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 470 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	$400.64M 97,006,263 shares	0.01%	+2.49M(+2.60%)Added	SEC filing ↗ Jan 29, 2026	▾
02	BlackRock, Inc. CIK 2012383 · View history	$364.03M 88,142,959 shares	0.01%	+2.93M(+3.40%)Added	SEC filing ↗ Feb 12, 2026	▾
03	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$179.53M 43,470,312 shares	0.04%	+7.52M(+20.90%)Added	SEC filing ↗ Feb 12, 2026	▾
04	PILGRIM GLOBAL ADVISORS LLC CIK 1963918 · View history	$131.17M 31,759,346 shares	24.30%	0(0.00%)Unchanged	SEC filing ↗ Feb 17, 2026	▾
05	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$113.53M 27,488,687 shares	0.06%	+1.03M(+3.90%)Added	SEC filing ↗ Feb 13, 2026	▾
06	Dalal Street, LLC CIK 1549575 · View history	$111.68M 27,040,133 shares	27.78%	+2.60M(+10.60%)Added	SEC filing ↗ Feb 13, 2026	▾
07	MORGAN STANLEY CIK 895421 · Amended · View history	$102.38M 24,790,325 shares	0.01%	+2.14M(+9.40%)Added	SEC filing ↗ May 27, 2026	▾
08	STATE STREET CORP CIK 93751 · View history	$102.12M 24,725,897 shares	0.00%	+2.86M(+13.10%)Added	SEC filing ↗ Feb 13, 2026	▾
09	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$100.09M 24,235,919 shares	0.15%	+5.60M(+30.00%)Added	SEC filing ↗ Feb 17, 2026	▾
10	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$94.17M 22,797,180 shares	0.01%	+1.52M(+7.10%)Added	SEC filing ↗ Feb 9, 2026	▾
11	TWO SIGMA ADVISERS, LP CIK 1478735 · View history	$91.74M 22,213,154 shares	0.18%	+3.56M(+19.10%)Added	SEC filing ↗ Feb 17, 2026	▾
12	VAN ECK ASSOCIATES CORP CIK 869178 · View history	$69.48M 16,824,069 shares	0.06%	+2.13M(+14.50%)Added	SEC filing ↗ Feb 13, 2026	▾
13	D. E. Shaw & Co., Inc. CIK 1009207 · View history	$67.84M 16,425,031 shares	0.05%	+13.61M(+482.80%)Added	SEC filing ↗ Feb 17, 2026	▾
14	GOLDMAN SACHS GROUP INC CIK 886982 · Amended · View history	$66.27M 16,045,959 shares	0.01%	-5.90M(-26.90%)Reduced	SEC filing ↗ Mar 25, 2026	▾
15	Capital World Investors CIK 1422849 · View history	$64.70M 15,665,736 shares	0.01%	-3.00M(-16.10%)Reduced	SEC filing ↗ Feb 11, 2026	▾
16	BANK OF AMERICA CORP /DE/ CIK 70858 · View history	$64.03M 15,504,361 shares	0.00%	+11.97M(+338.50%)Added	SEC filing ↗ Feb 17, 2026	▾
17	KEYBANK NATIONAL ASSOCIATION/OH CIK 1089877 · View history	$50.60M 12,251,077 shares	0.18%	+977.62K(+8.70%)Added	SEC filing ↗ Jan 30, 2026	▾
18	BARCLAYS PLC CIK 312069 · View history	$44.62M 10,802,664 shares	0.02%	+7.54M(+230.60%)Added	SEC filing ↗ Feb 13, 2026	▾
19	GENDELL JEFFREY L CIK 1056581 · View history	$44.56M 10,789,833 shares	0.78%	+2.77M(+34.50%)Added	SEC filing ↗ Feb 13, 2026	▾
20	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$41.29M 9,997,978 shares	0.01%	-343.90K(-3.30%)Reduced	SEC filing ↗ Feb 13, 2026	▾

Showing 20 / 470 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

470

Cancelled or null records excluded

Disclosed shares

771,931,585

Not deduplicated across managers

Disclosed value

$3.19B

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 2025

Explore all 470 reporting institutions.

This page includes 20 of 470 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.

Download CSV
Earlier quarters
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

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. This page lists 20 of 470 reporting institutions; totals use the complete disclosed data.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.

MCP  https://api.akkrudata.ai/mcp

akkru_institutional_holdings
{"action":"holders","cusip":"H8817H100","quarter":"2025Q4","type":"positions","page_size":100}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP / CLI documentation: /documents
llms.txt: /llms.txt

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.