0001193125-22-195817.txt : 20220718 0001193125-22-195817.hdr.sgml : 20220718 20220718080726 ACCESSION NUMBER: 0001193125-22-195817 CONFORMED SUBMISSION TYPE: 497 PUBLIC DOCUMENT COUNT: 13 FILED AS OF DATE: 20220718 DATE AS OF CHANGE: 20220718 EFFECTIVENESS DATE: 20220718 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BlackRock Funds IV CENTRAL INDEX KEY: 0001738074 IRS NUMBER: 000000000 STATE OF INCORPORATION: MA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 333-224373 FILM NUMBER: 221088171 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 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BlackRock Funds VI CENTRAL INDEX KEY: 0001738080 IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 333-224374 FILM NUMBER: 221088181 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 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BLACKROCK LARGE CAP FOCUS VALUE FUND, INC. CENTRAL INDEX KEY: 0000216557 IRS NUMBER: 132895755 STATE OF INCORPORATION: MD FISCAL YEAR END: 0630 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 002-58521 FILM NUMBER: 221088186 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: BLACKROCK BASIC VALUE FUND, INC. DATE OF NAME CHANGE: 20061002 FORMER COMPANY: FORMER CONFORMED NAME: MERRILL LYNCH BASIC VALUE FUND INC DATE OF NAME CHANGE: 19920703 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: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 002-57354 FILM NUMBER: 221088190 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 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BlackRock Series Fund, Inc. CENTRAL INDEX KEY: 0000319108 IRS NUMBER: 133051800 STATE OF INCORPORATION: MD FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 002-69062 FILM NUMBER: 221088193 BUSINESS ADDRESS: STREET 1: 100 BELEVUE PARKWAY CITY: WILMINGTON STATE: DE ZIP: 19809 BUSINESS PHONE: 800-441-7762 MAIL ADDRESS: STREET 1: 100 BELEVUE PARKWAY CITY: WILMINGTON STATE: DE ZIP: 19809 FORMER COMPANY: FORMER CONFORMED NAME: FAM Series Fund, Inc. DATE OF NAME CHANGE: 20050720 FORMER COMPANY: FORMER CONFORMED NAME: MERRILL LYNCH SERIES FUNDS INC DATE OF NAME CHANGE: 20000229 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BlackRock Variable Series Funds, Inc. CENTRAL INDEX KEY: 0000355916 IRS NUMBER: 133093080 STATE OF INCORPORATION: MD FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 002-74452 FILM NUMBER: 221088176 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: FAM Variable Series Funds, Inc. DATE OF NAME CHANGE: 20050720 FORMER COMPANY: FORMER CONFORMED NAME: MERRILL LYNCH VARIABLE SERIES FUNDS INC DATE OF NAME CHANGE: 19920703 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BLACKROCK NATURAL RESOURCES TRUST CENTRAL INDEX KEY: 0000766555 IRS NUMBER: 136857277 STATE OF INCORPORATION: MA FISCAL YEAR END: 0731 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 002-97095 FILM NUMBER: 221088192 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 NATURAL RESOURCES TRUST / DATE OF NAME CHANGE: 20001031 FORMER COMPANY: FORMER CONFORMED NAME: MERRILL LYNCH GLOBAL RESOURCES TRUST / DATE OF NAME CHANGE: 19940325 FORMER COMPANY: FORMER CONFORMED NAME: MERRILL LYNCH NATURAL RESOURCES TRUST DATE OF NAME CHANGE: 19920703 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BLACKROCK MULTI STATE MUNICIPAL SERIES TRUST CENTRAL INDEX KEY: 0000774013 IRS NUMBER: 226437104 STATE OF INCORPORATION: MA FISCAL YEAR END: 0731 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 002-99473 FILM NUMBER: 221088189 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 MULTI STATE MUNICIPAL SERIES TRUST DATE OF NAME CHANGE: 20051212 FORMER COMPANY: FORMER CONFORMED NAME: MERRILL LYNCH N Y MUNI BD FD OF M L MULTI ST MUNI SER TRUST DATE OF NAME CHANGE: 19930225 FORMER COMPANY: FORMER CONFORMED NAME: MERRILL LYNCH MULTI STATE TAX EXEMPT SERIES TRUST DATE OF NAME CHANGE: 19871206 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BLACKROCK MUNICIPAL SERIES TRUST CENTRAL INDEX KEY: 0000799113 IRS NUMBER: 226419427 STATE OF INCORPORATION: MA FISCAL YEAR END: 1031 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 033-08058 FILM NUMBER: 221088191 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: BLACKROCK INTERMEDIATE MUNICIPAL FUND OF BLACKROCK MUNICIPAL SERIES TRUST DATE OF NAME CHANGE: 20061002 FORMER COMPANY: FORMER CONFORMED NAME: MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND OF MERRILL LYNCH MUNICIPAL SERIES TRUST DATE OF NAME CHANGE: 20051216 FORMER COMPANY: FORMER CONFORMED NAME: MERRILL LYNCH MUN INTERM TERM FD OF ML MUN SER TR DATE OF NAME CHANGE: 19931123 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BLACKROCK GLOBAL ALLOCATION FUND, INC. CENTRAL INDEX KEY: 0000834237 IRS NUMBER: 222937779 STATE OF INCORPORATION: MD FISCAL YEAR END: 1031 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 033-22462 FILM NUMBER: 221088183 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 GLOBAL ALLOCATION FUND INC DATE OF NAME CHANGE: 19920703 FORMER COMPANY: FORMER CONFORMED NAME: MERRILL LYNCH GLOBAL INCOME FUND INC DATE OF NAME CHANGE: 19890706 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BlackRock Strategic Global Bond Fund, Inc. CENTRAL INDEX KEY: 0000835620 IRS NUMBER: 000000000 STATE OF INCORPORATION: MD FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 033-42681 FILM NUMBER: 221088173 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: BLACKROCK WORLD INCOME FUND, INC. DATE OF NAME CHANGE: 20061002 FORMER COMPANY: FORMER CONFORMED NAME: MERRILL LYNCH WORLD INCOME FUND INC DATE OF NAME CHANGE: 19920703 FORMER COMPANY: FORMER CONFORMED NAME: WORLD INCOME FUND INC DATE OF NAME CHANGE: 19910916 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BLACKROCK MID-CAP VALUE SERIES, INC. CENTRAL INDEX KEY: 0000918848 IRS NUMBER: 000000000 STATE OF INCORPORATION: MD FISCAL YEAR END: 0430 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 033-53887 FILM NUMBER: 221088188 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: BLACKROCK MID CAP DIVIDEND SERIES, INC. DATE OF NAME CHANGE: 20170612 FORMER COMPANY: FORMER CONFORMED NAME: BLACKROCK MID CAP VALUE OPPORTUNITIES SERIES INC. DATE OF NAME CHANGE: 20061002 FORMER COMPANY: FORMER CONFORMED NAME: ASSET PROGRAM INC DATE OF NAME CHANGE: 20000203 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BLACKROCK INDEX FUNDS, INC. CENTRAL INDEX KEY: 0001026144 IRS NUMBER: 223483675 STATE OF INCORPORATION: MD FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 333-15265 FILM NUMBER: 221088184 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 INDEX FUNDS INC DATE OF NAME CHANGE: 19961031 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BLACKROCK SERIES, INC. CENTRAL INDEX KEY: 0001062806 IRS NUMBER: 000000000 STATE OF INCORPORATION: MD FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 333-56203 FILM NUMBER: 221088172 BUSINESS ADDRESS: STREET 1: 100 BELLEVUE PARKWAY CITY: WILMINGTON STATE: DE ZIP: 09809 BUSINESS PHONE: 800-441-7762 MAIL ADDRESS: STREET 1: 100 BELLEVUE PARKWAY CITY: WILMINGTON STATE: DE ZIP: 09809 FORMER COMPANY: FORMER CONFORMED NAME: MERCURY FUNDS INC DATE OF NAME CHANGE: 20010827 FORMER COMPANY: FORMER CONFORMED NAME: MERCURY ASSET MANAGEMENT FUNDS INC DATE OF NAME CHANGE: 19980714 FORMER COMPANY: FORMER CONFORMED NAME: MERCURY ALPHA FUND INC DATE OF NAME CHANGE: 19980601 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BLACKROCK LARGE CAP SERIES FUNDS, INC. CENTRAL INDEX KEY: 0001097077 IRS NUMBER: 000000000 STATE OF INCORPORATION: MD FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 333-89389 FILM NUMBER: 221088187 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 LARGE CAP SERIES FUNDS INC DATE OF NAME CHANGE: 19991018 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BLACKROCK LARGE CAP FOCUS GROWTH FUND, INC. CENTRAL INDEX KEY: 0001097293 IRS NUMBER: 223711535 STATE OF INCORPORATION: MD FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 333-89775 FILM NUMBER: 221088185 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: BLACKROCK FOCUS GROWTH FUND, INC. DATE OF NAME CHANGE: 20071219 FORMER COMPANY: FORMER CONFORMED NAME: BLACKROCK FOCUS Growth FUND, INC. DATE OF NAME CHANGE: 20071219 FORMER COMPANY: FORMER CONFORMED NAME: BLACKROCK FOCUS TWENTY FUND, INC. DATE OF NAME CHANGE: 20061002 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Managed Account Series CENTRAL INDEX KEY: 0001323737 IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 0412 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 333-124463 FILM NUMBER: 221088178 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 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BlackRock Unconstrained Equity Fund CENTRAL INDEX KEY: 0001324285 IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 0418 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 333-124372 FILM NUMBER: 221088175 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: BlackRock Long-Horizon Equity Fund DATE OF NAME CHANGE: 20121015 FORMER COMPANY: FORMER CONFORMED NAME: BLACKROCK LONG-HORIZON EQUITY FUND DATE OF NAME CHANGE: 20121015 FORMER COMPANY: FORMER CONFORMED NAME: BlackRock Global Dynamic Equity Fund DATE OF NAME CHANGE: 20061002 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BlackRock Variable Series Funds II, Inc. CENTRAL INDEX KEY: 0001738072 IRS NUMBER: 000000000 STATE OF INCORPORATION: MD FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 333-224376 FILM NUMBER: 221088177 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 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BlackRock Series Fund II, Inc. CENTRAL INDEX KEY: 0001738073 IRS NUMBER: 000000000 STATE OF INCORPORATION: MD FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 333-224375 FILM NUMBER: 221088194 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 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BlackRock Funds V CENTRAL INDEX KEY: 0001738078 IRS NUMBER: 000000000 STATE OF INCORPORATION: MA FISCAL YEAR END: 0930 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 333-224371 FILM NUMBER: 221088180 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 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Managed Account Series II CENTRAL INDEX KEY: 0001738079 IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 333-224372 FILM NUMBER: 221088179 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 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BLACKROCK SUSTAINABLE BALANCED FUND, INC. CENTRAL INDEX KEY: 0000110055 IRS NUMBER: 132757134 STATE OF INCORPORATION: MD FISCAL YEAR END: 0930 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 002-49007 FILM NUMBER: 221088174 BUSINESS ADDRESS: STREET 1: 100 BELLEVUE PARKWAY CITY: WILMINGTON STATE: DE ZIP: 08536 BUSINESS PHONE: 800-441-7762 MAIL ADDRESS: STREET 1: 100 BELLEVUE PARKWAY CITY: WILMINGTON STATE: DE ZIP: 08536 FORMER COMPANY: FORMER CONFORMED NAME: BLACKROCK BALANCED CAPITAL FUND, INC. DATE OF NAME CHANGE: 20061002 FORMER COMPANY: FORMER CONFORMED NAME: MERRILL LYNCH BALANCED CAPITAL FUND INC DATE OF NAME CHANGE: 20051214 FORMER COMPANY: FORMER CONFORMED NAME: MERRILL LYNCH BALANCE CAPITAL FUND INC DATE OF NAME CHANGE: 20000831 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BLACKROCK FUNDS VII, INC. CENTRAL INDEX KEY: 0000202741 IRS NUMBER: 132866632 STATE OF INCORPORATION: MD FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 002-56978 FILM NUMBER: 221088182 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: BLACKROCK ASIAN DRAGON FUND, INC. DATE OF NAME CHANGE: 20171031 FORMER COMPANY: FORMER CONFORMED NAME: BLACKROCK PACIFIC FUND, INC. DATE OF NAME CHANGE: 20061002 FORMER COMPANY: FORMER CONFORMED NAME: MERRILL LYNCH PACIFIC FUND INC DATE OF NAME CHANGE: 19920703 0000110055 S000002175 BLACKROCK SUSTAINABLE BALANCED FUND, INC. C000005578 Investor A C000005580 Investor C C000005581 Institutional C000005582 Class R C000199764 Class K 0000202741 S000002248 BlackRock Sustainable Emerging Markets Equity Fund C000005805 Investor A C000005808 Institutional C000005809 Class R C000198217 Class K 0000202741 S000073892 BlackRock Sustainable U.S. Growth Equity Fund C000231153 BlackRock Sustainable U.S. Growth Equity Fund - Institutional Shares C000231154 BlackRock Sustainable U.S. Growth Equity Fund - Class K Shares C000231155 BlackRock Sustainable U.S. Growth Equity Fund - Investor A Shares 0000202741 S000073893 BlackRock Sustainable U.S. Value Equity Fund C000231156 BlackRock Sustainable U.S. Value Equity Fund - Class K Shares C000231157 BlackRock Sustainable U.S. Value Equity Fund - Institutional Shares C000231158 BlackRock Sustainable U.S. Value Equity Fund - Investor A Shares 0000202741 S000073894 BlackRock Sustainable International Equity Fund C000231159 BlackRock Sustainable International Equity Fund - Class K Shares C000231160 BlackRock Sustainable International Equity Fund - Institutional Shares C000231161 BlackRock Sustainable International Equity Fund - Investor A Shares 0000216557 S000002321 BLACKROCK LARGE CAP FOCUS VALUE FUND, INC. C000006074 Investor A C000006076 Investor C C000006077 Institutional C000007847 Class R C000152172 Class K Shares 0000225635 S000002334 BlackRock National Municipal Fund C000006118 Investor A C000006121 Institutional C000038033 Investor C C000100249 Service Shares C000100250 Class K 0000225635 S000002335 BlackRock Short-Term Municipal Fund C000006122 Investor A1 C000006124 Investor C C000006125 Institutional C000038034 Investor A C000038035 Class K Shares 0000225635 S000011867 BlackRock High Yield Municipal Fund C000032425 Investor A C000032427 Investor C C000032428 Institutional C000199786 Class K 0000225635 S000075512 BlackRock Impact Municipal Fund C000234660 Investor A C000234661 Institutional C000234662 Class K 0000319108 S000003863 BlackRock Sustainable Balanced Portfolio C000010829 BlackRock Sustainable Balanced Portfolio 0000319108 S000003864 BlackRock Advantage Large Cap Core Portfolio C000010830 BlackRock Advantage Large Cap Core Portfolio 0000319108 S000003866 BlackRock Global Allocation Portfolio C000010832 BlackRock Global Allocation Portfolio 0000319108 S000003867 BlackRock Capital Appreciation Portfolio C000010833 BlackRock Capital Appreciation Portfolio 0000355916 S000002874 BlackRock Managed Volatility V.I. Fund C000007899 Class I C000007901 Class III 0000355916 S000002875 BlackRock S&P 500 Index V.I. Fund C000007902 Class I C000007903 Class II C000007904 Class III 0000355916 S000002876 BlackRock Advantage Large Cap Core V.I. Fund C000007905 Class I C000007906 Class II C000007907 Class III 0000355916 S000002877 BlackRock Large Cap Focus Growth V.I. Fund C000007908 Class I C000007910 Class III 0000355916 S000002878 BlackRock Advantage Large Cap Value V.I. Fund C000007911 Class I C000007912 Class II C000007913 Class III 0000355916 S000002879 BlackRock Advantage SMID Cap V.I. Fund C000007914 Class I C000007915 Class II C000007916 Class III 0000355916 S000002880 BlackRock Equity Dividend V.I. Fund C000007917 Class I C000007919 Class III 0000355916 S000002881 BlackRock International V.I. Fund C000007920 Class I 0000355916 S000002882 BlackRock Basic Value V.I. Fund C000007923 Class I C000007924 Class II C000007925 Class III 0000355916 S000002885 BlackRock Capital Appreciation V.I. Fund C000007932 Class I C000007934 Class III 0000355916 S000002887 BlackRock Global Allocation V.I. Fund C000007938 Class I C000007939 Class II C000007940 Class III 0000355916 S000045356 BlackRock 60/40 Target Allocation ETF V.I. Fund C000141138 Class I C000141139 Class III 0000355916 S000059909 BlackRock International Index V.I. Fund C000195945 Class I C000225417 Class III 0000355916 S000059910 BlackRock Small Cap Index V.I. Fund C000195946 Class I C000225418 Class III 0000766555 S000002176 BLACKROCK NATURAL RESOURCES TRUST C000005583 Investor A C000005585 Investor C C000005586 Institutional 0000774013 S000004033 BlackRock New Jersey Municipal Bond Fund C000011309 Investor A1 C000011312 Institutional C000038245 Investor A C000038247 Investor C C000038248 Service C000199769 Class K 0000774013 S000004034 BlackRock New York Municipal Opportunities Fund C000011313 Investor A1 C000011316 Institutional C000038358 Investor A C000038359 Investor C C000199771 Class K 0000774013 S000004035 BlackRock Pennsylvania Municipal Bond Fund C000011317 Investor A1 C000011320 Institutional C000038303 Investor A C000038305 Investor C C000038306 Service C000199770 Class K 0000799113 S000004053 BlackRock Strategic Municipal Opportunities Fund of BlackRock Municipal Series Trust C000011339 Investor A1 C000011342 Institutional C000038983 Investor A C000038984 Investor C C000199785 Class K 0000834237 S000002245 BLACKROCK GLOBAL ALLOCATION FUND, INC. C000005790 Investor A C000005792 Investor C C000005793 Institutional C000005794 Class R C000172904 Class K 0000835620 S000002866 BlackRock Strategic Global Bond Fund, Inc. C000007879 Investor A C000007882 Institutional C000038980 Investor C C000162768 Class K 0000918848 S000002541 BlackRock Mid-Cap Value Fund C000006998 Investor A C000007000 Investor C C000007001 Institutional C000007002 Class R C000199762 Class K 0001026144 S000003116 iShares MSCI EAFE International Index Fund C000008447 Investor A C000008448 Institutional C000099168 Class K C000201956 Investor P Shares 0001026144 S000003118 iShares Russell 2000 Small-Cap Index Fund C000008451 Investor A C000008452 Institutional C000099169 Class K C000201957 Investor P Shares 0001062806 S000002291 BlackRock International Fund C000005981 Investor A C000005983 Investor C C000005984 Institutional C000101856 Class R Shares C000198221 Class K 0001097077 S000001973 BlackRock Advantage Large Cap Core Fund C000005171 Investor A C000005173 Investor C C000005174 Institutional C000005175 Class R C000198228 Class K 0001097077 S000001975 BlackRock Advantage Large Cap Value Fund C000005181 Investor A C000005183 Investor C C000005184 Institutional C000005185 Class R C000198229 Class K 0001097077 S000018499 BlackRock Event Driven Equity Fund C000051319 Investor A C000051320 Investor C C000051321 Institutional 0001097293 S000002344 BLACKROCK LARGE CAP FOCUS GROWTH FUND, INC. C000006151 Investor A C000006153 Investor C C000006154 Institutional C000213874 Class K 0001323737 S000057851 BlackRock GA Disciplined Volatility Equity Fund C000186831 Class K C000206473 Institutional 0001323737 S000057852 BlackRock GA Dynamic Equity Fund C000186832 Class K C000206474 Institutional 0001324285 S000002718 BlackRock Unconstrained Equity Fund C000007412 Investor A C000007414 Investor C C000007415 Institutional C000047292 Class R 0001738072 S000062376 BlackRock High Yield V.I. Fund C000202342 Class I C000202343 Class III 0001738072 S000062377 BlackRock Total Return V.I. Fund C000202344 Class I C000202345 Class III 0001738072 S000062378 BlackRock U.S. Government Bond V.I. Fund C000202346 Class I C000202347 Class III 0001738073 S000062374 BlackRock High Yield Portfolio C000202340 BlackRock High Yield Portfolio 0001738073 S000062375 BlackRock U.S. Government Bond Portfolio C000202341 BlackRock U.S. Government Bond Portfolio 0001738074 S000062369 BlackRock Systematic Multi-Strategy Fund C000202321 Investor A Shares C000202322 Investor C Shares C000202323 Institutional Shares C000222461 Class K 0001738074 S000062370 BlackRock Global Long/Short Credit Fund C000202324 Investor A Shares C000202325 Investor C Shares C000202326 Institutional Shares C000202327 Class K Shares 0001738074 S000062371 BlackRock Sustainable Advantage CoreAlpha Bond Fund C000202328 Institutional Shares C000202329 Class K Shares C000202330 Investor A Shares C000202331 Investor C Shares 0001738078 S000062356 BlackRock Income Fund C000202256 Investor A Shares C000202257 Investor C Shares C000202258 Institutional Shares C000202259 Class K Shares 0001738078 S000062357 BlackRock Sustainable Emerging Markets Flexible Bond Fund C000202260 Investor A Shares C000202261 Investor C Shares C000202262 Institutional Shares C000202263 Class K Shares 0001738078 S000062358 BlackRock Strategic Income Opportunities Portfolio C000202264 Investor A Shares C000202265 Investor C Shares C000202266 Institutional Shares C000202267 Class K Shares 0001738078 S000062359 BlackRock Floating Rate Income Portfolio C000202268 Investor A Shares C000202269 Investor C Shares C000202270 Institutional Shares C000202272 Class K Shares 0001738078 S000062360 BlackRock High Yield Bond Portfolio C000202273 Service Shares C000202275 Investor A Shares C000202276 Investor C Shares C000202277 Institutional Shares C000202278 Class R Shares C000202279 Class K Shares 0001738078 S000062361 BlackRock Low Duration Bond Portfolio C000202280 Investor A Shares C000202281 Investor C Shares C000202282 Institutional Shares C000202283 Class R Shares C000202284 Class K Shares C000202286 Investor A1 Shares 0001738078 S000062362 BlackRock Core Bond Portfolio C000202289 Investor A Shares C000202290 Investor C Shares C000202291 Institutional Shares C000202292 Class R Shares C000202293 Class K Shares 0001738078 S000062363 BlackRock GNMA Portfolio C000202295 Investor A Shares C000202296 Investor C Shares C000202297 Institutional Shares C000202298 Class K Shares 0001738078 S000062364 BlackRock U.S. Government Bond Portfolio C000202301 Investor A Shares C000202302 Investor C Shares C000202303 Institutional Shares C000202304 Class R Shares C000202305 Class K Shares 0001738078 S000062365 BlackRock Inflation Protected Bond Portfolio C000202308 Investor A Shares C000202309 Investor C Shares C000202310 Institutional Shares C000202311 Class K Shares 0001738078 S000062366 BlackRock Sustainable Emerging Markets Bond Fund C000202314 Institutional Shares C000202315 Class K Shares 0001738078 S000072568 BlackRock Sustainable High Yield Bond Fund C000228901 Investor A C000228902 Institutional C000228903 Class K 0001738078 S000073723 BlackRock Sustainable Low Duration Bond Fund C000230836 Institutional C000230837 Class K C000230838 Investor A 0001738079 S000062368 BlackRock U.S. Mortgage Portfolio C000202318 Investor A Shares C000202319 Investor C Shares C000202320 Institutional Shares 0001738080 S000062373 BlackRock Advantage CoreAlpha Bond Fund C000202336 Investor A Shares C000202337 Investor C Shares C000202338 Institutional Shares C000202339 Class K Shares 497 1 d373668d497.htm BLACKROCK FUNDS IV BlackRock Funds IV

