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William Blair Investment Management, LLC

Q4 2019 Holdings

Filed 2020-02-12 | 356 holdings | $2.6B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↑Shares% Portfolio
Etsy Inc(ETSY)COM29786A106$97.0K2,189,1680.0%
Lauder Estee COS Inc(EL)CL A518439104$98.2K475,3720.0%
Veracyte Inc(VCYT)COM92337F107$99.7K3,569,4010.0%
TAL Education Group(TAL)SPONSORED ADS874080104$101.2K2,098,9560.0%
National Instrs CorpCOM636518102$101.2K2,389,6050.0%
Intercontinental Exchange in(ICE)COM45866F104$103.1K1,113,7710.0%
Rogers Corp(ROG)COM775133101$105.9K848,9010.0%
Paypal Hldgs Inc(PYPL)COM70450Y103$106.2K981,7030.0%
Fidelity Natl Information SV(FIS)COM31620M106$107.0K769,2850.0%
Glaukos Corp(GKOS)COM377322102$107.7K1,976,5250.0%
Globant S A(GLOB)COML44385109$108.8K1,025,7010.0%
Zoetis Inc(ZTS)CL A98978V103$109.4K826,2960.0%
Abiomed Inc(ABMDEUR)COM003654100$110.0K644,8370.0%
Varonis SYS Inc(VRNS)COM922280102$110.6K1,422,7670.0%
Proofpoint Inc(PFPT)COM743424103$111.1K968,2490.0%
Planet Fitness Inc(PLNT)CL A72703H101$112.1K1,500,8640.0%
Halozyme Therapeutics Inc(HALO)COM40637H109$112.3K6,331,5300.0%
Perspecta Inc(PRSP)COM715347100$114.4K4,325,7760.0%
Encore Cap Group Inc(ECPG)COM292554102$117.5K3,323,8970.0%
Canadian PAC RY LTDCOM13645T100$118.6K465,2040.0%
Signature BK New York N Y(SBNY)COM82669G104$121.6K890,0520.0%
Heico Corp New(HEI/A)CL A422806208$122.8K1,371,1650.0%
Ollies Bargain Outlt Hldgs I(OLLI)COM681116109$123.6K1,892,5270.0%
Yandex N V(NBIS)SHS CLASS AN97284108$126.0K2,897,5470.0%
Siteone Landscape Supply Inc(SITE)COM82982L103$127.1K1,402,5420.0%
Firstservice Corp New(FSV)COM33767E202$127.7K1,372,1580.0%
World Wrestling Entmt Inc(WWEUSD)CL A98156Q108$127.7K1,968,0380.0%
Virtu Finl Inc(VIRT)CL A928254101$129.8K8,114,9720.0%
Cboe Global Markets Inc(CBOE)COM12503M108$135.6K1,129,8650.0%
Healthcare Svcs GRP Inc(HCSG)COM421906108$138.2K5,681,5920.0%
Lululemon Athletica Inc(LULU)COM550021109$139.8K603,3400.0%
Zynga Inc(ZNGAEUR)CL A98986T108$139.9K22,861,8760.0%
Credicorp LTD(BAP)COMG2519Y108$147.5K691,9440.0%
Ligand Pharmaceuticals Inc(LGND)COM NEW53220K504$147.8K1,416,8500.0%
Avalara Inc(AVLRUSD)COM05338G106$148.1K2,021,6050.0%
Advance Auto Parts Inc(AAP)COM00751Y106$148.3K926,0380.0%
Jones Lang Lasalle Inc(JLL)COM48020Q107$148.3K852,0260.0%
Ritchie Bros Auctioneers(RBAGBP)COM767744105$156.3K3,638,0330.0%
Steris PLC(STE)SHS USDG8473T100$162.9K1,068,6970.0%
Firstcash IncCOM33767D105$164.4K2,038,9960.0%
Mastercard Inc(MA)CL A57636Q104$164.7K551,4330.0%
Hdfc Bank LTD(HDB)SPONSORED ADS40415F101$167.7K2,646,7450.0%
Portola Pharmaceuticals IncCOM737010108$173.1K7,249,0720.0%
Amedisys Inc(AMED)COM023436108$178.6K1,070,1540.0%
Aspen Technology Inc(AZPNUSD)COM045327103$180.9K1,495,4930.0%
WEX Inc(WEX)COM96208T104$182.1K869,2770.0%
Check Point Software Tech LT(CHKP)ORDM22465104$182.1K1,641,5640.0%
Huazhu Group LTD(HTHT)SPONSORED ADS44332N106$182.3K4,550,0940.0%
Guidewire Software Inc(GWRE)COM40171V100$184.0K1,676,6650.0%
Godaddy Inc(GDDY)CL A380237107$185.4K2,729,6260.0%
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