Form 144: John Morris 10b5-1 Sales Disclosed

Morgan Stanley Smith Barney LLC reported Rule 144 disclosures showing sales of Common Stock by John Morris.

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC reported Rule 144 disclosures showing sales of Common Stock by John Morris. The filing lists 10b5-1 sales of $98,400.00 on 02/24/2026 (240 shares) and $32,983.57 on 12/15/2025 (113 shares). The filing also records Restricted Stock Units dated 03/09/2026.

Insights

Compliance & Insider Transactions Analyst

Rule 144 filings show programmed sales under a 10b5-1 plan and an RSU record.

The excerpt lists two 10b5-1 sales by John Morris: $98,400.00 on 02/24/2026 for 240 shares and $32,983.57 on 12/15/2025 for 113 shares. The entries are labeled as 10b5-1 sales, indicating pre-arranged sale instructions.

It also records Restricted Stock Units dated 03/09/2026 with issuer listed as the source. Cash‑flow treatment and total post‑transaction holdings are not provided in the excerpt; subsequent filings would show position changes if reported.

FAQ

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

What 10b5-1 sales for STX are disclosed in this Form 144?

The Form 144 shows John Morris executed 10b5-1 sales of Common Stock: $98,400.00 on 02/24/2026 for 240 shares and $32,983.57 on 12/15/2025 for 113 shares.

Does the filing show any Restricted Stock Units for STX?

Yes. The filing records Restricted Stock Units dated 03/09/2026 with the issuer listed. The excerpt does not disclose settlement terms, quantities, or cash treatment for those RSUs.

Who is the broker or intermediary listed on the Form 144?

Morgan Stanley Smith Barney LLC is listed as the broker/intermediary at 1 New York Plaza, 8th Floor, New York, NY. The excerpt shows the broker name but does not specify execution details.

Do these entries state whether the sales were discretionary or pre-arranged?

The sales are labeled as 10b5-1 sales, which indicates they were executed under a pre-arranged trading plan. The excerpt does not include additional plan details or scheduling terms.

Are total post-transaction holdings for John Morris provided?

The excerpt does not provide total shares held after the transactions. The Form 144 entries list individual sale amounts and dates but do not include post-transaction ownership figures.

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

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Accepted by SEC EDGAR 03/13/2026 - 04:21 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	0001988271
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 plc
SEC File Number	001-31560
Address of Issuer	121 Woodlands Avenue 5 Singapore SINGAPORE 739009
Phone	6560182562
Name of Person for Whose Account the Securities are To Be Sold	JOHN MORRIS
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	112	41885.76	218073067	03/13/2026	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	03/09/2026	Restricted Stock Units	Issuer			112	03/09/2026	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 JOHN MORRIS 121 Woodlands Avenue 5 Singapore U0 739009	Common	02/24/2026	240	98400.00
10b5-1 Sales for JOHN MORRIS 121 Woodlands Avenue 5 Singapore U0 739009	Common	12/15/2025	113	32983.57

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock units during the period of 3/9/2026 through 3/11/2026.
Date of Notice	03/13/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/01/2025
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/ John Christopher Morris
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)