<ACCESSION-NUMBER>0001628280-19-002811 <TYPE>10-K <PUBLIC-DOCUMENT-COUNT>159 <PERIOD>20181231 <FILING-DATE>20190312 <DATE-OF-FILING-DATE-CHANGE>20190312 <FILER> <COMPANY-DATA> <CONFORMED-NAME>FB Financial Corp <CIK>0001649749 <ASSIGNED-SIC>6022 <IRS-NUMBER>621216058 <STATE-OF-INCORPORATION>TN <FISCAL-YEAR-END>1231 </COMPANY-DATA> <FILING-VALUES> <FORM-TYPE>10-K <ACT>34 <FILE-NUMBER>001-37875 <FILM-NUMBER>19675037 </FILING-VALUES> <BUSINESS-ADDRESS> <STREET1>211 COMMERCE STREET <STREET2>SUITE 300 <CITY>NASHVILLE <STATE>TN <ZIP>37201 <PHONE>615-313-0080 </BUSINESS-ADDRESS> <MAIL-ADDRESS> <STREET1>211 COMMERCE STREET <STREET2>SUITE 300 <CITY>NASHVILLE <STATE>TN <ZIP>37201 </MAIL-ADDRESS> <FORMER-COMPANY> <FORMER-CONFORMED-NAME>First South Bancorp, Inc. <DATE-CHANGED>20150731 </FORMER-COMPANY> </FILER>