13F HOLDINGS REPORT
OBERWEIS ASSET MANAGEMENT INC/
Quarter ended Q1 2025 · Filed May 15, 2025 · Accession 0001213900-25-043859
Total Value
$2.01B
Positions
192
Other Managers
0
Confidential Omitted
No
Holdings (192)
| # | Issuer | Ticker / CUSIP | Shares | Value | % of Filing |
|---|---|---|---|---|---|
| 1 | ADMA Biologics, Inc. | ADMA | 3,426,260 | $68.0M | 3.39% |
| 2 | Credo Technology Group | CRDO | 1,259,915 | $50.6M | 2.52% |
| 3 | SharkNinja, Inc. | SN | 500,160 | $41.7M | 2.08% |
| 4 | Encompass Health Corporation | EHC | 370,720 | $37.5M | 1.87% |
| 5 | Doximity, Inc. | DOCS | 584,060 | $33.9M | 1.69% |
| 6 | Ambarella, Inc. | AMBA | 568,825 | $28.6M | 1.43% |
| 7 | Itron Inc | ITRI | 272,510 | $28.5M | 1.42% |
| 8 | Skywest Inc | SKYW | 319,150 | $27.9M | 1.39% |
| 9 | Waystar Holding Corp. | WAY | 713,040 | $26.6M | 1.33% |
| 10 | Genpact Ltd. | G | 523,600 | $26.4M | 1.31% |
| 11 | Rambus, Inc | RMBS | 507,350 | $26.3M | 1.31% |
| 12 | Stride, Inc. | LRN | 207,300 | $26.2M | 1.31% |
| 13 | Dorman Products, Inc. | 258278100 | 208,520 | $25.1M | 1.25% |
| 14 | Flowserve Corporation | FLS | 513,184 | $25.1M | 1.25% |
| 15 | Zeta Global Holdings Corp. | ZETA | 1,843,240 | $25.0M | 1.25% |
| 16 | Sportradar Group | SRAD | 1,144,700 | $24.7M | 1.23% |
| 17 | Freshworks, Inc. | FRSH | 1,728,520 | $24.4M | 1.22% |
| 18 | Life Time Holdings, Inc. | LTH | 797,000 | $24.1M | 1.20% |
| 19 | Macom Technology Solutions | 55405Y100 | 232,520 | $23.3M | 1.16% |
| 20 | Frontdoor, Inc. | FTDR | 599,460 | $23.0M | 1.15% |
| 21 | Veracyte, Inc. | VCYT | 769,350 | $22.8M | 1.14% |
| 22 | Primo Brands Corp. | PRMB | 632,400 | $22.4M | 1.12% |
| 23 | Merit Medical System Inc | 589889104 | 208,560 | $22.0M | 1.10% |
| 24 | Clean Harbors, Inc. | CLH | 110,320 | $21.7M | 1.08% |
| 25 | ICU Medical, Inc. | ICUI | 155,690 | $21.6M | 1.08% |
| 26 | Applied Optoelectronics Inc. | AAOI | 1,384,841 | $21.3M | 1.06% |
| 27 | ACI Worldwide Inc. | ACIW | 386,202 | $21.1M | 1.05% |
| 28 | Nova Ltd. | NVMI | 111,000 | $20.5M | 1.02% |
| 29 | BellRing Brands, Inc. | BRBR | 273,300 | $20.3M | 1.01% |
| 30 | Digital Ocean Holdings, Inc. | DOCN | 586,500 | $19.6M | 0.98% |
| 31 | Osi Systems, Inc. | OSIS | 100,400 | $19.5M | 0.97% |
| 32 | Q2 Holdings, Inc. | QTWO | 242,990 | $19.4M | 0.97% |
| 33 | Deckers Outdoor Corp. | DECK | 169,870 | $19.0M | 0.95% |
| 34 | Box, Inc. | BXCAP | 597,100 | $18.4M | 0.92% |
| 35 | Mercury Systems, Inc. | MRCY | 412,300 | $17.8M | 0.89% |
