<SEC-DOCUMENT>0001104659-12-009829.txt : 20120214
<SEC-HEADER>0001104659-12-009829.hdr.sgml : 20120214
<ACCEPTANCE-DATETIME>20120214172501
ACCESSION NUMBER:		0001104659-12-009829
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20120214
DATE AS OF CHANGE:		20120214

SUBJECT COMPANY:	

	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:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-51779
		FILM NUMBER:		12612869

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BROOKFIELD INVESTMENT MANAGEMENT INC.
		CENTRAL INDEX KEY:			0001273887
		IRS NUMBER:				133519673
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		THREE WORLD FINANCIAL CENTER
		STREET 2:		200 VESEY STREET, 10TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10281-1010
		BUSINESS PHONE:		2125498400

	MAIL ADDRESS:	
		STREET 1:		THREE WORLD FINANCIAL CENTER
		STREET 2:		200 VESEY STREET, 10TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10281-1010

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Brookfield Investment Management Inc.
		DATE OF NAME CHANGE:	20091001

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Hyperion Brookfield Asset Management, Inc.
		DATE OF NAME CHANGE:	20090716

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HYPERION CAPITAL MANAGEMENT INC
		DATE OF NAME CHANGE:	20031218
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>a12-4946_3sc13g.htm
<DESCRIPTION>SC 13G
<TEXT>


