Seagate officer plans sale of 9,862 shares

Seagate Technology Holdings plc (STX) reports that officer Ban Seng Teh has filed a notice under Rule 144 to sell up to 9,862 common shares of Seagate through Morgan Stanley Smith Barney LLC.

Rhea-AI Filing Summary

Seagate Technology Holdings plc (STX) reports that officer Ban Seng Teh has filed a notice under Rule 144 to sell up to 9,862 common shares of Seagate through Morgan Stanley Smith Barney LLC. The filing lists an aggregate market value of 8,411,971.40 for these shares. Shares outstanding were 226,644,518 as of August 21, 2026; this is a baseline figure, not the amount being sold. In the prior three months, reported sales include 6,048 shares for 5,098,254.74 on August 20, 2026 and 7,361 shares for 6,778,028.17 on August 13, 2026.

Key Figures

Shares to be sold under Rule 144: 9,862 shares Aggregate market value of shares to be sold: 8,411,971.40 Shares outstanding: 226,644,518 shares +4 more

7 metrics

Shares to be sold under Rule 144 9,862 shares Planned sale of Seagate common stock by officer Ban Seng Teh

Aggregate market value of shares to be sold 8,411,971.40 Value associated with the 9,862 shares covered by the notice

Shares outstanding 226,644,518 shares Reported as of August 21, 2026 for Seagate common stock

Shares sold on August 20, 2026 6,048 shares Reported prior sale by Ban Seng Teh during the past three months

Proceeds on August 20, 2026 sale 5,098,254.74 Aggregate amount for the 6,048 shares sold on that date

Shares sold on August 13, 2026 7,361 shares Reported prior sale by Ban Seng Teh during the past three months

Proceeds on August 13, 2026 sale 6,778,028.17 Aggregate amount for the 7,361 shares sold on that date

Key Terms

Rule 144, restricted stock, aggregate market value, securities to be sold

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

restricted stock financial

"Common | 08/20/2026 | Restricted Stock | Issuer"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

aggregate market value financial

"Common | Morgan Stanley Smith Barney LLC ... | 9862 | 8411971.40"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

securities to be sold financial

"144: Securities To Be Sold"

FAQ

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

What does Seagate Technology Holdings plc’s (STX) latest Form 144 disclose?

The Form 144 discloses that officer Ban Seng Teh intends to sell up to 9,862 common shares of Seagate Technology Holdings plc under Rule 144 through Morgan Stanley Smith Barney LLC, with an aggregate market value of 8,411,971.40 reported for the shares covered.

How many Seagate (STX) shares are covered by Ban Seng Teh’s planned Rule 144 sale?

The planned Rule 144 transaction covers up to 9,862 common shares of Seagate Technology Holdings plc. These shares are to be sold through Morgan Stanley Smith Barney LLC as the broker listed in the filing for the prospective sale.

What prior Seagate (STX) share sales by Ban Seng Teh are reported in the last three months?

Reported sales in the last three months include 6,048 shares for 5,098,254.74 on August 20, 2026, 7,361 shares for 6,778,028.17 on August 13, 2026, 989 shares for 870,507.91 on June 12, 2026, and 663 shares for 544,893.18 on June 10, 2026.

What is the reported share count of Seagate (STX) in the Form 144 filing?

The filing reports 226,644,518 shares of Seagate Technology Holdings plc as of August 21, 2026. This figure provides context for the company’s equity base and is separate from the 9,862 shares covered by the planned Rule 144 sale.

On which market are the Seagate (STX) shares in this Form 144 listed?

The Form 144 indicates that the Seagate Technology Holdings plc common shares involved in the planned sale are listed on NASDAQ. The broker for the transaction is identified as Morgan Stanley Smith Barney LLC Executive Financial Services in New York.

What type of shares is Ban Seng Teh planning to sell for Seagate (STX)?

The filing describes the securities to be sold as Seagate Technology Holdings plc common shares, characterized as restricted stock and identified as being sold on behalf of the issuer’s officer under the provisions of Rule 144.

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

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Available on EDGAR 08/21/2026 - 04:33 PM Accepted by SEC EDGAR 08/21/2026 - 04:33 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	0001801425
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	BAN SENG TEH
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	9862	8411971.40	226644518	08/21/2026	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	08/20/2026	Restricted Stock	Issuer			9862	08/20/2026	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	08/20/2026	6048	5098254.74
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	08/13/2026	7361	6778028.17
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	06/12/2026	989	870507.91
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	06/10/2026	663	544893.18

144: Remarks and Signature

Remarks
Date of Notice	08/21/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	02/11/2026
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/ Banseng Teh
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)