Oberweis Asset Management Inc/
We are missing part of this fund's Q1 2026 filing.
$3.4B portfolio181 holdingstop 10 = 26%filed 2026-05-15
This fund reported $3.4B for Q1 2026 and we only hold $3.4B of it. Partial view.
- $198.8M - 2.3M shares+310K
- 2LITELumentum Hldgs, Inc.5.50%$187.1M - 266K shares-15K
- 3Credo Technology Group2.82%$95.9M - 1.0M shares+347K
- $79.6M - 928K shares+149K
- 5Sharkninja, Inc.1.87%$63.5M - 600K shares+74K
- 6Nova LTD.1.76%$59.9M - 138K shares+25K
- 7DANDana Inc.1.59%$54.2M - 1.6M shares+815K
- $49.4M - 1.2M shares+251K
- $47.9M - 216K shares+37K
- 10RMBSRambus, Inc1.33%$45.3M - 526K shares+64K
- 11CLHClean Harbors, Inc.1.22%$41.4M - 144K shares+27K
- 12SITMSitime Corporation1.21%$41.2M - 119K shares+13K
- 13UCTTUltra Clean Holdings1.17%$39.8M - 640K shares+12K
- 14ECGEverus Construction Group1.13%$38.6M - 327K shares+67K
- 15FTDRFrontdoor, Inc.1.11%$38.0M - 718K shares+107K
- $37.2M - 94K shares+12K
- 17SKYWSkywest Inc1.06%$36.0M - 392K shares+10K
- $34.7M - 374K shares+60K
- 19GMEDGlobus Medical, Inc.-a0.99%$33.8M - 392K shares+122K
- 20Camtek, LTD.0.99%$33.8M - 223K shares+4K
- $32.2M - 1.4M shares+558K
- 22FLSFlowserve Corporation0.94%$32.0M - 435K shares+25K
- 23SIMOSilicon Motion Techn Adr0.93%$31.7M - 283K shares+46K
- 24LTHLife Time Holdings, Inc.0.92%$31.3M - 1.2M shares+101K
- $31.2M - 1.4M shares+23K
- 26FCFSFirstcash Holdings, Inc0.92%$31.1M - 166K shares+34K
- 27FSLYFastly, Inc.0.91%$31.1M - 1.1M shares+381K
- 28TPCTutor Perini Corp.0.89%$30.4M - 394K shares+7K
- 29BROSDutch Bros., Inc.0.89%$30.3M - 598K shares+194K
- $30.1M - 532K shares+165K
- 31MMSIMerit Medical System Inc0.86%$29.2M - 424K shares+155K
- 32FSSFederal Signal Corp.0.85%$28.9M - 268K shares+101K
- 33AMSCAmerican Superconductor0.85%$28.8M - 850K shares+14K
- 34MRCYMercury Systems, Inc.0.84%$28.5M - 391K shares-23K
- 35ACAArcosa, Inc.0.83%$28.4M - 268K shares+46K
- 36OSISOsi Systems, Inc.0.83%$28.3M - 107K shares+5K
- $28.3M - 270K shares+91K
- 38WAYWaystar Holding Corp.0.83%$28.1M - 1.2M shares+327K
- $28.0M - 289K shares-69K
- 40VCYTVeracyte, Inc.0.79%$27.1M - 840K shares+113K
- 41AIRAar Corp.0.79%$26.8M - 245K shares-28K
- 42ICUIIcu Medical, Inc.0.77%$26.3M - 204K shares+36K
- 43LFUSLittelfuse, Inc.0.72%$24.4M - 72K shares+10K
- 44PRIMPrimoris Services Corp.0.70%$23.8M - 166K shares+3K
- 45RELYRemitly Global, Inc.0.67%$22.8M - 1.5M shares+452K
- 46Genpact LTD.0.66%$22.6M - 607K shares+85K
