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William Blair Investment Management, LLC

Q4 2019 Holdings

Filed 2020-02-12 | 356 holdings | $2.6B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Alibaba Group Hldg LTD(BABA)SPONSORED ADS01609W102$1.2B5,671,74346.5%
Burlington Stores Inc(BURL)COM122017106$334.5M1,466,99212.9%
Crown Holdings Inc(CCK)COM228368106$223.7M3,083,8778.6%
BJS Whsl Club Hldgs Inc(BJ)COM05550J101$215.7M9,485,2848.3%
Adobe Inc(ADBE)COM00724F101$122.8M372,2974.7%
Advanced Micro Devices Inc(AMD)COM007903107$94.3M2,056,3923.6%
Darling Ingredients Inc(DAR)COM237266101$40.1M1,427,6031.5%
Costco Whsl Corp New(COST)COM22160K105$37.1M126,1511.4%
Boot Barn Hldgs Inc(BOOT)COM099406100$32.1M721,4991.2%
Codexis Inc(CDXS)COM192005106$27.7M1,734,3421.1%
Agilysys Inc(AGYS)COM00847J105$25.3M996,1711.0%
Blue Bird Corp(BLBD)COM095306106$25.2M1,097,3141.0%
Casella Waste SYS Inc(CWST)CL A147448104$24.9M540,2101.0%
Curtiss Wright Corp(CW)COM231561101$24.4M173,4270.9%
Conmed Corp(CNMD)COM207410101$21.2M189,7160.8%
Centene Corp del(CNC)COM15135B101$19.4M307,8000.7%
Cryolife Inc(AORT)COM228903100$19.2M709,1380.7%
Autodesk Inc(ADSK)COM052769106$16.5M90,1500.6%
Axogen Inc(AXGN)COM05463X106$16.5M922,0790.6%
Carmax Inc(KMX)COM143130102$13.9M158,0720.5%
Dana Incorporated(DAN)COM235825205$11.2M616,5260.4%
Cracker Barrel Old Ctry Stor(CBRL)COM22410J106$9.7M62,8680.4%
Caredx Inc(CDNA)COM14167L103$7.8M359,8540.3%
Taiwan Semiconductor MFG LTD(TSM)SPONSORED ADS874039100$1.0M17,339,5430.0%
Spdr S&P 500 ETF TR(SPY)TR UNIT78462F103$723.3K2,247,3000.0%
BWX Technologies Inc(BWXT)COM05605H100$456.8K7,357,9820.0%
Brookfield Asset Mgmt IncCL A LTD VT SH112585104$414.0K7,162,8930.0%
Encompass Health Corp(EHC)COM29261A100$344.2K4,968,2820.0%
Trex Co Inc(TREX)COM89531P105$340.1K3,784,1510.0%
Euronet Worldwide Inc(EEFT)COM298736109$325.7K2,067,2000.0%
Horizon Therapeutics PUB LTDSHSG46188101$320.6K8,855,4900.0%
Canadian Natl RY Co(CNI)COM136375102$302.4K3,342,9550.0%
Netease Inc(NTES)SPONSORED ADS64110W102$296.0K965,3930.0%
Lamb Weston Hldgs Inc(LW)COM513272104$295.1K3,430,3680.0%
Live Nation Entertainment in(LYV)COM538034109$292.2K4,088,3710.0%
Martin Marietta Matls Inc(MLM)COM573284106$290.4K1,038,4470.0%
Grand Canyon ED Inc(LOPE)COM38526M106$274.6K2,867,1870.0%
Insulet Corp(PODD)COM45784P101$274.1K1,601,0240.0%
Teledyne Technologies Inc(TDY)COM879360105$271.2K782,5190.0%
Pure Storage Inc(PSTG)CL A74624M102$266.0K15,543,6800.0%
Teleflex Inc(TFX)COM879369106$258.6K686,9830.0%
Amazon COM Inc(AMZN)COM023135106$241.3K130,5730.0%
Vail Resorts Inc(MTN)COM91879Q109$240.0K1,000,6270.0%
Toronto Dominion BK ONT(TD)COM NEW891160509$237.0K4,224,7330.0%
J2 Global Inc(ZD)COM48123V102$231.6K2,470,9560.0%
Alphabet Inc(GOOGL)CAP STK CL A02079K305$228.3K170,4490.0%
Transunion(TRU)COM89400J107$218.1K2,547,9390.0%
Brinks Co(BCO)COM109696104$209.1K2,306,0540.0%
Sabre Corp(SABR)COM78573M104$207.4K9,242,6650.0%
Penumbra Inc(PEN)COM70975L107$200.1K1,218,1870.0%
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