<ACCESSION-NUMBER>0000922864-18-000006 <TYPE>10-K <PUBLIC-DOCUMENT-COUNT>108 <PERIOD>20171231 <FILING-DATE>20180301 <DATE-OF-FILING-DATE-CHANGE>20180228 <FILER> <COMPANY-DATA> <CONFORMED-NAME>APARTMENT INVESTMENT & MANAGEMENT CO <CIK>0000922864 <ASSIGNED-SIC>6798 <IRS-NUMBER>841259577 <STATE-OF-INCORPORATION>MD <FISCAL-YEAR-END>1231 </COMPANY-DATA> <FILING-VALUES> <FORM-TYPE>10-K <ACT>34 <FILE-NUMBER>001-13232 <FILM-NUMBER>18654457 </FILING-VALUES> <BUSINESS-ADDRESS> <STREET1>4582 SOUTH ULSTER STREET <STREET2>SUITE 1100 <CITY>DENVER <STATE>CO <ZIP>80237 <PHONE>3037578101 </BUSINESS-ADDRESS> <MAIL-ADDRESS> <STREET1>4582 SOUTH ULSTER STREET <STREET2>SUITE 1100 <CITY>DENVER <STATE>CO <ZIP>80237 </MAIL-ADDRESS> </FILER> <FILER> <COMPANY-DATA> <CONFORMED-NAME>AIMCO PROPERTIES L.P. <CIK>0000926660 <ASSIGNED-SIC>6513 <IRS-NUMBER>841275621 <STATE-OF-INCORPORATION>DE <FISCAL-YEAR-END>1231 </COMPANY-DATA> <FILING-VALUES> <FORM-TYPE>10-K <ACT>34 <FILE-NUMBER>000-24497 <FILM-NUMBER>18654456 </FILING-VALUES> <BUSINESS-ADDRESS> <STREET1>4582 S ULSTER ST PARKWAY <STREET2>SUITE 1100 <CITY>DENVER <STATE>CO <ZIP>80237 <PHONE>3037578101 </BUSINESS-ADDRESS> <MAIL-ADDRESS> <STREET1>4582 S ULSTER ST PARKWAY <STREET2>SUITE 1100 <CITY>DENVER <STATE>CO <ZIP>80237 </MAIL-ADDRESS> <FORMER-COMPANY> <FORMER-CONFORMED-NAME>AIMCO PROPERTIES LP <DATE-CHANGED>19980519 </FORMER-COMPANY> </FILER>