Institutional manager

DF DENT & CO INC

Holds positions in 149 of the S&P 500, worth $3.47bn as reported for the quarter ended 31-mar-2026.

Positions held149of 488 index companies covered

Reported value$3.47bnS&P 500 positions only

Top ten weight44%how concentrated the book is

Filing entities1single filer

Largest positions

The 60 biggest by reported value, of 149 held. The rest are smaller than every one of these.

Alphabet Inc. (Class A)GOOGL793,558$228mCommunication Services Visa Inc.V618,044$187mFinancials AmazonAMZN796,428$166mConsumer Discretionary Vulcan Materials CompanyVMC543,613$148mMaterials MastercardMA287,119$143mFinancials TransDigm GroupTDG122,753$142mIndustrials EcolabECL518,622$138mMaterials Moody's CorporationMCO295,401$129mFinancials Intuitive SurgicalISRG275,313$127mHealth Care FastenalFAST2.7m$124mIndustrials MicrosoftMSFT293,450$109mInformation Technology Bio-TechneTECH2.0m$107mHealth Care Monolithic Power SystemsMPWR88,549$97mInformation Technology CBRE GroupCBRE657,510$89mReal Estate Danaher CorporationDHR431,292$82mHealth Care Veeva SystemsVEEV461,103$81mHealth Care Cadence Design SystemsCDNS288,044$80mInformation Technology MSCIMSCI121,442$65mFinancials S&P GlobalSPGI152,338$65mFinancials CoStar GroupCSGP1.6m$65mReal Estate BroadcomAVGO195,462$60mInformation Technology Apple Inc.AAPL234,123$59mInformation Technology Tyler TechnologiesTYL169,677$58mInformation Technology Motorola SolutionsMSI128,423$56mInformation Technology UberUBER755,581$54mIndustrials NetflixNFLX529,849$51mCommunication Services VeraltoVLTO528,258$47mIndustrials Thermo Fisher ScientificTMO93,940$46mHealth Care O'Reilly AutomotiveORLY471,882$44mConsumer Discretionary CopartCPRT1.2m$39mIndustrials ServiceNowNOW349,563$37mInformation Technology Sherwin-WilliamsSHW105,986$34mMaterials Old DominionODFL168,508$33mIndustrials West Pharmaceutical ServicesWST120,597$30mHealth Care QualcommQCOM211,130$27mInformation Technology AmphenolAPH213,060$27mInformation Technology PTC Inc.PTC180,589$26mInformation Technology Mettler ToledoMTD19,679$25mHealth Care American TowerAMT131,882$23mReal Estate Idexx LaboratoriesIDXX40,023$22mHealth Care CrowdStrikeCRWD55,996$22mInformation Technology Verisk AnalyticsVRSK107,267$20mIndustrials Procter & GamblePG129,532$19mConsumer Staples Berkshire HathawayBRK.B20,650$19mFinancials Brown & BrownBRO232,798$15mFinancials Microchip TechnologyMCHP230,384$15mInformation Technology CostcoCOST14,536$14mConsumer Staples Johnson & JohnsonJNJ53,623$13mHealth Care Roper TechnologiesROP35,563$13mInformation Technology Stryker CorporationSYK34,830$11mHealth Care SynopsysSNPS26,382$10mInformation Technology JPMorgan ChaseJPM29,669$9mFinancials Capital OneCOF32,367$6mFinancials AbbVieABBV25,819$6mHealth Care T. Rowe PriceTROW57,170$5mFinancials Lowe'sLOW17,099$4mConsumer Discretionary CiscoCSCO50,469$4mInformation Technology Automatic Data ProcessingADP17,232$4mIndustrials IntuitINTU7,697$3mInformation Technology Home Depot (The)HD9,178$3mConsumer Discretionary

What this page is not

Positions in S&P 500 constituents only, from 13F filings, which report US listed, long, US custodied holdings. A manager's real book is larger than this in every case: anything outside the index, outside US custody, held through derivatives, or below its reporting obligation is not here.