<ACCESSION-NUMBER>0000902219-21-000241 <TYPE>SC 13G <PUBLIC-DOCUMENT-COUNT>1 <FILING-DATE>20210204 <DATE-OF-FILING-DATE-CHANGE>20210204 <SUBJECT-COMPANY> <COMPANY-DATA> <CONFORMED-NAME>FLAGSTAR BANCORP INC <CIK>0001033012 <ASSIGNED-SIC>6035 <IRS-NUMBER>383150651 <STATE-OF-INCORPORATION>MI <FISCAL-YEAR-END>1231 </COMPANY-DATA> <FILING-VALUES> <FORM-TYPE>SC 13G <ACT>34 <FILE-NUMBER>005-53837 <FILM-NUMBER>21589720 </FILING-VALUES> <BUSINESS-ADDRESS> <STREET1>5151 CORPORATE DRIVE <CITY>TROY <STATE>MI <ZIP>48098-2639 <PHONE>248-312-2000 </BUSINESS-ADDRESS> <MAIL-ADDRESS> <STREET1>5151 CORPORATE DRIVE <CITY>TROY <STATE>MI <ZIP>48098-2639 </MAIL-ADDRESS> </SUBJECT-COMPANY> <FILED-BY> <COMPANY-DATA> <CONFORMED-NAME>WELLINGTON MANAGEMENT GROUP LLP <CIK>0000902219 <ASSIGNED-SIC>0000 <IRS-NUMBER>042683227 <STATE-OF-INCORPORATION>MA <FISCAL-YEAR-END>1231 </COMPANY-DATA> <FILING-VALUES> <FORM-TYPE>SC 13G </FILING-VALUES> <BUSINESS-ADDRESS> <STREET1>C/O WELLINGTON MANAGEMENT COMPANY LLP <STREET2>280 CONGRESS STREET <CITY>BOSTON <STATE>MA <ZIP>02210 <PHONE>6179515000 </BUSINESS-ADDRESS> <MAIL-ADDRESS> <STREET1>C/O WELLINGTON MANAGEMENT COMPANY LLP <STREET2>280 CONGRESS STREET <CITY>BOSTON <STATE>MA <ZIP>02210 </MAIL-ADDRESS> <FORMER-COMPANY> <FORMER-CONFORMED-NAME>WELLINGTON MANAGEMENT CO LLP <DATE-CHANGED>19960930 </FORMER-COMPANY> <FORMER-COMPANY> <FORMER-CONFORMED-NAME>WELLINGTON MANAGEMENT CO <DATE-CHANGED>19930426 </FORMER-COMPANY> </FILED-BY>