13F HOLDINGS REPORT
OBERWEIS ASSET MANAGEMENT INC/
Quarter ended Q4 2023 · Filed November 14, 2023 · Accession 0001213900-23-086509
Total Value
$941.5M
Positions
195
Other Managers
0
Confidential Omitted
No
Holdings (195)
| # | Issuer | Ticker / CUSIP | Shares | Value | % of Filing |
|---|---|---|---|---|---|
| 1 | Constellium NV Cl A | CSTM | 2,933,071 | $53.4M | 5.67% |
| 2 | Aehr Test Systems | AEHR | 910,108 | $41.6M | 4.42% |
| 3 | Axcelis Technologies | ACLS | 193,559 | $31.6M | 3.35% |
| 4 | Weatherford International PLC | G48833118 | 196,920 | $17.8M | 1.89% |
| 5 | Alphatec Hldgs Inc. | ATEC | 1,236,040 | $16.0M | 1.70% |
| 6 | Perion Network, Ltd. | PERI | 470,290 | $14.4M | 1.53% |
| 7 | Vertiv Holdings Co. | VRT | 380,990 | $14.2M | 1.51% |
| 8 | Veracyte, Inc. | VCYT | 597,540 | $13.3M | 1.42% |
| 9 | Deckers Outdoor Corp. | DECK | 25,700 | $13.2M | 1.40% |
| 10 | Lantheus Hldgs Inc. | LNTH | 169,340 | $11.8M | 1.25% |
| 11 | ICF International, Inc. | 44925C103 | 95,700 | $11.6M | 1.23% |
| 12 | Camtek, Ltd. | CAMT | 166,380 | $10.4M | 1.10% |
| 13 | Universal Display Corp. | OLED | 62,015 | $9.7M | 1.03% |
| 14 | Extreme Networks, Inc. | EXTR | 381,470 | $9.2M | 0.98% |
| 15 | Axonics, Inc. | 05465P101 | 161,620 | $9.1M | 0.96% |
| 16 | Belden, Inc. | BDC | 91,480 | $8.8M | 0.94% |
| 17 | Flowserve Corporation | FLS | 210,840 | $8.4M | 0.89% |
| 18 | TransMedics Group, Inc. | TMDX | 151,100 | $8.3M | 0.88% |
| 19 | Sterling Construction Co., Inc | STRL | 110,000 | $8.1M | 0.86% |
| 20 | Visteon Corp. | VC | 57,970 | $8.0M | 0.85% |
| 21 | Aerovironment, Inc. | AVAV | 69,100 | $7.7M | 0.82% |
| 22 | Clean Harbors, Inc. | CLH | 45,415 | $7.6M | 0.81% |
| 23 | Encompass Health Corporation | EHC | 111,600 | $7.5M | 0.80% |
| 24 | ADMA Biologics, Inc. | ADMA | 2,078,400 | $7.4M | 0.79% |
| 25 | Power Integrations | POWI | 94,573 | $7.2M | 0.77% |
| 26 | Allegro MicroSystems, Inc. | ALGM | 225,930 | $7.2M | 0.77% |
| 27 | Parsons Corp. | PSN | 131,300 | $7.1M | 0.76% |
| 28 | Amphastar Pharmaceuticals, Inc | AMPH | 152,500 | $7.0M | 0.74% |
| 29 | Evolent Health, Inc. | EVH | 255,460 | $7.0M | 0.74% |
| 30 | Crocs, Inc. | CROX | 78,730 | $6.9M | 0.74% |
| 31 | Haemonetics Corp. | HAE | 77,400 | $6.9M | 0.74% |
| 32 | SI-BONE, Inc. | SIBN | 315,100 | $6.7M | 0.71% |
| 33 | CECO Environmental Corp. | CECO | 416,700 | $6.7M | 0.71% |
| 34 | Merit Medical System Inc | 589889104 | 95,660 | $6.6M | 0.70% |
| 35 | Formfactor Inc. | FORM | 188,100 | $6.6M | 0.70% |
| 36 | Blue Bird Corporation | BLBD | 306,500 | $6.5M | 0.70% |
