Transocean Ltd.
US ˙ NYSE ˙ CH0048265513

SecurityRIG / Transocean Ltd.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership251,213 shares
Latest Disclosed Value $ 1,665,495
Advisor Group Holdings, Inc. ownership in RIG / Transocean Ltd.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 251,213 shares of Transocean Ltd. (US:RIG) valued at $1,665,542 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 216,784 shares of Transocean Ltd.. This represents a change in shares of 15.88% during the quarter. The current value of the position is $1,552,496 USD.

Advisor Group Holdings, Inc. has a history of taking positions in derivatives of the underlying security (RIG) in the form of stock options. The firm currently holds call options representing 10 of underlying shares valued at $3,550 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

RIG / Transocean Ltd. Historical Put/Call Ratio
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 251,213 34,429 15.88 1,665 86.03 0.0014
2026-02-17 2025-12-31 13F TRANSOCEAN REGISTERED SHS H8817H100 216,784 -3,988 -1.81 895 31.23 0.0013
2025-11-14 2025-09-30 13F TRANSOCEAN REGISTERED SHS H8817H100 220,772 30,860 16.25 682 38.90 0.0010
2025-09-04 2025-06-30 13F/A-1 RANSOCEAN REGISTERED SHS H8817H100 189,912 93,311 96.59 492 60.46 0.0009
2025-08-13 2025-06-30 13F RANSOCEAN REGISTERED SHS H8817H100 62,263 -34,338 230 0.0003
2025-05-12 2025-03-31 13F TRANSOCEAN REGISTERED SHS H8817H100 96,601 26,875 38.54 306 17.24 0.0007
2025-06-06 2024-12-31 13F/A-1 TRANSOCEAN REGISTERED SHS H8817H100 69,726 -50,870 -42.18 261 -49.02 0.0006
2025-02-07 2024-12-31 13F TRANSOCEAN REGISTERED SHS H8817H100 110,563 -10,033 464 0.0012
2024-11-13 2024-09-30 13F TRANSOCEAN REGISTERED SHS H8817H100 120,596 4,853 4.19 513 -17.29 0.0012
2024-08-13 2024-06-30 13F TRANSOCEAN REGISTERED SHS H8817H100 115,743 -11,208 -8.83 619 -22.33 0.0015
2024-05-10 2024-03-31 13F TRANSOCEAN REGISTERED SHS H8817H100 126,951 -64,401 -33.66 797 -34.40 0.0018
2024-02-12 2023-12-31 13F TRANSOCEAN REG SHS H8817H100 191,352 -70,094 -26.81 1,215 -43.38 0.0021
2023-11-13 2023-09-30 13F TRANSOCEAN REG SHS H8817H100 261,446 82,533 46.13 2,146 70.45 0.0032
2023-08-21 2023-06-30 13F/A-1 TRANSOCEAN REG SHS H8817H100 178,913 7,577 4.42 1,259 15.61 0.0023
2023-08-10 2023-06-30 13F TRANSOCEAN REG SHS H8817H100 178,913 7,577 1,259 0.0003
2023-05-12 2023-03-31 13F TRANSOCEAN REG SHS H8817H100 171,336 -214,764 -55.62 1,090 -38.12 0.0021
2023-02-10 2022-12-31 13F TRANSOCEAN REG SHS H8817H100 386,100 -4,286 -1.10 1,761 82.38 0.0036
2022-11-14 2022-09-30 13F TRANSOCEAN REG SHS H8817H100 390,386 246,794 171.87 965 101.88 0.0022
2022-08-10 2022-06-30 13F TRANSOCEAN REG SHS H8817H100 143,592 1,067 0.75 478 -26.69 0.0011
2022-05-04 2022-03-31 13F TRANSOCEAN REG SHS H8817H100 142,525 -7,553 -5.03 652 55.98 0.0013
2022-02-03 2021-12-31 13F TRANSOCEAN REG SHS H8817H100 150,078 -109,860 -42.26 418 -57.56 0.0008
2021-11-05 2021-09-30 13F TRANSOCEAN REG SHS H8817H100 259,938 4,894 1.92 985 -14.72 0.0021
2021-08-02 2021-06-30 13F TRANSOCEAN REG SHS H8817H100 255,044 21,217 9.07 1,155 39.49 0.0025
2021-05-13 2021-03-31 13F TRANSOCEAN REG SHS H8817H100 233,827 38,971 20.00 828 84.41 0.0020
2021-02-10 2020-12-31 13F TRANSOCEAN REG SHS H8817H100 194,856 14,962 8.32 449 207.53 0.0012
2020-11-12 2020-09-30 13F TRANSOCEAN REG SHS H8817H100 179,894 -113,570 -38.70 146 -72.81 0.0004
2020-08-14 2020-06-30 13F TRANSOCEAN REG SHS H8817H100 293,464 146,287 99.40 537 217.75 0.0018
2020-05-18 2020-03-31 13F TRANSOCEAN REG SHS H8817H100 147,177 147,177 169 0.0007
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F TRANSOCEAN CALL Call 10 4 n/a n/a n/a
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.