BlackRock Funds IV
BlackRock Advantage SMID Cap Fund, Inc.
BlackRock Allocation Target Shares
BATS: Series A Portfolio
BATS: Series C Portfolio
BATS: Series E Portfolio
BATS: Series M Portfolio
BATS: Series P Portfolio
BATS: Series S Portfolio
BATS: Series V Portfolio
BlackRock Bond Fund, Inc.
BlackRock Sustainable Total Return Fund
BlackRock Total Return Fund
BlackRock California Municipal Series Trust
BlackRock California Municipal Opportunities Fund
BlackRock Capital Appreciation Fund, Inc.
BlackRock Emerging Markets Fund, Inc.
BlackRock Equity Dividend Fund
BlackRock EuroFund
BlackRock FundsSM
BlackRock Advantage Emerging Markets Fund
BlackRock Advantage International Fund
BlackRock Advantage Large Cap Growth Fund
BlackRock Advantage Small Cap Core Fund
BlackRock Advantage Small Cap Growth Fund
BlackRock China A Opportunities Fund
BlackRock Commodity Strategies Fund
BlackRock Defensive Advantage Emerging Markets Fund
BlackRock Defensive Advantage International Fund
BlackRock Defensive Advantage U.S. Fund
BlackRock Energy Opportunities Fund
BlackRock Exchange Portfolio
BlackRock Global Equity Absolute Return Fund
BlackRock Global Impact Fund
BlackRock Global Long/Short Equity Fund
BlackRock Health Sciences Opportunities Portfolio
BlackRock High Equity Income Fund
BlackRock Infrastructure Sustainable Opportunities Fund
BlackRock International Dividend Fund
BlackRock International Impact Fund
BlackRock Mid‑Cap Growth Equity Portfolio
BlackRock Real Estate Securities Fund
BlackRock Short Obligations Fund
BlackRock SMID‑Cap Growth Equity Fund
BlackRock Sustainable Advantage Emerging Markets Equity Fund
BlackRock Sustainable Advantage International Equity Fund
BlackRock Sustainable Advantage Large Cap Core Fund
BlackRock Tactical Opportunities Fund
BlackRock Technology Opportunities Fund
BlackRock Total Factor Fund
BlackRock U.S. Impact Fund
iShares Developed Real Estate Index Fund
iShares Municipal Bond Index Fund
iShares Russell Mid‑Cap Index Fund
iShares Russell Small/Mid‑Cap Index Fund
iShares Short-Term TIPS Bond Index Fund
iShares Total U.S. Stock Market Index Fund
iShares U.S. Intermediate Credit Bond Index Fund
iShares U.S. Intermediate Government Bond Index Fund
iShares U.S. Long Credit Bond Index Fund
iShares U.S. Long Government Bond Index Fund
iShares U.S. Securitized Bond Index Fund
BlackRock Funds II
BlackRock 20/80 Target Allocation Fund
BlackRock 40/60 Target Allocation Fund
BlackRock 60/40 Target Allocation Fund
BlackRock 80/20 Target Allocation Fund
BlackRock Dynamic High Income Portfolio
BlackRock Global Dividend Portfolio
BlackRock Managed Income Fund
BlackRock Multi-Asset Income Portfolio
BlackRock Retirement Income 2030 Fund
BlackRock Retirement Income 2040 Fund
BlackRock Funds III
BlackRock LifePath® Dynamic 2025 Fund
BlackRock LifePath® Dynamic 2030 Fund
BlackRock LifePath® Dynamic 2035 Fund
BlackRock LifePath® Dynamic 2040 Fund
BlackRock LifePath® Dynamic 2045 Fund
BlackRock LifePath® Dynamic 2050 Fund
BlackRock LifePath® Dynamic 2055 Fund
BlackRock LifePath® Dynamic 2060 Fund
BlackRock LifePath® Dynamic 2065 Fund
BlackRock LifePath® Dynamic Retirement Fund
BlackRock LifePath® ESG Index 2025 Fund
 