| 36 | Mr. Cooper Group Inc. | 62482R107 | 147,100 | $17.6M | 0.88% |
| 37 | Parsons Corp. | PSN | 291,460 | $17.3M | 0.86% |
| 38 | Assurant, Inc. | AIZN | 81,000 | $17.0M | 0.85% |
| 39 | Federal Signal Corp. | FSS | 229,830 | $16.9M | 0.84% |
| 40 | Commvault Systems, Inc. | CVLT | 107,000 | $16.9M | 0.84% |
| 41 | The Gap,Inc. | GAP | 817,600 | $16.9M | 0.84% |
| 42 | Fabrinet | FN | 84,600 | $16.7M | 0.83% |
| 43 | Century Communities, Inc. | 156504300 | 248,000 | $16.6M | 0.83% |
| 44 | Sprouts Farmers Markets LLC | 85208M102 | 108,500 | $16.6M | 0.83% |
| 45 | Bright Horizons Family Solutio | 109194100 | 129,904 | $16.5M | 0.82% |
| 46 | Clear Secure, Inc. | YOU | 609,400 | $15.8M | 0.79% |
| 47 | Onto Innovation, Inc. | ONTO | 129,175 | $15.7M | 0.78% |
| 48 | Arcosa, Inc. | ACA | 203,000 | $15.7M | 0.78% |
| 49 | Grand Canyon Education, Inc. | LOPE | 88,700 | $15.3M | 0.76% |
| 50 | Imax Corp. | IMAX | 579,600 | $15.3M | 0.76% |
| 51 | Carpenter Technology Corp. | CRS | 81,411 | $14.7M | 0.74% |
| 52 | CarGurus, Inc. | CARG | 500,000 | $14.6M | 0.73% |
| 53 | Dolby Laboratories, Inc. | DLB | 181,000 | $14.5M | 0.72% |
| 54 | Primoris Services Corp. | 74164F103 | 242,900 | $13.9M | 0.70% |
| 55 | Pegasystems Inc. | PEGA | 195,400 | $13.6M | 0.68% |
| 56 | Dutch Bros., Inc. | BROS | 219,000 | $13.5M | 0.67% |
| 57 | Cellebrite DI Ltd. | CLBT | 692,910 | $13.5M | 0.67% |
| 58 | Ultra Clean Holdings | UCTT | 613,300 | $13.1M | 0.65% |
| 59 | Cabot Corp. | CBT | 152,800 | $12.7M | 0.63% |
| 60 | AAR Corp. | AIR | 220,000 | $12.3M | 0.61% |
| 61 | American Superconductor | AMSC | 668,200 | $12.1M | 0.60% |
| 62 | Camtek, Ltd. | CAMT | 199,980 | $11.7M | 0.58% |
| 63 | Omnicell, Inc. | OMCL | 333,200 | $11.6M | 0.58% |
| 64 | Blue Bird Corporation | BLBD | 358,900 | $11.6M | 0.58% |
| 65 | Catalyst Pharmaceuticals, Inc. | CPRX | 467,600 | $11.3M | 0.57% |
| 66 | Genedx Holdings Corp. | WGSWW | 123,500 | $10.9M | 0.55% |
| 67 | NOV, Inc. | NOV | 716,400 | $10.9M | 0.54% |
| 68 | Rush Street Interactive, Inc. | RSI | 991,900 | $10.6M | 0.53% |
| 69 | Commerce Bancshares, Inc. | CBSH | 167,790 | $10.4M | 0.52% |
| 70 | EZCorp, Inc. | EZPW | 685,500 | $10.1M | 0.50% |
| 71 | Under Armour, Inc. Class A | UA | 1,593,200 | $10.0M | 0.50% |
| 72 | Five9, Inc. | FIVN | 366,600 | $10.0M | 0.50% |
| 73 | SPX Technologies, Inc. | SPXC | 75,400 | $9.7M | 0.48% |
| 74 | Duolingo, Inc. | DUOL | 31,000 | $9.6M | 0.48% |
