<ACCESSION-NUMBER>0001193125-18-154900 <TYPE>DEFA14A <PUBLIC-DOCUMENT-COUNT>3 <FILING-DATE>20180508 <DATE-OF-FILING-DATE-CHANGE>20180507 <EFFECTIVENESS-DATE>20180508 <FILER> <COMPANY-DATA> <CONFORMED-NAME>COLUMBIA PROPERTY TRUST, INC. <CIK>0001252849 <ASSIGNED-SIC>6798 <IRS-NUMBER>200068852 <STATE-OF-INCORPORATION>MD <FISCAL-YEAR-END>1231 </COMPANY-DATA> <FILING-VALUES> <FORM-TYPE>DEFA14A <ACT>34 <FILE-NUMBER>001-36113 <FILM-NUMBER>18812729 </FILING-VALUES> <BUSINESS-ADDRESS> <STREET1>1170 PEACHTREE STREET NE <STREET2>SUITE 600 <CITY>ATLANTA <STATE>GA <ZIP>30309 <PHONE>4044652200 </BUSINESS-ADDRESS> <MAIL-ADDRESS> <STREET1>1170 PEACHTREE STREET NE <STREET2>SUITE 600 <CITY>ATLANTA <STATE>GA <ZIP>30309 </MAIL-ADDRESS> <FORMER-COMPANY> <FORMER-CONFORMED-NAME>WELLS REAL ESTATE INVESTMENT TRUST II INC <DATE-CHANGED>20030708 </FORMER-COMPANY> </FILER>