OBERWEIS ASSET MANAGEMENT INC/ Q1 2023 Filing
Filed May 15, 2023
Portfolio Value
$644.5T
Holdings
174
Report Date
Q1 2023
Filing Type
13F-HR
All Holdings (174 positions)
| # | Stock | Shares | Value | % Portfolio | Type |
|---|---|---|---|---|---|
| 1 | CSTMConstellium NV Cl A | 4,553,786 | $69.6T | 10.80% | |
| 2 | ACLSAxcelis Technologies | 271,989 | $36.2T | 5.62% | |
| 3 | AEHRAehr Test Systems | 699,108 | $21.7T | 3.36% | |
| 4 | PIImpinj, Inc. | 146,275 | $19.8T | 3.08% | |
| 5 | PERIPerion Network, Ltd. | 387,170 | $15.3T | 2.38% | |
| 6 | LNTHLantheus Hldgs Inc. | 178,540 | $14.7T | 2.29% | |
| 7 | CROXCrocs, Inc. | 105,350 | $13.3T | 2.07% | |
| 8 | DECKDeckers Outdoor Corp. | 28,280 | $12.7T | 1.97% | |
| 9 | ATECAlphatec Hldgs Inc. | 678,530 | $10.6T | 1.64% | |
| 10 | VRTVEURVeritiv Corp. | 67,490 | $9.1T | 1.42% | |
| 11 | TMDXTransMedics Group, Inc. | 108,300 | $8.2T | 1.27% | |
| 12 | BDCBelden, Inc. | 92,672 | $8.0T | 1.25% | |
| 13 | CLHClean Harbors, Inc. | 50,835 | $7.2T | 1.12% | |
| 14 | ICFIICF International, Inc. | 63,400 | $7.0T | 1.08% | |
| 15 | AMPHAmphastar Pharmaceuticals, Inc | 178,200 | $6.7T | 1.04% | |
| 16 | OSPNOneSpan, Inc. | 361,300 | $6.3T | 0.98% | |
| 17 | HALOHalozyme Therapeutics, Inc. | 164,040 | $6.3T | 0.97% | |
| 18 | CIENCiena Corporation | 118,305 | $6.2T | 0.96% | |
| 19 | VCVisteon Corp. | 39,400 | $6.2T | 0.96% | |
| 20 | ALGMAllegro MicroSystems, Inc. | 123,500 | $5.9T | 0.92% | |
| 21 | EVHEvolent Health, Inc. | 167,710 | $5.4T | 0.84% | |
| 22 | AXNX*Axonics, Inc. | 95,740 | $5.2T | 0.81% | |
| 23 | G2CEveri Hldgs, Inc. | 301,300 | $5.2T | 0.80% | |
| 24 | PRKSSeaWorld Entertainment Inc. | 80,800 | $5.0T | 0.77% | |
| 25 | MXLMaxlinear, Inc. Class A | 140,460 | $4.9T | 0.77% | |
| 26 | MODNEURModel N, Inc. | 146,240 | $4.9T | 0.76% | |
| 27 | FNFabrinet | 40,145 | $4.8T | 0.74% | |
| 28 | VCYTVeracyte, Inc. | 212,180 | $4.7T | 0.73% | |
| 29 | RESRPC, Inc. | 614,785 | $4.7T | 0.73% | |
| 30 | CBTCabot Corp. | 60,351 | $4.6T | 0.72% | |
| 31 | BELFBBel Fuse, Inc. | 121,500 | $4.6T | 0.71% | |
| 32 | SYNASynaptics, Inc. | 40,260 | $4.5T | 0.69% | |
| 33 | UCTTUltra Clean Holdings | 132,700 | $4.4T | 0.68% | |
| 34 | TCMDTactile Sys Technology, Inc. | 259,550 | $4.3T | 0.66% | |
| 35 | INMDInmode Ltd. | 129,000 | $4.1T | 0.64% | |
| 36 | TMCITreace Medical Concepts, Inc. | 154,300 | $3.9T | 0.60% | |
| 37 | ADMAADMA Biologics, Inc. | 1,169,500 | $3.9T | 0.60% | |
| 38 | EXTRExtreme Networks, Inc. | 201,000 | $3.8T | 0.60% | |
| 39 | CDNSCadence Design System, Inc. | 17,700 | $3.7T | 0.58% | |
| 40 | NRDSNerdWallet, Inc. | 229,700 | $3.7T | 0.58% | |
| 41 | STRLSterling Construction Co., Inc | 97,900 | $3.7T | 0.58% | |
| 42 | PLYAPlaya Hotels & Resorts N.V. | 383,200 | $3.7T | 0.57% | |
| 43 | SLABSilicon Laboratories, Inc. | 20,810 | $3.6T | 0.57% | |
| 44 | CHEFThe Chefs Warehouse, Inc. | 103,600 | $3.5T | 0.55% | |
| 45 | IPARInter Parfums | 24,400 | $3.5T | 0.54% | |
| 46 | CAMTCamtek, Ltd. | 117,680 | $3.3T | 0.52% | |
| 47 | AYXEURAlteryx, Inc. Com Cl A | 56,350 | $3.3T | 0.51% | |
| 48 | ATENA10 Networks, Inc. | 213,700 | $3.3T | 0.51% | |
| 49 | CALXCalix, Inc. | 61,100 | $3.3T | 0.51% | |