| 75 | Playa Hotels & Resorts N.V. | N70544106 | 705,100 | $9.4M | 0.47% |
| 76 | HealthEquity Inc. | HQY | 105,900 | $9.4M | 0.47% |
| 77 | Magnolia Oil & Gas Corp. | MGY | 369,200 | $9.3M | 0.46% |
| 78 | Silicon Motion Techn ADR | SIMO | 183,100 | $9.3M | 0.46% |
| 79 | Qualys, Inc. | QLYS | 72,100 | $9.1M | 0.45% |
| 80 | Exlservice Holdings | EXLS | 190,800 | $9.0M | 0.45% |
| 81 | Matador Resources Company | MTDR | 175,300 | $9.0M | 0.45% |
| 82 | Weave Communications, Inc. | WEAV | 779,200 | $8.6M | 0.43% |
| 83 | Argan, Inc | AGX | 65,790 | $8.6M | 0.43% |
| 84 | LeMaitre Vascular, Inc. | LMAT | 102,065 | $8.6M | 0.43% |
| 85 | Krystal Biotech, Inc. | KRYS | 46,800 | $8.4M | 0.42% |
| 86 | Interface, Inc. | TILE | 425,300 | $8.4M | 0.42% |
| 87 | FirstCash Holdings, Inc | FCFS | 70,100 | $8.4M | 0.42% |
| 88 | OneSpan, Inc. | OSPN | 546,350 | $8.3M | 0.42% |
| 89 | Ameris Bancorp | ABCB | 144,100 | $8.3M | 0.41% |
| 90 | Limbach Hldgs, Inc. | LMB | 110,800 | $8.3M | 0.41% |
| 91 | Evolus, Inc. | EOLS | 677,600 | $8.2M | 0.41% |
| 92 | Pediatrix Medical Group, Inc. | MD | 545,600 | $7.9M | 0.39% |
| 93 | Grid Dynamics Holdings, Inc. | GDYN | 503,000 | $7.9M | 0.39% |
| 94 | Solaris Energy Infrastructur | SEI | 360,000 | $7.8M | 0.39% |
| 95 | OneSpaWorld Holdings Limited | OSW | 465,400 | $7.8M | 0.39% |
| 96 | Boot Barn Hldgs, Inc. | BOOT | 72,700 | $7.8M | 0.39% |
| 97 | Tutor Perini Corp. | TPC | 336,200 | $7.8M | 0.39% |
| 98 | Ichor Holdings Ltd. | ICHR | 337,800 | $7.6M | 0.38% |
| 99 | CareDx, Inc. | CDNA | 423,271 | $7.5M | 0.37% |
| 100 | Oscar Health, Inc. | OSCR | 568,330 | $7.5M | 0.37% |
| 101 | Despegar Com Corp. | G27358103 | 389,300 | $7.3M | 0.36% |
| 102 | SPS Comm Inc. | SPSC | 54,800 | $7.3M | 0.36% |
| 103 | First Merchants Corporation | FRMEP | 178,400 | $7.2M | 0.36% |
| 104 | The Vita Coco Co., Inc. | COCO | 230,000 | $7.0M | 0.35% |
| 105 | VSE Corp. | VSECU | 58,600 | $7.0M | 0.35% |
| 106 | Aris Water Solutions, Inc. | 04041L106 | 219,189 | $7.0M | 0.35% |
| 107 | Varonis Sys, Inc. | VRNS | 173,300 | $7.0M | 0.35% |
| 108 | Skyward Specialty Ins Group | 830940102 | 131,600 | $7.0M | 0.35% |
| 109 | ACM Research, Inc. Class A | 00108J109 | 296,948 | $6.9M | 0.35% |
| 110 | Interdigital, Inc. | IDCC | 33,000 | $6.8M | 0.34% |
| 111 | M/I Homes, Inc. | MHO | 58,200 | $6.6M | 0.33% |
| 112 | Blueprint Medicines Corp. | 09627Y109 | 75,000 | $6.6M | 0.33% |
| 113 | Five Below | FIVE | 85,000 | $6.4M | 0.32% |
