RIG / Transocean Ltd. - SEC फाइलिंग, वार्षिक रिपोर्ट, प्रॉक्सी स्टेटमेंट

ट्रांसओसियन लिमिटेड
US ˙ NYSE ˙ CH0048265513

मूलभूत आँकड़े
LEI DOL4HJ22ADYSIWES4H94
CIK 1451505
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Transocean Ltd.
SEC Filings (Chronological Order)
यह पृष्ठ SEC फाइलिंग की एक पूरी, कालानुक्रमिक सूची प्रदान करता है, ओनरशिप फाइलिंग को छोड़कर, जो हम अन्यत्र प्रदान करते हैं।
August 27, 2025 8-K

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): August 27, 2025 TRANSOCEAN LTD. (

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): August 27, 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 in

August 19, 2025 8-K

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): August 19, 2025 TRANSOCEAN LTD. (

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): August 19, 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 in

August 11, 2025 8-K

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): August 11, 2025 TRANSOCEAN LTD. (

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): August 11, 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 in

August 5, 2025 EX-FILING FEES

Table 1: Newly Registered Securities

Calculation of Filing Fee Tables S-8 Transocean Ltd. Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee 1 Equity Shares, par value $.10 per share Other 16,000,000 $ 2.79 $ 44,640,000.00 0.0001531 $ 6,834.38 Total Offering Amounts:

August 5, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001

August 5, 2025 S-8

As filed with the Securities and Exchange Commission on August 5, 2025

As filed with the Securities and Exchange Commission on August 5, 2025 Registration No.

August 4, 2025 EX-99.1

Three months ended

EXHIBIT 99.1 TRANSOCEAN LTD. REPORTS SECOND QUARTER 2025 RESULTS Three months ended Three months ended June 30, March 31, sequential June 30, year-over-year 2025 2025 change 2024 change (In millions, except per share amounts, percentages and backlog) Contract drilling revenues $ 988 $ 906 $ 82 $ 861 $ 127 Revenue efficiency (1) 96.6 % 95.5 % 96.9 % Operating and maintenance expense $ 599 $ 618 $ 1

August 4, 2025 8-K

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): August 4, 2025 TRANSOCEAN LTD. (E

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): August 4, 2025 TRANSOCEAN LTD. (Exact name of registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of incorporation or organization) (

July 22, 2025 8-K

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): July 22, 2025 TRANSOCEAN LTD. (Ex

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): July 22, 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 inco

July 16, 2025 8-K

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): July 16, 2025 TRANSOCEAN LTD. (Ex

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): July 16, 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 inco

July 16, 2025 EX-99.1

Dayrate on

Updated: July 16, 2025 Significant Updates Noted in Bold Primary Dayrate on Hookload Yr.

July 7, 2025 8-K

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): July 7, 2025 (July 3, 2025) TRANS

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): July 7, 2025 (July 3, 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.

June 20, 2025 8-K

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 20, 2025 (June 19, 2025) TRA

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 20, 2025 (June 19, 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.

June 4, 2025 EX-99.1

Exhibit 99.1

Exhibit 99.1 Transocean Ltd. Announces Exercise of $100 Million Option for Harsh Environment Semisubmersible STEINHAUSEN, Switzerland—June 4, 2025—Transocean Ltd. (NYSE: RIG) (“Transocean”) 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 progra

June 4, 2025 8-K

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. (Exa

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 incor

June 3, 2025 EX-3.2

Articles of Association of Transocean Ltd.

Exhibit 3.2 Statuten von Transocean Ltd. vom 30. Mai 2025 Articles of Association of Transocean Ltd. as of May 30, 2025 - 2 - Abschnitt 1: Firma, Sitz, Zweck und Dauer der Gesellschaft Section 1: Name, Place of Incorporation, Purpose and Duration of the Company Artikel 1 Article 1 Firma, Sitz Unter der Firma Transocean Ltd. (die Gesellschaft) besteht eine Aktiengesellschaft mit Sitz in Steinhausen

June 3, 2025 8-K

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 3, 2025 (May 28, 2025) TRANS

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 3, 2025 (May 28, 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.

June 3, 2025 EX-10.1

Amended and Restated Transocean Ltd. 2015 Long-Term Incentive Plan

Exhibit 10.1 Amended and Restated Transocean Ltd. 2015 Long-Term Incentive Plan TRANSOCEAN LTD. 2015 LONG-TERM INCENTIVE PLAN (as amended and restated effective May 30, 2025) 1. Plan. Transocean Ltd., a Swiss corporation (the “Company”), established this Transocean Ltd. 2015 Long-Term Incentive Plan (this “Plan”), effective as of May 15, 2015 (the “Effective Date”), as most recently amended and re

June 3, 2025 EX-3.3

Exhibit 3.3 to Transocean Ltd.’s Current Report on Form 8-K (Commission File No. 001-38373) filed on June 3, 2025

Exhibit 3.3 ORGANIZATIONAL REGULATIONS amended effective as of May 30, 2025 of Transocean Ltd., a Swiss corporation with its registered office in Steinhausen, Switzerland 1 | 12 TABLE OF CONTENTS ARTICLE 1 Scope and Basis 3 Section 1.01. Basis. 3 Section 1.02. Group. 3 Section 1.03. Organization. 3 Section 1.04. Interpretation. 3 ARTICLE 2 Corporate Organization 3 ARTICLE 3 The Board 3 Section 3.0

June 3, 2025 EX-3.1

Articles of Association of Transocean Ltd., amended as of May 28, 2025

Exhibit 3.1 Statuten von Transocean Ltd. vom 28. Mai 2025 Articles of Association of Transocean Ltd. as of May 28, 2025 - 2 - Abschnitt 1: Firma, Sitz, Zweck und Dauer der Gesellschaft Section 1: Name, Place of Incorporation, Purpose and Duration of the Company Artikel 1 Article 1 Firma, Sitz Unter der Firma Transocean Ltd. (die Gesellschaft) besteht eine Aktiengesellschaft mit Sitz in Steinhausen

April 29, 2025 EX-10.4

Exhibit 10.4 to Transocean Ltd.’s Current Report on Form 10-Q (Commission File No. 001-38373) filed on April 29, 2025

EXHIBIT 10.4 EMPLOYMENT AGREEMENT This Employment Agreement (the “Agreement”) is knowingly and voluntarily made and entered into as of April 29, 2025, by and between Transocean Offshore Deepwater Drilling Inc. (“TODDI”) and Jeremy D. Thigpen (hereinafter, “you” or “Executive”). All references in this Agreement to “Transocean” shall mean Transocean Ltd. and its parent, subsidiaries, affiliates and

April 29, 2025 EX-10.3

Exhibit 10.3 to Transocean Ltd.’s Current Report on Form 10-Q (Commission File No. 001-38373) filed on April 29, 2025

EXHIBIT 10.3 April 29, 2025 Mr. Keelan Adamson Transocean 1414 Enclave Parkway Houston, Texas 77077 Dear Mr. Adamson: This employment agreement (the “Agreement”) between you and Transocean Offshore Deepwater Drilling Inc. (“TODDI”) supersedes all prior arrangements with TODDI. All references in this Agreement to “Transocean” or “Company” shall mean Transocean Ltd. and its affiliates. 1.Effectivene

April 29, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 00

April 29, 2025 EX-10.1

Filed herewith

EXHIBIT 10.1 Transocean Ltd. 2015 Long-Term Incentive Plan (As Amended and Restated Effective May 16, 2024) Appendix A to Award Letter Terms and Conditions of Awards February 13, 2025 To the extent you are granted an award of (1) Performance Units and (2) Restricted Share Units (the award of the Performance Units and Restricted Share Units together, the “Awards”) under the Transocean Ltd. 2015 Lon

April 29, 2025 EX-10.2

Filed herewith

EXHIBIT 10.2 Transocean Ltd. 2015 Long-Term Incentive Plan (As Amended and Restated Effective May 16, 2024) Appendix A to Award Letter Terms and Conditions of Awards February 13, 2025 To the extent you are granted an award of (1) Performance Units and (2) Restricted Share Units (the award of the Performance Units and Restricted Share Units together, the “Awards”) under the Transocean Ltd. 2015 Lon

April 28, 2025 EX-99.1

Three months ended

EXHIBIT 99.1 TRANSOCEAN LTD. REPORTS FIRST QUARTER 2025 RESULTS Three months ended Three months ended March 31, December 31, sequential March 31, year-over-year 2025 2024 change 2024 change (In millions, except per share amounts, percentages and backlog) Contract drilling revenues $ 906 $ 952 $ (46) $ 763 $ 143 Revenue efficiency (1) 95.5 % 93.5 % 92.9 % Operating and maintenance expense $ 618 $ 5

April 28, 2025 8-K

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): April 28, 2025 TRANSOCEAN LTD. (E

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): April 28, 2025 TRANSOCEAN LTD. (Exact name of registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of incorporation or organization) (

April 16, 2025 EX-99.1

Dayrate on

Updated: April 16, 2025 Significant Updates Noted in Bold Primary Dayrate on Hookload Yr.

April 16, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): April 16, 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 inc

April 1, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ⌧ Filed by a Party other than the Registrant ◻ Check the appropriate box: ◻ Preliminary Proxy Statement ◻ Confidential, for Use of the Commission Only (as permitted by Rule 14

April 1, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ⌧ Filed by a Party other than the Registrant ◻ Check the appropriate box: ◻ Preliminary Proxy Statement ◻ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ◻ Defin

March 21, 2025 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ⌧ Filed by a Party other than the Registrant ◻ Check the appropriate box: ⌧ Preliminary Proxy Statement ◻ Confidential, for Use of the Commission Only (as permitted by Rule 14

February 18, 2025 EX-99.1

THIS PAGE INTENTIONALLY LEFT BLANK

TRANSOCEAN LTD. STATUTORY CONSOLIDATED FINANCIAL STATEMENTS For the years ended December 31, 2024, 2023 and 2022 THIS PAGE INTENTIONALLY LEFT BLANK Ernst & Young AG Maagplatz 1 P.O. Box 8005 Zurich Phone: +41 58 286 31 11 Fax: +41 58 286 30 04 www.ey.com/ch To the General Meeting of Zurich, February 18, 2025 Transocean Ltd., Steinhausen Report of the statutory auditor Report on the audit of the co

February 18, 2025 EX-19

Filed herewith

Exhibit 19 1POLICY This Insider Trading Policy (the “Policy”) addresses obligations of directors, officers and employees of Transocean Ltd.

