TRANSOCEAN LTD (RIG)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
Institutions report 1,005,531,746 shares against 1,116,880,085 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. A figure this high can overstate: where an adviser and a sub-adviser both report the same shares, both are counted.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $449.5M | 91,927,924 | 0.01% | 8q | +4.0%+$17.4M |
| DIMENSIONAL FUND ADVISORS LP | $249.5M | 51,009,878 | 0.05% | 31q | +4.5%+$10.7M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $241.1M | 49,296,587 | 0.01% | 2q | +5.2%+$11.9M |
| TWO SIGMA INVESTMENTS, LP | $225.9M | 46,205,304 | 0.16% | 31q | -0.6%-$1.3M |
| VANGUARD CAPITAL MANAGEMENT LLC | $221.0M | 45,200,594 | 0.00% | 2q | +2.1%+$4.5M |
| D. E. Shaw & Co., Inc. | $206.3M incl. $2.0M options CALL | 41,793,600 | 0.10% | 31q | +6.4%+$12.5M |
| Slate Path Capital LP | $182.2M | 37,266,300 | 2.52% | 2q | +24.0%+$35.2M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $174.8M incl. $136.4M options CALL+PUT | 7,852,919 | 0.01% | 31q | +26.0%+$36.1M |
| Capital World Investors | $151.5M | 30,973,850 | 0.02% | 14q | +4.7%+$6.8M |
| GEODE CAPITAL MANAGEMENT, LLC | $139.7M | 28,561,101 | 0.01% | 31q | +21.7%+$24.9M |
| STATE STREET CORP | $132.8M | 27,148,850 | 0.00% | 31q | +8.7%+$10.6M |
| MORGAN STANLEY | $130.5M | 26,692,648 | 0.01% | 35q | +23.0%+$24.4M |
| UBS Group AG | $130.4M incl. $1.5M options PUT | 26,372,754 | 0.02% | 31q | +335.7%+$100.5M |
| AMERICAN CENTURY COMPANIES INC | $112.2M | 22,939,135 | 0.05% | 22q | +0.8%+$880.0K |
| Dalal Street, LLC | $99.7M | 20,398,659 | 30.53% | 4q | HELD |
| VAN ECK ASSOCIATES CORP | $96.8M | 19,794,432 | 0.06% | 31q | -6.4%-$6.6M |
| GOLDMAN SACHS GROUP INC | $88.4M incl. $6.3M options PUT | 16,798,179 | 0.01% | 31q | +30.2%+$20.5M |
| PILGRIM GLOBAL ADVISORS LLC | $85.0M | 17,377,307 | 18.23% | 8q | -27.3%-$32.0M |
| Elliott Investment Management L.P. | $76.4M | 15,626,834 | 0.34% | 2q | HELD |
| Assenagon Asset Management S.A. | $75.0M | 15,328,118 | 0.05% | new | NEW |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | $72.3M | 14,795,082 | 0.31% | 2q | -10.6%-$8.5M |
| RENAISSANCE TECHNOLOGIES LLC | $71.0M | 14,527,153 | 0.10% | 7q | +363.4%+$55.7M |
| Point72 Asset Management, L.P. | $70.1M incl. $842.5K options CALL | 14,172,810 | 0.08% | 18q | +162.1%+$43.4M |
| GENDELL JEFFREY L | $67.7M | 13,853,533 | 0.60% | 9q | +18.4%+$10.5M |
| KEYBANK NATIONAL ASSOCIATION/OH | $63.8M | 13,040,146 | 0.21% | 12q | +3.0%+$1.9M |
| FIL Ltd | $56.7M | 11,603,322 | 0.04% | 12q | +3.2%+$1.8M |
| BANK OF AMERICA CORP /DE/ | $54.3M | 11,108,135 | 0.00% | 31q | +29.1%+$12.3M |
| Castle Hook Partners LP | $51.2M | 10,470,395 | 0.23% | new | NEW |
| Balyasny Asset Management L.P. | $50.2M incl. $31.8M options PUT | 3,766,158 | 0.06% | 2q | +50.0%+$16.7M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $49.2M | 10,062,265 | 0.01% | 31q | +2.6%+$1.2M |
