Transocean Ltd.
US ˙ NYSE ˙ CH0048265513

SecurityRIG / Transocean Ltd.
InstitutionMoors & Cabot, Inc.
Latest Disclosed Ownership88,100 shares
Latest Disclosed Value $ 584,103
Moors & Cabot, Inc. reports 367.37% increase in ownership of RIG / Transocean Ltd.

On May 8, 2026 - Moors & Cabot, Inc. filed a 13F-HR form disclosing ownership of 88,100 shares of Transocean Ltd. (US:RIG) valued at $584,103 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 18,850 shares of Transocean Ltd.. This represents a change in shares of 367.37% during the quarter. The current value of the position is $544,458 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)
2026-05-08 2026-03-31 13F TRANSOCEAN REGISTERED SHS H8817H100 88,100 69,250 367.37 584 658.44 0.0250
2026-02-10 2025-12-31 13F TRANSOCEAN REGISTERED SHS H8817H100 18,850 1,050 5.90 78 40.00 0.0033
2025-11-14 2025-09-30 13F TRANSOCEAN REGISTERED SHS H8817H100 17,800 -9,550 -34.92 56 -21.43 0.0024
2025-08-06 2025-06-30 13F TRANSOCEAN REGISTERED SHS H8817H100 27,350 3,500 14.68 71 -6.67 0.0033
2025-05-08 2025-03-31 13F TRANSOCEAN REGISTERED SHS H8817H100 23,850 -2,975 -11.09 76 -25.00 0.0038
2025-02-07 2024-12-31 13F TRANSOCEAN REGISTERED SHS H8817H100 26,825 -13,600 -33.64 101 -41.52 0.0048
2024-11-08 2024-09-30 13F TRANSOCEAN REGISTERED SHS H8817H100 40,425 -4,425 -9.87 172 -28.45 0.0085
2024-08-09 2024-06-30 13F TRANSOCEAN REGISTERED SHS H8817H100 44,850 9,900 28.33 240 9.13 0.0128
2024-05-08 2024-03-31 13F TRANSOCEAN REGISTERED SHS H8817H100 34,950 -31,150 -47.13 219 -47.73 0.0119
2024-02-14 2023-12-31 13F TRANSOCEAN REG SHS H8817H100 66,100 -53,900 -44.92 420 -57.46 0.0261
2023-11-08 2023-09-30 13F TRANSOCEAN REG SHS H8817H100 120,000 75,550 169.97 985 216.72 0.0668
2023-08-10 2023-06-30 13F TRANSOCEAN REG SHS H8817H100 44,450 11,925 36.66 312 50.97 0.0207
2023-05-05 2023-03-31 13F TRANSOCEAN REG SHS H8817H100 32,525 1,775 5.77 207 47.14 0.0142
2023-02-10 2022-12-31 13F/A-1 TRANSOCEAN REG SHS H8817H100 30,750 3,625 13.36 140 108.96 0.0098
2023-02-07 2022-12-31 13F TRANSOCEAN REG SHS H8817H100 15,450 -11,675 43 0.0028
2022-11-08 2022-09-30 13F TRANSOCEAN REG SHS H8817H100 27,125 -275 -1.00 67 -26.37 0.0051
2022-08-08 2022-06-30 13F TRANSOCEAN REG SHS H8817H100 27,400 14,100 106.02 91 49.18 0.0065
2022-05-13 2022-03-31 13F TRANSOCEAN REG SHS H8817H100 13,300 -2,150 -13.92 61 41.86 0.0038
2022-02-14 2021-12-31 13F TRANSOCEAN REG SHS H8817H100 15,450 500 3.34 43 -25.86 0.0026
