Every Form 4 that Transocean LTD. (RIG) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow RIG and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full RIG filings page.
Transocean Ltd. director Chad C. Deaton reported an open-market purchase of company shares. On July 2, 2026, he bought 35,000 Registered Shares at $4.95 per share. Following this transaction, his directly held position increased to 237,421 shares of Transocean.
Transocean Ltd. director William F. Lacey reported routine equity compensation transactions. On May 22, 2026, he acquired 82,353 Registered Shares through the exercise or conversion of a derivative security at $6.81 per share and received a grant of 30,435 Restricted Units at no cost under the long-term incentive plan.
These Restricted Units are 1-for-1 Registered Share equivalents that will vest on the earlier of May 22, 2027 or the next Annual General Meeting following the grant. On May 26, 2026, 20,934 Registered Shares were disposed of at $6.70 per share solely to satisfy tax withholding obligations upon vesting. After these transactions, Lacey directly holds 61,419 Registered Shares, plus the 30,435 unvested Restricted Units.
Transocean Ltd. director Chad C. Deaton reported compensation-related equity transactions in the company’s shares. On May 22, 2026, he exercised derivative securities to acquire 82,353 registered shares at $6.81 per share and received a grant of 30,435 Restricted Units, which are 1-for-1 registered share equivalents under the long-term incentive plan.
On May 26, 2026, 20,932 registered shares were disposed of at $6.70 per share to satisfy tax withholding obligations upon vesting of previously granted Restricted Units, rather than through an open-market sale. After these transactions, he directly holds 202,421 registered shares, and the new 30,435 Restricted Units will vest on the earlier of May 22, 2027 or the next Annual General Meeting, and will be settled in registered shares following vesting.
Transocean Ltd. director Frederik Wilhelm Mohn reported routine equity compensation activity and related tax withholding. On May 22, 2026, he exercised derivatives to acquire 82,353 Registered Shares at $6.81 per share and received a grant of 30,435 Restricted Units, which are 1‑for‑1 registered share equivalents under the company’s long‑term incentive plan. The new Restricted Units vest on the earlier of May 22, 2027 or the next annual general meeting and will be settled in registered shares after vesting. On May 26, 2026, 25,597 Registered Shares were withheld and sold to satisfy tax withholding obligations upon vesting of prior awards. After these transactions, Mohn holds 78,904 Registered Shares directly and is the indirect beneficial owner of 96,574,894 Registered Shares held by Perestroika (Cyprus) Ltd., a subsidiary of Perestroika AS, which he ultimately owns.
CHANG VANESSA C L reported acquisition or exercise transactions in this Form 4 filing.
Transocean Ltd. director Vanessa C L Chang received a grant of 30,435 Restricted Units as equity compensation. Each unit represents a 1-for-1 equivalent of a registered share. The award vests on the earlier of May 22, 2027, or the next Annual General Meeting following the May 22, 2026 grant date, and will be settled in registered shares after vesting. Following this grant, she holds 30,435 Restricted Units directly.
INTRIERI VINCENT J reported acquisition or exercise transactions in this Form 4 filing.
Transocean Ltd. director Vincent J. Intrieri received a grant of 30,435 Restricted Units as equity compensation. Each unit is a 1-for-1 equivalent of a registered share. The award was granted under the company’s long-term incentive plan and is held directly.
The Restricted Units vest on the earlier of May 22, 2027 or the date of the next Annual General Meeting of shareholders following the May 22, 2026 grant date. After vesting, the units will be settled in registered shares of Transocean pursuant to the award’s terms, and Intrieri’s reported balance for this award is 30,435 units following the transaction.
DELL'OSSO DOMENIC J JR reported acquisition or exercise transactions in this Form 4 filing.
Transocean Ltd. director Domenic J. Dell'Osso Jr. received a grant of 30,435 Restricted Units, each equal to one registered share. These units were awarded under the company’s long-term incentive plan and vest on the earlier of May 22, 2027, or the next Annual General Meeting. After this compensation grant, he holds 30,435 units directly, with no shares bought or sold in the market.
Curado Frederico F. reported acquisition or exercise transactions in this Form 4 filing.