- 47AIZAssurant, Inc.0.65%$22.3M - 102K shares+19K
- 48BLBDBlue Bird Corporation0.65%$22.1M - 389K shares+7K
- 49IMAXImax Corp.0.64%$21.9M - 577K shares-75K
- 50LEVILevi Strauss & Co.0.63%$21.6M - 1.2M shares+173K
- 51ATECAlphatec Hldgs Inc.0.61%$20.8M - 1.9M shares+908K
- 52LASRNlight Inc.0.61%$20.7M - 363K shares+7K
- 53EYENational Vision Holdings, 0.61%$20.7M - 798K shares+13K
- 54ABCBAmeris Bancorp0.60%$20.6M - 264K shares+107K
- 55Livanova PLC0.60%$20.5M - 322K shares+110K
- 56DRSLeonardo DRS, Inc.0.59%$20.0M - 450K sharesNEW
- 57URBNUrban Outfitters, Inc.0.59%$19.9M - 315K shares+28K
- 58INDVIndivior PLC0.59%$19.9M - 653K sharesNEW
- $19.9M - 117K shares+17K
- 60VISNVistance Networks, Inc.0.58%$19.9M - 1.1M shares+131K
- $19.8M - 313K shares+59K
- 62VIAVViavi Solutions, Inc.0.58%$19.7M - 593K shares+85K
- 63CHYMChime Financial Inc.0.57%$19.4M - 1.0M sharesNEW
- 64PEGAPegasystems Inc.0.57%$19.4M - 455K shares+30K
- 65CPRXCatalyst Pharmaceuticals, 0.57%$19.3M - 781K shares+194K
- 66QTWOQ2 Holdings, Inc.0.55%$18.7M - 395K shares+58K
- 67POWLPowell Industries Inc.0.54%$18.5M - 34K shares-15K
- 68IRTCIrhythm Holdings, Inc.0.54%$18.4M - 156K shares+36K
- 69BOXBox, Inc.0.54%$18.2M - 772K shares+119K
- 70AGXArgan, Inc0.53%$18.1M - 33K shares+351
- 71Argan, Inc0.53%$18.1M - 33K shares+351
- 72HNGEHinge Health, Inc.0.53%$18.0M - 466K sharesNEW
- 73NYTNew York Times Co. CL A0.52%$17.7M - 212K shares-91K
- 74AEOAmerican Eagle Outfitters0.51%$17.4M - 1.0M shares+230K
- $17.0M - 967K shares+219K
- $17.0M - 221K shares+33K
- 77NVSTEnvista Holdings Corp.0.50%$16.9M - 665K sharesNEW
- 78WGSGenedx Holdings Corp.0.49%$16.8M - 261K shares+63K
- 79SPXCSPX Technologies, Inc.0.49%$16.7M - 83K shares+7K
- 80SHAKShake Shack, Inc.0.49%$16.6M - 188K sharesNEW
- 81CALXCalix, Inc.0.48%$16.4M - 335K shares+90K
- 82Super Group SGHC LTD.0.48%$16.4M - 1.5M shares+246K
- 83EZPWEzcorp, Inc.0.48%$16.2M - 639K shares+12K
- 84LMATLemaitre Vascular, Inc.0.48%$16.2M - 149K shares+32K
- 85AEISAdvanced Energy Industry, 0.47%$15.9M - 49K shares+9K
- $15.8M - 352K shares+86K
- 87Fabrinet0.46%$15.8M - 30K shares+5K
- 88Kiniksa Pharmaceuticals, LTD.0.45%$15.3M - 319K shares+6K
- $15.3M - 277K shares+67K
- 90DIODDiodes, Inc.0.45%$15.3M - 224K shares+72K
- 91Ambarella, Inc.0.45%$15.2M - 295K shares-323K
- 92MDPediatrix Medical Group, I0.44%$15.0M - 701K shares+141K
- 93MGYMagnolia Oil & Gas Corp.0.42%$14.3M - 454K shares+78K
- $14.3M - 327K shares+90K
- $14.2M - 220K shares+102K
