Estimated market cap $6.19BShares outstanding from the company’s latest SEC filing (all share classes, each priced at its own close; ADRs converted to ADS) × last close from Tiingo. Updated daily. This figure: shares as of Oct 27, 2026, last close Nov 13, 2026.1.12B shares, shares as of Oct 27, 2026CIK 1451505The SEC’s Central Index Key, the number it uses to identify every company and person that files.
Insider trades, 12 mo
4 buys · 11 sells
$4.84M sold, open market
Congress trades, 24 mo
1
1 purchase, 0 sales
13F holders
…
Lobbying, 12 mo
—
No lobbying filings
Federal contracts, 12 mo
—
None matched
Ask your AI:
Latest 10-Q
What changed in Transocean Ltd's latest quarterly report, compared with the one before.
Loading…
Insider trades
Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.
Loading…
13F holders
Funds that report this stock, checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
Loading…
Top 10 holders.Premium lists every holder, with CSV downloads.
Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.
Loading…
Executive-branch trades
2 trades
Trades in Transocean Ltd reported by the President, Cabinet members and other senior executive-branch officials. Amounts are ranges.Form 278-T is the periodic transaction report that senior executive-branch officials file with the Office of Government Ethics. They must report each trade over $1,000 within 30 days of being notified of it, and no later than 45 days after the trade. Amounts are ranges, not exact figures.
Recent executive-branch trades
The form has no ticker column. The asset is shown as the filer wrote it. We add a ticker link only when we could match the asset to a listed company.
The form asks for a range, such as $1,001 - $15,000, not an exact amount. A line can be left blank when the filer's note says the amount was not more than $1,000.
What Transocean Ltd and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.
Loading…
Institutional ownership over time
How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.
13F holders, Q3 2026Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
371
64.0% of shares · 138 added
Latest 10-Q
Q3 2026
What changed in Transocean Ltd's latest quarterly report, compared with the one before.
Filed Nov 3, 2026 · Quarter ended Sep 30, 2026
Summary text goes here once it has loaded. Summary text goes here once it has loaded.
Summary text goes here once it has loaded.
Summary text goes here once it has loaded.
AI summary of changes vs the prior report. Written by AI from the paragraphs that changed, and checked against them. This is information, not investment advice.
Compared with the 10-Q for the quarter ended Jun 30, 2026. Sections compared: management's discussion, risk factors, legal proceedings and controls and procedures.
Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.
No open-market insider trades reported since Jul 2, 2026. Insiders have two business days to file.
Recent insider trades
How the stock has done since the trade date, measured against the S&P 500 over the same days. It describes the stock, not the trader's actual gain or loss.
371 funds report RIG. Values checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
Funds own 90% of shares (Q2 2026)Fund managers with more than $100 million in US-listed stocks file a 13F each quarter. It lists their long stock positions only (shorts, options and bonds are left out) and can arrive up to 45 days after the quarter ends, so this is a snapshot of the quarter end. We add up the shares every fund reports in this class and divide by the shares outstanding. The total can pass 100%: the same shares are often reported by more than one manager (an adviser and the fund it runs), lent shares can be reported twice, and the share count can be out of date after buybacks. We divided 1.01B reported shares by 1.12B shares, from the company’s SEC filing as of Jul 28, 2026.
536 funds hold the stock.
Q3 2026: 64% · 5,560 of ~8,900 funds reported so farFunds have 45 days after a quarter ends to file. This quarter’s reports are still arriving, so the figure only counts the funds that have filed so far and will usually rise.
Q2 202564%
Q3 202568%
Q4 202570%
Q1 202681%
Q2 202690%
Q3 2026 (so far)64%
Q3 2026. 59 new, 138 added to, 88 trimmed, 225 exited since Q2 2026.
Download CSVEvery fund that holds RIG, not only these ten. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.
Trades by members of Congress
1 in 24 mo
Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.
Recent congressional trades
Member
Transaction
Amount
Traded → disclosed
Since tradeHow the stock has done since the trade date, measured against the S&P 500 over the same days. It describes the stock, not the trader's actual gain or loss.