Transocean Ltd. granted director Frederico F. Curado 30,435 Restricted Units as equity compensation. These units are 1-for-1 equivalents of Transocean registered shares and were awarded at no cash cost to him under the company’s long-term incentive plan.
The Restricted Units will vest on the earlier of May 22, 2027 or the date of the next Annual General Meeting of shareholders following the May 22, 2026 grant. Once vested, they will be settled in registered shares of Transocean, giving Curado 30,435 shares if all units vest.
Barker Glyn Anthony reported acquisition or exercise transactions in this Form 4 filing.
Transocean Ltd. director Glyn Anthony Barker received a grant of 30,435 Restricted Units on May 22, 2026 under the company’s long-term incentive plan. These units are 1-for-1 equivalents of registered shares and were awarded at a stated price of $0.00 per unit as equity compensation.
The Restricted Units vest on the earlier of May 22, 2027 or the date of the next Annual General Meeting of shareholders following the May 22, 2026 grant date. After vesting, they will be settled in registered shares, bringing Barker’s reported holdings in this award to 30,435 units.
MERKSAMER SAMUEL J. reported acquisition or exercise transactions in this Form 4 filing.
Transocean Ltd. director Samuel J. Merksamer received a grant of 30,435 Restricted Units, each equal to one registered share. The grant was made on May 22, 2026 under the company’s long-term incentive plan and will vest on the earlier of May 22, 2027 or the next Annual General Meeting following the grant date. Once vested, the units will be settled in registered shares according to the award terms.
Transocean Ltd. executive vice president and chief legal officer Brady K. Long reported an open-market sale of 81,741 registered shares at a weighted average price of $7.45 per share. After this transaction, he beneficially owns 1,125,438 shares. The filing also notes a prior transfer of shares to his former spouse pursuant to a domestic relations order.
Transocean Ltd. director and CEO Keelan Adamson reported routine equity compensation activity involving restricted share units. On May 1, 2026, one third of a prior grant of restricted units vested, giving him 180,931 registered shares under the company’s long-term incentive plan. On May 4, 2026, 71,556 of these shares were delivered to satisfy tax obligations associated with the vesting. After these transactions, Adamson directly holds 1,600,884 registered shares.
Transocean Ltd. executive Roderick James Mackenzie reported an open-market sale of company shares. As EVP and Chief Commercial Officer, he sold 78,370 registered shares of Transocean on March 4, 2026, at a price of $6.36 per share in a direct transaction. After this sale, he continued to hold 268,025 Transocean shares directly.
Transocean Ltd. executive vice president and chief financial officer Robert Thaddeus Vayda reported multiple equity award transactions in registered shares. On March 1, 2026, he acquired 17,991, 22,837, 21,880 and 93,964 registered shares through exercises of restricted units at $6.25 per share as portions of prior long‑term incentive awards vested.
On March 3, 2026, Vayda disposed of 62,970 registered shares at $6.12 per share to satisfy tax withholding obligations upon vesting, rather than through an open‑market sale. After these transactions, he held 352,635 registered shares directly. He also reports indirect ownership of 91 registered shares held by a child, for which he disclaims beneficial ownership.
Transocean Ltd. director and CEO Keelan Adamson reported equity award activity involving company registered shares. On March 1, 2026, he acquired 67,731, 104,397 and 146,048 registered shares through exercises of vested restricted units that were granted under Transocean’s long‑term incentive plan in 2023, 2024 and 2025.
The footnotes explain these restricted units are 1‑for‑1 share equivalents, with remaining portions scheduled to vest in March 2027 and March 2028. On March 3, 2026, 127,878 shares were disposed of at $6.12 per share to satisfy tax withholding obligations upon vesting, a tax-withholding disposition rather than an open-market sale. After these transactions, Adamson directly owned 1,491,509 registered shares.
Transocean Ltd. senior vice president and chief accounting officer Jason Pack reported equity transactions tied to vesting restricted share units. On March 1, 2026, multiple tranches of restricted units vested, giving him the right to receive registered shares at prices around $6.25 per share under the long‑term incentive plan.
