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William Blair Investment Management, LLC

Q3 2025 Holdings

Filed 2025-11-12 | 414 holdings | $38.7B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Nvidia Corporation(NVDA)COM67066G104$2.2B11,569,0015.6%
Microsoft Corp(MSFT)COM594918104$2.0B3,836,8265.1%
Taiwan Semiconductor MFG LTD(TSM)SPONSORED ADS874039100$1.8B6,422,1584.6%
Apple Inc(AAPL)COM037833100$1.4B5,620,4533.7%
Amazon COM Inc(AMZN)COM023135106$970.8M4,421,1612.5%
Broadcom Inc(AVGO)COM11135F101$927.4M2,811,1242.4%
Meta Platforms Inc(META)CL A30303M102$871.1M1,186,1272.3%
Mastercard Incorporated(MA)CL A57636Q104$628.7M1,105,3451.6%
SEA LTD(SE)SPONSORD ADS81141R100$619.0M3,463,5321.6%
Alphabet Inc(GOOGL)CAP STK CL A02079K305$604.3M2,486,0021.6%
Carlyle Group Inc(CG)COM14316J108$548.6M8,748,9751.4%
Mercadolibre Inc(MELI)COM58733R102$537.0M229,8041.4%
Doximity Inc(DOCS)CL A26622P107$426.4M5,829,1691.1%
Transunion(TRU)COM89400J107$392.0M4,678,8091.0%
Pure Storage Inc(PSTG)CL A74624M102$391.1M4,666,8921.0%
Ciena Corp(CIEN)COM NEW171779309$355.6M2,440,8880.9%
Servicenow Inc(NOW)COM81762P102$344.2M374,0100.9%
Intuit(INTU)COM461202103$332.7M487,2320.9%
Oreilly Automotive Inc(ORLY)COM67103H107$314.3M2,915,6740.8%
Oracle Corp(ORCL)COM68389X105$311.5M1,107,5860.8%
NU Hldgs LTD(NU)ORD SHS CL AG6683N103$311.4M19,449,4240.8%
Costco Whsl Corp New(COST)COM22160K105$298.7M322,7400.8%
Idexx Labs Inc(IDXX)COM45168D104$293.3M459,0190.8%
Talen Energy Corp(TLN)COM87422Q109$289.1M679,6970.7%
Agilent Technologies Inc(A)COM00846U101$275.2M2,144,0860.7%
Unitedhealth Group Inc(UNH)COM91324P102$265.4M768,5350.7%
Primo Brands Corporation(PRMB)CLASS A COM SHS741623102$261.5M11,834,3840.7%
Uber Technologies Inc(UBER)COM90353T100$259.1M2,644,8740.7%
Onto Innovation Inc(ONTO)COM683344105$256.1M1,981,7610.7%
Linde PLC(LIN)SHSG54950103$255.3M537,4110.7%
LAM Research Corp(LRCX)COM NEW512807306$246.9M1,843,6160.6%
Tyler Technologies Inc(TYL)COM902252105$240.2M459,1140.6%
Nvent Electric PLC(NVT)SHSG6700G107$236.8M2,400,3790.6%
BWX Technologies Inc(BWXT)COM05605H100$231.4M1,255,3100.6%
Live Nation Entertainment in(LYV)COM538034109$228.8M1,400,1740.6%
Everest Group LTD(EG)COMG3223R108$228.2M651,4740.6%
Stride Inc(LRN)COM86333M108$225.1M1,511,0800.6%
Insmed Inc(INSM)COM PAR $.01457669307$223.9M1,555,0570.6%
Veeva SYS Inc(VEEV)CL A COM922475108$223.0M748,6440.6%
Cameco Corp(CCJ)COM13321L108$221.2M2,638,0330.6%
Credicorp LTD(BAP)COMG2519Y108$218.4M820,0730.6%
Itau Unibanco Hldg S A(BVXB)SPON ADR REP PFD465562106$216.3M29,470,1950.6%
Royal BK CDA(RY)COM780087102$211.2M1,433,4520.5%
Copart Inc(CPRT)COM217204106$209.2M4,651,4740.5%
Western Alliance Bancorp(WAL)COM957638109$207.7M2,394,7220.5%
Brinks Co(BCO)COM109696104$206.8M1,769,8670.5%
Monster Beverage Corp New(MNST)COM61174X109$201.9M2,999,7180.5%
Mueller Inds Inc(MLI)COM624756102$201.7M1,994,8750.5%
Waystar Hldg Corp(WAY)COM946784105$199.6M5,263,1870.5%
Spotify Technology S A(SPOT)SHSL8681T102$197.1M282,3240.5%
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