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Transocean (RIG) 10K Form and Latest SEC Filings 2026

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Latest Transocean SEC Filings & Recent Activity

Transocean (NYSE:RIG) has submitted 626+ documents to the U.S. Securities and Exchange Commission (SEC) since 2017. For investors, these filings are the primary source of verified financial data — covering everything from annual revenue and debt levels in the 10-K, to material business events in 8-K current reports, to insider buying and selling activity in Form 4 disclosures. Key figures from these filings, including revenue, earnings, and cash flow, are summarized in Transocean's financial statements. The most recent filing was a Form 8-K submitted on August 20, 2026.

Form 4
Transocean Ltd. Reports Ownership Change on Jul. 7, 2026

Form 4 filings disclose changes in stock ownership by company insiders, including purchases, sales, grants, and option exercises.

View insider ownership

8-K
Transocean Files Current Report on Aug. 20, 2026

An 8-K is filed when a material corporate event occurs, such as an acquisition, leadership change, or financial update.

View filing

10-K
Transocean Files Annual Report on Feb. 23, 2026

The 10-K contains Transocean's audited financial statements, revenue, earnings, and risk factors for the prior fiscal year.

View earnings history

Transocean SEC Filing History

Browse Transocean's complete SEC filing history using the filters below. Filter by form type - 10-K, 10-Q, 8-K, Form 4, and more - or set a custom date range to find a filing.

DateFilerForm TypeView
08/20/2026 5:21 AM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
08/05/2026 4:09 PM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/07/2026 3:22 PM
DEATON CHAD C (1239236) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
07/01/2026 8:01 AM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/01/2026 8:02 AM
Transocean (1451505) Filer
Form DEFA14A
06/16/2026 4:06 PM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/27/2026 5:39 PM
MERKSAMER SAMUEL J. (1501581) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/27/2026 5:40 PM
Barker Glyn Anthony (1548502) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/27/2026 5:41 PM
Curado Frederico F. (1577451) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/27/2026 5:41 PM
DELL'OSSO DOMENIC J JR (1504988) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/27/2026 5:42 PM
INTRIERI VINCENT J (1350114) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/27/2026 5:42 PM
CHANG VANESSA C L (1226487) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/27/2026 5:44 PM
Mohn Frederik Wilhelm (1729638) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/27/2026 5:48 PM
DEATON CHAD C (1239236) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/27/2026 5:50 PM
Lacey William F. (1857038) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/26/2026 4:10 PM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/22/2026 3:19 PM
Long Brady K (1502666) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/21/2026 3:19 PM
Long Brady K (1502666) Reporting
Transocean (1451505) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/19/2026 3:44 PM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/19/2026 3:46 PM
Transocean (1451505) Filer
Form DEFA14A
05/19/2026 3:05 PM
Transocean (1451505) Filer
Form PREM14A
05/05/2026 3:16 PM
Adamson Keelan (1750415) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/05/2026 6:01 AM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/05/2026 6:02 AM
Transocean (1451505) Filer
Form DEFA14A
05/04/2026 4:28 PM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/16/2026 5:25 AM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/14/2026 5:08 AM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/02/2026 5:19 AM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/31/2026 3:40 PM
Transocean (1451505) Filer
Form ARS
03/31/2026 3:31 PM
Transocean (1451505) Filer
Form DEF 14A
03/31/2026 3:35 PM
Transocean (1451505) Filer
Form DEFA14A
03/27/2026 12:36 PM
Transocean (1451505) Subject
VANGUARD GROUP INC (102909) Filed by
Form SCHEDULE 13G/A
03/20/2026 3:15 PM
Transocean (1451505) Filer
Form PRE 14A
03/05/2026 6:48 PM
Mackenzie Roderick James (2045694) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/04/2026 3:23 PM
Mackenzie Roderick James (2045694) Reporting
Transocean (1451505) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/03/2026 8:32 PM
Pack Jason (2030852) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/03/2026 8:34 PM
Adamson Keelan (1750415) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/03/2026 8:35 PM
Transocean (1451505) Issuer
Vayda Robert Thaddeus (2022236) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/03/2026 8:27 PM
Mackenzie Roderick James (2045694) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/03/2026 8:28 PM
THIGPEN JEREMY D (1240666) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/03/2026 8:30 PM
Long Brady K (1502666) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
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02/23/2026 4:08 PM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/23/2026 3:52 PM
Transocean (1451505) Filer
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
02/13/2026 8:41 PM
Transocean (1451505) Filer
Form DEFA14A
02/13/2026 8:59 PM
Transocean (1451505) Filed by
Valaris Ltd (314808) Subject
Form SCHEDULE 13D
02/11/2026 8:25 PM
Mohn Frederik Wilhelm (1729638) Filed by
Transocean (1451505) Subject
Form SCHEDULE 13D/A
02/11/2026 5:21 AM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/10/2026 7:37 PM
Transocean (1451505) Filer
Form DEFA14A
02/10/2026 7:58 AM
Transocean (1451505) Filer
Form DEFA14A
02/10/2026 7:57 AM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/09/2026 5:04 PM
Long Brady K (1502666) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/09/2026 5:08 PM
THIGPEN JEREMY D (1240666) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/09/2026 5:13 PM
Transocean (1451505) Issuer
Vayda Robert Thaddeus (2022236) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
02/09/2026 4:49 PM
Adamson Keelan (1750415) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/09/2026 4:55 PM
Pack Jason (2030852) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/09/2026 4:59 PM
Mackenzie Roderick James (2045694) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/09/2026 7:15 AM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/09/2026 7:19 AM
Transocean (1451505) Filer
Form DEFA14A
01/28/2026 3:38 PM
Adamson Keelan (1750415) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/26/2026 3:29 PM
Long Brady K (1502666) Reporting
Transocean (1451505) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
01/05/2026 5:59 AM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
12/08/2025 4:41 PM
Adamson Keelan (1750415) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
12/08/2025 4:26 PM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
12/04/2025 4:17 PM
Nauticus Robotics, Inc. (1849820) Issuer
Nauticus Robotics, Inc. (1849820) Issuer
Nauticus Robotics, Inc. (1849820) Issuer
Transocean (1451505) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
12/04/2025 4:19 PM
Nauticus Robotics, Inc. (1849820) Subject
Nauticus Robotics, Inc. (1849820) Subject
Nauticus Robotics, Inc. (1849820) Subject
Transocean (1451505) Filed by
Form SCHEDULE 13D/A
12/04/2025 3:42 PM
Adamson Keelan (1750415) Reporting
Transocean (1451505) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
12/03/2025 3:24 PM
Mackenzie Roderick James (2045694) Reporting
Transocean (1451505) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
12/01/2025 3:44 PM
THIGPEN JEREMY D (1240666) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
11/26/2025 3:14 PM
THIGPEN JEREMY D (1240666) Reporting
Transocean (1451505) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/25/2025 4:29 PM
Mohn Frederik Wilhelm (1729638) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
11/25/2025 4:31 PM
Perestroika (1729635) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
11/25/2025 4:32 PM
Perestroika (0) Cyprus
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
11/18/2025 6:13 AM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
10/31/2025 5:34 PM
Nauticus Robotics, Inc. (1849820) Issuer
Nauticus Robotics, Inc. (1849820) Issuer
Nauticus Robotics, Inc. (1849820) Issuer
Transocean (1451505) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
10/29/2025 4:11 PM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
10/28/2025 3:15 PM
Adamson Keelan (1750415) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
10/28/2025 3:15 PM
Long Brady K (1502666) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
10/24/2025 3:28 PM
Long Brady K (1502666) Reporting
Transocean (1451505) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
10/24/2025 3:28 PM
Adamson Keelan (1750415) Reporting
Transocean (1451505) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
10/15/2025 3:48 PM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
10/15/2025 3:16 PM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
10/01/2025 3:38 PM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/30/2025 8:38 PM
Mohn Frederik Wilhelm (1729638) Filed by
Transocean (1451505) Subject
Form SCHEDULE 13D/A
09/30/2025 8:41 PM
Mohn Frederik Wilhelm (1729638) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
09/30/2025 8:42 PM
Perestroika (1729635) Reporting
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
09/30/2025 8:44 PM
Perestroika (0) Cyprus
Transocean (1451505) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
09/30/2025 7:53 AM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/25/2025 8:37 PM
Transocean (1451505) Filer
Form 424B5
09/25/2025 8:45 PM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/24/2025 8:39 PM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/24/2025 3:04 PM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
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09/24/2025 3:06 PM
Transocean (1451505) Filer
Form 424B5
08/27/2025 3:16 PM
Transocean (1451505) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
(Data available from 1/1/2016 forward)

