Transocean (RIG) EVP Mackenzie sells 78,370 shares in open-market trade

Rhea-AI Filing Summary

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.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Mackenzie Roderick James

(Last) (First) (Middle)

1414 ENCLAVE PARKWAY

(Street)

HOUSTON TX 77077

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Transocean Ltd. [ RIG ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Chief Commercial Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/04/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Registered Shares	03/04/2026		S		78,370	D	$6.36	268,025	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Debra Kupferman by Power of Attorney	03/05/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Transocean (RIG) report for Roderick James Mackenzie?

Transocean reported that EVP and Chief Commercial Officer Roderick James Mackenzie sold 78,370 registered shares. The open-market sale occurred at $6.36 per share, and he continued to hold 268,025 shares directly following the transaction.

How many Transocean (RIG) shares did Mackenzie sell and at what price?

Roderick James Mackenzie sold 78,370 Transocean registered shares at $6.36 per share. This was an open-market transaction reported on a Form 4, reflecting a direct disposition of non-derivative shares under his ownership.

What is Roderick James Mackenzie’s role at Transocean (RIG) in this Form 4 filing?

In this Form 4, Roderick James Mackenzie is identified as Transocean’s Executive Vice President and Chief Commercial Officer. The filing shows his personal, direct ownership of registered shares and the open-market sale he executed on March 4, 2026.

How many Transocean (RIG) shares does Mackenzie hold after the reported sale?

After selling 78,370 shares, Roderick James Mackenzie directly holds 268,025 Transocean shares. This post-transaction balance reflects his remaining non-derivative ownership following the open-market sale reported in the Form 4.

Was the Transocean (RIG) insider transaction a buy or sell by Mackenzie?

The transaction was a sell. The Form 4 classifies it with code “S” for a sale in an open-market or private transaction, showing Mackenzie disposed of 78,370 non-derivative registered shares at $6.36 per share.