Transocean Ltd. - Shares, $0.10 par value (RIG) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Shares, $0.10 par value
Symbol
RIG on NYSE
Shares outstanding
944,735,653
Price per share
$4.13
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
748,811,644
Total reported value
$2,336,310,350
% of total 13F portfolios
0.01%
Share change
+148,393,963
Value change
+$470,004,592
Number of holders
443
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Transocean Ltd. - Shares, $0.10 par value (RIG) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Mohn Frederik Wilhelm 10% $292,934,184 95,418,301 Frederik W. Mohn 30 Sep 2025
BlackRock, Inc. 6.4% $135,243,423 56,117,603 BlackRock, Inc. 31 Mar 2025
Capital World Investors 4.6% -15% $96,936,500 -$19,371,713 40,222,614 -17% Capital World Investors 31 Dec 2024
PRIMECAP MANAGEMENT CO/CA/ 1.5% $41,611,709 13,126,722 PRIMECAP MANAGEMENT CO/CA/ 30 Jun 2025

As of 30 Sep 2025, 443 institutional investors reported holding 748,811,644 shares of Transocean Ltd. - Shares, $0.10 par value (RIG). This represents 79% of the company’s total 944,735,653 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of Transocean Ltd. - Shares, $0.10 par value (RIG) together control 60% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
VANGUARD GROUP INC 10% 94,519,248 +19% 0% $294,900,054
BlackRock, Inc. 9% 85,212,336 +14% 0% $265,862,487
DIMENSIONAL FUND ADVISORS LP 3.8% 35,953,723 -7.6% 0.02% $112,174,393
Pilgrim Global Advisors LLC 3.4% 31,759,346 +80% 19% $99,089,160
AMERICAN CENTURY COMPANIES INC 2.8% 26,456,554 +13% 0.04% $82,544,449
Dalal Street, LLC 2.6% 24,442,332 23% $76,260,076
MORGAN STANLEY 2.4% 22,654,361 +23% 0% $70,681,609
GOLDMAN SACHS GROUP INC 2.3% 21,950,530 +84% 0.01% $68,485,653
STATE STREET CORP 2.3% 21,869,525 +5.3% 0% $68,232,918
GEODE CAPITAL MANAGEMENT, LLC 2.3% 21,281,287 +18% 0% $66,408,988
Capital World Investors 2% 18,665,736 -49% 0.01% $58,237,096
TWO SIGMA ADVISERS, LP 2% 18,649,554 +16% 0.12% $58,186,608
TWO SIGMA INVESTMENTS, LP 2% 18,636,188 +0.35% 0.09% $58,144,907
Ghisallo Capital Management LLC 2% 18,500,000 1.9% $57,720,000
VAN ECK ASSOCIATES CORP 1.6% 14,690,291 +6.4% 0.04% $45,834,000
SUSQUEHANNA INTERNATIONAL GROUP, LLP 1.3% 11,861,221 +191% 0.05% $37,007,009
KEYBANK NATIONAL ASSOCIATION/OH 1.2% 11,273,454 +4% 0.12% $35,173,193
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.1% 10,341,874 -12% 0.01% $32,266,647
PRIMECAP MANAGEMENT CO/CA/ 1.1% 10,081,990 -23% 0.02% $31,455,809
Zimmer Partners, LP 1% 9,699,252 0.74% $30,261,666
MILLENNIUM MANAGEMENT LLC 0.88% 8,272,562 +278% 0.02% $25,810,393
Yaupon Capital Management LP 0.87% 8,250,000 1.3% $25,740,000
GENDELL JEFFREY L 0.85% 8,023,351 +473% 0.46% $25,032,855
NORTHERN TRUST CORP 0.84% 7,896,962 +14% 0% $24,638,522
Point72 Asset Management, L.P. 0.72% 6,838,097 +78% 0.05% $21,334,863

