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William Blair Investment Management, LLC

Q4 2015 Holdings

Filed 2016-02-16 | 444 holdings | $1.2B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Alibaba Group Holding(BABA)ADR01609W102$307.2M3,780,12026.6%
Align Technology Inc(ALGN)COM016255101$265.1M4,026,36422.9%
Biomarin Pharmaceutical Inc(BMRN)COM09061G101$106.1M1,012,4229.2%
Costco Wholesale Corp(COST)COM22160K105$105.3M651,7449.1%
Biogen Inc(BIIB)COM09062X103$96.7M315,7948.4%
Adobe Systems Inc(ADBE)COM00724F101$85.4M908,6287.4%
Akamai Technologies Inc(AKAM)COM00971T101$65.1M1,236,2045.6%
Cadence Design SYS Inc(CDNS)COM127387108$24.8M1,192,3432.1%
Conmed Corp(CNMD)COM207410101$17.0M385,4161.5%
Curtiss-Wright Corp(CW)COM231561101$16.9M246,2221.5%
Dana Holding Corp(DAN)COM235825205$10.1M734,1890.9%
Darling Ingredients Inc(DAR)COM237266101$9.5M903,9160.8%
Atricure Inc(ATRC)COM04963C209$8.5M380,4080.7%
Cavco Industries Inc(CVCO)COM149568107$7.6M91,4950.7%
Controladora Vuela CIA(VLRS)ADR21240E105$7.5M437,8400.6%
Taiwan Semiconductor(TSM)ADR874039100$542.1K23,827,2080.0%
Spdr S&P 500 ETF Trust(SPY)ETF US78462F103$505.4K2,478,9620.0%
Teva Pharmaceutical(TEVA)ADR881624209$410.3K6,250,9900.0%
Affiliated Managers Group(AMG)COM008252108$369.5K2,312,6150.0%
Dollar General Corp(DG)COM256677105$329.4K4,583,2080.0%
Ishares Russell 1000 Value E(IWD)ETF US464287598$317.1K3,240,3000.0%
Old Dominion Freight Line(ODFL)COM679580100$306.4K5,187,8140.0%
Baidu Inc(BIDUN)ADR056752108$305.9K1,617,9090.0%
RED HAT IncCOM756577102$299.3K3,614,3250.0%
Guidewire Software Inc(GWRE)COM40171V100$297.9K4,951,3850.0%
Alphabet Inc(GOOGL)COM02079K305$287.0K368,8670.0%
Costar Group Inc(CSGP)COM22160N109$283.1K1,369,4400.0%
Intercontinental Exchange in(ICE)COM45866F104$275.5K1,075,1330.0%
NXP Semiconductors NV(NXPI)COMN6596X109$272.7K3,237,2140.0%
Vantiv IncCOM92210H105$270.6K5,706,1190.0%
Ishares Iboxx Investment GRA(LQD)ETF US464287242$267.3K2,344,9000.0%
Moody's Corp(MCO)COM615369105$262.7K2,618,4000.0%
Signature Bank(SBNY)COM82669G104$262.2K1,709,8620.0%
Mednax Inc(MD)COM58502B106$258.5K3,607,9600.0%
Brookfield Asset ManageCOM112585104$254.2K8,061,1080.0%
Cerner Corp(CERNCHF)COM156782104$250.0K4,154,5720.0%
Borgwarner Inc(BWA)COM099724106$248.3K5,742,9340.0%
Netease Inc(NTES)ADR64110W102$245.2K1,353,0290.0%
Mastercard Inc(MA)COM57636Q104$245.2K2,518,6370.0%
Transdigm Group Inc(TDG)COM893641100$234.2K1,024,9570.0%
SBA Communications CorpCOM78388J106$231.0K2,198,8240.0%
Ambev SA(ABEV)ADR02319V103$227.6K51,022,4870.0%
SIX Flags Entertainment Corp(SIXEUR)COM83001A102$225.5K4,104,7230.0%
Bristol-Myers Squibb Co(BMY)COM110122108$215.3K3,129,7060.0%
Mettler-Toledo International(MTD)COM592688105$213.6K629,9870.0%
Suncor Energy Inc(SU)COM867224107$207.9K8,080,0390.0%
Alimentation Couche-TardCOM01626P403$200.1K4,564,2360.0%
Brunswick Corp(BC)COM117043109$199.5K3,949,4530.0%
Sirona Dental Systems IncCOM82966C103$198.9K1,815,1820.0%
Amazon.com Inc(AMZN)COM023135106$195.7K289,5470.0%
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