Transocean SEC Filings - Frequently Asked Questions

Transocean (RIG) has submitted 626+ filings to the SEC since 2017. You can browse the complete history or filter by form type using the tools above.

Transocean's fiscal year ends on December 31. The company typically files its 10-K annual report by the end of February, covering the prior fiscal year's financial results. Key financial data from these reports is available on Transocean's financial statements page.

The most recent filing was a Form 8-K submitted on August 20, 2026. This was a current report on a material business event.

SEC Filing Types: 10-K, 10-Q, 8-K and More

SEC filings are legally required disclosures that public companies submit to the U.S. Securities and Exchange Commission. Unlike press releases or earnings call transcripts, these documents are filed under legal obligation — meaning the financial data they contain is audited, standardized, and subject to penalties if materially false. For investors, that makes SEC filings the most reliable primary source available for evaluating a company's true financial position.

Yes. All SEC filings are publicly available through the SEC's EDGAR database and on financial research platforms like MarketBeat. Companies are required by law to make these disclosures accessible to all investors — meaning retail investors have access to the same source documents as institutional analysts.

A 10-K is an annual report containing audited financial statements and a full review of the company's business — it is the most comprehensive filing a company makes each year. A 10-Q is a shorter, unaudited quarterly update filed three times per year between annual reports. Investors typically use the 10-K for deep fundamental analysis and the 10-Q to track whether the company is on pace with its guidance mid-year.

The most important filing for fundamental investors. Filed once per year, the 10-K contains audited financial statements, revenue and earnings trends, debt obligations, risk factors, and management's own assessment of the business. Reading the risk factors section and comparing year-over-year financials can reveal issues that don't show up in analyst summaries.

An unaudited financial update filed three times per year (the 10-K covers Q4). Investors use 10-Qs to track whether guidance is on pace, monitor changes in cash flow or inventory, and catch any mid-year shifts in business conditions before they become headline news.

Filed within four business days of a material event — earnings releases, merger announcements, executive departures, or major asset sales. Because 8-Ks are filed before media coverage catches up, they are often the fastest way to get unfiltered information directly from the company on market-moving events.

Filed within two business days whenever an executive or director buys or sells company stock. Insider purchases — especially large or clustered buys — are often interpreted as a signal of management confidence. Insider selling is more ambiguous but worth monitoring for patterns, particularly around lock-up expirations or ahead of major announcements.


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This page (NYSE:RIG) was last updated on 8/20/2026 by MarketBeat.com Staff.
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