13F HOLDINGS REPORT
OBERWEIS ASSET MANAGEMENT INC/
Quarter ended Q3 2023 · Filed August 14, 2023 · Accession 0001213900-23-066668
Total Value
$822.8M
Positions
187
Other Managers
0
Confidential Omitted
No
Holdings (187)
| # | Issuer | Ticker / CUSIP | Shares | Value | % of Filing |
|---|---|---|---|---|---|
| 1 | Constellium NV Cl A | CSTM | 2,799,271 | $48.1M | 5.85% |
| 2 | Axcelis Technologies | ACLS | 240,399 | $44.1M | 5.36% |
| 3 | Aehr Test Systems | AEHR | 873,108 | $36.0M | 4.38% |
| 4 | Alphatec Hldgs Inc. | ATEC | 980,470 | $17.6M | 2.14% |
| 5 | Impinj, Inc. | PI | 179,145 | $16.1M | 1.95% |
| 6 | Lantheus Hldgs Inc. | LNTH | 166,180 | $13.9M | 1.69% |
| 7 | Perion Network, Ltd. | PERI | 426,250 | $13.1M | 1.59% |
| 8 | Veracyte, Inc. | VCYT | 482,310 | $12.3M | 1.49% |
| 9 | Deckers Outdoor Corp. | DECK | 23,120 | $12.2M | 1.48% |
| 10 | Crocs, Inc. | CROX | 105,500 | $11.9M | 1.44% |
| 11 | TransMedics Group, Inc. | TMDX | 127,000 | $10.7M | 1.30% |
| 12 | ICF International, Inc. | 44925C103 | 80,200 | $10.0M | 1.21% |
| 13 | Belden, Inc. | BDC | 98,755 | $9.4M | 1.15% |
| 14 | Veritiv Corp. | 923454102 | 72,790 | $9.1M | 1.11% |
| 15 | Allegro MicroSystems, Inc. | ALGM | 196,040 | $8.8M | 1.08% |
| 16 | Extreme Networks, Inc. | EXTR | 337,900 | $8.8M | 1.07% |
| 17 | Amphastar Pharmaceuticals, Inc | AMPH | 147,800 | $8.5M | 1.03% |
| 18 | Clean Harbors, Inc. | CLH | 45,105 | $7.4M | 0.90% |
| 19 | Tactile Sys Technology, Inc. | 87357P100 | 294,950 | $7.4M | 0.89% |
| 20 | Bel Fuse, Inc. | BELFB | 121,500 | $7.0M | 0.85% |
| 21 | Evolent Health, Inc. | EVH | 227,910 | $6.9M | 0.84% |
| 22 | Model N, Inc. | 607525102 | 194,818 | $6.9M | 0.84% |
| 23 | Visteon Corp. | VC | 47,760 | $6.9M | 0.83% |
| 24 | Blue Bird Corporation | BLBD | 301,300 | $6.8M | 0.82% |
| 25 | Navitas Semiconductor Corp. | NVTS | 640,000 | $6.7M | 0.82% |
| 26 | Ultra Clean Holdings | UCTT | 170,900 | $6.6M | 0.80% |
| 27 | Power Integrations | POWI | 69,270 | $6.6M | 0.80% |
| 28 | Merit Medical System Inc | 589889104 | 78,160 | $6.5M | 0.79% |
| 29 | Treace Medical Concepts, Inc. | 89455T109 | 251,500 | $6.4M | 0.78% |
| 30 | Axonics, Inc. | 05465P101 | 125,440 | $6.3M | 0.77% |
| 31 | OneSpan, Inc. | OSPN | 416,845 | $6.2M | 0.75% |
| 32 | ADMA Biologics, Inc. | ADMA | 1,668,700 | $6.2M | 0.75% |
| 33 | Vertiv Holdings Co. | VRT | 248,340 | $6.2M | 0.75% |
| 34 | Sterling Construction Co., Inc | STRL | 106,700 | $6.0M | 0.72% |
