Oberweis Asset Management Inc/ Top Holdings and 13F Report (2025) About Oberweis Asset Management Inc/Investment ActivityOberweis Asset Management Inc/ has $2.30 billion in total holdings as of June 30, 2025.Oberweis Asset Management Inc/ owns shares of 185 different stocks, but just 90 companies or ETFs make up 80% of its holdings.Approximately 16.26% of the portfolio was purchased this quarter.About 16.82% of the portfolio was sold this quarter.This quarter, Oberweis Asset Management Inc/ has purchased 192 new stocks and bought additional shares in 89 stocks.Oberweis Asset Management Inc/ sold shares of 32 stocks and completely divested from 28 stocks this quarter.Largest Holdings Credo Technology Group $70,235,811ADMA Biologics $57,104,557Applied Optoelectronics $48,503,773SharkNinja $47,966,594Encompass Health $44,027,295 Largest New Holdings this Quarter 55024U109 - Lumentum $25,575,893 Holding10950A106 - BrightSpring Health Services $18,301,122 Holding74736K101 - Qorvo $17,007,473 Holding82982T106 - SiTime $15,660,528 Holding917047102 - Urban Outfitters $15,385,734 Holding Largest Purchases this Quarter Lumentum 269,050 shares (about $25.58M)BrightSpring Health Services 775,800 shares (about $18.30M)Qorvo 200,300 shares (about $17.01M)SiTime 73,496 shares (about $15.66M)Urban Outfitters 212,100 shares (about $15.39M) Largest Sales this Quarter Credo Technology Group 501,347 shares (about $46.42M)Zeta Global Holdings Corp. 706,840 shares (about $10.95M)Genpact 217,500 shares (about $9.57M)MACOM Technology Solutions 53,000 shares (about $7.59M)Federal Signal 63,330 shares (about $6.74M) Sector Allocation Over TimeMap of 500 Largest Holdings ofOberweis Asset Management Inc/ Selling Neutral Buying Latest 13F Holdings and Changes Since Previous Quarterly FilingIssuer NameHoldings ValueApproximate Purchase/SaleChange in SharesShares Held% of PortfolioSectorCRDOCredo Technology Group$70,235,811$46,419,719 ▼-39.8%758,5683.1%Computer and TechnologyADMAADMA Biologics$57,104,557$5,287,638 ▼-8.5%3,135,8902.5%MedicalAAOIApplied Optoelectronics$48,503,773$12,927,208 ▲36.3%1,888,0412.1%Computer and TechnologySNSharkNinja$47,966,594$1,544,244 ▼-3.1%484,5602.1%Retail/WholesaleEHCEncompass Health$44,027,295$1,434,160 ▼-3.2%359,0251.9%MedicalSRADSportradar Group$38,677,392$6,534,216 ▲20.3%1,377,4001.7%Consumer DiscretionaryAMBAAmbarella$37,879,028$299,605 ▲0.8%573,3601.6%Computer and TechnologyITRIItron$37,448,735$1,578,244 ▲4.4%284,5001.6%Computer and TechnologyFTDRFrontdoor$36,004,088$671,916 ▲1.9%610,8601.6%ConstructionSKYWSkyWest$34,083,070$1,220,195 ▲3.7%331,0001.5%TransportationRMBSRambus$32,380,036$100,511 ▼-0.3%505,7801.4%Computer and TechnologyNVMINova$31,125,120$577,920 ▲1.9%113,1001.4%Computer and TechnologyFRSHFreshworks$30,577,726$4,805,493 ▲18.6%2,050,8201.3%Computer and TechnologyWaystar Holding Corp.