Transocean Ltd.
US ˙ NYSE ˙ CH0048265513

SecurityRIG / Transocean Ltd.
InstitutionGlenorchy Capital Ltd
Latest Disclosed Ownership750,502 shares
Latest Disclosed Value $ 4,975,835
Glenorchy Capital Ltd reports 8.49% increase in ownership of RIG / Transocean Ltd.

On May 14, 2026 - Glenorchy Capital Ltd filed a 13F-HR form disclosing ownership of 750,502 shares of Transocean Ltd. (US:RIG) valued at $4,975,828 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 691,779 shares of Transocean Ltd.. This represents a change in shares of 8.49% during the quarter. The current value of the position is $4,465,487 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)
2026-05-14 2026-03-31 13F TRANSOCEAN REGISTERED SHS H8817H100 750,502 58,723 8.49 4,976 74.13 0.2901
2026-01-30 2025-12-31 13F TRANSOCEAN REGISTERED SHS H8817H100 691,779 21,604 3.22 2,857 36.70 0.1733
2025-10-30 2025-09-30 13F TRANSOCEAN REGISTERED SHS H8817H100 670,175 -823 -0.12 2,091 20.32 0.3075
2025-08-14 2025-06-30 13F TRANSOCEAN REGISTERED SHS H8817H100 670,998 14,231 2.17 1,738 -16.53 0.2592
2025-08-15 2025-03-31 13F/A-1 TRANSOCEAN REGISTERED SHS H8817H100 656,767 33,551 5.38 2,082 -10.95 1.2790
2025-05-13 2025-03-31 13F TRANSOCEAN REGISTERED SHS H8817H100 656,767 33,551 2,082 1.5512
2025-02-14 2024-12-31 13F TRANSOCEAN REGISTERED SHS H8817H100 623,216 36,997 6.31 2,337 -6.18 1.3681
2024-10-18 2024-09-30 13F TRANSOCEAN REGISTERED SHS H8817H100 586,219 148,755 34.00 2,491 6.45 0.7802
2024-07-30 2024-06-30 13F TRANSOCEAN REGISTERED SHS H8817H100 437,464 91,135 26.31 2,340 7.64 0.7259
2024-05-15 2024-03-31 13F TRANSOCEAN REGISTERED SHS H8817H100 346,329 34,756 11.16 2,175 9.91 0.7667
2024-02-02 2023-12-31 13F TRANSOCEAN REG SHS H8817H100 311,573 311,573 1,978 0.7666
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.