| MACKENZIE FINANCIAL CORP | $47.6M | 9,742,206 | 0.05% | new | NEW |
| HRT FINANCIAL LP | $46.6M | 9,522,046 | 0.09% | 2q | +566.9%+$39.6M |
| NORTHERN TRUST CORP | $43.8M | 8,961,215 | 0.01% | 31q | +10.1%+$4.0M |
| JANE STREET GROUP, LLC | $43.4M CALL+PUT | options only | 0.00% | 31q | OPTIONS |
| CWA Asset Management Group, LLC | $42.5M | 8,688,877 | 1.30% | 2q | +66.9%+$17.0M |
| Canoe Financial LP | $42.5M | 8,682,600 | 0.53% | 2q | +143.1%+$25.0M |
| Bridgewater Associates, LP | $38.9M | 7,962,797 | 0.16% | 3q | +1803.0%+$36.9M |
| Squarepoint Ops LLC | $35.7M incl. $2.7M options CALL+PUT | 6,740,869 | 0.04% | 24q | +60.2%+$13.4M |
| Ninepoint Partners LP | $34.2M | 7,000,000 | 2.61% | 2q | HELD |
| ION Fund Management Ltd | $33.0M | 6,750,000 | 2.09% | 3q | +50.4%+$11.1M |
| VANGUARD FIDUCIARY TRUST CO | $32.6M | 6,669,333 | 0.01% | 2q | +4.0%+$1.3M |
| CITADEL ADVISORS LLC | $30.9M incl. $26.8M options CALL+PUT | 839,078 | 0.00% | 31q | -76.1%-$98.4M |
| GROUP ONE TRADING LLC | $30.5M CALL+PUT | options only | 0.04% | 31q | OPTIONS |
| JPMORGAN CHASE & CO | $29.7M | 5,849,786 | 0.00% | 31q | +30.4%+$6.9M |
| Caledonia (Private) Investments Pty Ltd | $27.3M | 5,582,594 | 0.93% | new | NEW |
| Walleye Trading LLC | $26.4M incl. $23.1M options CALL+PUT | 665,666 | 0.03% | 31q | +2118.9%+$25.2M |
| Bank of New York Mellon Corp | $23.4M | 4,791,474 | 0.00% | 31q | -15.9%-$4.4M |
| IMC-Chicago, LLC | $23.3M incl. $18.1M options CALL+PUT | 1,046,762 | 0.01% | 19q | +2321.2%+$22.3M |
| CIBC WORLD MARKET INC. | $23.2M | 4,747,864 | 0.04% | 18q | -8.8%-$2.2M |
| Electron Capital Partners, LLC | $22.7M | 4,652,185 | 0.91% | new | NEW |
| Solus Alternative Asset Management LP | $21.9M | 4,470,000 | 6.39% | 12q | HELD |
| Parallax Volatility Advisers, L.P. | $21.7M CALL+PUT | options only | 0.04% | 31q | OPTIONS |
| TIG Advisors, LLC | $19.5M | 3,981,919 | 0.86% | 2q | +59.5%+$7.3M |
| Penn Capital Management Company, LLC | $17.5M | 3,566,644 | 1.11% | 16q | +13.1%+$2.0M |
| FMR LLC | $17.4M | 3,566,124 | 0.00% | 31q | -9.3%-$1.8M |
| SIMPLEX TRADING, LLC | $17.0M CALL+PUT | options only | 0.01% | 21q | OPTIONS |
| Man Group plc | $16.9M | 3,447,729 | 0.03% | 2q | +9.4%+$1.4M |
| Madison Asset Management, LLC | $14.8M | 3,030,000 | 0.18% | 27q | HELD |
| MASTERS CAPITAL MANAGEMENT LLC | $14.7M incl. $4.9M options CALL | 2,000,000 | 0.38% | 4q | HELD |
| Arvin Capital Management LP | $14.6M | 2,982,831 | 1.90% | 2q | +1538.9%+$13.7M |
| TUDOR INVESTMENT CORP ET AL | $14.0M CALL+PUT | options only | 0.02% | 5q | OPTIONS |
| Connor, Clark & Lunn Investment Management Ltd. | $13.8M | 2,815,057 | 0.03% | 2q | +38.5%+$3.8M |
| Rokos Capital Management LLP | $12.8M | 2,619,483 | 0.05% | 2q | -17.4%-$2.7M |
| PANAGORA ASSET MANAGEMENT INC | $12.8M | 2,608,633 | 0.04% | 3q | +4.1%+$499.1K |
| AQR CAPITAL MANAGEMENT LLC | $12.4M | 2,543,245 | 0.00% | 22q | -22.4%-$3.6M |
| NEW YORK STATE COMMON RETIREMENT FUND | $12.4M | 2,528,283 | 0.02% | 15q | +16.2%+$1.7M |
