13F HOLDINGS REPORT
OBERWEIS ASSET MANAGEMENT INC/
Quarter ended Q1 2023 · Filed February 14, 2023 · Accession 0001213900-23-011274
Total Value
$470.4M
Positions
168
Other Managers
0
Confidential Omitted
No
Holdings (168)
| # | Issuer | Ticker / CUSIP | Shares | Value | % of Filing |
|---|---|---|---|---|---|
| 1 | Constellium NV Cl A | CSTM | 4,939,312 | $58.4M | 12.42% |
| 2 | Axcelis Technologies | ACLS | 279,549 | $22.2M | 4.72% |
| 3 | Aehr Test Systems | AEHR | 607,608 | $12.2M | 2.60% |
| 4 | Impinj, Inc. | PI | 110,665 | $12.1M | 2.57% |
| 5 | Crocs, Inc. | CROX | 104,050 | $11.3M | 2.40% |
| 6 | Deckers Outdoor Corp. | DECK | 27,120 | $10.8M | 2.30% |
| 7 | Super Micro Computer Inc. | SMCI | 121,240 | $10.0M | 2.12% |
| 8 | Clearfield, Inc. | CLFD | 94,540 | $8.9M | 1.89% |
| 9 | Lantheus Hldgs Inc. | LNTH | 164,940 | $8.4M | 1.79% |
| 10 | Halozyme Therapeutics, Inc. | HALO | 143,390 | $8.2M | 1.73% |
| 11 | Veritiv Corp. | 923454102 | 62,142 | $7.6M | 1.61% |
| 12 | Belden, Inc. | BDC | 91,769 | $6.6M | 1.40% |
| 13 | Perion Network, Ltd. | PERI | 247,400 | $6.3M | 1.33% |
| 14 | Alphatec Hldgs Inc. | ATEC | 503,290 | $6.2M | 1.32% |
| 15 | Model N, Inc. | 607525102 | 145,340 | $5.9M | 1.25% |
| 16 | Clean Harbors, Inc. | CLH | 48,335 | $5.5M | 1.17% |
| 17 | TransMedics Group, Inc. | TMDX | 82,400 | $5.1M | 1.08% |
| 18 | Ameresco, Inc. | AMRC | 86,208 | $4.9M | 1.05% |
| 19 | Acadia Healthcare Co., Inc. | ACHC | 58,780 | $4.8M | 1.03% |
| 20 | ICF International, Inc. | 44925C103 | 43,400 | $4.3M | 0.91% |
| 21 | Ciena Corporation | CIEN | 80,385 | $4.1M | 0.87% |
| 22 | Cadence Design System, Inc. | CDNS | 25,500 | $4.1M | 0.87% |
| 23 | Evolent Health, Inc. | EVH | 139,340 | $3.9M | 0.83% |
| 24 | Maxlinear, Inc. Class A | MXL | 113,460 | $3.9M | 0.82% |
| 25 | Bel Fuse, Inc. | BELFB | 114,800 | $3.8M | 0.80% |
| 26 | Amphastar Pharmaceuticals, Inc | AMPH | 134,000 | $3.8M | 0.80% |
| 27 | Fabrinet | FN | 28,515 | $3.7M | 0.78% |
| 28 | MGP Ingredients, Inc. | MGPI | 33,501 | $3.6M | 0.76% |
| 29 | Synaptics, Inc. | SYNA | 36,410 | $3.5M | 0.74% |
| 30 | Allegro MicroSystems, Inc. | ALGM | 115,200 | $3.5M | 0.74% |
| 31 | Titan Int'l Inc. | KMCM | 225,200 | $3.5M | 0.73% |
| 32 | Inmode Ltd. | INMD | 93,950 | $3.4M | 0.71% |
| 33 | Everi Hldgs, Inc. | EVEX-WT | 224,800 | $3.2M | 0.69% |
| 34 | Dada Nexus Limited | 23344D108 | 457,672 | $3.2M | 0.68% |
| 35 | SeaWorld Entertainment Inc. | SE | 57,200 | $3.1M | 0.65% |
| 36 | Cabot Corp. | CBT | 44,747 | $3.0M | 0.64% |
| 37 | Visteon Corp. | VC | 22,400 | $2.9M | 0.62% |
| 38 | Pinduoduo Inc. | PDD | 35,000 | $2.9M | 0.61% |
| 39 | Extreme Networks, Inc. | EXTR | 150,100 | $2.7M | 0.58% |
| 40 | Federal Signal Corp. | FSS | 57,100 | $2.7M | 0.56% |
