[Form 4] Seagate Technology Holdings PLC Insider Trading Activity

Rhea-AI Filing Summary

Teh Ban Seng, EVP & Chief Commercial Officer of Seagate Technology Holdings plc (STX), reported transactions on 08/11/2025 executed under a Rule 10b5-1 trading plan adopted on 10/31/2024. On that date he acquired 532 shares at $68.83, 313 shares at $87.34 and 879 shares at $64.31 (total 1,724 shares acquired via option-related transactions) and sold 1,724 shares at $151.61.

The Form 4 shows direct beneficial ownership levels reported after each transaction: 6,679, 6,992, 7,871 and, after the sale, 6,147 ordinary shares. The filing also lists non-qualified (NQ) options associated with the exercised grants, with exercisable/expiration dates including 09/09/2029, 09/09/2028 and 09/11/2030, and explains the options are subject to four-year vesting schedules. All activity is reported as direct ownership and was effected pursuant to the disclosed 10b5-1 plan.

Insights

Securities Analyst

TL;DR: Routine, pre-planned option exercises and an equivalent share sale under a 10b5-1 plan; neutral to investor outlook.

The reporting person executed option-related acquisitions totaling 1,724 ordinary shares and contemporaneously sold 1,724 shares on 08/11/2025, all pursuant to a Rule 10b5-1 plan adopted on 10/31/2024. The filing lists exercise prices of $68.83, $87.34 and $64.31, and a sale price of $151.61. Resulting direct beneficial ownership after the transactions is reported as 6,147 shares. Because the trades were pre-arranged under a 10b5-1 plan and involve option exercises, the action appears administrative rather than a signal of new company-specific information.

Corporate Governance Expert

TL;DR: Transactions comply with a disclosed 10b5-1 plan and include standard vesting language; governance disclosure is complete.

The Form 4 identifies the plan adoption date and provides vesting details for the option grants, noting four-year schedules and specific vesting commencement dates. The filing includes exercisable and expiration dates for the NQ options (09/09/2029, 09/09/2028, 09/11/2030) and signatures consistent with required attestations. From a governance perspective, the disclosure is specific about the plan and vesting terms and therefore meets typical Section 16 transparency expectations.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Teh Ban Seng

(Last) (First) (Middle)

SEAGATE TECHNOLOGY HOLDINGS PLC

47488 KATO ROAD

(Street)

FREMONT CA 94538

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Seagate Technology Holdings plc [ STX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP & Chief Commercial Officer

3. Date of Earliest Transaction (Month/Day/Year)
08/11/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Ordinary Shares	08/11/2025		M		532(1)	A	$68.83	6,679	D
Ordinary Shares	08/11/2025		M		313	A	$87.34	6,992	D
Ordinary Shares	08/11/2025		M		879	A	$64.31	7,871	D
Ordinary Shares	08/11/2025		S		1,724	D	$151.61	6,147	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
NQ Options	$68.83	08/11/2025		M			532	(2)	09/09/2029(2)	Ordinary Shares	532	$0	6,923	D
NQ Options	$87.34	08/11/2025		M			313	(3)	09/09/2028(3)	Ordinary Shares	313	$0	313	D
NQ Options	$64.31	08/11/2025		M			879	(4)	09/11/2030(4)	Ordinary Shares	879	$0	21,969	D

Explanation of Responses:

1. All transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on October 31, 2024.

2. Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 9, 2023 and the remaining options vest in equal monthly installments over the 36 months following September 9, 2023.

3. Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One quarter of the options will vest on September 9, 2022 and the remaining options vest in equal monthly installments over the 36 months following September 9, 2022.

4. Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 11, 2024 and the remaining options vest in equal monthly installments over the 36 months following September 11, 2024.

Remarks:

	/s/ Louis J. Thorson, Attorney-in-Fact for Ban Seng Teh	08/12/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

Who filed the Form 4 for Seagate (STX)?

The reporting person is Teh Ban Seng, EVP & Chief Commercial Officer of Seagate Technology Holdings plc.

When were the transactions reported on the Form 4 (STX)?

The transactions were reported with a transaction date of 08/11/2025 and the form was signed on 08/12/2025.

What trades did the reporting person make on 08/11/2025 for STX?

He acquired 532 shares at $68.83, 313 shares at $87.34 and 879 shares at $64.31 and sold 1,724 shares at $151.61, all reported as direct.

Were these trades part of a pre-arranged plan for STX insider activity?

Yes. The filing states all transactions were effected pursuant to a Rule 10b5-1 trading plan adopted on 10/31/2024.

What is the reporting person’s beneficial ownership after the transactions?

The Form 4 reports direct beneficial ownership of ordinary shares after the sale as 6,147 shares.

Are there option details disclosed in the Form 4 for STX?

Yes. The filing lists NQ option entries tied to the exercised shares with exercisable/expiration dates including 09/09/2029, 09/09/2028 and 09/11/2030, and notes four-year vesting schedules.