Gagnon Securities LLC Top Holdings and 13F Report (2026) About Gagnon Securities LLCInvestment ActivityGagnon Securities LLC has $433.21 million in total holdings as of March 31, 2026.Gagnon Securities LLC owns shares of 85 different stocks, but just 26 companies or ETFs make up 80% of its holdings.Approximately 9.69% of the portfolio was purchased this quarter.About 14.74% of the portfolio was sold this quarter.This quarter, Gagnon Securities LLC has purchased 86 new stocks and bought additional shares in 38 stocks.Gagnon Securities LLC sold shares of 36 stocks and completely divested from 7 stocks this quarter.Largest Holdings The Ensign Group $36,203,707CareDx $30,586,140Ameresco $21,421,607GeneDx $19,468,229Enterprise Products Partners $19,459,485 Largest New Holdings this Quarter 46436E718 - iShares 0-3 Month Treasury Bond ETF $9,331,383 Holding433313103 - HINGE HEALTH INC $4,791,080 Holding256163106 - Docusign $1,006,609 Holding26875P101 - EOG Resources $267,599 Holding72703X106 - Planet Labs PBC $233,438 Holding Largest Purchases this Quarter iShares 0-3 Month Treasury Bond ETF 92,702 shares (about $9.33M)HINGE HEALTH INC 124,250 shares (about $4.79M)Freshworks 501,356 shares (about $4.03M)QuidelOrtho 244,148 shares (about $4.01M)GeneDx 49,615 shares (about $3.19M) Largest Sales this Quarter NVIDIA 16,862 shares (about $2.94M)MarineMax 101,443 shares (about $2.75M)Alpha and Omega Semiconductor 47,768 shares (about $1.06M)Whitecap Resources 50,704 shares (about $570.42K)Enterprise Products Partners 13,344 shares (about $504.94K) Sector Allocation Over TimeMap of 500 Largest Holdings ofGagnon Securities LLC Selling Neutral Buying Latest 13F Holdings and Changes Since Previous Quarterly FilingIssuer NameHoldings ValueApproximate Purchase/SaleChange in SharesShares Held% of PortfolioSectorENSGThe Ensign Group$36,203,707$176,917 â–¼-0.5%179,6718.4%MedicalCDNACareDx$30,586,140$225,958 â–¼-0.7%1,761,8747.1%MedicalAMRCAmeresco$21,421,607$183,065 â–²0.9%840,0634.9%EnergyWGSGeneDx$19,468,229$3,186,275 â–²19.6%303,1494.5%MedicalEPDEnterprise Products Partners$19,459,485$504,937 â–¼-2.5%514,2574.5%EnergyNVGSNavigator$17,138,577$478,939 â–²2.9%886,6314.0%TransportationEQIXEquinix$16,616,048$187,226 â–¼-1.1%16,9513.8%FinanceGNRCGenerac$14,632,756$132,824 â–¼-0.9%74,9133.4%IndustrialsISRGIntuitive Surgical$14,576,048$82,056 â–¼-0.6%31,6193.4%MedicalPCRXPacira BioSciences$13,955,726$2,628,357 â–²23.2%617,5103.2%MedicalFRSHFreshworks$13,902,877$4,025,889 â–²40.8%1,731,3673.2%Computer and TechnologyKMXCarMax$12,877,284$431,517 â–¼-3.2%309,6993.0%Retail/WholesalePROFProfound Medical$12,599,219$1,704 â–²0.0%1,944,3242.9%MedicalCAKECheesecake