| 41 | Sterling Construction Co., Inc | STRL | 80,600 | $2.6M | 0.56% |
| 42 | RPC, Inc. | RES | 292,900 | $2.6M | 0.55% |
| 43 | Aviat Networks, Inc. | AVNW | 83,307 | $2.6M | 0.55% |
| 44 | Calix, Inc. | CALX | 37,900 | $2.6M | 0.55% |
| 45 | Merit Medical System Inc | 589889104 | 35,600 | $2.5M | 0.53% |
| 46 | OneSpan, Inc. | OSPN | 216,900 | $2.4M | 0.52% |
| 47 | Macom Technology Solutions | 55405Y100 | 38,400 | $2.4M | 0.51% |
| 48 | PDC Energy, Inc. | 69327R101 | 37,705 | $2.4M | 0.51% |
| 49 | SP Plus Corporation | 78469C103 | 67,600 | $2.3M | 0.50% |
| 50 | Tactile Sys Technology, Inc. | 87357P100 | 204,200 | $2.3M | 0.50% |
| 51 | Patterson-Uti Energy, Inc. | PTEN | 139,100 | $2.3M | 0.50% |
| 52 | Destination XL Group, Inc. | DXLG | 338,100 | $2.3M | 0.49% |
| 53 | H&E Equipment Services, Inc. | 404030108 | 50,100 | $2.3M | 0.48% |
| 54 | Preferred Bank | 740367404 | 30,200 | $2.3M | 0.48% |
| 55 | Ultra Clean Holdings | UCTT | 67,900 | $2.3M | 0.48% |
| 56 | The Chefs Warehouse, Inc. | 163086101 | 66,900 | $2.2M | 0.47% |
| 57 | SunOpta, Inc. | STKL | 262,600 | $2.2M | 0.47% |
| 58 | Veracyte, Inc. | VCYT | 92,400 | $2.2M | 0.47% |
| 59 | Adtran, Inc. | ADTN | 116,400 | $2.2M | 0.46% |
| 60 | A10 Networks, Inc. | ATEN | 131,200 | $2.2M | 0.46% |
| 61 | Franklin Covey Co. | FC | 46,300 | $2.2M | 0.46% |
| 62 | EZCorp, Inc. | EZPW | 262,000 | $2.1M | 0.45% |
| 63 | Inter Parfums | INTR | 22,100 | $2.1M | 0.45% |
| 64 | CECO Environmental Corp. | CECO | 182,100 | $2.1M | 0.45% |
| 65 | Franklin Electric | FELE | 26,600 | $2.1M | 0.45% |
| 66 | EnPro Industries, Inc. | NPO | 19,300 | $2.1M | 0.45% |
| 67 | Applied Industrial | AIT | 16,600 | $2.1M | 0.44% |
| 68 | ADMA Biologics, Inc. | ADMA | 536,900 | $2.1M | 0.44% |
| 69 | V2X, Inc. | VVX | 50,100 | $2.1M | 0.44% |
| 70 | Cross Country Healthcare, Inc. | 227483104 | 77,700 | $2.1M | 0.44% |
| 71 | ABM Industries, Inc. | 000957100 | 44,500 | $2.0M | 0.42% |
| 72 | Option Care Health Inc. | OPCH | 65,500 | $2.0M | 0.42% |
| 73 | Photronics, Inc. | PLAB | 116,800 | $2.0M | 0.42% |
| 74 | Comstock Res | LODE | 142,800 | $2.0M | 0.42% |
| 75 | Dynavax Technologies Corp. | 268158201 | 183,700 | $2.0M | 0.42% |
| 76 | Quaker Chemical Corporation | 747316107 | 11,600 | $1.9M | 0.41% |
| 77 | Fox Factory Hldg Corp. | FOXF | 21,100 | $1.9M | 0.41% |
| 78 | Playa Hotels & Resorts N.V. | N70544106 | 284,100 | $1.9M | 0.39% |
| 79 | Earthstone Energy Inc. | 27032D304 | 128,800 | $1.8M | 0.39% |
| 80 | Guess, Inc | 401617105 | 88,080 | $1.8M | 0.39% |
| 81 | Catalyst Pharmaceuticals, Inc. | CPRX | 96,600 | $1.8M | 0.38% |
| 82 | Boot Barn Hldgs, Inc. | BOOT | 27,900 | $1.7M | 0.37% |
