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William Blair Investment Management, LLC

Q1 2016 Holdings

Filed 2016-05-16 | 450 holdings | $1.2B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Align Technology Inc(ALGN)COM016255101$254.8M3,505,87020.7%
Alibaba Group Holding(BABA)ADR01609W102$225.9M2,858,24118.4%
Akamai Technologies Inc(AKAM)COM00971T101$205.6M3,700,26716.7%
Costco Wholesale Corp(COST)COM22160K105$120.5M764,7919.8%
Adobe Systems Inc(ADBE)COM00724F101$101.8M1,084,9898.3%
Biogen Inc(BIIB)COM09062X103$96.7M371,4467.9%
Biomarin Pharmaceutical Inc(BMRN)COM09061G101$81.3M985,1686.6%
Cadence Design SYS Inc(CDNS)COM127387108$25.0M1,061,2122.0%
Curtiss-Wright Corp(CW)COM231561101$20.0M264,5761.6%
Conmed Corp(CNMD)COM207410101$18.4M438,0391.5%
Darling Ingredients Inc(DAR)COM237266101$15.5M1,178,2651.3%
Cavco Industries Inc(CVCO)COM149568107$12.2M130,9491.0%
Dana Holding Corp(DAN)COM235825205$10.2M726,2320.8%
Controladora Vuela CIA(VLRS)ADR21240E105$9.2M435,1290.7%
Atricure Inc(ATRC)COM04963C209$6.9M412,0380.6%
Taiwan Semiconductor(TSM)ADR874039100$591.1K22,560,7760.0%
Dollar General Corp(DG)COM256677105$425.4K4,969,3330.0%
Darden Restaurants Inc(DRI)COM237194105$389.0K5,8600.0%
Affiliated Managers Group(AMG)COM008252108$357.1K2,198,8300.0%
Spdr S&P 500 ETF Trust(SPY)ETF US78462F103$349.9K1,702,3740.0%
Ishares Russell 1000 Value E(IWD)ETF US464287598$340.2K3,442,7000.0%
Old Dominion Freight Line(ODFL)COM679580100$337.6K4,849,2000.0%
Baidu Inc(BIDUN)ADR056752108$323.5K1,694,6280.0%
Vantiv IncCOM92210H105$310.3K5,759,2970.0%
Mednax Inc(MD)COM58502B106$308.8K4,778,0890.0%
Alphabet Inc(GOOGL)COM02079K305$300.7K394,0950.0%
Costar Group Inc(CSGP)COM22160N109$296.1K1,573,6880.0%
Teva Pharmaceutical(TEVA)ADR881624209$274.4K5,127,9070.0%
Guidewire Software Inc(GWRE)COM40171V100$269.4K4,944,0410.0%
NXP Semiconductors NV(NXPI)COMN6596X109$262.5K3,237,3300.0%
Brookfield Asset ManageCOM112585104$261.7K7,520,9200.0%
Ambev SA(ABEV)ADR02319V103$257.7K49,745,2520.0%
Centene Corp(CNC)COM15135B101$253.3K4,114,1240.0%
Amazon.com Inc(AMZN)COM023135106$247.6K417,1190.0%
Transdigm Group Inc(TDG)COM893641100$242.0K1,098,2390.0%
Check Point Software Tech(CHKP)COMM22465104$240.9K2,754,1810.0%
Intercontinental Exchange in(ICE)COM45866F104$239.7K1,019,3370.0%
Toronto-Dominion Bank(TD)COM891160509$239.2K5,521,7520.0%
Cerner Corp(CERNCHF)COM156782104$234.7K4,431,1870.0%
Ishares Iboxx Investment GRA(LQD)ETF US464287242$234.4K1,973,1000.0%
SIX Flags Entertainment Corp(SIXEUR)COM83001A102$232.3K4,186,9690.0%
SBA Communications CorpCOM78388J106$221.5K2,210,7430.0%
Newell Brands Inc(NWL)COM651229106$220.5K4,977,6200.0%
Signature Bank(SBNY)COM82669G104$220.1K1,616,9800.0%
Moody's Corp(MCO)COM615369105$216.5K2,241,7190.0%
Mastercard Inc(MA)COM57636Q104$211.0K2,233,1850.0%
Microsoft Corp(MSFT)COM594918104$210.1K3,803,5850.0%
Mettler-Toledo International(MTD)COM592688105$208.3K604,2980.0%
Willis Towers Watson PLC(WTW)COMG96629103$206.6K1,741,5170.0%
Netease Inc(NTES)ADR64110W102$202.7K1,411,8500.0%
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