Company:  RAMBUS INC (RMBS)
Form Type:  4
Filing Date:  5/9/2012 
CIK:  0000917273 
Address:  1050 ENTERPRISE WAY, SUITE 700 
City, State, Zip:  SUNNYVALE, California 94089 
Telephone:  408-462-8000 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$7.97  
Change: 
-0.03 (-0.38%)  
Trade Time: 
May 17  
Market Cap: 
$889.78M
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES
  EXHIBIT 24
    POWER OF ATTORNEY