Robert Thaddeus Vayda - 26 Nov 2025 Form 4 Insider Report for Transocean Ltd. (RIG)

Role: EVP, Chief Financial Officer
Signature: /s/ Debra Kupferman by Power of Attorney
Issuer symbol: RIG
Transactions as of: 26 Nov 2025
Transactions value $: -$128,700
Form type: 4
Filing time: 01 Dec 2025, 17:07:41 UTC
Previous filing: 02 Jun 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Vayda Robert Thaddeus	EVP, Chief Financial Officer	1414 ENCLAVE PARKWAY, HOUSTON	/s/ Debra Kupferman by Power of Attorney	01 Dec 2025	0002022236

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RIG	Registered Shares	Sale	-$129K	-30K	-11.31%	$4.29	235K	26 Nov 2025	Direct
holding	RIG	Registered Shares						91	26 Nov 2025	By Child	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.