Transocean Ltd (Switzerland)

Historical 13F Holders

Symbol
RIG
CUSIP
H8817H100
All holders as of
Q2 2026
Type
Equity
Class
REG SHS
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing for H8817H100 since 12/18/2024, newest first.

Filer % of Class Filed
Vanguard Group Inc 13G/A Amendment 12 0% 3/27/2026
Event 3/13/2026
Mohn Frederik Wilhelm 13D/A Amendment 9
8.8% 2/11/2026
Event 2/9/2026
Mohn Frederik Wilhelm 13D/A Amendment 8
10.1% 9/30/2025
Event 9/30/2025
Primecap Management Co/CA/ 13G/A Amendment 7 1.5% 8/14/2025
Event 6/30/2025
BlackRock, Inc. 13G/A Amendment 1 6.4% 4/23/2025
Event 3/31/2025
Capital World Investors 13G/A Amendment 1 4.6% 2/13/2025
Event 12/31/2024
Capital World Investors 13G 5.5% 11/13/2024
Event 9/30/2024

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 13 180 k $942 k
2026 Q2 599 1.01 B $6.04 B
2026 Q1 593 907 M $6.01 B
2025 Q4 518 775 M $3.20 B
2025 Q3 506 753 M $2.35 B
2025 Q2 470 605 M $1.57 B
2025 Q1 445 607 M $1.92 B
2024 Q4 499 610 M $2.29 B
2024 Q3 479 607 M $2.62 B
2024 Q2 482 629 M $3.36 B
2024 Q1 496 587 M $3.69 B
2023 Q4 508 571 M $3.62 B
2023 Q3 492 538 M $4.41 B
2023 Q2 460 512 M $3.60 B
2023 Q1 469 529 M $3.37 B
2022 Q4 435 473 M $2.16 B
2022 Q3 394 400 M $991 M
2022 Q2 375 384 M $1.28 B
2022 Q1 380 382 M $1.75 B
2021 Q4 368 333 M $920 M
2021 Q3 343 323 M $1.22 B
2021 Q2 355 342 M $1.55 B
2021 Q1 344 330 M $1.17 B
2020 Q4 327 308 M $807 M
2020 Q3 328 307 M $248 M
2020 Q2 368 365 M $670 M
2020 Q1 396 435 M $537 M
2019 Q4 455 442 M $3.05 B
2019 Q3 456 440 M $1.97 B
2019 Q2 471 457 M $2.93 B
2019 Q1 517 437 M $3.81 B
2018 Q4 517 470 M $3.27 B
2018 Q3 540 401 M $5.60 B
2018 Q2 525 342 M $4.60 B
2018 Q1 494 344 M $3.40 B
2017 Q4 507 293 M $3.13 B
2017 Q3 482 289 M $3.11 B
2017 Q2 496 268 M $2.21 B
2017 Q1 507 271 M $3.37 B
2016 Q4 503 252 M $3.71 B
2016 Q3 470 253 M $2.70 B
2016 Q2 456 266 M $3.17 B
2016 Q1 463 276 M $2.52 B
2015 Q4 460 269 M $3.33 B
2015 Q3 473 259 M $3.34 B
2015 Q2 481 231 M $3.73 B
2015 Q1 489 233 M $3.44 B
2014 Q4 534 256 M $4.70 B
2014 Q3 570 242 M $7.74 B
2014 Q2 568 236 M $10.6 B
2014 Q1 572 221 M $9.13 B