Footnotes state these restricted units are 1‑for‑1 share equivalents from grants made in 2023, 2024, and 2025, with additional units scheduled to vest in 2027 and 2028. On March 3, 2026, 27,962 registered shares at $6.12 per share were disposed of to satisfy tax withholding obligations upon vesting, leaving him with 262,103 registered shares held directly.
Transocean Ltd. executive Brady K. Long reported multiple equity award transactions in company registered shares. On March 1, 2026, he acquired 52,778, 66,993 and 98,406 shares through exercises of previously granted restricted units at $6.25 per share as those units vested under Transocean’s long-term incentive plan.
Footnotes explain these restricted units were 1-for-1 share equivalents granted in 2023, 2024 and 2025, with additional units scheduled to vest in 2027 and 2028. On March 3, 2026, 87,689 shares were sold at $6.12 per share solely to satisfy tax withholding obligations upon vesting, leaving Long with 1,238,098 directly owned shares.
Transocean Ltd. executive chair Jeremy Thigpen reported a mix of share vesting, option exercises, and a tax‑related share disposition. On March 1, 2026, he acquired blocks of 193,518, 245,640, and 171,821 registered shares through the exercise or vesting of long‑term incentive awards.
On March 3, 2026, he disposed of 245,556 registered shares at $6.12 per share to satisfy tax‑withholding obligations associated with these awards, rather than an open‑market sale. After these transactions, Thigpen directly owned 2,614,548 Transocean registered shares.
Transocean Ltd. EVP and Chief Commercial Officer Roderick James Mackenzie reported multiple equity award transactions in company registered shares. On March 1, 2026, he acquired 34,924, 50,663 and 70,876 registered shares through the vesting and conversion of previously granted restricted units under Transocean’s long‑term incentive plan.
On March 3, 2026, 62,886 registered shares were disposed of at $6.12 per share to satisfy tax withholding obligations tied to these vestings. After these transactions, Mackenzie directly held 346,395 registered shares.
Transocean Ltd. executive Robert Thaddeus Vayda, EVP and Chief Financial Officer, reported equity compensation and related share activity. On February 5, 2026, 34,726 registered shares were acquired at $0 following the vesting of deferred units from the 2023–2025 performance cycle. On the same date, he was granted 239,740 restricted units under the long-term incentive plan, which are scheduled to vest in three equal annual installments from March 1, 2027 through March 1, 2029. On February 6, 2026, 10,947 registered shares were sold at $4.99 solely to satisfy tax withholding obligations upon vesting. Following these transactions, he directly held 258,933 registered shares and 239,740 restricted units, while 91 registered shares were held indirectly by a child, with beneficial ownership of those indirect shares disclaimed.
Transocean Ltd.'s executive chair Jeremy Thigpen reported several equity compensation transactions. On February 5, 2026, 373,534 registered shares were acquired at $0 following the vesting of deferred units tied to the company’s 2023–2025 performance cycle. That same day, he was granted 407,332 restricted units under Transocean’s long-term incentive plan, scheduled to vest in three equal tranches on March 1, 2027, March 1, 2028, and March 1, 2029. On February 6, 2026, 147,729 shares were sold at $4.99 per share to cover tax withholding obligations related to the vesting, leaving him with 2,362,028 registered shares held directly.
Transocean Ltd. executive vice president and chief legal officer Brady K. Long reported multiple equity compensation transactions. On February 5, 2026, he acquired 101,873 registered shares at $0 upon vesting of deferred units tied to Transocean’s 2023–2025 performance cycle and was granted 233,290 restricted units under the company’s long-term incentive plan. These restricted share units are scheduled to vest in three equal tranches of 77,763 shares on March 1, 2027 and March 1, 2028, and 77,764 shares on March 1, 2029. On February 6, 2026, Long disposed of 40,294 registered shares at $4.99 per share in a transaction identified as shares sold upon vesting to satisfy tax withholding obligations. After these transactions, he beneficially owned 1,107,610 registered shares directly, as well as 233,290 restricted units.
Transocean Ltd. executive Mackenzie Roderick James, EVP and Chief Commercial Officer, reported equity compensation and related share activity. On February 5, 2026, 67,411 registered shares vested at $0, increasing his directly held registered shares to 279,483. The same day he received 204,939 restricted units under Transocean’s long-term incentive plan, which are scheduled to vest in three equal installments of 68,313 shares on March 1 of 2027, 2028, and 2029. On February 6, 2026, 26,665 registered shares were sold at $4.99 per share to satisfy tax withholding obligations, leaving 252,818 registered shares held directly, in addition to the 204,939 restricted units.
