Perestroika - Nov 24, 2025 Form 4 Insider Report for Transocean Ltd. (RIG)

Role
Director
Signature
/s/ Daniel Ro-Trock by Power of Attorney
Stock symbol
RIG
Transactions as of
Nov 24, 2025
Transactions value $
$6,030,000
Form type
4
Date filed
11/25/2025, 05:31 PM
Previous filing
Sep 30, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Perestroika Director TURMSTRASSE 30, STEINHAUSEN, SWITZERLAND /s/ Daniel Ro-Trock by Power of Attorney 2025-11-25 0001729635

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction RIG Registered Shares Purchase $6.03M +1.5M +1.58% $4.02 96.6M Nov 24, 2025 By Perestroika (Cyprus) Ltd. F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 These securities are held directly by Perestroika (Cyprus) Ltd., which is a wholly owned subsidiary of Perestroika AS. Mr. Frederik Mohn is the sole director and owner of Perestroika AS and is the indirect beneficial owner of all securities owned by Perestroika AS.

Remarks:

Perestroika (Cyprus) Ltd. is a wholly owned subsidiary of Perestroika AS. Due to Perestroika AS's designation of a member of the board of directors of the Company, Perestroika (Cyprus) Ltd. may be deemed to be a director of the Company by deputization. Perestroika AS's right to designate a member of the Company's board of directors has since terminated.