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William Blair Investment Management, LLC

Q1 2019 Holdings

Filed 2019-05-10 | 406 holdings | $1.8B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Alibaba Group Hldg LTD(BABA)SPONSORED ADS01609W102$1.1B5,875,28258.3%
Burlington Stores Inc(BURL)COM122017106$266.2M1,698,82614.5%
Adobe Inc(ADBE)COM00724F101$94.5M354,5045.1%
Align Technology Inc(ALGN)COM016255101$33.9M119,2271.8%
Costco Whsl Corp New(COST)COM22160K105$30.9M127,6751.7%
Darling Ingredients Inc(DAR)COM237266101$30.4M1,406,2611.7%
Conmed Corp(CNMD)COM207410101$30.3M363,6891.6%
Agilysys Inc(AGYS)COM00847J105$25.0M1,179,4161.4%
Boot Barn Hldgs Inc(BOOT)COM099406100$22.3M758,6071.2%
Blue Bird Corp(BLBD)COM095306106$22.0M1,302,0241.2%
Casella Waste SYS Inc(CWST)CL A147448104$20.7M581,3441.1%
Curtiss Wright Corp(CW)COM231561101$18.6M164,1441.0%
Codexis Inc(CDXS)COM192005106$17.8M866,5871.0%
Autodesk Inc(ADSK)COM052769106$17.6M113,2601.0%
Ciena Corp(CIEN)COM NEW171779309$17.6M472,5341.0%
Dana Incorporated(DAN)COM235825205$15.7M882,2810.9%
Cryolife Inc(AORT)COM228903100$15.6M533,1100.8%
Centene Corp del(CNC)COM15135B101$15.5M291,3990.8%
Carmax Inc(KMX)COM143130102$13.1M187,9420.7%
Cars COM Inc(CARS)COM14575E105$12.7M557,6810.7%
Cavco Inds Inc del(CVCO)COM149568107$10.0M84,7400.5%
Aspen Group Inc(ASPU)COM NEW04530L203$7.1M1,326,9610.4%
Crown Holdings Inc(CCK)COM228368106$3.6M65,3280.2%
Apple Hospitality REIT Inc(APLE)COM NEW03784Y200$2.7M164,7540.1%
Cadence Design System Inc(CDNS)COM127387108$688.0K10,8400.0%
Taiwan Semiconductor MFG LTD(TSM)SPONSORED ADS874039100$672.3K16,414,8830.0%
Spdr S&P 500 ETF TR(SPY)TR UNIT78462F103$584.9K2,070,6000.0%
Copart Inc(CPRT)COM217204106$403.7K6,662,6790.0%
Costar Group Inc(CSGP)COM22160N109$390.2K836,4980.0%
Brookfield Asset Mgmt IncCL A LTD VT SH112585104$343.0K7,352,4990.0%
Booz Allen Hamilton Hldg COR(BAH)CL A099502106$336.6K5,790,3180.0%
Rogers Communications Inc(RCI)CL B775109200$327.0K6,079,8840.0%
Euronet Worldwide Inc(EEFT)COM298736109$316.6K2,220,4420.0%
BWX Technologies Inc(BWXT)COM05605H100$315.0K6,352,7780.0%
Canadian Natl RY Co(CNI)COM136375102$307.2K3,431,0770.0%
Ball Corp(BALL)COM058498106$292.0K5,045,8870.0%
Veeva SYS Inc(VEEV)CL A COM922475108$283.6K2,235,6250.0%
Pure Storage Inc(PSTG)CL A74624M102$275.7K12,650,8850.0%
Toronto Dominion BK ONT(TD)COM NEW891160509$260.9K4,806,8540.0%
Live Nation Entertainment in(LYV)COM538034109$259.6K4,086,3200.0%
Credicorp LTD(BAP)COMG2519Y108$243.4K1,014,5090.0%
Rogers Corp(ROG)COM775133101$240.6K1,514,0440.0%
Dominos Pizza Inc(DPZ)COM25754A201$235.3K911,6020.0%
Cboe Global Markets Inc(CBOE)COM12503M108$234.0K2,451,7520.0%
Teleflex Inc(TFX)COM879369106$233.5K772,7250.0%
Adtalem Global ED Inc(ATGE)COM00737L103$221.6K4,784,4730.0%
Vail Resorts Inc(MTN)COM91879Q109$215.2K990,3200.0%
Transunion(TRU)COM89400J107$211.7K3,167,8060.0%
Check Point Software Tech LT(CHKP)ORDM22465104$208.9K1,651,6780.0%
Amazon COM Inc(AMZN)COM023135106$208.0K116,8000.0%
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