BlackRock LifePath® ESG Index 2030 Fund
BlackRock LifePath® ESG Index 2035 Fund
BlackRock LifePath® ESG Index 2040 Fund
BlackRock LifePath® ESG Index 2045 Fund
BlackRock LifePath® ESG Index 2050 Fund
BlackRock LifePath® ESG Index 2055 Fund
BlackRock LifePath® ESG Index 2060 Fund
BlackRock LifePath® ESG Index 2065 Fund
BlackRock LifePath® ESG Index Retirement Fund
BlackRock LifePath® Index 2025 Fund
BlackRock LifePath® Index 2030 Fund
BlackRock LifePath® Index 2035 Fund
BlackRock LifePath® Index 2040 Fund
BlackRock LifePath® Index 2045 Fund
BlackRock LifePath® Index 2050 Fund
BlackRock LifePath® Index 2055 Fund
BlackRock LifePath® Index 2060 Fund
BlackRock LifePath® Index 2065 Fund
BlackRock LifePath® Index Retirement Fund
iShares MSCI Total International Index Fund
iShares Russell 1000 Large‑Cap Index Fund
iShares S&P 500 Index Fund
iShares U.S. Aggregate Bond Index Fund
BlackRock Funds IV
BlackRock Global Long/Short Credit Fund
BlackRock Sustainable Advantage CoreAlpha Bond Fund
BlackRock Systematic Multi-Strategy Fund
BlackRock Funds V
BlackRock Core Bond Portfolio
BlackRock Floating Rate Income Portfolio
BlackRock GNMA Portfolio
BlackRock High Yield Bond Portfolio
BlackRock Income Fund
BlackRock Inflation Protected Bond Portfolio
BlackRock Low Duration Bond Portfolio
BlackRock Strategic Income Opportunities Portfolio
BlackRock Sustainable Emerging Markets Bond Fund
BlackRock Sustainable Emerging Markets Flexible Bond Fund
BlackRock Sustainable High Yield Bond Fund
BlackRock Sustainable Low Duration Bond Fund
BlackRock U.S. Government Bond Portfolio
BlackRock Funds VI
BlackRock Advantage CoreAlpha Bond Fund
BlackRock Funds VII, Inc.
BlackRock Sustainable Emerging Markets Equity Fund
BlackRock Sustainable International Equity Fund
BlackRock Sustainable U.S. Growth Equity Fund
BlackRock Sustainable U.S. Value Equity Fund
BlackRock Global Allocation Fund, Inc.
BlackRock Index Funds, Inc.
iShares MSCI EAFE International Index Fund
iShares Russell 2000 Small‑Cap Index Fund
BlackRock Large Cap Focus Growth Fund, Inc.
BlackRock Large Cap Focus Value Fund, Inc.
BlackRock Large Cap Series Funds, Inc.
BlackRock Advantage Large Cap Core Fund
BlackRock Advantage Large Cap Value Fund
BlackRock Event Driven Equity Fund
BlackRock Mid‑Cap Value Series, Inc.
BlackRock Mid‑Cap Value Fund
BlackRock Multi-State Municipal Series Trust
BlackRock New Jersey Municipal Bond Fund
BlackRock New York Municipal Opportunities Fund
BlackRock Pennsylvania Municipal Bond Fund
BlackRock Municipal Bond Fund, Inc.
BlackRock High Yield Municipal Fund
BlackRock Impact Municipal Fund
BlackRock National Municipal Fund
BlackRock Short-Term Municipal Fund
BlackRock Municipal Series Trust
BlackRock Strategic Municipal Opportunities Fund
BlackRock Natural Resources Trust
BlackRock Series Fund, Inc.
BlackRock Advantage Large Cap Core Portfolio
BlackRock Capital Appreciation Portfolio
BlackRock Global Allocation Portfolio
BlackRock Sustainable Balanced Portfolio
BlackRock Series Fund II, Inc.
BlackRock High Yield Portfolio
BlackRock U.S. Government Bond Portfolio
 
 
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BlackRock Series, Inc.
BlackRock International Fund
BlackRock Strategic Global Bond Fund, Inc.
BlackRock Sustainable Balanced Fund, Inc.
BlackRock Unconstrained Equity Fund
BlackRock Variable Series Funds, Inc.
BlackRock 60/40 Target Allocation ETF V.I. Fund
BlackRock Advantage Large Cap Core V.I. Fund
BlackRock Advantage Large Cap Value V.I. Fund
BlackRock Advantage SMID Cap V.I. Fund
BlackRock Basic Value V.I. Fund
BlackRock Capital Appreciation V.I. Fund
BlackRock Equity Dividend V.I. Fund
BlackRock Global Allocation V.I. Fund
BlackRock International Index V.I. Fund
BlackRock International V.I. Fund
BlackRock Large Cap Focus Growth V.I. Fund
BlackRock Managed Volatility V.I. Fund
BlackRock S&P 500 Index V.I. Fund
BlackRock Small Cap Index V.I. Fund
BlackRock Variable Series Funds II, Inc.
BlackRock High Yield V.I. Fund
BlackRock Total Return V.I. Fund
BlackRock U.S. Government Bond V.I. Fund
Managed Account Series
BlackRock GA Disciplined Volatility Equity Fund
BlackRock GA Dynamic Equity Fund
Managed Account Series II
BlackRock U.S. Mortgage Portfolio
 
 
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
The principal risk factor or other risk factor, as applicable, entitled “Leverage Risk” in the section of the Prospectus(es) entitled “Details About the Fund[s]—Investment Risks” for each applicable Fund other than BlackRock Real Estate Securities Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. As an
 
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open‑end investment company registered with the Securities and Exchange Commission (the “SEC”), the Fund is subject to the federal securities laws, including the Investment Company Act of 1940, as amended (the “Investment Company Act”) and the rules thereunder. Under Rule 18f‑4 under the Investment Company Act, among other things, the Fund must either use derivatives in a limited manner or comply with an outer limit on fund leverage risk based on value‑at‑risk. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
The other risk factor entitled “Leverage Risk” in the section of the Prospectus entitled “Details About the Fund—Investment Risks” for BlackRock Real Estate Securities Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. As an open‑end investment company registered with the Securities and Exchange Commission (the “SEC”), the Fund is subject to the federal securities laws, including the Investment Company Act of 1940, as amended (the “Investment Company Act”) and the rules thereunder. Under Rule 18f‑4 under the Investment Company Act, among other things, the Fund must either use derivatives in a limited manner or comply with an outer limit on fund leverage risk based on value‑at‑risk. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. Although the Fund does not intend to borrow for investment purposes, the real estate companies in which it invests may utilize significant leverage.
The following changes are made to Part I of each Fund’s SAI, as applicable:
For each Fund listed in Appendix A, the paragraph discussing the Fund’s fundamental investment restriction on borrowing in the section entitled “Investment Restrictions—Notations Regarding [the] Fund’s Fundamental Investment Restrictions” in Part I of the Fund’s SAI is deleted in its entirety and replaced with the following:
With respect to the fundamental policy relating to borrowing money set forth above, the Investment Company Act permits the Fund to borrow money in amounts of up to one‑third of the Fund’s total assets from banks for any purpose, and to borrow up to 5% of the Fund’s total assets from banks or other lenders for temporary purposes. (The Fund’s total assets include the amounts being borrowed.) In addition, the Fund has received an exemptive order from the SEC permitting it to borrow through the Interfund Lending Program (discussed below), subject to the conditions of the exemptive order. To limit the risks attendant to borrowing, the Investment Company Act requires the Fund to maintain at all times an “asset coverage” of at least 300% of the amount of its borrowings. Asset coverage means the ratio that the value of the Fund’s total assets (including amounts borrowed), minus liabilities other than borrowings, bears to the aggregate amount of all borrowings. Borrowing money to increase portfolio holdings is known as “leveraging.” Certain trading practices and investments, such as reverse repurchase agreements, may be considered to be borrowings or involve leverage and thus are subject to the Investment Company Act restrictions. In accordance with Rule 18f‑4 under the Investment Company Act, when the Fund engages in reverse repurchase agreements and similar financing transactions, the Fund may either (i) maintain asset coverage of at least 300% with respect to such transactions and any other borrowings in the aggregate, or (ii) treat such transactions as “derivatives transactions” and comply with Rule 18f‑4 with respect to such transactions. Short-term credits necessary for the settlement of securities transactions and arrangements with respect to securities lending will not be considered to be borrowings under the policy. Practices and investments that may involve leverage but are not considered to be borrowings are not subject to the policy.
 
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For each Fund listed in Appendix B, the following paragraph is added in the section entitled “Investment Restrictions” in Part I of the Fund’s SAI:
With respect to the fundamental policy relating to issuing senior securities above, the Investment Company Act, including the rules and regulations thereunder, generally prohibits the Fund from issuing senior securities (other than certain temporary borrowings) unless immediately after the issuance the Fund has satisfied an asset coverage requirement with respect to senior securities representing indebtedness prescribed by the Investment Company Act. Certain trading practices and investments, such as derivatives transactions, may be treated as senior securities. Prior to the adoption and implementation of Rule 18f‑4 under the Investment Company Act, when the Fund/Portfolio engaged in a derivatives transaction that creates future payment obligations, consistent with SEC staff guidance and interpretations, the Fund was permitted to segregate or earmark liquid assets, or enter into an offsetting position, in an amount at least equal to the Fund’s exposure, on a mark‑to‑market basis, to the transaction, instead of meeting the asset coverage requirement with respect to senior securities prescribed by the Investment Company Act. The SEC staff guidance and interpretations were rescinded in connection with the adoption of Rule 18f‑4, and the Fund now complies with Rule 18f-4 with respect to its derivatives transactions. Thus, the fundamental policy relating to issuing senior securities above will not restrict the Fund from entering into derivatives transactions that are treated as senior securities so long as the Fund complies with Rule 18f‑4 with respect to such derivatives transactions.
The following changes are made to Part II of each Fund’s SAI:
In light of Rule 18f‑4 under the Investment Company Act of 1940, as amended, all references to segregating, maintaining, setting aside or covering with liquid assets with respect to derivatives transactions including, but not limited to, futures, swaps, options, foreign exchange transactions, forwards, dollar rolls, tender option bonds, reverse repurchase agreements, when-issued securities, delayed delivery securities and forward commitments are deleted from Part II of each Fund’s SAI.
The section entitled “Investment Risks and Considerations—Regulation of Derivatives” in Part II of each Fund’s SAI is deleted in its entirety and replaced with the following:
Regulation of Derivatives.
Rule 18f‑4 Under the Investment Company Act. Rule 18f‑4 under the Investment Company Act permits a Fund to enter into Derivatives Transactions (as defined below) and certain other transactions notwithstanding the restrictions on the issuance of “senior securities” under Section 18 of the Investment Company Act. Section 18 of the Investment Company Act, among other things, prohibits open‑end funds, including the Funds, from issuing or selling any “senior security,” other than borrowing from a bank (subject to a requirement to maintain 300% “asset coverage”).
Under Rule 18f‑4, “Derivatives Transactions” include the following: (1) any swap, security-based swap (including a contract for differences), futures contract, forward contract, option (excluding purchased options), any combination of the foregoing, or any similar instrument, under which a Fund is or may be required to make any payment or delivery of cash or other assets during the life of the instrument or at maturity or early termination, whether as margin or settlement payment or otherwise; (2) any short sale borrowing; (3) reverse repurchase agreements and similar financing transactions (e.g., recourse and non‑recourse tender option bonds, and borrowed bonds), if a Fund elects to treat these transactions as Derivatives Transactions under Rule 18f‑4; and (4) when-issued or forward-settling securities (e.g., firm and standby commitments, including to‑be‑announced (“TBA”) commitments, and dollar rolls) and non‑standard settlement cycle securities, unless such transactions meet the Delayed-Settlement Securities Provision (as defined below under “—When-Issued Securities, Delayed Delivery Securities and Forward Commitments”).
 
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Unless a Fund is relying on the Limited Derivatives User Exception (as defined below), the Fund must comply with Rule 18f‑4 with respect to its Derivatives Transactions. Rule 18f‑4, among other things, requires a Fund to adopt and implement a comprehensive written derivatives risk management program (“DRMP”) and comply with a relative or absolute limit on Fund leverage risk calculated based on value‑at‑risk (“VaR”). The DRMP is administered by a “derivatives risk manager,” who is appointed by the Fund’s Board, including a majority of the independent Directors, and periodically reviews the DRMP and reports to the Fund’s Board.
Rule 18f‑4 provides an exception from the DRMP, VaR limit and certain other requirements if a Fund’s “derivatives exposure” is limited to 10% of its net assets (as calculated in accordance with Rule 18f‑4) and the Fund adopts and implements written policies and procedures reasonably designed to manage its derivatives risks (the “Limited Derivatives User Exception”).
Dodd-Frank Regulations. The Dodd-Frank Wall Street Reform and Consumer Protection Act (“Dodd-Frank”), enacted in July 2010, includes provisions that comprehensively regulate the over‑the‑counter (“OTC”) derivatives markets for the first time. While the Commodity Futures Trading Commission (“CFTC”) and other U.S. regulators have adopted many of the required Dodd-Frank regulations, certain regulations have only recently become effective and other regulations remain to be adopted. The full impact of Dodd-Frank on the Funds remains uncertain.
OTC derivatives dealers are now required to register with the CFTC as “swap dealers” and will ultimately be required to register with the SEC as “security-based swap dealers”. Registered swap dealers are subject to various regulatory requirements, including, but not limited to, margin, recordkeeping, reporting, transparency, position limits, limitations on conflicts of interest, business conduct standards, minimum capital requirements and other regulatory requirements.
The CFTC requires that certain interest rate swaps and certain credit default swaps must be executed in regulated markets and be submitted for clearing to regulated clearinghouses. The SEC is also expected to impose similar requirements on certain security-based derivatives in the future. OTC derivatives trades submitted for clearing are subject to minimum initial and variation margin requirements set by the relevant clearinghouse, as well as margin requirements mandated by the CFTC, SEC and/or federal prudential regulators. In addition, futures commission merchants (“FCMs”), who act as clearing members on behalf of customers for cleared OTC derivatives and futures contracts, also have discretion to increase a Fund’s margin requirements for these transactions beyond any regulatory and clearinghouse minimums subject to any restrictions on such discretion in the documentation between the FCM and the customer. These regulatory requirements may make it more difficult and costly for the Funds to enter into highly tailored or customized transactions, potentially rendering certain investment strategies impossible or not economically feasible. If a Fund decides to execute and clear cleared OTC derivatives and/or futures contracts through execution facilities, exchanges or clearinghouses, either indirectly through an executing broker, clearing member FCM or as a direct member, a Fund would be required to comply with the rules of the execution facility, exchange or clearinghouse and other applicable law.
With respect to cleared OTC derivatives and futures contracts and options on futures, a Fund will not face a clearinghouse directly but rather will do so through a FCM that is registered with the CFTC and/or SEC and that acts as a clearing member. A Fund may face the indirect risk of the failure of another clearing member customer to meet its obligations to its clearing member. Such scenario could arise due to a default by the clearing member on its obligations to the clearinghouse simultaneously with a customer’s failure to meet its obligations to the clearing member.
Clearing member FCMs are required to post initial margin to the clearinghouses through which they clear their customers’ cleared OTC derivatives and futures contracts, instead of using such initial margin in their businesses, as was widely permitted before Dodd-Frank. While an FCM may require its customer to post initial margin in excess of clearinghouse requirements, and certain clearinghouses may share a portion of their earnings on initial margin with their clearing members, some portion of the initial margin that is passed through to the clearinghouse
 
