APEX MUNICIPAL FUND, INC.
 
As filed with the Securities and Exchange Commission on January 7, 2003
 
PROXY STATEMENT PURSUANT
TO SECTION 14(A) OF THE SECURITIES
EXCHANGE ACT OF 1934 (AMENDMENT NO.     )
 
 
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Soliciting Material Pursuant to Rule 14a-12
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Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
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Definitive Additional Materials
 
APEX MUNICIPAL FUND, INC.
MUNIHOLDINGS CALIFORNIA INSURED FUND, INC.
MUNIHOLDINGS INSURED FUND II, INC.
MUNIINSURED FUND, INC.
 
P.O. Box 9011, Princeton, New Jersey 08543-9011
(Name of Registrant as Specified in Its Charter)
 
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
 
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Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.
 
 
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NOTICE TO HOLDERS OF
APEX MUNICIPAL FUND, INC.
MUNIHOLDINGS CALIFORNIA INSURED FUND, INC.
MUNIHOLDINGS INSURED FUND II, INC.
MUNIINSURED FUND, INC.
 
January 7, 2003
 
Dear Stockholder:
 
It has been brought to our attention that important information was inadvertently omitted from the proxy statement previously mailed to you. Enclosed please find information concerning the Director nominees. If after reviewing this information, you wish to recast your vote, please do so using the enclosed proxy card.
 
We regret the error and apologize for any inconvenience it may have caused.