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Prepared and filed by St Ives Financial
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<p align="center"><b><font face="serif" size="4">UNITED STATES</font></b><br>
<b><font face="serif" size="4">SECURITIES AND EXCHANGE COMMISSION</font></b><br>
<font size="2" face="serif">Washington, D.C. 20549</font></p>
<p align="center"><b><font face="serif" size="5">FORM 8-K</font></b><br>
<b><font face="serif" size="4">CURRENT REPORT</font></b></p>
<p align="center"><font size="2" face="serif"><b>Pursuant To Section 13 or 15(d)</b></font><br>
<font size="2" face="serif"><b>of the Securities Exchange Act of 1934</b></font></p>
<p align="center"><font face="serif" size="3">Date of Report (Date of earliest event reported): <b>September 18, 2006</b></font></p>
<p align="center"><b><font face="serif" size="5">Brandywine Operating Partnership, L.P.</font><u><font face="serif" size="4"><br></font></u></b>(Exact name of issuer as specified in charter)</p>
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<td align="center" width="33%"><font size="2" face="serif"><b>Delaware</b></font><br><font size="2" face="serif">(State or Other Jurisdiction</font><br><font size="2" face="serif">of Incorporation or</font><br><font size="2" face="serif">Organization)</font></td>
<td align="center" width="33%"><font size="2" face="serif"><b>000-24407</b></font><br><font size="2" face="serif">(Commission file number)</font></td>
<td align="center"><font size="2" face="serif"><b>23-2862640</b></font><br><font size="2" face="serif">(I.R.S. Employer</font><br><font size="2" face="serif">Identification</font><br><font size="2" face="serif">Number)</font></td>
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<p align="center"><font size="2" face="serif"><b>555 East Lancaster Avenue, Suite
      100</b></font><br>
<font size="2" face="serif"><b>Radnor, Pennsylvania 19087</b></font><br>
<font size="2" face="serif">(Address of principal executive offices)</font></p>
<p align="center"><font size="2" face="serif"><b>(610) 325-5600</b></font><br>
<font size="2" face="serif">(Registrant&#8217;s telephone number, including area code)</font></p>
<p align="left"><font size="2" face="serif">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):</font></p>
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<font size="2" face="serif"> Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</font></td>
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  <td>&nbsp;</td>
  <td align="left">&nbsp;</td>
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<td width="3%"><img src="emptybox.gif" width="12" height="12"></td>
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<font size="2" face="serif"> Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></td>
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  <td>&nbsp;</td>
  <td align="left">&nbsp;</td>
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<td width="3%"><img src="emptybox.gif" width="12" height="12"></td>
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<font size="2" face="serif"> Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</font></td>
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<td width="3%"><img src="emptybox.gif" width="12" height="12"></td>
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<font size="2" face="serif"> Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</font></td>
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<p><font size="2" face="serif"><b>Item 5.02 Departure of Directors or Principal
Officers; Election of Directors; Appointment of Principal Officers.</b></font></p>
<p align="left"><font size="2" face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On
    September 18, 2006, Scott W. Fordham, our Vice President and Chief Accounting
    Officer, advised us of his decision to accept an executive position with
    another real
    estate
    investment trust upon the expiration of his employment contract with us on
    January 5, 2007. Mr. Fordham will continue in his position until the January
    expiration date. We entered into a one-year employment contract with Mr.