| PRIMECAP MANAGEMENT CO/CA/ | $12.2M | 2,493,290 | 0.01% | 31q | -3.1%-$391.2K |
| Public Sector Pension Investment Board | $11.6M | 2,376,569 | 0.03% | 3q | HELD |
| Nuveen, LLC | $11.4M | 2,329,295 | 0.00% | 6q | -48.0%-$10.5M |
| CAPITAL FUND MANAGEMENT S.A. | $10.8M incl. $1.1M options CALL+PUT | 1,995,840 | 0.05% | new | NEW |
| FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A. | $10.3M | 2,102,868 | 0.31% | 3q | -19.0%-$2.4M |
| Trek Financial, LLC | $10.2M | 2,089,947 | 0.51% | 4q | +33.3%+$2.6M |
| PEAK6 LLC | $9.7M CALL+PUT | options only | 0.02% | 7q | OPTIONS |
| Swiss National Bank | $9.5M | 1,943,130 | 0.00% | 31q | -1.0%-$91.9K |
| CANADA PENSION PLAN INVESTMENT BOARD | $9.4M | 1,930,700 | 0.01% | 3q | +17.4%+$1.4M |
| Schonfeld Strategic Advisors LLC | $9.2M incl. $2.9M options CALL | 1,271,477 | 0.03% | 10q | +1720.1%+$8.6M |
| BNP PARIBAS FINANCIAL MARKETS | $9.0M incl. $4.2M options CALL | 986,927 | 0.00% | 31q | -69.6%-$20.6M |
| CASTLEARK MANAGEMENT LLC | $8.9M | 1,813,160 | 0.24% | 3q | +116.6%+$4.8M |
| Russell Investments Group, Ltd. | $8.8M | 1,804,318 | 0.01% | 20q | +31.3%+$2.1M |
| NEUBERGER BERMAN GROUP LLC | $8.7M | 1,785,212 | 0.01% | 13q | +14.8%+$1.1M |
| Fideuram Asset Management (Ireland) dac | $8.7M | 1,401,069 | 0.17% | 2q | +5950.3%+$8.5M |
| Invesco Ltd. | $8.4M | 1,727,732 | 0.00% | 31q | -26.8%-$3.1M |
| CLOUGH CAPITAL PARTNERS L P | $8.3M | 1,700,814 | 0.68% | 14q | -52.9%-$9.3M |
| Creative Planning | $8.0M | 1,632,895 | 0.00% | 31q | +3.2%+$250.7K |
| Flat Footed LLC | $7.8M | 1,603,778 | 0.60% | new | NEW |
| LMR Partners LLP | $7.5M incl. $5.6M options PUT | 378,400 | 0.03% | 2q | -39.2%-$4.8M |
| Forvis Mazars Wealth Advisors, LLC | $7.3M | 1,502,697 | 0.12% | 3q | -8.5%-$680.8K |
| NOMURA HOLDINGS INC | $7.1M incl. $1.5M options CALL+PUT | 1,161,607 | 0.01% | 3q | +32.6%+$1.8M |
| ALGERT GLOBAL LLC | $7.0M | 1,427,890 | 0.08% | 4q | +2.9%+$197.6K |
| ALLIANCEBERNSTEIN L.P. | $6.9M | 1,037,415 | 0.00% | 19q | -1.5%-$104.1K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $6.7M | 1,378,386 | 0.01% | 15q | HELD |
| LONESTAR CAPITAL MANAGEMENT LLC | $6.7M incl. $4.4M options CALL | 475,000 | 1.95% | 3q | -47.2%-$6.0M |
| WELLS FARGO & COMPANY/MN | $6.6M | 1,349,815 | 0.00% | 31q | +0.6%+$41.2K |
| RHUMBLINE ADVISERS | $6.3M | 1,291,460 | 0.00% | 16q | +9.5%+$548.5K |
| PRICE T ROWE ASSOCIATES INC /MD/ | $6.2M | 1,271,051 | 0.00% | 31q | +22.2%+$1.1M |
| Gotham Asset Management, LLC | $5.6M | 1,144,956 | 0.01% | 7q | +3.3%+$176.3K |
| Hosking Partners LLP | $5.6M | 1,142,083 | 0.19% | 14q | -13.7%-$884.4K |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $5.5M | 1,118,604 | 0.01% | 31q | -3.3%-$188.6K |
| GLAZER CAPITAL, LLC | $5.3M incl. $1.7M options PUT | 750,001 | 0.13% | 2q | HELD |
| Alphadyne Asset Management LP | $5.3M incl. $3.6M options CALL+PUT | 346,628 | 0.05% | 2q | HELD |
Showing the largest 100 of 552 reported holders.