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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">SECURITIES   AND EXCHANGE COMMISSION</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Washington,   DC 20549</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>  </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">SCHEDULE 13G</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Under the Securities Exchange Act of 1934<br> (Amendment No.&nbsp;&nbsp;&nbsp;&nbsp;)</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;">
<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">Corporate Office Properties Trust</font></b></p>
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<p align="center" style="margin:0in 0in 12.0pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Name of Issuer)</font></p>
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<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Common Stock</font></b></p>
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<p align="center" style="margin:0in 0in 12.0pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Title of Class of Securities)</font></p>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in;">
<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">22002T108</font></b></p>
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<p align="center" style="margin:0in 0in 12.0pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(CUSIP Number)</font></p>
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<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">December 31, 2011</font></b></p>
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<p align="center" style="margin:0in 0in 12.0pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Date of Event Which Requires Filing of this Statement)</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check the appropriate box to designate the rule pursuant to which this Schedule is filed: </font></p>
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<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.46%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Wingdings" style="font-size:10.0pt;">x</font></p>    </td>
<td width="90%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:90.54%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Rule 13d-1(b)</font></p>    </td>   </tr>
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<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.46%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="90%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:90.54%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Rule 13d-1(c)</font></p>    </td>   </tr>
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<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.46%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="90%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:90.54%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Rule 13d-1(d)</font></p>    </td>   </tr>  </table>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. </font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The information required in the remainder of this cover page shall not be deemed to be &quot;filed&quot; for the purpose of Section 18 of the Securities Exchange Act of 1934 (&quot;Act&quot;) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.44%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">1.</font></p>    </td>
<td width="91%" colspan="4" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:91.3%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Names of Reporting Persons</font><font size="2" style="font-size:10.0pt;"><br>   Brookfield Investment Management Inc.</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<td width="3%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2. </font></p>    </td>
<td width="91%" colspan="4" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:91.3%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check the Appropriate Box   if a Member of a Group</font></p>    </td>   </tr>
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<td width="3%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.44%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" colspan="2" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(a)</font></p>    </td>
<td width="86%" colspan="2" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:86.04%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>   </tr>
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<td width="3%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.44%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" colspan="2" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(b)</font></p>    </td>
<td width="86%" colspan="2" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:86.04%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>   </tr>
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<td width="100%" colspan="6" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<td width="3%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.44%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3.</font></p>    </td>
<td width="91%" colspan="4" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:91.3%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">SEC Use Only </font></p>    </td>   </tr>
<tr>
<td width="100%" colspan="6" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<td width="3%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.44%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.</font></p>    </td>
<td width="91%" colspan="4" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:91.3%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Citizenship or Place of   Organization </font><font size="2" style="font-size:10.0pt;"><br>   Delaware</font></p>    </td>   </tr>
<tr>
<td width="13%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:13.84%;">
<p style="margin-left:0in;margin-right:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="4%" colspan="2" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.94%;">
<p align="right" style="margin-left:0in;margin-right:0in;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="81%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:81.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr style="page-break-inside:avoid;">
<td width="13%" colspan="3" rowspan="7" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:13.84%;">
<p style="margin-left:0in;margin-right:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Number of<br>   Shares<br>   Beneficially<br>   Owned by<br>   Each<br>   Reporting<br>   Person With</font></p>    </td>
<td width="4%" colspan="2" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.94%;">
<p style="margin-left:0in;margin-right:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">5.</font></p>    </td>
<td width="81%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:81.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Sole Voting Power </font><font size="2" style="font-size:10.0pt;"><br>   942,300</font></p>    </td>   </tr>
<tr style="page-break-inside:avoid;">
<td width="86%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:86.16%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr style="page-break-inside:avoid;">
<td width="4%" colspan="2" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.94%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">6.</font></p>    </td>
<td width="81%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:81.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Shared Voting Power</font><font size="2" style="font-size:10.0pt;">  <br>   None</font></p>    </td>   </tr>
<tr style="page-break-inside:avoid;">
<td width="86%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:86.16%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr style="page-break-inside:avoid;">
<td width="4%" colspan="2" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.94%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">7.</font></p>    </td>
<td width="81%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:81.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Sole Dispositive Power</font><font size="2" style="font-size:10.0pt;">  <br>   4,047,468</font></p>    </td>   </tr>
<tr style="page-break-inside:avoid;">
<td width="86%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:86.16%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr style="page-break-inside:avoid;">
<td width="4%" colspan="2" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.94%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">8.</font></p>    </td>
<td width="81%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:81.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Shared Dispositive Power <br>   None</font></p>    </td>   </tr>
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<td width="100%" colspan="6" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="3%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.44%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">9.</font></p>    </td>
<td width="91%" colspan="4" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:91.3%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Aggregate Amount   Beneficially Owned by Each Reporting Person</font><font size="2" style="font-size:10.0pt;"><br>   4,047,468</font></p>    </td>   </tr>
<tr>
<td width="100%" colspan="6" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="3%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.44%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">10.</font></p>    </td>
<td width="91%" colspan="4" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:91.3%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check if the Aggregate   Amount in Row (9) Excludes Certain Shares&nbsp;   </font><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>   </tr>
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<td width="100%" colspan="6" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="3%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.44%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">11.</font></p>    </td>
<td width="91%" colspan="4" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:91.3%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Percent of Class   Represented by Amount in Row (9)</font><font size="2" style="font-size:10.0pt;"><br>   5.62%</font></p>    </td>   </tr>
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<td width="100%" colspan="6" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="3%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:3.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.44%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">12.</font></p>    </td>
