Transocean Ltd.
US ˙ NYSE ˙ CH0048265513

SecurityRIG / Transocean Ltd.
InstitutionWellington Shields & Co., LLC
Latest Disclosed Ownership30,423 shares
Latest Disclosed Value $ 201,704
Wellington Shields & Co., LLC ownership in RIG / Transocean Ltd.

On May 4, 2026 - Wellington Shields & Co., LLC filed a 13F-HR form disclosing ownership of 30,423 shares of Transocean Ltd. (US:RIG) valued at $201,704 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 30,423 shares of Transocean Ltd.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $181,017 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)
2026-05-04 2026-03-31 13F TRANSOCEAN LTD REGISTERED SHS Stock H8817H100 30,423 0 0.00 202 60.80 0.0514
2026-02-09 2025-12-31 13F TRANSOCEAN LTD REGISTERED SHS Stock H8817H100 30,423 -2,900 -8.70 126 21.36 0.0310
2025-11-05 2025-09-30 13F TRANSOCEAN LTD REGISTERED SHS Stock H8817H100 33,323 0 0.00 104 19.77 0.0271
2025-08-05 2025-06-30 13F TRANSOCEAN LTD REGISTERED SHS Stock H8817H100 33,323 0 0.00 86 -18.10 0.0244
2025-05-08 2025-03-31 13F TRANSOCEAN LTD REGISTERED SHS Stock H8817H100 33,323 0 0.00 106 -15.32 0.0331
2025-02-10 2024-12-31 13F TRANSOCEAN LTD REGISTERED SHS Stock H8817H100 33,323 0 0.00 125 -12.06 0.0383
2024-11-13 2024-09-30 13F TRANSOCEAN LTD REGISTERED SHS Stock H8817H100 33,323 0 0.00 142 -20.79 0.0431
2024-08-07 2024-06-30 13F TRANSOCEAN LTD REGISTERED SHS Stock H8817H100 33,323 0 0.00 178 -14.83 0.0581
2024-05-23 2024-03-31 13F/A-2 TRANSOCEAN LTD REGISTERED SHS Stock H8817H100 33,323 -23 -0.07 209 -0.95 0.0701
2024-05-23 2024-03-31 13F/A-1 TRANSOCEAN LTD REGISTERED SHS Stock H8817H100 33,346 0 212 0.0781
2024-05-03 2024-03-31 13F TRANSOCEAN LTD REGISTERED SHS Stock H8817H100 33,323 -23 209 0.0701
2024-05-23 2023-12-31 13F/A-1 TRANSOCEAN LTD REGISTERED SHS Stock H8817H100 33,346 -500 -1.48 212 -23.83 0.0781
2024-02-09 2023-12-31 13F TRANSOCEAN LTD REGISTERED SHS Stock H8817H100 33,346 -500 212 0.0503
2023-11-14 2023-09-30 13F TRANSOCEAN LTD REG SHS Stock H8817H100 33,846 400 1.20 278 18.38 0.0695
2023-08-11 2023-06-30 13F TRANSOCEAN LTD REG SHS Stock H8817H100 33,446 0 0.00 234 10.38 0.0551
2023-05-11 2023-03-31 13F TRANSOCEAN LTD REG SHS Stock H8817H100 33,446 0 0.00 213 39.47 0.0477
2023-02-15 2022-12-31 13F TRANSOCEAN LTD REG SHS Stock H8817H100 33,446 0 0.00 153 83.13 0.0347
2022-11-14 2022-09-30 13F TRANSOCEAN LTD REG SHS Stock H8817H100 33,446 0 0.00 83 -25.23 0.0362
2022-08-12 2022-06-30 13F TRANSOCEAN LTD REG SHS Stock H8817H100 33,446 -250 -0.74 111 -27.92 0.0269
2022-05-09 2022-03-31 13F TRANSOCEAN COM H8817H100 33,696 -1,450 -4.13 154 58.76 0.0507
2022-02-15 2021-12-31 13F TRANSOCEAN COM H8817H100 35,146 -4,877 -12.19 97 -36.18 0.0194
2021-11-10 2021-09-30 13F TRANSOCEAN COM H8817H100 40,023 -500 -1.23 152 -16.94 0.0530
2021-08-12 2021-06-30 13F TRANSOCEAN COM H8817H100 40,523 -6,400 -13.64 183 9.58 0.0604
2021-05-12 2021-03-31 13F TRANSOCEAN COM H8817H100 46,923 -2,400 -4.87 167 46.49 0.0598
2021-02-09 2020-12-31 13F TRANSOCEAN COM H8817H100 49,323 -7,000 -12.43 114 153.33 0.0408
2020-11-10 2020-09-30 13F TRANSOCEAN COM H8817H100 56,323 -2,100 -3.59 45 -57.94 0.0189
2020-08-05 2020-06-30 13F TRANSOCEAN COM H8817H100 58,423 -800 -1.35 107 55.07 0.0469
2020-05-07 2020-03-31 13F TRANSOCEAN COM H8817H100 59,223 2,800 4.96 69 -82.22 0.0380
2020-02-11 2019-12-31 13F TRANSOCEAN COM H8817H100 56,423 56,423 388 0.1720
2019-11-05 2019-09-30 13F TRANSOCEAN COM H8817H100 0 -51,300 -100.00 0 -100.00
2019-08-08 2019-06-30 13F TRANSOCEAN COM H8817H100 51,300 -300 -0.58 329 -26.73 0.1552
2019-05-10 2019-03-31 13F TRANSOCEAN COM H8817H100 51,600 6,300 13.91 449 42.99 0.2287
2019-02-11 2018-12-31 13F TRANSOCEAN COM H8817H100 45,300 45,300 314 0.1797
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.