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 446 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	$295.54M 78,811,863 shares	0.01%	+931.68K(+1.20%)Added	SEC filing ↗ Feb 11, 2025	▾
02	BlackRock, Inc. CIK 2012383 · View history	$269.03M 71,740,240 shares	0.01%	+1.23M(+1.80%)Added	SEC filing ↗ Feb 7, 2025	▾
03	PRIMECAP MANAGEMENT CO/CA/ CIK 763212 · View history	$205.56M 54,816,411 shares	0.16%	-1.53M(-2.70%)Reduced	SEC filing ↗ Feb 10, 2025	▾
04	Capital World Investors CIK 1422849 · View history	$150.83M 40,222,614 shares	0.02%	-8.04M(-16.70%)Reduced	SEC filing ↗ Feb 13, 2025	▾
05	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$150.03M 40,008,596 shares	0.04%	+809.86K(+2.10%)Added	SEC filing ↗ Feb 13, 2025	▾
06	STATE STREET CORP CIK 93751 · View history	$77.89M 20,769,776 shares	0.00%	+1.18M(+6.00%)Added	SEC filing ↗ Feb 14, 2025	▾
07	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$72.22M 19,257,437 shares	0.04%	+6.54M(+51.50%)Added	SEC filing ↗ Feb 11, 2025	▾
08	PILGRIM GLOBAL ADVISORS LLC CIK 1963918 · View history	$68.17M 18,177,804 shares	12.45%	-51.22K(-0.30%)Reduced	SEC filing ↗ Feb 14, 2025	▾
09	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$64.55M 17,208,805 shares	0.01%	-36.49K(-0.20%)Reduced	SEC filing ↗ Feb 12, 2025	▾
10	VAN ECK ASSOCIATES CORP CIK 869178 · View history	$57.73M 15,393,873 shares	0.07%	+3.90M(+33.90%)Added	SEC filing ↗ Jan 29, 2025	▾
11	MORGAN STANLEY CIK 895421 · Amended · View history	$52.22M 13,925,901 shares	0.00%	-4.37M(-23.90%)Reduced	SEC filing ↗ May 15, 2025	▾
12	GENDELL JEFFREY L CIK 1056581 · View history	$46.92M 12,512,831 shares	1.47%	+5.90M(+89.40%)Added	SEC filing ↗ Feb 14, 2025	▾
13	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$46.75M 12,465,534 shares	0.01%	+859.21K(+7.40%)Added	SEC filing ↗ Feb 6, 2025	▾
14	Elliott Investment Management L.P. CIK 1791786 · Amended · View history	$44.51M 11,870,319 shares	0.48%	0(0.00%)Unchanged	SEC filing ↗ Feb 14, 2025	▾
15	KEYBANK NATIONAL ASSOCIATION/OH CIK 1089877 · View history	$44.28M 11,807,393 shares	0.17%	+43.16K(+0.40%)Added	SEC filing ↗ Feb 6, 2025	▾
16	NORTHERN TRUST CORP CIK 73124 · View history	$28.02M 7,470,701 shares	0.00%	+520.05K(+7.50%)Added	SEC filing ↗ Feb 14, 2025	▾
17	Bank of New York Mellon Corp CIK 1390777 · View history	$26.90M 7,173,110 shares	0.00%	-4.60M(-39.10%)Reduced	SEC filing ↗ Feb 4, 2025	▾
18	Ensign Peak Advisors, Inc CIK 1454984 · View history	$26.82M 7,152,461 shares	0.05%	+1.06M(+17.40%)Added	SEC filing ↗ Feb 14, 2025	▾
19	CITADEL ADVISORS LLC CIK 1423053 · View history	$24.68M 6,580,493 shares	0.02%	+5.74M(+680.90%)Added	SEC filing ↗ Feb 14, 2025	▾
20	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$23.18M 6,182,180 shares	0.00%	+334.81K(+5.70%)Added	SEC filing ↗ Feb 11, 2025	▾

Showing 20 / 446 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

446

Cancelled or null records excluded

Disclosed shares

609,877,255

Not deduplicated across managers

Disclosed value

$2.29B

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. · Q4 2024

Explore all 446 reporting institutions.

This page includes 20 of 446 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.