February 18, 2025 EX-4.1

Filed herewith

Exhibit 4.1 DESCRIPTION OF TRANSOCEAN LTD.’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of December 31, 2024, Transocean Ltd. had one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended: registered shares, par value USD 0.10 per share (“shares”). Description of the Shares The following description of the sha

February 18, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark one) ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-383

February 18, 2025 EX-24

Filed herewith

Exhibit 24 TRANSOCEAN LTD. Power of Attorney WHEREAS, TRANSOCEAN LTD., a Swiss company (the “Company”), intends to file with the Securities and Exchange Commission (the “Commission”) pursuant to the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission promulgated thereunder, an Annual Report on Form 10-K for the fiscal year ended December 31, 2024 of the Com

February 18, 2025 EX-99.1

Three months ended

EXHIBIT 99.1 TRANSOCEAN LTD. REPORTS FOURTH QUARTER AND FULL YEAR 2024 RESULTS Three months ended Three months ended December 31, September 30, sequential December 31, year-over-year 2024 2024 change 2023 change (In millions, except per share amounts, percentages and backlog) Contract drilling revenues $ 952 $ 948 $ 4 $ 741 $ 211 Adjusted contract drilling revenues $ 952 $ 948 $ 4 $ 748 $ 204 Reve

February 18, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): February 18, 2025 TRANSOCEAN LTD. (Exact name of registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of incorporation or organization

February 18, 2025 EX-99.1

Transocean Ltd. Announces CEO Succession Plan

Exhibit 99.1 Transocean Ltd. Announces CEO Succession Plan STEINHAUSEN, Switzerland—February 18, 2025–Transocean Ltd. (NYSE: RIG) today announced its plan for key leadership changes pursuant to the company’s multi-year succession planning strategy. As part of this plan, Keelan Adamson, the company’s President and Chief Operating Officer, will become President and Chief Executive Officer following

February 18, 2025 8-K

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): February 18, 2025 (February 17, 2

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): February 18, 2025 (February 17, 2025) TRANSOCEAN LTD. (Exact name of registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of incorpora

February 18, 2025 8-K

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): February 18, 2025 TRANSOCEAN LTD.

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): February 18, 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

February 18, 2025 EX-21

Filed herewith

Exhibit 21 SUBSIDIARIES OF TRANSOCEAN LTD. (as of December 31, 2024) Entity Jurisdiction 15375 Memorial Corporation Delaware Aguas Profundas, Limitada Angola Angola Deepwater Drilling Company (Offshore Services) Ltd Bermuda AngoSantaFe - Prestacao de Servicos Petroliferos, Limitada Angola Arcade Drilling AS Norway Asie Sonat Offshore Sdn. Bhd. Malaysia Challenger Minerals Inc. California Deepwater

February 18, 2025 EX-99.2

THIS PAGE INTENTIONALLY LEFT BLANK

TRANSOCEAN LTD. STATUTORY FINANCIAL STATEMENTS For the years ended December 31, 2024 and 2023 THIS PAGE INTENTIONALLY LEFT BLANK Ernst & Young AG Maagplatz 1 P.O. Box 8005 Zurich Phone: +41 58 286 31 11 Fax: +41 58 286 30 04 www.ey.com/ch To the General Meeting of Zurich, February 18, 2025 Transocean Ltd., Steinhausen Report of the statutory auditor Report on the audit of the financial statements

February 12, 2025 8-K

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): February 12, 2025 TRANSOCEAN LTD.

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): February 12, 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

February 12, 2025 EX-99.1

(Short Tons)

Updated: February 12, 2025 Significant Updates Noted in Bold Primary Dayrate on Hookload Yr.

December 17, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): December 17, 2024 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

December 17, 2024 EX-99

Transocean Ltd. Announces $111 Million Ultra-Deepwater Drillship Contract

EXHIBIT 99.1 Transocean Ltd. Announces $111 Million Ultra-Deepwater Drillship Contract STEINHAUSEN, Switzerland—December 17, 2024—Transocean Ltd. (NYSE: RIG) (“Transocean”) today announced that a four-well option was exercised for the Dhirubhai Deepwater KG1 with Reliance Industries Limited in India. The estimated 270-day program is expected to commence in direct continuation of the rig’s firm ter

December 3, 2024 8-K

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): December 3, 2024 (December 2, 202

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): December 3, 2024 (December 2, 2024) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commission

October 31, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

October 30, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): October 30, 2024 TRANSOCEAN LTD. (Exact name of registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of incorporation or organization)

October 30, 2024 EX-99.1

Three months ended

EXHIBIT 99.1 TRANSOCEAN LTD. REPORTS THIRD QUARTER 2024 RESULTS Three months ended Three months ended September 30, June 30, sequential September 30, year-over-year 2024 2024 change 2023 change (In millions, except per share amounts, percentages and backlog) Contract drilling revenues $ 948 $ 861 $ 87 $ 713 $ 235 Adjusted contract drilling revenues $ 948 $ 861 $ 87 $ 721 $ 227 Revenue efficiency (

October 24, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): October 24, 2024 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 i

October 24, 2024 EX-99.1

Dayrate on

Updated: October 24, 2024 Significant Updates Noted in Bold Dayrate on Estimated Estimated Current Footnote Start End Contract Rig Type/Name References Location Customer Status Date Date (Dollars) Additional Comments Ultra-Deepwater Floaters (26) Drillships (25) Deepwater Titan 1 USGOM Chevron Firm Apr-23 Apr-28 455,000 Deepwater Atlas USGOM Beacon Firm Jul-24 May-25 455,000 USGOM Beacon Firm May-

October 17, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): October 17, 2024 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 i

October 17, 2024 EX-99.1

Transocean Ltd. Announces $193 Million Ultra-Deepwater Drillship Contract

EXHIBIT 99.1 Transocean Ltd. Announces $193 Million Ultra-Deepwater Drillship Contract STEINHAUSEN, Switzerland—October 17, 2024—Transocean Ltd. (NYSE: RIG) (“Transocean”) today announced a one-year contract for the Deepwater Conqueror with an undisclosed operator in the U.S. Gulf of Mexico. The contract is expected to commence in October 2025 and contribute approximately $193 million in backlog,

October 15, 2024 SC 13G/A

RIG / Transocean Ltd. / Hayfin Special Opportunities Fund II LP - AMENDMENT NO. 1 Passive Investment

SC 13G/A 1 sc13ga.htm AMENDMENT NO. 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* TRANSOCEAN LTD. (Name of Issuer) Shares, USD 0.10 par value (Title of Class of Securities) H8817H100 (CUSIP Number) September 30, 2024 (Date of Event which Requires Filing of this Statement) Check the appropriate box

October 15, 2024 EX-99.1

Joint Filing Agreement, dated as of October 15, 2024, by and among Hayfin Management Limited, Hayfin SOF II GP Limited, Hayfin Special Opportunities Fund II LP, Hayfin Topaz GP Limited, Hayfin Topaz LP, Hayfin Opal III GP Limited, Hayfin Opal III LP, and Hayfin SOF II USD Co-Invest LP

EX-99.1 2 ex99-1.htm JOINT FILING AGREEMENT Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree that they are jointly filing this statement on Schedule 13G, including all amendments thereto. Each of them is responsible for the timely filing of such statement and any amendments theret

September 10, 2024 EX-99.1

Transocean Ltd. Announces $232 Million Ultra-Deepwater Drillship Contract

Exhibit 99.1 Transocean Ltd. Announces $232 Million Ultra-Deepwater Drillship Contract STEINHAUSEN, Switzerland—September 10, 2024—Transocean Ltd. (NYSE: RIG) (“Transocean”) today announced a 365-day contract for the Deepwater Atlas with bp in the U.S. Gulf of Mexico. The contract also provides for a 365-day option. The program is expected to commence in the second quarter of 2028 and contribute a

September 10, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): September 10, 2024 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

September 4, 2024 8-K

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): September 4, 2024 TRANSOCEAN LTD.

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): September 4, 2024 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

September 4, 2024 EX-99.1

Transocean Ltd. Announces $123 Million Ultra-Deepwater Drillship Contract

Exhibit 99.1 Transocean Ltd. Announces $123 Million Ultra-Deepwater Drillship Contract STEINHAUSEN, Switzerland—September 4, 2024—Transocean Ltd. (NYSE: RIG) (“Transocean”) today announced that Reliance Industries Limited awarded a binding Letter of Award for the Dhirubhai Deepwater KG1 for six wells offshore India. The estimated 300-day program is expected to commence in the second quarter of 202

September 3, 2024 8-K

Financial Statements and Exhibits, Other Events, Material Impairments

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): September 3, 2024 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

August 20, 2024 EX-3.1

Exhibit 3.1 to Transocean Ltd.’s Current Report on Form 8-K (Commission File No. 001-38373) filed on August 20, 2024

Exhibit 3.1 ORGANIZATIONAL REGULATIONS amended effective as of August 15, 2024 of Transocean Ltd., a Swiss corporation with its registered office in Steinhausen, Switzerland 1 | 12 TABLE OF CONTENTS ARTICLE 1 Scope and Basis 3 Section 1.01. Basis. 3 Section 1.02. Group. 3 Section 1.03. Organization. 3 Section 1.04. Interpretation. 3 ARTICLE 2 Corporate Organization 3 ARTICLE 3 The Board 3 Section

August 20, 2024 8-K

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): August 20, 2024 (August 15, 2024)

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): August 20, 2024 (August 15, 2024) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commission (

