<ACCESSION-NUMBER>0000915912-19-000002 <TYPE>8-K <PUBLIC-DOCUMENT-COUNT>5 <PERIOD>20190204 <ITEMS>2.02 <ITEMS>9.01 <FILING-DATE>20190205 <DATE-OF-FILING-DATE-CHANGE>20190205 <FILER> <COMPANY-DATA> <CONFORMED-NAME>AVALONBAY COMMUNITIES INC <CIK>0000915912 <ASSIGNED-SIC>6798 <IRS-NUMBER>770404318 <STATE-OF-INCORPORATION>MD <FISCAL-YEAR-END>1231 </COMPANY-DATA> <FILING-VALUES> <FORM-TYPE>8-K <ACT>34 <FILE-NUMBER>001-12672 <FILM-NUMBER>19566235 </FILING-VALUES> <BUSINESS-ADDRESS> <STREET1>671 N. GLEBE ROAD <STREET2>SUITE 800 <CITY>ARLINGTON <STATE>VA <ZIP>22203 <PHONE>7033296300 </BUSINESS-ADDRESS> <MAIL-ADDRESS> <STREET1>671 N. GLEBE ROAD <STREET2>STE 800 <CITY>ARLINGTON <STATE>VA <ZIP>22203 </MAIL-ADDRESS> <FORMER-COMPANY> <FORMER-CONFORMED-NAME>AVALON BAY COMMUNITIES INC <DATE-CHANGED>19980618 </FORMER-COMPANY> <FORMER-COMPANY> <FORMER-CONFORMED-NAME>BAY APARTMENT COMMUNITIES INC <DATE-CHANGED>19931208 </FORMER-COMPANY> </FILER>