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William Blair Investment Management, LLC

Q2 2025 Holdings

Filed 2025-07-29 | 417 holdings | $37.7B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Microsoft Corp(MSFT)COM594918104$2.0B3,981,7215.3%
Nvidia Corporation(NVDA)COM67066G104$1.9B12,272,3935.1%
Taiwan Semiconductor MFG LTD(TSM)SPONSORED ADS874039100$1.5B6,622,2554.0%
Amazon COM Inc(AMZN)COM023135106$1.2B5,400,3533.1%
Apple Inc(AAPL)COM037833100$1.1B5,253,8412.9%
Meta Platforms Inc(META)CL A30303M102$1.1B1,429,1212.8%
Broadcom Inc(AVGO)COM11135F101$815.7M2,959,1722.2%
Mastercard Incorporated(MA)CL A57636Q104$685.7M1,220,2651.8%
Mercadolibre Inc(MELI)COM58733R102$623.6M238,5991.7%
SEA LTD(SE)SPONSORD ADS81141R100$574.0M3,588,1471.5%
Carlyle Group Inc(CG)COM14316J108$511.4M9,949,4551.4%
Transunion(TRU)COM89400J107$417.0M4,739,1031.1%
Intuit(INTU)COM461202103$407.3M517,1311.1%
Costco Whsl Corp New(COST)COM22160K105$372.7M376,4851.0%
Idexx Labs Inc(IDXX)COM45168D104$367.4M685,0881.0%
Servicenow Inc(NOW)COM81762P102$360.4M350,5691.0%
Chipotle Mexican Grill Inc(CMG)COM169656105$352.4M6,276,4240.9%
Talen Energy Corp(TLN)COM87422Q109$320.4M1,101,7820.9%
Doximity Inc(DOCS)CL A26622P107$320.2M5,219,3940.8%
Oreilly Automotive Inc(ORLY)COM67103H107$319.4M3,544,0830.8%
Primo Brands Corporation(PRMB)CLASS A COM SHS741623102$314.1M10,602,6830.8%
Datadog Inc(DDOG)CL A COM23804L103$291.6M2,171,0760.8%
Cameco Corp(CCJ)COM13321L108$287.2M3,869,2910.8%
Spotify Technology S A(SPOT)SHSL8681T102$285.3M371,7860.8%
Pure Storage Inc(PSTG)CL A74624M102$283.7M4,926,8360.8%
Linde PLC(LIN)SHSG54950103$283.4M604,0260.8%
Agilent Technologies Inc(A)COM00846U101$261.3M2,214,4870.7%
Uber Technologies Inc(UBER)COM90353T100$256.8M2,752,5380.7%
Mercury SYS Inc(MRCY)COM589378108$252.9M4,695,6830.7%
Live Nation Entertainment in(LYV)COM538034109$245.8M1,625,0150.7%
Confluent Inc(CFLT)CLASS A COM20717M103$240.3M9,639,1020.6%
Everest Group LTD(EG)COMG3223R108$233.1M685,7690.6%
The Baldwin Insurance GRP in(BWIN)COM CL A05589G102$231.3M5,402,7500.6%
Dynatrace Inc(DT)COM NEW268150109$229.9M4,163,3610.6%
Nvent Electric PLC(NVT)SHSG6700G107$228.1M3,113,9360.6%
Ciena Corp(CIEN)COM NEW171779309$220.3M2,708,5400.6%
BWX Technologies Inc(BWXT)COM05605H100$218.6M1,517,3560.6%
Sharkninja Inc(SN)COM SHSG8068L108$217.0M2,192,0660.6%
Waystar Hldg Corp(WAY)COM946784105$214.1M5,239,3650.6%
Unitedhealth Group Inc(UNH)COM91324P102$213.4M684,1410.6%
Tyler Technologies Inc(TYL)COM902252105$212.5M358,4740.6%
Copart Inc(CPRT)COM217204106$211.7M4,314,9450.6%
Ferrari N V(RACE)COMN3167Y103$211.4M430,8280.6%
Casella Waste SYS Inc(CWST)CL A147448104$207.7M1,800,1550.6%
Salesforce Inc(CRM)COM79466L302$206.9M758,7660.5%
Itau Unibanco Hldg S A(BVXB)SPON ADR REP PFD465562106$198.9M29,278,4620.5%
Monster Beverage Corp New(MNST)COM61174X109$196.9M3,143,8730.5%
Clearwater Analytics Hldgs I(CWAN)CL A185123106$193.3M8,812,8760.5%
Flutter Entmt PLC(FLUT)SHSG3643J108$191.6M670,3980.5%
Planet Fitness Inc(PLNT)CL A72703H101$189.6M1,738,9440.5%
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