<ACCESSION-NUMBER>0001564590-18-008919 <TYPE>8-K <PUBLIC-DOCUMENT-COUNT>4 <PERIOD>20180424 <ITEMS>2.02 <ITEMS>9.01 <FILING-DATE>20180425 <DATE-OF-FILING-DATE-CHANGE>20180424 <FILER> <COMPANY-DATA> <CONFORMED-NAME>Randolph Bancorp, Inc. <CIK>0001667161 <ASSIGNED-SIC>6022 <IRS-NUMBER>000000000 <STATE-OF-INCORPORATION>MA <FISCAL-YEAR-END>1231 </COMPANY-DATA> <FILING-VALUES> <FORM-TYPE>8-K <ACT>34 <FILE-NUMBER>001-37780 <FILM-NUMBER>18772372 </FILING-VALUES> <BUSINESS-ADDRESS> <STREET1>10 CABOT PL <CITY>STOUGHTON <STATE>MA <ZIP>02072 <PHONE>877-963-2100 </BUSINESS-ADDRESS> <MAIL-ADDRESS> <STREET1>10 CABOT PL <CITY>STOUGHTON <STATE>MA <ZIP>02072 </MAIL-ADDRESS> </FILER>