<td width="91%" colspan="4" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:91.3%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Type of Reporting Person</font><font size="2" style="font-size:10.0pt;"><br>   IA</font></p>    </td>   </tr>
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<td width="1" style="border:none;"></td>
<td width="36" style="border:none;"></td>
<td width="608" style="border:none;"></td>   </tr> </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2<a name="PB_2_110523_7056"></a></font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 1.</font></b></p>    </td>   </tr>
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<td width="2%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:2.86%;">
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="9%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.92%;">
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Item 1(a)&nbsp;&nbsp;&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Name of Issuer:<br>   Corporate Office Properties Trust</font></p>    </td>   </tr>
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<td width="2%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:2.86%;">
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="9%" colspan="3" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.92%;">
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Item 1(b)&nbsp;&nbsp;&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Address of Issuer&#146;s   Principal Executive Offices:<br>   6711 Columbia Gateway Drive, Suite 300</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Columbia, Maryland 21046</font></p>    </td>   </tr>
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<td width="100%" colspan="6" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<td width="100%" colspan="6" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 2.</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="6%" colspan="2" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.24%;">
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2(a)&nbsp;&nbsp;&nbsp;</font></p>    </td>
<td width="87%" colspan="2" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:87.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Name of Person Filing:<br>   Brookfield Investment Management Inc.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">AMP Capital Brookfield   (US) LLC </font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(together, the &#147;Reporting   Person&#148;)</font></p>    </td>   </tr>
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<td width="6%" colspan="2" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.54%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="6%" colspan="2" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.24%;">
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2(b)&nbsp;&nbsp;&nbsp;</font></p>    </td>
<td width="87%" colspan="2" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:87.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Address or Principal   Business Office or, if none, Residence:<br>   Brookfield Investment Management Inc.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Three World Financial   Center</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">200 Vesey Street</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">New York, NY 10281</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">AMP Capital Brookfield   (US) LLC</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">71 S. Wacker Drive, Suite   3400</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Chicago, IL 60606</font></p>    </td>   </tr>
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<td width="6%" colspan="2" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.54%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="6%" colspan="2" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.24%;">
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2(c)&nbsp;&nbsp;&nbsp;</font></p>    </td>
<td width="87%" colspan="2" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:87.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Citizenship:<br>   Brookfield Investment Management Inc. &#150; Delaware</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">AMP Capital Brookfield   (US) LLC &#150; Delaware</font></p>    </td>   </tr>
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<td width="6%" colspan="2" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.54%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="6%" colspan="2" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.24%;">
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2(d)&nbsp;&nbsp;&nbsp;</font></p>    </td>
<td width="87%" colspan="2" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:87.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Title of Class of   Securities:<br>   Common stock</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="6%" colspan="2" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:6.24%;">
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2(e)&nbsp;&nbsp;&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">CUSIP No.:<br>   22002T108</font></p>    </td>   </tr>
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<td width="100%" colspan="6" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 3.</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">If this statement is filed pursuant   to Rules 13d-1(b), or 13d-2(b) or (c), check whether the person filing is a:</font></b></p>    </td>   </tr>
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<td width="8%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.32%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.46%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">a.</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.36%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="82%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:82.86%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Broker or dealer   registered under section 15 of the Act;</font></p>    </td>   </tr>
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<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.46%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">b.</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.36%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="82%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:82.86%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Bank as defined in section   3(a)(6) of the Act;</font></p>    </td>   </tr>
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<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.46%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">c.</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.36%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="82%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:82.86%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Insurance company as   defined in section 3(a)(19) of the Act;</font></p>    </td>   </tr>
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<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.46%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">d.</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.36%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="82%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:82.86%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Investment company   registered under section 8 of the Investment Company Act of 1940;</font></p>    </td>   </tr>
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<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.46%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">e.</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.36%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">x</font></p>    </td>
<td width="82%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:82.86%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">An investment adviser in   accordance with Rule 13d-1(b)(1)(ii)(E);</font></p>    </td>   </tr>
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<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.46%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">f.</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.36%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="82%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:82.86%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">An employee benefit plan   or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F); </font></p>    </td>   </tr>
<tr>
<td width="8%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.32%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.46%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">g.</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.36%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="82%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:82.86%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">A parent holding company   or control person in accordance with Rule 13d-1(b)(1)(ii)(G);</font></p>    </td>   </tr>
<tr>
<td width="8%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.32%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.46%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">h.</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.36%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="82%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:82.86%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">A savings associations as   defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C.   1813);</font></p>    </td>   </tr>
<tr>
<td width="8%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.32%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.46%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">i.</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.36%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="82%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:82.86%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">A church plan that is   excluded from the definition of an investment company under section 3(c)(14)   of the Investment Company Act of 1940;</font></p>    </td>   </tr>
<tr>
<td width="8%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.32%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.46%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">j.</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.36%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="82%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:82.86%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">A non-U.S. institution in   accordance with Rule 240.13d-1(b)(1)(ii)(J);</font></p>    </td>   </tr>
<tr>
<td width="8%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:8.32%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.46%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">k.</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.36%;">
<p style="margin:3.0pt 0in 3.0pt 22.0pt;text-indent:-22.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>
<td width="82%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:82.86%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Group, in accordance with   Rule 240.13d-1(b)(1)(ii)(K). If filing as a non-U.S. institution in   accordance with</font></p>
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Rule   240.13d-1(b)(1)(ii)(J), please specify the type of institution:____________________________</font></p>    </td>   </tr>
<tr height="0">
<td width="21" style="border:none;"></td>
<td width="28" style="border:none;"></td>
<td width="13" style="border:none;"></td>
<td width="33" style="border:none;"></td>
<td width="33" style="border:none;"></td>
<td width="620" style="border:none;"></td>   </tr> </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3<a name="PB_3_110530_5335"></a></font></p>
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<div>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 4.</font></b></p>    </td>
<td width="90%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:90.28%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Ownership</font></b></p>    </td>   </tr>
<tr>
<td width="100%" colspan="4" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Provide the following   information regarding the aggregate number and percentage of the class of   securities of the issuer identified in Item 1. </font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.12%;">
<p align="center" style="margin:3.0pt 0in;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">a.</font></p>    </td>
<td width="86%" colspan="2" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:86.16%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Amount beneficially owned:&nbsp;&nbsp;&nbsp; </font></p>
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">See the response(s) to   Item 9 on the attached cover page(s).</font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.12%;">
<p align="center" style="margin:3.0pt 0in;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">b.</font></p>    </td>
<td width="86%" colspan="2" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:86.16%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Percent of class:&nbsp;&nbsp;&nbsp; </font></p>
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">See the response(s) to   Item 11 on the attached cover page(s).</font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.12%;">
<p align="center" style="margin:3.0pt 0in;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">c.</font></p>    </td>
<td width="86%" colspan="2" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:86.16%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Number of shares as to   which such person has:</font></p>
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.12%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="border:none;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.48%;">
<p align="center" style="margin:3.0pt 0in;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">i.</font></p>    </td>
<td width="80%" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:80.68%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Sole power to vote or to   direct the vote:&nbsp;&nbsp;&nbsp; </font></p>
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">See the response(s) to   Item 5 on the attached cover page(s).</font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.12%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.48%;">
<p align="center" style="margin:3.0pt 0in;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">ii.</font></p>    </td>
<td width="80%" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:80.68%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Shared power to vote or to   direct the vote:&nbsp;&nbsp;&nbsp;&nbsp; </font></p>
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">See the response(s) to   Item 6 on the attached cover page(s).</font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.12%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.48%;">
<p align="center" style="margin:3.0pt 0in;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">iii.</font></p>    </td>
<td width="80%" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:80.68%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Sole power to dispose or   to direct the disposition of:&nbsp;&nbsp;&nbsp; </font></p>
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">See the response(s) to   Item 7 on the attached cover page(s).</font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:4.12%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:5.48%;">
<p align="center" style="margin:3.0pt 0in;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">iv.</font></p>    </td>
<td width="80%" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 3.0pt 3.0pt;width:80.68%;">
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Shared power to dispose or   to direct the disposition of:&nbsp;&nbsp;&nbsp; </font></p>
<p style="margin:3.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">See the response(s) to   Item 8 on the attached cover page(s).</font></p>    </td>   </tr>
<tr>
<td width="100%" colspan="4" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 5.</font></b></p>    </td>
<td width="90%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:90.28%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Ownership of 5 Percent or Less of a   Class.</font></b></p>    </td>   </tr>
<tr>
<td width="100%" colspan="4" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Not applicable</font></p>    </td>   </tr>
<tr>
<td width="100%" colspan="4" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 6.</font></b></p>    </td>
<td width="90%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:90.28%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Ownership of More than 5 Percent on   Behalf of Another Person</font></b></p>    </td>   </tr>
<tr>
<td width="100%" colspan="4" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Clients of the Reporting Person have or may have the   right to receive or the power to direct the receipt of dividends from, or the   proceeds from the sale of, securities held in their accounts. No such client   is known to have such right or power to more than 5% of the class of   securities to which this report relates.</font></p>    </td>   </tr>
<tr>
<td width="100%" colspan="4" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="9%" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 7.</font></b></p>    </td>
<td width="90%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:90.28%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Identification and Classification   of the Subsidiary Which Acquired the Security Being Reported on By the Parent   Holding Company or Control Person.</font></b></p>    </td>   </tr>
<tr>
<td width="100%" colspan="4" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Not applicable</font></p>    </td>   </tr>
<tr>
<td width="100%" colspan="4" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 8.</font></b></p>    </td>
<td width="90%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:90.28%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Identification and Classification   of Members of the Group</font></b></p>    </td>   </tr>
<tr>
<td width="100%" colspan="4" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Not applicable</font></p>    </td>   </tr>
<tr>
<td width="100%" colspan="4" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="9%" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:9.72%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 9.</font></b></p>    </td>
<td width="90%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:90.28%;">
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Notice of Dissolution of Group</font></b></p>    </td>   </tr>
<tr>
<td width="100%" colspan="4" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Not applicable</font></p>    </td>   </tr>  </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4<a name="PB_4_110535_5796"></a></font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 10.</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Certifications</font></b></p>    </td>   </tr>
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<td width="100%" colspan="2" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By signing below I certify that, to the best of my   knowledge and belief, the securities referred to above were acquired and are   held in the ordinary course of business and 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.</font></p>    </td>   </tr>  </table>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">Signature.</font></i></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">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.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date: February 14, 2012</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Brookfield Investment Management Inc.</font></p>    </td>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>    </td>
<td width="46%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:46.08%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Seth Gelman</font></p>    </td>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Name: Seth Gelman</font></p>    </td>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
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<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Title: Chief Compliance Officer</font></p>    </td>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">AMP Capital Brookfield (US) LLC</font></p>    </td>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.92%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>    </td>
<td width="46%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:46.08%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Joseph Sommer</font></p>    </td>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
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<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Name: Joseph Sommer</font></p>    </td>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Title: Chief Compliance Officer</font></p>    </td>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>  </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">5<a name="PB_5_110544_2897"></a></font></p>
<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
</div>
<!-- SEQ.=1,FOLIO='5',FILE='C:\jms\sruthira\12-4946-3\task5106298\4946-3-ba.htm',USER='105201',CD='Feb 14 20:31 2012' -->