Transocean Ltd. executive Jason Pack, SVP and Chief Accounting Officer, reported equity compensation and related share activity. On February 5, 2026, he acquired 29,211 registered shares at $0 upon vesting of deferred units tied to the 2023-2025 performance cycle, bringing his direct holdings to 232,053 registered shares.
On the same date, he received 76,629 restricted units under Transocean’s long-term incentive plan, scheduled to vest in three equal installments of 25,543 units on March 1, 2027, March 1, 2028, and March 1, 2029. On February 6, 2026, he disposed of 11,557 registered shares at $4.99 per share to satisfy tax withholding obligations, resulting in 220,496 registered shares held directly, plus the 76,629 restricted units.
Transocean Ltd. President and CEO Keelan Adamson reported equity compensation activity and related tax withholding transactions. On February 5, 2026, deferred units awarded on February 9, 2023 vested, resulting in the acquisition of 130,738 registered shares at $0, increasing his direct holdings to 1,352,920 registered shares.
On February 6, 2026, he disposed of 51,709 registered shares at $4.99 per share to satisfy tax withholding obligations tied to the vesting, leaving 1,301,211 registered shares held directly. Separately, on February 5, 2026 he was granted 712,831 restricted units at $0 under the long-term incentive plan, all held directly.
These restricted share units vest in three tranches: 237,610 on March 1, 2027, 237,610 on March 1, 2028, and 237,611 on March 1, 2029, aligning his compensation with the company’s long-term performance cycles.
Transocean Ltd.'s EVP & Chief Legal Officer, Brady K. Long, reported pre-planned share sales under a Rule 10b5-1 trading plan. He sold 16,085 registered shares on January 26, 2026 and 99,293 registered shares on January 27, 2026.
The reported weighted average sale prices were about $5.00 per share, with individual trades ranging from $5.00 to $5.02. After these transactions, he directly beneficially owned 1,046,031 registered shares of Transocean.
Transocean Ltd. President and CEO Keelan Adamson sold 81,533 registered shares in pre-planned transactions. The sales occurred on January 26, 2026 and January 27, 2026 at prices around $5.00 per share under a Rule 10b5-1 trading plan adopted on March 28, 2025.
He sold 22,846 shares at $5.00 and 58,687 shares at a weighted average price of $5.00, with individual trades ranging from $5.00 to $5.01. After these transactions, he directly owns 1,222,182 registered shares of Transocean.
Transocean Ltd. reported insider share sales by its President and CEO. The Form 4 shows that on 12/04/2025 and 12/05/2025, the CEO sold 8,469 and 57,968 registered shares of Transocean, respectively, at a price of $4.5 per share. These transactions were coded as open market or private sales.
After these sales, the CEO beneficially owned 1,361,683 shares following the first transaction and 1,303,715 shares following the second, all held directly. The filing notes that these sales were carried out under a Rule 10b5-1 trading plan adopted on March 28, 2025, indicating they were made according to a pre-arranged plan rather than discretionary timing.
Transocean Ltd.'s Executive Vice President and Chief Commercial Officer reported a sale of company stock. On 12/03/2025, the officer sold 35,000 Transocean Ltd. registered shares at a price of $4.48 per share in a transaction coded "S" (sale). After this transaction, the officer directly beneficially owned 212,072 shares of the company.
Transocean Ltd.'s Executive Vice President and Chief Financial Officer reported a stock sale in a Form 4 filing. On 11/26/2025, the officer sold 30,000 registered shares of Transocean at a price of $4.29 per share. After this transaction, the officer directly beneficially owned 235,154 registered shares. The filing also notes indirect beneficial ownership of 91 registered shares held by the officer's child. The officer disclaims beneficial ownership of these indirectly held securities, stating that the report should not be deemed an admission of beneficial ownership for any purpose.
