<ACCESSION-NUMBER>0000920112-18-000176 <TYPE>8-K <PUBLIC-DOCUMENT-COUNT>4 <PERIOD>20180516 <ITEMS>5.02 <FILING-DATE>20180521 <DATE-OF-FILING-DATE-CHANGE>20180521 <FILER> <COMPANY-DATA> <CONFORMED-NAME>HEARTLAND FINANCIAL USA INC <CIK>0000920112 <ASSIGNED-SIC>6022 <IRS-NUMBER>421405748 <STATE-OF-INCORPORATION>DE <FISCAL-YEAR-END>1231 </COMPANY-DATA> <FILING-VALUES> <FORM-TYPE>8-K <ACT>34 <FILE-NUMBER>001-15393 <FILM-NUMBER>18848912 </FILING-VALUES> <BUSINESS-ADDRESS> <STREET1>1398 CENTRAL AVE <CITY>DUBUQUE <STATE>IA <ZIP>52001 <PHONE>5635892000 </BUSINESS-ADDRESS> <MAIL-ADDRESS> <STREET1>1398 CENTRAL AVE <CITY>DUBUQUE <STATE>IA <ZIP>52001 </MAIL-ADDRESS> </FILER>