| 114 | Sweetgreen, Inc. | SG | 250,101 | $6.3M | 0.31% |
| 115 | Nicolet Bankshares, Inc. | NIC | 55,200 | $6.0M | 0.30% |
| 116 | Radware, Ltd. | RDWR | 274,700 | $5.9M | 0.30% |
| 117 | Addus Homecare Corp. | ADUS | 59,900 | $5.9M | 0.30% |
| 118 | Powerfleet, Inc. | AIOT | 1,068,800 | $5.9M | 0.29% |
| 119 | Malibu Boats, Inc. | MBUU | 190,900 | $5.9M | 0.29% |
| 120 | Huron Consulting Group, Inc. | HURN | 40,500 | $5.8M | 0.29% |
| 121 | Kirby Corp. | KEX | 56,950 | $5.8M | 0.29% |
| 122 | FB Financial Corp. | 30257X104 | 123,500 | $5.7M | 0.29% |
| 123 | AxoGen Inc. | AXGN | 300,500 | $5.6M | 0.28% |
| 124 | Ducommun Inc. | DCO | 95,700 | $5.6M | 0.28% |
| 125 | Bioventus, Inc. | BVS | 601,714 | $5.5M | 0.27% |
| 126 | Rev Group, Inc. | 749527107 | 172,600 | $5.5M | 0.27% |
| 127 | Natural Grocers by Vitamin Cot | NGVC | 132,702 | $5.3M | 0.27% |
| 128 | Kiniksa Pharmaceuticals, Ltd. | G52694109 | 237,200 | $5.3M | 0.26% |
| 129 | CRA Int'l Inc. | 12618T105 | 30,000 | $5.2M | 0.26% |
| 130 | Verint Sys Inc. | 92343x100 | 274,100 | $4.9M | 0.24% |
| 131 | Atricure, Inc. | ATRC | 151,500 | $4.9M | 0.24% |
| 132 | Mannkind Corp. | MNKD | 968,400 | $4.9M | 0.24% |
| 133 | Employers Holdings, Inc. | EIG | 96,100 | $4.9M | 0.24% |
| 134 | Hawkins, Inc. | HWKN | 45,700 | $4.8M | 0.24% |
| 135 | QuinStreet, Inc. | QNST | 262,800 | $4.7M | 0.23% |
| 136 | Artivion, Inc | AORT | 190,400 | $4.7M | 0.23% |
| 137 | Delcath Systems, Inc. | DCTH | 362,200 | $4.6M | 0.23% |
| 138 | Willdan Group Inc. | WLDN | 110,100 | $4.5M | 0.22% |
| 139 | Faro Technologies, Inc. | 311642102 | 163,000 | $4.4M | 0.22% |
| 140 | Clearwater Paper Corp | CLW | 175,200 | $4.4M | 0.22% |
| 141 | Alpha & Omega Semiconductor | AOSL | 177,700 | $4.4M | 0.22% |
| 142 | 1st Source Corp. | SRCE | 73,500 | $4.4M | 0.22% |
| 143 | ANI Pharmaceuticals, Inc. | ANIP | 65,600 | $4.4M | 0.22% |
| 144 | AvePoint, Inc. | AVPT | 296,300 | $4.3M | 0.21% |
| 145 | Ardelyx, Inc. | ARDX | 851,900 | $4.2M | 0.21% |
| 146 | Helix Energy Solutions Group, | 42330P107 | 501,700 | $4.2M | 0.21% |
| 147 | Liquidia Corp. | LQDA | 250,900 | $3.7M | 0.18% |
| 148 | IBEX Ltd. | IBEX | 148,700 | $3.6M | 0.18% |
| 149 | Vital Energy, Inc. | 516806205 | 168,700 | $3.6M | 0.18% |
| 150 | RPC, Inc. | RES | 629,169 | $3.5M | 0.17% |
| 151 | Red Violet, Inc. | RDVT | 85,300 | $3.2M | 0.16% |
| 152 | The Gorman-Rupp Co. | GRC | 90,900 | $3.2M | 0.16% |
| 153 | Precision Drilling Corp. | PDS | 68,400 | $3.2M | 0.16% |
