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William Blair Investment Management, LLC

Q2 2018 Holdings

Filed 2018-08-14 | 476 holdings | $2.0B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Alibaba Group Hldg LTD(BABA)SPONSORED ADS01609W102$1.1B5,736,66752.6%
Charles RIV Labs Intl Inc(CRL)COM159864107$187.7M1,671,9099.3%
Adobe SYS Inc(ADBE)COM00724F101$147.6M605,2927.3%
Burlington Stores Inc(BURL)COM122017106$93.4M620,2444.6%
Baozun Inc(BZUN)SPONSORED ADR06684L103$80.5M1,471,6894.0%
Akamai Technologies Inc(AKAM)COM00971T101$66.7M910,6943.3%
Align Technology Inc(ALGN)COM016255101$43.8M127,9482.2%
Carmax Inc(KMX)COM143130102$40.1M549,9402.0%
Biogen Inc(BIIB)COM09062X103$33.3M114,6961.6%
Conmed Corp(CNMD)COM207410101$29.3M400,0001.4%
Blue Bird Corp(BLBD)COM095306106$23.4M1,047,8671.2%
Darling Ingredients Inc(DAR)COM237266101$21.2M1,068,0981.1%
Codexis Inc(CDXS)COM192005106$21.2M1,472,5541.0%
Cavco Inds Inc del(CVCO)COM149568107$20.4M98,4661.0%
Costco Whsl Corp New(COST)COM22160K105$16.8M80,2790.8%
Dana Incorporated(DAN)COM235825205$15.6M770,6160.8%
Ciena Corp(CIEN)COM NEW171779309$14.7M554,0460.7%
Boot Barn Hldgs Inc(BOOT)COM099406100$13.5M648,2460.7%
Cars COM Inc(CARS)COM14575E105$13.3M469,0830.7%
Cryolife Inc(AORT)COM228903100$11.2M401,2990.6%
Beigene LTD(ONC)SPONSORED ADR07725L102$10.5M68,2230.5%
Axogen Inc(AXGN)COM05463X106$10.3M205,2800.5%
Agilysys Inc(AGYS)COM00847J105$9.0M579,9870.4%
Bluelinx Hldgs Inc(BXC)COM NEW09624H208$4.1M108,9470.2%
Apple Hospitality REIT Inc(APLE)COM NEW03784Y200$3.0M167,0710.1%
Cadence Design System Inc(CDNS)COM127387108$1.1M24,6740.1%
Spdr S&P 500 ETF TR(SPY)TR UNIT78462F103$688.3K2,537,1000.0%
Taiwan Semiconductor MFG LTD(TSM)SPONSORED ADR874039100$604.8K16,542,5020.0%
Copart Inc(CPRT)COM217204106$453.4K8,016,0650.0%
Costar Group Inc(CSGP)COM22160N109$439.5K1,065,1220.0%
Suncor Energy Inc New(SU)COM867224107$365.4K8,979,9940.0%
Toronto Dominion BK ONT(TD)COM NEW891160509$363.6K6,282,5460.0%
BWX Technologies Inc(BWXT)COM05605H100$357.4K5,735,2950.0%
Encompass Health Corp(EHC)COM29261A100$340.5K5,027,4770.0%
AMN Healthcare Services Inc(AMN)COM001744101$339.0K5,7800.0%
SIX Flags Entmt Corp New(SIXEUR)COM83001A102$335.1K4,784,3870.0%
Acadia Healthcare Company in(ACHC)COM00404A109$326.0K7,9600.0%
Live Nation Entertainment in(LYV)COM538034109$319.2K6,571,6290.0%
Booz Allen Hamilton Hldg COR(BAH)CL A099502106$315.7K7,219,6460.0%
Amazon COM Inc(AMZN)COM023135106$311.1K183,0400.0%
Conduent Inc(CNDT)COM206787103$309.0K16,9900.0%
Dominos Pizza Inc(DPZ)COM25754A201$298.7K1,058,7510.0%
Vail Resorts Inc(MTN)COM91879Q109$259.4K946,1000.0%
Ball Corp(BALL)COM058498106$252.5K7,104,0410.0%
Alphabet Inc(GOOGL)CAP STK CL A02079K305$238.0K210,7510.0%
Ligand Pharmaceuticals Inc(LGND)COM NEW53220K504$235.6K1,137,0110.0%
Microsoft Corp(MSFT)COM594918104$232.2K2,354,7600.0%
Transunion(TRU)COM89400J107$225.6K3,148,4870.0%
Guidewire Software Inc(GWRE)COM40171V100$223.0K2,511,6350.0%
Adtalem Global ED Inc(ATGE)COM00737L103$218.5K4,542,5280.0%
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