Affiliate files Form 144 to sell STX shares

Morgan Stanley Smith Barney LLC Executive Financial Services files a Form 144 reporting proposed sales of STX common shares by an affiliate.

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC Executive Financial Services files a Form 144 reporting proposed sales of STX common shares by an affiliate. The notice lists multiple classes and quantities with trade dates: 379 restricted shares (12/09/2025), 4,427 performance shares (02/20/2026), 201 restricted shares (12/09/2025), 161 Employee Stock Purchase Plan shares (01/30/2026) for cash, and 678 restricted shares (12/11/2025).

This filing documents proposed dispositions by an affiliate; timing and final transaction amounts depend on subsequent sale execution and confirmations.

Insights

Securities Compliance Counsel

Form 144 lists proposed affiliate sales across multiple award types and dates.

The filing enumerates proposed sales of restricted stock, performance shares, and ESPP shares with specific trade dates and quantities: 379, 4,427, 201, 161, and 678 shares. These entries serve as notices under resale rules.

Execution details, proceeds recipient, and whether sales occurred are not shown here; subsequent confirmations or broker reports will indicate completed transactions and cash-flow treatment.

FAQ

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

What does the STX Form 144 filing report?

The filing reports proposed sales of STX common shares by an affiliate. It lists specific award types and quantities with trade dates, including restricted stock and performance shares totaling several thousand shares.

Which types of STX securities are listed for sale in the Form 144?

The notice lists restricted stock, performance shares, and Employee Stock Purchase Plan shares. Each line shows the award type, trade date, and the number of shares proposed for sale.

How many STX performance shares are included in the filing?

The filing shows 4,427 performance shares with a trade date of 02/20/2026. This number is presented as the quantity the affiliate reported for proposed resale.

Are the trade dates for the proposed STX sales included?

Yes. The filing lists trade dates for each line item, including 12/09/2025, 12/11/2025, 01/30/2026, and 02/20/2026, alongside the respective share quantities.

Does Form 144 confirm the sales were completed?

No. Form 144 is a notice of proposed resale by an affiliate; it does not confirm completion. Final execution and settlement details would appear in subsequent broker reports or other filings.

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

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Accepted by SEC EDGAR 02/23/2026 - 04:05 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	0001987421
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	SEAGATE TECHNOLOGY HOLDINGS PUBLIC LIMITED COMPANY
SEC File Number	001-31560
Address of Issuer	121 Woodlands Avenue 5 Singapore SINGAPORE 739009
Phone	(65) 6018-2562
Name of Person for Whose Account the Securities are To Be Sold	KIAN FATT CHONG
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	5846	2434740.47	218073067	02/23/2026	NASDAQ

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	12/09/2025	Restricted Stock	Issuer			379	12/09/2025	Not Applicable
Common	02/20/2026	Performance Shares	Issuer			4427	02/20/2026	Not Applicable
Common	12/09/2025	Restricted Stock	Issuer			201	12/09/2025	Not Applicable
Common	01/30/2026	Employee Stock Purchase Plan	Issuer			161	01/30/2026	Cash
Common	12/11/2025	Restricted Stock	Issuer			678	12/11/2025	Not Applicable

* 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	02/23/2026
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/ Kian Fatt Chong
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)