Transocean Ltd.
US ˙ NYSE ˙ CH0048265513

SecurityRIG / Transocean Ltd.
InstitutionQuadrant Capital Group Llc
Latest Disclosed Ownership20,536 shares
Latest Disclosed Value $ 136,154
Quadrant Capital Group Llc ownership in RIG / Transocean Ltd.

On May 13, 2026 - Quadrant Capital Group Llc filed a 13F-HR/A form disclosing ownership of 20,536 shares of Transocean Ltd. (US:RIG) valued at $136,154 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 20,536 shares of Transocean Ltd.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $128,453 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)
2026-05-13 2026-03-31 13F/A-1 TRANSOCEAN REGISTERED SHS H8817H100 20,536 0 0.00 136 61.90 0.0041
2026-05-11 2026-03-31 13F TRANSOCEAN REGISTERED SHS H8817H100 20,536 0 49 0.0369
2026-02-12 2025-12-31 13F TRANSOCEAN REGISTERED SHS H8817H100 20,536 552 2.76 85 35.48 0.0026
2025-11-13 2025-09-30 13F TRANSOCEAN REGISTERED SHS H8817H100 19,984 -437 -2.14 62 19.23 0.0020
2025-08-13 2025-06-30 13F TRANSOCEAN REGISTERED SHS H8817H100 20,421 -8,932 -30.43 53 -44.09 0.0019
2025-05-13 2025-03-31 13F TRANSOCEAN REGISTERED SHS H8817H100 29,353 27,010 1,152.80 93 1,062.50 0.0035
2025-02-13 2024-12-31 13F TRANSOCEAN REGISTERED SHS H8817H100 2,343 1,999 581.10 9 700.00 0.0006
2024-11-12 2024-09-30 13F TRANSOCEAN REGISTERED SHS H8817H100 344 313 1,009.68 1 0.0001
2024-08-12 2024-06-30 13F TRANSOCEAN REGISTERED SHS H8817H100 31 -460 -93.69 0 -100.00 0.0000
2024-05-15 2024-03-31 13F TRANSOCEAN REGISTERED SHS H8817H100 491 491 3 0.0002
2022-11-10 2022-09-30 13F TRANSOCEAN REG SHS H8817H100 0 -42 -100.00 0 0.0000
2022-08-09 2022-06-30 13F TRANSOCEAN REG SHS H8817H100 42 0 0.00 0 0.0000
2022-05-06 2022-03-31 13F TRANSOCEAN REG SHS H8817H100 42 0 0.00 0 0.0000
2022-02-01 2021-12-31 13F TRANSOCEAN REG SHS H8817H100 42 -162 -79.41 0 -100.00
2021-11-12 2021-09-30 13F TRANSOCEAN REG SHS H8817H100 204 -136 -40.00 1 -50.00 0.0001
2021-08-09 2021-06-30 13F TRANSOCEAN REG SHS H8817H100 340 138 68.32 2 100.00 0.0003
2021-05-12 2021-03-31 13F TRANSOCEAN REG SHS H8817H100 202 202 1 0.0002
2020-11-13 2020-09-30 13F TRANSOCEAN REG SHS H8817H100 0 -9,429 -100.00 0 -100.00
2020-08-13 2020-06-30 13F TRANSOCEAN REG SHS H8817H100 9,429 -835 -8.14 17 41.67 0.0038
2020-05-15 2020-03-31 13F Transocean Com H8817H100 10,264 1,384 15.59 12 -78.95 0.0020
2020-03-19 2019-12-31 13F/A-1 Transocean Com H8817H100 8,880 4,840 119.80 57 256.25 0.0069
2020-02-03 2019-12-31 13F Transocean Com H8817H100 8,880 4,840 57 192.6104
2019-10-24 2019-09-30 13F Transocean COM H8817H100 4,040 3,588 793.81 16 700.00 0.0025
2019-07-24 2019-06-30 13F Transocean COM H8817H100 452 0 0.00 2 -33.33 0.0003
2019-04-29 2019-03-31 13F Transocean COM H8817H100 452 0 0.00 3 0.00 0.0005
2019-01-17 2018-12-31 13F TRANSOCEAN COM H8817H100 452 452 3 0.0008
2017-10-13 2017-09-30 13F Transocean Sedco Forex COM H8817H100 0 -24 -100.00 0 0.0000
2017-08-14 2017-06-30 13F Transocean Sedco Forex COM H8817H100 24 24 0 0.0000
2016-10-25 2016-09-30 13F Transocean Sedco Forex COM H8817H100 0 -233 -100.00 0 -100.00
2016-07-28 2016-06-30 13F Transocean Sedco Forex COM H8817H100 233 182 356.86 2 0.0014
2016-04-27 2016-03-31 13F Transocean Sedco Forex COM H8817H100 51 -2,705 -98.15 0 -100.00
2016-01-28 2015-12-31 13F Transocean Sedco Forex COM H8817H100 2,756 2,756 34 0.0235
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.