Factory$12,321,378$84,644 â–¼-0.7%225,0482.8%Retail/WholesaleBLBlackLine$10,967,688$629,962 â–²6.1%296,4242.5%Computer and TechnologyBLFSBioLife Solutions$10,236,649$41,117 â–²0.4%536,5122.4%MedicalFIVNFive9$9,436,711$55,553 â–¼-0.6%622,0642.2%Computer and TechnologySGOViShares 0-3 Month Treasury Bond ETF$9,331,383$9,331,383 â–²New Holding92,7022.2%ETFCARGCarGurus$9,245,392$23,903 â–²0.3%271,5242.1%Auto/Tires/TrucksAMPLAmplitude$7,228,082$2,461,788 â–²51.6%1,059,8361.7%Business ServicesTMCITreace Medical Concepts$6,970,527$2,802,357 â–²67.2%5,201,8861.6%MedicalQDELQuidelOrtho$6,626,630$4,011,352 â–²153.4%403,3251.5%MedicalASPNAspen Aerogels$6,367,530$2,491,822 â–²64.3%1,861,8511.5%ConstructionPRLBProto Labs$6,322,891$37,576 â–¼-0.6%110,8891.5%IndustrialsCELCCelcuity$6,088,456$6,734 â–¼-0.1%53,3421.4%MedicalHZOMarineMax$5,969,707$2,745,048 â–¼-31.5%220,6101.4%Retail/WholesaleVERXVertex$5,567,136$1,231,531 â–²28.4%468,2201.3%Computer and TechnologyOSUROraSure Technologies$5,143,173$433,827 â–²9.2%1,714,3911.2%MedicalCMGChipotle Mexican Grill$5,052,746$27,977 â–²0.6%157,8491.2%Retail/WholesaleSPGYFWhitecap Resources$4,898,472$570,422 â–¼-10.4%435,4181.1%EnergyCARETRUST REIT INC$4,876,136$916 â–¼0.0%133,0461.1%COMHINGE HEALTH INC$4,791,080$4,791,080 â–²New Holding124,2501.1%CL ADVDoubleVerify$4,640,389$30,419 â–¼-0.7%488,4621.1%Computer and TechnologyPNTGThe Pennant Group$4,190,512$1,280 â–¼0.0%137,4841.0%MedicalKLTRKaltura$4,000,302$509,437 â–²14.6%3,278,9360.9%Computer and TechnologyICUIICU Medical$3,841,308$86,530 â–²2.3%29,7430.9%MedicalAOSLAlpha and Omega Semiconductor$3,720,088$1,058,539 â–¼-22.2%167,8740.9%Computer and TechnologyPTENPatterson-UTI Energy$3,407,616$412,959 â–¼-10.8%314,6460.8%EnergyMCHPMicrochip Technology$1,734,015$20,934 â–¼-1.2%26,8380.4%Computer and TechnologySAMBoston Beer$1,667,866$203,674 â–²13.9%7,2390.4%Consumer StaplesGNLGlobal Net Lease$1,592,370$3,604 â–¼-0.2%170,1250.4%FinanceGNTXGentex$1,243,995$27,553 â–²2.3%56,9330.3%Auto/Tires/TrucksPFEPfizer$1,242,821$2,611 â–¼-0.2%44,2600.3%MedicalCNFINANCE HLDGS LTD$1,227,498$11,398 â–¼-0.9%313,9380.3%SPON ADSNCNOnCino$1,191,210$90,270 â–²8.2%79,5200.3%Computer and TechnologyDOCUDocusign$1,006,609$1,006,609 â–²New Holding21,2320.2%Computer and TechnologyNTDOYNintendo$995,970$8,946 â–¼-0.9%69,6970.2%Consumer DiscretionaryFLAGSTAR BANK NATIONAL ASSOC$983,944$2,055 â–¼-0.2%74,7110.2%COM NEWDVNDevon Energy$959,401$2,264 â–¼-0.2%19,0660.2%EnergySLGSL Green Realty$955,342$887 â–²0.1%25,8620.2%FinanceTAT&T$930,405$32,846 â–¼-3.4%32,0940.2%Computer and TechnologyMTSIMACOM Technology Solutions$814,997$83,276 â–²11.4%3,6700.2%Computer and