| 35 | SI-BONE, Inc. | SIBN | 220,200 | $5.9M | 0.72% |
| 36 | SeaWorld Entertainment Inc. | SE | 99,600 | $5.6M | 0.68% |
| 37 | CIRCOR International, Inc. | 17273K109 | 95,000 | $5.4M | 0.65% |
| 38 | Playa Hotels & Resorts N.V. | N70544106 | 655,300 | $5.3M | 0.65% |
| 39 | Encompass Health Corporation | EHC | 78,100 | $5.3M | 0.64% |
| 40 | Camtek, Ltd. | CAMT | 148,202 | $5.3M | 0.64% |
| 41 | CECO Environmental Corp. | CECO | 392,600 | $5.2M | 0.64% |
| 42 | Weatherford International PLC | G48833118 | 78,580 | $5.2M | 0.63% |
| 43 | Veeco Instruments, Inc. | 922417100 | 202,500 | $5.2M | 0.63% |
| 44 | Inmode Ltd. | INMD | 137,100 | $5.1M | 0.62% |
| 45 | The Chefs Warehouse, Inc. | 163086101 | 141,500 | $5.1M | 0.61% |
| 46 | Ciena Corporation | CIEN | 118,305 | $5.0M | 0.61% |
| 47 | Photronics, Inc. | PLAB | 194,700 | $5.0M | 0.61% |
| 48 | Formfactor Inc. | FORM | 143,000 | $4.9M | 0.59% |
| 49 | V2X, Inc. | VVX | 97,800 | $4.8M | 0.59% |
| 50 | Sun Country Airlines Holdings, | 866683105 | 213,200 | $4.8M | 0.58% |
| 51 | MGP Ingredients, Inc. | MGPI | 44,850 | $4.8M | 0.58% |
| 52 | Harmonic, Inc. | HLIT | 294,300 | $4.8M | 0.58% |
| 53 | Digi International I | 253798102 | 120,600 | $4.8M | 0.58% |
| 54 | Federal Signal Corp. | FSS | 73,900 | $4.7M | 0.58% |
| 55 | ATI, Inc. | ATI | 106,800 | $4.7M | 0.57% |
| 56 | RPC, Inc. | RES | 657,033 | $4.7M | 0.57% |
| 57 | Magnite, Inc. | MGNI | 340,700 | $4.7M | 0.57% |
| 58 | Hexcel Corporation | 428291108 | 59,000 | $4.5M | 0.55% |
| 59 | SP Plus Corporation | 78469C103 | 113,700 | $4.4M | 0.54% |
| 60 | Flowserve Corporation | FLS | 119,200 | $4.4M | 0.54% |
| 61 | Littelfuse, Inc. | LFUS | 15,200 | $4.4M | 0.54% |
| 62 | Woodward, Inc. | WWD | 37,100 | $4.4M | 0.54% |
| 63 | Weave Communications, Inc. | WEAV | 394,500 | $4.4M | 0.53% |
| 64 | Granite Construction | GVA | 110,100 | $4.4M | 0.53% |
| 65 | Allison Transmission Holdings, | ALSN | 77,400 | $4.4M | 0.53% |
| 66 | Parsons Corp. | PSN | 90,400 | $4.4M | 0.53% |
| 67 | EZCorp, Inc. | EZPW | 506,200 | $4.2M | 0.52% |
| 68 | Franklin Electric | FELE | 40,900 | $4.2M | 0.51% |
| 69 | Cabot Corp. | CBT | 62,405 | $4.2M | 0.51% |
| 70 | Cadence Design System, Inc. | CDNS | 17,600 | $4.1M | 0.50% |
| 71 | Inter Parfums | INTR | 30,400 | $4.1M | 0.50% |
| 72 | Acadia Healthcare Co., Inc. | ACHC | 51,400 | $4.1M | 0.50% |
| 73 | Quaker Chemical Corporation | 747316107 | 20,800 | $4.1M | 0.49% |
