13F HOLDINGS REPORT
OBERWEIS ASSET MANAGEMENT INC/
Quarter ended Q3 2025 · Filed November 17, 2025 · Accession 0001213900-25-111225
Total Value
$2.61B
Positions
183
Other Managers
0
Confidential Omitted
No
Holdings (183)
| # | Issuer | Ticker / CUSIP | Shares | Value | % of Filing |
|---|---|---|---|---|---|
| 1 | Credo Technology Group | CRDO | 643,948 | $93.8M | 3.59% |
| 2 | Lumentum Hldgs, Inc. | LITE | 328,630 | $53.5M | 2.05% |
| 3 | Rambus, Inc | RMBS | 507,899 | $52.9M | 2.03% |
| 4 | Ambarella, Inc. | AMBA | 611,360 | $50.4M | 1.93% |
| 5 | SharkNinja, Inc. | SN | 482,810 | $49.8M | 1.91% |
| 6 | Applied Optoelectronics Inc. | AAOI | 1,888,041 | $49.0M | 1.87% |
| 7 | Encompass Health Corporation | EHC | 358,800 | $45.6M | 1.75% |
| 8 | Frontdoor, Inc. | FTDR | 610,860 | $41.1M | 1.57% |
| 9 | ADMA Biologics, Inc. | ADMA | 2,712,040 | $39.8M | 1.52% |
| 10 | American Superconductor | AMSC | 665,700 | $39.5M | 1.51% |
| 11 | Sportradar Group | SRAD | 1,379,100 | $37.1M | 1.42% |
| 12 | Nova Ltd. | NVMI | 113,285 | $36.2M | 1.39% |
| 13 | Itron Inc | ITRI | 284,150 | $35.4M | 1.36% |
| 14 | Skywest Inc | SKYW | 330,790 | $33.3M | 1.27% |
| 15 | SiTime Corporation | SITM | 106,396 | $32.1M | 1.23% |
| 16 | Waystar Holding Corp. | WAY | 836,550 | $31.7M | 1.21% |
| 17 | Mercury Systems, Inc. | MRCY | 398,500 | $30.8M | 1.18% |
| 18 | Clean Harbors, Inc. | CLH | 116,770 | $27.1M | 1.04% |
| 19 | Stride, Inc. | LRN | 181,800 | $27.1M | 1.04% |
| 20 | BrightSpring Health Services | 10950A106 | 908,000 | $26.8M | 1.03% |
| 21 | Primoris Services Corp. | 74164F103 | 192,400 | $26.4M | 1.01% |
| 22 | Digital Ocean Holdings, Inc. | DOCN | 772,000 | $26.4M | 1.01% |
| 23 | Osi Systems, Inc. | OSIS | 101,400 | $25.3M | 0.97% |
| 24 | Tutor Perini Corp. | TPC | 377,800 | $24.8M | 0.95% |
| 25 | Veracyte, Inc. | VCYT | 721,690 | $24.8M | 0.95% |
| 26 | Rush Street Interactive, Inc. | RSI | 1,191,560 | $24.4M | 0.93% |
| 27 | Commvault Systems, Inc. | CVLT | 128,600 | $24.3M | 0.93% |
| 28 | Freshworks, Inc. | FRSH | 2,059,470 | $24.2M | 0.93% |
| 29 | Life Time Holdings, Inc. | LTH | 866,400 | $23.9M | 0.92% |
| 30 | Qorvo, Inc. | QRVO | 260,900 | $23.8M | 0.91% |
| 31 | Parsons Corp. | PSN | 272,730 | $22.6M | 0.87% |
| 32 | Camtek, Ltd. | CAMT | 213,580 | $22.4M | 0.86% |
| 33 | Pegasystems Inc. | PEGA | 389,400 | $22.4M | 0.86% |
| 34 | Everus Construction Group | EVEX-WT | 259,800 | $22.3M | 0.85% |
| 35 | Macom Technology Solutions | 55405Y100 | 177,790 | $22.1M | 0.85% |
| 36 | Grand Canyon Education, Inc. | LOPE | 99,800 | $21.9M | 0.84% |
| 37 | Silicon Motion Techn ADR | SIMO | 230,600 | $21.9M | 0.84% |
| 38 | Flowserve Corporation | FLS | 409,285 | $21.7M | 0.83% |
| 39 | Genpact Ltd. | G | 516,800 | $21.6M | 0.83% |
| 40 | Blue Bird Corporation | BLBD | 373,400 | $21.5M | 0.82% |
| 41 | AAR Corp. | AIR | 236,500 | $21.2M | 0.81% |
| 42 | Dutch Bros., Inc. | BROS | 404,500 | $21.2M | 0.81% |