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does not generate earnings for the FCM. The inability of FCMs to earn the same levels of returns on initial margin for cleared OTC derivatives as they could earn with respect to non‑cleared OTC derivatives may cause FCMs to charge higher fees, or provide less favorable pricing on cleared OTC derivatives than swap dealers will provide for non‑cleared OTC derivatives. Furthermore, customers, including the Funds, are subject to additional fees payable to FCMs with respect to cleared OTC derivatives, which may raise the cost to Funds of clearing as compared to trading non‑cleared OTC derivatives bilaterally.
With respect to uncleared swaps, swap dealers are required to collect variation margin from a Fund and may be required by applicable regulations to collect initial margin from a Fund. Both initial and variation margin may be comprised of cash and/or securities, subject to applicable regulatory haircuts. Shares of investment companies (other than certain money market funds) may not be posted as collateral under applicable regulations.
The CFTC and the U.S. commodities exchanges impose limits on the maximum net long or net short speculative positions that any person may hold or control in any particular futures or options contracts traded on U.S. commodities exchanges. For example, the CFTC has historically imposed speculative position limits on a number of agricultural commodities (e.g., corn, oats, wheat, soybeans and cotton) and United States commodities exchanges currently impose speculative position limits on many other commodities. A Fund could be required to liquidate positions it holds in order to comply with position limits or may not be able to fully implement trading instructions generated by its trading models, in order to comply with position limits. Any such liquidation or limited implementation could result in substantial costs to a Fund.
Dodd-Frank significantly expanded the CFTC’s authority to impose position limits with respect to agricultural commodities and other physical commodity futures contracts, options on these futures contracts and economically equivalent swaps. In October 2020, the CFTC adopted a new set of speculative position limit rules with respect to agricultural commodities and other physical commodity futures contracts, options on these futures contracts (“core referenced futures contracts”) and economically equivalent swaps. An economically equivalent swap is a swap with identical material contractual specifications, terms and conditions to a core referenced futures contract, disregarding differences with respect to any of the following: (1) lot size specifications or notional amounts, (2) post-trade risk management arrangements and (3) delivery dates for physically-settled swaps as long as these delivery dates diverge by less than one calendar day from the referenced contract’s delivery date (or, for natural gas, two calendar days). A cash-settled swap could only be deemed to be economically equivalent to a cash-settled referenced contract, and a physically-settled swap could only be deemed to be economically equivalent to a physically-settled referenced contract. However, a cash-settled swap that initially did not qualify as economically equivalent due to the fact that there was no corresponding cash-settled core referenced futures contract could subsequently become an economically equivalent swap if a cash-settled futures contract market were to subsequently be developed. The CFTC’s new position limits rules include an exemption from limits for bona fide hedging transactions or positions. A bona fide hedging transaction or position may exceed the applicable federal position limits if the transaction or position: (1) represents a substitute for transactions or positions made or to be made at a later time in a physical marketing channel; (2) is economically appropriate to the reduction of price risks in the conduct and management of a commercial enterprise; and (3) arises from the potential change in value of (A) assets which a person owns, produces, manufactures, processes or merchandises, or anticipates owning, producing, manufacturing, processing or merchandising; (B) liabilities which a person owes or anticipates incurring; or (C) services that a person provides or purchases, or anticipates providing or purchasing. The CFTC’s new position rules set forth a list of enumerated bona fide hedges for which a market participant is not required to request prior approval from the CFTC in order to hold a bona fide hedge position above the federal position limit. However, a market participant holding an enumerated bona fide hedge position still would need to request an exemption from the relevant exchange for exchange‑set limits. For non‑enumerated bona fide hedge positions, a market participant may request CFTC approval which must be granted prior to exceeding the applicable federal position limit, except where there is a demonstrated sudden or unforeseen increase in bona fide hedging needs (in which case the application must be submitted within five business days after the market participant exceeds the applicable limit). The compliance dates for the CFTC’s new federal speculative position limits are January 1, 2022 for the core
 
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referenced futures contracts and January 1, 2023 for economically equivalent swaps. While the ultimate effect of the final position limit rules are not yet known, these limits will likely restrict the ability of many market participants to trade in the commodities markets to the same extent as they have in the past. These rules may, among other things, reduce liquidity, increase market volatility, limit the size and duration of positions available to market participants, and increase costs in these markets, which could adversely affect a Fund.
These new regulations and the resulting increased costs and regulatory oversight requirements may result in market participants being required or deciding to limit their trading activities, which could lead to decreased market liquidity and increased market volatility. In addition, transaction costs incurred by market participants are likely to be higher due to the increased costs of compliance with the new regulations. These consequences could adversely affect a Fund’s returns.
Additional Regulation of Derivatives. Regulatory bodies outside the U.S. have also passed, proposed, or may propose in the future, legislation similar to Dodd-Frank or other legislation that could increase the costs of participating in, or otherwise adversely impact the liquidity of, participating in the commodities markets. For example, the European Market Infrastructure Regulation (Regulation (EU) No 648/2012) (“EMIR”) introduced certain requirements in respect of OTC derivatives including:(i) the mandatory clearing of OTC derivative contracts declared subject to the clearing obligation; (ii) risk mitigation techniques in respect of uncleared OTC derivative contracts, including the mandatory margining of uncleared OTC derivative contracts; and (iii) reporting and recordkeeping requirements in respect of all derivatives contracts. By way of further example, the European Union Markets in Financial Instruments Directive (Directive 2014/65/EU) and Markets in Financial Instruments Regulation (Regulation (EU) No 600/2014) (together “MiFID II”), which have applied since January 3, 2018, govern the provision of investment services and activities in relation to, as well as the organized trading of, financial instruments such as shares, bonds, units in collective investment schemes and derivatives. In particular, MiFID II requires European Union Member States to apply position limits to the size of a net position a person can hold at any time in commodity derivatives traded on European Union trading venues and in “economically equivalent” OTC contracts. If the requirements of EMIR and MiFID II apply, the cost of derivatives transactions is expected to increase.
In addition, regulations adopted by global prudential regulators that are now in effect require certain prudentially regulated entities and certain of their affiliates and subsidiaries (including swap dealers) to include in their derivatives contracts and certain other financial contracts, terms that delay or restrict the rights of counterparties (such as the Funds) to terminate such contracts, foreclose upon collateral, exercise other default rights or restrict transfers of credit support in the event that the prudentially regulated entity and/or its affiliates are subject to certain types of resolution or insolvency proceedings. Similar regulations and laws have been adopted in non‑U.S. jurisdictions that may apply to a Fund’s counterparties located in those jurisdictions. It is possible that these new requirements, as well as potential additional related government regulation, could adversely affect a Fund’s ability to terminate existing derivatives contracts, exercise default rights or satisfy obligations owed to it with collateral received under such contracts.
The section entitled “Investment Risks and Considerations—Risk Factors in Derivatives” in Part II of each Fund’s SAI is deleted in its entirety and replaced with the following:
Risk Factors in Derivatives.
There are significant risks that apply generally to derivatives transactions, including:
Correlation Risk — the risk that changes in the value of a derivative will not match the changes in the value of the portfolio holdings that are being hedged or of the particular market or security to which the Fund seeks exposure. There are a number of factors which may prevent a derivative instrument from achieving the desired correlation (or inverse correlation) with an underlying asset, rate or index, such as the impact of fees, expenses and transaction costs, the timing of pricing, and disruptions or illiquidity in the markets for such derivative instrument.
 
-8-
Counterparty Risk — the risk that a derivatives transaction counterparty will be unable or unwilling to make payments or otherwise honor its obligations to a Fund and the related risks of having concentrated exposure to such a counterparty. In particular, derivatives traded in OTC markets often are not guaranteed by an exchange or clearing corporation and often do not require payment of margin, and to the extent that the Fund has unrealized gains in such instruments or has deposited collateral with its counterparties the Fund is at risk that its counterparties will become bankrupt or otherwise fail to honor their obligations. A Fund will typically attempt to minimize counterparty risk by engaging in OTC derivatives transactions only with creditworthy entities that have substantial capital or that have provided the Fund with a third-party guaranty or other credit support.
Credit Risk — the risk that the reference entity in a credit default swap or similar derivative will not be able to honor its financial obligations.
Currency Risk — the risk that changes in the exchange rate between two currencies will adversely affect the value (in U.S. dollar terms) of a derivative.
Illiquidity Risk — the risk that certain securities or instruments may be difficult or impossible to sell at the time or at the price desired by the counterparty in connection with payments of margin, collateral, or settlement payments. There can be no assurance that a Fund will be able to unwind or offset a derivative at its desired price, in a secondary market or otherwise. It may, therefore, not be possible for the Fund to unwind its position in a derivative without incurring substantial losses (if at all). Certain OTC derivatives, including swaps and OTC options, involve substantial illiquidity risk. Illiquidity may also make it more difficult for a Fund to ascertain a market value for such derivatives. A Fund will, therefore, acquire illiquid OTC derivatives (i) if the agreement pursuant to which the instrument is purchased contains a formula price at which the instrument may be terminated or sold, or (ii) for which the Manager anticipates the Fund can receive on each business day at least two independent bids or offers, unless a quotation from only one dealer is available, in which case that dealer’s quotation may be used. The illiquidity of the derivatives markets may be due to various factors, including congestion, disorderly markets, limitations on deliverable supplies, the participation of speculators, government regulation and intervention, and technical and operational or system failures. In addition, the liquidity of a secondary market in an exchange-traded derivative contract may be adversely affected by “daily price fluctuation limits” established by the exchanges which limit the amount of fluctuation in an exchange-traded contract price during a single trading day. Once the daily limit has been reached in the contract, no trades may be entered into at a price beyond the limit, thus preventing the liquidation of open positions. Prices have in the past moved beyond the daily limit on a number of consecutive trading days. If it is not possible to close an open derivative position entered into by the Fund, the Fund would continue to be required to make daily cash payments of variation margin in the event of adverse price movements. In such a situation, if the Fund has insufficient cash, it may have to sell portfolio securities to meet daily variation margin requirements at a time when it may be disadvantageous to do so.
Index Risk — if the derivative is linked to the performance of an index, it will be subject to the risks associated with changes in that index. If the index changes, the Fund could receive lower interest payments or experience a reduction in the value of the derivative to below the price that the Fund paid for such derivative.
Legal Risk — the risk of insufficient documentation, insufficient capacity or authority of counterparty, or legality or enforceability of a contract.
Leverage Risk — the risk that a Fund’s derivatives transactions can magnify the Fund’s gains and losses. Relatively small market movements may result in large changes in the value of a derivatives position and can result in losses that greatly exceed the amount originally invested.
Market Risk — the risk that changes in the value of one or more markets or changes with respect to the value of the underlying asset will adversely affect the value of a derivative. In the event of an adverse movement, a Fund may be required to pay substantial additional margin to maintain its position or the Fund’s returns may be adversely affected.
 
-9-
Operational Risk — the risk related to potential operational issues, including documentation issues, settlement issues, systems failures, inadequate controls and human error.
Valuation Risk — the risk that valuation sources for a derivative will not be readily available in the market. This is possible especially in times of market distress, since many market participants may be reluctant to purchase complex instruments or quote prices for them.
Volatility Risk — the risk that the value of derivatives will fluctuate significantly within a short time period.
The following paragraph is added at the end of the section entitled “Investment Risks and Considerations—Mortgage-Related Securities—Mortgage Dollar Rolls” in Part II of each Fund’s SAI:
Rule 18f‑4 under the Investment Company Act permits a Fund to enter into when-issued or forward-settling securities (e.g., dollar rolls and firm and standby commitments, including TBA commitments) and non‑standard settlement cycle securities notwithstanding the limitation on the issuance of senior securities in Section 18 of the Investment Company Act, provided that the transaction meets the Delayed-Settlement Securities Provision (as defined below under “—When-Issued Securities, Delayed Delivery Securities and Forward Commitments”). If a when-issued, forward-settling or non‑standard settlement cycle security does not satisfy the Delayed-Settlement Securities Provision, then it is treated as a Derivatives Transaction under Rule 18f‑4. See “—Derivatives — Regulation of Derivatives — Rule 18f‑4 under the Investment Company Act” above.
The following paragraph is added at the end of the section entitled “Investment Risks and Considerations—Description of Municipal Bonds—Tender Option Bonds” in Part II of each Fund’s SAI:
Rule 18f‑4 under the Investment Company Act permits a Fund to enter into TOB Trust transactions, reverse repurchase agreements and similar financing transactions (e.g., borrowed bonds) notwithstanding the limitation on the issuance of senior securities in Section 18 of the Investment Company Act, provided that the Fund either (i) complies with the 300% asset coverage ratio with respect to such transactions and any other borrowings in the aggregate, or (ii) treats such transactions as Derivatives Transactions under Rule 18f‑4. See “—Derivatives — Regulation of Derivatives — Rule 18f‑4 under the Investment Company Act” above.
The following paragraph is added after the third paragraph in the section entitled “Investment Risks and Considerations—Reverse Repurchase Agreements” in Part II of each Fund’s SAI:
Rule 18f‑4 under the Investment Company Act permits a Fund to enter into reverse repurchase agreements and similar financing transactions (e.g., recourse and non‑recourse tender option bonds, borrowed bonds) notwithstanding the limitation on the issuance of senior securities in Section 18 of the Investment Company Act, provided that the Fund either (i) complies with the 300% asset coverage ratio with respect to such transactions and any other borrowings in the aggregate, or (ii) treats such transactions as Derivatives Transactions under Rule 18f‑4. See “—Derivatives — Regulation of Derivatives — Rule 18f‑4 under the Investment Company Act” above.
The following paragraph is added at the end of the section entitled “Investment Risks and Considerations—Short Sales” in Part II of each Fund’s SAI:
A Fund must comply with Rule 18f‑4 under the Investment Company Act with respect to its short sale borrowings, which are considered Derivatives Transactions under the Rule. See “—Derivatives — Regulation of Derivatives — Rule 18f‑4 under the Investment Company Act” above.
 
