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Equibles

RIG

Transocean Ltd.

Company with tickers: RIG

CIK
1451505
CUSIP
H8817H100
Shares Outstanding
1,106,760,308
13F Activity (30d)
26 filings 19 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 544
Total Value: $6,140,599,924
Total Shares: 926,184,049
Showing 1–100 of 583 holdings by value · page 1 of 6

Institutional Ownership Trend

26 quarters

Superinvestors Holding RIG

All superinvestors →
Mohnish Pabrai $135,203,415 Joel Greenblatt $7,352,060 Ray Dalio $2,774,197

Holder Concentration

Across 544 13F filers
Top Holder
9.5%
Sep 2023 → Mar 2026 · range 9.5% – 12.6%
of institutional value
Top 5
29.0%
Sep 2023 → Mar 2026 · range 29.0% – 45.4%
of institutional value
Top 10
44.3%
Sep 2023 → Mar 2026 · range 44.3% – 60.2%
of institutional value
HHI
292
Sep 2023 → Mar 2026 · range 292 – 520
Broadly held

Quarterly Activity

vs Feb 9, 2026
New
544
Increased
0
Decreased
0
Sold Out
1
Unchanged
0
Holder count: +543
Institutional value: +1009.6%
Shares held: +855.6%

Top New Positions

vs Feb 9, 2026
Institution Acquired Value (USD) Open
Mega BlackRock, Inc. 88,371,248 $585,901,363
Mega DIMENSIONAL FUND ADVISORS LP 48,819,576 $323,673,786
Mega TWO SIGMA INVESTMENTS, LP 46,463,736 $308,054,569
Mega VANGUARD CAPITAL MANAGEMENT LLC 44,272,423 $293,526,164
Mega D. E. Shaw & Co., Inc. 40,536,999 $268,760,302

