Company:  TRANSOCEAN LTD. (RIG)
Form Type:  4
Filing Date:  5/22/2012 
CIK:  0001451505 
Address:  BLANDONNET INTERNATIONAL BUSINESS CENTER
BLDG F, 7TH FLOOR, CHEMIN DE BLANDONNET
 
City, State, Zip:  VERNIER,  1214 
Telephone:  41-58-792-9243 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$53.60  
Change: 
-0.43 (-0.80%)  
Trade Time: 
May 20  
Market Cap: 
$19.31B
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES