William Blair Mutual Funds, Inc.
Supplement to Prospectus
May 1, 1995
HOW TO PURCHASE
The minimum investment amounts set forth in the third paragraph on page 32
and in the paragraphs under the Dividend Reinvestment Plan and the Cash
Dividend Plan on page 33 and the PreAuthorized Check Plan on page 34,
are changed to the following:
The minimum initial investment for all funds is $5,000 ($2,000 for IRAs).
The minimum for any subsequent investment is generally $1,000, except Ready
Reserves Fund, for which the subsequent minimum is $1. The portfolios may
accept smaller amounts under a group payroll deduction or similar plan.
These minimum amounts may be changed at any time and may be waived for
directors, principals, officers or employees of the Fund or Adviser.
PREAUTHORIZED CHECK PLAN
An investor may specify an amount (a minimum of $250) that is to be invested
on the 5th and/or 20th of each month, and instruct State Street Bank to send
preauthorized checks for that amount to the investor's bank automatically.
In all other respects this plan is the same as the Dividend Reinvestment Plan.
Supplement dated January 1, 1996
