OBERWEIS ASSET MANAGEMENT INC/ Q1 2024 Filing
Filed May 15, 2024
Portfolio Value
$1.4B
Holdings
196
Report Date
Q1 2024
Filing Type
13F-HR
All Holdings (196 positions)
| # | Stock | Shares | Value | % Portfolio | Type |
|---|---|---|---|---|---|
| 1 | CSTMConstellium NV Cl A | 1,803,271 | $39.9T | 2883572.59% | |
| 2 | WFRDWeatherford International PLC | 222,100 | $25.6T | 1854004.46% | |
| 3 | ACLSAxcelis Technologies | 209,339 | $23.3T | 1688433.84% | |
| 4 | ONTOOnto Innovation, Inc. | 106,930 | $19.4T | 1400397.06% | |
| 5 | ATECAlphatec Hldgs Inc. | 1,385,880 | $19.1T | 1382200.47% | |
| 6 | VRTVertiv Holdings Co. | 229,650 | $18.8T | 1356471.86% | |
| 7 | ADMAADMA Biologics, Inc. | 2,790,700 | $18.4T | 1332104.31% | |
| 8 | AMPHAmphastar Pharmaceuticals, Inc | 417,865 | $18.3T | 1327029.50% | |
| 9 | SKYWSkywest Inc | 262,360 | $18.1T | 1310783.91% | |
| 10 | EHCEncompass Health Corporation | 204,136 | $16.9T | 1219202.40% | |
| 11 | SIMOSilicon Motion Techn ADR | 217,400 | $16.7T | 1209742.30% | |
| 12 | OSKOshkosh Corp. | 133,827 | $16.7T | 1207055.62% | |
| 13 | CLHClean Harbors, Inc. | 81,295 | $16.4T | 1183614.61% | |
| 14 | JPXAerovironment, Inc. | 101,570 | $15.6T | 1125983.69% | |
| 15 | CAMTCamtek, Ltd. | 178,180 | $14.9T | 1079514.87% | |
| 16 | VCYTVeracyte, Inc. | 671,700 | $14.9T | 1076530.28% | |
| 17 | UCTTUltra Clean Holdings | 319,600 | $14.7T | 1061888.48% | |
| 18 | TMDXTransMedics Group, Inc. | 198,200 | $14.7T | 1059898.41% | |
| 19 | SNSharkNinja, Inc. | 235,200 | $14.7T | 1059587.42% | |
| 20 | ICFIICF International, Inc. | 96,900 | $14.6T | 1055641.36% | |
| 21 | ESABESAB Corporation | 129,200 | $14.3T | 1033191.84% | |
| 22 | PSNParsons Corp. | 172,140 | $14.3T | 1032712.26% | |
| 23 | CROXCrocs, Inc. | 95,400 | $13.7T | 992175.29% | |
| 24 | NXTNextracker, Inc. | 235,700 | $13.3T | 959218.72% | |
| 25 | OLEDUniversal Display Corp. | 77,442 | $13.0T | 943474.04% | |
| 26 | ZETAZeta Global Holdings Corp. | 1,181,980 | $12.9T | 934353.94% | |
| 27 | ACMRACM Research, Inc. Class A | 441,130 | $12.9T | 929688.12% | |
| 28 | FLSFlowserve Corporation | 274,378 | $12.5T | 906475.29% | |
| 29 | HAEHaemonetics Corp. | 143,695 | $12.3T | 887005.51% | |
| 30 | ACHCAcadia Healthcare Co., Inc. | 151,650 | $12.0T | 868877.19% | |
| 31 | AEHRAehr Test Systems | 967,852 | $12.0T | 867984.14% | |
| 32 | MMSIMerit Medical System Inc | 156,490 | $11.9T | 857334.68% | |
| 33 | AAOIApplied Optoelectronics Inc. | 849,615 | $11.8T | 851660.59% | |
| 34 | CCSCentury Communities, Inc. | 121,200 | $11.7T | 845884.52% | |
| 35 | FCFSFirstCash Holdings, Inc | 91,700 | $11.7T | 845856.90% | |
| 36 | ITRIItron Inc | 125,600 | $11.6T | 840439.41% | |
| 37 | NEONeoGenomics, Inc. | 737,200 | $11.6T | 838144.72% | |
| 38 | BLBDBlue Bird Corporation | 299,100 | $11.5T | 829372.57% | |
| 39 | TSAACI Worldwide Inc. | 344,562 | $11.4T | 827594.13% | |
| 40 | LIVNLivaNova Plc | 202,500 | $11.3T | 819272.99% | |
| 41 | ITGRInteger Holdings Corporation | 96,700 | $11.3T | 816026.08% | |
| 42 | AXNX*Axonics, Inc. | 163,570 | $11.3T | 815915.21% | |
| 43 | SLABSilicon Laboratories, Inc. | 78,000 | $11.2T | 810761.20% | |
| 44 | EVHEvolent Health, Inc. | 338,940 | $11.1T | 803795.19% | |
| 45 | AZEKAzek Co., Inc. | 220,900 | $11.1T | 802331.00% | |
| 46 | FSSFederal Signal Corp. | 127,830 | $10.8T | 784635.82% | |
| 47 | INFA1EURInformatica Corp. | 309,000 | $10.8T | 782181.73% | |
| 48 | FMFFormfactor Inc. | 236,700 | $10.8T | 781141.79% | |