    Fordham upon our merger with Prentiss Properties Trust in January 2006.</font></p>
<p><font size="2" face="serif"><b>Item 7.01 Regulation FD.</b></font></p>
<p align="left"><font size="2" face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Attached as an exhibit to this Form 8-K is a copy of a press release that we issued on September 20, 2006 announcing certain executive promotions and Mr. Fordham&#8217;s notice to us.</font></p>
<p><font size="2" face="serif"><b>Item 9.01 Financial Statements and Exhibits.</b></font></p>
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    <td width="6%"><font size="2" face="serif"><u>Exhibits</u></font></td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
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    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
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    <td><font size="2" face="serif">99.1</font></td>
    <td><font size="2" face="serif">Press release</font></td>
    <td>&nbsp;</td>
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<p align="center"><font size="2" face="serif">&nbsp;&nbsp;&nbsp;&nbsp;<b>&nbsp;SIGNATURES</b></font></p>
<p align="left"><font size="2" face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant
    to the requirements of the Securities and Exchange Act of 1934, the registrant
    has duly caused this report to be signed on its behalf by the undersigned,
    hereunto duly authorized.</font></p>
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    <td width="50%">&nbsp;</td>
    <td><font size="2" face="serif">B<font size="1">RANDYWINE</font> O<font size="1">PERATING</font> P<font size="1">ARTNERSHIP, <font size="2">L.P.</font>,</font></font></td>
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    <td>&nbsp;</td>
    <td><font size="2" face="serif">By: B<font size="1">RANDYWINE</font> R<font size="1">EALTY</font> T<font size="1">RUST</font>, <font size="1">ITS GENERAL
    PARTNER</font></font></td>
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    <td>&nbsp;</td>
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    <td><font size="2" face="serif">Date: September 21, 2006</font></td>
    <td><font size="2" face="serif">By:&nbsp;&nbsp;&nbsp;<u>/s/ Gerard
    H. Sweeney&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u></font></td>
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    <td>&nbsp;</td>
    <td><font size="2" face="serif">Gerard H. Sweeney<br>
      President and Chief Executive Officer</font></td>
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    <td>&nbsp;</td>
    <td>&nbsp;</td>
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    <td>&nbsp;</td>
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<p align="left"><font size="2" face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u><br>
</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font></p>
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<p align="center"><font size="2" face="serif"><b>EXHIBIT INDEX</b></font></p>
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    <td width="6%"><font size="2" face="serif">Exhibit<br>
<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;No.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u></font></td>
    <td width="3%">&nbsp;</td>
    <td align="left"><font size="2" face="serif"><u>Description</u></font></td>
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    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
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    <td align="center"><font size="2" face="serif">99.1</font></td>
    <td>&nbsp;</td>
    <td><font size="2" face="serif">Press Release</font></td>
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    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
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Prepared and filed by St Ives Financial
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant To Section 13 or 15(d)
of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported):
September 18, 2006
Brandywine Operating Partnership, L.P.
(Exact name of issuer as specified in charter)
Delaware
(State or Other Jurisdiction
of Incorporation or
Organization)
000-24407
(Commission file number)
23-2862640
(I.R.S. Employer
Identification
Number)
555 East Lancaster Avenue, Suite
      100
Radnor, Pennsylvania 19087
(Address of principal executive offices)
(610) 325-5600
(Registrant's telephone number, including area code)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Item 5.02 Departure of Directors or Principal
Officers; Election of Directors; Appointment of Principal Officers.
On
    September 18, 2006, Scott W. Fordham, our Vice President and Chief Accounting
    Officer, advised us of his decision to accept an executive position with
    another real
    estate
    investment trust upon the expiration of his employment contract with us on
    January 5, 2007. Mr. Fordham will continue in his position until the January
    expiration date. We entered into a one-year employment contract with Mr.
    Fordham upon our merger with Prentiss Properties Trust in January 2006.
Item 7.01 Regulation FD.
Attached as an exhibit to this Form 8-K is a copy of a press release that we issued on September 20, 2006 announcing certain executive promotions and Mr. Fordham's notice to us.
Item 9.01 Financial Statements and Exhibits.
Exhibits
99.1
Press release
SIGNATURES
Pursuant
    to the requirements of the Securities and Exchange Act of 1934, the registrant
    has duly caused this report to be signed on its behalf by the undersigned,
    hereunto duly authorized.
B
RANDYWINE
O
PERATING
P
ARTNERSHIP,
L.P.
,
By: B
RANDYWINE
R
EALTY
T
RUST
,
ITS GENERAL
    PARTNER
Date: September 21, 2006
By:
/s/ Gerard
    H. Sweeney
Gerard H. Sweeney
President and Chief Executive Officer
EXHIBIT INDEX
Exhibit
No.
Description
99.1
Press Release