| 43 | Q2 Holdings, Inc. | QTWO | 292,260 | $21.2M | 0.81% |
| 44 | Levi Strauss & Co. | LEVI | 903,500 | $21.1M | 0.81% |
| 45 | Box, Inc. | BXCAP | 652,320 | $21.1M | 0.81% |
| 46 | Genedx Holdings Corp. | WGSWW | 193,920 | $20.9M | 0.80% |
| 47 | Arcosa, Inc. | ACA | 221,600 | $20.8M | 0.80% |
| 48 | Carpenter Technology Corp. | CRS | 82,611 | $20.3M | 0.78% |
| 49 | Lattice Semiconductor Corporat | LSCC | 275,536 | $20.2M | 0.77% |
| 50 | Federal Signal Corp. | FSS | 166,500 | $19.8M | 0.76% |
| 51 | Impinj, Inc. | PI | 107,120 | $19.4M | 0.74% |
| 52 | Merit Medical System Inc | 589889104 | 232,010 | $19.3M | 0.74% |
| 53 | CarGurus, Inc. | CARG | 518,400 | $19.3M | 0.74% |
| 54 | Imax Corp. | IMAX | 579,600 | $19.0M | 0.73% |
| 55 | Assurant, Inc. | AIZN | 83,000 | $18.0M | 0.69% |
| 56 | ICU Medical, Inc. | ICUI | 149,130 | $17.9M | 0.68% |
| 57 | ACI Worldwide Inc. | ACIW | 330,702 | $17.5M | 0.67% |
| 58 | National Vision Holdings, Inc. | EYE | 594,900 | $17.4M | 0.66% |
| 59 | Fabrinet | FN | 45,900 | $16.7M | 0.64% |
| 60 | Urban Outfitters, Inc. | URBN | 234,300 | $16.7M | 0.64% |
| 61 | Ultra Clean Holdings | UCTT | 613,300 | $16.7M | 0.64% |
| 62 | Argan, Inc | AGX | 60,571 | $16.4M | 0.63% |
| 63 | Remitly Global, Inc. | RELY | 1,002,800 | $16.3M | 0.63% |
| 64 | Littelfuse, Inc. | LFUS | 62,300 | $16.1M | 0.62% |
| 65 | Sprouts Farmers Markets LLC | 85208M102 | 145,500 | $15.8M | 0.61% |
| 66 | FirstCash Holdings, Inc | FCFS | 97,800 | $15.5M | 0.59% |
| 67 | Zeta Global Holdings Corp. | ZETA | 761,200 | $15.1M | 0.58% |
| 68 | Solaris Energy Infrastructur | SEI | 366,900 | $14.7M | 0.56% |
| 69 | Powell Industries Inc. | 739128106 | 47,500 | $14.5M | 0.55% |
| 70 | New York Times Co. Cl A | NYT | 252,000 | $14.5M | 0.55% |
| 71 | SPX Technologies, Inc. | SPXC | 76,900 | $14.4M | 0.55% |
| 72 | Irhythm Technologies Inc | IRTC | 81,200 | $14.0M | 0.53% |
| 73 | HealthEquity Inc. | HQY | 140,080 | $13.3M | 0.51% |
| 74 | EZCorp, Inc. | EZPW | 685,500 | $13.1M | 0.50% |
| 75 | Green Dot Corp. Cl A | GDOT | 970,300 | $13.0M | 0.50% |
| 76 | Badger Meter | BMI | 72,610 | $13.0M | 0.50% |
| 77 | ANI Pharmaceuticals, Inc. | ANIP | 138,900 | $12.7M | 0.49% |
| 78 | Sensient Technologies Corp. | SXT | 134,200 | $12.6M | 0.48% |
| 79 | Genius Sports Ltd. | GENI | 1,015,100 | $12.6M | 0.48% |
| 80 | Zurn Elkay Water Solutions Cor | 98983L108 | 266,000 | $12.5M | 0.48% |
| 81 | Interface, Inc. | TILE | 425,300 | $12.3M | 0.47% |
| 82 | CommScope Holding Company, Inc | 20337X109 | 790,912 | $12.2M | 0.47% |
| 83 | Advanced Energy Industry, Inc. | 007973100 | 69,700 | $11.9M | 0.45% |
| 84 | Kiniksa Pharmaceuticals, Ltd. | G52694109 | 305,200 | $11.9M | 0.45% |
| 85 | Interdigital, Inc. | IDCC | 34,100 | $11.8M | 0.45% |
| 86 | Diodes, Inc. | DIOD | 218,700 | $11.6M | 0.45% |
| 87 | Ameris Bancorp | ABCB | 156,400 | $11.5M | 0.44% |
| 88 | Matador Resources Company | MTDR | 253,900 | $11.4M | 0.44% |
| 89 | Magnite, Inc. | MGNI | 514,000 | $11.2M | 0.43% |