What Transocean Ltd and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.
No recent lobbying filings for this company.
Institutional ownership over time
How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.
Funds holding the stock
Shares they report
Funds holding the stock by quarter
Q2 2013
463
—
171.68M
$8.2B
Q3 2013
474
+11
180.59M
$7.9B
Q4 2013
517
+43
214.96M
$10.5B
Q1 2014
505
-12
220.52M
$9.1B
Q2 2014
506
+1
235.69M
$10.6B
Q3 2014
492
-14
242.22M
$7.7B
Q4 2014
440
-52
249.73M
$4.6B
Q1 2015
412
-28
232.78M
$3.4B
Q2 2015
407
-5
231.21M
$3.7B
Q3 2015
394
-13
258.63M
$3.3B
Q4 2015
376
-18
261.18M
$3.2B
Q1 2016
389
+13
275.53M
$2.5B
Q2 2016
391
+2
265.88M
$3.2B
Q3 2016
403
+12
252.98M
$2.7B
Q4 2016
421
+18
251.90M
$3.7B
Q1 2017
435
+14
270.99M
$3.4B
Q2 2017
428
-7
267.98M
$2.2B
Q3 2017
403
-25
289.27M
$3.1B
Q4 2017
426
+23
292.08M
$3.1B
Q1 2018
429
+3
339.34M
$3.4B
Q2 2018
445
+16
338.01M
$4.5B
Q3 2018
452
+7
393.99M
$5.5B
Q4 2018
440
-12
470.40M
$3.3B
Q1 2019
442
+2
436.65M
$3.8B
Q2 2019
398
-44
455.64M
$2.9B
Q3 2019
393
-5
439.87M
$2.0B
Q4 2019
385
-8
442.19M
$3.0B
Q1 2020
339
-46
435.10M
$537.3M
Q2 2020
314
-25
364.41M
$668.8M
Q3 2020
274
-40
306.76M
$247.7M
Q4 2020
268
-6
305.28M
$802.0M
Q1 2021
291
+23
329.96M
$1.2B
Q2 2021
305
+14
342.30M
$1.5B
Q3 2021
295
-10
322.84M
$1.2B
Q4 2021
315
+20
333.18M
$920.3M
Q1 2022
331
+16
382.07M
$1.8B
Q2 2022
328
-3
382.17M
$1.3B
Q3 2022
337
+9
400.37M
$990.7M
Q4 2022
375
+38
464.79M
$2.1B
Q1 2023
402
+27
529.28M
$3.4B
Q2 2023
393
-9
512.29M
$3.6B
Q3 2023
426
+33
539.26M
$4.4B
Q4 2023
433
+7
567.14M
$3.6B
Q1 2024
428
-5
586.86M
$3.7B
Q2 2024
417
-11
605.05M
$3.2B
Q3 2024
426
+9
606.11M
$2.6B
Q4 2024
446
+20
609.98M
$2.3B
Q1 2025
412
-34
606.54M
$1.9B
Q2 2025
426
+14
602.59M
$1.6B
Q3 2025
456
+30
753.41M
$2.4B
Q4 2025
474
+18
775.11M
$3.2B
Q1 2026
544
+70
907.41M
$6.0B
Q2 2026
538
-6
1.01B
$4.9B
Q3 2026
371
-167
715.12M
$3.7B
Each point is a quarter-end, from Q2 2013 to Q3 2026. A fund's 13F lists its long positions in US-listed securities as of the last day of the quarter and arrives up to 45 days later, so each point shows holdings at quarter-end, not on the day they were reported.
Common shares only; options and bonds are left out. When a fund amends a report, the amended version is the one counted.
The history follows the company's current CUSIP number (H8817H100). If the company's shares were ever re-issued under a different CUSIP, the quarters before the change are not part of this series, so the first point (Q2 2013) can be later than the stock's first appearance in 13F reports.
Share counts are adjusted for stock splits; none took place between these quarters. Values are in dollars as reported at the time and are not adjusted.
A quarter appears once our daily update has built its summary. If a summary cannot be built, older reports are kept and the chart shows the quarters it has until the next update repairs it.