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<div style="font-family:Times New Roman;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><u><font size="2" face="Times New Roman" style="font-size:10.0pt;">Exhibit&nbsp;1</font></u></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">JOINT FILING AGREEMENT</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">In accordance with Rule&nbsp;13d-1(k)&nbsp;under the Securities Exchange Act of 1934, as amended, the undersigned agree to the joint filing on behalf of each of them of a Statement on Schedule 13G (including any and all amendments thereto) with respect to the Common Stock, par value $0.01 per share, of Corporate Office Properties Trust, and further agree that this Joint Filing Agreement shall be included as an Exhibit&nbsp;to such joint filings.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The undersigned further agree that each party hereto is responsible for the timely filing of such Statement on Schedule 13G and any amendments thereto, and for the accuracy and completeness of the information concerning such party contained therein; provided, however, that no party is responsible for the accuracy or completeness of the information concerning any other party, unless such party knows or has reason to believe that such information is inaccurate.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">This Joint Filing Agreement may be signed in counterparts with the same effect as if the signature on each counterpart were upon the same instrument.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">IN WITNESS WHEREOF, the undersigned have executed this Agreement as of February&nbsp;14, 2012.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Brookfield   Investment Management Inc.</font></p>    </td>   </tr>
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<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.76%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>    </td>
<td width="46%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:46.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/   Seth Gelman</font></p>    </td>   </tr>
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<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Name:   Seth Gelman</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Title:   Chief Compliance Officer</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">AMP   Capital Brookfield (US) LLC</font></p>    </td>   </tr>
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<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.76%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>    </td>
<td width="46%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:46.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Joseph Sommer</font></p>    </td>   </tr>
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<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Name:   </font><font size="2" style="font-size:10.0pt;">Joseph Sommer</font></p>    </td>   </tr>
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<td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Title:   Chief Compliance Officer</font></p>    </td>   </tr>  </table>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
</div>
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