Oberweis Asset Management Inc/ Top Holdings and 13F Report (2025) About Oberweis Asset Management Inc/Investment ActivityOberweis Asset Management Inc/ has $2.12 billion in total holdings as of December 31, 2024.Oberweis Asset Management Inc/ owns shares of 196 different stocks, but just 97 companies or ETFs make up 80% of its holdings.Approximately 24.05% of the portfolio was purchased this quarter.About 17.29% of the portfolio was sold this quarter.This quarter, Oberweis Asset Management Inc/ has purchased 206 new stocks and bought additional shares in 115 stocks.Oberweis Asset Management Inc/ sold shares of 26 stocks and completely divested from 41 stocks this quarter.Largest Holdings Credo Technology Group $64,494,313ADMA Biologics $57,324,904SharkNinja $48,610,874Zeta Global Holdings Corp. $33,102,320SkyWest $31,956,490 Largest New Holdings this Quarter Dorman Products $23,282,726 HoldingRambus $21,640,884 HoldingArcosa $19,638,220 HoldingCarGurus $18,270,000 HoldingGAP $17,167,195 Holding Largest Purchases this Quarter Dorman Products 179,720 shares (about $23.28M)Rambus 409,400 shares (about $21.64M)Arcosa 203,000 shares (about $19.64M)CarGurus 500,000 shares (about $18.27M)GAP 726,500 shares (about $17.17M) Largest Sales this Quarter Applied Optoelectronics 370,100 shares (about $13.64M)Silicon Motion Technology 119,400 shares (about $6.45M)ICF International 47,329 shares (about $5.64M)Weatherford International 60,826 shares (about $4.36M)RxSight 107,600 shares (about $3.70M) 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$64,494,313$8,823,329 ▲15.8%959,5943.0%Computer and TechnologyADMAADMA Biologics$57,324,904$7,468,482 ▲15.0%3,342,5602.7%MedicalSNSharkNinja$48,610,874$3,612,056 ▲8.0%499,2902.3%Retail/WholesaleZeta Global Holdings Corp.$33,102,320$4,244,021 ▲14.7%1,840,0401.6%COMSKYWSkyWest$31,956,490$4,155,395 ▲14.9%319,1501.5%TransportationEHCEncompass Health$31,475,534$3,160,307 ▲11.2%340,8291.5%MedicalDOCSDoximity$30,597,809$5,872,900 ▲23.8%573,1001.4%MedicalVCYTVeracyte$29,649,312$1,298,880 ▲4.6%748,7201.4%MedicalFLSFlowserve$26,953,289$3,372,282 ▲14.3%468,5901.3%Industrial ProductsFTDRFrontdoor$25,558,225$3,066,987 ▲13.6%467,5001.2%ConstructionPSNParsons$24,674,108$23,063 ▼-0.1%267,4701.2%Business ServicesICUIICU Medical$24,312,036$4,062,351 ▲20.1%156,6801.1%MedicalCLHClean Harbors$23,573,240$676,612 ▼-2.8%102,4301.1%Business ServicesDORMDorman Products$23,282,726$23,282,726 ▲New Holding179,7201.1%Auto/Tires/TrucksMTSIMACOM Technology Solutions$23,262,984$3,373,763 ▲17.0%179,0701.1%Computer and TechnologyGGenpact$22,488,620$3,487,540 ▲18.4%523,6001.1%Business ServicesUCTTUltra Clean$22,048,135$6,226,540 ▲39.4%613,3001.0%Computer and TechnologyANFAbercrombie & Fitch$22,016,931$2,810,036 ▲14.6%147,3001.0%Retail/WholesaleNVMINova$21,861,450$9,571,770 ▲77.9%111,0001.0%Computer and TechnologyRMBSRambus$21,640,884$21,640,884 ▲New Holding409,4001.0%Computer and TechnologyITRIItron$21,619,364$1,324,676 ▲6.5%199,1101.0%Computer and TechnologyLRNStride$21,544,689$9,613,525 ▲80.6%207,3001.0%Consumer DiscretionaryONTOOnto Innovation$21,539,5970.0%129,2351.0%Computer and TechnologyFSSFederal Signal$21,233,994$3,704,839 ▲21.1%229,8301.0%Multi-Sector ConglomeratesLIVNLivaNova$20,401,176$7,217,414 ▲54.7%440,5351.0%MedicalHIMSHims & Hers Health$20,398,248$2,418,000 ▼-10.6%843,6001.0%MedicalMMSIMerit Medical Systems$20,191,267$640,286 ▲3.3%208,7601.0%MedicalWFRDWeatherford International$19,761,886$4,356,973 ▼-18.1%275,8880.9%Oils/EnergyACAArcosa$19,638,220$19,638,220 ▲New Holding203,0000.9%ConstructionPrimo Brands Corp.$19,458,948$5,957,072 ▲44.1%632,4000.9%COMBRBRBellRing Brands$19,068,554$3,548,514 ▲22.9%253,1000.9%MedicalPRIMPrimoris Services$18,557,560$2,521,200 ▲15.7%242,9000.9%ConstructionAAOIApplied Optoelectronics$18,275,741$13,641,886 ▼-42.7%495,8150.9%Computer and TechnologyCARGCarGurus$18,270,000$18,270,000 ▲New Holding500,0000.9%Auto/Tires/TrucksTNDMTandem Diabetes Care$18,247,732$2,108,971 ▲13.1%506,6000.9%MedicalCCSCentury Communities$18,193,280$4,056,808 ▲28.7%248,0000.9%ConstructionBOXBOX$17,648,600$1,153,400 ▲7.0%558,5000.8%Computer and TechnologyHAEHaemonetics$17,561,754$3,679,520 ▲26.5%224,9200.8%MedicalELFe.l.f. Beauty$17,288,235$12,467,115 ▲258.6%137,7000.8%Consumer StaplesACIWACI Worldwide$17,286,653$6,608,143 ▲61.9%333,0120.8%Computer and TechnologyAIZAssurant$17,270,820$2,686,572 ▲18.4%81,0000.8%FinanceGPSGAP$17,167,195$17,167,195 ▲New Holding726,5000.8%Consumer CyclicalOSISOSI Systems$16,809,972$5,223,816 ▲45.1%100,4000.8%Computer and TechnologyDECKDeckers Outdoor$16,722,431$6,194,245 ▲58.8%82,3400.8%Retail/WholesaleAMSCAmerican Superconductor$16,364,1720.0%664,4000.8%Computer and TechnologyYOUClear Secure$16,234,416$799,200 ▲5.2%609,4000.8%Computer and TechnologyCAMTCamtek$16,152,385$1,760,786 ▲12.2%199,9800.8%Computer and TechnologyAVAVAeroVironment$15,807,581$1,535,822 ▲10.8%102,7200.7%AerospaceCLBTCellebrite DI$15,264,807$178,443 ▲1.2%692,9100.7%Business ServicesFORMFormFactor$14,849,120$294,800 ▲2.0%337,4800.7%Computer and TechnologyIMAXIMAX$14,837,760$3,394,560 ▲29.7%579,6000.7%Consumer DiscretionaryOMCLOmnicell$14,834,064$14,834,064 ▲New Holding333,2000.7%MedicalDigital Ocean Holdings, Inc.$14,503,599$119,245 ▲0.8%425,7000.7%COMBFAMBright Horizons Family Solutions$14,399,858$4,057,110 ▲39.2%129,9040.7%Business ServicesOLEDUniversal Display$14,326,605$26,170 ▼-0.2%97,9930.7%Computer and TechnologyCRSCarpenter Technology$14,160,711$1,052,367 ▲8.0%83,4410.7%Basic MaterialsDLBDolby Laboratories$14,136,100$14,136,100 ▲New Holding181,0000.7%Consumer DiscretionaryCOOPMr. Cooper Group$14,123,071$240,025 ▲1.7%147,1000.7%FinanceFNFabrinet$14,028,344$1,451,208 ▲11.5%63,8000.7%Computer and TechnologyFRPTFreshpet$13,966,773$13,966,773 ▲New Holding94,3000.7%Consumer