<ACCESSION-NUMBER>0001193125-18-305236 <TYPE>425 <PUBLIC-DOCUMENT-COUNT>25 <FILING-DATE>20181023 <DATE-OF-FILING-DATE-CHANGE>20181023 <SUBJECT-COMPANY> <COMPANY-DATA> <CONFORMED-NAME>MB FINANCIAL INC /MD <CIK>0001139812 <ASSIGNED-SIC>6021 <IRS-NUMBER>364460265 <FISCAL-YEAR-END>1231 </COMPANY-DATA> <FILING-VALUES> <FORM-TYPE>425 <ACT>34 <FILE-NUMBER>001-36599 <FILM-NUMBER>181134085 </FILING-VALUES> <BUSINESS-ADDRESS> <STREET1>800 WEST MADISON STREET <CITY>CHICAGO <STATE>IL <ZIP>60607 <PHONE>888-422-6562 </BUSINESS-ADDRESS> <MAIL-ADDRESS> <STREET1>6111 NORTH RIVER ROAD <CITY>ROSEMONT <STATE>IL <ZIP>60018 </MAIL-ADDRESS> <FORMER-COMPANY> <FORMER-CONFORMED-NAME>MB FINANCIAL INC /MD <DATE-CHANGED>20011115 </FORMER-COMPANY> <FORMER-COMPANY> <FORMER-CONFORMED-NAME>MB FINANCIAL INC/IL <DATE-CHANGED>20011113 </FORMER-COMPANY> <FORMER-COMPANY> <FORMER-CONFORMED-NAME>MB MIDCITY INC <DATE-CHANGED>20010502 </FORMER-COMPANY> </SUBJECT-COMPANY> <FILED-BY> <COMPANY-DATA> <CONFORMED-NAME>FIFTH THIRD BANCORP <CIK>0000035527 <ASSIGNED-SIC>6022 <IRS-NUMBER>310854434 <STATE-OF-INCORPORATION>OH <FISCAL-YEAR-END>1231 </COMPANY-DATA> <FILING-VALUES> <FORM-TYPE>425 </FILING-VALUES> <BUSINESS-ADDRESS> <STREET1>38 FOUNTAIN SQ PLZ <STREET2>FIFTH THIRD CENTER <CITY>CINCINNATI <STATE>OH <ZIP>45263 <PHONE>5135795300 </BUSINESS-ADDRESS> <MAIL-ADDRESS> <STREET1>38 FOUNTAIN SQ PLZ <STREET2>FIFTH THIRD CENTER <CITY>CINCINNATI <STATE>OH <ZIP>45263 </MAIL-ADDRESS> </FILED-BY>