August 1, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001

August 1, 2024 EX-4.3

Exhibit 4.3 to Transocean Ltd.’s Quarterly Report on Form 10-Q (Commission File No. 001-38373) for the quarter ended June 30, 2024

Exhibit 4.3 Execution Version SECOND SUPPLEMENTAL INDENTURE This SECOND SUPPLEMENTAL INDENTURE, dated as of May 30, 2024 (this “Supplemental Indenture”) is among Transocean Inc., a Cayman Islands exempted company (the “Company”), Transocean Enabler Financing Limited, a Cayman Islands exempted company (“Enabler Financing”) and Transocean Encourage Financing Limited, a Cayman Islands exempted compan

July 31, 2024 EX-99.1

Transocean Ltd. Announces $531 Million Ultra-Deepwater Drillship Contract

EXHIBIT 99.1 Transocean Ltd. Announces $531 Million Ultra-Deepwater Drillship Contract STEINHAUSEN, Switzerland—July 31, 2024—Transocean Ltd. (NYSE: RIG) (“Transocean”) today announced a 1,095-day contract for the Deepwater Invictus with bp in the U.S. Gulf of Mexico. The program is expected to commence in the first quarter of 2025 and is estimated to contribute approximately $531 million in backl

July 31, 2024 8-K

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): July 31, 2024 TRANSOCEAN LTD. (Ex

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): July 31, 2024 TRANSOCEAN LTD. (Exact name of registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of incorporation or organization) (C

July 31, 2024 8-K

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): July 31, 2024 TRANSOCEAN LTD. (Ex

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): July 31, 2024 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 inco

July 31, 2024 EX-99.1

Three months ended

EXHIBIT 99.1 TRANSOCEAN LTD. REPORTS SECOND QUARTER 2024 RESULTS Three months ended Three months ended June 30, March 31, sequential June 30, year-over-year 2024 2024 change 2023 change (In millions, except per share amounts, percentages and backlog) Contract drilling revenues $ 861 $ 763 $ 98 $ 729 $ 132 Adjusted contract drilling revenues $ 861 $ 767 $ 94 $ 748 $ 113 Revenue efficiency (1) 96.9

July 26, 2024 8-K/A

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): July 26, 2024 (July 24, 2024) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commission (I.

July 26, 2024 EX-99.1

Dayrate on

Updated: July 24, 2024 Significant Updates Noted in Bold Primary Dayrate on Hookload Yr.

July 24, 2024 8-K

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): July 24, 2024 TRANSOCEAN LTD. (Ex

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): July 24, 2024 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 inco

July 24, 2024 EX-99.1

Dayrate on

Updated: July 24, 2024 Significant Updates Noted in Bold Primary Dayrate on Hookload Yr.

July 9, 2024 EX-99

Joint Filing Agreement, dated as of July 9, 2024, by and among Hayfin Management Limited, Hayfin SOF II GP Limited, Hayfin Special Opportunities Fund II LP, Hayfin Topaz GP Limited, Hayfin Topaz LP, Hayfin Opal III GP Limited, Hayfin Opal III LP, and Hayfin SOF II USD Co-Invest LP

EX-99 2 ex99-1.htm JOINT FILING AGREEMENT Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree that they are jointly filing this statement on Schedule 13G, including all amendments thereto. Each of them is responsible for the timely filing of such statement and any amendments thereto,

July 9, 2024 SC 13G

RIG / Transocean Ltd. / Hayfin Special Opportunities Fund II LP Passive Investment

SC 13G 1 sc13g.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* TRANSOCEAN LTD. (Name of Issuer) Shares, USD 0.10 par value (Title of Class of Securities) H8817H100 (CUSIP Number) June 28, 2024 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pu

July 5, 2024 S-8 POS

As filed with the Securities and Exchange Commission on July 5, 2024

As filed with the Securities and Exchange Commission on July 5, 2024 Registration No.

July 1, 2024 S-3ASR

As filed with the Securities and Exchange Commission on June 28, 2024

As filed with the Securities and Exchange Commission on June 28, 2024 Registration No.

July 1, 2024 EX-FILING FEES

Filing Fee Exhibit

Exhibit 107 Calculation of Filing Fee Tables Form S-3ASR (Form Type) TRANSOCEAN LTD.

July 1, 2024 EX-5.3

Opinion of Carey Olsen

28 June 2024 Transocean Inc. 36C Dr. Roy’s Drive Bermuda House, 4th Floor George Town Grand Cayman KY1-1003 Cayman Islands Dear Sirs and Mesdames Transocean Inc. (the "Company") 1.   Background We have acted as Cayman Islands legal counsel to the Company. The Company has requested that we issue this legal opinion ("Opinion") to you in connection with the issuance of the Bonds pursuant to the Inden

July 1, 2024 EX-25.1

Statement of Eligibility and Qualification under the Trust Indenture Act of 1939 of Computershare Trust Company, N.A., as trustee

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ◻ CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b) (2) Computershare Trust Company, National Association (Exact name of trustee as specified in its charter)

June 28, 2024 EX-10.1

Exhibit 10.1 to Transocean Ltd.’s Current Report on Form 8-K (Commission File No. 001-38373) filed on June 28, 2024

EXHIBIT 10.1 REGISTRATION RIGHTS AGREEMENT by and among Transocean Ltd., and the Holders named on Schedule A hereto. Dated as of June 28, 2024 REGISTRATION RIGHTS AGREEMENT This Registration Rights Agreement, dated June 28, 2024 (this “Agreement”), by and among Transocean Ltd., a corporation incorporated under the laws of Switzerland (“Transocean”), on one hand, and each of the Persons set forth o

June 28, 2024 EX-3.1

Exhibit 3.1 to Transocean Ltd.’s Current Report on Form 8-K (Commission File No. 001-38373) filed on June 28, 2024

Exhibit 3.1 Statuten von Transocean Ltd. vom 27. Juni 2024 Articles of Association of Transocean Ltd. as of June 27, 2024 - 2 - Abschnitt 1: Firma, Sitz, Zweck und Dauer der Gesellschaft Section 1: Name, Place of Incorporation, Purpose and Duration of the Company Artikel 1 Article 1 Firma, Sitz Unter der Firma Transocean Ltd. (die Gesellschaft) besteht eine Aktiengesellschaft mit Sitz in Steinhaus

June 28, 2024 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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 28, 2024 (June 27, 2024) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commission (I.R.

June 28, 2024 S-3ASR

As filed with the Securities and Exchange Commission on June 28, 2024

As filed with the Securities and Exchange Commission on June 28, 2024 Registration No.

June 28, 2024 S-8

As filed with the Securities and Exchange Commission on June [ ], 2024

As filed with the Securities and Exchange Commission on June [ ], 2024 Registration No.

June 28, 2024 EX-FILING FEES

Filing Fee Exhibit

Exhibit 107 Calculation of Filing Fee Tables Form S-3ASR (Form Type) Transocean Ltd.

June 28, 2024 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Transocean Ltd. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities 1) Security Type Security Class Title Fee Calculation Rule (1) Amount Registered (2) Proposed Maximum Offering Price Per Unit (1) Maximum Aggregate Offering Price (1) Fee Rate Amount of Registration Fee Equity Shares, par valu

June 26, 2024 EX-99.1

Transocean Ltd. Announces $188 Million Ultra-Deepwater Drillship Contract Extension

‌ Exhibit 99.1 Transocean Ltd. Announces $188 Million Ultra-Deepwater Drillship Contract Extension STEINHAUSEN, Switzerland—June 26, 2024—Transocean Ltd. (NYSE: RIG) (“Transocean”) today announced a 365-day contract extension for the Deepwater Asgard with an independent operator in the U.S. Gulf of Mexico. The program is expected to commence in direct continuation of the rig’s current program and

June 26, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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 26, 2024 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 inco

June 24, 2024 8-K

Financial Statements and Exhibits, Material Impairments

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 24, 2024 (June 17, 2024) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commission (I.R.

June 21, 2024 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

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 21, 2024 (June 18, 2024) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commission (I.R.

June 21, 2024 EX-3.1

Articles of Association of Transocean Ltd.

Exhibit 3.1 Statuten von Transocean Ltd. vom 18. Juni 2024 Articles of Association of Transocean Ltd. as of June 18, 2024 - 2 - Abschnitt 1: Firma, Sitz, Zweck und Dauer der Gesellschaft Section 1: Name, Place of Incorporation, Purpose and Duration of the Company Artikel 1 Article 1 Firma, Sitz Unter der Firma Transocean Ltd. (die Gesellschaft) besteht eine Aktiengesellschaft mit Sitz in Steinhaus

June 14, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

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 14, 2024 (June 12, 2024) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commission (I.R.

June 4, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

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, 2024 (June 3, 2024) 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.

June 4, 2024 EX-99.1

Exhibit 99.1

Exhibit 99.1 Transocean Ltd. Announces $161 Million in Contract Extensions and Exercised Options for Harsh Environment Semisubmersibles STEINHAUSEN, Switzerland—June 4, 2024—Transocean Ltd. (NYSE: RIG) (“Transocean”) today announced contract fixtures for three of its harsh environment semisubmersibles. Together, the fixtures represent approximately $161 million in firm contract backlog. In Norway,

May 22, 2024 EX-10.2

Employment Agreement with Mr. Thad Vayda dated May 20, 2024

Exhibit 10.2 ‌ May 20, 2024 Mr. R. Thaddeus Vayda Transocean 1414 Enclave Parkway Houston, Texas 77077 Dear Mr. Vayda: This employment agreement (the “Agreement”) between you and Transocean Offshore Deepwater Drilling Inc. (“TODDI”) supersedes all prior arrangements with TODDI. All references in this Agreement to “Transocean” or “Company” shall mean Transocean Ltd. and its affiliates. 1. Effective

May 22, 2024 EX-10.1

Amended and Restated Transocean Ltd. 2015 Long-Term Incentive Plan

Exhibit 10.1 Amended and Restated Transocean Ltd. 2015 Long-Term Incentive Plan TRANSOCEAN LTD. 2015 LONG-TERM INCENTIVE PLAN (as amended and restated effective May 16, 2024) 1. Plan. Transocean Ltd., a Swiss corporation (the “Company”), established this Transocean Ltd. 2015 Long-Term Incentive Plan (this “Plan”), effective as of May 15, 2015 (the “Effective Date”), as most recently amended and re

May 22, 2024 8-K

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): May 22, 2024 (May 16, 2024) TRANS

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): May 22, 2024 (May 16, 2024) 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.

