RIG Institutional Ownership & Shareholders
TRANSOCEAN LTD (RIG) is currently held by 536 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $4.77B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
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 $637.98M, representing an estimated gain of +41.92% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 46% 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
536
Total Reported Value
$4.77B
Largest Holder
Blackrock, Inc.
Largest Position
$449.53M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
63
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 | $637,979,793 | +$188,452,244 | +41.92% | |
| Dimensional Fund Advisors Lp | 0.05% | 51,009,878 | $249,450,767 | $354,008,553 | +$104,557,786 | +41.92% | |
| Vanguard Portfolio Management Llc | 0.01% | 49,296,587 | $241,060,310 | $342,118,314 | +$101,058,004 | +41.92% | |
| Two Sigma Investments, Lp | 0.17% | 46,205,304 | $225,943,937 | $320,664,810 | +$94,720,873 | +41.92% | |
| Vanguard Capital Management Llc | 0.00% | 45,200,594 | $221,030,905 | $313,692,122 | +$92,661,217 | +41.92% | |
| D. E. Shaw & Co., Inc. | 0.13% | 41,793,600 | $204,370,704 | $290,047,584 | +$85,676,880 | +41.92% | |
| Slate Path Capital Lp | 2.52% | 37,266,300 | $182,232,207 | $258,628,122 | +$76,395,915 | +41.92% | |
| Capital World Investors | 0.02% | 30,973,850 | $151,462,127 | $214,958,519 | +$63,496,392 | +41.92% | |
| Geode Capital Management, Llc | 0.01% | 28,561,101 | $139,686,758 | $198,214,041 | +$58,527,283 | +41.90% | |
| State Street Corp | 0.00% | 27,148,850 | $132,757,877 | $188,413,019 | +$55,655,142 | +41.92% | |
| Morgan Stanley | 0.01% | 26,692,648 | $130,527,057 | $185,246,977 | +$54,719,920 | +41.92% | |
| Ubs Group Ag | 0.02% | 26,372,754 | $128,962,768 | $183,026,913 | +$54,064,145 | +41.92% | |
| American Century Companies Inc | 0.05% | 22,939,135 | $112,172,371 | $159,197,597 | +$47,025,226 | +41.92% | |
| Dalal Street | Mohnish Pabrai | 30.53% | 20,398,659 | $99,749,443 | $141,566,693 | +$41,817,250 | +41.92% |
| Van Eck Associates Corp | 0.06% | 19,794,432 | $96,794,773 | $137,373,358 | +$40,578,585 | +41.92% | |
| Pilgrim Global Advisors Llc | 18.23% | 17,377,307 | $84,975,031 | $120,598,511 | +$35,623,480 | +41.92% | |
| Goldman Sachs Group Inc | 0.01% | 16,798,179 | $82,143,095 | $116,579,362 | +$34,436,267 | +41.92% | |
| Elliott Investment Management L.P. | 0.53% | 15,626,834 | $76,415,218 | $108,450,228 | +$32,035,010 | +41.92% | |
| Voloridge Investment Management, Llc | 0.31% | 14,795,082 | $72,347,951 | $102,677,869 | +$30,329,918 | +41.92% | |
| Renaissance Technologies LLC | Jim Simons | 0.10% | 14,527,153 | $71,037,778 | $100,818,442 | +$29,780,664 | +41.92% |
| Point72 Asset Management, L.P. | 0.11% | 14,172,810 | $69,305,041 | $98,359,301 | +$29,054,260 | +41.92% | |
| Gendell Jeffrey L | 0.61% | 13,853,533 | $67,743,777 | $96,143,519 | +$28,399,742 | +41.92% | |
| Keybank National Association/Oh | 0.21% | 13,040,146 | $63,766,343 | $90,498,613 | +$26,732,270 | +41.92% | |
| Fil Ltd | 0.04% | 11,603,322 | $56,740,245 | $80,527,055 | +$23,786,810 | +41.92% | |
| Bank Of America Corp | 0.00% | 11,108,135 | $54,318,780 | $77,090,457 | +$22,771,677 | +41.92% | |
| Castle Hook Partners Lp | 0.55% | 10,470,395 | $51,200,232 | $72,664,541 | +$21,464,309 | +41.92% | |
| Charles Schwab Investment Management Inc | 0.01% | 10,062,265 | $49,204,476 | $69,832,119 | +$20,627,643 | +41.92% | |
| Hrt Financial Lp | 0.09% | 9,522,046 | $46,562,000 | $66,082,999 | +$19,520,999 | +41.92% | |
| Northern Trust Corp | 0.01% | 8,961,215 | $43,820,341 | $62,190,832 | +$18,370,491 | +41.92% | |
| Cwa Asset Management Group, Llc | 1.24% | 7,962,959 | $41,725,905 | $55,262,935 | +$13,537,030 | +32.44% | |
