Seagate (STX) Insider Plans Further Share Sale After 86K Shares Sold

Rhea-AI Filing Summary

Form 144 filed for Seagate Technology Holdings plc (STX) discloses that insider Ban Seng Teh plans to sell 5,905 common shares through Morgan Stanley Smith Barney on or about 1 Aug 2025. At the 07/29/25 reference price the sale is valued at roughly $0.92 million, representing about 0.003% of STX’s 212.7 million shares outstanding.

The filing also lists Teh’s prior activity under Rule 144 during the past three months: 86,569 shares sold between 27 May – 11 Jul 2025 across 17 transactions, including a single block of 59,463 shares on 4 Jun 2025. Gross proceeds from the disclosed sales exceed $10 million.

No adverse non-public information is asserted, and the seller affirms compliance with Rule 10b5-1 provisions. While routine, continued insider dispositions may attract investor attention due to their size and frequency.

Positive

• None.

Negative

• Insider selling trend: Ban Seng Teh disposed of 86,569 shares in the last three months and intends to sell another 5,905 shares, potentially signaling reduced confidence.
• Sizeable cash proceeds: Aggregate sales exceed $10 million, a meaningful liquidation despite representing a small fraction of total shares.

Insights

Securities Analyst

TL;DR: Insider plans $0.9 m sale after 86.6 k shares already sold; signals potential bearish insider sentiment but routine Rule 144 filing.

The notice adds another 5,905 shares (<~$0.92 m) to an already heavy three-month disposal schedule by Ban Seng Teh (86,569 shares, >$10 m proceeds). Although Rule 144 filings are administrative, the sustained selling cadence—highlighted by a 59,463-share block—could be interpreted as diminished insider conviction in near-term upside or simple diversification. The stake sold is small versus STX’s 213 m shares outstanding, limiting direct float impact. Market reaction will hinge on whether investors view the activity as personal liquidity management or a read-through on fundamentals.

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	5905	915275.00	212677178	08/01/2025	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	02/20/2025	Performance Shares	Issuer			5905	02/20/2025	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	07/11/2025	1725	248400.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	06/16/2025	599	77870.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	06/11/2025	1723	222353.15
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	06/09/2025	599	77870.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	06/09/2025	599	77870.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	06/09/2025	599	77870.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	06/09/2025	599	77870.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	06/09/2025	599	77870.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	06/09/2025	599	77870.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	06/04/2025	3955	494422.46
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	06/04/2025	59463	7432875.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	06/03/2025	4386	526320.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	06/03/2025	6923	830760.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	05/27/2025	345	39675.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	05/27/2025	28	3220.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	05/27/2025	314	36110.00
BAN SENG TEH 121 Woodlands Avenue 5 Singapore U0 739009	Common	05/27/2025	3514	404110.00

144: Remarks and Signature

Remarks

Date of Notice

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

How many Seagate (STX) shares does the insider plan to sell?

The Form 144 lists a proposed sale of 5,905 common shares.

What is the estimated value of the planned STX share sale?

Based on the filing, the shares are valued at approximately $915,275.

When is the STX insider sale expected to occur?

The approximate sale date disclosed is 01 Aug 2025.

How many STX shares has the same insider sold recently?

The filing details 86,569 shares sold between 27 May and 11 Jul 2025.

What percentage of Seagate’s shares does the new sale represent?

The 5,905 shares equal roughly 0.003 % of the 212,677,178 shares outstanding.