Welcome to our dedicated page for Transocean SEC filings (Ticker: RIG), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
This Transocean Ltd. (NYSE: RIG) filings page brings together the company’s reports to the U.S. Securities and Exchange Commission, including Form 8-K current reports and references to its annual Form 10-K and other periodic filings. Transocean is a Swiss-incorporated offshore contract driller that focuses on ultra-deepwater and harsh environment services for oil and gas wells, and its SEC documents provide detailed insight into both operations and capital structure.
Recent Form 8-K filings describe material events such as contract awards and option exercises for rigs like Deepwater Atlas, Deepwater Mykonos, Deepwater Skyros, Transocean Enabler and Transocean Barents. These filings quantify the approximate additions to firm contract backlog and outline expected campaign durations and locations, giving investors a clearer view of future contracted activity.
Other 8-Ks focus on financing and capital markets transactions, including a private offering of Senior Priority Guaranteed Notes due 2032, cash tender offers for senior notes due 2041 and 2028, and an underwritten public offering of Transocean shares. These documents summarize key terms of new debt, tender offer conditions, early tender results and intended use of proceeds for debt repayment or redemption.
Transocean also uses Form 8-K to furnish quarterly financial results and to reference its earnings press releases and interactive data files formatted in Inline XBRL. The company’s disclosures note that additional risks and details are discussed in its Annual Report on Form 10-K and other SEC filings available on the SEC’s website.
On Stock Titan, AI-powered tools can help interpret these filings by highlighting contract-related disclosures, changes in backlog, new obligations under indentures, and the financial impact of tender offers and note issuances. Real-time updates from EDGAR, combined with AI summaries, allow users to quickly understand the significance of each new RIG filing without reading every page in full.
Transocean Ltd. (RIG) disclosed an insider transaction on a Form 4. The company’s EVP & Chief Legal Officer sold 97,090 shares on 10/24/2025 at $4 per share pursuant to a Rule 10b5-1 trading plan adopted on March 11, 2025. After the sale, the reporting person directly owned 1,161,409 shares.
Transocean Ltd. (RIG) reported an insider transaction on Form 4. The reporting person, who serves as Director and President and CEO, sold 40,942 shares at $4 on 10/24/2025.
Following the sale, the reporting person beneficially owned 1,370,152 shares. The sales were made pursuant to a Rule 10b5-1 trading plan adopted on March 28, 2025.
Transocean Ltd. (RIG) disclosed a Form 144 notice indicating a planned sale of 40,942 shares of common stock through Morgan Stanley Smith Barney LLC, reflecting an aggregate market value of $159,264.38. The shares trade on the NYSE, with an approximate sale date of 10/24/2025.
The shares to be sold were acquired as Restricted Stock Units from the issuer on 03/01/2024 in the same amount. Shares outstanding were 943,124,986; this is a baseline figure, not the amount being sold.
RIG: A shareholder filed a Form 144 notice to sell up to 97,090 shares of common stock. The filing lists an aggregate market value of $377,680.10 for the proposed sale.
The shares are slated for execution through Morgan Stanley Smith Barney LLC, with an approximate sale date of 10/24/2025 on the NYSE. The securities were originally acquired as Restricted Stock Units on 03/01/2021 in the amount of 97,090, with the same date shown for payment.
Shares outstanding were 943,124,986; this is a baseline figure, not the amount being sold.
Transocean Ltd. closed a private Offering of $500 million in 7.875% Senior Priority Guaranteed Notes due 2032 through Transocean International Limited. The Notes are fully and unconditionally guaranteed on a senior unsecured basis by specified subsidiaries, pay interest on April 15 and October 15 each year beginning April 15, 2026, and were offered to qualified institutional buyers under Rule 144A and outside the U.S. under Regulation S. The Indenture includes covenants limiting certain additional indebtedness, liens on drilling rigs or drillships without equal and ratable security, sale-leasebacks of these assets, and certain consolidations or amalgamations, with customary events of default and potential acceleration.
Transocean also announced early results for its cash tender offer, increasing the combined aggregate purchase price cap from $50 million to $100 million. As of the Early Tender Date, $88,998,000 of 2041 Notes (about 50.21% outstanding) were validly tendered and accepted, and $120,628,000 of 2028 Notes (about 46.18% outstanding) were validly tendered, to be purchased on a pro rata basis with a proration factor of approximately 13.17%.