| 74 | Zeta Global Holdings Corp. | ZETA | 474,500 | $4.1M | 0.49% |
| 75 | Haemonetics Corp. | HAE | 47,500 | $4.0M | 0.49% |
| 76 | Maximus, Inc. | MMS | 47,800 | $4.0M | 0.49% |
| 77 | Silicon Laboratories, Inc. | SLAB | 25,510 | $4.0M | 0.49% |
| 78 | Allegiant Travel Co. | ALGT | 30,400 | $3.8M | 0.47% |
| 79 | Modine Mfg Co Com | 607828100 | 115,000 | $3.8M | 0.46% |
| 80 | H&E Equipment Services, Inc. | 404030108 | 82,100 | $3.8M | 0.46% |
| 81 | Frontdoor, Inc. | FTDR | 117,700 | $3.8M | 0.46% |
| 82 | FirstCash Holdings, Inc | FCFS | 40,100 | $3.7M | 0.45% |
| 83 | ACM Research, Inc. Class A | 00108J109 | 285,600 | $3.7M | 0.45% |
| 84 | Haynes Intl, Inc. | 420877201 | 72,600 | $3.7M | 0.45% |
| 85 | Aviat Networks, Inc. | AVNW | 109,507 | $3.7M | 0.44% |
| 86 | Macom Technology Solutions | 55405Y100 | 55,700 | $3.7M | 0.44% |
| 87 | Artivion, Inc | AORT | 211,300 | $3.6M | 0.44% |
| 88 | Option Care Health Inc. | OPCH | 111,000 | $3.6M | 0.44% |
| 89 | SunOpta, Inc. | STKL | 537,700 | $3.6M | 0.44% |
| 90 | O-I Glass, Inc. | OI | 168,100 | $3.6M | 0.44% |
| 91 | Shoals Technology Group, Inc. | SHLS | 139,600 | $3.6M | 0.43% |
| 92 | LSI Industries Inc. | 50216C108 | 283,700 | $3.6M | 0.43% |
| 93 | Employers Holdings, Inc. | EIG | 95,100 | $3.6M | 0.43% |
| 94 | JELD-WEN Holding, Inc. | JELD | 201,900 | $3.5M | 0.43% |
| 95 | Applied Industrial | AIT | 24,400 | $3.5M | 0.43% |
| 96 | SPX Technologies, Inc. | SPXC | 41,500 | $3.5M | 0.43% |
| 97 | M/I Homes, Inc. | MHO | 40,400 | $3.5M | 0.43% |
| 98 | NeoGenomics, Inc. | NEO | 213,000 | $3.4M | 0.42% |
| 99 | Alight, Inc. | ALIT | 361,300 | $3.3M | 0.41% |
| 100 | Everi Hldgs, Inc. | EVEX-WT | 229,200 | $3.3M | 0.40% |
| 101 | Super Micro Computer Inc. | SMCI | 13,100 | $3.3M | 0.40% |
| 102 | Boot Barn Hldgs, Inc. | BOOT | 37,800 | $3.2M | 0.39% |
| 103 | Earthstone Energy Inc. | 27032D304 | 223,000 | $3.2M | 0.39% |
| 104 | Monarch Casino & Resort, Inc. | MCRI | 45,200 | $3.2M | 0.39% |
| 105 | Dynavax Technologies Corp. | 268158201 | 245,400 | $3.2M | 0.39% |
| 106 | Preferred Bank | 740367404 | 57,000 | $3.1M | 0.38% |
| 107 | A10 Networks, Inc. | ATEN | 208,600 | $3.0M | 0.37% |
| 108 | UNUM Group | UNMA | 62,600 | $3.0M | 0.36% |
| 109 | New Relic, Inc. | 64829B100 | 45,300 | $3.0M | 0.36% |
| 110 | ABM Industries, Inc. | 000957100 | 68,500 | $2.9M | 0.36% |
| 111 | International Seaways, Inc. | INSW | 74,800 | $2.9M | 0.35% |
| 112 | PDC Energy, Inc. | 69327R101 | 39,604 | $2.8M | 0.34% |
