Massivemarkets

SEC Form 4

Transocean LTD. (RIG) insider trading

In the 12 months to Oct 23, 2026, 5 RIG insiders reported open-market sales of $5.6M across 11 filings; 4 insiders bought $18.3M.

Latest filing · Last 12 months · Source: SEC EDGAR · How we count

Open-market sales
$5.6M
11 filings · 5 insiders
Open-market purchases
$18.3M
4 filings
Pre-arranged sales (10b5-1)
5 of 11
$1.8M of $5.6M sold (33%)

Who traded RIG, and when

  • Purchase
  • Sale
  • Sale, pre-arranged (10b5-1)

RIG daily close from Oct 23, 2025 to Oct 23, 2026, between $3.75 and $7.58, last $6.49. 11 sale and 4 purchase filings by 9 insiders, marked at their filing dates. Frederik Wilhelm Mohn, Director: bought $6.0M across 1 filing, first filed Nov 25, 2025, last Nov 25, 2025. Perestroika, Director: bought $6.0M across 1 filing, first filed Nov 25, 2025, last Nov 25, 2025. Perestroika (Cyprus) Ltd, Director: bought $6.0M across 1 filing, first filed Nov 25, 2025, last Nov 25, 2025. Jeremy D. Thigpen, Executive Chair: sold $2.2M across 1 filing, first filed Dec 1, 2025, last Dec 1, 2025. Brady K. Long, EVP & Chief Legal Officer: sold $1.6M across 3 filings, first filed Oct 28, 2025, last May 22, 2026. Keelan Adamson, PRESIDENT AND CEO: sold $870.4K across 3 filings, first filed Oct 28, 2025, last Jan 28, 2026. Chad C. Deaton, Director: bought $173.3K across 1 filing, first filed Jul 7, 2026, last Jul 7, 2026. 2 others: sold $991.5K across 4 filings, first filed Nov 4, 2025, last Mar 5, 2026.

Largest mark · tap a row for others

Frederik Wilhelm Mohn · Director

Purchase $6,030,000

1,500,000 shares at $4.02 avg

Filed Nov 25, 2025 · traded Nov 24

Close on filing date $4.05

RIG daily closelast $6.49

Frederik Wilhelm Mohn · Director

$6.0M bought

Perestroika · Director

$6.0M bought

Perestroika (Cyprus) Ltd · Director

$6.0M bought

Jeremy D. Thigpen · Executive Chair

$2.2M sold

Brady K. Long · EVP & Chief Legal Officer

$1.6M sold

Keelan Adamson · PRESIDENT AND CEO

$870.4K sold

Chad C. Deaton · Director

$173.3K bought

2 others

$991.5K sold
One row per insider, smaller filers combined; marks sit at the SEC filing date, sized by dollar value.

Has Transocean LTD.'s CEO sold stock?

Yes. Keelan Adamson (CEO) sold 188,912 shares ($870.4K) between Oct 2025 and Jan 2026, all under a pre-arranged 10b5-1 plan.

Open-market trades

15 filings in the last 12 months
InsiderRoleSoldBoughtFilingsPre-arranged (10b5-1)Last filed
Frederik Wilhelm MohnDirector—$6.0M1—
PerestroikaDirector—$6.0M1—
Perestroika (Cyprus) LtdDirector—$6.0M1—
Jeremy D. ThigpenExecutive Chair$2.2M—1—
Brady K. LongEVP & Chief Legal Officer$1.6M—361% of sales
Keelan AdamsonPRESIDENT AND CEO$870.4K—3100% of sales
Roderick James MackenzieEVP, Chief Commercial Officer$862.8K—3—
Chad C. DeatonDirector—$173.3K1—
Robert Thaddeus VaydaEVP, Chief Financial Officer$128.7K—1—
Other insider activity (not market trades) · 46 records
  • Option exercises30 records
  • Tax withholding16 records

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

Build this yourself

This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

Agent prompt

Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for RIG every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

How to read this page

Open-market purchase or sale
A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
Pre-arranged (10b5-1)
The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.