| 83 | Matador Resources Company | MTDR | 30,300 | $1.7M | 0.37% |
| 84 | Univar Solutions, Inc. | 91336L107 | 54,300 | $1.7M | 0.37% |
| 85 | Brookline Bancorp, Inc. | 11373M107 | 121,700 | $1.7M | 0.37% |
| 86 | Modine Mfg Co Com | 607828100 | 86,500 | $1.7M | 0.37% |
| 87 | O-I Glass, Inc. | OI | 103,400 | $1.7M | 0.36% |
| 88 | ATI, Inc. | ATI | 57,200 | $1.7M | 0.36% |
| 89 | Heritage Financial Corporation | 42722X106 | 55,400 | $1.7M | 0.36% |
| 90 | NerdWallet, Inc. | NRDS | 175,900 | $1.7M | 0.36% |
| 91 | NOV, Inc. | NOV | 80,800 | $1.7M | 0.36% |
| 92 | Vishay Precision Group | VPG | 43,600 | $1.7M | 0.36% |
| 93 | Mercantile Bank Corp. | 587376104 | 49,819 | $1.7M | 0.35% |
| 94 | Full House Resorts, Inc. | 359678109 | 221,743 | $1.7M | 0.35% |
| 95 | Employers Holdings, Inc. | EIG | 38,500 | $1.7M | 0.35% |
| 96 | Topgolf Callaway Brands Corp. | 131193104 | 83,800 | $1.7M | 0.35% |
| 97 | Oxford Inds, Inc. | 691497309 | 17,500 | $1.6M | 0.35% |
| 98 | Allied Motion Technologies | ALNT | 46,400 | $1.6M | 0.34% |
| 99 | Silicon Laboratories, Inc. | SLAB | 11,650 | $1.6M | 0.34% |
| 100 | Clearwater Paper Corp | CLW | 41,800 | $1.6M | 0.34% |
| 101 | Magnolia Oil & Gas Corp. | MGY | 67,100 | $1.6M | 0.33% |
| 102 | Titan Machinery, Inc. | KMCM | 39,600 | $1.6M | 0.33% |
| 103 | AMN Healthcare Svcs | 001744101 | 15,200 | $1.6M | 0.33% |
| 104 | NV5 Global, Inc | 62945V109 | 11,800 | $1.6M | 0.33% |
| 105 | Insperity, Inc. | NSP | 13,700 | $1.6M | 0.33% |
| 106 | FirstCash Holdings, Inc | FCFS | 17,900 | $1.6M | 0.33% |
| 107 | Haemonetics Corp. | HAE | 19,700 | $1.5M | 0.33% |
| 108 | International Money Express, I | INTR | 63,500 | $1.5M | 0.33% |
| 109 | Monarch Casino & Resort, Inc. | MCRI | 20,100 | $1.5M | 0.33% |
| 110 | Haynes Intl, Inc. | 420877201 | 33,500 | $1.5M | 0.33% |
| 111 | Washington Federal, Inc. | WAFDP | 43,200 | $1.4M | 0.31% |
| 112 | Tencent Music Entertainment | XHLD | 175,000 | $1.4M | 0.31% |
| 113 | Nine Energy Service, Inc. | NINE | 99,100 | $1.4M | 0.31% |
| 114 | MRC Global, Inc. | 55345K103 | 119,900 | $1.4M | 0.30% |
| 115 | Avid Technology, Inc. | 05367P100 | 52,200 | $1.4M | 0.30% |
| 116 | M/I Homes, Inc. | MHO | 30,000 | $1.4M | 0.29% |
| 117 | Scansource, Inc. | SCSC | 46,800 | $1.4M | 0.29% |
| 118 | SPDR S&P 500 ETF Trust | SPY | 3,574 | $1.4M | 0.29% |
| 119 | Liberty Energy, Inc. | LBRT | 84,100 | $1.3M | 0.29% |
| 120 | Harmonic, Inc. | HLIT | 99,800 | $1.3M | 0.28% |
| 121 | Camtek, Ltd. | CAMT | 59,180 | $1.3M | 0.28% |
| 122 | Viad Corp. | 92552R406 | 51,100 | $1.2M | 0.26% |
| 123 | Janus International Group, Inc | JBI | 130,300 | $1.2M | 0.26% |
| 124 | Alta Equipment Group, Inc. | ALTG-PA | 93,600 | $1.2M | 0.26% |
| 125 | VSE Corp. | VSECU | 26,100 | $1.2M | 0.26% |
