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Transocean Ltd. (RIG) institutional ownership

Latest close $5.28 Jul 27, 2026
Market cap$4.5B 52-week range SectorEnergy
Institutional ownership · Q1 2026
93.8%
of RIG shares outstanding
Top owners · Q1 2026
Dimensional
Two Sigma Investments, LP
D. E. Shaw & Co., Inc.
Institutional activity · Q1 2026
Activity unavailable
No clean comparison

Transocean Ltd. (RIG) price and institutional activity

Dates

Q1 2026

$0 bought by 0 investors
$0 sold by 0 investors
Bought Sold Totals per quarter; hover a bar for the names.

Transocean Ltd. (RIG) ownership

Largest disclosed holders in Q1 2026.

13F filing season in progress; institutional ownership uses the last closed quarter (2026 Q1)

Active funds 67.2%Index funds 26.6%Insiders 6.2%

Dimensional

owns 4.8% of shares outstanding
Est. $324M · Shares: 48.8M

Two Sigma Investments, LP

owns 4.6% of shares outstanding
Est. $308M · Shares: 46.5M

D. E. Shaw & Co., Inc.

owns 3.9% of shares outstanding
Est. $260M · Shares: 39.3M

Slate Path Capital LP

owns 3.0% of shares outstanding
Est. $199M · Shares: 30.1M

Capital World Investors

owns 2.9% of shares outstanding
Est. $196M · Shares: 29.6M

Pilgrim Global Advisors LLC

owns 2.4% of shares outstanding
Est. $159M · Shares: 23.9M

American Century Companies Inc

owns 2.2% of shares outstanding
Est. $151M · Shares: 22.8M

Morgan Stanley

owns 2.1% of shares outstanding
Est. $144M · Shares: 21.7M

Transocean Ltd. (RIG) institutional activity · 0

No matching institutional activity. Clear the filters to try again.

Famous investor activity in Transocean Ltd. (RIG)