May 22, 2024 EX-3.1

Articles of Association of Transocean Ltd.

Exhibit 3.1 Statuten von Transocean Ltd. vom 16. Mai 2024 Articles of Association of Transocean Ltd. as of May 16, 2024 - 2 - Abschnitt 1: Firma, Sitz, Zweck und Dauer der Gesellschaft Section 1: Name, Place of Incorporation, Purpose and Duration of the Company Artikel 1 Article 1 Firma, Sitz Unter der Firma Transocean Ltd. (die Gesellschaft) besteht eine Aktiengesellschaft mit Sitz in Steinhausen

May 8, 2024 EX-4.1

Exhibit 4.1 to Transocean Ltd.’s Current Report on Form 8-K (Commission File No. 001-138373) filed on May 8, 2024

Exhibit 4.1 This FIRST SUPPLEMENTAL INDENTURE, dated as of May 8, 2024 (this “Supplemental Indenture”), is entered into among Transocean Titan Financing Limited (the “Company”), each of the Guarantors (as defined in the Indenture referred to below) signatory hereto and Truist Bank, as Trustee and Collateral Agent. RECITALS WHEREAS, the Company, the Guarantors, the Trustee and the Collateral Agent

May 8, 2024 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

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): May 8, 2024 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 incorp

April 30, 2024 8-K

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): April 29, 2024 TRANSOCEAN LTD. (E

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): April 29, 2024 TRANSOCEAN LTD. (Exact name of registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of incorporation or organization) (

April 30, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 00

April 30, 2024 EX-10.2

Exhibit 10.2 to Transocean Ltd.’s Quarterly Report on Form 10-Q (Commission File No. 001-38373) for the quarter ended March 31, 2024

EXHIBIT 10.2 Transocean Ltd. 2015 Long-Term Incentive Plan (As Amended and Restated Effective May 11, 2023) Appendix A to Award Letter Terms and Conditions of Awards February 8, 2024 To the extent you are granted an award of (1) Performance Units and (2) Restricted Share Units (the award of the Performance Units and Restricted Share Units together, the “Awards”) under the Transocean Ltd. 2015 Long

April 30, 2024 EX-4.2

Exhibit 4.2 to Transocean Ltd.’s Quarterly Report on Form 10-Q (Commission File No. 001-38373) for the quarter ended March 31, 2024

EXHIBIT 4.2 FIRST SUPPLEMENTAL INDENTURE This FIRST SUPPLEMENTAL INDENTURE, dated as of March 18, 2024 (this “Supplemental Indenture”) is among Transocean Aquila Limited, (the “Company”), Triton Aquila GmbH, a Swiss limited liability company (the “Additional Guarantor”), which is a subsidiary of Transocean Ltd., a Swiss corporation, Transocean DWA Limited, a Cayman Islands exempted company (the “R

April 30, 2024 EX-99.1

Three months ended

EXHIBIT 99.1 TRANSOCEAN LTD. REPORTS FIRST QUARTER 2024 RESULTS Three months ended March 31, December 31, Sequential 2024 2023 change (In millions, except per share amounts and backlog) Contract drilling revenues $ 763 $ 741 $ 22 Adjusted contract drilling revenues $ 767 $ 748 $ 19 Revenue efficiency (1) 92.9 % 97.0 % (4.1) % Operating and maintenance expense $ 523 $ 569 $ (46) Net income (loss) a

April 30, 2024 EX-10.1

Exhibit 10.1 to Transocean Ltd.’s Quarterly Report on Form 10-Q (Commission File No. 001-38373) for the quarter ended March 31, 2024

EXHIBIT 10.1 Transocean Ltd. 2015 Long-Term Incentive Plan (As Amended and Restated Effective May 11, 2023) Appendix A to Award Letter Terms and Conditions of Awards February 8, 2024 To the extent you are granted an award of (1) Performance Units and (2) Restricted Share Units (the award of the Performance Units and Restricted Share Units together, the “Awards”) under the Transocean Ltd. 2015 Long

April 18, 2024 EX-10.1

Exhibit 10.1 to Transocean Ltd.’s Current Report on Form 8-K (Commission File No. 001-38373) filed on April 18, 2024

Exhibit 10.1 Execution Version SIXTH AMENDMENT TO CREDIT AGREEMENT This SIXTH AMENDMENT TO CREDIT AGREEMENT (this “Sixth Amendment”), dated as of April 18, 2024, is among TRANSOCEAN INC., a Cayman Islands exempted company (the “Borrower”), CITIBANK, N.A., as administrative agent for the Lenders (as defined below) under the Credit Agreement referred to below (in such capacity, the “Administrative A

April 18, 2024 EX-4.1

Exhibit 4.1 to Transocean Ltd.’s Current Report on Form 8-K (Commission File No. 001-38373) filed on April 18, 2024

Exhibit 4.1 Execution Version TRANSOCEAN INC., as Issuer TRANSOCEAN LTD. TRANSOCEAN HOLDINGS 1 LIMITED TRANSOCEAN HOLDINGS 2 LIMITED TRANSOCEAN HOLDINGS 3 LIMITED, as Guarantors and TRUIST BANK, as Trustee INDENTURE Dated as of April 18, 2024 8.250% Senior Notes due 2029 8.500% Senior Notes due 2031 Table of Contents Page Article 1 Definitions and Incorporation by Reference SECTION 1.01. Definitio

April 18, 2024 8-K

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): April 18, 2024 TRANSOCEAN LTD. (E

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): April 18, 2024 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 inc

April 17, 2024 8-K

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): April 17, 2024 TRANSOCEAN LTD. (E

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): April 17, 2024 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 inc

April 17, 2024 EX-99.1

Dayrate on

Updated: April 17, 2024 Revisions Noted in Bold Primary Dayrate on Dayrate on Hookload Yr.

April 11, 2024 EX-99.1

Exhibit 99.1

Exhibit 99.1 Transocean Ltd. Announces Proposed Private Offering of Senior Notes Due 2029 and Senior Notes Due 2031 STEINHAUSEN, Switzerland—April 11, 2024—Transocean Ltd. (NYSE: RIG) announced today that Transocean Inc., its wholly-owned subsidiary (the “Company” and, together with Transocean Ltd., “Transocean”), commenced a private offering of $1,500,000,000 aggregate principal amount of Senior

April 11, 2024 EX-99.2

Title of Security

Exhibit 99.2 Transocean Ltd. Announces Cash Tender Offers STEINHAUSEN, Switzerland—April 11, 2024—Transocean Ltd. (NYSE: RIG) announced that Transocean Inc., its wholly-owned subsidiary (the “Company” and, together with Transocean Ltd., “Transocean”), has commenced an offer to purchase for cash (collectively, the “Offers” and each, an “Offer”) any and all of its outstanding 11.50% Senior Guarantee

April 11, 2024 8-K

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): April 11, 2024 TRANSOCEAN LTD. (E

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): April 11, 2024 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 inc

April 1, 2024 8-K

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): April 1, 2024 TRANSOCEAN LTD. (Ex

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): April 1, 2024 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 inco

April 1, 2024 EX-99.1

Transocean Ltd. Announces $195 Million Ultra-Deepwater Drillship Contract

Exhibit 99.1 Transocean Ltd. Announces $195 Million Ultra-Deepwater Drillship Contract STEINHAUSEN, Switzerland—April 1, 2024—Transocean Ltd. (NYSE: RIG) (“Transocean”) today announced a 365-day contract extension for the Deepwater Asgard with an independent operator in the U.S. Gulf of Mexico. The program is expected to commence in June 2024 in direct continuation of the rig’s current program and

March 26, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ⌧ Filed by a Party other than the Registrant ◻ Check the appropriate box: ◻ Preliminary Proxy Statement ◻ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ◻ Defin

March 26, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ⌧ Filed by a Party other than the Registrant ◻ Check the appropriate box: ◻ Preliminary Proxy Statement ◻ Confidential, for Use of the Commission Only (as permitted by Rule 14

March 15, 2024 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ⌧ Filed by a Party other than the Registrant ◻ Check the appropriate box: ⌧ Preliminary Proxy Statement ◻ Confidential, for Use of the Commission Only (as permitted by Rule 14

March 6, 2024 8-K

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): March 6, 2024 (March 1, 2024) TRA

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): March 6, 2024 (March 1, 2024) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commission (I.R.

March 6, 2024 EX-3.1

Articles of Association of Transocean Ltd.

