | 0.12% | |
| 96 | NGVCNatural Grocers By Vitamin C | 31,200 | $429.0M | 0.11% | |
| 97 | MRCYMercury Systems, Inc. | 4,790 | $422.0M | 0.11% | |
| 98 | UUnity Software, Inc. | 2,664 | $409.0M | 0.11% | |
| 99 | DSKEUSDDaseke, Inc. | 70,000 | $407.0M | 0.11% | |
| 100 | —Inovalon Holdings, Inc. | 22,080 | $401.0M | 0.11% |
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