Institutional Holders of Transocean Ltd. - Shares, $0.10 par value (RIG) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 1,424,374 $5,894,795 +$2,152,528 $4.13 34
2025 Q3 748,811,644 $2,336,310,350 +$470,004,592 $3.12 443
2025 Q2 600,402,432 $1,555,215,783 -$26,519,105 $2.59 418
2025 Q1 605,466,717 $1,919,389,453 -$14,396,519 $3.17 400
2024 Q4 609,715,296 $2,286,371,044 -$10,318,859 $3.75 435
2024 Q3 604,985,371 $2,569,919,739 -$19,422,005 $4.25 422
2024 Q2 602,370,524 $3,223,959,629 +$259,750,407 $5.35 424
2024 Q1 548,325,079 $3,443,542,394 -$24,585,452 $6.28 432
2023 Q4 8,694,926 $55,212,779 +$9,826,403 $6.35 4
2023 Q3 540,057,157 $4,431,874,646 +$222,704,528 $8.21 422
2023 Q2 494,829,779 $3,468,170,894 -$115,067,001 $7.01 383
2023 Q1 509,858,044 $3,242,820,988 +$368,954,129 $6.36 389
2022 Q4 451,835,323 $2,060,383,917 +$265,309,708 $4.56 358
2022 Q3 385,739,667 $952,856,595 +$30,990,246 $2.47 280
2022 Q2 370,692,055 $1,234,484,633 +$5,409,885 $3.33 276
2022 Q1 377,266,445 $1,724,360,380 +$258,014,556 $4.57 296
2021 Q4 316,712,403 $874,237,279 -$3,864,327 $2.76 270
2021 Q3 320,073,609 $1,213,043,285 -$74,666,584 $3.79 263
2021 Q2 340,452,727 $1,538,761,839 +$57,316,194 $4.52 273
2021 Q1 329,009,208 $1,167,858,277 +$122,976,948 $3.55 252
2020 Q4 282,227,102 $651,957,697 +$33,416,557 $2.31 211
2020 Q3 292,951,388 $236,377,912 -$64,767,047 $0.81 211
2020 Q2 350,931,362 $642,230,530 -$84,698,432 $1.83 249
2020 Q1 426,975,545 $495,074,591 -$135,100,988 $1.16 262
2019 Q4 428,312,682 $2,947,047,150 +$17,116,152 $6.88 336
2019 Q3 379,945,036 $1,697,890,141 -$120,533,778 $4.47 348
2019 Q2 437,213,120 $2,801,555,275 +$92,587,906 $6.41 351
2019 Q1 426,997,166 $3,720,049,118 -$195,573,351 $8.71 408
2018 Q4 455,621,519 $3,162,435,144 +$393,276,632 $6.94 389
2018 Q3 370,034,325 $5,161,205,808 +$670,428,497 $13.95 405
2018 Q2 322,582,284 $4,335,133,526 -$19,869,457 $13.44 400
2018 Q1 292,448,054 $2,895,563,251 +$422,819,061 $9.90 395
2017 Q4 244,552,608 $2,612,246,820 -$57,493,951 $10.68 392
2017 Q3 239,097,783 $2,572,243,253 +$123,159,079 $10.76 372
2017 Q2 260,009,240 $2,139,502,433 -$81,303,719 $8.23 389
2017 Q1 263,259,708 $3,276,218,135 +$490,227,544 $12.45 413
2016 Q4 243,368,658 $3,586,822,535 +$27,739,901 $14.74 398
2016 Q3 248,286,094 $2,643,153,406 -$170,545,659 $10.66 376
2016 Q2 261,122,513 $3,104,234,512 -$23,143,311 $11.89 366
2016 Q1 269,390,654 $2,460,103,320 +$124,201,817 $9.14 355
2015 Q4 253,204,117 $3,136,034,990 +$7,243,839 $12.38 355
2015 Q3 253,792,246 $3,277,641,341 +$328,895,245 $12.92 377
2015 Q2 226,610,504 $3,652,952,106 -$29,717,585 $16.12 387
2015 Q1 229,335,236 $3,362,443,345 -$242,211,040 $14.67 386
2014 Q4 242,656,936 $4,447,001,856 +$126,074,613 $18.33 421
2014 Q3 241,429,076 $7,711,766,123 +$515,350,319 $31.97 474
2014 Q2 223,070,932 $10,045,808,886 +$237,740,298 $45.03 495
2014 Q1 218,226,535 $9,019,353,060 +$316,970,309 $41.34 495