| Bridgewater Associates, Lp | 0.16% | 7,962,797 | $38,938,077 | $55,261,811 | +$16,323,734 | +41.92% | |
| Susquehanna International Group, Llp | 0.03% | 7,852,919 | $38,400,774 | $54,499,258 | +$16,098,484 | +41.92% | |
| Ion Fund Management Ltd | 3.90% | 6,750,000 | $33,007,500 | $46,845,000 | +$13,837,500 | +41.92% | |
| Squarepoint Ops Llc | 0.06% | 6,740,869 | $32,962,849 | $46,781,631 | +$13,818,782 | +41.92% | |
| Mackenzie Financial Corp | 0.04% | 6,239,189 | $32,693,350 | $43,299,972 | +$10,606,622 | +32.44% | |
| Vanguard Fiduciary Trust Co | 0.01% | 6,669,333 | $32,613,038 | $46,285,171 | +$13,672,133 | +41.92% | |
| Jpmorgan Chase & Co | 0.00% | 5,849,786 | $29,719,776 | $40,597,515 | +$10,877,739 | +36.60% | |
| Caledonia (Private) Investments Pty Ltd | 0.93% | 5,582,594 | $27,298,885 | $38,743,202 | +$11,444,317 | +41.92% | |
| Bank Of New York Mellon Corp | 0.00% | 4,791,474 | $23,430,305 | $33,252,830 | +$9,822,525 | +41.92% | |
| Cibc World Market Inc. | 0.04% | 4,747,864 | $23,217,055 | $32,950,176 | +$9,733,121 | +41.92% | |
| Electron Capital Partners, Llc | 0.91% | 4,652,185 | $22,749,185 | $32,286,164 | +$9,536,979 | +41.92% | |
| Solus Alternative Asset Management Lp | 6.39% | 4,470,000 | $21,858,300 | $31,021,800 | +$9,163,500 | +41.92% | |
| Tig Advisors, Llc | 0.90% | 3,981,919 | $19,471,584 | $27,634,518 | +$8,162,934 | +41.92% | |
| Balyasny Asset Management L.P. | 0.03% | 3,766,158 | $18,416,513 | $26,137,137 | +$7,720,624 | +41.92% | |
| Penn Capital Management Company, Llc | 1.11% | 3,566,644 | $17,474,297 | $24,752,509 | +$7,278,212 | +41.65% | |
| Fmr Llc | 0.00% | 3,566,124 | $17,438,345 | $24,748,901 | +$7,310,556 | +41.92% | |
| Man Group Plc | 0.03% | 3,447,729 | $16,859,395 | $23,927,239 | +$7,067,844 | +41.92% | |
| Madison Asset Management, Llc | 0.18% | 3,030,000 | $14,816,700 | $21,028,200 | +$6,211,500 | +41.92% | |
| Arvin Capital Management Lp | 2.73% | 2,982,831 | $14,586,044 | $20,700,847 | +$6,114,803 | +41.92% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.03% | 2,815,057 | $13,765,628 | $19,536,496 | +$5,770,868 | +41.92% |
Frequently asked questions about RIG
Who are the largest institutional holders of RIG?
The largest institutional holders of RIG reported in the latest SEC Form 13F filings include Blackrock, Inc., Dimensional Fund Advisors Lp, Vanguard Portfolio Management Llc, Two Sigma Investments, Lp, and Vanguard Capital Management Llc. InsiderSet ranks institutional holders by their latest reported RIG position.
What is RIG institutional ownership?
This page tracks RIG positions reported by institutional investment managers through SEC Form 13F. TRANSOCEAN LTD (RIG) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own RIG?
InsiderSet currently tracks 536 institutional managers reporting RIG holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of RIG shareholders.
How much RIG stock do institutions own?
Institutional investment managers disclosed approximately $4.77B in RIG holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was RIG institutional ownership last updated?
The latest RIG institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional RIG holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its RIG position after the reporting date.
Are institutions buying or selling RIG?
Institutional buying and selling can be analyzed by comparing RIG positions across consecutive 13F reporting periods. InsiderSet's RIG Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View RIG ownership changes.
How has RIG institutional ownership changed over time?
InsiderSet tracks RIG institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.