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William Blair Investment Management, LLC

Q3 2016 Holdings

Filed 2016-11-14 | 443 holdings | $1.5B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Alibaba Group Holding(BABA)ADR01609W102$485.2M4,586,62531.7%
Akamai Technologies Inc(AKAM)COM00971T101$270.7M5,107,86817.7%
Align Technology Inc(ALGN)COM016255101$153.8M1,640,82410.1%
Biogen Inc(BIIB)COM09062X103$135.1M431,7318.8%
Adobe Systems Inc(ADBE)COM00724F101$110.4M1,016,7427.2%
Biomarin Pharmaceutical Inc(BMRN)COM09061G101$108.8M1,176,0757.1%
Costco Wholesale Corp(COST)COM22160K105$93.3M611,9296.1%
Boston Scientific Corp(BSX)COM101137107$38.3M1,610,7832.5%
Curtiss-Wright Corp(CW)COM231561101$23.2M254,5591.5%
Dana Inc(DAN)COM235825205$17.6M1,131,4421.2%
Conmed Corp(CNMD)COM207410101$17.6M439,7561.2%
Darling Ingredients Inc(DAR)COM237266101$16.1M1,193,6771.1%
Cavco Industries Inc(CVCO)COM149568107$14.5M146,0280.9%
Atricure Inc(ATRC)COM04963C209$11.0M692,8450.7%
Controladora Vuela CIA(VLRS)ADR21240E105$3.3M192,2730.2%
Codexis Inc(CDXS)COM192005106$3.2M716,1600.2%
Cadence Design SYS Inc(CDNS)COM127387108$1.2M46,8090.1%
Taiwan Semiconductor(TSM)ADR874039100$645.5K21,102,5750.0%
Darden Restaurants Inc(DRI)COM237194105$511.0K8,3300.0%
Netease Inc(NTES)ADR64110W102$419.0K1,740,2700.0%
Spdr S&P 500 ETF Trust(SPY)ETF US78462F103$411.1K1,900,8240.0%
Transdigm Group Inc(TDG)COM893641100$333.7K1,154,3030.0%
Costar Group Inc(CSGP)COM22160N109$328.3K1,516,1280.0%
Amazon.com Inc(AMZN)COM023135106$325.7K389,0090.0%
Ishares Russell 1000 Value E(IWD)ETF US464287598$322.4K3,052,7000.0%
Mednax Inc(MD)COM58502B106$321.8K4,857,7740.0%
Vantiv IncCOM92210H105$319.7K5,681,1910.0%
Alphabet Inc(GOOGL)COM02079K305$312.9K389,1650.0%
NXP Semiconductors NV(NXPI)COMN6596X109$312.3K3,061,0730.0%
Old Dominion Freight Line(ODFL)COM679580100$300.7K4,382,2270.0%
SBA Communications CorpCOM78388J106$299.5K2,670,1300.0%
Cerner Corp(CERNCHF)COM156782104$289.0K4,680,4580.0%
Centene Corp(CNC)COM15135B101$278.8K4,163,8040.0%
Microsoft Corp(MSFT)COM594918104$268.9K4,669,1090.0%
RED HAT IncCOM756577102$268.2K3,317,6460.0%
Brookfield Asset ManageCOM112585104$267.0K7,588,1160.0%
Affiliated Managers Group(AMG)COM008252108$266.5K1,841,8000.0%
Guidewire Software Inc(GWRE)COM40171V100$252.3K4,206,6910.0%
Zoetis Inc(ZTS)COM98978V103$248.3K4,774,2190.0%
Intercontinental Exchange in(ICE)COM45866F104$242.2K899,2810.0%
Booz Allen Hamilton Holdings(BAH)COM099502106$239.5K7,576,5550.0%
SIX Flags Entertainment Corp(SIXEUR)COM83001A102$236.6K4,413,5960.0%
Hdfc Bank LTD(HDB)ADR40415F101$230.5K3,206,0800.0%
Mastercard Inc(MA)COM57636Q104$227.3K2,233,2990.0%
Facebook Inc(META)COM30303M102$223.9K1,745,7070.0%
Csra IncCOM12650T104$222.2K8,259,9470.0%
Mettler-Toledo International(MTD)COM592688105$222.1K529,1050.0%
Credicorp LTD(BAP)COMG2519Y108$218.4K1,434,7550.0%
Maximus Inc(MMS)COM577933104$217.8K3,851,4770.0%
November 16 Puts on EEM USPutOPTION464287954$216.2K5,772,4000.0%
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