Seagate Technology Holdings plc (STX) insider reports RSU vesting, share sale

Rhea-AI Filing Summary

Seagate Technology Holdings plc executive vice president and chief technology officer John C. Morris reported insider equity transactions involving the company’s ordinary shares. On 12/11/2025, 941 restricted share units converted into ordinary shares at an exercise price of $0, bringing his direct holdings to 14,793 shares. That same day, 430 ordinary shares were disposed of at a price of $307.845 per share, leaving him with 14,363 directly held shares. Following these transactions, he also beneficially owned 6,594 restricted share units with a $0 exercise price, from a grant that vests over four years, with one-quarter vesting on September 11, 2024 and the remainder in equal quarterly installments over the next three years.

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

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

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^*

Morris John Christopher

(Last) (First) (Middle)

SEAGATE TECHNOLOGY 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 & CTO

3. Date of Earliest Transaction (Month/Day/Year)
12/11/2025

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	12/11/2025		M		941	A	$0	14,793	D
Ordinary Shares	12/11/2025		F		430	D	$307.845	14,363	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
Restricted Share Unit	$0	12/11/2025		M			941	(1)	(1)	Ordinary Shares	941	$0	6,594	D

Explanation of Responses:

1. Consists of a grant of restricted share unit awarded to the reporting person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan. Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 11, 2024 and then in equal quarterly installments over the following three years for a total vesting period of four years.

Remarks:

	/s/ Louis J. Thorson, Attorney-in-Fact for John C. Morris	12/12/2025
	** 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

What insider transaction did Seagate (STX) report for its EVP & CTO?

The EVP & CTO, John C. Morris, reported that on 12/11/2025, 941 restricted share units converted into ordinary shares at an exercise price of $0, and 430 ordinary shares were disposed of at $307.845 per share.

How many Seagate (STX) shares does the EVP & CTO hold after the December 11, 2025 transactions?

After the 12/11/2025 transactions, the EVP & CTO directly holds 14,363 ordinary shares of Seagate Technology Holdings plc.

What restricted share units does the Seagate (STX) EVP & CTO still beneficially own?

Following the reported transactions, the EVP & CTO beneficially owns 6,594 restricted share units with an exercise price of $0, each linked to Seagate ordinary shares.

What is the vesting schedule of the reported Seagate (STX) restricted share unit grant?

The restricted share unit grant consists of awards under the Seagate Technology Holdings plc 2022 Equity Incentive Plan, with one-quarter vesting starting on September 11, 2024 and the remaining units vesting in equal quarterly installments over the following three years, for a total vesting period of four years.

At what price were Seagate (STX) shares disposed of in the reported transaction?

In the reported transaction coded "F" on 12/11/2025, 430 ordinary shares of Seagate Technology Holdings plc were disposed of at a price of $307.845 per share.

Under which plan were the reported Seagate (STX) restricted share units granted?

The restricted share units were granted to the EVP & CTO under the Seagate Technology Holdings plc 2022 Equity Incentive Plan.