Transocean Ltd. closed a private Offering of $500 million in 7.875% Senior Priority Guaranteed Notes due 2032 through Transocean International Limited. The Notes are fully and unconditionally guaranteed on a senior unsecured basis by specified subsidiaries, pay interest on April 15 and October 15 each year beginning April 15, 2026, and were offered to qualified institutional buyers under Rule 144A and outside the U.S. under Regulation S. The Indenture includes covenants limiting certain additional indebtedness, liens on drilling rigs or drillships without equal and ratable security, sale-leasebacks of these assets, and certain consolidations or amalgamations, with customary events of default and potential acceleration.
Transocean also announced early results for its cash tender offer, increasing the combined aggregate purchase price cap from $50 million to $100 million. As of the Early Tender Date, $88,998,000 of 2041 Notes (about 50.21% outstanding) were validly tendered and accepted, and $120,628,000 of 2028 Notes (about 46.18% outstanding) were validly tendered, to be purchased on a pro rata basis with a proration factor of approximately 13.17%.
Transocean Ltd. furnished a “Transocean Fleet Status Report” under Item 7.01 Regulation FD Disclosure, providing drilling rig status and contract information.
The report is dated October 15, 2025 and is attached as Exhibit 99.1. The company posts Fleet Status Reports quarterly on its investor website and offers free email alerts for press releases, financial updates, and links to the report.
Transocean Ltd. furnished a “Transocean Fleet Status Report” under Item 7.01 Regulation FD Disclosure, providing drilling rig status and contract information.
The report is dated October 15, 2025 and is attached as Exhibit 99.1. The company posts Fleet Status Reports quarterly on its investor website and offers free email alerts for press releases, financial updates, and links to the report.
Transocean Ltd. announced new contract fixtures for two ultra-deepwater drillships, adding approximately $243 million in firm contract backlog. In the U.S. Gulf of America, bp exercised a 365-day option for the Deepwater Atlas in direct continuation of its existing contract, expected to contribute about $232 million in backlog. In Brazil, Petrobras exercised a 30-day option for the Deepwater Mykonos, expected to add roughly $11 million in backlog. A related press release with further details is attached as an exhibit.
Transocean Ltd. (RIG) Form 4 summary: The reporting person, Perestroika (through Perestroika AS), acquired 4,000,000 registered shares on 09/26/2025 at $3.05 per share in a registered public offering. After the transaction, Perestroika beneficially owned 95,074,894 shares indirectly via Perestroika (Cyprus) Ltd. The filing identifies the reporting entity as a director and a 10% owner. The disclosure states Perestroika (Cyprus) Ltd. is a wholly owned subsidiary of Perestroika AS and that Mr. Frederik Mohn is the sole director and owner of Perestroika AS and the indirect beneficial owner of the securities. The form is signed by /s/ Daniel Ro-Trock by Power of Attorney dated 09/30/2025. The filing notes Perestroika AS's prior right to designate a board member has terminated.
Transocean Ltd. (RIG) Form 4 summary: The reporting person, Perestroika (through Perestroika AS), acquired 4,000,000 registered shares on 09/26/2025 at $3.05 per share in a registered public offering. After the transaction, Perestroika beneficially owned 95,074,894 shares indirectly via Perestroika (Cyprus) Ltd. The filing identifies the reporting entity as a director and a 10% owner. The disclosure states Perestroika (Cyprus) Ltd. is a wholly owned subsidiary of Perestroika AS and that Mr. Frederik Mohn is the sole director and owner of Perestroika AS and the indirect beneficial owner of the securities. The form is signed by /s/ Daniel Ro-Trock by Power of Attorney dated 09/30/2025. The filing notes Perestroika AS's prior right to designate a board member has terminated.
Transocean Ltd. (RIG) Form 4 summary: The reporting person, Perestroika (through Perestroika AS), acquired 4,000,000 registered shares on 09/26/2025 at $3.05 per share in a registered public offering. After the transaction, Perestroika beneficially owned 95,074,894 shares indirectly via Perestroika (Cyprus) Ltd. The filing identifies the reporting entity as a director and a 10% owner. The disclosure states Perestroika (Cyprus) Ltd. is a wholly owned subsidiary of Perestroika AS and that Mr. Frederik Mohn is the sole director and owner of Perestroika AS and the indirect beneficial owner of the securities. The form is signed by /s/ Daniel Ro-Trock by Power of Attorney dated 09/30/2025. The filing notes Perestroika AS's prior right to designate a board member has terminated.