| 113 | Oxford Inds, Inc. | 691497309 | 27,600 | $2.7M | 0.33% |
| 114 | Patterson-Uti Energy, Inc. | PTEN | 226,500 | $2.7M | 0.33% |
| 115 | International Money Express, I | INTR | 108,300 | $2.7M | 0.32% |
| 116 | VSE Corp. | VSECU | 47,700 | $2.6M | 0.32% |
| 117 | ShockWave Medical, Inc. | 82489T104 | 9,050 | $2.6M | 0.31% |
| 118 | Alteryx, Inc. Com Cl A | 02156B103 | 56,350 | $2.6M | 0.31% |
| 119 | Inspire Medical Systems, Inc. | 457730109 | 7,650 | $2.5M | 0.30% |
| 120 | Catalyst Pharmaceuticals, Inc. | CPRX | 183,400 | $2.5M | 0.30% |
| 121 | Pdf Solutions, Inc. | PDFS | 54,500 | $2.5M | 0.30% |
| 122 | Janus International Group, Inc | JBI | 224,700 | $2.4M | 0.29% |
| 123 | Comstock Res | LODE | 206,463 | $2.4M | 0.29% |
| 124 | Allied Motion Technologies | ALNT | 56,600 | $2.3M | 0.27% |
| 125 | MRC Global, Inc. | 55345K103 | 223,400 | $2.2M | 0.27% |
| 126 | Insperity, Inc. | NSP | 18,000 | $2.1M | 0.26% |
| 127 | LeMaitre Vascular, Inc. | LMAT | 31,600 | $2.1M | 0.26% |
| 128 | Napco Sec Technologies, Inc. | 630402105 | 59,300 | $2.1M | 0.25% |
| 129 | Heritage Financial Corporation | 42722X106 | 126,500 | $2.0M | 0.25% |
| 130 | Destination XL Group, Inc. | DXLG | 415,700 | $2.0M | 0.25% |
| 131 | Vishay Precision Group | VPG | 54,500 | $2.0M | 0.25% |
| 132 | Matador Resources Company | MTDR | 38,300 | $2.0M | 0.24% |
| 133 | Novanta, Inc. | NOVTU | 10,600 | $2.0M | 0.24% |
| 134 | Alta Equipment Group, Inc. | ALTG-PA | 110,100 | $1.9M | 0.23% |
| 135 | Texas Roadhouse | TXRH | 16,700 | $1.9M | 0.23% |
| 136 | Amylyx Pharmaceuticals, Inc. | AMLX | 85,000 | $1.8M | 0.22% |
| 137 | NerdWallet, Inc. | NRDS | 187,700 | $1.8M | 0.21% |
| 138 | Simpson Manufacturing | 829073105 | 12,600 | $1.7M | 0.21% |
| 139 | Mercantile Bank Corp. | 587376104 | 62,789 | $1.7M | 0.21% |
| 140 | Comfort Systems USA Inc. | 199908104 | 10,500 | $1.7M | 0.21% |
| 141 | Scansource, Inc. | SCSC | 58,200 | $1.7M | 0.21% |
| 142 | MINISO Group Holding Limited | MSOGF | 96,800 | $1.6M | 0.20% |
| 143 | Magnolia Oil & Gas Corp. | MGY | 77,400 | $1.6M | 0.20% |
| 144 | Caleres Inc. | CAL | 66,900 | $1.6M | 0.19% |
| 145 | SPDR S&P 500 ETF Trust | SPY | 3,597 | $1.6M | 0.19% |
| 146 | Brookline Bancorp, Inc. | 11373M107 | 180,000 | $1.6M | 0.19% |
| 147 | First Merchants Corporation | FRMEP | 54,800 | $1.5M | 0.19% |
| 148 | Washington Federal, Inc. | WAFDP | 58,200 | $1.5M | 0.19% |
| 149 | Wingstop, Inc. | WING | 7,600 | $1.5M | 0.18% |