-10-
The following paragraph is added after the sixth paragraph in the section entitled “Investment Risks and Considerations—When-Issued Securities, Delayed Delivery Securities and Forward Commitments” in Part II of each Fund’s SAI:
Rule 18f‑4 under the Investment Company Act permits a Fund to enter into when-issued or forward-settling securities (e.g., firm and standby commitments, including TBA commitments, and dollar rolls) and non‑standard settlement cycle securities notwithstanding the limitation on the issuance of senior securities in Section 18 of the Investment Company Act, provided that the Fund intends to physically settle the transaction and the transaction will settle within 35 days of its trade date (the “Delayed-Settlement Securities Provision”). If a when-issued, forward-settling or non‑standard settlement cycle security does not satisfy the Delayed-Settlement Securities Provision, then it is treated as a Derivatives Transaction under Rule 18f‑4. See “—Derivatives — Regulation of Derivatives — Rule 18f‑4 under the Investment Company Act” above.
 
-11-
Appendix A
 
BlackRock Advantage Global Fund, Inc.
BlackRock Advantage SMID Cap Fund, Inc.
BlackRock Allocation Target Shares
BATS: Series A Portfolio
BATS: Series C Portfolio
BATS: Series E Portfolio
BATS: Series M Portfolio
BATS: Series P Portfolio
BATS: Series S Portfolio
BATS: Series V Portfolio
BlackRock Bond Fund, Inc.
BlackRock Sustainable Total Return Fund
BlackRock Total Return Fund
BlackRock FundsSM
BlackRock Advantage Small Cap Core Fund
BlackRock China A Opportunities Fund
BlackRock Defensive Advantage Emerging Markets Fund
BlackRock Defensive Advantage International Fund
BlackRock Defensive Advantage U.S. Fund
BlackRock Global Equity Absolute Return Fund
BlackRock Global Impact Fund
BlackRock Global Long/Short Equity Fund
BlackRock Infrastructure Sustainable Opportunities Fund
BlackRock International Impact Fund
BlackRock Real Estate Securities Fund
BlackRock Short Obligations Fund
BlackRock SMID‑Cap Growth Equity Fund
BlackRock Sustainable Advantage Emerging Markets Equity Fund
BlackRock Sustainable Advantage International Equity Fund
BlackRock Sustainable Advantage Large Cap Core Fund
BlackRock Tactical Opportunities Fund
BlackRock Total Factor Fund
BlackRock U.S. Impact Fund
iShares Developed Real Estate Index Fund
iShares Municipal Bond Index Fund
iShares Russell Mid‑Cap Index Fund
iShares Russell Small/Mid‑Cap Index Fund
iShares Short-Term TIPS Bond Index Fund
iShares Total U.S. Stock Market Index Fund
iShares U.S. Intermediate Credit Bond Index Fund
iShares U.S. Intermediate Government Bond Index Fund
iShares U.S. Long Credit Bond Index Fund
iShares U.S. Long Government Bond Index Fund
iShares U.S. Securitized Bond Index Fund
BlackRock Funds II
BlackRock Dynamic High Income Portfolio
BlackRock Retirement Income 2030 Fund
BlackRock Retirement Income 2040 Fund
BlackRock Funds III
BlackRock LifePath® ESG Index 2025 Fund
BlackRock LifePath® ESG Index 2030 Fund
BlackRock LifePath® ESG Index 2035 Fund
BlackRock LifePath® ESG Index 2040 Fund
BlackRock LifePath® ESG Index 2045 Fund
BlackRock LifePath® ESG Index 2050 Fund
BlackRock LifePath® ESG Index 2055 Fund
BlackRock LifePath® ESG Index 2060 Fund
BlackRock LifePath® ESG Index 2065 Fund
BlackRock LifePath® ESG Index Retirement Fund
BlackRock Funds IV
BlackRock Global Long/Short Credit Fund
BlackRock Sustainable Advantage CoreAlpha Bond Fund
BlackRock Systematic Multi-Strategy Fund
BlackRock Funds V
BlackRock Core Bond Portfolio
BlackRock GNMA Portfolio
BlackRock Inflation Protected Bond Portfolio
BlackRock Low Duration Bond Portfolio
BlackRock Strategic Income Opportunities Portfolio
BlackRock Sustainable Emerging Markets Bond Fund
BlackRock Sustainable Emerging Markets Flexible Bond Fund
BlackRock Sustainable High Yield Bond Fund
BlackRock Sustainable Low Duration Bond Fund
BlackRock Funds VI
BlackRock Advantage CoreAlpha Bond Fund
 
 
-12-
BlackRock Funds VII, Inc.
BlackRock Sustainable Emerging Markets Equity Fund
BlackRock Sustainable International Equity Fund
BlackRock Sustainable U.S. Growth Equity Fund
BlackRock Sustainable U.S. Value Equity Fund
BlackRock Municipal Bond Fund, Inc.
BlackRock Impact Municipal Fund
BlackRock Strategic Global Bond Fund, Inc.
BlackRock Unconstrained Equity Fund
BlackRock Variable Series Funds, Inc.
BlackRock 60/40 Target Allocation ETF V.I. Fund
BlackRock International Index V.I. Fund
BlackRock Small Cap Index V.I. Fund
BlackRock Variable Series Funds II, Inc.
BlackRock Total Return V.I. Fund
Managed Account Series
BlackRock GA Disciplined Volatility Equity Fund
BlackRock GA Dynamic Equity Fund
Managed Account Series II
BlackRock U.S. Mortgage Portfolio
 
 
-13-
Appendix B
 
BlackRock FundsSM
BlackRock Advantage International Fund
BlackRock Advantage Large Cap Growth Fund
BlackRock Advantage Small Cap Growth Fund
BlackRock Energy Opportunities Fund
BlackRock Exchange Portfolio
BlackRock Health Sciences Opportunities Portfolio
BlackRock High Equity Income Fund
BlackRock International Dividend Fund
BlackRock Mid‑Cap Growth Equity Portfolio
BlackRock Technology Opportunities Fund
BlackRock Funds II
BlackRock 20/80 Target Allocation Fund
BlackRock 40/60 Target Allocation Fund
BlackRock 60/40 Target Allocation Fund
BlackRock 80/20 Target Allocation Fund
BlackRock Global Dividend Portfolio
BlackRock Managed Income Fund
BlackRock Multi-Asset Income Portfolio
BlackRock Funds V
BlackRock Floating Rate Income Portfolio
BlackRock High Yield Bond Portfolio
BlackRock Income Fund
BlackRock U.S. Government Bond Portfolio
 
 
Shareholders should retain this Supplement for future reference.
PR2SAI-GLBL-0722SUP
 