Transocean Ltd. (RIG) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Deaton Chad C. · Director Buy +$173K
Price $4.95 Qty +35K Owned 237K Trade date Jul 2, 2026 Filed date Jul 7, 2026
Deaton Chad C. Director Buy $4.95 +35K +$173K 237K Jul 2, 2026 Jul 7, 2026
Lacey William F. · Director Tax withholding or exercise payment (F) -$140K
Price $6.70 Qty -21K Owned 61K Trade date May 26, 2026 Filed date May 27, 2026
Lacey William F. Director Tax withholding or exercise payment (F) $6.70 -21K -$140K 61K May 26, 2026 May 27, 2026
Deaton Chad C. · Director Tax withholding or exercise payment (F) -$140K
Price $6.70 Qty -21K Owned 202K Trade date May 26, 2026 Filed date May 27, 2026
Deaton Chad C. Director Tax withholding or exercise payment (F) $6.70 -21K -$140K 202K May 26, 2026 May 27, 2026
Mohn Frederik Wilhelm · Director Tax withholding or exercise payment (F) -$171K
Price $6.70 Qty -26K Owned 79K Trade date May 26, 2026 Filed date May 27, 2026
Mohn Frederik Wilhelm Director Tax withholding or exercise payment (F) $6.70 -26K -$171K 79K May 26, 2026 May 27, 2026
Lacey William F. · Director Exercise or conversion (M/X/C) $561K
Price $6.81 Qty 82K Owned 82K Trade date May 22, 2026 Filed date May 27, 2026
Lacey William F. Director Exercise or conversion (M/X/C) $6.81 82K $561K 82K May 22, 2026 May 27, 2026
Lacey William F. · Director Grant (A) 30K
Owned 30K Trade date May 22, 2026 Filed date May 27, 2026
Lacey William F. Director Grant (A) 30K 30K May 22, 2026 May 27, 2026
Deaton Chad C. · Director Exercise or conversion (M/X/C) $561K
Price $6.81 Qty 82K Owned 223K Trade date May 22, 2026 Filed date May 27, 2026
Deaton Chad C. Director Exercise or conversion (M/X/C) $6.81 82K $561K 223K May 22, 2026 May 27, 2026
Deaton Chad C. · Director Grant (A) 30K
Owned 30K Trade date May 22, 2026 Filed date May 27, 2026
Deaton Chad C. Director Grant (A) 30K 30K May 22, 2026 May 27, 2026
Mohn Frederik Wilhelm · Director Exercise or conversion (M/X/C) $561K
Price $6.81 Qty 82K Owned 105K Trade date May 22, 2026 Filed date May 27, 2026
Mohn Frederik Wilhelm Director Exercise or conversion (M/X/C) $6.81 82K $561K 105K May 22, 2026 May 27, 2026
Mohn Frederik Wilhelm · Director Grant (A) 30K
Owned 30K Trade date May 22, 2026 Filed date May 27, 2026
Mohn Frederik Wilhelm Director Grant (A) 30K 30K May 22, 2026 May 27, 2026
Chang Vanessa C. L. · Director Grant (A) 30K
Owned 30K Trade date May 22, 2026 Filed date May 27, 2026
Chang Vanessa C. L. Director Grant (A) 30K 30K May 22, 2026 May 27, 2026
Intrieri Vincent J. · Director Grant (A) 30K
Owned 30K Trade date May 22, 2026 Filed date May 27, 2026
Intrieri Vincent J. Director Grant (A) 30K 30K May 22, 2026 May 27, 2026
Dell'Osso Domenic J. Jr · Director Grant (A) 30K
Owned 30K Trade date May 22, 2026 Filed date May 27, 2026
Dell'Osso Domenic J. Jr Director Grant (A) 30K 30K May 22, 2026 May 27, 2026
Curado Frederico F. · Director Grant (A) 30K
Owned 30K Trade date May 22, 2026 Filed date May 27, 2026
Curado Frederico F. Director Grant (A) 30K 30K May 22, 2026 May 27, 2026
Barker Glyn Anthony · Director Grant (A) 30K
Owned 30K Trade date May 22, 2026 Filed date May 27, 2026
Barker Glyn Anthony Director Grant (A) 30K 30K May 22, 2026 May 27, 2026
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Transocean Ltd. (RIG) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Perestroika 82.8M
% of shares outstanding 11.5% Filing date Dec 19, 2022
Perestroika 82.8M 11.5% Dec 19, 2022
Vanguard Group Inc 68.6M
% of shares outstanding 8.5% Filing date Feb 13, 2024
Vanguard Group Inc 68.6M 8.5% Feb 13, 2024
Blackrock, Inc. 70.5M
% of shares outstanding 8.1% Filing date Nov 8, 2024
Blackrock, Inc. 70.5M 8.1% Nov 8, 2024
Primecap Management Co 50.7M
% of shares outstanding 6.3% Filing date Feb 12, 2024
Primecap Management Co 50.7M 6.3% Feb 12, 2024
D. E. Shaw & Co, L.P. 35.1M
% of shares outstanding 4.9% Filing date Feb 14, 2023
D. E. Shaw & Co, L.P. 35.1M 4.9% Feb 14, 2023
Hayfin Special Opportunities Fund II LP 41.5M
% of shares outstanding 4.8% Filing date Oct 15, 2024
Hayfin Special Opportunities Fund II LP 41.5M 4.8% Oct 15, 2024
BlackRock Inc. 13.9M
% of shares outstanding 2.3% Filing date Jul 12, 2021
BlackRock Inc. 13.9M 2.3% Jul 12, 2021
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Transocean Ltd. (RIG) ownership FAQ

Who owns RIG?

Institutions hold 93.8% of RIG shares in the Q1 2026 snapshot. The largest disclosed owners include Dimensional, Two Sigma Investments, LP, D. E. Shaw & Co., Inc.. The ownership chart shows each group's share of total shares outstanding from the latest disclosed filings. Retail and other includes everyone who does not file, not a tracked group.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.