RIG Transocean Ltd.
Transocean Ltd. (RIG) Institutional Ownership
What the institutions did with RIG last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 91.9M | 9.1% |
| DIMENSIONAL FUND ADVISORS LP | 51.0M | 5.1% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 49.3M | 4.9% |
| TWO SIGMA INVESTMENTS, LP | 46.2M | 4.6% |
| VANGUARD CAPITAL MANAGEMENT LLC | 45.2M | 4.5% |
| D. E. Shaw & Co., Inc. | 41.8M | 4.2% |
| Slate Path Capital LP | 37.3M | 3.7% |
| Capital World Investors | 31.0M | 3.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 28.6M | 2.8% |
| STATE STREET CORP | 27.1M | 2.7% |
| MORGAN STANLEY | 26.7M | 2.7% |
| UBS Group AG | 26.4M | 2.6% |
| AMERICAN CENTURY COMPANIES INC | 22.9M | 2.3% |
| Dalal Street, LLC | 20.4M | 2.0% |
| VAN ECK ASSOCIATES CORP | 19.8M | 2.0% |
| PILGRIM GLOBAL ADVISORS LLC | 17.4M | 1.7% |
| GOLDMAN SACHS GROUP INC | 16.8M | 1.7% |
| Elliott Investment Management L.P. | 15.6M | 1.6% |
| Assenagon Asset Management S.A. | 15.3M | 1.5% |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | 14.8M | 1.5% |
| RENAISSANCE TECHNOLOGIES LLC | 14.5M | 1.4% |
| Point72 Asset Management, L.P. | 14.2M | 1.4% |
| GENDELL JEFFREY L | 13.9M | 1.4% |
| KEYBANK NATIONAL ASSOCIATION/OH | 13.0M | 1.3% |
| FIL Ltd | 11.6M | 1.2% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| UBS Group AG | Increased | 6.1M | 26.4M | +20.3M |
| Assenagon Asset Management S.A. | New | 0 | 15.3M | +15.3M |
| MARSHALL WACE, LLP | Reduced | 16.0M | 1.1M | -15.0M |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 3.1M | 14.5M | +11.4M |
| Castle Hook Partners LP | New | 0 | 10.5M | +10.5M |
| MACKENZIE FINANCIAL CORP | New | 0 | 9.7M | +9.7M |
| Point72 Asset Management, L.P. | Increased | 5.4M | 14.2M | +8.8M |
| HRT FINANCIAL LP | Increased | 1.4M | 9.5M | +8.1M |
| Bridgewater Associates, LP | Increased | 418.4K | 8.0M | +7.5M |
| Driehaus Capital Management LLC | Sold Out | 7.2M | 0 | -7.2M |
| Slate Path Capital LP | Increased | 30.1M | 37.3M | +7.2M |
| PILGRIM GLOBAL ADVISORS LLC | Reduced | 23.9M | 17.4M | -6.5M |
| Caledonia (Private) Investments Pty Ltd | New | 0 | 5.6M | +5.6M |
| TUDOR INVESTMENT CORP ET AL | Sold Out | 5.3M | 0 | -5.3M |
| Canoe Financial LP | Increased | 3.6M | 8.7M | +5.1M |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 23.5M | 28.6M | +5.1M |
| MORGAN STANLEY | Increased | 21.7M | 26.7M | +5.0M |
| Electron Capital Partners, LLC | New | 0 | 4.7M | +4.7M |
| Empyrean Capital Partners, LP | Sold Out | 4.6M | 0 | -4.6M |
| MILLENNIUM MANAGEMENT LLC | Reduced | 4.7M | 485.1K | -4.2M |
| GOLDMAN SACHS GROUP INC | Increased | 12.9M | 16.8M | +3.9M |
| BlackRock, Inc. | Increased | 88.4M | 91.9M | +3.6M |
| CWA Asset Management Group, LLC | Increased | 5.2M | 8.7M | +3.5M |
| Trexquant Investment LP | Sold Out | 3.1M | 0 | -3.1M |
| Arvin Capital Management LP | Increased | 182.0K | 3.0M | +2.8M |
| CITADEL ADVISORS LLC | Reduced | 3.5M | 839.1K | -2.7M |
| Quadrature Capital Ltd | Sold Out | 2.6M | 0 | -2.6M |
| Squarepoint Ops LLC | Increased | 4.2M | 6.7M | +2.5M |
| D. E. Shaw & Co., Inc. | Increased | 39.3M | 41.8M | +2.5M |
| Jump Financial, LLC | Reduced | 3.1M | 591.0K | -2.5M |
| BANK OF AMERICA CORP /DE/ | Increased | 8.6M | 11.1M | +2.5M |
| Contrarius Group Holdings Ltd | Sold Out | 2.5M | 0 | -2.5M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 46.9M | 49.3M | +2.4M |
| ION Fund Management Ltd | Increased | 4.5M | 6.8M | +2.3M |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | 3.2M | 986.9K | -2.3M |
| DIMENSIONAL FUND ADVISORS LP | Increased | 48.8M | 51.0M | +2.2M |
| STATE STREET CORP | Increased | 25.0M | 27.1M | +2.2M |
| GENDELL JEFFREY L | Increased | 11.7M | 13.9M | +2.2M |
| BARCLAYS PLC | Reduced | 2.7M | 508.5K | -2.1M |
| Nuveen, LLC | Reduced | 4.5M | 2.3M | -2.1M |
| HSBC HOLDINGS PLC | Reduced | 2.9M | 911.7K | -2.0M |
| Burkehill Global Management, LP | Sold Out | 2.0M | 0 | -2.0M |
| CAPITAL FUND MANAGEMENT S.A. | New | 0 | 2.0M | +2.0M |
| CLOUGH CAPITAL PARTNERS L P | Reduced | 3.6M | 1.7M | -1.9M |
| Aquatic Capital Management LLC | Sold Out | 1.8M | 0 | -1.8M |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Reduced | 16.5M | 14.8M | -1.7M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 6.2M | 7.9M | +1.6M |
| Flat Footed LLC | New | 0 | 1.6M | +1.6M |
| TIG Advisors, LLC | Increased | 2.5M | 4.0M | +1.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | 1.5M | 4.5K | -1.5M |
| Capital World Investors | Increased | 29.6M | 31.0M | +1.4M |
| Fideuram Asset Management (Ireland) dac | Increased | 23.2K | 1.4M | +1.4M |
| JPMORGAN CHASE & CO | Increased | 4.5M | 5.8M | +1.4M |
| VAN ECK ASSOCIATES CORP | Reduced | 21.1M | 19.8M | -1.3M |
| Balyasny Asset Management L.P. | Increased | 2.5M | 3.8M | +1.3M |
| ACADIAN ASSET MANAGEMENT LLC | Reduced | 1.2M | 28.7K | -1.2M |
| Schonfeld Strategic Advisors LLC | Increased | 69.9K | 1.3M | +1.2M |
| Polymer Capital Management (US) LLC | Sold Out | 1.0M | 0 | -1.0M |
| IMC-Chicago, LLC | Increased | 43.2K | 1.0M | +1.0M |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | New | 0 | 990.8K | +990.8K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.