-14-
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Cik0000774013 Cik0000774013 [Member] BLACKROCK MULTI STATE MUNICIPAL SERIES TRUST Cik0000225635 Cik0000225635 [Member] BlackRock Municipal Bond Fund, Inc. Cik0000799113 Cik0000799113 [Member] BlackRock Municipal Series Trust Cik0000766555 Cik0000766555 [Member] BlackRock Natural Resources Trust Cik0000319108 Cik0000319108 [Member] BlackRock Series Fund, Inc. Cik0001738073 Cik0001738073 [Member] BlackRock Series Fund II, Inc. Cik0001062806 Cik0001062806 [Member] BlackRock Series, Inc. Cik0000835620 Cik0000835620 [Member] BlackRock Strategic Global Bond Fund, Inc. Cik0000110055 Cik0000110055 [Member] BlackRock Sustainable Balanced Fund, Inc. Cik0001324285 Cik0001324285 [Member] BlackRock Unconstrained Equity Fund Cik0000355916 Cik0000355916 [Member] BlackRock Variable Series Funds, Inc. Cik0001738072 Cik0001738072 [Member] BlackRock Variable Series Funds II, Inc. Cik0001323737 Cik0001323737 [Member] Managed Account Series Cik0001738079 Cik0001738079 [Member] Managed Account Series II Series [Axis] Series S000002724 [Member] BLACKROCK ADVANTAGE GLOBAL FUND, INC. BLACKROCK ADVANTAGE GLOBAL FUND, INC. Member S000002323 [Member] BlackRock Advantage SMID Cap Fund, Inc. BlackRock Advantage SMID Cap Fund, Inc. Member S000047014 [Member] BATS: Series A Portfolio BATS: Series A Portfolio Member S000001469 [Member] BATS: Series C Portfolio BATS: Series C Portfolio Member S000046220 [Member] BATS: Series E Portfolio BATS: Series E Portfolio Member S000001470 [Member] BATS: Series M Portfolio BATS: Series M Portfolio Member S000011985 [Member] BATS: Series P Portfolio BATS: Series P Portfolio Member S000001471 [Member] BATS: Series S Portfolio BATS: Series S Portfolio Member S000073727 [Member] BlackRock Sustainable Total Return Fund BlackRock Sustainable Total Return Fund Member S000004071 [Member] BlackRock Total Return Fund BlackRock Total Return Fund Member S000004030 [Member] BlackRock California Municipal Opportunities Fund BlackRock California Municipal Opportunities Fund Member S000002250 [Member] BlackRock Emerging Markets Fund, Inc. BlackRock Emerging Markets Fund, Inc. Member S000033603 [Member] BlackRock Advantage Emerging Markets Fund BlackRock Advantage Emerging Markets Fund Member S000008399 [Member] BlackRock Advantage International Fund BlackRock Advantage International Fund Member S000001871 [Member] BlackRock Advantage Large Cap Growth Fund BlackRock Advantage Large Cap Growth Fund Member S000039982 [Member] BlackRock Advantage Small Cap Core Fund BlackRock Advantage Small Cap Core Fund Member S000001507 [Member] BlackRock Advantage Small Cap Growth Fund BlackRock Advantage Small Cap Growth Fund Member S000063942 [Member] BlackRock China A Opportunities Fund BlackRock China A Opportunities Fund Member S000033601 [Member] BlackRock Commodity Strategies Fund BlackRock Commodity Strategies Fund Member S000070274 [Member] BlackRock Defensive Advantage Emerging Markets Fund BlackRock Defensive Advantage Emerging Markets Fund Member S000070273 [Member] BlackRock Defensive Advantage International Fund BlackRock Defensive Advantage International Fund Member S000070272 [Member] BlackRock Defensive Advantage U.S. Fund BlackRock Defensive Advantage U.S. Fund Member S000001869 [Member] BlackRock Energy Opportunities Fund BlackRock Energy Opportunities Fund Member S000001878 [Member] BlackRock Exchange Portfolio BlackRock Exchange Portfolio Member S000074773 [Member] BlackRock Global Equity Absolute Return Fund BlackRock Global Equity Absolute Return Fund Member S000068585 [Member] BlackRock Global Impact Fund BlackRock Global Impact Fund Member S000039460 [Member] BlackRock Global Long/Short Equity Fund BlackRock Global Long/Short Equity Fund Member S000001509 [Member] BlackRock High Equity Income Fund BlackRock High Equity Income Fund Member S000073490 [Member] BlackRock Infrastructure Sustainable Opportunities Fund BlackRock Infrastructure Sustainable Opportunities Fund Member S000001511 [Member] BlackRock International Dividend Fund BlackRock International Dividend Fund Member S000068584 [Member] BlackRock International Impact Fund BlackRock International Impact Fund Member S000001505 [Member] BlackRock Mid-Cap Growth Equity Portfolio BlackRock Mid-Cap Growth Equity Portfolio Member S000072352 [Member] BlackRock SMID-Cap Growth Equity Fund BlackRock SMID-Cap Growth Equity Fund Member S000069108 [Member] BlackRock Sustainable Advantage Emerging Markets Equity Fund BlackRock Sustainable Advantage Emerging Markets Equity Fund Member S000069107 [Member] BlackRock Sustainable Advantage International Equity Fund BlackRock Sustainable Advantage International Equity Fund Member S000051092 [Member] BlackRock Sustainable Advantage Large Cap Core Fund BlackRock Sustainable Advantage Large Cap Core Fund Member S000001870 [Member] BlackRock Tactical Opportunities Fund BlackRock Tactical Opportunities Fund Member S000001510 [Member] BlackRock Technology Opportunities Fund BlackRock Technology Opportunities Fund Member S000039515 [Member] BlackRock Total Factor Fund BlackRock Total Factor Fund Member S000018373 [Member] BlackRock 20/80 Target Allocation Fund BlackRock 20/80 Target Allocation Fund Member S000018360 [Member] BlackRock 40/60 Target Allocation Fund BlackRock 40/60 Target Allocation Fund Member S000018380 [Member] BlackRock 60/40 Target Allocation Fund BlackRock 60/40 Target Allocation Fund Member S000018351 [Member] BlackRock 80/20 Target Allocation Fund BlackRock 80/20 Target Allocation Fund Member S000047012 [Member] BlackRock Dynamic High Income Portfolio BlackRock Dynamic High Income Portfolio Member S000020791 [Member] BlackRock Global Dividend Portfolio BlackRock Global Dividend Portfolio Member S000018357 [Member] BlackRock Managed Income Fund BlackRock Managed Income Fund Member S000020792 [Member] BlackRock Multi-Asset Income Portfolio BlackRock Multi-Asset Income Portfolio Member S000069110 [Member] BlackRock Retirement Income 2030 Fund BlackRock Retirement Income 2030 Fund Member S000069111 [Member] BlackRock Retirement Income 2040 Fund BlackRock Retirement Income 2040 Fund Member S000029259 [Member] BlackRock LifePath Dynamic 2025 Fund BlackRock LifePath® Dynamic 2025 Fund BlackRock LifePath® Dynamic 2025 Fund Member S000004278 [Member] BlackRock LifePath Dynamic 2030 Fund BlackRock LifePath® Dynamic 2030 Fund BlackRock LifePath® Dynamic 2030 Fund Member S000029260 [Member] BlackRock LifePath Dynamic 2035 Fund BlackRock LifePath® Dynamic 2035 Fund BlackRock LifePath® Dynamic 2035 Fund Member S000004279 [Member] BlackRock LifePath Dynamic 2040 Fund BlackRock LifePath® Dynamic 2040 Fund BlackRock LifePath® Dynamic 2040 Fund Member S000029261 [Member] BlackRock LifePath Dynamic 2045 Fund BlackRock LifePath® Dynamic 2045 Fund BlackRock LifePath® Dynamic 2045 Fund Member S000022024 [Member] BlackRock LifePath Dynamic 2050 Fund BlackRock LifePath® Dynamic 2050 Fund BlackRock LifePath® Dynamic 2050 Fund Member S000029262 [Member] BlackRock LifePath Dynamic 2055 Fund BlackRock LifePath® Dynamic 2055 Fund BlackRock LifePath® Dynamic 2055 Fund Member S000057862 [Member] BlackRock LifePath Dynamic 2060 Fund BlackRock LifePath® Dynamic 2060 Fund BlackRock LifePath® Dynamic 2060 Fund Member S000066172 [Member] BlackRock LifePath Dynamic 2065 Fund BlackRock LifePath® Dynamic 2065 Fund BlackRock LifePath® Dynamic 2065 Fund Member S000004280 [Member] BlackRock LifePath Dynamic Retirement Fund BlackRock LifePath® Dynamic Retirement Fund BlackRock LifePath® Dynamic Retirement Fund Member S000062370 [Member] BlackRock Global Long/Short Credit Fund BlackRock Global Long/Short Credit Fund Member S000062371 [Member] BlackRock Sustainable Advantage CoreAlpha Bond Fund BlackRock Sustainable Advantage CoreAlpha Bond Fund Member S000062369 [Member] BlackRock Systematic Multi-Strategy Fund BlackRock Systematic Multi-Strategy Fund Member S000062362 [Member] BlackRock Core Bond Portfolio BlackRock Core Bond Portfolio Member S000062359 [Member] BlackRock Floating Rate Income Portfolio BlackRock Floating Rate Income Portfolio Member S000062363 [Member] BlackRock GNMA Portfolio BlackRock GNMA Portfolio Member S000062360 [Member] BlackRock High Yield Bond Portfolio BlackRock High Yield Bond Portfolio Member S000062356 [Member] BlackRock Income Fund BlackRock Income Fund Member S000062365 [Member] BlackRock Inflation Protected Bond Portfolio BlackRock Inflation Protected Bond Portfolio Member S000062361 [Member] BlackRock Low Duration Bond Portfolio BlackRock Low Duration Bond Portfolio Member S000062358 [Member] BlackRock Strategic Income Opportunities Portfolio BlackRock Strategic Income Opportunities Portfolio Member S000062366 [Member] BlackRock Sustainable Emerging Markets Bond Fund BlackRock Sustainable Emerging Markets Bond Fund Member S000062357 [Member] BlackRock Sustainable Emerging Markets Flexible Bond Fund BlackRock Sustainable Emerging Markets Flexible Bond Fund Member S000072568 [Member] BlackRock Sustainable High Yield Bond Fund BlackRock Sustainable High Yield Bond Fund Member S000073723 [Member] BlackRock Sustainable Low Duration Bond Fund BlackRock Sustainable Low Duration Bond Fund Member S000062364 [Member] BlackRock U.S. Government Bond Portfolio BlackRock U.S. Government Bond Portfolio Member S000062373 [Member] BlackRock Advantage CoreAlpha Bond Fund BlackRock Advantage CoreAlpha Bond Fund Member S000002248 [Member] BlackRock Sustainable Emerging Markets Equity Fund BlackRock Sustainable Emerging Markets Equity Fund Member S000073894 [Member] BlackRock Sustainable International Equity Fund BlackRock Sustainable International Equity Fund Member S000073892 [Member] BlackRock Sustainable U.S. Growth Equity Fund BlackRock Sustainable U.S. Growth Equity Fund Member S000073893 [Member] BlackRock Sustainable U.S. Value Equity Fund BlackRock Sustainable U.S. Value Equity Fund Member S000002245 [Member] BlackRock Global Allocation Fund, Inc. BlackRock Global Allocation Fund, Inc. Member S000001973 [Member] BlackRock Advantage Large Cap Core Fund BlackRock Advantage Large Cap Core Fund Member S000001975 [Member] BlackRock Advantage Large Cap Value Fund BlackRock Advantage Large Cap Value Fund Member S000018499 [Member] BlackRock Event Driven Equity Fund BlackRock Event Driven Equity Fund Member S000004034 [Member] BlackRock New York Municipal Opportunities Fund BlackRock New York Municipal Opportunities Fund Member S000011867 [Member] BlackRock High Yield Municipal Fund BlackRock High Yield Municipal Fund Member S000075512 [Member] BlackRock Impact Municipal Fund BlackRock Impact Municipal Fund Member S000002334 [Member] BlackRock National Municipal Fund BlackRock National Municipal Fund Member S000002335 [Member] BlackRock Short-Term Municipal Fund BlackRock Short-Term Municipal Fund Member S000004053 [Member] BlackRock Strategic Municipal Opportunities Fund BlackRock Strategic Municipal Opportunities Fund Member S000002176 [Member] BlackRock Natural Resources Trust BlackRock Natural Resources Trust Member S000003864 [Member] BlackRock Advantage Large Cap Core Portfolio BlackRock Advantage Large Cap Core Portfolio Member S000003866 [Member] BlackRock Global Allocation Portfolio BlackRock Global Allocation Portfolio Member S000003863 [Member] BlackRock Sustainable Balanced Portfolio BlackRock Sustainable Balanced Portfolio Member S000062374 [Member] BlackRock High Yield Portfolio BlackRock High Yield Portfolio Member S000062375 [Member] BlackRock U.S. Government Bond Portfolio BlackRock U.S. Government Bond Portfolio Member S000002291 [Member] BlackRock International Fund BlackRock International Fund Member S000002866 [Member] BlackRock Strategic Global Bond Fund, Inc. BlackRock Strategic Global Bond Fund, Inc. Member S000002175 [Member] BlackRock Sustainable Balanced Fund, Inc. BlackRock Sustainable Balanced Fund, Inc. Member S000002718 [Member] BlackRock Unconstrained Equity Fund BlackRock Unconstrained Equity Fund Member S000002876 [Member] BlackRock Advantage Large Cap Core V.I. Fund BlackRock Advantage Large Cap Core V.I. Fund Member S000002878 [Member] BlackRock Advantage Large Cap Value V.I. Fund BlackRock Advantage Large Cap Value V.I. Fund Member S000002879 [Member] BlackRock Advantage SMID Cap V.I. Fund BlackRock Advantage SMID Cap V.I. Fund Member S000002887 [Member] BlackRock Global Allocation V.I. Fund BlackRock Global Allocation V.I. Fund Member S000059909 [Member] BlackRock International Index V.I. Fund BlackRock International Index V.I. Fund Member S000002881 [Member] BlackRock International V.I. Fund BlackRock International V.I. Fund Member S000002877 [Member] BlackRock Large Cap Focus Growth V.I. Fund BlackRock Large Cap Focus Growth V.I. Fund Member S000002874 [Member] BlackRock Managed Volatility V.I. Fund BlackRock Managed Volatility V.I. Fund Member S000002875 [Member] BlackRock S&P 500 Index V.I. Fund BlackRock S&P 500 Index V.I. Fund BlackRock S&P 500 Index V.I. Fund Member S000059910 [Member] BlackRock Small Cap Index V.I. Fund BlackRock Small Cap Index V.I. Fund Member S000062376 [Member] BlackRock High Yield V.I. Fund BlackRock High Yield V.I. Fund Member S000062377 [Member] BlackRock Total Return V.I. Fund BlackRock Total Return V.I. Fund Member S000062378 [Member] BlackRock U.S. Government Bond V.I. Fund BlackRock U.S. Government Bond V.I. Fund Member S000057851 [Member] BlackRock GA Disciplined Volatility Equity Fund BlackRock GA Disciplined Volatility Equity Fund Member S000057852 [Member] BlackRock GA Dynamic Equity Fund BlackRock GA Dynamic Equity Fund Member S000062368 [Member] BlackRock U.S. Mortgage Portfolio BlackRock U.S. Mortgage Portfolio Member Before Taxes After Taxes on Distributions After Taxes on Distributions and Sales Share Classes C000202346 [Member] A A C000202349 [Member] A A C000202350 [Member] A A C000202351 [Member] A A C000202352 [Member] A A C000202353 [Member] A A C000202354 [Member] A A C000202356 [Member] A A C000202357 [Member] A A C000202358 [Member] A A C000202359 [Member] A A C000202360 [Member] A A C000202361 [Member] A A C000202363 [Member] A A C000202364 [Member] A A C000202365 [Member] A A C000202366 [Member] A A C000202367 [Member] A A C000202368 [Member] A A C000202369 [Member] A A C000202370 [Member] A A C000202371 [Member] A A C000202372 [Member] A A C000202373 [Member] A A 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A C000199730 [Member] A A C000199731 [Member] A A C000199732 [Member] A A C000199733 [Member] A A C000199734 [Member] A A C000199735 [Member] A A C000199736 [Member] A A C000199761 [Member] A A Class K C000202312 [Member] Class K Shares Class K Shares C000202313 [Member] Class A Class A C000202314 [Member] Class A Class A C000202315 [Member] Class A Class A C000202316 [Member] Class A Class A C000202317 [Member] Class A Class A C000202318 [Member] Class A Class A C000202319 [Member] Class A Class A C000202322 [Member] Class A Class A C000202323 [Member] Class A Class A C000202324 [Member] Class A Class A C000202325 [Member] Class A Class A C000202326 [Member] Class A Class A C000202327 [Member] Class A Class A C000202330 [Member] Class A Class A C000202331 [Member] Class A Class A C000202332 [Member] Class A Class A C000202333 [Member] Class A Class A C000202334 [Member] Class A Class A C000202335 [Member] Class A Class A C000202337 [Member] Class A Class A C000202338 [Member] Class A 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RIsk Not Insured [Text] Risk Money Market Fund Sponsor May Not Provide Support [Text] Risk Nondiversified Status [Text] Risk Caption Risk Column [Text] Risk [Text] Bar Chart and Performance Table [Heading] Performance Narrative [Text Block] Performance Information Illustrates Variability of Returns [Text] Performance One Year or Less [Text] Performance Additional Market Index [Text] Performance Availability Phone [Text] Performance Availability Website Address [Text] Performance Past Does Not Indicate Future [Text] Bar Chart [Heading] Bar Chart Narrative [Text Block] Bar Chart Does Not Reflect Sales Loads [Text] Annual Return Caption [Text] Caption Annual Return, Column [Text] Column Annual Return, Inception Date Inception Date Annual Return 1990 Annual Return 1991 Annual Return 1992 Annual Return 1993 Annual Return 1994 Annual Return 1995 Annual Return 1996 Annual Return 1997 Annual Return 1998 Annual Return 1999 Annual Return 2000 Annual Return 2001 Annual Return 2002 Annual Return 2003 Annual Return 2004 Annual Return 2005 Annual Return 2006 Annual Return 2007 Annual Return 2008 Annual Return 2009 Annual Return 2010 Annual Return 2011 Annual Return 2012 Annual Return 2013 Annual Return 2014 Annual Return 2015 Annual Return 2016 Annual Return 2017 Annual Return 2018 Annual Return 2019 Annual Return 2020 Annual Return 2021 Annual Return 2022 Annual Return 2023 Annual Return 2024 Annual Return 2025 Bar Chart Footnotes [Text Block] Bar Chart Closing [Text Block] Bar Chart, Reason Selected Class Different from Immediately Preceding Period [Text] Bar Chart, Returns for Class Not Offered in Prospectus [Text] Year to Date Return, Label Bar Chart, Year to Date Return, Date Bar Chart, Year to Date Return Highest Quarterly Return, Label Label Highest Quarterly Return, Date Highest Quarterly Return Label Lowest Quarterly Return, Label Lowest Quarterly Return, Date Lowest Quarterly Return Performance Table Heading Performance Table Does Reflect Sales Loads Performance Table 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Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Document Type dei_DocumentType 497
Document Period End Date dei_DocumentPeriodEndDate Jul. 15, 2022
Registrant Name dei_EntityRegistrantName BlackRock Funds IV
Entity Central Index Key dei_EntityCentralIndexKey 0001738074
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Jul. 18, 2022
Document Effective Date dei_DocumentEffectiveDate Jul. 18, 2022
Prospectus Date rr_ProspectusDate Jul. 18, 2022
Entity Inv Company Type dei_EntityInvCompanyType N-1A
XML 7 R2.htm IDEA: XBRL DOCUMENT v3.22.2
Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds IV
BlackRock Advantage SMID Cap Fund, Inc.
BlackRock Allocation Target Shares
BATS: Series A Portfolio
BATS: Series C Portfolio
BATS: Series E Portfolio
BATS: Series M Portfolio
BATS: Series P Portfolio
BATS: Series S Portfolio
BlackRock Bond Fund, Inc.
BlackRock Sustainable Total Return Fund
BlackRock Total Return Fund
BlackRock California Municipal Series Trust
BlackRock California Municipal Opportunities Fund
BlackRock Emerging Markets Fund, Inc.
BlackRock FundsSM
BlackRock Advantage Emerging Markets Fund
BlackRock Advantage International Fund
BlackRock Advantage Large Cap Growth Fund
BlackRock Advantage Small Cap Core Fund
BlackRock Advantage Small Cap Growth Fund
BlackRock China A Opportunities Fund
BlackRock Commodity Strategies Fund
BlackRock Defensive Advantage Emerging Markets Fund
BlackRock Defensive Advantage International Fund
BlackRock Defensive Advantage U.S. Fund
BlackRock Energy Opportunities Fund
BlackRock Exchange Portfolio
BlackRock Global Equity Absolute Return Fund
BlackRock Global Impact Fund
BlackRock Global Long/Short Equity Fund
BlackRock High Equity Income Fund
BlackRock Infrastructure Sustainable Opportunities Fund
BlackRock International Dividend Fund
BlackRock International Impact Fund
BlackRock Mid‑Cap Growth Equity Portfolio
BlackRock SMID‑Cap Growth Equity Fund
BlackRock Sustainable Advantage Emerging Markets Equity Fund
BlackRock Sustainable Advantage International Equity Fund
BlackRock Sustainable Advantage Large Cap Core Fund
BlackRock Tactical Opportunities Fund
BlackRock Technology Opportunities Fund
BlackRock Total Factor Fund
BlackRock Funds II
BlackRock 20/80 Target Allocation Fund
BlackRock 40/60 Target Allocation Fund
BlackRock 60/40 Target Allocation Fund
BlackRock 80/20 Target Allocation Fund
BlackRock Dynamic High Income Portfolio
BlackRock Global Dividend Portfolio
BlackRock Managed Income Fund
BlackRock Multi-Asset Income Portfolio
BlackRock Retirement Income 2030 Fund
BlackRock Retirement Income 2040 Fund
BlackRock Funds III
BlackRock LifePath® Dynamic 2025 Fund
BlackRock LifePath® Dynamic 2030 Fund
BlackRock LifePath® Dynamic 2035 Fund
BlackRock LifePath® Dynamic 2040 Fund
BlackRock LifePath® Dynamic 2045 Fund
BlackRock LifePath® Dynamic 2050 Fund
BlackRock LifePath® Dynamic 2055 Fund
BlackRock LifePath® Dynamic 2060 Fund
BlackRock LifePath® Dynamic 2065 Fund
BlackRock LifePath® Dynamic Retirement Fund
BlackRock Funds IV
BlackRock Global Long/Short Credit Fund
BlackRock Sustainable Advantage CoreAlpha Bond Fund
BlackRock Systematic Multi-Strategy Fund
BlackRock Funds V
BlackRock Core Bond Portfolio
BlackRock Floating Rate Income Portfolio
BlackRock GNMA Portfolio
BlackRock High Yield Bond Portfolio
BlackRock Income Fund
BlackRock Inflation Protected Bond Portfolio
BlackRock Low Duration Bond Portfolio
BlackRock Strategic Income Opportunities Portfolio
BlackRock Sustainable Emerging Markets Bond Fund
BlackRock Sustainable Emerging Markets Flexible Bond Fund
BlackRock Sustainable High Yield Bond Fund
BlackRock Sustainable Low Duration Bond Fund
BlackRock U.S. Government Bond Portfolio
BlackRock Funds VI
BlackRock Advantage CoreAlpha Bond Fund
BlackRock Funds VII, Inc.
BlackRock Sustainable Emerging Markets Equity Fund
BlackRock Sustainable International Equity Fund
BlackRock Sustainable U.S. Growth Equity Fund
BlackRock Sustainable U.S. Value Equity Fund
BlackRock Global Allocation Fund, Inc.
BlackRock Large Cap Series Funds, Inc.
BlackRock Advantage Large Cap Core Fund
BlackRock Advantage Large Cap Value Fund
BlackRock Event Driven Equity Fund
BlackRock Multi-State Municipal Series Trust
BlackRock New York Municipal Opportunities Fund
BlackRock Municipal Bond Fund, Inc.
BlackRock High Yield Municipal Fund
BlackRock Impact Municipal Fund
BlackRock National Municipal Fund
BlackRock Short-Term Municipal Fund
BlackRock Municipal Series Trust
BlackRock Strategic Municipal Opportunities Fund
BlackRock Natural Resources Trust
BlackRock Series Fund, Inc.
BlackRock Advantage Large Cap Core Portfolio
BlackRock Global Allocation Portfolio
BlackRock Sustainable Balanced Portfolio
BlackRock Series Fund II, Inc.
BlackRock High Yield Portfolio
BlackRock U.S. Government Bond Portfolio
BlackRock Series, Inc.
BlackRock International Fund
BlackRock Strategic Global Bond Fund, Inc.
BlackRock Sustainable Balanced Fund, Inc.
BlackRock Unconstrained Equity Fund
BlackRock Variable Series Funds, Inc.
BlackRock Advantage Large Cap Core V.I. Fund
BlackRock Advantage Large Cap Value V.I. Fund
BlackRock Advantage SMID Cap V.I. Fund
BlackRock Global Allocation V.I. Fund
BlackRock International Index V.I. Fund
BlackRock International V.I. Fund
BlackRock Large Cap Focus Growth V.I. Fund
BlackRock Managed Volatility V.I. Fund
BlackRock S&P 500 Index V.I. Fund
BlackRock Small Cap Index V.I. Fund
BlackRock Variable Series Funds II, Inc.
BlackRock High Yield V.I. Fund
BlackRock Total Return V.I. Fund
BlackRock U.S. Government Bond V.I. Fund
Managed Account Series
BlackRock GA Disciplined Volatility Equity Fund
BlackRock GA Dynamic Equity Fund
Managed Account Series II
BlackRock U.S. Mortgage Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Advantage Global Fund, Inc. | BLACKROCK ADVANTAGE GLOBAL FUND, INC.  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds IV
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Advantage SMID Cap Fund, Inc. | BlackRock Advantage SMID Cap Fund, Inc.  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Advantage SMID Cap Fund, Inc.
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Allocation Target Shares | BATS: Series A Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Allocation Target Shares
