<SEC-DOCUMENT>0001193125-20-262124-index.html : 20201002 <SEC-HEADER>0001193125-20-262124.hdr.sgml : 20201002 <ACCEPTANCE-DATETIME>20201002111705 ACCESSION NUMBER: 0001193125-20-262124 CONFORMED SUBMISSION TYPE: N-CSR PUBLIC DOCUMENT COUNT: 19 CONFORMED PERIOD OF REPORT: 20200731 FILED AS OF DATE: 20201002 DATE AS OF CHANGE: 20201002 EFFECTIVENESS DATE: 20201002 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BLACKROCK MUNIYIELD INVESTMENT QUALITY FUND CENTRAL INDEX KEY: 0000891188 IRS NUMBER: 223196058 FISCAL YEAR END: 0630 FILING VALUES: FORM TYPE: N-CSR SEC ACT: 1940 Act SEC FILE NUMBER: 811-07156 FILM NUMBER: 201218622 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 MUNIYIELD INSURED INVESTMENT FUND DATE OF NAME CHANGE: 20080926 FORMER COMPANY: FORMER CONFORMED NAME: BLACKROCK MUNIYIELD FLORIDA INSURED FUND DATE OF NAME CHANGE: 20070611 FORMER COMPANY: FORMER CONFORMED NAME: MUNIYIELD FLORIDA INSURED FUND /NJ/ DATE OF NAME CHANGE: 19921217 </SEC-HEADER> <DOCUMENT> <TYPE>N-CSR <SEQUENCE>1 <FILENAME>d847740dncsr.htm <DESCRIPTION>BLACKROCK MUNIYIELD INVESTMENT QUALITY FUND <TEXT> Document 1 - file: d847740dncsr.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.CERT <SEQUENCE>2 <FILENAME>d847740dex99cert.htm <DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 302 <TEXT> Document 2 - file: d847740dex99cert.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.906CERT <SEQUENCE>3 <FILENAME>d847740dex99906cert.htm <DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 906 <TEXT> Document 3 - file: d847740dex99906cert.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.PROXYPOL <SEQUENCE>4 <FILENAME>d847740dex99proxypol.htm <DESCRIPTION>PROXY VOTING POLICY <TEXT> Document 4 - file: d847740dex99proxypol.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.GLOBAL.CORP.GO <SEQUENCE>5 <FILENAME>d847740dex99globalcorpgo.htm <DESCRIPTION>GLOBAL CORPORATE GOVERNANCE & ENGAGEMENT PRINCIPLES <TEXT> Document 5 - file: d847740dex99globalcorpgo.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.US.CORP.GOV <SEQUENCE>6 <FILENAME>d847740dex99uscorpgov.htm <DESCRIPTION>CORPORATE GOVERNANCE AND PROXY VOTING GUIDELINES FOR U.S. SECURITIES <TEXT> Document 6 - file: d847740dex99uscorpgov.htm
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</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>15 <FILENAME>g847603photo_01mips.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 15 - file: g847603photo_01mips.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>16 <FILENAME>g847603sig_01mips.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 16 - file: g847603sig_01mips.jpg
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</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>18 <FILENAME>g847616g33e79.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 18 - file: g847616g33e79.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>19 <FILENAME>g847616st0016.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 19 - file: g847616st0016.jpg
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