| 49 | CECOCECO Environmental Corp. | 463,400 | $10.7T | 771511.66% | |
| 50 | STRLSterling Construction Co., Inc | 96,600 | $10.7T | 770678.35% | |
| 51 | YOUClear Secure, Inc. | 500,500 | $10.6T | 769932.62% | |
| 52 | INSWInternational Seaways, Inc. | 198,700 | $10.6T | 764523.16% | |
| 53 | WWDWoodward, Inc. | 68,400 | $10.5T | 762423.45% | |
| 54 | JBIJanus International Group, Inc | 695,400 | $10.5T | 760947.62% | |
| 55 | RAMPLiveramp Hldgs, Inc. | 295,780 | $10.2T | 738021.55% | |
| 56 | VECOVeeco Instruments, Inc. | 269,100 | $9.5T | 684490.16% | |
| 57 | PRIMPrimoris Services Corp. | 209,900 | $8.9T | 646245.06% | |
| 58 | DECKDeckers Outdoor Corp. | 9,420 | $8.9T | 641271.06% | |
| 59 | FTDRFrontdoor, Inc. | 263,300 | $8.6T | 620416.14% | |
| 60 | AMSCAmerican Superconductor | 634,400 | $8.6T | 619868.65% | |
| 61 | ELFe.l.f. Beauty, Inc. | 43,720 | $8.6T | 619846.08% | |
| 62 | MSAMSA Safety Inc | 44,200 | $8.6T | 618851.34% | |
| 63 | GOGrocery Outlet Hldg Corp. | 296,000 | $8.5T | 616117.64% | |
| 64 | SPXCSPX Technologies, Inc. | 69,000 | $8.5T | 614460.71% | |
| 65 | CBTCabot Corp. | 92,100 | $8.5T | 614146.10% | |
| 66 | AIZAssurant, Inc. | 45,000 | $8.5T | 612640.32% | |
| 67 | KWRQuaker Chemical Corporation | 40,500 | $8.3T | 601200.50% | |
| 68 | OSISOsi Systems, Inc. | 55,300 | $7.9T | 571209.35% | |
| 69 | IBPInstalled Building Products, I | 30,400 | $7.9T | 568854.92% | |
| 70 | EZPWEZCorp, Inc. | 685,500 | $7.8T | 561718.23% | |
| 71 | AVNWAviat Networks, Inc. | 199,307 | $7.6T | 552657.14% | |
| 72 | MMSMaximus, Inc. | 89,700 | $7.5T | 544296.51% | |
| 73 | WINGWingstop, Inc. | 20,000 | $7.3T | 529988.70% | |
| 74 | CPRXCatalyst Pharmaceuticals, Inc. | 458,400 | $7.3T | 528462.37% | |
| 75 | PFBCPreferred Bank | 95,000 | $7.3T | 527468.21% | |
| 76 | PLYAPlaya Hotels & Resorts N.V. | 751,500 | $7.3T | 527207.85% | |
| 77 | ATDATI, Inc. | 141,900 | $7.3T | 525144.67% | |
| 78 | PLABPhotronics, Inc. | 256,100 | $7.3T | 524546.48% | |
| 79 | WEAVWeave Communications, Inc. | 609,400 | $7.0T | 505970.83% | |
| 80 | LMBLimbach Hldgs, Inc. | 164,800 | $6.8T | 493683.31% | |
| 81 | CRDOCredo Technology Group | 321,900 | $6.8T | 493324.95% | |
| 82 | IPARInter Parfums | 48,300 | $6.8T | 490834.99% | |
| 83 | RXSTRxSight, Inc. | 126,640 | $6.5T | 472425.54% | |
| 84 | RESRPC, Inc. | 838,476 | $6.5T | 469367.12% | |
| 85 | MCRIMonarch Casino & Resort, Inc. | 86,200 | $6.5T | 467510.93% | |
| 86 | GIIIG-III Apparel Group Ltd. | 220,900 | $6.4T | 463473.16% | |
| 87 | KRYSKrystal Biotech, Inc. | 35,700 | $6.4T | 459407.99% | |
| 88 | FIXComfort Systems USA Inc. | 19,800 | $6.3T | 454964.20% | |
| 89 | PETQEURPetlQ Inc | 340,700 | $6.2T | 450432.24% | |
| 90 | MODModine Mfg Co Com | 64,500 | $6.1T | 444050.32% | |
| 91 | ANFAbercrombie & Fitch Co. | 48,100 | $6.0T | 435994.75% | |
| 92 | TREXTrex Company, Inc. | 60,100 | $6.0T | 433579.28% | |
| 93 | AORTArtivion, Inc | 282,400 | $6.0T | 432176.85% | |
| 94 | ALGMAllegro MicroSystems, Inc. | 221,280 | $6.0T | 431462.65% | |
| 95 | BCBEURPrimo Water Corp. | 323,500 | $5.9T | 426054.72% | |
| 96 | GKDGrand Canyon Education, Inc. | 43,200 | $5.9T | 425572.82% | |
| 97 | UPWKUpwork, Inc. | 469,200 | $5.8T | 416034.76% | |
| 98 | 8LP1Vital Energy, Inc. | 109,400 | $5.7T | 415708.15% | |
| 99 | DVAXDynavax Technologies Corp. | 462,700 | $5.7T | 415290.91% | |
| 100 | EOLSEvolus, Inc. | 397,300 | $5.6T | 402279.36% |
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