BATS: Series A Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Allocation Target Shares | BATS: Series C Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Allocation Target Shares
BATS: Series C Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Allocation Target Shares | BATS: Series E Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Allocation Target Shares
BATS: Series E Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Allocation Target Shares | BATS: Series M Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Allocation Target Shares
BATS: Series M Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Allocation Target Shares | BATS: Series P Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Allocation Target Shares
BATS: Series P Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Allocation Target Shares | BATS: Series S Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Allocation Target Shares
BATS: Series S Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Bond Fund, Inc. | BlackRock Sustainable Total Return Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Bond Fund, Inc.
BlackRock Sustainable Total Return Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Bond Fund, Inc. | BlackRock Total Return Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Bond Fund, Inc.
BlackRock Total Return Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock California Municipal Series Trust | BlackRock California Municipal Opportunities Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock California Municipal Series Trust
BlackRock California Municipal Opportunities Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Emerging Markets Fund, Inc. | BlackRock Emerging Markets Fund, Inc.  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Emerging Markets Fund, Inc.
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Advantage Emerging Markets Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Advantage Emerging Markets Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Advantage International Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Advantage International Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Advantage Large Cap Growth Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Advantage Large Cap Growth Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Advantage Small Cap Core Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Advantage Small Cap Core Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Advantage Small Cap Growth Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Advantage Small Cap Growth Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock China A Opportunities Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock China A Opportunities Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Commodity Strategies Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Commodity Strategies Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Defensive Advantage Emerging Markets Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Defensive Advantage Emerging Markets Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Defensive Advantage International Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Defensive Advantage International Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Defensive Advantage U.S. Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Defensive Advantage U.S. Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Energy Opportunities Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Energy Opportunities Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Exchange Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Exchange Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Global Equity Absolute Return Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Global Equity Absolute Return Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Global Impact Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Global Impact Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Global Long/Short Equity Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Global Long/Short Equity Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock High Equity Income Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock High Equity Income Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Infrastructure Sustainable Opportunities Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Infrastructure Sustainable Opportunities Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock International Dividend Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock International Dividend Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock International Impact Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock International Impact Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Mid-Cap Growth Equity Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Mid‑Cap Growth Equity Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock SMID-Cap Growth Equity Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock SMID‑Cap Growth Equity Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Sustainable Advantage Emerging Markets Equity Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Sustainable Advantage Emerging Markets Equity Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Sustainable Advantage International Equity Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Sustainable Advantage International Equity Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Sustainable Advantage Large Cap Core Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Sustainable Advantage Large Cap Core Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Tactical Opportunities Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Tactical Opportunities Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Technology Opportunities Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Technology Opportunities Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds | BlackRock Total Factor Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock FundsSM
BlackRock Total Factor Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds II | BlackRock 20/80 Target Allocation Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds II
BlackRock 20/80 Target Allocation Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds II | BlackRock 40/60 Target Allocation Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds II
BlackRock 40/60 Target Allocation Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds II | BlackRock 60/40 Target Allocation Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds II
BlackRock 60/40 Target Allocation Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds II | BlackRock 80/20 Target Allocation Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds II
BlackRock 80/20 Target Allocation Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds II | BlackRock Dynamic High Income Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds II
BlackRock Dynamic High Income Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds II | BlackRock Global Dividend Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds II
BlackRock Global Dividend Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds II | BlackRock Managed Income Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds II
BlackRock Managed Income Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds II | BlackRock Multi-Asset Income Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds II
BlackRock Multi-Asset Income Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds II | BlackRock Retirement Income 2030 Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds II
BlackRock Retirement Income 2030 Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds II | BlackRock Retirement Income 2040 Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds II
BlackRock Retirement Income 2040 Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds III | BlackRock LifePath Dynamic 2025 Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds III
BlackRock LifePath® Dynamic 2025 Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds III | BlackRock LifePath Dynamic 2030 Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds III
BlackRock LifePath® Dynamic 2030 Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds III | BlackRock LifePath Dynamic 2035 Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds III
BlackRock LifePath® Dynamic 2035 Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds III | BlackRock LifePath Dynamic 2040 Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds III
BlackRock LifePath® Dynamic 2040 Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds III | BlackRock LifePath Dynamic 2045 Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds III
BlackRock LifePath® Dynamic 2045 Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds III | BlackRock LifePath Dynamic 2050 Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds III
BlackRock LifePath® Dynamic 2050 Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds III | BlackRock LifePath Dynamic 2055 Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds III
BlackRock LifePath® Dynamic 2055 Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds III | BlackRock LifePath Dynamic 2060 Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds III
BlackRock LifePath® Dynamic 2060 Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds III | BlackRock LifePath Dynamic 2065 Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds III
BlackRock LifePath® Dynamic 2065 Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds III | BlackRock LifePath Dynamic Retirement Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds III
BlackRock LifePath® Dynamic Retirement Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds IV | BlackRock Global Long/Short Credit Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds IV
BlackRock Global Long/Short Credit Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds IV | BlackRock Sustainable Advantage CoreAlpha Bond Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds IV
BlackRock Sustainable Advantage CoreAlpha Bond Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds IV | BlackRock Systematic Multi-Strategy Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds IV
BlackRock Systematic Multi-Strategy Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds V | BlackRock Core Bond Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds V
BlackRock Core Bond Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds V | BlackRock Floating Rate Income Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds V
BlackRock Floating Rate Income Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds V | BlackRock GNMA Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds V
BlackRock GNMA Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds V | BlackRock High Yield Bond Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds V
BlackRock High Yield Bond Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds V | BlackRock Income Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds V
BlackRock Income Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds V | BlackRock Inflation Protected Bond Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds V
BlackRock Inflation Protected Bond Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds V | BlackRock Low Duration Bond Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds V
BlackRock Low Duration Bond Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds V | BlackRock Strategic Income Opportunities Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds V
BlackRock Strategic Income Opportunities Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds V | BlackRock Sustainable Emerging Markets Bond Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds V
BlackRock Sustainable Emerging Markets Bond Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds V | BlackRock Sustainable Emerging Markets Flexible Bond Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds V
BlackRock Sustainable Emerging Markets Flexible Bond Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds V | BlackRock Sustainable High Yield Bond Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds V
BlackRock Sustainable High Yield Bond Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds V | BlackRock Sustainable Low Duration Bond Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds V
BlackRock Sustainable Low Duration Bond Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds V | BlackRock U.S. Government Bond Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds V
BlackRock U.S. Government Bond Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds VI | BlackRock Advantage CoreAlpha Bond Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds VI
BlackRock Advantage CoreAlpha Bond Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds VII, Inc. | BlackRock Sustainable Emerging Markets Equity Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds VII, Inc.
BlackRock Sustainable Emerging Markets Equity Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds VII, Inc. | BlackRock Sustainable International Equity Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds VII, Inc.
BlackRock Sustainable International Equity Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds VII, Inc. | BlackRock Sustainable U.S. Growth Equity Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds VII, Inc.
BlackRock Sustainable U.S. Growth Equity Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Funds VII, Inc. | BlackRock Sustainable U.S. Value Equity Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Funds VII, Inc.
BlackRock Sustainable U.S. Value Equity Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Global Allocation Fund, Inc. | BlackRock Global Allocation Fund, Inc.  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Global Allocation Fund, Inc.
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Large Cap Series Funds, Inc. | BlackRock Advantage Large Cap Core Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Large Cap Series Funds, Inc.
BlackRock Advantage Large Cap Core Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Large Cap Series Funds, Inc. | BlackRock Advantage Large Cap Value Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Large Cap Series Funds, Inc.
BlackRock Advantage Large Cap Value Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Large Cap Series Funds, Inc. | BlackRock Event Driven Equity Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Large Cap Series Funds, Inc.
BlackRock Event Driven Equity Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BLACKROCK MULTI STATE MUNICIPAL SERIES TRUST | BlackRock New York Municipal Opportunities Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Multi-State Municipal Series Trust
BlackRock New York Municipal Opportunities Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Municipal Bond Fund, Inc. | BlackRock High Yield Municipal Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Municipal Bond Fund, Inc.
BlackRock High Yield Municipal Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Municipal Bond Fund, Inc. | BlackRock Impact Municipal Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Municipal Bond Fund, Inc.
BlackRock Impact Municipal Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Municipal Bond Fund, Inc. | BlackRock National Municipal Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Municipal Bond Fund, Inc.
BlackRock National Municipal Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Municipal Bond Fund, Inc. | BlackRock Short-Term Municipal Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Municipal Bond Fund, Inc.
BlackRock Short-Term Municipal Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Municipal Series Trust | BlackRock Strategic Municipal Opportunities Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Municipal Series Trust
BlackRock Strategic Municipal Opportunities Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Natural Resources Trust | BlackRock Natural Resources Trust  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Natural Resources Trust
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Series Fund, Inc. | BlackRock Advantage Large Cap Core Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Series Fund, Inc.
BlackRock Advantage Large Cap Core Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Series Fund, Inc. | BlackRock Global Allocation Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Series Fund, Inc.
BlackRock Global Allocation Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Series Fund, Inc. | BlackRock Sustainable Balanced Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Series Fund, Inc.
BlackRock Sustainable Balanced Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Series Fund II, Inc. | BlackRock High Yield Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Series Fund II, Inc.
BlackRock High Yield Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Series Fund II, Inc. | BlackRock U.S. Government Bond Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Series Fund II, Inc.
BlackRock U.S. Government Bond Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Series, Inc. | BlackRock International Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Series, Inc.
BlackRock International Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Strategic Global Bond Fund, Inc. | BlackRock Strategic Global Bond Fund, Inc.  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Strategic Global Bond Fund, Inc.
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Sustainable Balanced Fund, Inc. | BlackRock Sustainable Balanced Fund, Inc.  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Sustainable Balanced Fund, Inc.
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Unconstrained Equity Fund | BlackRock Unconstrained Equity Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Unconstrained Equity Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Variable Series Funds, Inc. | BlackRock Advantage Large Cap Core V.I. Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Variable Series Funds, Inc.
BlackRock Advantage Large Cap Core V.I. Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Variable Series Funds, Inc. | BlackRock Advantage Large Cap Value V.I. Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Variable Series Funds, Inc.
BlackRock Advantage Large Cap Value V.I. Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Variable Series Funds, Inc. | BlackRock Advantage SMID Cap V.I. Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Variable Series Funds, Inc.
BlackRock Advantage SMID Cap V.I. Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Variable Series Funds, Inc. | BlackRock Global Allocation V.I. Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Variable Series Funds, Inc.
BlackRock Global Allocation V.I. Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Variable Series Funds, Inc. | BlackRock International Index V.I. Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Variable Series Funds, Inc.
BlackRock International Index V.I. Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Variable Series Funds, Inc. | BlackRock International V.I. Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Variable Series Funds, Inc.
BlackRock International V.I. Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Variable Series Funds, Inc. | BlackRock Large Cap Focus Growth V.I. Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Variable Series Funds, Inc.
BlackRock Large Cap Focus Growth V.I. Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Variable Series Funds, Inc. | BlackRock Managed Volatility V.I. Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Variable Series Funds, Inc.
BlackRock Managed Volatility V.I. Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Variable Series Funds, Inc. | BlackRock S&P 500 Index V.I. Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Variable Series Funds, Inc.
BlackRock S&P 500 Index V.I. Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Variable Series Funds, Inc. | BlackRock Small Cap Index V.I. Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Variable Series Funds, Inc.
BlackRock Small Cap Index V.I. Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Variable Series Funds II, Inc. | BlackRock High Yield V.I. Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Variable Series Funds II, Inc.
BlackRock High Yield V.I. Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Variable Series Funds II, Inc. | BlackRock Total Return V.I. Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Variable Series Funds II, Inc.
BlackRock Total Return V.I. Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
BlackRock Variable Series Funds II, Inc. | BlackRock U.S. Government Bond V.I. Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
BlackRock Variable Series Funds II, Inc.
BlackRock U.S. Government Bond V.I. Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
Managed Account Series | BlackRock GA Disciplined Volatility Equity Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
Managed Account Series
BlackRock GA Disciplined Volatility Equity Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
Managed Account Series | BlackRock GA Dynamic Equity Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
Managed Account Series
BlackRock GA Dynamic Equity Fund
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
Managed Account Series II | BlackRock U.S. Mortgage Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
Managed Account Series II
BlackRock U.S. Mortgage Portfolio
(each, a “Fund” and collectively, the “Funds”)
Supplement dated July 18, 2022 (the “Supplement”) to the
Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date
The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable:
The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled “Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following:
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
