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William Blair Investment Management, LLC

Q4 2021 Holdings

Filed 2022-02-14 | 427 holdings | $5.1B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Builders Firstsource Inc(BLDR)COM12008R107$623.4M7,273,12912.2%
Charles RIV Labs Intl Inc(CRL)COM159864107$405.5M1,076,2507.9%
Azenta Inc(AZTA)COM114340102$383.6M3,720,3967.5%
Crown Hldgs Inc(CCK)COM228368106$366.4M3,311,8797.2%
Burlington Stores Inc(BURL)COM122017106$310.6M1,065,6026.1%
Cameco Corp(CCJ)COM13321L108$292.6M13,415,0015.7%
Axon Enterprise Inc(AXON)COM05464C101$285.7M1,819,6565.6%
Bright Horizons FAM SOL in D(BFAM)COM109194100$253.8M2,016,2485.0%
Acadia Healthcare Company in(ACHC)COM00404A109$248.0M4,085,5334.8%
Alarm COM Hldgs Inc(ALRM)COM011642105$243.9M2,875,7454.8%
Adobe Systems Incorporated(ADBE)COM00724F101$194.3M342,6163.8%
Advanced Micro Devices Inc(AMD)COM007903107$185.9M1,291,7613.6%
Costco Whsl Corp New(COST)COM22160K105$175.4M308,9083.4%
Certara Inc(CERT)COM15687V109$157.5M5,540,6783.1%
Chart Inds Inc(GTLS)COM16115Q308$111.2M696,9152.2%
Costar Group Inc(CSGP)COM22160N109$98.3M1,243,4531.9%
Boot Barn Hldgs Inc(BOOT)COM099406100$72.5M589,3641.4%
Autodesk Inc(ADSK)COM052769106$65.1M231,4881.3%
Coupang Inc(CPNG)CL A22266T109$60.5M2,060,1811.2%
Connectone Bancorp Inc(CNOB)COM20786W107$57.5M1,757,8221.1%
Align Technology Inc(ALGN)COM016255101$55.0M83,7461.1%
Casella Waste SYS Inc(CWST)CL A147448104$53.3M623,6471.0%
Codexis Inc(CDXS)COM192005106$51.1M1,634,8371.0%
Cbiz Inc(CBZ)COM124805102$48.2M1,231,7340.9%
Canada Goose Hldgs Inc(GOOS)SHS SUB VTG135086106$47.8M1,288,8450.9%
Century Alum Co(CENX)COM156431108$40.3M2,434,6290.8%
Conduent Inc(CNDT)COM206787103$34.4M6,435,1200.7%
Cracker Barrel Old Ctry Stor(CBRL)COM22410J106$33.9M263,2820.7%
Cadence Design System Inc(CDNS)COM127387108$27.8M149,1100.5%
ACV Auctions Inc(ACVA)COM CL A00091G104$23.4M1,243,4910.5%
ANI Pharmaceuticals Inc(ANIP)COM00182C103$20.8M451,4440.4%
Cryolife Inc(AORT)COM228903100$19.0M935,9990.4%
Axogen Inc(AXGN)COM05463X106$14.9M1,593,2870.3%
Callaway Golf Co(CALY)COM131193104$13.0M472,7100.3%
Butterfly Network Inc(BFLY)COM CL A124155102$6.8M1,014,0640.1%
Alibaba Group Hldg LTD(BABA)SPONSORED ADS01609W102$1.4M11,9090.0%
Darling Ingredients Inc(DAR)COM237266101$1.4M20,2320.0%
Taiwan Semiconductor MFG LTD(TSM)SPONSORED ADS874039100$1.4M11,311,0050.0%
Microsoft Corp(MSFT)COM594918104$847.1K2,518,6710.0%
Amazon COM Inc(AMZN)COM023135106$564.4K169,2700.0%
Alphabet Inc(GOOGL)CAP STK CL A02079K305$554.2K191,2850.0%
Pure Storage Inc(PSTG)CL A74624M102$478.1K14,687,2190.0%
Mercadolibre Inc(MELI)COM58733R102$467.7K346,8840.0%
Canadian Natl RY Co(CNI)COM136375102$438.7K3,568,9740.0%
Trex Co Inc(TREX)COM89531P105$416.4K3,083,8010.0%
DXC Technology Co(DXC)COM23355L106$415.0K12,8790.0%
Alaska AIR Group Inc(ALK)COM011659109$413.0K7,9330.0%
Nice LTD(NSY)SPONSORED ADR653656108$393.4K1,295,9580.0%
Abiomed Inc(ABMDEUR)COM003654100$367.8K1,023,9480.0%
Wyndham Hotels & Resorts Inc(WH)COM98311A105$353.3K3,940,5060.0%
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