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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
915912	Avalonbay Communities Inc	AVB	Real Estate Investment Trusts (6798)	770404318

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1484048	M William Mclaughlin	C/O Avalonbay Communities, Inc. Ballston Tower, 671 N. Glebe Road Arlington VA 22203	Executive Vice President	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 Stock, Par Value $.01 Per Share	Acquisiton	2010-12-02	11,426	$67.86	55,872	No	4	M	Direct
Common Stock, Par Value $.01 Per Share	Disposition	2010-12-02	11,426	$112.02	44,446	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 Stock	Stock Options (Right to Buy)	Disposition	2010-12-02	11,426	$0.00	11,426	$67.86

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
1,472	2006-02-11	2015-02-12	No	4	M	Direct

Footnotes

The amount of securities owned following the reported transaction reflects direct ownership of all shares of common stock, including restricted shares.
The options exercised were included in options granted under the issuer's stock option and incentive plan on February 11, 2005, which become exercisable in three annual installments beginning on February 11, 2006.
Following the reported transaction, the reporting person holds a total of 94,973 options to purchase the issuer's common stock granted on various dates and with varying exercise prices and vesting dates.