| 37 | Ultra Clean Holdings | UCTT | 218,100 | $6.5M | 0.69% |
| 38 | Veeco Instruments, Inc. | 922417100 | 226,800 | $6.4M | 0.68% |
| 39 | Navitas Semiconductor Corp. | NVTS | 912,500 | $6.3M | 0.67% |
| 40 | RPC, Inc. | RES | 708,576 | $6.3M | 0.67% |
| 41 | FirstCash Holdings, Inc | FCFS | 61,700 | $6.2M | 0.66% |
| 42 | ACM Research, Inc. Class A | 00108J109 | 341,800 | $6.2M | 0.66% |
| 43 | Woodward, Inc. | WWD | 48,800 | $6.1M | 0.64% |
| 44 | Model N, Inc. | 607525102 | 241,430 | $5.9M | 0.63% |
| 45 | HNI Corp. | HNI | 169,700 | $5.9M | 0.62% |
| 46 | Primoris Services Corp. | 74164F103 | 178,600 | $5.8M | 0.62% |
| 47 | Huron Consulting Group, Inc. | HURN | 55,900 | $5.8M | 0.62% |
| 48 | V2X, Inc. | VVX | 112,500 | $5.8M | 0.62% |
| 49 | Bel Fuse, Inc. | BELFB | 121,500 | $5.8M | 0.62% |
| 50 | Dynavax Technologies Corp. | 268158201 | 385,200 | $5.7M | 0.60% |
| 51 | MGP Ingredients, Inc. | MGPI | 53,650 | $5.7M | 0.60% |
| 52 | Zeta Global Holdings Corp. | ZETA | 674,700 | $5.6M | 0.60% |
| 53 | Inter Parfums | INTR | 41,600 | $5.6M | 0.59% |
| 54 | Allison Transmission Holdings, | ALSN | 94,100 | $5.6M | 0.59% |
| 55 | SPX Technologies, Inc. | SPXC | 68,000 | $5.5M | 0.59% |
| 56 | SeaWorld Entertainment Inc. | SE | 119,280 | $5.5M | 0.59% |
| 57 | Inmode Ltd. | INMD | 180,260 | $5.5M | 0.58% |
| 58 | Acadia Healthcare Co., Inc. | ACHC | 77,800 | $5.5M | 0.58% |
| 59 | Federal Signal Corp. | FSS | 91,400 | $5.5M | 0.58% |
| 60 | CIRCOR International, Inc. | 17273K109 | 97,900 | $5.5M | 0.58% |
| 61 | Option Care Health Inc. | OPCH | 167,800 | $5.4M | 0.58% |
| 62 | Onto Innovation, Inc. | ONTO | 41,100 | $5.2M | 0.56% |
| 63 | Oshkosh Corp. | OSK | 54,136 | $5.2M | 0.55% |
| 64 | Preferred Bank | 740367404 | 82,600 | $5.1M | 0.55% |
| 65 | Applied Optoelectronics Inc. | AAOI | 468,415 | $5.1M | 0.55% |
| 66 | Playa Hotels & Resorts N.V. | N70544106 | 701,500 | $5.1M | 0.54% |
| 67 | Frontdoor, Inc. | FTDR | 164,700 | $5.0M | 0.54% |
| 68 | Boot Barn Hldgs, Inc. | BOOT | 60,800 | $4.9M | 0.52% |
| 69 | EZCorp, Inc. | EZPW | 595,300 | $4.9M | 0.52% |
| 70 | Earthstone Energy Inc. | 27032D304 | 240,600 | $4.9M | 0.52% |
| 71 | Hexcel Corporation | 428291108 | 73,300 | $4.8M | 0.51% |
| 72 | LSI Industries Inc. | 50216C108 | 298,700 | $4.7M | 0.50% |
| 73 | Applied Industrial | AIT | 30,500 | $4.7M | 0.50% |
| 74 | Treace Medical Concepts, Inc. | 89455T109 | 355,600 | $4.7M | 0.50% |
| 75 | Photronics, Inc. | PLAB | 230,100 | $4.7M | 0.49% |
