Company:  OPNET TECHNOLOGIES INC
Form Type:  4
Filing Date:  6/8/2012 
CIK:  0001108924 
Address:  7255 WOODMONT AVENUE 
City, State, Zip:  BETHESDSA, Maryland 20814 
Telephone:  (240) 497-3000 
Fiscal Year:  03/31 
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    REPORTING OWNERS
    SIGNATURES