Company · Ownership research

Transocean Ltd. RIG

CIK 0001451505 · CUSIP H8817H100

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP H8817H100 (RIG), not CUSIP H8817H900 (RIG), CUSIP H8817H950 (RIG), and does not merge CUSIPs.

This page lists the top 20 of 426 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	VANGUARD GROUP INC CIK 102909 · View history	$330.99M 77,880,179 shares	0.01%	+4.76M(+6.50%)Added	SEC filing ↗ Nov 13, 2024	▾
02	BlackRock, Inc. CIK 2012383 · View history	$299.65M 70,506,279 shares	0.01%	—	SEC filing ↗ Nov 13, 2024	▾
03	PRIMECAP MANAGEMENT CO/CA/ CIK 763212 · View history	$239.45M 56,342,169 shares	0.18%	+222.68K(+0.40%)Added	SEC filing ↗ Nov 8, 2024	▾
04	Capital World Investors CIK 1422849 · View history	$205.11M 48,260,669 shares	0.03%	+1.06M(+2.20%)Added	SEC filing ↗ Nov 13, 2024	▾
05	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$166.60M 39,198,732 shares	0.04%	+2.47M(+6.70%)Added	SEC filing ↗ Nov 7, 2024	▾
06	Slate Path Capital LP CIK 1559706 · View history	$93.58M 22,018,550 shares	1.57%	-8.98M(-29.00%)Reduced	SEC filing ↗ Nov 14, 2024	▾
07	STATE STREET CORP CIK 93751 · View history	$83.28M 19,594,121 shares	0.00%	+1.94M(+11.00%)Added	SEC filing ↗ Nov 14, 2024	▾
08	MORGAN STANLEY CIK 895421 · Amended · View history	$77.75M 18,293,569 shares	0.01%	-5.38M(-22.70%)Reduced	SEC filing ↗ May 14, 2025	▾
09	PILGRIM GLOBAL ADVISORS LLC CIK 1963918 · View history	$77.47M 18,229,024 shares	11.87%	+18.23MNew	SEC filing ↗ Nov 14, 2024	▾
10	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$73.31M 17,245,298 shares	0.01%	+680.24K(+4.10%)Added	SEC filing ↗ Nov 12, 2024	▾
11	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$54.04M 12,715,166 shares	0.03%	-722.41K(-5.40%)Reduced	SEC filing ↗ Nov 12, 2024	▾
12	Elliott Investment Management L.P. CIK 1791786 · View history	$50.45M 11,870,319 shares	0.47%	0(0.00%)Unchanged	SEC filing ↗ Nov 14, 2024	▾
13	Bank of New York Mellon Corp CIK 1390777 · View history	$50.04M 11,773,347 shares	0.01%	-5.08M(-30.20%)Reduced	SEC filing ↗ Nov 12, 2024	▾
14	KEYBANK NATIONAL ASSOCIATION/OH CIK 1089877 · View history	$50.00M 11,764,238 shares	0.19%	+1.94M(+19.70%)Added	SEC filing ↗ Oct 31, 2024	▾
15	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$49.33M 11,606,320 shares	0.01%	+826.23K(+7.70%)Added	SEC filing ↗ Nov 12, 2024	▾
16	VAN ECK ASSOCIATES CORP CIK 869178 · View history	$47.26M 11,497,993 shares	0.06%	-3.55M(-23.60%)Reduced	SEC filing ↗ Oct 29, 2024	▾
17	INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC CIK 1818604 · View history	$46.28M 196,699 shares	0.07%	+151.51K(+335.30%)Added	SEC filing ↗ Oct 22, 2024	▾
18	NORTHERN TRUST CORP CIK 73124 · View history	$29.54M 6,950,648 shares	0.00%	+4.39M(+171.60%)Added	SEC filing ↗ Nov 13, 2024	▾
19	Kailix Advisors LLC CIK 1970731 · View history	$28.14M 6,620,451 shares	23.72%	+2.48M(+59.90%)Added	SEC filing ↗ Nov 4, 2024	▾
20	GENDELL JEFFREY L CIK 1056581 · View history	$28.08M 6,607,832 shares	0.88%	+798.74K(+13.70%)Added	SEC filing ↗ Nov 14, 2024	▾

Showing 20 / 426 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

426

Cancelled or null records excluded

Disclosed shares

605,357,708

Not deduplicated across managers

Disclosed value

$2.62B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Transocean Ltd. · Q3 2024

Explore all 426 reporting institutions.

This page includes 20 of 426 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

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.