| 76 | Tactile Sys Technology, Inc. | 87357P100 | 330,350 | $4.6M | 0.49% |
| 77 | Employers Holdings, Inc. | EIG | 112,200 | $4.5M | 0.48% |
| 78 | SP Plus Corporation | 78469C103 | 122,500 | $4.4M | 0.47% |
| 79 | Allegiant Travel Co. | ALGT | 56,762 | $4.4M | 0.46% |
| 80 | Granite Construction | GVA | 114,600 | $4.4M | 0.46% |
| 81 | Digi International I | 253798102 | 161,100 | $4.3M | 0.46% |
| 82 | PetlQ Inc | 71639T106 | 219,600 | $4.3M | 0.46% |
| 83 | Super Micro Computer Inc. | SMCI | 15,700 | $4.3M | 0.46% |
| 84 | Weave Communications, Inc. | WEAV | 523,600 | $4.3M | 0.45% |
| 85 | DMC Global, Inc. | BOOM | 174,100 | $4.3M | 0.45% |
| 86 | Sun Country Airlines Holdings, | 866683105 | 283,000 | $4.2M | 0.45% |
| 87 | Abercrombie & Fitch Co. | ANF | 73,500 | $4.1M | 0.44% |
| 88 | Maximus, Inc. | MMS | 55,200 | $4.1M | 0.44% |
| 89 | Quaker Chemical Corporation | 747316107 | 25,500 | $4.1M | 0.43% |
| 90 | Janus International Group, Inc | JBI | 378,600 | $4.1M | 0.43% |
| 91 | Cadence Design System, Inc. | CDNS | 17,200 | $4.0M | 0.43% |
| 92 | H&E Equipment Services, Inc. | 404030108 | 92,200 | $4.0M | 0.42% |
| 93 | Aviat Networks, Inc. | AVNW | 125,307 | $3.9M | 0.42% |
| 94 | ATI, Inc. | ATI | 95,000 | $3.9M | 0.42% |
| 95 | Nextracker, Inc. | NXT | 97,300 | $3.9M | 0.42% |
| 96 | International Seaways, Inc. | INSW | 86,500 | $3.9M | 0.41% |
| 97 | Modine Mfg Co Com | 607828100 | 84,600 | $3.9M | 0.41% |
| 98 | UNUM Group | UNMA | 76,700 | $3.8M | 0.40% |
| 99 | Artivion, Inc | AORT | 248,200 | $3.8M | 0.40% |
| 100 | Helix Energy Solutions Group, | 42330P107 | 335,600 | $3.7M | 0.40% |
| 101 | M/I Homes, Inc. | MHO | 44,300 | $3.7M | 0.40% |
| 102 | Fabrinet | FN | 22,200 | $3.7M | 0.39% |
| 103 | Clearwater Paper Corp | CLW | 101,000 | $3.7M | 0.39% |
| 104 | Patterson-Uti Energy, Inc. | PTEN | 261,700 | $3.6M | 0.38% |
| 105 | NeoGenomics, Inc. | NEO | 293,400 | $3.6M | 0.38% |
| 106 | G-III Apparel Group Ltd. | GIII | 144,000 | $3.6M | 0.38% |
| 107 | Haynes Intl, Inc. | 420877201 | 76,100 | $3.5M | 0.38% |
| 108 | Catalyst Pharmaceuticals, Inc. | CPRX | 293,600 | $3.4M | 0.36% |
| 109 | Grocery Outlet Hldg Corp. | GO | 115,900 | $3.3M | 0.36% |
| 110 | Monarch Casino & Resort, Inc. | MCRI | 53,800 | $3.3M | 0.35% |
| 111 | Ciena Corporation | CIEN | 70,200 | $3.3M | 0.35% |
| 112 | JELD-WEN Holding, Inc. | JELD | 247,400 | $3.3M | 0.35% |
| 113 | Mannkind Corp. | MNKD | 798,400 | $3.3M | 0.35% |
| 114 | Everi Hldgs, Inc. | EVEX-WT | 249,000 | $3.3M | 0.35% |
| 115 | Fastly, Inc. | FSLY | 170,300 | $3.3M | 0.35% |
