Transocean Ltd.
US ˙ NYSE ˙ CH0048265513

SecurityRIG / Transocean Ltd.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership3,075,885 shares
Latest Disclosed Value $ 20,393,118
Trexquant Investment LP ownership in RIG / Transocean Ltd.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 3,075,885 shares of Transocean Ltd. (US:RIG) valued at $20,393,118 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 13, 2024 disclosing 0 shares of Transocean Ltd.. The current value of the position is $18,301,516 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 3,075,885 3,075,885 20,393 0.1465
2024-08-13 2024-06-30 13F TRANSOCEAN REGISTERED SHS H8817H100 0 -851,777 -100.00 0 -100.00
2024-05-14 2024-03-31 13F TRANSOCEAN REGISTERED SHS H8817H100 851,777 851,777 5,349 0.1066
2023-11-13 2023-09-30 13F TRANSOCEAN REG SHS H8817H100 0 -503,152 -100.00 0 -100.00
2023-08-11 2023-06-30 13F TRANSOCEAN REG SHS H8817H100 503,152 503,152 3,527 0.0925
2020-05-08 2020-03-31 13F TRANSOCEAN REG SHS H8817H100 0 -206,114 -100.00 0 -100.00
2020-02-12 2019-12-31 13F TRANSOCEAN REG SHS H8817H100 206,114 206,114 1,418 0.0839
2019-05-13 2019-03-31 13F TRANSOCEAN REG SHS H8817H100 0 -255,175 -100.00 0 -100.00
2019-02-13 2018-12-31 13F TRANSOCEAN REG SHS H8817H100 255,175 255,175 1,771 0.1107
2018-11-09 2018-09-30 13F TRANSOCEAN REG SHS H8817H100 0 -189,337 -100.00 0 -100.00
2018-08-07 2018-06-30 13F TRANSOCEAN REG SHS H8817H100 189,337 189,337 2,545 0.1763
2018-05-03 2018-03-31 13F TRANSOCEAN REG SHS H8817H100 0 -198,620 -100.00 0 -100.00
2018-02-08 2017-12-31 13F TRANSOCEAN REG SHS H8817H100 198,620 80,777 68.55 2,121 67.27 0.2329
2017-11-09 2017-09-30 13F TRANSOCEAN REG SHS H8817H100 117,843 83,343 241.57 1,268 346.48 0.3194
2017-08-01 2017-06-30 13F TRANSOCEAN REG SHS H8817H100 34,500 34,500 284 0.0777
2016-08-10 2016-06-30 13F TRANSOCEAN REG SHS H8817H100 0 -208,506 -100.00 0 -100.00
2016-05-11 2016-03-31 13F TRANSOCEAN REG SHS H8817H100 208,506 208,506 1,906 0.2233
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.