Transocean Ltd.
US ˙ NYSE ˙ CH0048265513

SecurityRIG / Transocean Ltd.
InstitutionVan Eck Associates Corp
Latest Disclosed Ownership21,137,129 shares
Latest Disclosed Value $ 140,140
Van Eck Associates Corp reports 25.64% increase in ownership of RIG / Transocean Ltd.

On May 15, 2026 - Van Eck Associates Corp filed a 13F-HR form disclosing ownership of 21,137,129 shares of Transocean Ltd. (US:RIG) valued at $140,139,165 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 16,824,069 shares of Transocean Ltd.. This represents a change in shares of 25.64% during the quarter. The current value of the position is $130,627,457 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)
2026-05-15 2026-03-31 13F Transocean REGISTERED SHS H8817H100 21,137,129 4,313,060 25.64 140 102.90 0.0918
2026-02-13 2025-12-31 13F Transocean REGISTERED SHS H8817H100 16,824,069 2,133,778 14.53 69 53.33 0.0574
2025-11-13 2025-09-30 13F Transocean REGISTERED SHS H8817H100 14,690,291 884,924 6.41 46 28.57 0.0426
2025-08-14 2025-06-30 13F Transocean REGISTERED SHS H8817H100 13,805,367 -1,158,858 -7.74 36 -25.53 0.0405
2025-05-15 2025-03-31 13F Transocean REGISTERED SHS H8817H100 14,964,225 -429,648 -2.79 47 -17.54 0.0613
2025-01-29 2024-12-31 13F Transocean REGISTERED SHS H8817H100 15,393,873 3,895,880 33.88 58 21.28 0.0739
2024-10-29 2024-09-30 13F Transocean REGISTERED SHS H8817H100 11,497,993 -3,551,775 -23.60 47 -41.25 0.0590
2024-07-31 2024-06-30 13F Transocean REGISTERED SHS H8817H100 15,049,768 -1,964,196 -11.54 81 -24.53 0.1144
2024-04-30 2024-03-31 13F Transocean REGISTERED SHS H8817H100 17,013,964 1,105,747 6.95 107 4.95 0.1615
2024-02-05 2023-12-31 13F Transocean REG SHS H8817H100 15,908,217 1,616,690 11.31 101 -13.68 0.1838
2023-11-08 2023-09-30 13F Transocean REG SHS H8817H100 14,291,527 -590,901 -3.97 117 12.50 0.2575
2023-08-03 2023-06-30 13F Transocean REG SHS H8817H100 14,882,428 -2,130,062 -12.52 104 -3.70 0.2283
2023-05-03 2023-03-31 13F Transocean REG SHS H8817H100 17,012,490 -8,118,817 -32.31 108 -5.26 0.2463
2023-02-08 2022-12-31 13F Transocean REG SHS H8817H100 25,131,307 -227,699 -0.90 115 -99.82 0.2961
2022-10-27 2022-09-30 13F Transocean REG SHS H8817H100 25,359,006 -7,787,242 -23.49 62,637 -43.25 0.1864
2022-08-03 2022-06-30 13F Transocean REG SHS H8817H100 33,146,248 -1,743,414 -5.00 110,377 -30.77 0.2926
2022-05-10 2022-03-31 13F Transocean REG SHS H8817H100 34,889,662 2,413,968 7.43 159,446 77.89 0.3291
2022-01-26 2021-12-31 13F Transocean REG SHS H8817H100 32,475,694 1,578,901 5.11 89,633 -23.46 0.2074
2021-11-03 2021-09-30 13F Transocean REG SHS H8817H100 30,896,793 -2,289,617 -6.90 117,099 -21.94 0.2944
2021-08-10 2021-06-30 13F Transocean REG SHS H8817H100 33,186,410 19,639,323 144.97 150,003 211.91 0.3549
2021-05-13 2021-03-31 13F Transocean REG SHS H8817H100 13,547,087 -504,130 -3.59 48,092 48.17 0.1308
2021-02-09 2020-12-31 13F Transocean REG SHS H8817H100 14,051,217 1,946,256 16.08 32,458 232.32 0.0945
2020-12-04 2020-09-30 13F/A-1 Transocean REG SHS H8817H100 12,104,961 1,414,373 13.23 9,767 -50.08 0.0311