| 116 | A10 Networks, Inc. | ATEN | 215,000 | $3.2M | 0.34% |
| 117 | Shoals Technology Group, Inc. | SHLS | 174,300 | $3.2M | 0.34% |
| 118 | Amylyx Pharmaceuticals, Inc. | AMLX | 170,000 | $3.1M | 0.33% |
| 119 | LeMaitre Vascular, Inc. | LMAT | 57,000 | $3.1M | 0.33% |
| 120 | The Chefs Warehouse, Inc. | 163086101 | 146,400 | $3.1M | 0.33% |
| 121 | Osi Systems, Inc. | OSIS | 25,400 | $3.0M | 0.32% |
| 122 | NOV, Inc. | NOV | 141,000 | $2.9M | 0.31% |
| 123 | Primo Water Corp. | 74167P108 | 211,500 | $2.9M | 0.31% |
| 124 | Oxford Inds, Inc. | 691497309 | 30,200 | $2.9M | 0.31% |
| 125 | Scansource, Inc. | SCSC | 95,664 | $2.9M | 0.31% |
| 126 | Matador Resources Company | MTDR | 48,600 | $2.9M | 0.31% |
| 127 | AvePoint, Inc. | AVPT | 425,000 | $2.9M | 0.30% |
| 128 | Comstock Res | LODE | 251,195 | $2.8M | 0.29% |
| 129 | Liberty Energy, Inc. | LBRT | 149,400 | $2.8M | 0.29% |
| 130 | Mercantile Bank Corp. | 587376104 | 85,603 | $2.6M | 0.28% |
| 131 | BJ's Restaurants, Inc. | BJRI | 112,200 | $2.6M | 0.28% |
| 132 | Rover Group, Inc. | 77936F103 | 408,000 | $2.6M | 0.27% |
| 133 | Wingstop, Inc. | WING | 14,200 | $2.6M | 0.27% |
| 134 | Qualys, Inc. | QLYS | 16,600 | $2.5M | 0.27% |
| 135 | PDD Holdings Inc. | PDD | 25,000 | $2.5M | 0.26% |
| 136 | Caleres Inc. | CAL | 84,000 | $2.4M | 0.26% |
| 137 | Gibraltar Inds | 374689107 | 35,700 | $2.4M | 0.26% |
| 138 | VSE Corp. | VSECU | 47,700 | $2.4M | 0.26% |
| 139 | e.l.f. Beauty, Inc. | ELF | 21,800 | $2.4M | 0.25% |
| 140 | Comfort Systems USA Inc. | 199908104 | 14,000 | $2.4M | 0.25% |
| 141 | 1st Source Corp. | SRCE | 55,900 | $2.4M | 0.25% |
| 142 | MINISO Group Holding Limited | MSOGF | 90,400 | $2.3M | 0.25% |
| 143 | Array Biopharma | ARRY | 104,000 | $2.3M | 0.25% |
| 144 | Murphy USA, Inc. | MUSA | 6,700 | $2.3M | 0.24% |
| 145 | Magnolia Oil & Gas Corp. | MGY | 99,000 | $2.3M | 0.24% |
| 146 | Quanterix Corp. | QTRX | 83,400 | $2.3M | 0.24% |
| 147 | Heritage Financial Corporation | 42722X106 | 136,000 | $2.2M | 0.24% |
| 148 | Simpson Manufacturing | 829073105 | 14,700 | $2.2M | 0.23% |
| 149 | The Gorman-Rupp Co. | GRC | 65,000 | $2.1M | 0.23% |
| 150 | Pdf Solutions, Inc. | PDFS | 66,000 | $2.1M | 0.23% |
| 151 | McGrath RentCorp | MGRC | 21,100 | $2.1M | 0.22% |
| 152 | Powell Industries Inc. | 739128106 | 25,400 | $2.1M | 0.22% |
| 153 | Hawkins, Inc. | HWKN | 35,600 | $2.1M | 0.22% |
| 154 | Atricure, Inc. | ATRC | 47,300 | $2.1M | 0.22% |
| 155 | Washington Federal, Inc. | WAFDP | 79,700 | $2.0M | 0.22% |
