SEC EDGAR Filing Information

Form 497 -- Definitive materials

Filing Date Changed: 2008-10-22
Effectiveness Date: 2008-10-23
Documents: 1
SEC Accession No.
0000913849-08-000579
Filing date: 2008-10-23
Accepted: 2008-10-22 17:45:15

Table of submitted documents:

Seq Type Document Size Description
1 497 r497_102208.htm 8014 RULE 497
0000913849-08-000579.txt 9976 Complete submission text file

Series and Classes/Contracts Information:

CIK
Series Ticker
Class/Contract Status Name Symbol
Existing
0000822632
S000008599William Blair Ready Reserves Fund
C000023535Class NWBRXX
C000072282Class I

Filer Information:

WILLIAM BLAIR FUNDS (Filer) (0000822632)
IRS No.: 000000000 | State of Incorp.: | Fiscal Year End: 1231
Type: 497 | Act: 33 | File No.: 033-17463 | Film No.: 081135886
Business Address
222 W ADAMS ST
CHICAGO IL 60606
3123648000
 Mailing Address
222 W ADAMS STREET
CHICAGO IL 60606