2021-12-08 2021-09-30 13F/A-1 TRANSOCEAN REG SHS H8817H100 14,950 1,153 8.36 58 -6.45 0.0036
2021-11-05 2021-09-30 13F TRANSOCEAN REG SHS H8817H100 1,506 -12,291 251 0.0185
2021-08-10 2021-06-30 13F TRANSOCEAN REG SHS H8817H100 13,797 3,447 33.30 62 63.16 0.0043
2021-05-12 2021-03-31 13F TRANSOCEAN REG SHS H8817H100 10,350 10,350 38 0.0029
2020-01-28 2019-12-31 13F TRANSOCEAN REG SHS H8817H100 0 -13,300 -100.00 0 -100.00
2019-10-22 2019-09-30 13F TRANSOCEAN REG SHS H8817H100 13,300 -750 -5.34 55 -37.50 0.0061
2019-07-18 2019-06-30 13F TRANSOCEAN REG SHS H8817H100 14,050 1,500 11.95 88 -19.27 0.0112
2019-05-06 2019-03-31 13F/A-1 TRANSOCEAN REG SHS H8817H100 12,550 1,800 16.74 109 49.32 0.0148
2019-05-01 2019-03-31 13F TRANSOCEAN REG SHS H8817H100 25,100 14,350 218
2019-02-13 2018-12-31 13F TRANSOCEAN REG SHS H8817H100 10,750 -1,301 -10.80 73 -56.02 0.0115
2018-11-14 2018-09-30 13F TRANSOCEAN REG SHS H8817H100 12,051 900 8.07 166 11.41 0.0203
2018-08-14 2018-06-30 13F TRANSOCEAN REG SHS H8817H100 11,151 -319 -2.78 149 30.70 0.0201
2018-05-18 2018-03-31 13F TRANSOCEAN REG SHS H8817H100 11,470 -325 -2.76 114 -8.80 0.0151
2018-02-13 2017-12-31 13F TRANSOCEAN REG SHS H8817H100 11,795 -75 -0.63 125 -0.79 0.0166
2017-11-16 2017-09-30 13F TRANSOCEAN REG SHS H8817H100 11,870 700 6.27 126 38.46 0.0182
2017-08-15 2017-06-30 13F TRANSOCEAN REG SHS H8817H100 11,170 -200 -1.76 91 -34.06 0.0151
2017-05-15 2017-03-31 13F TRANSOCEAN REG SHS H8817H100 11,370 -17,799 -61.02 138 -67.68 0.0233
2017-02-13 2016-12-31 13F TRANSOCEAN REG SHS H8817H100 29,169 29,169 427 0.0703
2016-11-14 2016-09-30 13F TRANSOCEAN REG SHS H8817H100 0 -11,220 -100.00 0 -100.00
2016-08-08 2016-06-30 13F TRANSOCEAN REG SHS H8817H100 11,220 -18,300 -61.99 134 -50.92 0.0235
2016-05-10 2016-03-31 13F TRANSOCEAN REG SHS H8817H100 29,520 16,900 133.91 273 82.00 0.0493
2016-02-09 2015-12-31 13F TRANSOCEAN REG SHS H8817H100 12,620 -8,246 -39.52 150 -44.44 0.0275
2015-11-17 2015-09-30 13F TRANSOCEAN REG SHS H8817H100 20,866 -997 -4.56 270 -23.30 0.0499
2015-08-17 2015-06-30 13F TRANSOCEAN REG SHS H8817H100 21,863 7,903 56.61 352 77.78 0.0572
2015-05-14 2015-03-31 13F TRANSOCEAN REG SHS H8817H100 13,960 208 1.51 198 -22.35 0.0330
2015-02-17 2014-12-31 13F TRANSOCEAN REG SHS H8817H100 13,752 3,488 33.98 255 -22.02 0.0432
2014-11-12 2014-09-30 13F TRANSOCEAN REG SHS H8817H100 10,264 1,931 23.17 327 -13.26 0.0556
2014-08-11 2014-06-30 13F TRANSOCEAN REG SHS H8817H100 8,333 8,333 377 0.0636
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.