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 Shares Held, Excluding Options
Total Filers

13D/G Filers

Each filer's latest filing for H8817H100 since 12/18/2024, largest first.

Filer % of Class Filed
Mohn Frederik Wilhelm 13D/A
8.8% 2/11/2026
Event 2/9/2026
BlackRock, Inc. 13G/A 6.4% 4/23/2025
Event 3/31/2025
Under 5%, checked the "5 percent or less" box, or amended by a later filing (3)
Capital World Investors 13G/A 4.6% 2/13/2025
Event 12/31/2024
Primecap Management Co/CA/ 13G/A 1.5% 8/14/2025
Event 6/30/2025
Vanguard Group Inc 13G/A 0% 3/27/2026
Event 3/13/2026

13F Holders by Quarter

Period Filers Shares, Excl. Options Value, Excl. Options
2026 Q3 288 261 M $1.37B
2026 Q2 549 998 M $4.88B
2026 Q1 551 907 M $6.01B
2025 Q4 480 772 M $3.19B
2025 Q3 462 749 M $2.34B
2025 Q2 433 601 M $1.56B
2025 Q1 418 606 M $1.92B
2024 Q4 453 610 M $2.29B
2024 Q3 437 605 M $2.62B
2024 Q2 436 602 M $3.22B
2024 Q1 446 549 M $3.45B
2023 Q4 448 548 M $3.48B
2023 Q3 441 537 M $4.41B
2023 Q2 410 512 M $3.60B
2023 Q1 419 527 M $3.35B
2022 Q4 388 463 M $2.11B
2022 Q3 354 398 M $985M
2022 Q2 339 380 M $1.27B
2022 Q1 344 379 M $1.74B
2021 Q4 324 325 M $899M
2021 Q3 304 323 M $1.22B
2021 Q2 314 342 M $1.55B
2021 Q1 303 330 M $1.17B
2020 Q4 279 301 M $792M
2020 Q3 288 294 M $238M
2020 Q2 324 353 M $649M
2020 Q1 351 435 M $537M
2019 Q4 396 436 M $3.01B
2019 Q3 400 440 M $1.97B
2019 Q2 407 449 M $2.88B
2019 Q1 450 436 M $3.80B
2018 Q4 451 465 M $3.23B
2018 Q3 471 382 M $5.34B
2018 Q2 459 337 M $4.53B
2018 Q1 439 340 M $3.36B
2017 Q4 437 293 M $3.12B
2017 Q3 413 289 M $3.11B
2017 Q2 435 268 M $2.21B
2017 Q1 445 268 M $3.34B
2016 Q4 443 250 M $3.68B
2016 Q3 416 253 M $2.70B
2016 Q2 407 266 M $3.17B
2016 Q1 406 275 M $2.52B
2015 Q4 398 261 M $3.24B
2015 Q3 420 259 M $3.34B
2015 Q2 422 231 M $3.72B
2015 Q1 430 233 M $3.44B
2014 Q4 463 250 M $4.57B
2014 Q3 511 242 M $7.74B
2014 Q2 521 225 M $10.1B
2014 Q1 516 221 M $9.13B