0001752724-21-025599.txt : 20210217 0001752724-21-025599.hdr.sgml : 20210217 20210217155932 ACCESSION NUMBER: 0001752724-21-025599 CONFORMED SUBMISSION TYPE: NPORT-P PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20201231 FILED AS OF DATE: 20210217 PERIOD START: 20201231 FILER: COMPANY DATA: COMPANY CONFORMED NAME: WILLIAM BLAIR FUNDS CENTRAL INDEX KEY: 0000822632 IRS NUMBER: 000000000 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: NPORT-P SEC ACT: 1940 Act SEC FILE NUMBER: 811-05344 FILM NUMBER: 21644601 BUSINESS ADDRESS: STREET 1: 150 NORTH RIVERSIDE PLAZA CITY: CHICAGO STATE: IL ZIP: 60606 BUSINESS PHONE: 3123648000 MAIL ADDRESS: STREET 1: 150 NORTH RIVERSIDE PLAZA CITY: CHICAGO STATE: IL ZIP: 60606 FORMER COMPANY: FORMER CONFORMED NAME: WILLIAM BLAIR MUTUAL FUNDS INC DATE OF NAME CHANGE: 19960112 FORMER COMPANY: FORMER CONFORMED NAME: BLAIR WILLIAM READY RESERVES INC DATE OF NAME CHANGE: 19920316 0000822632 S000008598 William Blair Income Fund C000023533 Class N WBRRX 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USGSE US N 2 2023-04-01 Fixed 6.00000000 N N N N N N 2021-01-21 WILLIAM BLAIR FUNDS John Raczek John Raczek Principal Financial Officer