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William Blair Investment Management, LLC

Q2 2026 Holdings

Filed 2026-08-12 | 403 holdings | $33.3B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Taiwan Semiconductor Manufac(TSM)SPONSORED ADS874039100$2.4B4,936,4087.1%
Nvidia Corporation(NVDA)COM67066G104$1.7B8,599,0215.2%
Alphabet Inc(GOOGL)CAP STK CL A02079K305$1.1B3,191,0123.4%
Apple Inc(AAPL)COM037833100$943.3M3,259,9142.8%
Broadcom Inc(AVGO)COM11135F101$776.7M2,056,1352.3%
Microsoft Corp(MSFT)COM594918104$764.2M2,048,6422.3%
Meta Platforms Inc(META)CL A30303M102$535.2M950,1151.6%
Amazon COM Inc(AMZN)COM023135106$473.6M1,987,0851.4%
Mastercard Incorporated(MA)CL A57636Q104$471.5M918,0051.4%
Advanced Micro Devices Inc(AMD)COM007903107$443.5M763,5171.3%
Applied Matls Inc(AMAT)COM038222105$360.0M497,9461.1%
GE Aerospace(GE)COM NEW369604301$295.5M790,8010.9%
Astrazeneca PLC(AZN)ORDG0593M107$283.2M1,514,7950.9%
Primo Brands Corporation(PRMB)CLASS A COM SHS741623102$279.3M11,426,8230.8%
Everpure Inc(PSTG)CL A74624M102$272.2M3,455,3810.8%
Amphenol Corp(APH)CL A032095101$270.7M1,535,0590.8%
Linde PLC(LIN)SHSG54950103$262.0M504,9530.8%
Onto Innovation Inc(ONTO)COM683344105$251.8M665,3770.8%
Borgwarner Inc(BWA)COM099724106$251.3M3,784,7070.8%
Carlyle Group Inc(CG)COM14316J108$249.1M5,914,9050.7%
Argenx SE(ARGX)SPONSORED ADR04016X101$245.5M264,6170.7%
Mueller Inds Inc(MLI)COM624756102$244.2M1,986,1390.7%
Monster Beverage Corp New(MNST)COM61174X109$244.0M2,538,1360.7%
F5 Inc(FFIV)COM315616102$243.9M586,2710.7%
Credicorp LTD(BAP)COMG2519Y108$243.5M625,1440.7%
Curtiss Wright Corp(CW)COM231561101$240.4M317,3060.7%
Itau Unibanco Hldg S A(BVXB)SPON ADR REP PFD465562106$231.1M28,283,4820.7%
Snowflake Inc(SNOW)COM SHS833445109$229.3M901,0870.7%
Twist Bioscience Corp(TWST)COM90184D100$223.7M2,174,5940.7%
Teva Pharmaceutical Inds LTD(TEVA)SPONSORED ADS881624209$223.4M6,593,2210.7%
Unitedhealth Group Inc(UNH)COM91324P102$217.5M523,3870.7%
Crowdstrike Hldgs Inc(CRWD)CL A22788C105$214.8M281,4090.6%
Regal Rexnord Corporation(RRX)COM758750103$212.3M891,1390.6%
Krystal Biotech Inc(KRYS)COM501147102$211.9M570,1530.6%
Carpenter Technology Corp(CRS)COM144285103$205.2M332,6070.6%
Power Integrations Inc(POWI)COM739276103$199.5M2,382,0070.6%
Nvent Elec PLC(NVT)SHSG6700G107$198.1M1,167,7630.6%
Guardant Health Inc(GH)COM40131M109$196.7M1,311,3200.6%
Halozyme Therapeutics Inc(HALO)COM40637H109$196.5M2,511,0500.6%
Talen Energy Corp(TLN)COM87422Q109$191.2M497,6600.6%
Transunion(TRU)COM89400J107$191.1M2,648,7440.6%
Cameco Corp(CCJ)COM13321L108$189.3M1,858,7350.6%
Sterling Infrastructure Inc(STRL)COM859241101$187.8M223,6970.6%
Costco Wholesale Corporation(COST)COM22160K105$186.5M199,3550.6%
Alignment Healthcare Inc(ALHC)COM01625V104$184.8M7,761,4030.6%
C H Robinson Worldwide in(CHRW)COM NEW12541W209$184.3M978,2970.6%
Seagate Technology Hldngs PL(STX)ORD SHSG7997R103$184.2M190,8470.6%
Diodes Inc(DIOD)COM254543101$184.2M1,682,6860.6%
BWX Technologies Inc(BWXT)COM05605H100$183.2M941,2330.6%
Akamai Technologies Inc(AKAM)COM00971T101$181.5M1,535,4670.5%
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