| 50 | AVNWAviat Networks, Inc. | 94,507 | $3.3T | 0.51% | |
| 51 | FELEFranklin Electric | 34,500 | $3.2T | 0.50% | |
| 52 | SOYSunOpta, Inc. | 420,800 | $3.2T | 0.50% | |
| 53 | MMSIMerit Medical System Inc | 43,800 | $3.2T | 0.50% | |
| 54 | FMFFormfactor Inc. | 101,500 | $3.2T | 0.50% | |
| 55 | MMSMaximus, Inc. | 40,800 | $3.2T | 0.50% | |
| 56 | EZPWEZCorp, Inc. | 371,500 | $3.2T | 0.50% | |
| 57 | FSSFederal Signal Corp. | 58,300 | $3.2T | 0.49% | |
| 58 | BOOTBoot Barn Hldgs, Inc. | 41,200 | $3.2T | 0.49% | |
| 59 | MTSIMacom Technology Solutions | 44,100 | $3.1T | 0.48% | |
| 60 | CECOCECO Environmental Corp. | 222,600 | $3.1T | 0.48% | |
| 61 | SITMSiTime Corporation | 21,800 | $3.1T | 0.48% | |
| 62 | OPCHOption Care Health Inc. | 97,400 | $3.1T | 0.48% | |
| 63 | VVXV2X, Inc. | 77,800 | $3.1T | 0.48% | |
| 64 | MGPIMGP Ingredients, Inc. | 31,950 | $3.1T | 0.48% | |
| 65 | HAEHaemonetics Corp. | 36,900 | $3.1T | 0.47% | |
| 66 | ALSNAllison Transmission Holdings, | 66,400 | $3.0T | 0.47% | |
| 67 | CALYTopgolf Callaway Brands Corp. | 138,300 | $3.0T | 0.46% | |
| 68 | SPUSDSP Plus Corporation | 86,800 | $3.0T | 0.46% | |
| 69 | D0ADada Nexus Limited | 350,712 | $3.0T | 0.46% | |
| 70 | ATDATI, Inc. | 72,900 | $2.9T | 0.45% | |
| 71 | KWRQuaker Chemical Corporation | 14,400 | $2.9T | 0.44% | |
| 72 | PFBCPreferred Bank | 51,500 | $2.8T | 0.44% | |
| 73 | PLABPhotronics, Inc. | 169,300 | $2.8T | 0.44% | |
| 74 | OI*O-I Glass, Inc. | 120,000 | $2.7T | 0.42% | |
| 75 | —Applied Industrial | 18,800 | $2.7T | 0.41% | |
| 76 | MCRIMonarch Casino & Resort, Inc. | 35,400 | $2.6T | 0.41% | |
| 77 | FCFranklin Covey Co. | 68,200 | $2.6T | 0.41% | |
| 78 | ABMABM Industries, Inc. | 57,900 | $2.6T | 0.40% | |
| 79 | BLBDBlue Bird Corporation | 127,300 | $2.6T | 0.40% | |
| 80 | OXMOxford Inds, Inc. | 24,600 | $2.6T | 0.40% | |
| 81 | PDCEUSDPDC Energy, Inc. | 39,960 | $2.6T | 0.40% | |
| 82 | HAYNUSDHaynes Intl, Inc. | 50,900 | $2.5T | 0.40% | |
| 83 | ACMRACM Research, Inc. Class A | 215,600 | $2.5T | 0.39% | |
| 84 | LYTSLSI Industries Inc. | 180,700 | $2.5T | 0.39% | |
| 85 | ACHCAcadia Healthcare Co., Inc. | 34,800 | $2.5T | 0.39% | |
| 86 | ESTEEUREarthstone Energy Inc. | 191,900 | $2.5T | 0.39% | |
| 87 | HEESEURH&E Equipment Services, Inc. | 55,800 | $2.5T | 0.38% | |
| 88 | CPRXCatalyst Pharmaceuticals, Inc. | 147,400 | $2.4T | 0.38% | |
| 89 | EIGEmployers Holdings, Inc. | 57,900 | $2.4T | 0.37% | |
| 90 | IMXIInternational Money Express, I | 91,800 | $2.4T | 0.37% | |
| 91 | HXLHexcel Corporation | 34,600 | $2.4T | 0.37% | |
| 92 | NSPInsperity, Inc. | 19,100 | $2.3T | 0.36% | |
| 93 | ZETAZeta Global Holdings Corp. | 213,300 | $2.3T | 0.36% | |
| 94 | DXLGDestination XL Group, Inc. | 410,617 | $2.3T | 0.35% | |
| 95 | MNSOMINISO Group Holding Limited | 126,800 | $2.2T | 0.35% | |
| 96 | KTBKontoor Brands, Inc. | 46,300 | $2.2T | 0.35% | |
| 97 | VPGVishay Precision Group | 53,400 | $2.2T | 0.35% | |
| 98 | ALITAlight, Inc. | 241,756 | $2.2T | 0.35% | |
| 99 | HLITHarmonic, Inc. | 152,500 | $2.2T | 0.35% | |
| 100 | SCSCScansource, Inc. | 72,900 | $2.2T | 0.34% |
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