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Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0001086521-11-000002
Filing Date
2011-01-18
Accepted
2011-01-18 11:38:42
Documents
1

Document Format Files

Seq Description Document Type Size
1 FORM 13G corpoff1210.txt SC 13G/A 5473
  Complete submission text file 0001086521-11-000002.txt   7982
Mailing Address 6711 COLUMBIA GATEWAY DRIVE SUITE 300 COLUMBIA MD 21046
Business Address 6711 COLUMBIA GATEWAY DRIVE SUITE 300 COLUMBIA MD 21046 4432855400
CORPORATE OFFICE PROPERTIES TRUST (Subject) CIK: 0000860546 (see all company filings)

IRS No.: 232947217 | State of Incorp.: MD | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-51779 | Film No.: 11532337
SIC: 6798 Real Estate Investment Trusts

Mailing Address NEW TOKYO BUILDING 5TH FLOOR 3-1 MARUNOUCHI 3 CHOME CHIYODA-KU TOKYO M0 100-0005
Business Address NEW TOKYO BUILDING 5TH FLOOR 3-1 MARUNOUCHI 3 CHOME CHIYODA-KU TOKYO M0 100-0005 81-3-3216-0193
DIAM Co., Ltd. (Filed by) CIK: 0001068855 (see all company filings)

IRS No.: 000000000 | Fiscal Year End: 0331
Type: SC 13G/A