Top Sold-Out Positions

vs Feb 9, 2026
Institution Previously Held Last Value (USD) Open
— Frederik W. Mohn 96,918,301 $553,403,498
Filter: New 544 Increased 0 Reduced 0 Sold out 1 Unchanged 0
Showing 100 of 583
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $585,901,363 9.54% 88,371,248
Mega DIMENSIONAL FUND ADVISORS LP $323,673,786 5.27% 48,819,576
Mega TWO SIGMA INVESTMENTS, LP $308,054,569 5.02% 46,463,736
Mega VANGUARD CAPITAL MANAGEMENT LLC $293,526,164 4.78% 44,272,423
Mega D. E. Shaw & Co., Inc. $260,311,030 4.24% 39,262,599
Mid Slate Path Capital LP $199,311,723 3.25% 30,062,100
Mega Capital World Investors $196,085,425 3.19% 29,575,479
Mega STATE STREET CORP $165,632,012 2.70% 24,982,204
Small PILGRIM GLOBAL ADVISORS LLC $158,543,985 2.58% 23,913,120
Mega GEODE CAPITAL MANAGEMENT, LLC $155,616,687 2.53% 23,471,597
Mega AMERICAN CENTURY COMPANIES INC $150,893,370 2.46% 22,759,181
Mega MORGAN STANLEY $143,825,008 2.34% 21,693,064
Mega VAN ECK ASSOCIATES CORP $140,139,164 2.28% 21,137,129
Small Dalal Street, LLC $135,203,415 2.20% 20,392,672
Large VOLORIDGE INVESTMENT MANAGEMENT, LLC $109,678,213 1.79% 16,542,717
Large MARSHALL WACE, LLP $106,370,153 1.73% 16,043,764
Large Elliott Investment Management L.P. $103,605,909 1.69% 15,626,834
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $100,395,438 1.63% 15,142,600
Mega GOLDMAN SACHS GROUP INC $85,536,160 1.39% 12,901,382
Large KEYBANK NATIONAL ASSOCIATION/OH Bank $83,915,120 1.37% 12,656,881
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $81,149,874 1.32% 12,239,800
Mid GENDELL JEFFREY L $77,571,000 1.26% 11,700,000
Mega FIL Ltd $74,526,603 1.21% 11,240,815
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $65,045,988 1.06% 9,810,858
Mega BANK OF AMERICA CORP /DE/ Bank $57,033,400 0.93% 8,602,323
Mega NORTHERN TRUST CORP Bank $53,985,064 0.88% 8,142,544
Large Driehaus Capital Management LLC $47,808,061 0.78% 7,210,869
Mega VANGUARD FIDUCIARY TRUST CO Bank $42,507,509 0.69% 6,411,389
Large Balyasny Asset Management L.P. $41,437,500 0.67% 6,250,000
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $41,313,823 0.67% 6,231,346
Mega UBS Group AG $40,133,264 0.65% 6,053,283
Mega Bank of New York Mellon Corp Bank $37,783,217 0.62% 5,698,827
Large Point72 Asset Management, L.P. $35,844,597 0.58% 5,406,425
Large TUDOR INVESTMENT CORP ET AL $34,995,911 0.57% 5,278,418
Mid CWA Asset Management Group, LLC $34,508,831 0.56% 5,204,952
Large CIBC WORLD MARKET INC. $34,499,125 0.56% 5,203,488
Mega MILLENNIUM MANAGEMENT LLC $31,104,744 0.51% 4,691,515
Mid Empyrean Capital Partners, LP $30,302,169 0.49% 4,570,463
Small ION Fund Management Ltd $29,758,092 0.48% 4,488,400
Mega JPMORGAN CHASE & CO $29,747,111 0.48% 4,486,744
Mega Nuveen, LLC $29,671,045 0.48% 4,475,271
Small Solus Alternative Asset Management LP $29,636,100 0.48% 4,470,000
Large Squarepoint Ops LLC $27,897,230 0.45% 4,207,727
Mega FMR LLC $26,078,037 0.42% 3,933,339
Mega JANE STREET GROUP, LLC $25,391,574 0.41% 3,829,800
Large PEAK6 LLC $24,792,885 0.40% 3,739,500
Small CLOUGH CAPITAL PARTNERS L P $23,940,711 0.39% 3,610,967
Mid Canoe Financial LP $23,678,382 0.39% 3,571,400
Mega CITADEL ADVISORS LLC $23,302,533 0.38% 3,514,711
Mega AQR CAPITAL MANAGEMENT LLC $21,721,309 0.35% 3,276,216
Mega BNP PARIBAS ARBITRAGE, SA $21,525,057 0.35% 3,246,615
Mega CITADEL ADVISORS LLC $21,101,301 0.34% 3,182,700
Large Rokos Capital Management LLP $21,014,262 0.34% 3,169,572
Mid Penn Capital Management Company, LLC $20,901,512 0.34% 3,152,566
Large Man Group plc $20,895,353 0.34% 3,151,637
Large RENAISSANCE TECHNOLOGIES LLC $20,783,246 0.34% 3,134,728
Mid Jump Financial, LLC $20,535,529 0.33% 3,097,365
Large Trexquant Investment LP $20,393,117 0.33% 3,075,885
Mid Madison Asset Management, LLC $20,088,900 0.33% 3,030,000
Mega HSBC HOLDINGS PLC $19,339,060 0.31% 2,916,902
Mega JANE STREET GROUP, LLC $17,645,082 0.29% 2,661,400
Mega BARCLAYS PLC $17,604,094 0.29% 2,655,218
Mid FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A. $17,220,536 0.28% 2,597,366
Mid Quadrature Capital Ltd $17,185,748 0.28% 2,592,119
Mega PRIMECAP MANAGEMENT CO/CA/ $17,060,912 0.28% 2,573,290
Large Balyasny Asset Management L.P. $16,646,418 0.27% 2,510,772
Large PANAGORA ASSET MANAGEMENT INC $16,618,592 0.27% 2,506,575
Mid TIG Advisors, LLC $16,549,978 0.27% 2,496,226
Mid Contrarius Group Holdings Ltd $16,376,729 0.27% 2,470,095
Large Public Sector Pension Investment Board Pension $15,756,652 0.26% 2,376,569
Mega CITADEL ADVISORS LLC $15,707,796 0.26% 2,369,200
Mega Invesco Ltd. $15,639,020 0.25% 2,358,827
Large Walleye Trading LLC $15,416,739 0.25% 2,325,300
Large Walleye Trading LLC $15,170,103 0.25% 2,288,100
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $14,430,075 0.23% 2,176,482
Large Connor, Clark & Lunn Investment Management Ltd. $13,479,691 0.22% 2,033,136
Large Parallax Volatility Advisers, L.P. $13,359,450 0.22% 2,015,000
Mid Burkehill Global Management, LP $13,260,000 0.22% 2,000,000
Mid MASTERS CAPITAL MANAGEMENT LLC $13,260,000 0.22% 2,000,000
Mega Swiss National Bank Bank $13,007,595 0.21% 1,961,930
Mid Aquatic Capital Management LLC $11,713,187 0.19% 1,766,695
Mega CANADA PENSION PLAN INVESTMENT BOARD Pension $10,907,676 0.18% 1,645,200
Small Forvis Mazars Wealth Advisors, LLC $10,885,909 0.18% 1,641,917
Large Creative Planning $10,486,239 0.17% 1,581,635
Small Trek Financial, LLC $10,392,094 0.17% 1,567,435
Mega NEUBERGER BERMAN GROUP LLC $10,310,657 0.17% 1,555,152
Large TUDOR INVESTMENT CORP ET AL $10,049,754 0.16% 1,515,800
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $9,765,497 0.16% 1,472,926
Large HRT FINANCIAL LP $9,466,486 0.15% 1,427,826
Small Packer & Co Ltd $9,315,150 0.15% 1,405,000
Mid ALGERT GLOBAL LLC $9,199,058 0.15% 1,387,490
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $9,129,138 0.15% 1,376,944
Large Russell Investments Group, Ltd. $9,113,238 0.15% 1,374,546
Large TUDOR INVESTMENT CORP ET AL $9,092,382 0.15% 1,371,400
Mega WELLS FARGO & COMPANY/MN $8,893,427 0.14% 1,341,392
Small Lloyd Harbor Capital Management, LLC $8,784,087 0.14% 1,324,900
Mid Hosking Partners LLP $8,771,145 0.14% 1,322,948
Large ACADIAN ASSET MANAGEMENT LLC $8,185,258 0.13% 1,234,579
Large Thrivent Financial for Lutherans $8,097,802 0.13% 1,221,388
Mega RHUMBLINE ADVISERS $7,818,652 0.13% 1,179,284

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