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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
921112	Liberty Property Trust	LRY	Real Estate Investment Trusts (6798)	237768996

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1248361	Jr J George Alburger	C/O Liberty Property Trust 500 Chesterfield Parkway Malvern PA 19355	Exec. Vp, Cfo	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Shares Of Beneficial Interest ($0.001 Par Value)	Acquisiton	2011-03-09	100,362	$30.10	293,441	No	4	M	Direct
Common Shares Of Beneficial Interest ($0.001 Par Value)	Disposition	2011-03-09	100,362	$33.02	193,079	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Shares	Employee Stock Option (Right to Buy)	Disposition	2011-03-09	100,362	$0.00	100,362	$30.10

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0		2012-02-28	No	4	M	Direct

Footnotes

Represents the weighted average of a range of sale prices per share from $32.94 to $33.08. The reporting person undertakes to provide to the Staff of the Securities and Exchange Commission, the Company or any shareholder of the Company, upon request, full information regarding the number of common shares sold at each separate price.
Options became exercisable 20% after the first anniversary of the date of the grant, 50% after the second anniversary and fully after the third anniversary.
Received as employment compensation.