| 90 | Qualys, Inc. | QLYS | 84,000 | $11.1M | 0.43% |
| 91 | Skyward Specialty Ins Group | 830940102 | 231,800 | $11.0M | 0.42% |
| 92 | Adaptive Biotechnologies | ADTI | 726,500 | $10.9M | 0.42% |
| 93 | M/I Homes, Inc. | MHO | 73,200 | $10.6M | 0.40% |
| 94 | Commerce Bancshares, Inc. | CBSH | 176,890 | $10.6M | 0.40% |
| 95 | Catalyst Pharmaceuticals, Inc. | CPRX | 528,560 | $10.4M | 0.40% |
| 96 | OneSpan, Inc. | OSPN | 640,450 | $10.2M | 0.39% |
| 97 | Varonis Sys, Inc. | VRNS | 176,600 | $10.1M | 0.39% |
| 98 | Turning PT Brands, Inc. | 90041L105 | 101,000 | $10.0M | 0.38% |
| 99 | LeMaitre Vascular, Inc. | LMAT | 113,767 | $10.0M | 0.38% |
| 100 | OneSpaWorld Holdings Limited | OSW | 465,400 | $9.8M | 0.38% |
| 101 | LivaNova Plc | LIVN | 186,000 | $9.7M | 0.37% |
| 102 | The Vita Coco Co., Inc. | COCO | 228,300 | $9.7M | 0.37% |
| 103 | Five9, Inc. | FIVN | 396,600 | $9.6M | 0.37% |
| 104 | IBEX Ltd. | IBEX | 236,000 | $9.6M | 0.37% |
| 105 | Addus Homecare Corp. | ADUS | 78,200 | $9.2M | 0.35% |
| 106 | Ducommun Inc. | DCO | 95,700 | $9.2M | 0.35% |
| 107 | Pediatrix Medical Group, Inc. | MD | 545,600 | $9.1M | 0.35% |
| 108 | CorMedix, Inc. | CRMD | 785,700 | $9.1M | 0.35% |
| 109 | Dave, Inc. | 23834J201 | 45,622 | $9.1M | 0.35% |
| 110 | Magnolia Oil & Gas Corp. | MGY | 376,300 | $9.0M | 0.34% |
| 111 | Artivion, Inc | AORT | 211,800 | $9.0M | 0.34% |
| 112 | Natural Grocers by Vitamin Cot | NGVC | 218,806 | $8.8M | 0.34% |
| 113 | Halozyme Therapeutics, Inc. | HALO | 117,580 | $8.6M | 0.33% |
| 114 | Exlservice Holdings | EXLS | 194,400 | $8.6M | 0.33% |
| 115 | Hawkins, Inc. | HWKN | 45,700 | $8.4M | 0.32% |
| 116 | American Eagle Outfitters | AEO | 484,000 | $8.3M | 0.32% |
| 117 | Limbach Hldgs, Inc. | LMB | 83,700 | $8.1M | 0.31% |
| 118 | Nicolet Bankshares, Inc. | NIC | 60,200 | $8.1M | 0.31% |
| 119 | nLIGHT Inc. | LASR | 266,000 | $7.9M | 0.30% |
| 120 | Malibu Boats, Inc. | MBUU | 238,200 | $7.7M | 0.30% |
| 121 | Cellebrite DI Ltd. | CLBT | 414,550 | $7.7M | 0.29% |
| 122 | Rev Group, Inc. | 749527107 | 134,500 | $7.6M | 0.29% |
| 123 | Alpha & Omega Semiconductor | AOSL | 271,100 | $7.6M | 0.29% |
| 124 | VSE Corp. | VSECU | 44,600 | $7.4M | 0.28% |
| 125 | First Merchants Corporation | FRMEP | 196,000 | $7.4M | 0.28% |
| 126 | Liquidia Corp. | LQDA | 321,200 | $7.3M | 0.28% |
| 127 | CRA Int'l Inc. | 12618T105 | 34,900 | $7.3M | 0.28% |
| 128 | Radware, Ltd. | RDWR | 274,700 | $7.3M | 0.28% |
| 129 | Evolv Technologies Holdings | EVLVW | 948,400 | $7.2M | 0.27% |
| 130 | Lincoln EDL Svcs | 533535100 | 301,600 | $7.1M | 0.27% |
| 131 | Boot Barn Hldgs, Inc. | BOOT | 42,100 | $7.0M | 0.27% |
| 132 | FB Financial Corp. | 30257X104 | 123,500 | $6.9M | 0.26% |
| 133 | Alphatec Hldgs Inc. | ATEC | 461,122 | $6.7M | 0.26% |
| 134 | Weave Communications, Inc. | WEAV | 985,950 | $6.6M | 0.25% |
| 135 | Coursera, Inc. | COUR | 561,000 | $6.6M | 0.25% |
| 136 | Build A Bear | BBW | 91,600 | $6.0M | 0.23% |
