RIG insider files Form 144 to sell 66,437 common shares

An affiliate of RIG has filed a Form 144 notice covering the proposed sale of 66,437 common shares through Morgan Stanley Smith Barney on the NYSE, with an indicated aggregate market value of $295,644.65.

Accepted by SEC EDGAR 12/04/2025 - 04:42 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

An affiliate of RIG has filed a Form 144 notice covering the proposed sale of 66,437 common shares through Morgan Stanley Smith Barney on the NYSE, with an indicated aggregate market value of $295,644.65. These shares were acquired as restricted stock units from the issuer on 03/01/2024 and became deliverable in that amount.

The notice states that there were 1,101,441,205 common shares outstanding at the time referenced. It also discloses that, during the past three months, a related Rule 10b5-1 trading arrangement for Keelan Adamson sold 40,942 common shares on 10/24/2025 for gross proceeds of $163,768.00. By signing, the seller represents they are not aware of undisclosed material adverse information about the issuer.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does this Form 144 filing for RIG disclose?

This Form 144 discloses a planned sale of 66,437 common shares of RIG on the NYSE, providing details on how the shares were acquired, how many are outstanding, and recent related sales.

How many RIG shares are planned to be sold and what is the market value?

The filing covers a proposed sale of 66,437 common shares with an aggregate market value of $295,644.65, to be executed through Morgan Stanley Smith Barney LLC.

How and when were the 66,437 RIG shares acquired?

The 66,437 common shares were acquired on 03/01/2024 as restricted stock units from the issuer, with the amount and acquisition date shown in the filing.

How many RIG shares were outstanding at the time referenced in the Form 144?

The filing reports that there were 1,101,441,205 common shares outstanding for the issuer, providing context for the size of the planned sale.

What RIG stock sales occurred in the last three months under the same account?

During the past three months, a Rule 10b5-1 arrangement for Keelan Adamson sold 40,942 common shares of RIG on 10/24/2025, generating gross proceeds of $163,768.00.

What representation does the seller make about RIG in this Form 144?

By signing the notice, the seller represents that they do not know any material adverse information about the issuer’s current or prospective operations that has not been publicly disclosed.

Which broker will handle the planned RIG share sale?

The planned sale of 66,437 RIG common shares is to be handled by Morgan Stanley Smith Barney LLC Executive Financial Services at 1 New York Plaza, New York, NY.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001750415
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	TRANSOCEAN LTD.
SEC File Number	001-38373
Address of Issuer	Turmstrasse 30 Steinhausen SWITZERLAND 6312
Phone	41417490500
Name of Person for Whose Account the Securities are To Be Sold	KEELAN ADAMSON
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	66437	295644.65	1101441205	12/04/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	03/01/2024	Restricted Stock Units	Issuer			66437	03/01/2024	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for KEELAN ADAMSON Turmstrasse 30 Steinhausen V8 6312	Common	10/24/2025	40942	163768.00

144: Remarks and Signature

Remarks
Date of Notice	12/04/2025
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/28/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Keelan Adamson
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)