Institutional manager

MAIRS & POWER INC

Holds positions in 138 of the S&P 500, worth $7.53bn as reported for the quarter ended 31-mar-2026.

Positions held138of 488 index companies covered

Reported value$7.53bnS&P 500 positions only

Top ten weight56%how concentrated the book is

Filing entities1single filer

Largest positions

The 60 biggest by reported value, of 138 held. The rest are smaller than every one of these.

NvidiaNVDA4.8m$830mInformation Technology MicrosoftMSFT1.9m$719mInformation Technology AmazonAMZN2.6m$542mConsumer Discretionary Alphabet Inc. (Class A)GOOGL1.7m$478mCommunication Services JPMorgan ChaseJPM1.1m$310mFinancials Apple Inc.AAPL1.2m$307mInformation Technology Lilly (Eli)LLY326,306$300mHealth Care Visa Inc.V840,917$254mFinancials Motorola SolutionsMSI540,732$235mInformation Technology WEC Energy GroupWEC1.9m$221mUtilities Alliant EnergyLNT2.9m$207mUtilities EcolabECL761,818$203mMaterials UnitedHealth GroupUNH741,083$201mHealth Care Meta PlatformsMETA324,625$186mCommunication Services FastenalFAST3.9m$182mIndustrials VerizonVZ3.3m$166mCommunication Services Bio-TechneTECH2.8m$144mHealth Care Johnson & JohnsonJNJ577,590$141mHealth Care C.H. RobinsonCHRW848,203$141mIndustrials Sherwin-WilliamsSHW437,760$140mMaterials FiservFISV2.2m$120mFinancials Wells FargoWFC1.4m$109mFinancials Rockwell AutomationROK283,553$102mIndustrials Waste ManagementWM398,240$92mIndustrials Ameriprise FinancialAMP197,047$88mFinancials Palo Alto NetworksPANW532,679$85mInformation Technology Hormel FoodsHRL3.4m$77mConsumer Staples Abbott LaboratoriesABT721,778$74mHealth Care QualcommQCOM478,055$62mInformation Technology 3MMMM351,848$51mIndustrials Home Depot (The)HD153,398$50mConsumer Discretionary Intuitive SurgicalISRG99,885$46mHealth Care American ExpressAXP148,821$45mFinancials Texas InstrumentsTXN231,151$45mInformation Technology Travelers Companies (The)TRV142,414$42mFinancials ZoetisZTS303,116$36mHealth Care Procter & GamblePG243,410$35mConsumer Staples MedtronicMDT401,968$35mHealth Care Xcel EnergyXEL402,263$32mUtilities U.S. BancorpUSB601,518$31mFinancials Automatic Data ProcessingADP124,436$25mIndustrials Charles Schwab CorporationSCHW247,732$23mFinancials Walt Disney Company (The)DIS239,846$23mCommunication Services Target CorporationTGT168,879$20mConsumer Staples GeneracGNRC99,747$19mIndustrials State Street CorporationSTT38,635$19mFinancials Berkshire HathawayBRK.B23,934$15mFinancials Principal Financial GroupPFG163,884$15mFinancials ExxonMobilXOM83,523$14mEnergy Hershey Company (The)HSY64,560$13mConsumer Staples Caterpillar Inc.CAT18,450$13mIndustrials Corning Inc.GLW88,250$12mInformation Technology AbbVieABBV45,317$10mHealth Care SalesforceCRM49,996$9mInformation Technology Emerson ElectricEMR64,752$8mIndustrials Chevron CorporationCVX39,017$8mEnergy Kraft HeinzKHC316,563$7mConsumer Staples SyscoSYY99,279$7mConsumer Staples Merck & Co.MRK50,348$6mHealth Care PentairPNR57,578$5mIndustrials

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.