| 137 | Huron Consulting Group, Inc. | HURN | 40,500 | $5.9M | 0.23% |
| 138 | AxoGen Inc. | AXGN | 328,100 | $5.9M | 0.22% |
| 139 | Pagaya Technologies Ltd. | PGYWW | 190,000 | $5.6M | 0.22% |
| 140 | NPK International, Inc. | NPKI | 496,500 | $5.6M | 0.22% |
| 141 | Powerfleet, Inc. | AIOT | 1,068,800 | $5.6M | 0.21% |
| 142 | Precision Drilling Corp. | PDS | 97,100 | $5.5M | 0.21% |
| 143 | Atricure, Inc. | ATRC | 153,500 | $5.4M | 0.21% |
| 144 | Red Violet, Inc. | RDVT | 100,300 | $5.2M | 0.20% |
| 145 | Expro Group Holdings N.V. | XPRO | 435,500 | $5.2M | 0.20% |
| 146 | 1st Source Corp. | SRCE | 82,700 | $5.1M | 0.19% |
| 147 | Insteel Industries Inc. | 45774W108 | 132,732 | $5.1M | 0.19% |
| 148 | Backblaze, Inc. | BLZE | 538,700 | $5.0M | 0.19% |
| 149 | CECO Environmental Corp. | CECO | 92,008 | $4.7M | 0.18% |
| 150 | AvePoint, Inc. | AVPT | 296,300 | $4.4M | 0.17% |
| 151 | Climb Global Solutions, Inc. | CLMB | 32,500 | $4.4M | 0.17% |
| 152 | The Gorman-Rupp Co. | GRC | 90,900 | $4.2M | 0.16% |
| 153 | Eton Pharmaceuticals, Inc. | ETON | 192,360 | $4.2M | 0.16% |
| 154 | Bioventus, Inc. | BVS | 601,714 | $4.0M | 0.15% |
| 155 | LSI Industries Inc. | 50216C108 | 169,200 | $4.0M | 0.15% |
| 156 | Lindblad Expeditions Holdings, | LIND | 299,400 | $3.8M | 0.15% |
| 157 | Sea Ltd | SE | 17,000 | $3.0M | 0.12% |
| 158 | Matrix Service Co. | 576853105 | 221,075 | $2.9M | 0.11% |
| 159 | Cadence Design System, Inc. | CDNS | 7,400 | $2.6M | 0.10% |
| 160 | Spotify Technology S.A. | SPOT | 2,800 | $2.0M | 0.07% |
| 161 | Futu Holdings Ltd. | FUTU | 11,000 | $1.9M | 0.07% |
| 162 | Shopify, Inc. | SHOP | 10,000 | $1.5M | 0.06% |
| 163 | SPDR S&P 500 ETF Trust | SPY | 2,173 | $1.4M | 0.06% |
| 164 | Microsoft Corp. | MSFT | 2,665 | $1.4M | 0.05% |
| 165 | JP Morgan Chase & Company Inc. | VYLD | 3,121 | $984,496 | 0.04% |
| 166 | PDD Holdings Inc. ADR | PDD | 7,000 | $925,190 | 0.04% |
| 167 | Apple, Inc. | AAPL | 3,388 | $862,601 | 0.03% |
| 168 | Hesai Group | HSIGF | 28,000 | $786,800 | 0.03% |
| 169 | Aris Water Solutions, Inc. | 04041L106 | 22,201 | $547,486 | 0.02% |
| 170 | The Travelers Co., Inc. | TRV | 1,670 | $466,330 | 0.02% |
| 171 | Alphabet, Inc. Cl A | GOOG | 1,900 | $461,890 | 0.02% |
| 172 | Resmed Inc. | RSMDF | 1,450 | $396,909 | 0.02% |
| 173 | Alphabet, Inc. Cl C | GOOG | 1,620 | $394,551 | 0.02% |
| 174 | Mastercard, Inc. | MA | 671 | $381,908 | 0.01% |
| 175 | Johnson & Johnson | JNJ | 2,047 | $379,522 | 0.01% |
| 176 | Amgen, Inc. | AMGN | 1,034 | $291,916 | 0.01% |
| 177 | Bank of New York Mellon Corp. | 064058100 | 2,608 | $284,135 | 0.01% |
| 178 | Newmont Mining | NEMCL | 3,171 | $267,389 | 0.01% |
| 179 | McDonald's Corporation | MCD | 852 | $258,864 | 0.01% |
| 180 | Wal Mart Stores Inc. | WMT | 2,357 | $242,876 | 0.01% |
| 181 | Aflac Inc. | AFL | 2,000 | $223,400 | 0.01% |
| 182 | Caterpillar, Inc. | CAT | 426 | $203,224 | 0.01% |
| 183 | Xenacare Hldgs, Inc. | 98401A106 | 140,000 | $0 | 0.00% |