Frederik Wilhelm Mohn - Sep 30, 2025 SCHEDULE 13D/A Report for TRANSOCEAN LTD. Shares, $0.10 par value (RIG)

Filing Manager
Mohn Frederik Wilhelm
Reporting Manager
Frederik W. Mohn
Security
TRANSOCEAN LTD. Shares, $0.10 par value
Symbol
RIG
Shares outstanding
945M shares
Disclosed Ownership
95.4M shares
Ownership
10.1%
Form type
SCHEDULE 13D/A
Date filed
9/30/2025, 09:38 PM
Date of event
Sep 30, 2025
SEC
View on sec.gov

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Frederik W. Mohn 10.1% 95.4M 343K 95.1M /s/ Frederik W. Mohn Frederik W. Mohn 0001729638
Perestroika AS 10.1% 95.1M 0 95.1M /s/ Frederik W. Mohn Chairman and Sole Director 0001729635
Perestroika (Cyprus) Ltd 10.1% 95.1M 0 95.1M /s/ Frederik W. Mohn Director 0001737912