TRANSOCEAN LTD_June 4, 2025

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of
the Securities Exchange Act of 1934

Date of report (date of earliest event reported): June 4, 2025

TRANSOCEAN LTD.

(Exact name of Registrant as specified in its charter)


Switzerland	001-38373	98-0599916
(State or other jurisdiction of	(Commission	(I.R.S. Employer
incorporation or organization)	File Number)	Identification No.)


Turmstrasse 30
Steinhausen, Switzerland		CH-6312

(Address of principal executive offices)		(zip code)

Registrant’s telephone number, including area code: +41 (41) 749-0500

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))


Securities registered pursuant to Section 12(b) of the Act
Title of each class	Trading Symbol	Name of each exchange on which registered:
Shares, $0.10 par value	RIG	New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 7.01Regulation FD Disclosure.

Transocean Ltd. today announced that a two-well option was exercised for the Transocean Spitsbergen in Norway. The program is expected to commence in the first quarter of 2026 in direct continuation of the rig’s current program and contribute approximately $100 million in backlog, excluding additional services.

A copy of the press release announcing the fixture referred to above is attached hereto and incorporated herein by reference as Exhibit 99.1.

Item 9.01 Financial Statements and Exhibits

(d) Exhibits.


Exhibit No.		Description
99.1		Transocean Ltd. Announces Exercise of $100 Million Option for Harsh Environment Semisubmersible
101		Interactive data files pursuant to Rule 405 of Regulation S-T formatted in Inline Extensible Business Reporting Language
104		Cover Page Interactive Data File (formatted as inline XBRL).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


	TRANSOCEAN LTD.


Date: June 4, 2025	By:	/s/ Daniel Ro-Trock
		Daniel Ro-Trock
		Authorized Person

Transocean Ltd (Switzerland) filed SEC Form 8-K: Regulation FD Disclosure, Financial Statements and Exhibits