- 96LQDALiquidia Corp.0.41%$14.0M - 372K shares+43K
- 97ARLOArlo Technologies, Inc.0.41%$14.0M - 982K sharesNEW
- 98HQYHealthequity Inc.0.41%$13.9M - 167K shares+25K
- 99PUMPPropetro Holding Corp.0.41%$13.9M - 966K shares+18K
- 100ZETAZeta Global Holdings Corp.0.41%$13.9M - 871K shares+104K
- 101MIRMirion Technologies, Inc.0.41%$13.8M - 744K shares+136K
- 102Moog Inc. - A0.39%$13.1M - 45K sharesNEW
- 103IDCCInterdigital, Inc.0.38%$12.9M - 43K shares+14K
- 104DCODucommun Inc.0.36%$12.2M - 100K shares+2K
- 105PIImpinj, Inc.0.36%$12.1M - 118K shares+11K
- 106ATENA10 Networks, Inc.0.34%$11.7M - 504K sharesNEW
- 107DAVEDave, Inc.0.34%$11.6M - 67K shares+8K
- 108SBCFSeacoast BKG Corp.0.34%$11.5M - 379K sharesNEW
- 109AXGNAxogen Inc.0.33%$11.3M - 342K shares+6K
- 110BHEBenchmark Electronics Inc0.33%$11.3M - 202K shares+4K
- 111ADPTAdaptive Biotechnologies0.33%$11.2M - 807K shares+62K
- 112Onespaworld Holdings Limited0.33%$11.1M - 486K shares+9K
- 113NICNicolet Bankshares, Inc.0.33%$11.1M - 75K shares+13K
- 114PDSPrecision Drilling Corp.0.33%$11.1M - 113K shares+13K
- 115TILEInterface, Inc.0.32%$11.1M - 444K shares+8K
- 116ETONEton Pharmaceuticals, Inc.0.32%$10.8M - 439K shares+8K
- 117QLYSQualys, Inc.0.31%$10.4M - 119K shares+11K
- 118PLUSEplus, Inc.0.30%$10.3M - 137K shares+27K
- 119EVLVEvolv Technologies Holding0.30%$10.1M - 1.7M shares+594K
- 120BOOTBoot Barn Hldgs, Inc.0.29%$10.0M - 68K shares+14K
- 121AMPXAmprius Technologies, Inc.0.29%$9.9M - 585K sharesNEW
- 122MHOM/i Homes, Inc.0.27%$9.4M - 76K shares+1K
- 123FBKFB Financial Corp.0.25%$8.4M - 162K shares+3K
- 124ADUSAddus Homecare Corp.0.25%$8.4M - 89K shares+11K
- 125CRMDCormedix, Inc.0.24%$8.2M - 1.2M shares+406K
- 126AORTArtivion, Inc0.24%$8.1M - 221K shares+4K
- 127CECOCeco Environmental Corp.0.24%$8.0M - 135K shares-10K
- 128Expro Group Holdings N.V.0.23%$7.9M - 455K shares+8K
- 129THRThermon Group Hldgs Inc.0.23%$7.8M - 155K sharesNEW
- 130MGNIMagnite, Inc.0.23%$7.7M - 648K shares+12K
- 131LINCLincoln Edl SVCS0.23%$7.7M - 188K shares-121K
- 132Radware, LTD.0.22%$7.5M - 287K shares+5K
- 133NPKINPK International, Inc.0.22%$7.5M - 518K shares+9K
- 134COCOThe Vita Coco Co., Inc.0.22%$7.5M - 156K shares-77K
- 135APEIAmerican Public Education,0.22%$7.4M - 130K sharesNEW
- 136BWBabcock & Wilcox Enterpris0.22%$7.3M - 500K sharesNEW
- 137LINDLindblad Expeditions Holdi0.19%$6.6M - 379K shares+72K
- 138VSECVse Corp.0.18%$6.3M - 34K shares+608
- 139KNKnowles Corp.0.18%$6.0M - 234K sharesNEW
