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
Frederik Wilhelm Mohn · Director
Director
$6.0M boughtPerestroika · Director
Director
$6.0M boughtPerestroika (Cyprus) Ltd · Director
Director
$6.0M boughtJeremy D. Thigpen · Executive Chair
Executive Chair
$2.2M soldBrady K. Long · EVP & Chief Legal Officer
EVP & Chief Legal Officer
$1.6M soldKeelan Adamson · PRESIDENT AND CEO
PRESIDENT AND CEO
$870.4K soldChad C. Deaton · Director
Director
$173.3K bought2 others
Combined, one mark per week
$991.5K soldHas 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| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Frederik Wilhelm Mohn | Director | — | $6.0M | 1 | — | |
| Perestroika | Director | — | $6.0M | 1 | — | |
| Perestroika (Cyprus) Ltd | Director | — | $6.0M | 1 | — | |
| Jeremy D. Thigpen | Executive Chair | $2.2M | — | 1 | — | |
| Brady K. Long | EVP & Chief Legal Officer | $1.6M | — | 3 | 61% of sales | |
| Keelan Adamson | PRESIDENT AND CEO | $870.4K | — | 3 | 100% of sales | |
| Roderick James Mackenzie | EVP, Chief Commercial Officer | $862.8K | — | 3 | — | |
| Chad C. Deaton | Director | — | $173.3K | 1 | — | |
| Robert Thaddeus Vayda | EVP, Chief Financial Officer | $128.7K | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Chad C. Deaton Director | Purchase | 35,000 | $4.95 | $173.3K | 237,421 | |
traded | Brady K. Long EVP & Chief Legal Officer | Sale | 81,741 | $7.45 | $609.0K | 1,125,438 | |
traded | Roderick James Mackenzie EVP, Chief Commercial Officer | Sale | 78,370 | $6.36 | $498.4K | 268,025 | |
traded | Brady K. Long EVP & Chief Legal Officer | SalePre-arranged (10b5-1) | 115,378 | $5.00 | $576.9K | 1,046,031 | |
traded | Keelan Adamson PRESIDENT AND CEO | SalePre-arranged (10b5-1) | 81,533 | $5.00 | $407.7K | 1,222,182 | |
traded | Keelan Adamson PRESIDENT AND CEO | SalePre-arranged (10b5-1) | 66,437 | $4.50 | $299.0K | 1,303,715 | |
traded | Roderick James Mackenzie EVP, Chief Commercial Officer | Sale | 35,000 | $4.48 | $156.8K | 212,072 | |
traded | Jeremy D. Thigpen Executive Chair | Sale | 500,000 | $4.32 | $2.2M | 2,136,223 | |
traded | Robert Thaddeus Vayda EVP, Chief Financial Officer | Sale | 30,000 | $4.29 | $128.7K | 235,154 | |
traded | Perestroika Director | Purchase | 1,500,000 | $4.02 | $6.0M | 96,574,894 | |
traded | Frederik Wilhelm Mohn Director | Purchase | 1,500,000 | $4.02 | $6.0M | 96,574,894 | |
traded | Perestroika (Cyprus) Ltd Director | Purchase | 1,500,000 | $4.02 | $6.0M | 96,574,894 | |
traded | Roderick James Mackenzie EVP, Chief Commercial Officer | Sale | 53,769 | $3.86 | $207.5K | 247,072 | |
traded | Brady K. Long EVP & Chief Legal Officer | SalePre-arranged (10b5-1) | 97,090 | $4.00 | $388.4K | 1,161,409 | |
traded | Keelan Adamson PRESIDENT AND CEO | SalePre-arranged (10b5-1) | 40,942 | $4.00 | $163.8K | 1,370,152 |
GET /stocks/filings/vX/form-4?tickers=RIG&filing_date.gte=2025-10-23&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"RIG"
],
"issuer_cik": "0001451505",
"owner_cik": "0001239236",
"accession_number": "0001239236-26-000005",
"form_type": "4",
"filing_date": "2026-07-07",
"period_of_report": "2026-07-02",
"issuer_name": "Transocean Ltd.",
"issuer_trading_symbol": "RIG",
"owner_name": "DEATON CHAD C",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Registered Shares",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-07-02",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 35000,
"transaction_price_per_share": 4.95,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 237421,
"transaction_value": 173250,
"direct_or_indirect": "D"
},
{
"tickers": [
"RIG"
],
"issuer_cik": "0001451505",
"owner_cik": "0001502666",
"accession_number": "0001502666-26-000012",
"form_type": "4",
"filing_date": "2026-05-22",
"period_of_report": "2026-05-21",
"issuer_name": "Transocean Ltd.",
"issuer_trading_symbol": "RIG",
"owner_name": "Long Brady K",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "EVP & Chief Legal Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Registered Shares",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-05-21",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 81741,
"transaction_price_per_share": 7.45,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 1125438,
"transaction_value": 608970.4500000001,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.40 to $7.48, inclusive. The reporting person undertakes to provide Transocean Ltd. (the \"Company\"), any security holder of the Company, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote (1) to this Form 4."
},
{
"id": "F2",
"description": "The amount of securities beneficially owned following the reported transaction reflects a prior transfer of shares to the reporting person's former spouse pursuant to a domestic relations order."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
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:
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.