Transocean (RIG) Form 144: Proposed sale of 40,942 common shares

Transocean Ltd. (RIG) disclosed a Form 144 notice indicating a planned sale of 40,942 shares of common stock through Morgan Stanley Smith Barney LLC, reflecting an aggregate market value of $159,264.38.

Rhea-AI Filing Summary

Transocean Ltd. (RIG) disclosed a Form 144 notice indicating a planned sale of 40,942 shares of common stock through Morgan Stanley Smith Barney LLC, reflecting an aggregate market value of $159,264.38. The shares trade on the NYSE, with an approximate sale date of 10/24/2025.

The shares to be sold were acquired as Restricted Stock Units from the issuer on 03/01/2024 in the same amount. Shares outstanding were 943,124,986; this is a baseline figure, not the amount being sold.

FAQ

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

What did Transocean (RIG) disclose in this filing?

A Form 144 notice for the planned sale of 40,942 shares of common stock.

How many Transocean (RIG) shares are planned for sale and what's the value?

The notice lists 40,942 shares with an aggregate market value of $159,264.38.

When is the approximate sale date for the RIG shares?

The filing lists an approximate sale date of 10/24/2025.

How were the shares to be sold acquired?

They were acquired as Restricted Stock Units from the issuer on 03/01/2024.

Which broker is named for the sale?

The broker is Morgan Stanley Smith Barney LLC.

On which exchange do the shares trade?

The shares are listed on the NYSE.

How many Transocean (RIG) shares were outstanding?

Shares outstanding were 943,124,986 as stated in the notice.

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

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Accepted by SEC EDGAR 10/24/2025 - 04:28 PM Learn about SEC filing dates

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	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	40942	159264.38	943124986	10/24/2025	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			40942	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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	10/24/2025
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)