Roderick James Mackenzie - 05 Feb 2026 Form 4 Insider Report for Transocean Ltd. (RIG)

Role: EVP, Chief Commercial Officer
Signature: /s/ Debra Kupferman by Power of Attorney
Issuer symbol: RIG
Transactions as of: 05 Feb 2026
Net transactions value: -$133,058
Form type: 4
Filing time: 09 Feb 2026, 17:59:58 UTC
Previous filing: 05 Dec 2025
Next filing: 03 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Mackenzie Roderick James	EVP, Chief Commercial Officer	1414 ENCLAVE PARKWAY, HOUSTON	/s/ Debra Kupferman by Power of Attorney	09 Feb 2026	0002045694

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RIG	Registered Shares	Options Exercise	$0	+67,411	+32%	$0.000000	279,483	05 Feb 2026	Direct	F1
transaction	RIG	Registered Shares	Tax liability	$133,058	-26,665	-9.5%	$4.99	252,818	06 Feb 2026	Direct	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	RIG	Restricted Units	Award	$0	+204,939		$0.000000	204,939	05 Feb 2026	Registered Shares	204,939	$0.000000	Direct	F3

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

Explanation of Responses:

Id	Content
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
F2	Shares sold upon vesting to satisfy tax withholding obligations.
F3	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: 68,313 on March 1, 2027; 68,313 on March 1, 2028; and 68,313 on March 1, 2029.