StaplesCBTCabot$13,952,1680.0%152,8000.7%Basic MaterialsBLBDBlue Bird$13,864,307$2,310,074 ▲20.0%358,9000.7%Auto/Tires/TrucksSFMSprouts Farmers Market$13,787,0950.0%108,5000.6%Retail/WholesaleRSIRush Street Interactive$13,608,868$274,400 ▲2.1%991,9000.6%Consumer DiscretionaryPEGAPegasystems$13,560,600$13,560,600 ▲New Holding145,5000.6%Computer and TechnologyFRSHFreshworks$13,366,122$13,366,122 ▲New Holding826,6000.6%Computer and TechnologyAMBAAmbarella$13,296,872$1,512,992 ▲12.8%182,8000.6%Computer and TechnologyNEONeoGenomics$12,668,176$824,000 ▲7.0%768,7000.6%MedicalSRADSportradar Group$12,639,126$12,639,126 ▲New Holding728,9000.6%Consumer DiscretionarySTRAStrategic Education$12,564,990$2,942,730 ▲30.6%134,5000.6%Consumer DiscretionaryWEAVWeave Communications$12,260,788$2,559,140 ▲26.4%770,1500.6%Computer and TechnologyQTWOQ2$11,725,725$1,701,992 ▲17.0%116,5000.6%Computer and TechnologyTILEInterface$11,690,435$1,709,370 ▲17.1%480,1000.6%Consumer DiscretionaryLOPEGrand Canyon Education$11,662,560$458,640 ▲4.1%71,2000.5%Consumer DiscretionaryBROSDutch Bros$11,471,2200.0%219,0000.5%Retail/WholesaleGDYNGrid Dynamics$11,186,720$2,203,984 ▲24.5%503,0000.5%Computer and TechnologySPXCSPX Technologies$10,972,208$1,979,072 ▲22.0%75,4000.5%Business ServicesICHRIchor$10,883,916$10,883,916 ▲New Holding337,8000.5%Computer and TechnologyCBSHCommerce Bancshares$10,454,995$3,083,722 ▲41.8%167,7900.5%FinanceOSPNOneSpan$10,112,643$3,239,865 ▲47.1%545,4500.5%Computer and TechnologyDuolingo, Inc.$10,051,1300.0%31,0000.5%COMCPRXCatalyst Pharmaceuticals$9,748,377$181,569 ▲1.9%467,1000.5%MedicalUAAUnder Armour$9,548,496$9,548,496 ▲New Holding1,153,2000.5%Consumer DiscretionaryWGSGeneDx$9,492,210$115,290 ▲1.2%123,5000.4%MedicalLMBLimbach$9,477,8320.0%110,8000.4%ConstructionLMATLeMaitre Vascular$9,426,349$147,516 ▲1.6%102,3050.4%MedicalOSWOneSpaWorld$9,261,460$847,740 ▲10.1%465,4000.4%Consumer DiscretionaryCDNACareDx$9,066,514$2,761,269 ▲43.8%423,4710.4%MedicalABCBAmeris Bancorp$9,016,337$1,013,634 ▲12.7%144,1000.4%FinanceAORTArtivion$8,945,811$871,995 ▲10.8%312,9000.4%MedicalFIVEFive Below$8,921,600$8,921,600 ▲New Holding85,0000.4%Retail/WholesalePLYAPlaya Hotels & Resorts$8,919,515$852,610 ▼-8.7%705,1000.4%Consumer DiscretionaryHQYHealthEquity$8,779,425$681,245 ▲8.4%91,5000.4%MedicalPAYOPayoneer Global$8,621,2580.0%858,6910.4%Business ServicesSPSCSPS Commerce$8,573,934$2,189,481 ▲34.3%46,6000.4%Business ServicesCOCOVita Coco$8,544,665$2,428,678 ▲39.7%231,5000.4%Consumer StaplesSIMOSilicon Motion Technology$8,534,495$6,453,570 ▼-43.1%157,9000.4%Computer and TechnologyWaystar Holding Corp.$8,488,710$8,488,710 ▲New Holding231,3000.4%COMEXLSExlService$8,467,704$434,924 ▲5.4%190,8000.4%Business ServicesEZPWEZCORP$8,376,8100.0%685,5000.4%FinanceShowing 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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