Transocean Ltd.
RIG- Exchange
- NYSE
- Industry
- Drilling Oil & Gas Wells
- SEC CIK
- 0001451505
In the last 90 days, Transocean Ltd. insiders filed 1 open-market purchase and 0 sales; 539 institutions reported holding it in 13F filings for Q2 2026, worth $4.88B in total; superinvestors Pabrai Investment Funds and Elliott Investment Management hold it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Transocean Ltd. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 1 filing
- 1 insider, $173.3K in total
- Open-market sells
- 0 filings
- Insiders trading
- 1
- Net value
- +$173.3K
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Transocean Ltd., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Deaton Chad C | Director | 237,421 | Jul 7, 2026 | 2 |
| Chang Vanessa C L | Director | 59,200 | May 27, 2026 | 1 |
| Intrieri Vincent J | Director | – | May 27, 2026 | 1 |
| Merksamer Samuel J. | Director | – | May 27, 2026 | 1 |
| Dell'Osso Domenic J Jr | Director | – | May 27, 2026 | 1 |
| Barker Glyn Anthony | Director | – | May 27, 2026 | 1 |
| Curado Frederico F. | Director | – | May 27, 2026 | 1 |
| Mohn Frederik Wilhelm | Director | 78,904 | May 27, 2026 | 3 |
| Lacey William F. | Director | 61,419 | May 27, 2026 | 1 |
| Long Brady K | EVP & Chief Legal Officer | 1,125,438 | May 22, 2026 | 5 |
| Adamson Keelan | PRESIDENT AND CEO | 1,600,884 | May 5, 2026 | 6 |
| Mackenzie Roderick James | EVP, Chief Commercial Officer | 268,025 | Mar 5, 2026 | 5 |
| Thigpen Jeremy D | Executive Chair | 2,614,548 | Mar 3, 2026 | 3 |
| Vayda Robert Thaddeus | EVP, Chief Financial Officer | 352,635 | Mar 3, 2026 | 3 |
| Pack Jason | SVP, Chief Accounting Officer | 262,103 | Mar 3, 2026 | 2 |
| Perestroika | Director | 96,574,894Indirect | Nov 25, 2025 | 2 |
| Perestroika (Cyprus) Ltd | Director | 96,574,894 | Nov 25, 2025 | 2 |
| Oevrum Margareth | Director | – | May 17, 2024 | 0 |
| Davis Howard E | EVP, CAO & CIO | 1,427,231 | Mar 5, 2024 | 0 |
| Tonnel David A | SVP - CHIEF ACCOUNTING OFFICER | 727,088 | Mar 5, 2024 | 0 |
| Mey Mark-Anthony Lovell | EVP & CFO | 1,595,750 | Mar 5, 2024 | 0 |
| Muller Edward R | Director | – | May 15, 2023 | 0 |
| de Saint Victor Diane | Director | – | May 17, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Nov 25, 2025 (view filing) | Nov 24 | 1 day | Mohn Frederik WilhelmDirector | PPurchaseRegistered Shares | +1.50M | $4.02 | +$6.03M | +1.6%96.6M after | Duplicate filing |
| Nov 25, 2025 (view filing) | Nov 24 | 1 day | Perestroika (Cyprus) LtdDirector | PPurchaseRegistered Shares | +1.50M | $4.02 | +$6.03M | +1.6%96.6M after | Duplicate filing |
| Dec 1, 2025 (view filing) | Nov 26 | 5 days | Thigpen Jeremy DExecutive Chair | SSaleRegistered Shares | −500.0K | $4.32 | −$2.16M | −19.0%2.14M after | |
| Dec 1, 2025 (view filing) | Nov 26 | 5 days | Vayda Robert ThaddeusEVP, Chief Financial Officer | SSaleRegistered Shares | −30.0K | $4.29 | −$128.7K | −11.3%235.2K after | |
| Dec 5, 2025 (view filing) | Dec 3 | 2 days | Mackenzie Roderick JamesEVP, Chief Commercial Officer | SSaleRegistered Shares | −35.0K | $4.48 | −$156.8K | −14.2%212.1K after | |
| Dec 8, 2025 (view filing) | Dec 4-5 | 4 days | Adamson KeelanPRESIDENT AND CEO | SSaleRegistered Shares | −66.4K | $4.50 | −$299.0K | −4.8%1.30M after | 2 lots10b5-1 |
| Jan 28, 2026 (view filing) | Jan 26-27 | 2 days | Long Brady KEVP & Chief Legal Officer | SSaleRegistered Shares | −115.4K | $5.00 | −$576.9K | −9.9%1.05M after | 2 lots10b5-1 |
| Jan 28, 2026 (view filing) | Jan 26-27 | 2 days | Adamson KeelanPRESIDENT AND CEO | SSaleRegistered Shares | −81.5K | $5.00 | −$407.7K | −6.3%1.22M after | 2 lots10b5-1 |
| Mar 5, 2026 (view filing) | Mar 4 | 1 day | Mackenzie Roderick JamesEVP, Chief Commercial Officer | SSaleRegistered Shares | −78.4K | $6.36 | −$498.4K | −22.6%268.0K after | |
| May 22, 2026 (view filing) | May 21 | 1 day | Long Brady KEVP & Chief Legal Officer | SSaleRegistered Shares | −81.7K | $7.45 | −$609.0K | −6.8%1.13M after | |
| Jul 7, 2026 (view filing)4:22 PM ET | Jul 2 | 5 days | Deaton Chad CDirector | PPurchaseRegistered Shares | +35.0K | $4.95 | +$173.3K | +17.3%237.4K after |