<SEC-DOCUMENT>0001104659-19-017827-index.html : 20190327 <SEC-HEADER>0001104659-19-017827.hdr.sgml : 20190327 <ACCEPTANCE-DATETIME>20190327160624 ACCESSION NUMBER: 0001104659-19-017827 CONFORMED SUBMISSION TYPE: DEFA14A PUBLIC DOCUMENT COUNT: 5 FILED AS OF DATE: 20190327 DATE AS OF CHANGE: 20190327 EFFECTIVENESS DATE: 20190327 FILER: COMPANY DATA: COMPANY CONFORMED NAME: CORPORATE OFFICE PROPERTIES TRUST CENTRAL INDEX KEY: 0000860546 STANDARD INDUSTRIAL CLASSIFICATION: REAL ESTATE INVESTMENT TRUSTS [6798] IRS NUMBER: 232947217 STATE OF INCORPORATION: MD FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: DEFA14A SEC ACT: 1934 Act SEC FILE NUMBER: 001-14023 FILM NUMBER: 19708459 BUSINESS ADDRESS: STREET 1: 6711 COLUMBIA GATEWAY DRIVE STREET 2: SUITE 300 CITY: COLUMBIA STATE: MD ZIP: 21046 BUSINESS PHONE: 4432855400 MAIL ADDRESS: STREET 1: 6711 COLUMBIA GATEWAY DRIVE STREET 2: SUITE 300 CITY: COLUMBIA STATE: MD ZIP: 21046 FORMER COMPANY: FORMER CONFORMED NAME: CORPORATE OFFICE PROPERTIES TRUST INC DATE OF NAME CHANGE: 19980105 FORMER COMPANY: FORMER CONFORMED NAME: ROYALE INVESTMENTS INC DATE OF NAME CHANGE: 19930328 FORMER COMPANY: FORMER CONFORMED NAME: ROYALE REIT INC DATE OF NAME CHANGE: 19600201 </SEC-HEADER> <DOCUMENT> <TYPE>DEFA14A <SEQUENCE>1 <FILENAME>a19-2538_3defa14a.htm <DESCRIPTION>DEFA14A <TEXT> Document 1 - file: a19-2538_3defa14a.htm
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