TechnologyGOOGLAlphabet$735,0030.0%2,5560.2%Computer and TechnologyMRVLMarvell Technology$676,017$49,327 â–²7.9%6,8250.2%Computer and TechnologyNVDANVIDIA$637,432$2,940,733 â–¼-82.2%3,6550.1%Computer and TechnologyGOOGAlphabet$554,787$1,434 â–¼-0.3%1,9340.1%Computer and TechnologyTECHBio-Techne$516,277$13,849 â–²2.8%9,8790.1%MedicalVIAVViavi Solutions$482,926$315,528 â–¼-39.5%14,5110.1%Computer and TechnologyMETAMeta Platforms$480,0170.0%8390.1%Computer and TechnologyCGNXCognex$479,122$392 â–²0.1%9,7800.1%Computer and TechnologySHOPIFY INC$466,414$29,418 â–²6.7%3,9320.1%CL A SUB VTG SHSONTOOnto Innovation$459,7670.0%2,2420.1%Computer and TechnologyCESDFCES Energy Solutions$439,951$162,920 â–¼-27.0%33,3500.1%EnergyGAMBGambling.com Group$425,624$16,017 â–²3.9%109,6970.1%Business ServicesMRKMerck & Co., Inc.$383,966$81,196 â–¼-17.5%3,1920.1%MedicalLTHLife Time Group$365,037$323 â–²0.1%13,5500.1%Consumer DiscretionarySBUXStarbucks$364,721$128,203 â–¼-26.0%4,0710.1%Retail/WholesaleMUMicron Technology$363,8540.0%1,0770.1%Computer and TechnologyHIMXHimax Technologies$352,364$72,192 â–¼-17.0%44,7730.1%Computer and TechnologyCVLTCommVault Systems$340,847$149,783 â–²78.4%4,3760.1%Computer and TechnologyAKAMAkamai Technologies$332,606$43,184 â–²14.9%2,8960.1%Computer and TechnologyRNGRingCentral$313,214$10,153 â–²3.4%8,4220.1%Computer and TechnologyREIN THERAPEUTICS INC$311,376$910 â–¼-0.3%239,5200.1%COM NEWETSY INC$288,535$4,048 â–²1.4%5,7730.1%COMEOGEOG Resources$267,599$267,599 â–²New Holding1,8510.1%EnergyAPPSDigital Turbine$235,6960.0%81,8390.1%Computer and TechnologyRMBSRambus$234,174$946 â–²0.4%2,7220.1%Computer and TechnologyPLPlanet Labs PBC$233,438$233,438 â–²New Holding8,3520.1%Computer and TechnologyBXBlackstone$223,081$53,470 â–²31.5%1,9400.1%FinanceELECTROVAYA INC$205,330$205,330 â–²New Holding26,2570.0%COM NewMSFTMicrosoft$201,743$13,696 â–²7.3%5450.0%Computer and TechnologyACTINIUM PHARMACEUTICALS INC$200,354$505 â–¼-0.3%201,3000.0%COMSVVSavers Value Village$187,101$84,697 â–²82.7%25,1480.0%Consumer DiscretionaryWEAVWeave Communications$158,096$167,562 â–¼-51.5%34,2200.0%Computer and TechnologyREDHILL BIOPHARMA LTD$65,879$1,716 â–²2.7%88,4050.0%SPONSORED ADRALAir Lease$0$31,919,548 â–¼-100.0%00.0%TransportationEXASExact Sciences$0$17,002,566 â–¼-100.0%00.0%MedicalTPRTapestry$0$2,740,323 â–¼-100.0%00.0%Retail/WholesaleXOMExxonMobil$0$864,041 â–¼-100.0%00.0%EnergyPYPLPayPal$0$385,074 â–¼-100.0%00.0%Business ServicesPETSPetMed Express$0$135,450 â–¼-100.0%00.0%Retail/WholesaleGDRXGoodRx$0$119,560 â–¼-100.0%00.0%MedicalShowing 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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