2020-11-12 2020-09-30 13F Transocean REG SHS H8817H100 12,104,961 1,414,373 9,767 31,086.5505
2020-08-14 2020-06-30 13F/A-1 Transocean REG SHS H8817H100 10,690,588 619,342 6.15 19,564 67.46 0.0681
2020-08-10 2020-06-30 13F Transocean REG SHS H8817H100 10,690,588 619,342 19,564 66,463.8258
2020-05-12 2020-03-31 13F Transocean REG SHS H8817H100 10,071,246 2,135,587 26.91 11,683 -78.60 0.0593
2020-02-13 2019-12-31 13F Transocean REG SHS H8817H100 7,935,659 309,613 4.06 54,597 60.16 0.2109
2019-11-08 2019-09-30 13F Transocean REG SHS H8817H100 7,626,046 -796,572 -9.46 34,088 -36.86 0.1597
2019-08-07 2019-06-30 13F Transocean REG SHS H8817H100 8,422,618 1,191,378 16.48 53,989 -14.28 0.2601
2019-05-13 2019-03-31 13F Transocean REG SHS H8817H100 7,231,240 -2,395,987 -24.89 62,984 -5.73 0.3094
2019-02-12 2018-12-31 13F Transocean REG SHS H8817H100 9,627,227 1,261,299 15.08 66,813 -42.75 0.3351
2018-11-13 2018-09-30 13F Transocean REG SHS H8817H100 8,365,928 2,741,072 48.73 116,705 54.38 0.5692
2018-08-13 2018-06-30 13F Transocean REG SHS H8817H100 5,624,856 -2,250,894 -28.58 75,598 -3.04 0.3534
2018-05-11 2018-03-31 13F Transocean REG SHS H8817H100 7,875,750 1,183,164 17.68 77,970 9.08 0.3875
2018-02-12 2017-12-31 13F Transocean REG SHS H8817H100 6,692,586 739,184 12.42 71,477 11.58 0.3525
2017-11-09 2017-09-30 13F Transocean REG SHS H8817H100 5,953,402 356,048 6.36 64,059 39.06 0.3272
2017-08-11 2017-06-30 13F Transocean REG SHS H8817H100 5,597,354 1,033,045 22.63 46,066 -18.93 0.2518
2017-05-11 2017-03-31 13F Transocean REG SHS H8817H100 4,564,309 762,244 20.05 56,826 1.40 0.2505
2017-02-09 2016-12-31 13F Transocean REG SHS H8817H100 3,802,065 -486,931 -11.35 56,042 22.57 0.2792
2016-11-14 2016-09-30 13F Transocean REG SHS H8817H100 4,288,996 835,086 24.18 45,721 11.33 0.2128
2016-08-12 2016-06-30 13F Transocean REG SHS H8817H100 3,453,910 363,818 11.77 41,067 45.41 0.2104
2016-05-13 2016-03-31 13F Transocean REG SHS H8817H100 3,090,092 -308,378 -9.07 28,243 -32.87 0.1902
2016-02-12 2015-12-31 13F Transocean REG SHS H8817H100 3,398,470 478,966 16.41 42,073 11.54 0.3338
2015-11-12 2015-09-30 13F Transocean REG SHS H8817H100 2,919,504 519,940 21.67 37,720 -2.48 0.2898
2015-08-12 2015-06-30 13F Transocean REG SHS H8817H100 2,399,564 -32,478 -1.34 38,681 8.42 0.2288
2015-05-14 2015-03-31 13F Transocean REG SHS H8817H100 2,432,042 780,276 47.24 35,678 17.84 0.2060
2015-02-13 2014-12-31 13F Transocean REG SHS H8817H100 1,651,766 135,323 8.92 30,277 -37.55 0.1882
2014-11-14 2014-09-30 13F Transocean REG SHS H8817H100 1,516,443 2,277 0.15 48,481 -28.90 0.2568
2014-08-14 2014-06-30 13F TRANSOCEAN REG SHS H8817H100 1,514,166 58,498 4.02 68,183 13.30 0.3146
2014-05-08 2014-03-31 13F TRANSOCEAN REG SHS H8817H100 1,455,668 -20,683 -1.40 60,177 -17.52 0.2987
2014-02-12 2013-12-31 13F TRANSOCEAN REG SHS H8817H100 1,476,351 -163,273 -9.96 72,961 0.00 0.3684
2013-11-14 2013-09-30 13F TRANSOCEAN REG SHS H8817H100 1,639,624 54,267 3.42 72,963 -4.02 0.3713
2013-08-14 2013-06-30 13F TRANSOCEAN REG SHS H8817H100 1,585,357 1,585,357 76,018 0.4142
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.