NPORT-P false 0000822632 XXXXXXXX S000021052 C000059867 C000059868 C000088850 WILLIAM BLAIR FUNDS 811-05344 0000822632 SNQR0U5FDV8EZZX4W051 150 NORTH RIVERSIDE PLAZA CHICAGO 60606 312-364-8000 William Blair Emerging Markets Leaders Fund S000021052 2SS1NS26N6BK4F3KKO85 2026-12-31 2026-06-30 N 105451793.11 640270.77 104811522.34 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 82031.74000000 N Antofagasta PLC 213800MY6QVH4FVLD628 000000000 28601.00000000 NS 1449223.76000000 1.382695077454 Long EC CORP GB N 1 N N N Grupo Financiero Banorte SAB de CV N/A 000000000 155200.00000000 NS 1643633.45000000 1.568180113507 Long EC CORP MX N 1 N N N WEG SA 254900NKQV127YFRO022 000000000 129600.00000000 NS 1177679.72000000 1.123616653691 Long EC CORP BR N 1 N N N Itau Unibanco Holding SA 5493002W2IVG62O3ZJ94 465562106 88724.00000000 NS USD 724875.08000000 0.691598656155 Long EC CORP BR N 1 N N N ASMPT Ltd 529900PYFA1HFYKPT360 000000000 40800.00000000 NS 1242283.10000000 1.185254323441 Long EC CORP KY N 1 N N N GE Vernova T&D India Ltd 549300NMRD6VZDFLN355 000000000 15691.00000000 NS 824343.69000000 0.786501017823 Long EC CORP IN N 1 N N N Delta Electronics Inc 529900UVZWNWGDLJSM52 000000000 20000.00000000 NS 1224239.95000000 1.168039469962 Long EC CORP TW N 1 N N N Gold Fields Ltd 5299003KXIBJQYCBBD72 000000000 14971.00000000 NS 503557.54000000 0.480441013313 Long EC CORP ZA N 1 N N N Elite Material Co Ltd N/A 000000000 5000.00000000 NS 845981.20000000 0.807145227082 Long EC CORP TW N 1 N N N Hon Hai Precision Industry Co Ltd 30030004CM3GSZXX7O56 000000000 158000.00000000 NS 1244895.08000000 1.187746396776 Long EC CORP TW N 1 N N N Capitec Bank Holdings Ltd N/A 000000000 4472.00000000 NS 1296860.89000000 1.237326642192 Long EC CORP ZA N 1 N N N Bharti Airtel Ltd 335800KQ1FPKOQ84OR26 000000000 68366.00000000 NS 1339748.62000000 1.278245549810 Long EC CORP IN N 1 N N N HD Korea Shipbuilding & Offshore Engineering Co Ltd 988400DPTJ9KH5R6W540 000000000 3222.00000000 NS 727877.11000000 0.694462873689 Long EC CORP KR N 1 N N N SK hynix Inc 988400XAIK6XISWQV045 000000000 1545.00000000 NS 2642645.07000000 2.521330681017 Long EC CORP KR N 1 N N N FirstRand Ltd 529900XYOP8CUZU7R671 000000000 268561.00000000 NS 1594642.42000000 1.521438086575 Long EC CORP ZA N 1 N N N Samsung Electro-Mechanics Co Ltd N/A 000000000 1085.00000000 NS 1529490.74000000 1.459277287318 Long EC CORP KR N 1 N N N Samsung Electronics Co Ltd 9884007ER46L6N7EI764 000000000 30178.00000000 NS 6505810.37000000 6.207151871046 Long EC CORP KR N 1 N N N Taiwan Semiconductor Manufacturing Co Ltd 549300KB6NK5SBD14S87 000000000 129000.00000000 NS 9759075.86000000 9.311071571255 Long EC CORP TW N 1 N N N Fixed Income Clearing Corp. 549300H47WTHXPU08X20 000000000 561744.11000000 PA USD 561744.11000000 0.535956445874 Long RA CORP US N 2 Repurchase N 1.15000000 2026-07-01 571700.00000000 USD 572978.99000000 USD UST N N N Taiwan Semiconductor Manufacturing Co Ltd 549300KB6NK5SBD14S87 874039100 17398.00000000 NS USD 8308762.86000000 7.927337256916 Long EC CORP TW N 1 N N N Vista Energy