Company:  AVALONBAY COMMUNITIES INC (AVB)
Form Type:  4/A
Filing Date:  3/23/2012 
CIK:  0000915912 
Address:  671 N. GLEBE ROAD
SUITE 800
 
City, State, Zip:  ARLINGTON, Virginia 22203 
Telephone:  (703) 329-6300 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$138.58  
Change: 
-0.41 (-0.30%)  
Trade Time: 
May 24  
Market Cap: 
$17.93B
Description of Business
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  FORM 4/A
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES