Institutional Ownership
Transocean Ltd
CUSIP H8817H100REGISTERED SHSRIGQ1 2026
13D / 13G Filings
24
Schedule 13D/13G on record
Beneficial Filers
8
Distinct reporting persons
Largest Stake
12.6%
Max % of class reported
Institutional Holders
529
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
24 filings · latest Feb 11, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 11, 2026 | Frederik W. Mohn | 13D/A | 8.8% | — | SEC |
| 2 | Sep 30, 2025 | Frederik W. Mohn | 13D/A | 10.1% | — | SEC |
| 3 | Aug 14, 2025 | Primecap Management Co/Ca/ | 13G/A | 1.5% | 13.13M | SEC |
| 4 | Apr 23, 2025 | Blackrock, Inc. | 13G/A | 6.4% | 56.12M | SEC |
| 5 | Feb 13, 2025 | Capital World Investors | 13G/A | 4.6% | 40.22M | SEC |
| 6 | Nov 13, 2024 | Capital World Investors | 13G | 5.5% | 48.26M | SEC |
| 7 | Oct 15, 2024 | Hayfin Special Opportunities Fund II LP | 13G/A | 4.8% | 41.54M | SEC |
| 8 | Jul 9, 2024 | Hayfin Special Opportunities Fund II LP | 13G | 5.9% | 55.51M | SEC |
| 9 | Feb 13, 2024 | Vanguard Group Inc | 13G/A | 8.5% | 68.55M | SEC |
| 10 | Feb 12, 2024 | Primecap Management Co/Ca/ | 13G/A | 6.3% | 50.70M | SEC |
14 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Transocean Ltd.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 88.37M | $585.90M |
| 2 | Dimensional Fund Advisors LP | 48.82M | $323.68M |
| 3 | Two Sigma Investments, LP | 46.46M | $308.05M |
| 4 | D. E. Shaw & Co., Inc. | 39.26M | $260.31M |
| 5 | Slate Path Capital LP | 30.06M | $199.31M |
| 6 | Capital World Investors | 29.58M | $196.09M |
| 7 | State Street Corp | 24.98M | $165.63M |
| 8 | Pilgrim Global Advisors LLC | 23.91M | $158.54M |
| 9 | Geode Capital Management, LLC | 23.47M | $155.65M |
| 10 | American Century Companies Inc | 22.76M | $150.89M |