Exhibit 3.1 Statuten von Transocean Ltd. vom 1. März 2024 Articles of Association of Transocean Ltd. as of March 1, 2024 - 2 - Abschnitt 1: Firma, Sitz, Zweck und Dauer der Gesellschaft Section 1: Name, Place of Incorporation, Purpose and Duration of the Company Artikel 1 Article 1 Firma, Sitz Unter der Firma Transocean Ltd. (die Gesellschaft) besteht eine Aktiengesellschaft mit Sitz in Steinhause

February 21, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark one) ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-383

February 21, 2024 EX-4.16_1

Exhibit 4.16.1 to Transocean Ltd.’s Annual Report on Form 10-K (Commission File No. 001-38373) for the year ended December 31, 2023

EXHIBIT 4.16.1 FIRST SUPPLEMENTAL INDENTURE This FIRST SUPPLEMENTAL INDENTURE, dated as of January 26, 2024 (this “Supplemental Indenture”) is among Transocean Inc., a Cayman Islands exempted company (the “Company”), Transocean Enabler Rigco Limited, a Cayman Islands exempted company (“Enabler Rigco”), Transocean Encourage Rigco Limited, a Cayman Islands exempted company (“Encourage Rigco” and tog

February 21, 2024 EX-4.1

Filed herewith

Exhibit 4.1 DESCRIPTION OF TRANSOCEAN LTD.’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of December 31, 2023, Transocean Ltd. had one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended: registered shares, par value CHF 0.10 per share (“shares”). Description of the Shares The following description of the sha

February 21, 2024 EX-97

Exhibit 97 to Transocean Ltd.’s Annual Report on Form 10-K (Commission File No. 001-38373) for the year ended December 31, 2023

Exhibit 97 TRANSOCEAN LTD. EXECUTIVE OFFICER INCENTIVE-BASED COMPENSATION RECOUPMENT POLICY 1. Purpose. The purpose of this Policy is to describe circumstances in which the Company will recover Erroneously Awarded Compensation and the process for that recovery. This Policy is intended to comply with (a) Section 954 of the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, as codifi

February 21, 2024 EX-24

Filed herewith

Exhibit 24 TRANSOCEAN LTD. Power of Attorney WHEREAS, TRANSOCEAN LTD., a Swiss company (the “Company”), intends to file with the Securities and Exchange Commission (the “Commission”) pursuant to the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission promulgated thereunder, an Annual Report on Form 10-K for the fiscal year ended December 31, 2023 of the Com

February 21, 2024 EX-99.2

THIS PAGE INTENTIONALLY LEFT BLANK

Exhibit 99.2 TRANSOCEAN LTD. STATUTORY FINANCIAL STATEMENTS For the years ended December 31, 2023 and 2022 THIS PAGE INTENTIONALLY LEFT BLANK Ernst & Young AG Maagplatz 1 P.O. Box 8005 Zurich Phone: +41 58 286 31 11 Fax: +41 58 286 30 04 www.ey.com/ch To the General Meeting of Zurich, February 20, 2024 Transocean Ltd., Steinhausen Report of the statutory auditor Report on the audit of the financia

February 21, 2024 EX-21

Filed herewith

Exhibit 21 SUBSIDIARIES OF TRANSOCEAN LTD. (as of December 31, 2023) Entity Jurisdiction 15375 Memorial Corporation Delaware Agon Shipping Inc. Marshall Islands Aguas Profundas, Limitada Angola Angola Deepwater Drilling Company (Offshore Services) Ltd Cayman Islands AngoSantaFe - Prestacao de Servicos Petroliferos, Limitada Angola Arcade Drilling AS Norway Asie Sonat Offshore Sdn. Bhd. Malaysia Bl

February 21, 2024 8-K

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): February 20, 2024 TRANSOCEAN LTD.

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): February 20, 2024 TRANSOCEAN LTD. (Exact name of registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of incorporation or organization

February 21, 2024 EX-99.1

THIS PAGE INTENTIONALLY LEFT BLANK

Exhibit 99.1 TRANSOCEAN LTD. STATUTORY CONSOLIDATED FINANCIAL STATEMENTS For the years ended December 31, 2023, 2022 and 2021 THIS PAGE INTENTIONALLY LEFT BLANK Ernst & Young AG Maagplatz 1 P.O. Box 8005 Zurich Phone: +41 58 286 31 11 Fax: +41 58 286 30 04 www.ey.com/ch To the General Meeting of Zurich, February 20, 2024 Transocean Ltd., Steinhausen Report of the statutory auditor Report on the au

February 20, 2024 8-K

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): February 19, 2024 TRANSOCEAN LTD.

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): February 19, 2024 TRANSOCEAN LTD. (Exact name of registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of incorporation or organization

February 20, 2024 EX-99.1

Three months ended

EXHIBIT 99.1 TRANSOCEAN LTD. REPORTS FOURTH QUARTER AND FULL YEAR 2023 RESULTS Three months ended December 31, September 30, Sequential 2023 2023 change (In millions, except per share amounts and backlog) Contract drilling revenues $ 741 $ 713 $ 28 Adjusted contract drilling revenues $ 748 $ 721 $ 27 Revenue efficiency 97.0 % 95.4 % 1.6 % Operating and maintenance expense $ 569 $ 524 $ 45 Net loss

February 14, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): February 14, 2024 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

February 14, 2024 EX-99.1

Dayrate on

Updated: February 14, 2024 Revisions Noted in Bold Primary Dayrate on Dayrate on Hookload Yr.

February 13, 2024 SC 13G/A

RIG / Transocean Ltd. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv02100-transoceanltd.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 11)* Name of issuer: Transocean Ltd Title of Class of Securities: Common Stock CUSIP Number: H8817H100 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the

February 12, 2024 SC 13G/A

RIG / Transocean Ltd. / PRIMECAP MANAGEMENT CO/CA/ - PRIMECAP MANAGEMENT CO/CA/ Passive Investment

SC 13G/A 1 riga621224.htm PRIMECAP MANAGEMENT CO/CA/ UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 6)* Transocean Ltd. (Name of Issuer) COM (Title of Class of Securities) H8817H100 (CUSIP Number) December 31, 2023 (Date of Event which Requires Filing of this Statement) Check the appropriate box to desig

January 11, 2024 8-K

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): January 11, 2024 TRANSOCEAN LTD.

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): January 11, 2024 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 i

December 12, 2023 EX-99.1

Transocean Ltd. Announces $251 Million Harsh Environment Semisubmersible Contract

Exhibit 99.1 Transocean Ltd. Announces $251 Million Harsh Environment Semisubmersible Contract STEINHAUSEN, Switzerland—December 12, 2023—Transocean Ltd. (NYSE: RIG) (“Transocean”) today announced a minimum 540-day contract for the Transocean Barents with OMV Petrom S.A. in the Romanian Black Sea at a rate of $465,000 per day, excluding additional services. The program is expected to commence in t

December 12, 2023 8-K

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): December 12, 2023 TRANSOCEAN LTD.

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): December 12, 2023 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

November 22, 2023 EX-10.1

Executive Severance Benefit Policy

Exhibit 10.1 Executive Severance Benefit Policy 1 POLICY The Company will provide executives who experience a Qualifying Termination with the severance benefits as defined herein. Whether a termination is a Qualifying Termination will be determined by the Committee in its sole discretion, subject to certain appeal rights as described in Section 6.7(b). 2 PURPOSE The purpose of this policy is to de

November 22, 2023 8-K

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): November 22, 2023 (November 16, 2

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): November 22, 2023 (November 16, 2023) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commissi

October 31, 2023 8-K

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): October 30, 2023 TRANSOCEAN LTD.

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): October 30, 2023 TRANSOCEAN LTD. (Exact name of registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of incorporation or organization)

October 31, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

October 31, 2023 EX-99.1

TRANSOCEAN LTD. AND SUBSIDIARIES

EXHIBIT 99.1 TRANSOCEAN LTD. REPORTS THIRD QUARTER 2023 RESULTS ● Total contract drilling revenues were $713 million, compared to $729 million in the second quarter of 2023 (total adjusted contract drilling revenues of $721 million, compared to $748 million in the second quarter of 2023); ● Revenue efficiency(1) was 95.4%, compared to 97.2% in the prior quarter; ● Operating and maintenance expense

October 18, 2023 8-K

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): October 18, 2023 TRANSOCEAN LTD.

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): October 18, 2023 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 i

October 18, 2023 EX-99.1

Dayrate on

z Updated: October 18, 2023 Revisions Noted in Bold Primary Dayrate on Dayrate on Hookload Yr.

October 11, 2023 8-K

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): October 11, 2023 TRANSOCEAN LTD.

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): October 11, 2023 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 i

October 11, 2023 EX-4.1

Exhibit 4.1 to Transocean Ltd.’s Current Report on Form 8-K (Commission File No. 001-38373) filed on October 11, 2023

Exhibit 4.1 Execution Version Transocean AQUILA limited, as Issuer, EACH OF THE GUARANTORS PARTY HERETO and TRUIST BANK, as Trustee and as Collateral Agent INDENTURE Dated as of October 11, 2023 8.0000% Senior Secured Notes due 2028 Table of Contents Page Article 1 Definitions and Incorporation by Reference‌1 Section 1.01.Definitions‌1 Section 1.02.Other Definitions‌27 Section 1.03.Rules of Constr

October 10, 2023 8-K

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): October 10, 2023 (October 3, 2023

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): October 10, 2023 (October 3, 2023) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commission

September 29, 2023 S-3ASR

As filed with the Securities and Exchange Commission on September 29, 2023

As filed with the Securities and Exchange Commission on September 29, 2023 Registration No.

September 29, 2023 EX-FILING FEES

Filing Fee Exhibit

Exhibit 107 Calculation of Filing Fee Tables Form S-3ASR (Form Type) Transocean Ltd.

September 14, 2023 8-K

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): September 14, 2023 (September 9,

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): September 14, 2023 (September 9, 2023) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commiss

September 14, 2023 EX-3.1

Exhibit 3.1 to Transocean Ltd.’s Current Report on Form 8-K (Commission File No. 001-38373) filed on September 14, 2023

Exhibit 3.1 Statuten von Transocean Ltd. vom 12. September 2023 Articles of Association of Transocean Ltd. as of September 12, 2023 - 2 - Abschnitt 1: Firma, Sitz, Zweck und Dauer der Gesellschaft Section 1: Name, Place of Incorporation, Purpose and Duration of the Company Artikel 1 Article 1 Firma, Sitz Unter der Firma Transocean Ltd. (die Gesellschaft) besteht eine Aktiengesellschaft mit Sitz in

September 14, 2023 EX-99.1

Transocean Ltd. Announces $486 Million Contract for

Exhibit 99.1 Transocean Ltd. Announces $486 Million Contract for Deepwater Aquila STEINHAUSEN, Switzerland—September 14, 2023—Transocean Ltd. (NYSE: RIG) (“Transocean”) today announced a three-year award for the newbuild ultra-deepwater drillship Deepwater Aquila with a national oil company for work offshore Brazil. The contract is expected to commence in the third quarter of 2024 and represents a

September 1, 2023 S-3ASR

As filed with the Securities and Exchange Commission on September 1, 2023

As filed with the Securities and Exchange Commission on September 1, 2023 Registration No.

