Seagate officer plans $41.2M Rule 144 stock sale

Seagate Technology Holdings plc (STX) received a notice that officer Ban Seng Teh has filed to sell 52,730 shares of Seagate common stock under Rule 144 through Morgan Stanley Smith Barney LLC Executive Financial Services on NASDAQ.

Available on EDGAR 09/15/2026 - 04:22 PM EDT Accepted by SEC EDGAR 09/15/2026 - 04:21 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Seagate Technology Holdings plc (STX) received a notice that officer Ban Seng Teh has filed to sell 52,730 shares of Seagate common stock under Rule 144 through Morgan Stanley Smith Barney LLC Executive Financial Services on NASDAQ. The notice lists prior Rule 144 sales of Seagate common stock by the same person during the past three months.

Key Figures

Shares proposed for sale: 52,730 shares Aggregate market value of proposed sale: $41,239,128.49 Common shares referenced: 226,644,518 shares +3 more

6 metrics

Shares proposed for sale 52,730 shares Common stock covered by the Rule 144 notice

Aggregate market value of proposed sale $41,239,128.49 Value listed for 52,730 common shares in the securities information

Common shares referenced 226,644,518 shares Common stock figure shown in the securities information section

Recent sale on August 13, 2026 7,361 shares; $6,778,028.17 Seagate common shares sold by Ban Seng Teh during the past three months

Recent sale on August 20, 2026 6,048 shares; $5,098,254.74 Seagate common shares sold by Ban Seng Teh during the past three months

Recent sale on August 21, 2026 9,862 shares; $8,411,971.40 Seagate common shares sold by Ban Seng Teh during the past three months

Key Terms

Rule 144, Performance Shares, NASDAQ

3 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.

Performance Shares financial

"Common | 09/14/2026 | Performance Shares | ISSUER"

Performance shares are a type of company stock given to executives or employees that only become theirs if the company meets specific goals, like hitting certain profits or growth targets. They motivate leaders to work toward the company’s success, because their additional shares depend on achieving these results.

NASDAQ market

"09/15/2026 | NASDAQ"

The Nasdaq is a stock exchange where many companies' shares are bought and sold, functioning much like a marketplace for investments. It matters to investors because it provides a platform to buy and sell ownership stakes in companies, helping them track the value of those companies and make informed decisions. As one of the largest and most technology-focused markets, it also reflects trends and developments in the business world.

FAQ

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

What does the Form 144 filing disclose for Seagate Technology Holdings plc (STX)?

The filing discloses that officer Ban Seng Teh has filed a Rule 144 notice to potentially sell 52,730 shares of Seagate common stock through Morgan Stanley Smith Barney LLC Executive Financial Services on NASDAQ.

How many Seagate (STX) shares are proposed to be sold under this Form 144?

The notice covers a proposed sale of 52,730 shares of Seagate common stock. The securities are identified as Performance Shares, with the issuer listed as Seagate Technology Holdings plc.

What is the aggregate market value associated with the proposed Seagate (STX) sale?

The Form 144 lists an aggregate market value of $41,239,128.49 for the 52,730 Seagate common shares covered by the notice, based on the information provided in the securities section.

Which broker is involved in the proposed Seagate (STX) share sale under Rule 144?

The shares are to be sold through Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004, as listed in the securities information section.

What Seagate (STX) shares has Ban Seng Teh sold in the past three months?

The filing lists sales of Seagate common stock by Ban Seng Teh in the past three months, including 9,862 shares on August 21, 2026, 6,048 shares on August 20, 2026, and 7,361 shares on August 13, 2026, among other smaller transactions.

What is the total number of Seagate (STX) common shares outstanding referenced in the filing?

The securities information section references 226,644,518 Seagate common shares, presented in the context of the issuer’s common stock information alongside the Form 144 notice.

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	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	52730	41239128.49	226644518	09/15/2026	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	09/14/2026	Performance Shares	ISSUER			52730	09/14/2026	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	09/14/2026	989	770431.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	09/10/2026	663	570239.67
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	08/21/2026	9862	8411971.40
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

144: Remarks and Signature

Remarks
Date of Notice	09/15/2026
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)