| 156 | First Merchants Corporation | FRMEP | 72,900 | $2.0M | 0.22% |
| 157 | EPlus, Inc. | PLUS | 31,700 | $2.0M | 0.21% |
| 158 | Rapid7, Inc. | RPD | 43,900 | $2.0M | 0.21% |
| 159 | Texas Roadhouse | TXRH | 20,500 | $2.0M | 0.21% |
| 160 | Impinj, Inc. | PI | 35,700 | $2.0M | 0.21% |
| 161 | Halozyme Therapeutics, Inc. | HALO | 50,500 | $1.9M | 0.20% |
| 162 | ANI Pharmaceuticals, Inc. | ANIP | 33,000 | $1.9M | 0.20% |
| 163 | Trex Company, Inc. | TREX | 30,400 | $1.9M | 0.20% |
| 164 | Destination XL Group, Inc. | DXLG | 415,700 | $1.9M | 0.20% |
| 165 | Astec Inds Inc. | 046224101 | 39,400 | $1.9M | 0.20% |
| 166 | Vishay Precision Group | VPG | 54,500 | $1.8M | 0.19% |
| 167 | Upwork, Inc. | UPWK | 143,400 | $1.6M | 0.17% |
| 168 | SPDR S&P 500 ETF Trust | SPY | 3,597 | $1.5M | 0.16% |
| 169 | Li Auto, Inc. ADR | LAAOF | 38,000 | $1.4M | 0.14% |
| 170 | Alta Equipment Group, Inc. | ALTG-PA | 110,100 | $1.3M | 0.14% |
| 171 | Cadre Hldgs, Inc. | CDRE | 47,300 | $1.3M | 0.13% |
| 172 | Legend Biotech Corp. | LEGN | 16,000 | $1.1M | 0.11% |
| 173 | Taiwan Semiconductor | 874039100 | 12,000 | $1.0M | 0.11% |
| 174 | Full House Resorts, Inc. | 359678109 | 223,143 | $952,821 | 0.10% |
| 175 | Amtech Systems, Inc. | ASYS | 118,900 | $906,018 | 0.10% |
| 176 | Microsoft Corp. | MSFT | 2,835 | $895,151 | 0.10% |
| 177 | Apple, Inc. | AAPL | 4,870 | $833,859 | 0.09% |
| 178 | CVD Equipment Corp. | CVV | 103,000 | $684,971 | 0.07% |
| 179 | JP Morgan Chase & Company Inc. | VYLD | 4,004 | $580,666 | 0.06% |
| 180 | Johnson & Johnson | JNJ | 2,533 | $394,581 | 0.04% |
| 181 | The Travelers Co., Inc. | TRV | 2,194 | $358,285 | 0.04% |
| 182 | Amgen, Inc. | AMGN | 1,224 | $328,854 | 0.03% |
| 183 | Mastercard, Inc. | MA | 825 | $326,744 | 0.03% |
| 184 | Grupo Aeroportuario del Centro | 400501102 | 2,700 | $234,657 | 0.02% |
| 185 | McDonald's Corporation | MCD | 842 | $221,746 | 0.02% |
| 186 | Arcos Dorados Holdings, Inc. | ARCO | 23,200 | $219,472 | 0.02% |
| 187 | Amazon.com | AMZN | 1,700 | $216,104 | 0.02% |
| 188 | Wal Mart Stores Inc. | WMT | 1,349 | $215,823 | 0.02% |
| 189 | Resmed Inc. | RSMDF | 1,450 | $214,412 | 0.02% |
| 190 | Dada Nexus Limited | 23344D108 | 22,800 | $101,460 | 0.01% |
| 191 | Avatar Ventures | 05350B100 | 10,000 | $1 | 0.00% |
| 192 | Titan Oil & Gas, Inc. | KMCM | 10,000 | $0 | 0.00% |
| 193 | Xenacare Hldgs, Inc. | 98401A106 | 140,000 | $0 | 0.00% |
| 194 | AMR Corp Escrow | 001ESC102 | 18,000 | $0 | 0.00% |
| 195 | American Power Corp | 02906T107 | 10,000 | $0 | 0.00% |