September 1, 2023 EX-FILING FEES

Filing Fee Exhibit

Exhibit 107 Calculation of Filing Fee Tables Form S-3ASR (Form Type) Transocean Ltd.

August 30, 2023 EX-99.1

Transocean Ltd. Announces $222 Million Ultra-Deepwater Drillship Contract

Exhibit 99.1 Transocean Ltd. Announces $222 Million Ultra-Deepwater Drillship Contract STEINHAUSEN, Switzerland—August 30, 2023—Transocean Ltd. (NYSE: RIG) (“Transocean”) today announced that Oil and Natural Gas Corporation Ltd awarded the Dhirubhai Deepwater KG1 a binding Notification of Award for work offshore India. The 21-month program is expected to commence in the first quarter of 2024 and w

August 30, 2023 8-K

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): August 30, 2023 TRANSOCEAN LTD. (

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): August 30, 2023 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 in

August 1, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001

July 31, 2023 EX-99.1

TRANSOCEAN LTD. AND SUBSIDIARIES

EXHIBIT 99.1 TRANSOCEAN LTD. REPORTS SECOND QUARTER 2023 RESULTS ● Total contract drilling revenues were $729 million, compared to $649 million in the first quarter of 2023 (total adjusted contract drilling revenues of $748 million, compared to $667 million in the first quarter of 2023); ● Revenue efficiency(1) was 97.2%, compared to 97.8% in the prior quarter; ● Operating and maintenance expense

July 31, 2023 8-K

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): July 31, 2023 TRANSOCEAN LTD. (Ex

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): July 31, 2023 TRANSOCEAN LTD. (Exact name of registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of incorporation or organization) (C

July 19, 2023 8-K

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): July 19, 2023 TRANSOCEAN LTD. (Ex

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): July 19, 2023 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 inco

July 19, 2023 EX-99.1

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July 18, 2023 8-K

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): July 18, 2023 TRANSOCEAN LTD. (Ex

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): July 18, 2023 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 inco

July 18, 2023 EX-99.1

Transocean Ltd. Announces $518 Million Ultra-Deepwater Drillship Contract

Exhibit 99.1 Transocean Ltd. Announces $518 Million Ultra-Deepwater Drillship Contract STEINHAUSEN, Switzerland—July 18, 2023—Transocean Ltd. (NYSE: RIG) (“Transocean”) today announced that an independent operator awarded a 1,080-day contract for a high-specification seventh-generation, ultra-deepwater drillship in the Gulf of Mexico offshore Mexico. One of three drillships will be selected by Tra

July 5, 2023 EX-99.1

Transocean Ltd. Announces $172 Million in Options Exercised for Harsh Environment Semisubmersible

Exhibit 99.1 Transocean Ltd. Announces $172 Million in Options Exercised for Harsh Environment Semisubmersible STEINHAUSEN, Switzerland—July 5, 2023—Transocean Ltd. (NYSE: RIG) (“Transocean”) today announced that six one-well options have been exercised for the Transocean Encourage in Norway. The estimated 370 days of work will contribute approximately $172 million in backlog. The work is expected

July 5, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): July 5, 2023 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 incor

June 28, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Material Impairments

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 28, 2023 (June 22, 2023) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commission (I.R.

June 28, 2023 EX-99.1

Exhibit 99.1

Exhibit 99.1 Transocean Ltd. Announces $184 Million Award for Harsh Environment Semisubmersible STEINHAUSEN, Switzerland—June 28, 2023—Transocean Ltd. (NYSE: RIG) (“Transocean”) today announced a 16-well binding award for the Transocean Equinox in Australia for a consortium of four operators. The estimated 380-day campaign contributes approximately $184 million in backlog, excluding full compensat

June 16, 2023 S-8

As filed with the Securities and Exchange Commission on June 16, 2023

As filed with the Securities and Exchange Commission on June 16, 2023 Registration No.

June 16, 2023 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Transocean Ltd. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities 1) Security Type Security Class Title Fee Calculation Rule (1) Amount Registered (2) Proposed Maximum Offering Price Per Unit (1) Maximum Aggregate Offering Price (1) Fee Rate Amount of Registration Fee Equity Shares, par valu

May 16, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

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): May 16, 2023 (May 11, 2023) 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.

May 16, 2023 EX-3.1

Articles of Association of Transocean Ltd.

Exhibit 3.1 Statuten von Transocean Ltd. vom 11. Mai 2023 Articles of Association of Transocean Ltd. as of May 11, 2023 - 2 - Abschnitt 1: Firma, Sitz, Zweck und Dauer der Gesellschaft Section 1: Name, Place of Incorporation, Purpose and Duration of the Company Artikel 1 Article 1 Firma, Sitz Unter der Firma Transocean Ltd. (die Gesellschaft) besteht eine Aktiengesellschaft mit Sitz in Steinhausen

May 16, 2023 EX-3.2

Exhibit 3.2 to Transocean Ltd.’s Current Report on Form 8-K (Commission File No. 001-38373) filed on May 16, 2023

Exhibit 3.2 ORGANIZATIONAL REGULATIONS amended effective as of May 12, 2023 of Transocean Ltd., a Swiss corporation with its registered office in Steinhausen, Switzerland 1 | 12 TABLE OF CONTENTS ARTICLE 1 Scope and Basis 3 Section 1.01. Basis. 3 Section 1.02. Group. 3 Section 1.03. Organization. 3 Section 1.04. Interpretation. 3 ARTICLE 2 Corporate Organization 3 ARTICLE 3 The Board 3 Section 3.0

May 16, 2023 EX-10.1

Amended and Restated Transocean Ltd. 2015 Long-Term Incentive Plan

Exhibit 10.1 TRANSOCEAN LTD. 2015 LONG-TERM INCENTIVE PLAN (as amended and restated effective May 11, 2023) 1. Plan. Transocean Ltd., a Swiss corporation (the “Company”), established this Transocean Ltd. 2015 Long-Term Incentive Plan (this “Plan”), effective as of May 15, 2015 (the “Effective Date”), as most recently amended and restated effective May 11, 2023. 2. Objectives. This Plan is designed

May 10, 2023 EX-99.1

Exhibit 99.1

Exhibit 99.1 Transocean Ltd. Announces $137 Million Contract Award for Harsh Environment Semisubmersible STEINHAUSEN, Switzerland—May 10, 2023—Transocean Ltd. (NYSE: RIG) (“Transocean”) announced today that the Transocean Equinox was awarded a five-well contract in Australia by a major operator, representing approximately $137 million in firm backlog, excluding full payment for mobilization and a

May 10, 2023 8-K

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): May 10, 2023 TRANSOCEAN LTD. (Exa

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): May 10, 2023 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 incor

May 2, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 00

May 1, 2023 EX-99.1

TRANSOCEAN LTD. AND SUBSIDIARIES

EXHIBIT 99.1 TRANSOCEAN LTD. REPORTS FIRST QUARTER 2023 RESULTS ● Total contract drilling revenues were $649 million, compared to $606 million in the fourth quarter of 2022 (total adjusted contract drilling revenues of $667 million, compared to $625 million in the fourth quarter of 2022); ● Revenue efficiency(1) was 97.8%, compared to 98.0% in the prior quarter; ● Operating and maintenance expense

May 1, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): May 1, 2023 TRANSOCEAN LTD. (Exact name of registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of incorporation or organization) (Com

April 18, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): April 18, 2023 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 inc

April 18, 2023 EX-99.1

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April 10, 2023 EX-3.1

Articles of Association of Transocean Ltd.

Exhibit 3.1 Statuten von Transocean Ltd. vom 6. April 2023 Articles of Association of Transocean Ltd. as of April 6, 2023 - 2 - Abschnitt 1: Firma, Sitz, Zweck und Dauer der Gesellschaft Section 1: Name, Place of Incorporation, Purpose and Duration of the Company Artikel 1 Article 1 Firma, Sitz Unter der Firma Transocean Ltd. (die Gesellschaft) besteht eine Aktiengesellschaft mit Sitz in Steinhaus

April 10, 2023 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Other Events

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): April 10, 2023 (April 6, 2023) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commission (I.R

March 30, 2023 8-K

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): March 30, 2023 (March 28, 2023) T

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): March 30, 2023 (March 28, 2023) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commission (I.

March 30, 2023 EX-3.1

Articles of Association of Transocean Ltd.

Exhibit 3.1 Statuten von Transocean Ltd. vom 28. März 2023 Articles of Association of Transocean Ltd. as of March 28, 2023 - 2 - Abschnitt 1: Firma, Sitz, Zweck und Dauer der Gesellschaft Section 1: Name, Place of Incorporation, Purpose and Duration of the Company Artikel 1 Article 1 Firma, Sitz Unter der Firma Transocean Ltd. (die Gesellschaft) besteht eine Aktiengesellschaft mit Sitz in Steinhau

March 29, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): March 29, 2023 (March 28, 2023) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commission (I.