SAB de CV 549300UDOHP7958KNS89 92837L109 23023.00000000 NS USD 1468867.40000000 1.401436948158 Long EC CORP MX N 1 N N N Samsung Biologics Co Ltd N/A 000000000 838.00000000 NS 752377.20000000 0.717838252133 Long EC CORP KR Y 1 N N N Bharat Electronics Ltd 335800HS8AOTM9W1F335 000000000 162691.00000000 NS 709140.01000000 0.676585926974 Long EC CORP IN N 1 N N N ASE Technology Holding Co Ltd 300300GO8QHPMV87NZ73 000000000 88000.00000000 NS 1878423.56000000 1.792191848818 Long EC CORP TW N 1 N N N Eicher Motors Ltd 25490059S64CN2OY7239 000000000 12657.00000000 NS 949488.10000000 0.905900495290 Long EC CORP IN N 1 N N N Lodha Developers Ltd 254900B5QCN52ETNU557 000000000 116940.00000000 NS 1182139.91000000 1.127872092311 Long EC CORP IN Y 1 N N N America Movil SAB de CV 5493000FNR3UCEAONM59 000000000 582100.00000000 NS 756605.18000000 0.721872140684 Long EC CORP MX N 1 N N N APR Corp/Korea N/A 000000000 2138.00000000 NS 531981.54000000 0.507560169075 Long EC CORP KR N 1 N N N HD Hyundai Marine Solution Co Ltd 988400NV4TGR7O3GJM74 000000000 6277.00000000 NS 909563.35000000 0.867808547851 Long EC CORP KR N 1 N N N Naspers Ltd 21380044BQ8812EEKT59 000000000 18610.00000000 NS 932340.55000000 0.889540128017 Long EC CORP ZA N 1 N N N Eurobank SA 213800KGF4EFNUQKAT69 000000000 339225.00000000 NS 1614347.55000000 1.540238624493 Long EC CORP GR N 1 N N N Bank Central Asia Tbk PT 254900BR956G2OHVOM21 000000000 1770800.00000000 NS 549661.07000000 0.524428095049 Long EC CORP ID N 1 N N N Powszechna Kasa Oszczednosci Bank Polski SA P4GTT6GF1W40CVIMFR43 000000000 32815.00000000 NS 899712.66000000 0.858410067818 Long EC CORP PL N 1 N N N Hindalco Industries Ltd 335800KXLE5NO5B4GF90 000000000 127084.00000000 NS 1287504.39000000 1.228399665662 Long EC CORP IN N 1 N N N Aldar Properties PJSC 98450048CD8AEF13B480 000000000 439780.00000000 NS 991444.78000000 0.945931094086 Long EC CORP AE N 1 N N N GMR Airports Ltd 3358008S2MTRWZ255P70 000000000 1282622.00000000 NS 1524234.67000000 1.454262504703 Long EC CORP IN N 1 N N N Marico Ltd 3358003SFDQFGJPC5O84 000000000 121338.00000000 NS 1074123.39000000 1.024814224638 Long EC CORP IN N 1 N N N Cia de Saneamento Basico do Estado de Sao Paulo SABESP 254900UOXRZRS2TNWP19 000000000 180400.00000000 NS 1035789.47000000 0.988240077879 Long EC CORP BR N 1 N N N Emirates NBD Bank PJSC 54930029BCN8HF3B1286 000000000 93921.00000000 NS 755909.59000000 0.721208482735 Long EC CORP AE N 1 N N N AIA Group Ltd ZP5ILWVSYE4LJGMMVD57 000000000 100200.00000000 NS 912842.91000000 0.870937554974 Long EC CORP HK N 1 N N N Telefonica Brasil SA 529900MTGG2HSDBIWG79 000000000 118300.00000000 NS 778003.02000000 0.742287682337 Long EC CORP BR N 1 N N N Shenzhen Inovance Technology Co Ltd 836800KA53998FUTIA85 000000000 135200.00000000 NS 1320592.87000000 1.259969171820 Long EC CORP CN N 1 N N N Weichai Power Co Ltd 529900OKTPKBG85F9502 000000000 247800.00000000 NS 994374.70000000 0.948726511932 Long EC CORP CN N 1 N N N Hyosung Heavy Industries Corp 988400IDLF9EQ95M0928 000000000 294.00000000 NS 652405.60000000 0.622455990939 Long