Amendment No. 8 to Schedule 13D reports that Frederik W. Mohn, Perestroika AS and Perestroika (Cyprus) Ltd. (together, the Reporting Persons) beneficially own 95,074,894 to 95,418,301 shares of Transocean Ltd. (Shares), representing approximately 10.1% of the outstanding class based on 943,124,986 shares outstanding as of July 29, 2025. The filing describes a change in the form of ownership when Perestroika Sub exchanged $213,367,000 principal amount of 2.5% Senior Guaranteed Exchangeable Bonds into Shares on April 21, 2023, and discloses multiple cash purchases by Perestroika Sub between February 2024 and September 2025, including 4,000,000 shares bought at $3.05 per share in the Issuer’s registered offering on September 26, 2025. Mr. Mohn directly holds 22,148 shares plus vested RSU-related rights and has sole voting/dispositive power over 343,407 shares and shared voting/dispositive power over 95,074,894 shares. The filing replaces prior Item 1 text and states all other Items remain unchanged from the earlier Schedule 13D filings.
Amendment No. 8 to Schedule 13D reports that Frederik W. Mohn, Perestroika AS and Perestroika (Cyprus) Ltd. (together, the Reporting Persons) beneficially own 95,074,894 to 95,418,301 shares of Transocean Ltd. (Shares), representing approximately 10.1% of the outstanding class based on 943,124,986 shares outstanding as of July 29, 2025. The filing describes a change in the form of ownership when Perestroika Sub exchanged $213,367,000 principal amount of 2.5% Senior Guaranteed Exchangeable Bonds into Shares on April 21, 2023, and discloses multiple cash purchases by Perestroika Sub between February 2024 and September 2025, including 4,000,000 shares bought at $3.05 per share in the Issuer’s registered offering on September 26, 2025. Mr. Mohn directly holds 22,148 shares plus vested RSU-related rights and has sole voting/dispositive power over 343,407 shares and shared voting/dispositive power over 95,074,894 shares. The filing replaces prior Item 1 text and states all other Items remain unchanged from the earlier Schedule 13D filings.
Amendment No. 8 to Schedule 13D reports that Frederik W. Mohn, Perestroika AS and Perestroika (Cyprus) Ltd. (together, the Reporting Persons) beneficially own 95,074,894 to 95,418,301 shares of Transocean Ltd. (Shares), representing approximately 10.1% of the outstanding class based on 943,124,986 shares outstanding as of July 29, 2025. The filing describes a change in the form of ownership when Perestroika Sub exchanged $213,367,000 principal amount of 2.5% Senior Guaranteed Exchangeable Bonds into Shares on April 21, 2023, and discloses multiple cash purchases by Perestroika Sub between February 2024 and September 2025, including 4,000,000 shares bought at $3.05 per share in the Issuer’s registered offering on September 26, 2025. Mr. Mohn directly holds 22,148 shares plus vested RSU-related rights and has sole voting/dispositive power over 343,407 shares and shared voting/dispositive power over 95,074,894 shares. The filing replaces prior Item 1 text and states all other Items remain unchanged from the earlier Schedule 13D filings.
Transocean Ltd. is starting a new debt financing. The company announced that its subsidiary, Transocean International Limited, has begun an offering of $500 million aggregate principal amount of Senior Priority Guaranteed Notes due 2032.
The notes are being sold in a private placement to institutional investors, including qualified institutional buyers in the United States and certain investors outside the U.S. under Regulation S. This transaction is designed to raise long-term capital through bonds rather than issuing new shares.
Transocean Ltd. is starting a new debt financing. The company announced that its subsidiary, Transocean International Limited, has begun an offering of $500 million aggregate principal amount of Senior Priority Guaranteed Notes due 2032.
The notes are being sold in a private placement to institutional investors, including qualified institutional buyers in the United States and certain investors outside the U.S. under Regulation S. This transaction is designed to raise long-term capital through bonds rather than issuing new shares.
Transocean Ltd. is starting a new debt financing. The company announced that its subsidiary, Transocean International Limited, has begun an offering of $500 million aggregate principal amount of Senior Priority Guaranteed Notes due 2032.
The notes are being sold in a private placement to institutional investors, including qualified institutional buyers in the United States and certain investors outside the U.S. under Regulation S. This transaction is designed to raise long-term capital through bonds rather than issuing new shares.