<SEC-DOCUMENT>0001104659-18-043836-index.html : 20180703
<SEC-HEADER>0001104659-18-043836.hdr.sgml : 20180703
<ACCEPTANCE-DATETIME>20180703160913
ACCESSION NUMBER:		0001104659-18-043836
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180703
DATE AS OF CHANGE:		20180703
GROUP MEMBERS:		FREDERIK W. MOHN
GROUP MEMBERS:		PERESTROIKA (CYPRUS) LTD

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Transocean Ltd.
		CENTRAL INDEX KEY:			0001451505
		STANDARD INDUSTRIAL CLASSIFICATION:	DRILLING OIL & GAS WELLS [1381]
		IRS NUMBER:				980599916
		STATE OF INCORPORATION:			V8
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-84688
		FILM NUMBER:		18937191

	BUSINESS ADDRESS:	
		STREET 1:		TURMSTRASSE 30
		CITY:			STEINHAUSEN
		STATE:			V8
		ZIP:			6312
		BUSINESS PHONE:		41 41 749 0500

	MAIL ADDRESS:	
		STREET 1:		TURMSTRASSE 30
		CITY:			STEINHAUSEN
		STATE:			V8
		ZIP:			6312

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Perestroika
		CENTRAL INDEX KEY:			0001729635
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			V8
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		TRANSOCEAN LTD, TURMSTRASSE 30
		CITY:			STEINHAUSEN
		STATE:			V8
		ZIP:			6312
		BUSINESS PHONE:		0041417490500

	MAIL ADDRESS:	
		STREET 1:		TRANSOCEAN LTD, TURMSTRASSE 30
		CITY:			STEINHAUSEN
		STATE:			V8
		ZIP:			6312
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>a18-16390_1sc13da.htm
<DESCRIPTION>SC 13D/A
<TEXT>
Document 1 - file: a18-16390_1sc13da.htm

</DOCUMENT>
</SEC-DOCUMENT>