March 29, 2023 EX-99.2

Transocean Ltd. Announces Harsh Environment Contract Award and Extension Totaling $113 Million

Exhibit 99.2 Transocean Ltd. Announces Harsh Environment Contract Award and Extension Totaling $113 Million STEINHAUSEN, Switzerland—March 29, 2023—Transocean Ltd. (NYSE: RIG) today announced contract fixtures for two of its harsh environment semisubmersibles. Together, the fixtures represent approximately $113 million in firm contract backlog. Transocean Endurance was awarded a multi-well plug an

March 29, 2023 EX-99.1

Transocean Ltd. Announces Harsh Environment Contract Awards Totaling $382 Million with Equinor, Enters into Collaboration Agreement

Exhibit 99.1 Transocean Ltd. Announces Harsh Environment Contract Awards Totaling $382 Million with Equinor, Enters into Collaboration Agreement STEINHAUSEN, Switzerland—March 28, 2023—Transocean Ltd. (NYSE: RIG) today announced contract awards for two of its harsh environment semisubmersibles. Together, the fixtures represent approximately $382 million in firm contract backlog. Transocean Enabler

March 21, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ⌧ Filed by a Party other than the Registrant ◻ Check the appropriate box: ◻ Preliminary Proxy Statement ◻ Confidential, for Use of the Commission Only (as permitted by Rule 14

March 21, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

DEFA14A 1 tmb-20230321xdefa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ⌧ Filed by a Party other than the Registrant ◻ Check the appropriate box: ◻ Preliminary Proxy Statement ◻ Confidential, for Use of the Commission Only

March 10, 2023 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ⌧ Filed by a Party other than the Registrant ◻ Check the appropriate box: ⌧ Preliminary Proxy Statement ◻ Confidential, for Use of the Commission Only (as permitted by Rule 14

February 23, 2023 EX-24

Filed herewith

Exhibit 24 TRANSOCEAN LTD. Power of Attorney WHEREAS, TRANSOCEAN LTD., a Swiss company (the “Company”), intends to file with the Securities and Exchange Commission (the “Commission”) pursuant to the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission promulgated thereunder, an Annual Report on Form 10-K for the fiscal year ended December 31, 2022 of the Com

February 23, 2023 EX-99.2

THIS PAGE INTENTIONALLY LEFT BLANK

Exhibit 99.2 TRANSOCEAN LTD. STATUTORY FINANCIAL STATEMENTS For the years ended December 31, 2022 and 2021 THIS PAGE INTENTIONALLY LEFT BLANK Ernst & Young AG Maagplatz 1 P.O. Box 8005 Zurich Phone: +41 58 286 31 11 Fax: +41 58 286 30 04 www.ey.com/ch To the General Meeting of Zurich, February 22, 2023 Transocean Ltd., Steinhausen Report of the statutory auditor on the financial statements Transoc

February 23, 2023 EX-4.1

Filed herewith

Exhibit 4.1 DESCRIPTION OF TRANSOCEAN LTD.’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of December 31, 2022, Transocean Ltd. had two classes of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended: registered shares, par value CHF 0.10 per share (“shares”) and exchangeable bonds due 2023 (“Exchangeable Bonds”). Descr

February 23, 2023 EX-10.50

Exhibit 10.50 to Transocean Ltd.’s Annual Report on Form 10-K (Commission File No. 001-38373) for the year ended December 31, 2022 filed on February 23, 2023

Exhibit 10.50 Transocean Ltd. 2015 Long-Term Incentive Plan (As Amended and Restated Effective May 27, 2021) Appendix A to Award Letter Terms and Conditions of Awards February 9, 2023 To the extent you are granted an award of (1) Performance Units and (2) Restricted Share Units (the award of the Performance Units and Restricted Share Units together, the “Awards”) under the Transocean Ltd. 2015 Lon

February 23, 2023 EX-99.1

THIS PAGE INTENTIONALLY LEFT BLANK

Exhibit 99.1 TRANSOCEAN LTD. STATUTORY CONSOLIDATED FINANCIAL STATEMENTS For the years ended December 31, 2022, 2021 and 2020 THIS PAGE INTENTIONALLY LEFT BLANK Ernst & Young AG Maagplatz 1 P.O. Box 8005 Zurich Phone: +41 58 286 31 11 Fax: +41 58 286 30 04 www.ey.com/ch To the General Meeting of Zurich, February 22, 2023 Transocean Ltd., Steinhausen Report of the statutory auditor on the consolida

February 23, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark one) ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-383

February 23, 2023 EX-21

Filed herewith

Exhibit 21 SUBSIDIARIES OF TRANSOCEAN LTD. (as of December 31, 2022) Entity Jurisdiction 15375 Memorial Corporation Delaware Agon Shipping Inc. Marshall Islands Aguas Profundas, Limitada Angola Angola Deepwater Drilling Company (Offshore Services) Ltd Cayman Islands AngoSantaFe - Prestacao de Servicos Petroliferos, Limitada Angola Arcade Drilling AS Norway Asie Sonat Offshore Sdn. Bhd. Malaysia Bl

February 23, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): February 22, 2023 TRANSOCEAN LTD. (Exact name of registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of incorporation or organization

February 21, 2023 EX-99.1

TRANSOCEAN LTD. AND SUBSIDIARIES

EXHIBIT 99.1 TRANSOCEAN LTD. REPORTS FOURTH QUARTER AND FULL YEAR 2022 RESULTS ● Total contract drilling revenues were $606 million, compared to $691 million in the third quarter of 2022 (total adjusted contract drilling revenues of $625 million, compared to $730 million in the third quarter of 2022); ● Revenue efficiency(1) was 98.0%, compared to 95.0% in the prior quarter; ● Operating and mainte

February 21, 2023 8-K

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): February 21, 2023 TRANSOCEAN LTD.

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): February 21, 2023 TRANSOCEAN LTD. (Exact name of registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of incorporation or organization

February 15, 2023 8-K

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): February 15, 2023 (February 9, 20

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): February 15, 2023 (February 9, 2023) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commissio

February 14, 2023 EX-99.1

POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940

EX-99.1 2 tm235349-40ex1.htm EXHIBIT 1 Exhibit 1 POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940 I, David E. Shaw, hereby make, constitute, and appoint each of: Edward Fishman, Julius Gaudio, Martin Lebwohl, Maximilian Stone, David Sweet, Nathan Thomas, and Eric Wepsic, acting individually,

February 14, 2023 SC 13G/A

RIG / Transocean LTD / D. E. SHAW & CO, L.P. - SC 13G/A Passive Investment

SC 13G/A 1 tm235349-40sc13g.htm SC 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Amendment No. 1) Under the Securities Exchange Act of 1934 Transocean Ltd. (Name of Issuer) Shares, par value CHF 0.10 per share (Title of Class of Securities) H8817H100 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the following box to d

February 14, 2023 EX-99.2

JOINT FILING AGREEMENT

EX-99.2 3 tm235349-40ex2.htm EXHIBIT 2 Exhibit 2 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, each of the undersigned Reporting Persons hereby agrees to the joint filing, along with all other such Reporting Persons, on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the Shares,

February 9, 2023 SC 13G/A

RIG / Transocean LTD / PRIMECAP MANAGEMENT CO/CA/ - PRIMECAP MANAGEMENT CO/CA/ Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)* Transocean Ltd. (Name of Issuer) COM (Title of Class of Securities) H8817H100 (CUSIP Number) December 31, 2022 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is file

February 9, 2023 EX-99.1

Dayrate on

Updated: February 9, 2023 Revisions Noted in Bold Dynamically positioned "DP" « Dayrate on Dayrate on Yr.

February 9, 2023 8-K

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): February 9, 2023 TRANSOCEAN LTD.

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): February 9, 2023 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 i

February 9, 2023 SC 13G/A

RIG / Transocean LTD / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv02066-transoceanltd.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: Transocean Ltd. Title of Class of Securities: Common Stock CUSIP Number: H8817H100 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the

January 31, 2023 8-K

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): January 31, 2023 TRANSOCEAN LTD.

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): January 31, 2023 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 i

January 31, 2023 EX-99.1

Transocean Ltd. Announces $392 Million Contract Award for Ultra-Deepwater Drillship

Exhibit 99.1 Transocean Ltd. Announces $392 Million Contract Award for Ultra-Deepwater Drillship STEINHAUSEN, Switzerland—January 31, 2023–Transocean Ltd. (NYSE: RIG) announced today that the ultra-deepwater drillship, Dhirubhai Deepwater KG2, has been awarded a 910-day contract by a national oil company for work offshore Brazil. The estimated backlog of $392 million excludes a mobilization fee of

January 31, 2023 EX-4.1

Exhibit 4.1 to Transocean Ltd.’s Current Report on Form 8-K (Commission File No. 001-38373) filed on January 31, 2023

EX-4.1 2 rig-20230131xex4d1.htm EX-4.1 ‌ Exhibit 4.1 EXECUTION VERSION Transocean inc., as Issuer, EACH OF THE GUARANTORS PARTY HERETO and TRUIST BANK, as Trustee and as Collateral Agent INDENTURE Dated as of January 31, 2023 8.75% Senior Secured Notes due 2030 Table of Contents Page Article 1 Definitions and Incorporation by Reference SECTION 1.01. Definitions 1 SECTION 1.02. Other Definitions 24

January 31, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): January 31, 2023 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 i

January 30, 2023 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the guarantor of the entire class of the stated securities from listing and registration on the Exchange at the opening of business on February 10, 2023, pursuant to the provisions of Rule 12d2-2 (a).

