<PAGE>
WEITZ SERIES FUND, INC.
Supplement dated March 1, 2000 to the
Statement of Additional Information dated July 30, 1999
The fee table included in the first paragraph of the caption "THE ADMINISTRATOR"
on page 25 of the Statement of Additional Information is amended in its entirety
to read as follows:
ASSET BREAK POINTS
<TABLE>
<CAPTION>
Greater Than Less Than % of NAV Minimum
------------ --------- -------- ---------
<S> <C> <C> <C>
$0 $25,000,000 0.200% $25,000
25,000,000 100,000,000 0.175%
100,000,000 500,000,000 0.150%
500,000,000 0.050%
</TABLE>
