SEC EDGAR Filing Information

Form 497 -- Definitive materials

Filing Date Changed: 2008-09-30
Effectiveness Date: 2008-09-30
Documents: 1
SEC Accession No.
0000913849-08-000549
Filing date: 2008-09-30
Accepted: 2008-09-30 17:11:14

Table of submitted documents:

Seq Type Document Size Description
1 497 r497_093008.htm 89960 RULE 497
0000913849-08-000549.txt 93565 Complete submission text file

Series and Classes/Contracts Information:

CIK
Series Ticker
Class/Contract Status Name Symbol
Existing
0000822632
S000008602William Blair Small Cap Growth Fund
C000023540Class NWBSNX
C000023541Class IWBSIX
0000822632
S000008603William Blair Small-Mid Cap Growth Fund
C000023542Class N
C000023543Class IWSMDX
0000822632
S000008606William Blair International Equity Fund
C000023547Class NWIENX
C000023548Class IWIEIX
0000822632
S000008607William Blair Institutional International Equity Fund
C000023549Institutional ClassWIIEX
0000822632
S000010050William Blair Mid Cap Growth Fund
C000027836Class N
C000027837Class I
0000822632
S000021052William Blair Emerging Leaders Growth Fund
C000059867Class I
C000059868Institutional Class

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.: 081097858
Business Address
222 W ADAMS ST
CHICAGO IL 60606
3123648000
 Mailing Address
222 W ADAMS STREET
CHICAGO IL 60606