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Target Allocation Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock 60/40 Target Allocation Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock 80/20 Target Allocation Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Dynamic High Income Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Global Dividend Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Managed Income Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Multi-Asset Income Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Retirement Income 2030 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Retirement Income 2040 Fund </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds III </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2025 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2030 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2035 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2040 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2045 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2050 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2055 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2060 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2065 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic Retirement Fund </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds IV </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Global Long/Short Credit Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable Advantage CoreAlpha Bond Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Systematic Multi-Strategy Fund </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds V </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Core Bond Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Floating Rate Income Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock GNMA Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock High Yield Bond Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Income Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Inflation Protected Bond Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Low Duration Bond Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Strategic Income Opportunities Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable Emerging Markets Bond Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable Emerging Markets Flexible Bond Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable High Yield Bond Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable Low Duration Bond Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock U.S. Government Bond Portfolio </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds VI </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Advantage CoreAlpha Bond Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds VII, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable Emerging Markets Equity Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable International Equity Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable U.S. Growth Equity Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable U.S. Value Equity Fund </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Global Allocation Fund, Inc. </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Large Cap Series Funds, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Advantage Large Cap Core Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Advantage Large Cap Value Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Event Driven Equity Fund </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Multi-State Municipal Series Trust </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock New York Municipal Opportunities Fund </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Municipal Bond Fund, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock High Yield Municipal Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Impact Municipal Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock National Municipal Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Short-Term Municipal Fund </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Municipal Series Trust </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Strategic Municipal Opportunities Fund </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Natural Resources Trust </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Series Fund, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Advantage Large Cap Core Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Global Allocation Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable Balanced Portfolio </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Series Fund II, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock High Yield Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock U.S. Government Bond Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Series, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock International Fund </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Strategic Global Bond Fund, Inc. </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Sustainable Balanced Fund, Inc. </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Unconstrained Equity Fund </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Variable Series Funds, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock Advantage Large Cap Core V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock Advantage Large Cap Value V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock Advantage SMID Cap V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock Global Allocation V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock International Index V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock International V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock Large Cap Focus Growth V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock Managed Volatility V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock S&amp;P 500 Index V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock Small Cap Index V.I. Fund </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Variable Series Funds II, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock High Yield V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock Total Return V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock U.S. Government Bond V.I. Fund </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">Managed Account Series </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock GA Disciplined Volatility Equity Fund </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock GA Dynamic Equity Fund </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">Managed Account Series II </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock U.S. Mortgage Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds IV</div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> BlackRock Funds IV <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Advantage SMID Cap Fund, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Allocation Target Shares </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BATS: Series A Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Allocation Target Shares </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BATS: Series E Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Allocation Target Shares </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BATS: Series M Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Allocation Target Shares </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BATS: Series P Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Allocation Target Shares </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BATS: Series S Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Allocation Target Shares </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BATS: Series C Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Bond Fund, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable Total Return Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Bond Fund, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Total Return Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock California Municipal Series Trust </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock California Municipal Opportunities Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Emerging Markets Fund, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Advantage Emerging Markets Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Advantage International Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Advantage Large Cap Growth Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Advantage Small Cap Core Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Advantage Small Cap Growth Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock China A Opportunities Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Commodity Strategies Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Defensive Advantage Emerging Markets Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Defensive Advantage International Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Defensive Advantage U.S. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Energy Opportunities Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Exchange Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Global Equity Absolute Return Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Global Impact Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Global Long/Short Equity Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock High Equity Income Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Infrastructure Sustainable Opportunities Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock International Dividend Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock International Impact Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Mid‑Cap Growth Equity Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock SMID‑Cap Growth Equity Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable Advantage Emerging Markets Equity Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable Advantage International Equity Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable Advantage Large Cap Core Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Tactical Opportunities Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Technology Opportunities Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds<sup style="font-size:75%;vertical-align:top">SM</sup> </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Total Factor Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds II </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock 20/80 Target Allocation Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds II </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock 40/60 Target Allocation Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds II </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock 60/40 Target Allocation Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds II </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock 80/20 Target Allocation Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds II </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Dynamic High Income Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds II </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Global Dividend Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds II </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Managed Income Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds II </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Multi-Asset Income Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds II </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Retirement Income 2030 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds II </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Retirement Income 2040 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds III </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2025 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds III </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2030 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds III </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2035 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds III </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2040 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds III </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2045 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds III </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2050 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds III </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2055 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds III </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2060 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds III </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic 2065 Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds III </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock LifePath<sup style="font-size:75%;vertical-align:top">®</sup> Dynamic Retirement Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds IV </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Global Long/Short Credit Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds IV </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Systematic Multi-Strategy Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds IV </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable Advantage CoreAlpha Bond Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds V </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Core Bond Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds V </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Floating Rate Income Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds V </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock GNMA Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds V </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock High Yield Bond Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds V </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Income Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds V </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Inflation Protected Bond Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds V </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Low Duration Bond Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds V </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Strategic Income Opportunities Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds V </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable Emerging Markets Bond Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds V </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable Emerging Markets Flexible Bond Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds V </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable High Yield Bond Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds V </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable Low Duration Bond Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds V </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock U.S. Government Bond Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds VI </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Advantage CoreAlpha Bond Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds VII, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable Emerging Markets Equity Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds VII, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable International Equity Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds VII, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable U.S. Growth Equity Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Funds VII, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable U.S. Value Equity Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Global Allocation Fund, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Large Cap Series Funds, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Advantage Large Cap Core Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Large Cap Series Funds, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Advantage Large Cap Value Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Large Cap Series Funds, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Event Driven Equity Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Multi-State Municipal Series Trust </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock New York Municipal Opportunities Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Municipal Bond Fund, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock High Yield Municipal Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Municipal Bond Fund, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Impact Municipal Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Municipal Bond Fund, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock National Municipal Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Municipal Bond Fund, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Short-Term Municipal Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Municipal Series Trust </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Strategic Municipal Opportunities Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Natural Resources Trust </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Series Fund, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Advantage Large Cap Core Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Series Fund, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Global Allocation Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Series Fund, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock Sustainable Balanced Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Series Fund II, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock High Yield Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Series Fund II, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:4%;font-size:10pt;font-family:times new roman;">BlackRock U.S. Government Bond Portfolio </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Series, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock International Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Strategic Global Bond Fund, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Sustainable Balanced Fund, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Unconstrained Equity Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Variable Series Funds, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock Advantage Large Cap Core V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Variable Series Funds, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock Advantage Large Cap Value V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Variable Series Funds, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock Advantage SMID Cap V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Variable Series Funds, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock Global Allocation V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Variable Series Funds, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock International V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Variable Series Funds, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock Large Cap Focus Growth V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Variable Series Funds, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock Managed Volatility V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Variable Series Funds, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock S&amp;P 500 Index V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Variable Series Funds, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock Small Cap Index V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Variable Series Funds, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock International Index V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Variable Series Funds II, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock High Yield V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Variable Series Funds II, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock Total Return V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">BlackRock Variable Series Funds II, Inc. </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock U.S. Government Bond V.I. Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">Managed Account Series </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock GA Disciplined Volatility Equity Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. </div> <div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">Managed Account Series </div><div style="margin-top:0pt;margin-bottom:0pt;margin-left:20pt;font-size:10pt;font-family:times new roman;">BlackRock GA Dynamic Equity Fund </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">(each, a “Fund” and collectively, the “Funds”) </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Supplement dated July 18, 2022 (the “Supplement”) to the </div><div style="margin-top:0pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;text-align:center;">Summary Prospectus(es), Prospectus(es) and Statement of Additional Information (“SAI”) of each Fund, as supplemented to date </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;font-weight:bold;">The following changes are made to each Fund’s Summary Prospectus(es) and Prospectus(es), as applicable: </div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold">The risk factor entitled “Leverage Risk” in the section of the Summary Prospectus(es) entitled </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund</span><span style="font-weight:bold"><span style="font-style:italic">”</span></span><span style="font-weight:bold"> or </span><span style="font-weight:bold"><span style="font-style:italic">“</span></span><span style="font-weight:bold">Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, and the section of the Prospectus(es) entitled “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund” or “Fund Overview—Key Facts About [the Fund]—Principal Risks of Investing in the Fund, the Underlying Funds and/or the ETFs,” as applicable, for each applicable Fund is deleted in its entirety and replaced with the following: </span></div><div style="margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:times new roman;"><span style="font-weight:bold"><span style="font-style:italic">Leverage Risk </span></span>— Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. 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Because the share price of the Fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. The Fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the Fund's liquidity falls below required minimums because of market conditions or other factors. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time. (B) If the Fund is a Money Market Fund that is a government Money Market Fund, as defined in \u00a7 270.2a\u20137(a)(16), or a retail Money Market Fund, as defined in \u00a7 270.2a\u20137(a)(25), and that is subject to the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii) of this chapter (or is not subject to the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii) of this chapter pursuant to \u00a7 270.2a\u20137(c)(2)(iii) of this chapter, but has chosen to rely on the ability to impose liquidity fees and suspend redemptions consistent with the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii)), include the following statement: You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The Fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the Fund's liquidity falls below required minimums because of market conditions or other factors. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time. (C) If the Fund is a Money Market Fund that is a government Money Market Fund, as defined in \u00a7 270.2a\u20137(a)(16), that is not subject to the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii) of this chapter pursuant to \u00a7 270.2a\u20137(c)(2)(iii) of this chapter, and that has not chosen to rely on the ability to impose liquidity fees and suspend redemptions consistent with the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii), include the following statement: You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time. Instruction. If an affiliated person, promoter, or principal underwriter of the Fund, or an affiliated person of such a person, has contractually committed to provide financial support to the Fund, and the term of the agreement will extend for at least one year following the effective date of the Fund's registration statement, the statement specified in Item 4(b)(1)(ii)(A), Item 4(b)(1)(ii)(B), or Item 4(b)(1)(ii)(C) may omit the last sentence (\"The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time.\"). 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