$30,447,333$1,305,388 ▲4.5%744,9801.3%COMFLSFlowserve$27,335,729$470,522 ▲1.8%522,1721.2%IndustrialsQTWOQ2$27,329,216$4,587,782 ▲20.2%292,0101.2%Computer and TechnologyCLHClean Harbors$27,117,414$1,613,636 ▲6.3%117,3001.2%Business ServicesLRNStride$26,395,542$3,702,345 ▼-12.3%181,8001.1%Consumer DiscretionaryMTSIMACOM Technology Solutions$25,723,421$7,594,370 ▼-22.8%179,5201.1%Computer and TechnologyLITELumentum$25,575,893$25,575,893 ▲New Holding269,0501.1%Computer and TechnologyFNFabrinet$25,401,416$471,488 ▲1.9%86,2001.1%Computer and TechnologyLTHLife Time Group$24,637,059$464,049 ▲1.9%812,3001.1%Consumer DiscretionaryAMSCAmerican Superconductor$24,516,2580.0%668,2001.1%Computer and TechnologyOSISOSI Systems$24,509,740$1,933,796 ▲8.6%109,0001.1%Computer and TechnologyCOOPMr. Cooper Group$23,246,918$1,298,127 ▲5.9%155,8001.0%FinanceCRSCarpenter Technology$22,914,918$414,570 ▲1.8%82,9111.0%Basic MaterialsBOXBOX$22,344,446$1,941,539 ▲9.5%653,9201.0%Computer and TechnologyCVLTCommVault Systems$21,948,147$3,294,837 ▲17.7%125,9001.0%Computer and TechnologyMRCYMercury Systems$21,463,210$743,268 ▼-3.3%398,5000.9%AerospacePEGAPegasystems$21,099,874$10,522,872 ▲99.5%389,8000.9%Computer and TechnologyPSNParsons$20,393,446$524,639 ▼-2.5%284,1500.9%Business ServicesICUIICU Medical$19,940,114$634,320 ▼-3.1%150,8900.9%MedicalMMSIMerit Medical Systems$19,893,479$397,290 ▲2.0%212,8100.9%MedicalVCYTVeracyte$19,637,025$1,158,506 ▼-5.6%726,4900.9%MedicalACAArcosa$19,214,936$1,612,806 ▲9.2%221,6000.8%ConstructionSFMSprouts Farmers Market$18,867,744$1,004,304 ▲5.6%114,6000.8%Retail/WholesaleBrightSpring Health Services$18,301,122$18,301,122 ▲New Holding775,8000.8%COMPrimo Brands Corp.$18,106,706$624,982 ▼-3.3%611,3000.8%COMCAMTCamtek$18,060,325$1,150,016 ▲6.8%213,5800.8%Computer and TechnologyDigital Ocean Holdings, Inc.$18,047,635$1,297,195 ▲7.7%631,9200.8%COMFSSFederal Signal$17,718,930$6,739,579 ▼-27.6%166,5000.8%Multi-Sector ConglomeratesTPCTutor Perini$17,673,484$1,946,048 ▲12.4%377,8000.8%ConstructionZeta Global Holdings Corp.$17,602,836$10,948,952 ▼-38.3%1,136,4000.8%COMCARGCarGurus$17,350,848$615,848 ▲3.7%518,4000.8%Auto/Tires/TrucksSIMOSilicon Motion Technology$17,334,202$3,570,575 ▲25.9%230,6000.8%Computer and TechnologyGPSGAP$17,236,443$595,413 ▼-3.3%790,3000.7%Consumer CyclicalLOPEGrand Canyon Education$17,085,600$321,300 ▲1.9%90,4000.7%Consumer DiscretionaryQRVOQorvo$17,007,473$17,007,473 ▲New Holding200,3000.7%Computer and TechnologyAIZAssurant$16,391,670$394,980 ▲2.5%83,0000.7%FinanceBROSDutch Bros$16,272,060$1,299,030 ▲8.7%238,0000.7%Retail/WholesaleAIRAAR$16,268,835$1,135,035 ▲7.5%236,5000.7%AerospaceIMAXIMAX$16,205,6160.0%579,6000.7%Consumer DiscretionaryBLBDBlue Bird$16,115,944$625,820 ▲4.0%373,4000.7%Auto/Tires/TrucksRSIRush Street Interactive$15,938,530$1,159,220 ▲7.8%1,069,7000.7%Consumer DiscretionarySITMSiTime$15,660,528$15,660,528 ▲New Holding73,4960.7%Computer and TechnologyURBNUrban Outfitters$15,385,734$15,385,734 ▲New Holding212,1000.7%Retail/WholesaleBRBRBellRing Brands$15,305,106$527,163 ▼-3.3%264,2000.7%Consumer StaplesACIWACI Worldwide$15,223,848$2,506,686 ▼-14.1%331,6020.7%Computer and TechnologyAEISAdvanced Energy Industries$15,197,750$15,197,750 ▲New Holding114,7000.7%Computer and