[144] Seagate Technology Holdings PLC SEC Filing

Rhea-AI Filing Summary

Form 144 notice filed for Seagate Technology Holdings PLC (STX) showing a proposed sale of 3,732 common shares valued at $721,395.60 to be executed through Morgan Stanley Smith Barney on 09/11/2025 on NASDAQ. The filer reports recent acquisitions by stock option exercise (1,725 shares) and restricted stock (2,007 shares) in September 2025, and discloses multiple sales by the same account totaling 21,836 shares for gross proceeds of $3,839,974.57 across June–September 2025.

The filing is a Rule 144 compliance notice; it contains transaction dates, quantities, gross proceeds for recent sales, broker details, and a declaration that the seller is unaware of undisclosed material adverse information.

Positive

• Regulatory compliance: A live Rule 144 notice was filed with broker, quantities, values, and execution date specified
• Transaction transparency: Recent acquisitions and multiple sales are fully disclosed with gross proceeds and dates

Negative

• Insider selling concentration: Multiple sales totaling 21,836 shares and about $3.84m in gross proceeds over three months may be viewed negatively by investors
• No 10b5-1 plan date provided: Filing does not state a trading-plan adoption date, leaving uncertainty whether sales are pre-planned or opportunistic

Insights

Securities Analyst

TL;DR: Insider selling is noticeable but may reflect routine liquidity rather than company-specific distress.

The Form 144 documents a proposed sale of 3,732 shares valued at $721k and multiple recent sales totaling 21,836 shares and ~$3.84m in gross proceeds over three months. From an investor perspective, concentrated insider sales over a short period warrant attention because they increase share supply and may signal personal liquidity needs or portfolio rebalancing. The filing does not provide any internal company performance details; therefore, it is not, by itself, evidence of operational problems. Monitor subsequent Form 4s or company disclosures for context.

Corporate Governance Expert

TL;DR: The notice shows consistent disposition activity; governance context and plan dates are absent.

The filer used Rule 144 procedures and identified the broker and execution date, which supports regulatory compliance. However, the filing lacks mention of a pre-established trading plan (Rule 10b5-1) or plan adoption dates, which would clarify whether sales are scheduled or opportunistic. Repeated sales by the same person in successive months could raise governance questions about insider incentives and should prompt disclosure checks for any related-party transactions or material events.

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
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	3732	721395.60	212677178	09/11/2025	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	09/11/2025	Stock Option Exercise	ISSUER			1725	09/11/2025	Cash
Common	09/09/2025	Restricted Stock	ISSUER			2007	09/09/2025	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

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	09/10/2025	6781	1298764.93
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	08/11/2025	1724	261375.64
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	08/01/2025	5905	915275.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	07/11/2025	1725	248400.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	06/16/2025	599	77870.00

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the Form 144 filed for STX report?

The Form 144 reports a proposed sale of 3,732 common shares valued at $721,395.60 through Morgan Stanley Smith Barney for execution on 09/11/2025 on NASDAQ.

How many shares were sold previously by the same account in the last three months?

The filing lists five prior sales totaling 21,836 shares with gross proceeds of $3,839,974.57 between 06/16/2025 and 09/10/2025.

Were any shares recently acquired before this sale?

Yes. The filer reports acquisitions on 09/11/2025 (stock option exercise, 1,725 shares, paid in cash) and 09/09/2025 (restricted stock, 2,007 shares).

Does the filing state whether the sales are part of a 10b5-1 trading plan?

No. The filing does not provide a date of plan adoption or indicate reliance on a 10b5-1 trading plan.

Which broker is handling the proposed sale?

The proposed sale is to be handled by Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004.