| 154 | Sterling Construction Co., Inc | STRL | 27,300 | $3.1M | 0.15% |
| 155 | Lincoln EDL Svcs | 533535100 | 189,600 | $3.0M | 0.15% |
| 156 | CorMedix, Inc. | CRMD | 485,000 | $3.0M | 0.15% |
| 157 | LSI Industries Inc. | 50216C108 | 169,200 | $2.9M | 0.14% |
| 158 | Powell Industries Inc. | 739128106 | 16,800 | $2.9M | 0.14% |
| 159 | Spotify Technology S.A. | SPOT | 5,000 | $2.8M | 0.14% |
| 160 | Matrix Service Co. | 576853105 | 221,075 | $2.7M | 0.14% |
| 161 | Climb Global Solutions, Inc. | CLMB | 24,000 | $2.7M | 0.13% |
| 162 | Backblaze, Inc. | BLZE | 538,700 | $2.6M | 0.13% |
| 163 | Lindblad Expeditions Holdings, | LIND | 266,000 | $2.5M | 0.12% |
| 164 | Magnite, Inc. | MGNI | 205,700 | $2.3M | 0.12% |
| 165 | Cadence Design System, Inc. | CDNS | 7,300 | $1.9M | 0.09% |
| 166 | Sea Ltd | SE | 11,500 | $1.5M | 0.07% |
| 167 | SPDR S&P 500 ETF Trust | SPY | 2,163 | $1.2M | 0.06% |
| 168 | Futu Holdings Ltd. | FUTU | 11,400 | $1.2M | 0.06% |
| 169 | PDD Holdings Inc. ADR | PDD | 9,000 | $1.1M | 0.05% |
| 170 | Microsoft Corp. | MSFT | 2,685 | $1.0M | 0.05% |
| 171 | Apple, Inc. | AAPL | 4,011 | $890,939 | 0.04% |
| 172 | JP Morgan Chase & Company Inc. | VYLD | 3,518 | $862,871 | 0.04% |
| 173 | GDS Holdings Ltd. ADR | GDHLF | 27,500 | $696,575 | 0.03% |
| 174 | MakeMyTrip Ltd. | MMYT | 6,350 | $622,237 | 0.03% |
| 175 | Full Truck Alliance Co. Ltd. | YMM | 45,000 | $574,650 | 0.03% |
| 176 | Tal Education Group ADR | TAL | 40,000 | $528,400 | 0.03% |
| 177 | The Travelers Co., Inc. | TRV | 1,915 | $506,437 | 0.03% |
| 178 | LivaNova Plc | LIVN | 10,835 | $425,599 | 0.02% |
| 179 | Hesai Group | HSIGF | 28,000 | $414,400 | 0.02% |
| 180 | Mastercard, Inc. | MA | 711 | $389,802 | 0.02% |
| 181 | Johnson & Johnson | JNJ | 2,119 | $351,489 | 0.02% |
| 182 | Resmed Inc. | RSMDF | 1,450 | $324,583 | 0.02% |
| 183 | Amgen, Inc. | AMGN | 1,033 | $321,791 | 0.02% |
| 184 | Alphabet, Inc. Cl A | GOOG | 1,900 | $293,816 | 0.01% |
| 185 | McDonald's Corporation | MCD | 849 | $265,295 | 0.01% |
| 186 | Alphabet, Inc. Cl C | GOOG | 1,620 | $253,093 | 0.01% |
| 187 | Bank of New York Mellon Corp. | 064058100 | 2,946 | $247,062 | 0.01% |
| 188 | Wal Mart Stores Inc. | WMT | 2,606 | $228,764 | 0.01% |
| 189 | Aflac Inc. | AFL | 2,000 | $222,380 | 0.01% |
| 190 | Tuya, Inc. ADS | TUYA | 33,000 | $99,990 | 0.00% |
| 191 | VNET Group, Inc. - ADR | VNET | 10,000 | $82,000 | 0.00% |
| 192 | Xenacare Hldgs, Inc. | 98401A106 | 140,000 | $0 | 0.00% |