0001193125-19-302699.txt : 20191127 0001193125-19-302699.hdr.sgml : 20191127 20191127170427 ACCESSION NUMBER: 0001193125-19-302699 CONFORMED SUBMISSION TYPE: 497K PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20191127 DATE AS OF CHANGE: 20191127 EFFECTIVENESS DATE: 20191127 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: 191258859 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 0000225635 S000002334 BlackRock National Municipal Fund C000006118 Investor A C000006120 Investor C1 C000006121 Institutional C000038033 Investor C C000100249 Service Shares C000100250 Class K 497K 1 d811175d497k.htm BLACKROCK NATIONAL MUNICIPAL FUND BlackRock National Municipal Fund

BLACKROCK MUNICIPAL BOND FUND, INC.

BlackRock High Yield Municipal Fund

BlackRock National Municipal Fund

(each, a “Fund” and together the “Funds”)

Supplement dated November 27, 2019 to the Summary Prospectuses, Prospectuses

and Statement of Additional Information of the Funds,

each dated October 28, 2019, as supplemented to date

Effective immediately, the following changes are made to each Fund’s Summary Prospectuses and Prospectuses, as applicable:

The last sentence of the final paragraph in the section of each Summary Prospectus of BlackRock High Yield Municipal Fund entitled “Key Facts About BlackRock High Yield Municipal Fund—Principal Investment Strategies of the Fund,” and the section of each Prospectus of BlackRock High Yield Municipal Fund entitled “Fund Overview—Key Facts About BlackRock High Yield Municipal Fund—Principal Investment Strategies of the Fund” is deleted in its entirety and replaced with the following:

The Fund will primarily invest in municipal bonds that have a maturity of five years or longer.

The last sentence of the second paragraph in the section of each Summary Prospectus of BlackRock National Municipal Fund entitled “Key Facts About BlackRock National Municipal Fund—Principal Investment Strategies of the Fund” and the section of each Prospectus of BlackRock National Municipal Fund entitled “Fund Overview—Key Facts About BlackRock National Municipal Fund—Principal Investment Strategies of the Fund” is deleted in its entirety and replaced with the following:

The Fund will primarily invest in municipal bonds that have a maturity of five years or longer.

The second sentence of the third paragraph in the section of each Prospectus of BlackRock High Yield Municipal Fund entitled “Details About the Funds—How Each Fund Invests—High Yield Fund—Principal Investment Strategies” is deleted in its entirety and replaced with the following:

The Fund will primarily invest in municipal bonds that have a maturity of five years or longer.

The last sentence of the second paragraph in the section of each of the Investor A, Investor C, Institutional, Class K and Investor C1 Shares Prospectuses of BlackRock National Municipal Fund entitled “Details About the Funds—How Each Fund Invests—National Fund—Principal Investment Strategies” is deleted in its entirety and replaced with the following:

The Fund will primarily invest in municipal bonds that have a maturity of five years or longer.

The last sentence of the second paragraph in the section of the Service Shares Prospectus of BlackRock National Municipal Fund entitled “Details About the Fund—How The Fund Invests—Principal Investment Strategies” is deleted in its entirety and replaced with the following:

The Fund will primarily invest in municipal bonds that have a maturity of five years or longer.

Effective immediately, the following changes are made to the Funds’ Statement of Additional Information (“SAI”):

The third sentence of the second paragraph in the section of the SAI entitled “I. Investment Objective and Policies—Investment Policies of the Funds—National Fund” is deleted in its entirety and replaced with the following:

The Fund will primarily invest in Municipal Bonds having a maturity of five years or longer.

The second sentence of the first paragraph in the section of the SAI entitled “I. Investment Objective and Policies—Investment Policies of the Funds—High Yield Fund” is deleted in its entirety and replaced with the following:

The Fund will primarily invest in Municipal Bonds that have a maturity of five years or longer.

Shareholders should retain this Supplement for future reference.

PR2SAI-10051-1119SUP

 

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