OBERWEIS ASSET MANAGEMENT INC/ Q1 2021 Filing
Filed May 17, 2021
Portfolio Value
$488.9B
Holdings
170
Report Date
Q1 2021
Filing Type
13F-HR
All Holdings (170 positions)
| # | Stock | Shares | Value | % Portfolio | Type |
|---|---|---|---|---|---|
| 1 | CSTMConstellium NV Cl A | 6,203,397 | $91.2B | 18.65% | |
| 2 | FVRRFiverr Intl Ltd. | 339,624 | $73.8B | 15.09% | |
| 3 | KRNTKornit Digital Ltd. | 416,851 | $41.3B | 8.45% | |
| 4 | DAVAEndava Plc Ads | 473,031 | $40.1B | 8.19% | |
| 5 | SESea Ltd | 50,063 | $11.2B | 2.29% | |
| 6 | —ChannelAdvisor Corporation | 427,900 | $10.1B | 2.06% | |
| 7 | ORGOOrganogenesis Hlgs, Inc. | 487,420 | $8.9B | 1.82% | |
| 8 | UPWKUpwork, Inc. | 185,370 | $8.3B | 1.70% | |
| 9 | ATECAlphatec Hldgs Inc. | 435,460 | $6.9B | 1.41% | |
| 10 | SYNASynaptics, Inc. | 49,300 | $6.7B | 1.37% | |
| 11 | CSTLCastle Biosciences, Inc. | 97,070 | $6.6B | 1.36% | |
| 12 | SSTKShutterstock, Inc. | 71,169 | $6.3B | 1.30% | |
| 13 | COHRII-VI Inc. | 82,960 | $5.7B | 1.16% | |
| 14 | DECKDeckers Outdoor Corp. | 16,120 | $5.3B | 1.09% | |
| 15 | INMDInmode Ltd. | 72,160 | $5.2B | 1.07% | |
| 16 | TUPTupperware Corp. | 194,440 | $5.1B | 1.05% | |
| 17 | UCTTUltra Clean Holdings | 80,210 | $4.7B | 0.95% | |
| 18 | CDNACareDx, Inc. | 65,840 | $4.5B | 0.92% | |
| 19 | VNET21Vianet Group, Inc. - ADR | 131,800 | $4.3B | 0.87% | |
| 20 | BJBJs Wholesale Club Holdings, I | 86,830 | $3.9B | 0.80% | |
| 21 | MBUUMalibu Boats, Inc. | 45,760 | $3.6B | 0.75% | |
| 22 | MODNEURModel N, Inc. | 94,640 | $3.3B | 0.68% | |
| 23 | SHOPShopify, Inc. | 2,920 | $3.2B | 0.66% | |
| 24 | AVNWAviat Networks, Inc. | 42,500 | $3.0B | 0.62% | |
| 25 | ACLSAxcelis Technologies | 72,380 | $3.0B | 0.61% | |
| 26 | HALOHalozyme Therapeutics, Inc. | 68,900 | $2.9B | 0.59% | |
| 27 | CDNSCadence Design System, Inc. | 19,424 | $2.7B | 0.54% | |
| 28 | DOOREURMasonite Intl Corp. | 22,795 | $2.6B | 0.54% | |
| 29 | BILIBilibili, Inc. Spon ADR | 24,500 | $2.6B | 0.54% | |
| 30 | —Golden Nugget Online Gaming, I | 175,400 | $2.4B | 0.48% | |
| 31 | ANGOAngiodynamics, Inc. | 98,300 | $2.3B | 0.47% | |
| 32 | AMRCAmeresco, Inc. | 43,008 | $2.1B | 0.43% | |
| 33 | RPDRapid7, Inc. | 26,280 | $2.0B | 0.40% | |
| 34 | MXMagnachip Semiconductor Corp. | 72,300 | $1.8B | 0.37% | |
| 35 | —Vonage Hldgs Corp | 151,210 | $1.8B | 0.37% | |
| 36 | BOOTBoot Barn Hldgs, Inc. | 28,400 | $1.8B | 0.36% | |
| 37 | SPYSPDR S&P 500 ETF Trust | 4,377 | $1.7B | 0.35% | |
| 38 | ZM3Zumiez Inc. | 40,300 | $1.7B | 0.35% | |
| 39 | TREXTrex Company, Inc. | 18,240 | $1.7B | 0.34% | |
| 40 | PPHMEURAvid Bioservices, Inc. | 86,400 | $1.6B | 0.32% | |
| 41 | TPDTempur Sealy International, In | 42,865 | $1.6B | 0.32% | |
| 42 | HSIHeidrick & Struggles | 43,500 | $1.6B | 0.32% | |
| 43 | MHOM/I Homes, Inc. | 26,300 | $1.6B | 0.32% | |
| 44 | VRTVEURVeritiv Corp. | 36,000 | $1.5B | 0.31% | |
| 45 | DBDEURDiebold, Inc. | 104,300 | $1.5B | 0.30% | |
| 46 | ACHCAcadia Healthcare Co., Inc. | 25,625 | $1.5B | 0.30% | |
| 47 | MGNIMagnite, Inc. | 34,967 | $1.5B | 0.30% | |
| 48 | ROFKForce, Inc. | 27,000 | $1.4B | 0.30% | |
| 49 | CVGICommercial Vehicle Group | 143,900 | $1.4B | 0.28% | |
