Transocean Ltd.
US ˙ NYSE ˙ CH0048265513

SecurityRIG / Transocean Ltd.
InstitutionFirst Trust Advisors Lp
Latest Disclosed Ownership958,406 shares
Latest Disclosed Value $ 6,354,231
First Trust Advisors Lp reports 3,072.48% increase in ownership of RIG / Transocean Ltd.

On May 13, 2026 - First Trust Advisors Lp filed a 13F-HR form disclosing ownership of 958,406 shares of Transocean Ltd. (US:RIG) valued at $6,354,232 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 30,210 shares of Transocean Ltd.. This represents a change in shares of 3,072.48% during the quarter. The current value of the position is $5,702,516 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F TRANSOCEAN REGISTERED SHS H8817H100 958,406 928,196 3,072.48 6,354 5,024.19 0.0045
2026-02-13 2025-12-31 13F TRANSOCEAN REGISTERED SHS H8817H100 30,210 -262,186 -89.67 125 -86.40 0.0001
2025-11-12 2025-09-30 13F TRANSOCEAN REGISTERED SHS H8817H100 292,396 -161,073 -35.52 912 -22.32 0.0007
2025-08-13 2025-06-30 13F TRANSOCEAN REGISTERED SHS H8817H100 453,469 105,841 30.45 1,174 6.63 0.0009
2025-05-14 2025-03-31 13F TRANSOCEAN REGISTERED SHS H8817H100 347,628 -583,223 -62.65 1,102 -68.45 0.0010
2025-02-13 2024-12-31 13F TRANSOCEAN REGISTERED SHS H8817H100 930,851 316,362 51.48 3,491 33.67 0.0031
2024-11-13 2024-09-30 13F TRANSOCEAN REGISTERED SHS H8817H100 614,489 614,489 2,612 0.0025
2024-05-13 2024-03-31 13F TRANSOCEAN REG SHS H8817H100 0 -639,989 -100.00 0 -100.00
2024-02-13 2023-12-31 13F TRANSOCEAN REG SHS H8817H100 639,989 639,989 4,064 0.0044
2023-11-13 2023-09-30 13F TRANSOCEAN REG SHS H8817H100 0 -177,955 -100.00 0 -100.00
2023-08-14 2023-06-30 13F TRANSOCEAN REG SHS H8817H100 177,955 -692,735 -79.56 1,247 -77.48 0.0014
2023-05-15 2023-03-31 13F TRANSOCEAN REG SHS H8817H100 870,690 -144,553 -14.24 5,538 19.62 0.0064
2023-02-09 2022-12-31 13F TRANSOCEAN REG SHS H8817H100 1,015,243 -615,981 -37.76 4,630 14.89 0.0055
2022-11-14 2022-09-30 13F TRANSOCEAN REG SHS H8817H100 1,631,224 -336,141 -17.09 4,029 -38.50 0.0052
2022-08-12 2022-06-30 13F TRANSOCEAN REG SHS H8817H100 1,967,365 -216,728 -9.92 6,551 -34.37 0.0081
2022-05-13 2022-03-31 13F TRANSOCEAN REG SHS H8817H100 2,184,093 -1,509,908 -40.87 9,981 -2.10 0.0102
2022-02-08 2021-12-31 13F TRANSOCEAN REG SHS H8817H100 3,694,001 2,743,398 288.60 10,195 182.96 0.0099
2021-11-15 2021-09-30 13F TRANSOCEAN REG SHS H8817H100 950,603 -301,538 -24.08 3,603 -36.34 0.0039
2021-10-12 2021-06-30 13F/A-1 TRANSOCEAN REG SHS H8817H100 1,252,141 -717,068 -36.41 5,660 -19.04 0.0061
2021-08-16 2021-06-30 13F TRANSOCEAN REG SHS H8817H100 1,252,141 -717,068 5,660 0.0058
2021-05-14 2021-03-31 13F TRANSOCEAN REG SHS H8817H100 1,969,209 1,597,462 429.72 6,991 713.85 0.0085
2021-02-02 2020-12-31 13F TRANSOCEAN REG SHS H8817H100 371,747 287,617 341.87 859 1,163.24 0.0011
2020-11-05 2020-09-30 13F TRANSOCEAN REG SHS H8817H100 84,130 28,303 50.70 68 -33.33 0.0001
2020-07-22 2020-06-30 13F TRANSOCEAN REG SHS H8817H100 55,827 55,827 102 0.0002
2019-06-19 2019-03-31 13F/A-1 TRANSOCEAN REG SHS H8817H100 0 -31,619 -100.00 0 -100.00
2019-02-07 2018-12-31 13F TRANSOCEAN REG SHS H8817H100 31,619 -2,263 -6.68 219 -53.70 0.0005
2018-10-25 2018-09-30 13F TRANSOCEAN REG SHS H8817H100 33,882 33,882 473 0.0009
2018-02-08 2017-12-31 13F TRANSOCEAN REG SHS H8817H100 0 -1,613,054 -100.00 0 -100.00
2017-10-24 2017-09-30 13F TRANSOCEAN REG SHS H8817H100 1,613,054 370,203 29.79 17,356 69.67 0.0446
2017-08-02 2017-06-30 13F TRANSOCEAN REG SHS H8817H100 1,242,851 -397,739 -24.24 10,229 -49.92 0.0273
2017-05-02 2017-03-31 13F TRANSOCEAN REG SHS H8817H100 1,640,590 -3,239,630 -66.38 20,425 -71.61 0.0566
2017-02-06 2016-12-31 13F TRANSOCEAN REG SHS H8817H100 4,880,220 739,895 17.87 71,934 62.98 0.2141
2016-11-01 2016-09-30 13F TRANSOCEAN REG SHS H8817H100 4,140,325 4,140,325 0.00 44,136 0.1318
2016-08-04 2016-06-30 13F TRANSOCEAN REG SHS H8817H100 0 -454,073 -100.00 0 -100.00
2016-05-10 2016-03-31 13F TRANSOCEAN REG SHS H8817H100 454,073 454,073 0.00 4,150 0.0133
2015-05-04 2015-03-31 13F TRANSOCEAN REG SHS H8817H100 0 -594,672 -100.00 0 -100.00
2015-02-13 2014-12-31 13F TRANSOCEAN REG SHS H8817H100 594,672 202,852 51.77 10,900 -12.98 0.0368
2014-11-12 2014-09-30 13F TRANSOCEAN REG SHS H8817H100 391,820 32,222 8.96 12,526 -22.65 0.0493
2014-08-11 2014-06-30 13F TRANSOCEAN REG SHS H8817H100 359,598 135,878 60.74 16,193 75.08 0.0673
2014-05-12 2014-03-31 13F TRANSOCEAN REG SHS H8817H100 223,720 207,633 1,290.69 9,249 1,063.40 0.0406
2014-08-08 2013-12-31 13F/A-1 TRANSOCEAN REG SHS H8817H100 16,087 3,534 28.15 795 42.22 0.0039
2014-02-13 2013-12-31 13F TRANSOCEAN REG SHS H8817H100 16,087 795
2013-11-12 2013-09-30 13F TRANSOCEAN REG SHS H8817H100 12,553 12,553 559 0.0030
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.