| 150 | NOV, Inc. | NOV | 94,500 | $1.5M | 0.18% |
| 151 | Full House Resorts, Inc. | 359678109 | 223,143 | $1.5M | 0.18% |
| 152 | Murphy USA, Inc. | MUSA | 4,800 | $1.5M | 0.18% |
| 153 | Liberty Energy, Inc. | LBRT | 109,900 | $1.5M | 0.18% |
| 154 | Li Auto, Inc. ADR | LAAOF | 33,000 | $1.2M | 0.14% |
| 155 | Amtech Systems, Inc. | ASYS | 118,900 | $1.1M | 0.14% |
| 156 | PDD Holdings Inc. | PDD | 16,000 | $1.1M | 0.13% |
| 157 | Taiwan Semiconductor | 874039100 | 10,500 | $1.1M | 0.13% |
| 158 | Apple, Inc. | AAPL | 5,450 | $1.1M | 0.13% |
| 159 | Microsoft Corp. | MSFT | 3,055 | $1.0M | 0.13% |
| 160 | Maxlinear, Inc. Class A | MXL | 31,505 | $994,298 | 0.12% |
| 161 | Tencent Music Entertainment | XHLD | 125,000 | $922,500 | 0.11% |
| 162 | Nine Energy Service, Inc. | NINE | 235,800 | $903,114 | 0.11% |
| 163 | KVH Industries, Inc. | 482738101 | 91,000 | $831,740 | 0.10% |
| 164 | Legend Biotech Corp. | LEGN | 12,000 | $828,360 | 0.10% |
| 165 | CVD Equipment Corp. | CVV | 103,000 | $759,110 | 0.09% |
| 166 | JP Morgan Chase & Company Inc. | VYLD | 4,095 | $595,518 | 0.07% |
| 167 | Johnson & Johnson | JNJ | 2,711 | $448,676 | 0.05% |
| 168 | The Travelers Co., Inc. | TRV | 2,271 | $394,446 | 0.05% |
| 169 | Mastercard, Inc. | MA | 945 | $371,727 | 0.05% |
| 170 | Resmed Inc. | RSMDF | 1,450 | $316,825 | 0.04% |
| 171 | Amgen, Inc. | AMGN | 1,383 | $306,992 | 0.04% |
| 172 | Eli Lilly & Company | LLY | 609 | $285,643 | 0.03% |
| 173 | RF Industries Ltd. | 749552105 | 63,100 | $261,865 | 0.03% |
| 174 | Amazon.com | AMZN | 2,000 | $260,720 | 0.03% |
| 175 | McDonald's Corporation | MCD | 841 | $250,850 | 0.03% |
| 176 | Wal Mart Stores Inc. | WMT | 1,589 | $249,690 | 0.03% |
| 177 | Arcos Dorados Holdings, Inc. | ARCO | 23,200 | $237,800 | 0.03% |
| 178 | Grupo Aeroportuario del Centro | 400501102 | 2,700 | $229,068 | 0.03% |
| 179 | Newmont Mining | NEMCL | 5,126 | $218,660 | 0.03% |
| 180 | Pepsico, Inc. | PEP | 1,095 | $202,816 | 0.02% |
| 181 | Controladora Vuela Comp de Avi | 21240E105 | 12,000 | $167,400 | 0.02% |
| 182 | Dada Nexus Limited | 23344D108 | 22,800 | $121,068 | 0.01% |
| 183 | Xenacare Hldgs, Inc. | 98401A106 | 140,000 | $0 | 0.00% |
| 184 | American Power Corp | 02906T107 | 10,000 | $0 | 0.00% |
| 185 | Avatar Ventures | 05350B100 | 10,000 | $0 | 0.00% |
| 186 | AMR Corp Escrow | 001ESC102 | 18,000 | $0 | 0.00% |
| 187 | Titan Oil & Gas, Inc. | KMCM | 10,000 | $0 | 0.00% |