Company · Ownership research

Transocean Ltd. RIG

CIK 0001451505

Form 4 transactions dated Nov 1, 2023 to Nov 8, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 40 rows; the complete set is available through the API.

Insider filings on file run through Jul 7, 2026.

Insider purchases & sales

Purchased: $155.58M
Sold: $6.41M

Nov 1, 2023 – Jul 7, 2026
Available records · partial months are marked ·

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202410 of 15 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Dec 12, 2024	Mackenzie Roderick James EVP, Chief Commercial Officer	Sale10b5-1 footnote	$86.90K 22,000 shares sold	8.04% sold Direct holding	▾
Nov 22, 2024	Mackenzie Roderick James EVP, Chief Commercial Officer	Sale	$163.20K 37,261 shares sold	11.99% sold Direct holding	▾
Nov 18, 2024	Mackenzie Roderick James EVP, Chief Commercial Officer	Sale	$85.80K 20,000 shares sold	6.04% sold Direct holding	▾
Sep 12, 2024	Perestroika Director · 10% owner	Purchase	$6.20M 1,500,000 shares bought	1.67% added Indirect holding	▾
Sep 12, 2024	Perestroika (Cyprus) Ltd Director · 10% owner	Purchase	$6.20M 1,500,000 shares bought	1.67% added Direct holding	▾
Sep 12, 2024	Mohn Frederik Wilhelm Director · 10% owner	Purchase	$6.20M 1,500,000 shares bought	1.67% added Indirect holding	▾
Aug 2, 2024	Perestroika (Cyprus) Ltd Director · 10% owner	Purchase	$10.46M 2,000,000 shares bought	2.28% added Direct holding	▾
Aug 2, 2024	Perestroika Director · 10% owner	Purchase	$10.46M 2,000,000 shares bought	2.28% added Indirect holding	▾
Aug 2, 2024	Mohn Frederik Wilhelm Director · 10% owner	Purchase	$10.46M 2,000,000 shares bought	2.28% added Indirect holding	▾
May 15, 2024	Perestroika (Cyprus) Ltd Director · 10% owner	Purchase	$12.02M 2,000,000 shares bought	2.34% added Direct holding	▾

Showing 15 / 15 record groups in 2024. The complete set is available through the API.

Transocean Ltd. · RIG

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 15 of 15 purchase / sale groups and 30 of 40 other groups; the totals and the monthly series cover the whole window.

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.