Robert Thaddeus Vayda - 05 Feb 2026 Form 4 Insider Report for Transocean Ltd. (RIG)

Reporting relationship: EVP, Chief Financial Officer
Issuer ticker: RIG
Reported as of: 05 Feb 2026
Net transaction value: -$54,626
SEC form: 4
Accepted by SEC: 09 Feb 2026, 18:13:58 UTC
Prior SEC filing: 01 Dec 2025
Next SEC filing: 03 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Debra Kupferman by Power of Attorney

Key filing fact

Robert Thaddeus Vayda filed Form 4 for Transocean Ltd. (RIG) on 09 Feb 2026.

Key facts

This page summarizes Robert Thaddeus Vayda's Form 4 filing for Transocean Ltd. (RIG).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 09 Feb 2026, 18:13.

Change

Previous filing in this sequence was filed on 01 Dec 2025.
Current net transaction value: -$54,626.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002022236 Primary reporting owner

Vayda Robert Thaddeus

Relationship: EVP, Chief Financial Officer
Address: 1414 ENCLAVE PARKWAY, HOUSTON
Signature: /s/ Debra Kupferman by Power of Attorney
Signature date: 09 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

RIG transaction

Registered Shares

Options Exercise

Transaction value: $0
Shares: +34,726
Change %: +15%
Price: $0.000000
Shares after: 269,880
Date: 05 Feb 2026
Ownership: Direct
Footnotes: F1

RIG transaction

Registered Shares

Tax liability

Transaction value: $54,626
Shares: -10,947
Change %: -4.1%
Price: $4.99
Shares after: 258,933
Date: 06 Feb 2026
Ownership: Direct
Footnotes: F2

RIG holding

Registered Shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 91
Date: 05 Feb 2026
Ownership: By Child
Footnotes: F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

RIG transaction Derivative

Restricted Units

Award

Transaction value: $0
Shares: +239,740
Change %
Price: $0.000000
Shares after: 239,740
Date: 05 Feb 2026
Ownership: Direct
Underlying class: Registered Shares
Underlying amount: 239,740
Exercise price: $0.000000
Footnotes: F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

Deferred Units awarded on February 9, 2023, vested on February 5, 2026, upon satisfaction of the applicable performance measures pursuant to the Issuer's 2023-2025 performance cycle

Footnote F2

Shares sold upon vesting to satisfy tax withholding obligations.

Footnote F3

The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.

Footnote F4

The Restricted Units were acquired on February 5, 2026, by the reporting person pursuant to the Issuer's long-term incentive plan. The restricted share units vest as follows: 79,913 on March 1, 2027; 79,913 on March 1, 2028; and 79,914 on March 1, 2029.