Transocean Ltd. reported that its Executive Chair and director sold 500,000 registered shares of the company’s stock on 11/26/2025. The sale was reported at a weighted average price of $4.32 per share, with individual trade prices ranging from $4.31 to $4.34. Following this transaction, the insider beneficially owned 2,136,223 shares, a figure that already reflects a prior transfer of shares to the reporting person’s former spouse pursuant to a domestic relations order.
Transocean Ltd. (RIG) reported an insider share purchase by Perestroika (Cyprus) Ltd., which is treated as a director by deputization. On 11/24/2025, the entity purchased 1,500,000 registered shares of Transocean at a price of $4.02 per share, coded as a purchase transaction. Following this trade, it beneficially owned 96,574,894 shares, held as direct ownership. Perestroika (Cyprus) Ltd. is a wholly owned subsidiary of Perestroika AS, which is solely owned and directed by Mr. Frederik Mohn, making him the indirect beneficial owner of these securities.
Transocean Ltd. (RIG) reported an insider equity purchase linked to its board. On 11/24/2025, Perestroika (Cyprus) Ltd., which may be deemed a director of the company by deputization, acquired 1,500,000 registered shares of Transocean at $4.02 per share. Following this transaction, Perestroika (Cyprus) Ltd. held 96,574,894 shares indirectly. These securities are held through Perestroika (Cyprus) Ltd., a wholly owned subsidiary of Perestroika AS, for which Mr. Frederik Mohn is the sole director and owner, making him the indirect beneficial owner of these holdings.
Transocean Ltd. (RIG) director Frederik Mohn, through Perestroika (Cyprus) Ltd., reported buying 1,500,000 registered shares on 11/24/2025 at $4.02 per share.
After this transaction, the filing shows 96,574,894 registered shares beneficially owned indirectly. The report identifies Mohn as the sole director and owner of Perestroika AS, which wholly owns Perestroika (Cyprus) Ltd., making him the indirect beneficial owner of these securities.
Transocean (RIG) reported an insider transaction by its EVP and Chief Commercial Officer. On 10/31/2025, the executive sold 53,769 Registered Shares at $3.86 per share (Transaction Code S). After the sale, the executive directly beneficially owns 247,072 shares.
Transocean Ltd. (via Transocean International Limited) reported an insider transaction at Nauticus Robotics (KITT). On 10/28/2025, Transocean International Limited converted debt into equity, acquiring 2,144,295 shares of Nauticus common stock at a conversion price of $1.76 per share under a 2023 senior secured term loan.
Following the conversion, the filing shows 2,150,716 shares beneficially owned indirectly, which includes 6,421 Earnout Shares issuable on or before September 9, 2027 under merger earnout terms. The transaction reflects a non-cash conversion of $3,000,000 in principal together with accrued interest into equity, simplifying the lender’s position to common stock exposure.
Transocean Ltd. (RIG) disclosed an insider transaction on a Form 4. The company’s EVP & Chief Legal Officer sold 97,090 shares on 10/24/2025 at $4 per share pursuant to a Rule 10b5-1 trading plan adopted on March 11, 2025. After the sale, the reporting person directly owned 1,161,409 shares.
Transocean Ltd. (RIG) reported an insider transaction on Form 4. The reporting person, who serves as Director and President and CEO, sold 40,942 shares at $4 on 10/24/2025.
Following the sale, the reporting person beneficially owned 1,370,152 shares. The sales were made pursuant to a Rule 10b5-1 trading plan adopted on March 28, 2025.
Transocean Ltd. (RIG) Form 4 summary: The reporting person, Perestroika (through Perestroika AS), acquired 4,000,000 registered shares on 09/26/2025 at $3.05 per share in a registered public offering. After the transaction, Perestroika beneficially owned 95,074,894 shares indirectly via Perestroika (Cyprus) Ltd. The filing identifies the reporting entity as a director and a 10% owner. The disclosure states Perestroika (Cyprus) Ltd. is a wholly owned subsidiary of Perestroika AS and that Mr. Frederik Mohn is the sole director and owner of Perestroika AS and the indirect beneficial owner of the securities. The form is signed by /s/ Daniel Ro-Trock by Power of Attorney dated 09/30/2025. The filing notes Perestroika AS's prior right to designate a board member has terminated.