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-10-15 | 2026-10-15 | Material agreement entered | filing |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-21 | Long Brady K | EVP & Chief Legal Officer | Sold | 81,741 | $609.0K |
| 2026-07-02 | DEATON CHAD C | Director | Bought | 35,000 | $173.2K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 136 | $142.8M | 26,989,222 | 26 | 34 | 23 | 0.5% |
| Q2 2026 | 552 | $5.4B | 1,005,531,746 | 77 | 183 | 152 | 8.1% |
| Q1 2026 | 553 | $6.6B | 907,402,827 | 137 | 165 | 136 | 8.7% |
| Q4 2025 | 480 | $3.5B | 775,127,312 | 79 | 161 | 105 | 7.4% |
| Q3 2025 | 456 | $2.5B | 753,398,092 | 86 | 156 | 97 | 6.7% |
| Q2 2025 | 429 | $1.7B | 602,591,739 | 66 | 150 | 97 | 5.4% |
| Q1 2025 | 414 | $2.0B | 606,537,476 | 37 | 123 | 116 | 5.2% |
| Q4 2024 | 451 | $2.5B | 609,972,392 | 62 | 120 | 121 | 7.0% |
| Q3 2024 | 433 | $2.8B | 605,916,350 | 53 | 121 | 116 | 7.2% |
| Q2 2024 | 435 | $3.5B | 605,048,778 | 51 | 131 | 115 | 7.1% |
| Q1 2024 | 445 | $4.1B | 587,011,357 | 70 | 134 | 101 | 10.3% |
| Q4 2023 | 448 | $4.2B | 567,123,479 | 57 | 122 | 117 | 13.7% |
| Q3 2023 | 444 | $5.0B | 540,559,643 | 82 | 128 | 106 | 12.0% |
| Q2 2023 | 410 | $4.1B | 512,290,876 | 57 | 109 | 111 | 12.8% |
| Q1 2023 | 418 | $4.0B | 529,334,650 | 89 | 103 | 135 | 14.7% |
| Q4 2022 | 380 | $2.5B | 464,715,548 | 94 | 91 | 106 | 14.3% |
| Q3 2022 | 314 | $1.4B | 486,205,058 | 50 | 95 | 82 | 13.4% |
| Q2 2022 | 308 | $1.8B | 490,022,283 | 41 | 71 | 103 | 9.4% |
| Q1 2022 | 318 | $2.0B | 390,274,784 | 70 | 92 | 87 | 10.3% |
| Q4 2021 | 290 | $1.1B | 340,116,668 | 35 | 92 | 84 | 13.7% |
| Q3 2021 | 280 | $1.8B | 439,455,049 | 36 | 80 | 77 | 9.8% |
| Q2 2021 | 289 | $2.3B | 457,779,486 | 56 | 91 | 71 | 8.2% |
| Q1 2021 | 272 | $2.2B | 575,619,187 | 67 | 60 | 77 | 6.3% |
| Q4 2020 | 242 | $1.4B | 481,593,696 | 39 | 58 | 77 | 11.0% |
| Q3 2020 | 247 | $4.4B | 761,522,022 | 30 | 66 | 83 | 86.0% |
| Q2 2020 | 285 | $4.5B | 918,903,314 | 50 | 84 | 80 | 67.1% |
| Q1 2020 | 306 | $6.3B | 1,438,429,628 | 36 | 92 | 102 | 80.3% |
| Q4 2019 | 376 | $9.7B | 1,403,993,348 | 44 | 92 | 133 | 13.4% |
| Q3 2019 | 378 | $8.5B | 1,588,255,143 | 63 | 120 | 105 | 42.5% |
| Q2 2019 | 386 | $6.9B | 980,161,495 | 43 | 127 | 103 | 31.7% |
| Q1 2019 | 435 | $6.5B | 1,480,438,030 | 51 | 112 | 137 | 6.4% |
| Q4 2018 | 429 | $9.8B | 996,803,496 | 10 | 9 | 6 | 29.7% |
