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Transocean Ltd SEC Filings
What Transocean Ltd has told the SEC happened, by the 8-K items and forms it filed under: when it reported results, who joined or left, what it bought or sold, and whether its auditor or its accounts ever changed.
RIG overview →Filings on file
168
since Oct 20, 2016
Warning signs
15
latest Aug 27, 2025
Last results
Aug 5, 2026
8-K item 2.02
Industry
Drilling Oil & Gas Wells
SIC 1381
Newest first
Each label is a form type or an 8-K item as filed; each row links to the filing.
| Filed | What it reports | Document |
|---|---|---|
| Aug 27, 2025 | Material impairment 8-K | Read ↗ |
| Jun 3, 2025 | Material impairmentExecutive or director changeUnregistered share saleShareholder vote 8-K | Read ↗ |
| Sep 3, 2024 | Material impairment 8-K | Read ↗ |
| Jun 24, 2024 | Material impairment 8-K | Read ↗ |
| Jun 28, 2023 | Material impairment 8-K | Read ↗ |
| Feb 15, 2023 | Material impairment 8-K | Read ↗ |
| Oct 19, 2020 | Delisting notice or listing transfer 8-K | Read ↗ |
| Oct 7, 2020 | Debt accelerated 8-K | Read ↗ |
| Sep 8, 2020 | Debt accelerated 8-K | Read ↗ |
| May 11, 2020 | Material impairmentExecutive or director changeUnregistered share saleShareholder vote 8-K | Read ↗ |
| Sep 3, 2019 | Material impairment 8-K | Read ↗ |
| Jun 14, 2018 | Material impairment 8-K | Read ↗ |
| Sep 27, 2017 | Material impairment 8-K | Read ↗ |
| May 30, 2017 | Material impairment 8-K | Read ↗ |
| Mar 1, 2017 | Late filing notice NT 10-K | Read ↗ |
Source: Transocean Ltd's EDGAR filing history, the last ten years. The labels are the form types and 8-K item numbers the company filed under, not a reading of what it wrote — an item 5.02 can be a chief executive fired or a director retiring on schedule — so each row links to the filing.