UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(AMENDMENT NO. 1)
CORPORATE OFFICE PROPERTIES TRUST
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(NAME OF ISSUER)
COMMON SHARES
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(TITLE OF CLASS OF SECURITIES)
22002T108
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(CUSIP NUMBER)
DECEMBER 31, 2005
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(DATE OF EVENT WHICH REQUIRES
FILING OF THIS STATEMENT)
Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:
[_] Rule 13d-1(b)
[X] Rule 13d-1(c)
[_] Rule 13d-1(d)
CUSIP NO. 22002T108 13G PAGE 2 OF 6 PAGES
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1 NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
ING Groep N.V.
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2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) [_]
Not Applicable (b) [_]
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3 SEC USE ONLY
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4 CITIZENSHIP OR PLACE OF ORGANIZATION
The Netherlands
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5 SOLE VOTING POWER
3,786,419 (1)
NUMBER OF ---------------------------------------------------------
SHARES 6 SHARED VOTING POWER
BENEFICIALLY
OWNED BY EACH 0
REPORTING ---------------------------------------------------------
PERSON WITH: 7 SOLE DISPOSITIVE POWER
3,786,419 (1)
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8 SHARED DISPOSITIVE POWER
0
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9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,786,419
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10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES [_]
Not Applicable
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11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
9.57%
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12 TYPE OF REPORTING PERSON
HC
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1 These shares are held by indirect subsidiaries of ING Groep N.V., including
ING Clarion Real Estate Securities L.P. in their role as a discretionary manager
of client portfolios.
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CUSIP NO. 22002T108 13G PAGE 3 OF 6 PAGES
ITEM 1(A). NAME OF ISSUER:
Corporate Office Properties Trust
ITEM 1(B). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
8815 Centre Park Drive
Suite 400
Columbia, MD 21045
ITEM 2(A). NAME OF PERSON FILING:
ING Groep N.V.
ITEM 2(B). ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE:
Amstelveenseweg 500
1081 KL Amsterdam
The Netherlands
ITEM 2(C). CITIZENSHIP:
See item 4 on Page 2
ITEM 2(D). TITLE OF CLASS OF SECURITIES:
Common Shares
ITEM 2(E). CUSIP NUMBER:
22002T108
ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO RULES 13D-1(B), OR
13D-2(B) OR (C), CHECK WHETHER THE PERSON FILING IS A:
(Not Applicable)
(a) |_| Broker or dealer registered under Section 15 of the Securities
Exchange Act of 1934, as amended (the "Exchange Act");
(b) |_| Bank as defined in Section 3(a)(6) of the Exchange Act;
(c) |_| Insurance company as defined in Section 3(a)(19) of the Exchange
Act;
(d) |_| Investment company registered under Section 8 of the Investment
Company Act of 1940, as amended (the "Investment Company Act");
(e) |_| Investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E)
under the Exchange Act;
-3-
CUSIP NO. 22002T108 13G PAGE 4 OF 6 PAGES
(f) |_| Employee benefit plan or endowment fund in accordance with
Rule 13d-1(b)(1)(ii)(F) under the Exchange Act;
(g) |_| Parent holding company or control person in accordance with
Rule 13d-1(b)(ii)(G) under the Exchange Act;
(h) |_| Savings association as defined in Section 3(b) of the Federal
Deposit Insurance Act;
(i) |_| Church plan that is excluded from the definition of an
investment company under Section 3(c)(14) of the Investment
Company Act;
(j) |_| Group in accordance with Rule 13d-1(b)(1)(ii)(J) under the
Exchange Act.
ITEM 4. OWNERSHIP.
(a) Amount beneficially owned:
See item 9 on Page 2
(b) Percent of class:
See item 11 on Page 2
(c) Number of shares as to which such person has:
(i) Sole power to vote or to direct the vote:
See item 5 on Page 2
(ii) Shared power to vote or to direct the vote:
See item 6 on Page 2
(iii) Sole power to dispose or to direct the disposition of:
See item 7 on Page 2
(iv) Shared power to dispose or to direct the disposition of:
See item 8 on Page 2
ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.
Not Applicable
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CUSIP NO. 22002T108 13G PAGE 5 OF 6 PAGES
ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.
Not Applicable
ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH
ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING
COMPANY OR CONTROL PERSON.
Not Applicable
ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.
Not Applicable
ITEM 9. NOTICE OF DISSOLUTION OF GROUP.
Not Applicable
ITEM 10. CERTIFICATION.
By signing below we certify that, to the best of our knowledge
and belief, the securities referred to above were not acquired
and are not held for the purpose of or with the effect of
changing or influencing the control of the issuer of the
securities and were not acquired and are not held in connection
with or as a participant in any transaction having that purpose
or effect.
-5-
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.
February 13, 2006
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(Date)
ING GROEP N.V.
By:
/s/ Cornelis Blokbergen
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(Signature)
Cornelis Blokbergen
Head Legal Department
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(Name/Title)
/s/ Huib D. ter Haar
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(Signature)
Huib D. ter Haar
Group Compliance Officer
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(Name/Title)