EC CORP KR N 1 N N N Polycab India Ltd 335800ZAL1L11ERZVW68 000000000 14111.00000000 NS 1486251.09000000 1.418022615088 Long EC CORP IN N 1 N N N Contemporary Amperex Technology Co Ltd 300300KINDY1K0E9I032 000000000 54420.00000000 NS 3149520.19000000 3.004936976092 Long EC CORP CN N 1 N N N WuXi AppTec Co Ltd 254900OEPQLZSPLN9175 000000000 39700.00000000 NS 727908.85000000 0.694493156619 Long EC CORP CN N 1 N N N HDFC Bank Ltd 335800ZQ6I4E2JXENC50 000000000 210970.00000000 NS 1783997.11000000 1.702100179608 Long EC CORP IN N 1 N N N Alibaba Group Holding Ltd 5493001NTNQJDH60PM02 000000000 80228.00000000 NS 949803.94000000 0.906201836205 Long EC CORP KY N 1 N N N Advanced Micro-Fabrication Equipment Inc China N/A 000000000 6304.00000000 NS 434918.68000000 0.414953118025 Long EC CORP CN N 1 N N N NetEase Inc 5299004AF4DSJDB0PA32 000000000 42400.00000000 NS 1094214.48000000 1.043983004512 Long EC CORP KY N 1 N N N Max Healthcare Institute Ltd 3358005LALYV4GZOYF67 000000000 78427.00000000 NS 935403.05000000 0.892462039589 Long EC CORP IN N 1 N N N SK Square Co Ltd 988400SX6QGRCASSFD87 000000000 4667.00000000 NS 5111920.87000000 4.877250855509 Long EC CORP KR N 1 N N N Tencent Holdings Ltd 254900N4SLUMW4XUYY11 000000000 68800.00000000 NS 3770343.69000000 3.597260688351 Long EC CORP KY N 1 N N N Ping An Insurance Group Co of China Ltd 529900M9MC28JLN35U89 000000000 131600.00000000 NS 925167.91000000 0.882696758280 Long EC CORP CN N 1 N N N Fuyao Glass Industry Group Co Ltd 549300AS5CSLWETN0P64 000000000 133000.00000000 NS 987890.88000000 0.942540340932 Long EC CORP CN N 1 N N N Victory Giant Technology Huizhou Co Ltd 836800LBU3EF5U7ECE87 000000000 23700.00000000 NS 1055838.12000000 1.007368366022 Long EC CORP CN N 1 N N N WuXi XDC Cayman Inc 549300BV0TP5RVPBYO24 000000000 119000.00000000 NS 865622.83000000 0.825885180058 Long EC CORP KY N 1 N N N Anglogold Ashanti Plc 2138005YDSA7A82RNU96 000000000 8856.00000000 NS 717903.69000000 0.684947297751 Long EC CORP GB N 1 N N N Zabka Group SA 549300TU2RZ35E4ET914 000000000 146542.00000000 NS 1059583.82000000 1.010942114324 Long EC CORP LU N 1 N N N Shriram Finance Ltd 335800TM2YO24B76XL26 000000000 51263.00000000 NS 566467.42000000 0.540462925595 Long EC CORP IN N 1 N N N Neway Valve Suzhou Co Ltd N/A 000000000 71900.00000000 NS 532572.99000000 0.508124467720 Long EC CORP CN N 1 N N N Bajaj Finance Ltd 335800YTEXC3DO4Z6F68 000000000 175472.00000000 NS 1866708.61000000 1.781014690297 Long EC CORP IN N 1 N N N Embraer SA 549300EM51WYXFHUY333 000000000 74800.00000000 NS 1185979.12000000 1.131535057904 Long EC CORP BR N 1 N N N Fabrinet 5493004TETZ6IYF7CV44 000000000 861.00000000 NS USD 483950.88000000 0.461734424990 Long EC CORP KY N 1 N N N Grab Holdings Ltd 549300N4VQX83VPJF439 000000000 202584.00000000 NS USD 763741.68000000 0.728681029479 Long EC CORP KY N 1 N N N NU Holdings Ltd/Cayman Islands 5493002DG1RHWK9W2X27 000000000 120508.00000000 NS USD 1609986.88000000 1.536078137265 Long EC CORP KY N 1 N N N 2026-07-15 WILLIAM BLAIR FUNDS John Raczek John Raczek Principal Financial Officer