January 17, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): January 17, 2023 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 i

January 17, 2023 EX-99.1

Transocean Ltd. Announces Proposed Private Offering of $1.175 Billion of Senior Secured Notes due 2030

EX-99.1 2 rig-20230117xex99d1.htm EX-99.1 Exhibit 99.1 Transocean Ltd. Announces Proposed Private Offering of $1.175 Billion of Senior Secured Notes due 2030 STEINHAUSEN, Switzerland – January 17, 2023 – Transocean Ltd. (NYSE: RIG) announced today that Transocean Inc., its wholly-owned subsidiary has commenced an offering of U.S. $1.175 billion aggregate principal amount of senior secured notes du

January 17, 2023 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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): January 17, 2023 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 i

January 17, 2023 EX-4.1

Exhibit 4.1 to Transocean Ltd.’s Current Report on Form 8-K (Commission File No. 001-38373) filed on January 17, 2023

EX-4.1 2 rig-20230117xex4d1.htm EX-4.1 Exhibit 4.1 Execution Version TRANSOCEAN TITAN FINANCING LIMITED, as Issuer, EACH OF THE GUARANTORS PARTY HERETO and TRUIST BANK, as Trustee and as Collateral Agent INDENTURE Dated as of January 17, 2023 8.375% Senior Secured Notes due 2028 Table of Contents Page Article 1 Definitions and Incorporation by Reference SECTION 1.01. Definitions. 1 SECTION 1.02. O

January 9, 2023 8-K

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): January 9, 2023 TRANSOCEAN LTD. (

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): January 9, 2023 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 in

January 4, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): January 4, 2023 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 in

January 4, 2023 EX-99.1

Transocean Ltd. Announces Contract Awards and Extensions Totaling $488 Million

EX-99.1 2 rig-20230104xex99d1.htm EX-99.1 Transocean Ltd. Announces Contract Awards and Extensions Totaling $488 Million STEINHAUSEN, Switzerland—January 4, 2023—Transocean Ltd. (NYSE: RIG) today announced contract awards or extensions for five of its drilling rigs. Together, the fixtures represent approximately $488 million of firm backlog. Deepwater Invictus, an ultra-deepwater drillship, was aw

December 19, 2022 SC 13D/A

RIG / Transocean LTD / Perestroika - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) (Amendment No. 7)* Under the Securities Exchange Act of 1934 Transocean Ltd. (Name of Issuer) Shares, par value CHF 0.10 per share (Title of Class of Securities) H8817H100 (CUSIP Number) c/o Daniel Ro-Trock Transocean Ltd. Turmstrasse 30 6312 Steinhausen Switzerland CH-6312 (Name, Address and Teleph

December 8, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): December 8, 2022 (December 7, 2022) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commission

December 8, 2022 EX-99.1

Transocean Ltd. Announces $1.04 Billion in Contract Awards for Two Ultra-Deepwater Drillships

Exhibit 99.1 ? Transocean Ltd. Announces $1.04 Billion in Contract Awards for Two Ultra-Deepwater Drillships ? STEINHAUSEN, Switzerland?December 7, 2022?Transocean Ltd. (NYSE: RIG) today announced awards for its ultra-deepwater drillships, Deepwater Corcovado and Deepwater Orion, for work offshore Brazil with a national oil company. Together the two contracts represent approximately $1.04 billion

November 25, 2022 EX-99.2

JOINT FILING AGREEMENT

Exhibit 2 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, each of the undersigned Reporting Persons hereby agrees to the joint filing, along with all other such Reporting Persons, on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the Shares, par value CHF 0.

November 25, 2022 EX-99.1

POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940

Exhibit 1 POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940 I, David E.

November 25, 2022 SC 13G

RIG / Transocean LTD / D. E. SHAW & CO, L.P. - SC 13G Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Transocean Ltd. (Name of Issuer) Shares, par value CHF 0.10 per share (Title of Class of Securities) H8817H100 (CUSIP Number) November 14, 2022 (Date of Event Which Requires Filing of this Statement) Check the following box to designate the rule pursuant to which the Schedule is filed:

November 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

November 2, 2022 8-K

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): November 2, 2022 TRANSOCEAN LTD.

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): November 2, 2022 TRANSOCEAN LTD. (Exact name of registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of incorporation or organization)

November 2, 2022 EX-99.1

TRANSOCEAN LTD. AND SUBSIDIARIES

EXHIBIT 99.1 ? TRANSOCEAN LTD. REPORTS THIRD QUARTER 2022 RESULTS ? ? Total contract drilling revenues were $691 million, compared to $692 million in the second quarter of 2022 (total adjusted contract drilling revenues of $730 million, compared to $722 million in the second quarter of 2022); ? Revenue efficiency(1) was 95.0%, compared to 97.8% in the prior quarter; ? Operating and maintenance exp

October 13, 2022 8-K

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): October 13, 2022 TRANSOCEAN LTD.

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): October 13, 2022 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 i

October 13, 2022 EX-99.1

Dayrate on

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Updated: October 13, 2022 ? ? ? ? ? ? ? ? ? ? ? ? ? Revisions Noted in Bold ? ? ? ? ? ? ? ? ? ? ? ? ? Dynamically positioned "DP" ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Dayrate on Dayrate on ? ? ? ? ? Yr.

September 30, 2022 EX-4.2

Exhibit 4.2 to Transocean Ltd.’s Current Report on Form 8-K (Commission File No. 001-3873) filed on September 30, 2022

? EXHIBIT 4.2 Execution Version ? Dated September 30, 2022 Warrant Agreement among TRANSOCEAN INC. as Company TRANSOCEAN LTD. as Parent COMPUTERSHARE INC. COMPUTERSHARE TRUST COMPANY, N.A. as Warrant Agent ? ? ? ? ? ? ? ? ? ? ? Table of Contents Page Article I DEFINITIONS?1 Section 1.01 Definitions?1 Section 1.02 Rules of Construction?8 Article II APPOINTMENT OF WARRANT AGENT?8 Section 2.01 Appoin

September 30, 2022 EX-4.1

Exhibit 4.1 to Transocean Ltd.’s Current Report on Form 8-K (Commission File No. 001-38373) filed on September 30, 2022

? EXHIBIT 4.1 Execution Version ? ? TRANSOCEAN INC., as Issuer, ? TRANSOCEAN LTD., as a Guarantor, ? THE SUBSIDIARY GUARANTORS FROM TIME TO TIME PARTY HERETO, as Subsidiary Guarantors, ? AND TRUIST BANK, as Trustee ? INDENTURE Dated as of September 30, 2022 ? ? ? 4.625% Senior Guaranteed Exchangeable Bonds due 2029 ? ? ? ? ? ? ? ? ? ? ? ? ? ? TABLE OF CONTENTS Page Article 1 Definitions and Incorp

September 30, 2022 8-K

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

? 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): September 30, 2022 ? TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) ? Switzerland 001-38373 98-0599916 (State or other jurisdiction of ? (Commission ? (I

September 13, 2022 EX-3.1

Exhibit 3.1 to Transocean Ltd.’s Current Report on Form 8-K (Commission File No. 001-38373) filed on September 13, 2022

? Exhibit 3.1 ? ? Statuten von Transocean Ltd. vom 8. September 2022 ? Articles of Association of Transocean Ltd. as of September 8, 2022 ? ? - 2 - ? ? ? ? ? ? ? ? Abschnitt 1: Firma, Sitz, Zweck und Dauer der Gesellschaft ? ? Section 1: Name, Place of Incorporation, Purpose and Duration of the Company ? ? Artikel 1 ? ? Article 1 Firma, Sitz ? Unter der Firma ? Transocean Ltd. (die Gesellschaft) ?

September 13, 2022 EX-99.1

EXHIBIT 99.1

EXHIBIT 99.1 ? Transocean Ltd. Announces Private Exchange and Purchase of Certain Existing Securities and Issuance of New Exchangeable Bonds and Warrants ? STEINHAUSEN, Switzerland?September 13, 2022?Transocean Ltd. (NYSE: RIG) (?Transocean?) announced today that it has executed privately negotiated exchange and purchase agreements relating to certain of the 0.50% Exchangeable Senior Bonds due 202

September 13, 2022 8-K

Regulation FD Disclosure, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Unregistered Sales of Equity Securities, Financial Statements and Exhibits

? 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): September 13, 2022 (September 8, 2022) ? TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) ? Switzerland 001-38373 98-0599916 (State or other jurisdiction o

September 7, 2022 EX-99.1

EXHIBIT 99.1

EXHIBIT 99.1 ? Transocean Ltd. Announces $181 Million in Contracts for Ultra-Deepwater Drillship Deepwater Asgard ? STEINHAUSEN, Switzerland?September 6, 2022?Transocean Ltd. (NYSE: RIG) announced today that the ultra-deepwater drillship, Deepwater Asgard, received two contract awards in the U.S. Gulf of Mexico for a total of approximately 14 months of work, adding $181 million in firm backlog. ?

September 7, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

? 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): September 7, 2022 (September 6, 2022) ? TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) ? Switzerland 001-38373 98-0599916 (State or other jurisdiction of

August 5, 2022 424B5

Transocean Ltd. Up to $435,000,000 Aggregate Offering Price of Shares

Prospectus Supplement (To Prospectus dated June 14, 2021) Transocean Ltd. Up to $435,000,000 Aggregate Offering Price of Shares We have entered into an equity distribution agreement with Morgan Stanley & Co. LLC, as sales agent, relating to the offer and sale from time to time of our shares, par value CHF 0.10 per share (or such other par value, as our shares may have from time to time) (?shares?)

August 5, 2022 EX-1.1

Equity Distribution Agreement, dated as of August 5, 2022, by and between Transocean Ltd. and Morgan Stanley & Co. LLC

EX-1.1 2 rig-20220805xex1d1.htm EX-1.1 Execution Version TRANSOCEAN LTD. SHARES, PAR VALUE CHF 0.10 PER SHARE EQUITY DISTRIBUTION AGREEMENT August 5, 2022 ‌ August 5, 2022 To Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 Ladies and Gentlemen: Transocean Ltd., a company organized under the laws of Switzerland (the “Company”), proposes to sell through Morgan Stanley & Co. LLC, as s

August 5, 2022 EX-FILING FEES

Calculation of Filing Fee Table (Form Type) Transocean Ltd. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

EX-FILING FEES 2 tmb-20220805xexfilingfees.htm EX-FILING FEES Exhibit 107 Calculation of Filing Fee Table 424(b)(5) (Form Type) Transocean Ltd. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggreg

August 5, 2022 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

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): August 5, 2022 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 inc

August 3, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): August 3, 2022 (August 1, 2022) TRANSOCEAN LTD. (Exact name of Registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commission (I.

August 3, 2022 EX-10.1

Filed herewith

‌Exhibit 10.1 June 14, 2022 Mr. Mark Mey Executive Vice President and Chief Financial Officer 1414 Enclave Parkway Houston, Texas 77077 Re: Special Performance Bonus Dear Mr. Mey: We consider your service and dedication to the Company essential to the completion of the performance objectives set forth on Exhibit A (the “Performance Goal”), and in order to incentivize you to achieve the Performance

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