- 140SRCE1ST Source Corp.0.18%$6.0M - 86K shares+2K
- 141CRAICra Int'l Inc.0.17%$5.9M - 36K shares+700
- 142GRCThe Gorman-rupp Co.0.17%$5.9M - 95K shares+2K
- 143BVSBioventus, Inc.0.17%$5.7M - 628K shares+12K
- 144CNXNPC Connection, Inc.0.17%$5.6M - 96K sharesNEW
- 145HURNHuron Consulting Group, In0.16%$5.4M - 42K shares+800
- 146TCMDTactile SYS Technology, In0.16%$5.3M - 203K shares+4K
- 147COURCoursera, Inc.0.14%$4.8M - 822K shares+15K
- 148BRCBBlack Rock Coffee Bar, Inc0.14%$4.7M - 366K sharesNEW
- 149RCKYRocky Brands, Inc.0.13%$4.6M - 118K sharesNEW
- 150CLMBClimb Global Solutions, In0.12%$4.2M - 212K shares+160K
- 151RDVTRed Violet, Inc.0.11%$3.6M - 105K shares+2K
- 152SPYSPDR S&P 500 Etf Trust0.05%$1.5M - 2K shares+319
- 153H World Group LTD.0.04%$1.2M - 24K shares-
- 154MSFTMicrosoft Corp.0.03%$987K - 3K shares-
- 155JPMJP Morgan Chase & Company 0.03%$936K - 3K shares+132
- 156AAPLApple, Inc.0.03%$896K - 4K shares+55
- 157FUTUFutu Holdings LTD.0.02%$615K - 5K shares-7K
- 158JNJJohnson & Johnson0.02%$561K - 2K shares+244
- 159GOOGLAlphabet, Inc. CL A0.02%$546K - 2K shares-
- 160ACMRAcm Research, Inc. Class A0.02%$512K - 13K sharesNEW
- 161GOOGAlphabet, Inc. CL C0.01%$465K - 2K shares-
- 162FRSHFreshworks, Inc.0.01%$464K - 58K shares-2.0M
- 163TRVThe Travelers Co., Inc.0.01%$461K - 2K shares+1
- 164AMGNAmgen, Inc.0.01%$364K - 1K shares+1
- 165WEAVWeave Communications, Inc.<0.01%$336K - 73K shares-926K
- 166MAMastercard, Inc.<0.01%$331K - 662 shares-
- 167RMDResmed Inc.<0.01%$325K - 1K shares-
- 168NEMNewmont Mining<0.01%$311K - 3K shares+2
- 169BKBank Of New York Mellon Co<0.01%$298K - 3K shares-43
- 170GLDSPDR Gold Shares Etf<0.01%$290K - 675 shares-
- 171CATCaterpillar, Inc.<0.01%$289K - 408 shares-40
- 172Ibex LTD.<0.01%$274K - 10K shares-232K
- 173WMTWal Mart Stores Inc.<0.01%$266K - 2K shares-50
- 174MCDMcdonald's Corporation<0.01%$266K - 855 shares+2
- 175Wells Fargo Co New Perp PFD<0.01%$260K - 225 shares-
- 176MUMicron Technology<0.01%$236K - 700 shares-4K
- 177XOMExxon Mobil Corp.<0.01%$221K - 1K sharesNEW
- 178AFLAflac Inc.<0.01%$219K - 2K shares-
- 179FCXFreeport Mcmoran Copper & <0.01%$211K - 4K sharesNEW
- 180MRKMerck & Co.<0.01%$208K - 2K sharesNEW
- 181Xenacare Hldgs, Inc.-$0 - 140K shares-
What a 13F does not show
Filed up to 45 days after the quarter ends, so this is Q1 2026, not today. US-listed shares and some options only. No short bets, cash, bonds, or foreign listings.