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William Blair Investment Management, LLC

Q3 2017 Holdings

Filed 2017-11-13 | 434 holdings | $2.1B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Alibaba Group Holding(BABA)ADR01609W102$1.1B6,399,09351.7%
Align Technology Inc(ALGN)COM016255101$235.9M1,266,30811.0%
Adobe Systems Inc(ADBE)COM00724F101$144.1M965,9416.7%
Acadia Healthcare Co Inc(ACHC)COM00404A109$102.2M2,139,9354.8%
Carmax Inc(KMX)COM143130102$94.4M1,245,7294.4%
Biomarin Pharmaceutical Inc(BMRN)COM09061G101$92.2M990,2614.3%
Costco Wholesale Corp(COST)COM22160K105$69.3M421,5943.2%
Biogen Inc(BIIB)COM09062X103$47.4M151,3362.2%
Boston Scientific Corp(BSX)COM101137107$44.2M1,513,5632.1%
Dana Inc(DAN)COM235825205$30.3M1,084,0471.4%
Baozun Inc-Spn ADR(BZUN)ADR06684L103$25.5M779,3771.2%
Conmed Corp(CNMD)COM207410101$22.7M431,9571.1%
Cavco Industries Inc(CVCO)COM149568107$22.2M150,4011.0%
Darling Ingredients Inc(DAR)COM237266101$20.2M1,153,6210.9%
Blue Bird Corp(BLBD)COM095306106$13.8M667,5630.6%
Codexis Inc(CDXS)COM192005106$10.1M1,513,4440.5%
Cryolife Inc(AORT)COM228903100$9.6M423,8870.4%
Boot Barn Holdings Inc(BOOT)COM099406100$6.2M699,8980.3%
Cars.com Inc(CARS)COM14575E105$5.5M204,9130.3%
Charles River Laboratories(CRL)COM159864107$4.9M45,1180.2%
Agilysys Inc(AGYS)COM00847J105$4.5M374,5140.2%
Apple Hospitality REIT Inc(APLE)COM03784Y200$3.0M156,0330.1%
Cadence Design SYS Inc(CDNS)COM127387108$836.0K21,1750.0%
Taiwan Semiconductor(TSM)ADR874039100$734.6K19,563,2580.0%
Canadian Natl Railway Co(CNI)COM136375102$387.3K4,684,7100.0%
Costar Group Inc(CSGP)COM22160N109$373.8K1,393,3040.0%
BWX Technologies Inc(BWXT)COM05605H100$358.1K6,391,9780.0%
SBA Communications Corp(SBAC)COM78410G104$355.4K2,467,4320.0%
Copart Inc(CPRT)COM217204106$349.4K10,166,8450.0%
Vantiv IncCOM92210H105$345.6K4,904,2190.0%
Spdr S&P 500 ETF Trust(SPY)ETF78462F103$343.9K1,368,9240.0%
Suncor Energy Inc(SU)COM867224107$341.2K9,758,8600.0%
SIX Flags Entertainment Corp(SIXEUR)COM83001A102$329.8K5,411,1960.0%
Check Point Software Tech(CHKP)COMM22465104$307.7K2,698,5620.0%
Guidewire Software Inc(GWRE)COM40171V100$304.6K3,911,5400.0%
Ball Corp(BALL)COM058498106$303.4K7,347,2030.0%
Vail Resorts Inc(MTN)COM91879Q109$302.6K1,326,7020.0%
Alphabet Inc(GOOGL)COM02079K305$299.0K307,0210.0%
Credicorp LTD(BAP)COMG2519Y108$297.6K1,451,4340.0%
Ishares Russell 1000 Value E(IWD)ETF464287598$294.3K2,483,2000.0%
RED HAT IncCOM756577102$289.7K2,612,7550.0%
Affiliated Managers Group(AMG)COM008252108$288.4K1,519,3720.0%
Booz Allen Hamilton Holdings(BAH)COM099502106$282.5K7,554,4770.0%
Zoetis Inc(ZTS)COM98978V103$282.3K4,427,9870.0%
Centene Corp(CNC)COM15135B101$278.8K2,881,4880.0%
Amazon.com Inc(AMZN)COM023135106$276.5K287,6570.0%
Microsoft Corp(MSFT)COM594918104$270.3K3,629,1130.0%
Hdfc Bank LTD(HDB)ADR40415F101$269.3K2,794,7000.0%
Mastercard Inc(MA)COM57636Q104$248.7K1,761,4440.0%
Middleby Corp(MIDD)COM596278101$248.6K1,939,5530.0%
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