<SEC-DOCUMENT>0001193125-15-363965-index.html : 20151103 <SEC-HEADER>0001193125-15-363965.hdr.sgml : 20151103 <ACCEPTANCE-DATETIME>20151103132504 ACCESSION NUMBER: 0001193125-15-363965 CONFORMED SUBMISSION TYPE: 497K PUBLIC DOCUMENT COUNT: 4 FILED AS OF DATE: 20151103 DATE AS OF CHANGE: 20151103 EFFECTIVENESS DATE: 20151103 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BLACKROCK MUNICIPAL BOND FUND, INC. CENTRAL INDEX KEY: 0000225635 IRS NUMBER: 132896246 STATE OF INCORPORATION: NJ FISCAL YEAR END: 0630 FILING VALUES: FORM TYPE: 497K SEC ACT: 1933 Act SEC FILE NUMBER: 002-57354 FILM NUMBER: 151193127 BUSINESS ADDRESS: STREET 1: 100 BELLEVUE PARKWAY CITY: WILMINGTON STATE: DE ZIP: 19809 BUSINESS PHONE: 800-441-7762 MAIL ADDRESS: STREET 1: 100 BELLEVUE PARKWAY CITY: WILMINGTON STATE: DE ZIP: 19809 FORMER COMPANY: FORMER CONFORMED NAME: MERRILL LYNCH MUNICIPAL BOND FUND INC DATE OF NAME CHANGE: 19920703 FORMER COMPANY: FORMER CONFORMED NAME: ONE LIBERTY MUNICIPAL BOND FUND INC DATE OF NAME CHANGE: 19780622 <SERIES-AND-CLASSES-CONTRACTS-DATA> <EXISTING-SERIES-AND-CLASSES-CONTRACTS> <SERIES> <OWNER-CIK>0000225635 <SERIES-ID>S000002334 <SERIES-NAME>BlackRock National Municipal Fund <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000100249 <CLASS-CONTRACT-NAME>Service Shares </CLASS-CONTRACT> </SERIES> </EXISTING-SERIES-AND-CLASSES-CONTRACTS> </SERIES-AND-CLASSES-CONTRACTS-DATA> </SEC-HEADER> <DOCUMENT> <TYPE>497K <SEQUENCE>1 <FILENAME>d52955d497k.htm <DESCRIPTION>BLACKROCK NATIONAL MUNICIPAL FUND <TEXT> Document 1 - file: d52955d497k.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>g52955backcover_restyle.gif <DESCRIPTION>GRAPHIC <TEXT> Document 2 - file: g52955backcover_restyle.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>g52955c000100249_dgf.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 3 - file: g52955c000100249_dgf.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>g52955frontcover_restyle.gif <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: g52955frontcover_restyle.gif
</DOCUMENT> </SEC-DOCUMENT>