Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Mainardi Gabriel J
2. Date of Event Requiring Statement (Month/Day/Year)
07/09/2008
3. Issuer Name and Ticker or Trading Symbol
BRANDYWINE REALTY TRUST [BDN]
(Last)
(First)
(Middle)
555 EAST LANCASTER AVENUE, SUITE 100
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Vice President-Treasurer
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

RADNOR, PA 19446
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Shares of Beneficial Interest (1) (2) 322 (2)
D
 
Common Shares of Beneficial Interest (3) 299 (3)
D
 
Common Shares of Beneficial Interest (4) 2,573 (4)
D
 
Common Shares of Beneficial Interest (5) 2,550 (5)
D
 
Common Shares of Beneficial Interest (6) 4,283 (6)
D
 
Common Shares of Beneficial Interest (7) 4,120 (7)
D
 
Common Shares of Beneficial Interest (8) 4,290 (8)
D
 
Common Shares of Beneficial Interest (9) 4,694 (9)
D
 
Common Shares of Beneficial Interest (10) 4,998 (10)
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Mainardi Gabriel J
555 EAST LANCASTER AVENUE
SUITE 100
RADNOR, PA 19446
      Vice President-Treasurer  

Signatures

Gabriel J. Mainardi 01/06/2009
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The reporting person became an Officer on July 9, 2008.
(2) Reflects the grant of 322 restricted shares on February 10, 2006 which vest in five equal installments commencing January 1, 2007 and continuing on each successive January 1 until January 1, 2011.
(3) 23 Shares redeemed for taxes per Restricted Stock Vesting on January 1, 2007.
(4) Reflects the grant of 2274 restricted shares on February 9, 2007 which vest in five equal installments commencing March 15, 2008 and continuing on each successive January 1 until January 1, 2012.
(5) 23 Shares redeemed for taxes per Restricted Stock Vesting on January 1, 2008.
(6) Reflects the grant of 1733 restricted shares on March 20, 2008 which vest in three equal installments commencing on March 20, 2009 and continuing annually on March 20, 2010 and March 20, 2011.
(7) 163 Shares redeemed for taxes per restricted stock vesting on March 15, 2008.
(8) Includes 170 shares acquired in February, 2008 with a transaction price of $14.71 in a transaction exempt from Section 16(b) of the Securities Exchange Act under Brandywine Realty Trust's Employee Share Purchase Program ("ESPP").
(9) Includes 404 shares acquired in May, 2008 with a transaction price of $15.05 in a transaction exempt from Section 16(b) of the Securities Exchange Act under Brandywine Realty Trust's ESPP.
(10) Includes 304 shares acquired in August, 2008 with a t ransaction price of $14.08 in a transaction exempt from Section 16(b) of the Securities Exchange Act under Brandywine Realty Trust's ESPP.

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