TechnologyWGSGeneDx$15,037,299$3,637,014 ▲31.9%162,9000.7%MedicalPRIMPrimoris Services$14,995,656$3,935,970 ▼-20.8%192,4000.7%ConstructionFIVNFive9$14,720,232$5,012,664 ▲51.6%555,9000.6%Computer and TechnologyBMIBadger Meter$14,674,955$14,674,955 ▲New Holding59,9100.6%Computer and TechnologyEverus Construction Group$14,618,253$14,618,253 ▲New Holding230,1000.6%COMAGXArgan$14,505,505$220 ▲0.0%65,7910.6%ConstructionUCTTUltra Clean$13,842,1810.0%613,3000.6%Computer and TechnologyEYENational Vision$13,688,649$13,688,649 ▲New Holding594,9000.6%Consumer StaplesGGenpact$13,471,461$9,572,175 ▼-41.5%306,1000.6%Computer and TechnologyFCFSFirstCash$13,216,692$3,743,378 ▲39.5%97,8000.6%Business ServicesSPXCSPX Technologies$12,894,592$251,520 ▲2.0%76,9000.6%Business ServicesIRTCiRhythm Technologies$12,501,552$12,501,552 ▲New Holding81,2000.5%MedicalOSCROscar Health$12,401,539$216,544 ▲1.8%578,4300.5%FinanceMGNIMagnite$12,397,680$7,436,196 ▲149.9%514,0000.5%Computer and TechnologyMTDRMatador Resources$12,116,108$3,750,792 ▲44.8%253,9000.5%EnergyQLYSQualys$12,001,080$1,700,153 ▲16.5%84,0000.5%Computer and TechnologyHQYHealthEquity$11,923,783$829,699 ▲7.5%113,8200.5%MedicalLMBLimbach$11,726,370$3,796,710 ▼-24.5%83,7000.5%ConstructionDIODDiodes$11,567,043$11,567,043 ▲New Holding218,7000.5%Computer and TechnologyRemitly Global, Inc.$11,158,765$11,158,765 ▲New Holding594,5000.5%COMCBSHCommerce Bancshares$10,997,251$565,747 ▲5.4%176,8900.5%FinanceOSPNOnespan$10,600,654$1,482,072 ▲16.3%635,1500.5%Computer and TechnologySOISolaris Oilfield Infrastructure$10,379,601$195,201 ▲1.9%366,9000.5%EnergyCPRXCatalyst Pharmaceuticals$10,159,940$13,020 ▲0.1%468,2000.4%MedicalABCBAmeris Bancorp$10,119,080$795,810 ▲8.5%156,4000.4%FinanceBFAMBright Horizons Family Solutions$9,838,258$6,216,577 ▼-38.7%79,6040.4%Business ServicesLMATLeMaitre Vascular$9,523,008$1,046,513 ▲12.3%114,6660.4%MedicalEZPWEZCORP$9,514,7400.0%685,5000.4%FinanceOSWOneSpaWorld$9,489,5060.0%465,4000.4%Consumer DiscretionaryHALOHalozyme Therapeutics$9,478,044$9,478,044 ▲New Holding182,2000.4%MedicalBPMCBlueprint Medicines$9,293,050$320,450 ▼-3.3%72,5000.4%MedicalNOVNOV$9,076,386$171,534 ▲1.9%730,2000.4%EnergyANIPANI Pharmaceuticals$9,063,225$4,782,825 ▲111.7%138,9000.4%MedicalADUSAddus HomeCare$9,007,858$2,107,977 ▲30.6%78,2000.4%MedicalVRNSVaronis Systems$8,962,450$167,475 ▲1.9%176,6000.4%Computer and TechnologyTILEInterface$8,901,5290.0%425,3000.4%Consumer DiscretionaryEXLSExlService$8,512,776$157,644 ▲1.9%194,4000.4%Computer and TechnologyMGYMagnolia Oil & Gas$8,459,224$159,608 ▲1.9%376,3000.4%EnergyKiniksa Pharmaceuticals, Ltd.$8,444,884$1,881,560 ▲28.7%305,2000.4%COMCOCOVita Coco$8,303,0000.0%230,0000.4%Consumer StaplesFAROFARO Technologies$8,221,824$1,062,864 ▲14.8%187,2000.4%Computer and TechnologyShowing largest 100 holdings. View all holdings. More Institutional Buying and Selling Information SEC Filings and Trading Data SEC Filings 13F Filings Top 13F Buys Top 13F Sells Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. 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