| 126 | UNUM Group | UNMA | 29,000 | $1.2M | 0.25% |
| 127 | MP Materials Corp. | MP | 48,000 | $1.2M | 0.25% |
| 128 | UFP Industries, Inc. | UFPI | 14,700 | $1.2M | 0.25% |
| 129 | ShockWave Medical, Inc. | 82489T104 | 5,150 | $1.1M | 0.23% |
| 130 | First Merchants Corporation | FRMEP | 25,300 | $1.0M | 0.22% |
| 131 | Cerus Corp. | CERS | 283,900 | $1.0M | 0.22% |
| 132 | Forward Air Corp. | FWRD | 9,800 | $1.0M | 0.22% |
| 133 | LeMaitre Vascular, Inc. | LMAT | 21,600 | $994,032 | 0.21% |
| 134 | Inspire Medical Systems, Inc. | 457730109 | 3,850 | $969,738 | 0.21% |
| 135 | MINISO Group Holding Limited | MSOGF | 90,000 | $965,700 | 0.21% |
| 136 | KVH Industries, Inc. | 482738101 | 88,000 | $899,360 | 0.19% |
| 137 | Amtech Systems, Inc. | ASYS | 113,900 | $865,640 | 0.18% |
| 138 | Texas Roadhouse | TXRH | 9,500 | $864,025 | 0.18% |
| 139 | Pdf Solutions, Inc. | PDFS | 30,100 | $858,452 | 0.18% |
| 140 | Rocky Brands, Inc. | RCKY | 36,000 | $850,320 | 0.18% |
| 141 | Caleres Inc. | CAL | 37,600 | $837,728 | 0.18% |
| 142 | OOMA Inc. | OOMA | 61,000 | $830,820 | 0.18% |
| 143 | Futu Holdings Ltd. | FUTU | 20,000 | $813,000 | 0.17% |
| 144 | Murphy USA, Inc. | MUSA | 2,900 | $810,666 | 0.17% |
| 145 | Microsoft Corp. | MSFT | 3,055 | $732,650 | 0.16% |
| 146 | Apple, Inc. | AAPL | 5,479 | $711,835 | 0.15% |
| 147 | Tal Education Group ADR | TAL | 95,000 | $669,750 | 0.14% |
| 148 | Novanta, Inc. | NOVTU | 4,900 | $665,763 | 0.14% |
| 149 | Yum China Hldgs, Inc. | YUMC | 10,500 | $573,825 | 0.12% |
| 150 | JP Morgan Chase & Company Inc. | VYLD | 4,089 | $548,349 | 0.12% |
| 151 | Johnson & Johnson | JNJ | 2,705 | $477,883 | 0.10% |
| 152 | The Travelers Co., Inc. | TRV | 2,227 | $417,464 | 0.09% |
| 153 | Amgen, Inc. | AMGN | 1,381 | $362,660 | 0.08% |
| 154 | Mastercard, Inc. | MA | 965 | $335,502 | 0.07% |
| 155 | RF Industries Ltd. | 749552105 | 63,100 | $324,334 | 0.07% |
| 156 | Resmed Inc. | RSMDF | 1,450 | $301,789 | 0.06% |
| 157 | Newmont Mining | NEMCL | 5,888 | $277,924 | 0.06% |
| 158 | AFYA Ltd. | AFYA | 17,000 | $265,540 | 0.06% |
| 159 | Eli Lilly & Company | LLY | 639 | $233,649 | 0.05% |
| 160 | Wal Mart Stores Inc. | WMT | 1,585 | $224,807 | 0.05% |
| 161 | McDonald's Corporation | MCD | 838 | $220,935 | 0.05% |
| 162 | Controladora Vuela Comp de Avi | 21240E105 | 14,000 | $117,040 | 0.02% |
| 163 | Despegar Com Corp. | G27358103 | 11,600 | $59,508 | 0.01% |
| 164 | Xenacare Hldgs, Inc. | 98401A106 | 140,000 | $0 | 0.00% |
| 165 | American Power Corp | 02906T107 | 10,000 | $0 | 0.00% |
| 166 | Titan Oil & Gas, Inc. | KMCM | 10,000 | $0 | 0.00% |
| 167 | Avatar Ventures | 05350B100 | 10,000 | $0 | 0.00% |
| 168 | AMR Corp Escrow | 001ESC102 | 18,000 | $0 | 0.00% |