Transocean Ltd.
US ˙ NYSE ˙ CH0048265513

SecurityRIG / Transocean Ltd.
InstitutionSILVER OAK SECURITIES, Inc
Latest Disclosed Ownership25,526 shares
Latest Disclosed Value $ 169,237
SILVER OAK SECURITIES, Inc ownership in RIG / Transocean Ltd.

On April 20, 2026 - SILVER OAK SECURITIES, Inc filed a 13F-HR form disclosing ownership of 25,526 shares of Transocean Ltd. (US:RIG) valued at $169,237 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 25,526 shares of Transocean Ltd.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $151,880 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)
2026-04-20 2026-03-31 13F TRANSOCEAN REGISTERED SHS H8817H100 25,526 0 0.00 169 60.95 0.0124
2026-01-15 2025-12-31 13F TRANSOCEAN REGISTERED SHS H8817H100 25,526 -3,201 -11.14 105 17.98 0.0071
2025-10-21 2025-09-30 13F TRANSOCEAN REGISTERED SHS H8817H100 28,727 13,000 82.66 90 122.50 0.0067
2025-07-11 2025-06-30 13F TRANSOCEAN REGISTERED SHS H8817H100 15,727 0 0.00 41 -20.00 0.0033
2025-04-29 2025-03-31 13F/A-1 TRANSOCEAN REGISTERED SHS H8817H100 15,727 0 0.00 50 -12.28 0.0046
2025-04-21 2025-03-31 13F TRANSOCEAN REGISTERED SHS H8817H100 15,727 0 50 0.0008
2025-01-27 2024-12-31 13F TRANSOCEAN REGISTERED SHS H8817H100 15,727 -8,000 -33.72 58 -44.12 0.0053
2024-10-23 2024-09-30 13F TRANSOCEAN REGISTERED SHS H8817H100 23,727 200 0.85 102 -18.40 0.0108
2024-07-12 2024-06-30 13F TRANSOCEAN REGISTERED SHS H8817H100 23,527 -3,000 -11.31 126 -24.70 0.0189
2024-05-10 2024-03-31 13F TRANSOCEAN REG SHS H8817H100 26,527 9,800 58.59 167 56.60 0.0255
2024-02-05 2023-12-31 13F TRANSOCEAN REG SHS H8817H100 16,727 -65,788 -79.73 106 -84.34 0.0143
2023-11-20 2023-09-30 13F/A-2 TRANSOCEAN REG SHS H8817H100 82,515 -173,962 -67.83 677 67,600.00 0.1473
2023-10-20 2023-09-30 13F/A-1 TRANSOCEAN REG SHS H8817H100 256,477 0 2 0.2892
2023-10-18 2023-09-30 13F TRANSOCEAN REG SHS H8817H100 256,477 0 2 0.2892
2023-08-02 2023-06-30 13F TRANSOCEAN REG SHS H8817H100 256,477 5,700 2.27 2 0.00 0.2892
2023-05-05 2023-03-31 13F TransOcean REG SHS H8817H100 250,777 2,500 1.01 2 0.00 0.2618
2023-02-02 2022-12-31 13F TransOcean REG SHS H8817H100 248,277 165,762 200.89 1 -99.85 0.2125
2023-10-23 2022-09-30 13F/A-2 TRANSOCEAN REG SHS H8817H100 82,515 -164,712 -66.62 677 5.78 0.1473
2022-10-20 2022-09-30 13F TransOcean REG SHS H8817H100 248,227 1,000 613 0.1367
2022-08-15 2022-06-30 13F TransOcean REG SHS H8817H100 247,227 37,960 18.14 640 -31.26 0.1434
2022-05-10 2022-03-31 13F TRANSOCEAN REG SHS H8817H100 209,267 209,267 931 0.1892
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.