| 50 | CRAICRA Int'l Inc. | 18,500 | $1.4B | 0.28% | |
| 51 | CAMTCamtek, Ltd. | 45,980 | $1.4B | 0.28% | |
| 52 | XXYCross Country Healthcare, Inc. | 109,900 | $1.4B | 0.28% | |
| 53 | —LiqTech International, Inc | 168,729 | $1.4B | 0.28% | |
| 54 | UPLDUpland Software, Inc. | 28,600 | $1.4B | 0.28% | |
| 55 | RDNTRadnet, Inc. | 62,000 | $1.3B | 0.28% | |
| 56 | CROXCrocs, Inc. | 16,470 | $1.3B | 0.27% | |
| 57 | COHUCohu, Inc. | 31,676 | $1.3B | 0.27% | |
| 58 | PRFTUSDPerficient Inc. | 22,500 | $1.3B | 0.27% | |
| 59 | FLLFull House Resorts, Inc. | 152,543 | $1.3B | 0.27% | |
| 60 | —VOXX International Corporation | 67,400 | $1.3B | 0.26% | |
| 61 | MXLMaxlinear, Inc. Class A | 37,050 | $1.3B | 0.26% | |
| 62 | APPSDigital Turbine, Inc. | 15,075 | $1.2B | 0.25% | |
| 63 | MOVMovado Group, Inc. | 42,500 | $1.2B | 0.25% | |
| 64 | CLVTrip.com Group Limited | 30,000 | $1.2B | 0.24% | |
| 65 | VCRAUSDVocera Communications, Inc. | 30,826 | $1.2B | 0.24% | |
| 66 | —Entravision Communications | 293,300 | $1.2B | 0.24% | |
| 67 | MBWMMercantile Bank Corp. | 36,472 | $1.2B | 0.24% | |
| 68 | DSKEUSDDaseke, Inc. | 137,600 | $1.2B | 0.24% | |
| 69 | HIMXHiMax Technolgies ADR | 85,000 | $1.2B | 0.24% | |
| 70 | PDDPinduoduo Inc. | 8,500 | $1.1B | 0.23% | |
| 71 | BLDRBuilders Firstsource | 22,900 | $1.1B | 0.22% | |
| 72 | —EnPro Industries, Inc. | 12,400 | $1.1B | 0.22% | |
| 73 | FLXSFlexsteel Inds, Inc. | 30,000 | $1.0B | 0.21% | |
| 74 | FTCHQFarfetch Ltd. | 19,300 | $1.0B | 0.21% | |
| 75 | RESRPC, Inc. | 189,400 | $1.0B | 0.21% | |
| 76 | SHYFShyft Group, Inc. | 27,400 | $1.0B | 0.21% | |
| 77 | HCKTHackett Group, Inc. | 62,000 | $1.0B | 0.21% | |
| 78 | GFFGriffon Corp. | 36,800 | $1.0B | 0.20% | |
| 79 | NOTVInotiv, Inc. | 50,000 | $1.0B | 0.20% | |
| 80 | COLLCollegium Pharmaceutical, Inc. | 41,200 | $976.0M | 0.20% | |
| 81 | STIMNeuronetics, Inc. | 78,500 | $971.0M | 0.20% | |
| 82 | ALNTAllied Motion Technologies | 18,600 | $955.0M | 0.20% | |
| 83 | EIGEmployers Holdings, Inc. | 22,000 | $947.0M | 0.19% | |
| 84 | OOMAOOMA Inc. | 59,400 | $941.0M | 0.19% | |
| 85 | CEVACeva Inc. | 16,600 | $932.0M | 0.19% | |
| 86 | EXTRExtreme Networks, Inc. | 106,200 | $929.0M | 0.19% | |
| 87 | ABT2EURAbsolute Software Corp. | 66,300 | $920.0M | 0.19% | |
| 88 | DQDaqo New Energy Corp. | 12,000 | $906.0M | 0.19% | |
| 89 | AAPLApple, Inc. | 7,413 | $905.0M | 0.19% | |
| 90 | —Luna Innovations | 85,000 | $895.0M | 0.18% | |
| 91 | VPGVishay Precision Group | 29,000 | $893.0M | 0.18% | |
| 92 | JOUTJohnson Outdoors, Inc. | 6,000 | $857.0M | 0.18% | |
| 93 | RBBNRibbon Communications, Inc. | 101,400 | $832.0M | 0.17% | |
| 94 | —Antares Pharma, Inc. | 200,600 | $824.0M | 0.17% | |
| 95 | PTENPatterson-Uti Energy, Inc. | 114,000 | $813.0M | 0.17% | |
| 96 | FFWMFirst Foundation Inc. | 32,800 | $769.0M | 0.16% | |
| 97 | STRTStrattec Security Corp. | 16,100 | $755.0M | 0.15% | |
| 98 | MYRGMYR Group, Inc. | 10,100 | $724.0M | 0.15% | |
| 99 | IMXIInternational Money Express, I | 48,000 | $720.0M | 0.15% | |
| 100 | TMETencent Music Entertainment | 35,000 | $717.0M | 0.15% |
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