Company:  ADTRAN INC (ADTN)
Form Type:  4
Filing Date:  5/2/2012 
CIK:  0000926282 
Address:  901 EXPLORER BLVD 
City, State, Zip:  HUNTSVILLE, Alabama 35806 
Telephone:  (256) 963-8220 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$22.81  
Change: 
0.02 (0.09%)  
Trade Time: 
May 20  
Market Cap: 
$1.35B
Description of Business
Register for a Free Trial and access this filing in:     
  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES