TRANSOCEAN LTD (RIG) Institutional Shareholders
TRANSOCEAN LTD (RIG) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $4.84B in RIG holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of RIG tracked by InsiderSet, reporting ownership valued at approximately $449.53M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $520.31M, representing an estimated gain of +15.75% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 45% of the total disclosed RIG value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Dimensional Fund Advisors Lp, Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in TRANSOCEAN LTD (RIG).
This page ranks the largest institutional RIG shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
520
Total Reported Value
$4.84B
Largest Holder
Blackrock, Inc.
Largest Position
$449.53M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
53
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 91,927,924 | $449,527,549 | $520,312,050 | +$70,784,501 | +15.75% | |
| Dimensional Fund Advisors Lp | 0.05% | 51,009,878 | $249,450,767 | $288,715,909 | +$39,265,142 | +15.74% | |
| Vanguard Portfolio Management Llc | 0.01% | 49,296,587 | $241,060,310 | $279,018,682 | +$37,958,372 | +15.75% | |
| Two Sigma Investments, Lp | 0.17% | 46,205,304 | $225,943,937 | $261,522,021 | +$35,578,084 | +15.75% | |
| Vanguard Capital Management Llc | 0.00% | 45,200,594 | $221,030,905 | $255,835,362 | +$34,804,457 | +15.75% | |
| D. E. Shaw & Co., Inc. | 0.13% | 41,793,600 | $204,370,704 | $236,551,776 | +$32,181,072 | +15.75% | |
| Slate Path Capital Lp | 2.52% | 37,266,300 | $182,232,207 | $210,927,258 | +$28,695,051 | +15.75% | |
| Capital World Investors | 0.02% | 30,973,850 | $151,462,127 | $175,311,991 | +$23,849,864 | +15.75% | |
| Geode Capital Management, Llc | 0.01% | 28,561,101 | $139,686,758 | $161,655,832 | +$21,969,074 | +15.73% | |
| State Street Corp | 0.00% | 27,148,850 | $132,757,877 | $153,662,491 | +$20,904,614 | +15.75% | |
| Morgan Stanley | 0.01% | 26,692,648 | $130,527,057 | $151,080,388 | +$20,553,331 | +15.75% | |
| Ubs Group Ag | 0.02% | 26,372,754 | $128,962,768 | $149,269,788 | +$20,307,020 | +15.75% | |
| American Century Companies Inc | 0.05% | 22,939,135 | $112,172,371 | $129,835,504 | +$17,663,133 | +15.75% | |
| Dalal Street | Mohnish Pabrai | 30.53% | 20,398,659 | $99,749,443 | $115,456,410 | +$15,706,967 | +15.75% |
| Van Eck Associates Corp | 0.06% | 19,794,432 | $96,794,773 | $112,036,485 | +$15,241,712 | +15.75% | |
| Pilgrim Global Advisors Llc | 18.23% | 17,377,307 | $84,975,031 | $98,355,558 | +$13,380,527 | +15.75% | |
| Goldman Sachs Group Inc | 0.01% | 16,798,179 | $82,143,095 | $95,077,693 | +$12,934,598 | +15.75% | |
| Elliott Investment Management L.P. | 0.53% | 15,626,834 | $76,415,218 | $88,447,880 | +$12,032,662 | +15.75% | |
| Voloridge Investment Management, Llc | 0.31% | 14,795,082 | $72,347,951 | $83,740,164 | +$11,392,213 | +15.75% | |
| Renaissance Technologies LLC | Jim Simons | 0.10% | 14,527,153 | $71,037,778 | $82,223,686 | +$11,185,908 | +15.75% |
| Point72 Asset Management, L.P. | 0.11% | 14,172,810 | $69,305,041 | $80,218,105 | +$10,913,064 | +15.75% | |
| Gendell Jeffrey L | 0.61% | 13,853,533 | $67,743,777 | $78,410,997 | +$10,667,220 | +15.75% | |
| Keybank National Association/Oh | 0.21% | 13,040,146 | $63,766,343 | $73,807,226 | +$10,040,883 | +15.75% | |
| Fil Ltd | 0.04% | 11,603,322 | $56,740,245 | $65,674,803 | +$8,934,558 | +15.75% | |
| Bank Of America Corp | 0.00% | 11,108,135 | $54,318,780 | $62,872,044 | +$8,553,264 | +15.75% | |
| Castle Hook Partners Lp | 0.55% | 10,470,395 | $51,200,232 | $59,262,436 | +$8,062,204 | +15.75% | |
| Charles Schwab Investment Management Inc | 0.01% | 10,062,265 | $49,204,476 | $56,952,420 | +$7,747,944 | +15.75% | |
| Mackenzie Financial Corp | 0.05% | 9,742,206 | $47,639,387 | $55,140,886 | +$7,501,499 | +15.75% | |
| Hrt Financial Lp | 0.09% | 9,522,046 | $46,562,000 | $53,894,780 | +$7,332,780 | +15.75% | |
| Northern Trust Corp | 0.01% | 8,961,215 | $43,820,341 | $50,720,477 | +$6,900,136 | +15.75% | |
| Cwa Asset Management Group, Llc | 1.31% | 8,688,877 | $42,488,609 | $49,179,044 | +$6,690,435 | +15.75% | |
| Canoe Financial Lp | 0.53% | 8,682,600 | $42,457,914 | $49,143,516 | +$6,685,602 | +15.75% | |
| Bridgewater Associates, Lp | 0.16% | 7,962,797 | $38,938,077 | $45,069,431 | +$6,131,354 | +15.75% | |
| Susquehanna International Group, Llp | 0.03% | 7,852,919 | $38,400,774 | $44,447,522 | +$6,046,748 | +15.75% | |
| Assenagon Asset Management S.A. | 0.05% | 7,664,059 | $37,477,249 | $43,378,574 | +$5,901,325 | +15.75% | |
| Ion Fund Management Ltd | 3.90% | 6,750,000 | $33,007,500 | $38,205,000 | +$5,197,500 | +15.75% | |
| Squarepoint Ops Llc | 0.06% | 6,740,869 | $32,962,849 | $38,153,319 | +$5,190,470 | +15.75% | |
| Vanguard Fiduciary Trust Co | 0.01% | 6,669,333 | $32,613,038 | $37,748,425 | +$5,135,387 | +15.75% | |
| Jpmorgan Chase & Co | 0.00% | 5,849,786 | $29,719,776 | $33,109,789 | +$3,390,013 | +11.41% | |
| Caledonia (Private) Investments Pty Ltd | 0.93% | 5,582,594 | $27,298,885 | $31,597,482 | +$4,298,597 | +15.75% | |
| Bank Of New York Mellon Corp | 0.00% | 4,791,474 | $23,430,305 | $27,119,743 | +$3,689,438 | +15.75% | |
| Cibc World Market Inc. | 0.04% | 4,747,864 | $23,217,055 | $26,872,910 | +$3,655,855 | +15.75% | |
| Electron Capital Partners, Llc | 0.91% | 4,652,185 | $22,749,185 | $26,331,367 | +$3,582,182 | +15.75% | |
| Solus Alternative Asset Management Lp | 6.39% | 4,470,000 | $21,858,300 | $25,300,200 | +$3,441,900 | +15.75% | |
| Tig Advisors, Llc | 0.90% | 3,981,919 | $19,471,584 | $22,537,662 | +$3,066,078 | +15.75% | |
| Balyasny Asset Management L.P. | 0.03% | 3,766,158 | $18,416,513 | $21,316,454 | +$2,899,941 | +15.75% | |
| Penn Capital Management Company, Llc | 1.11% | 3,566,644 | $17,474,297 | $20,187,205 | +$2,712,908 | +15.53% | |
| Fmr Llc | 0.00% | 3,566,124 | $17,438,345 | $20,184,262 | +$2,745,917 | +15.75% | |
| Man Group Plc | 0.03% | 3,447,729 | $16,859,395 | $19,514,146 | +$2,654,751 | +15.75% | |
| Madison Asset Management, Llc | 0.18% | 3,030,000 | $14,816,700 | $17,149,800 | +$2,333,100 | +15.75% |
Frequently asked questions about RIG
Who owns the most RIG stock?
The largest holders of RIG are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for TRANSOCEAN LTD (RIG).
Is RIG widely held by superinvestors?
Many widely followed stocks like RIG appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly RIG is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.