Seagate (STX) EVP converts restricted stock units into 581 ordinary shares

Rhea-AI Filing Summary

Seagate Technology Holdings plc executive Chong Kian Fatt reported routine equity compensation activity. On March 9, 2026, he exercised restricted share units (RSUs) into a total of 581 ordinary shares at a conversion price of $0.00 per share, reflecting vesting of prior grants.

The RSUs were granted under Seagate’s 2022 Equity Incentive Plan and vest over four years, subject to continued employment. Following these transactions, Chong holds 581 ordinary shares directly, while RSU balances from the two referenced grants stand at 404 and 3,791 units, respectively.

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

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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^*

Chong Kian Fatt

(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 Global Operations

3. Date of Earliest Transaction (Month/Day/Year)
03/09/2026

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	03/09/2026		M		202	A	$0	202	D
Ordinary Shares	03/09/2026		M		379	A	$0	581	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	03/09/2026		M			202	(1)	(1)	Ordinary Shares	202	$0	404	D
Restricted Share Unit	$0	03/09/2026		M			379	(2)	(2)	Ordinary Shares	379	$0	3,791	D

Explanation of Responses:

1. Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). Subject to the Reporting Person's continuous employment, such RSUs vested as to one-quarter of the shares on September 9, 2023 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years.

2. Consists of a grant of RSUs awarded to the Reporting Person under the 2022 Plan. Subject to the Reporting Person's continuous employment, one-quarter vested on September 9, 2025 and the remaining portion shall vest 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 Kian Fatt Chong	03/11/2026
	** 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.
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FAQ

What insider transaction did Seagate (STX) report for Chong Kian Fatt?

Seagate EVP Global Operations Chong Kian Fatt exercised restricted share units into ordinary shares. The Form 4 shows routine equity compensation vesting, not an open-market stock purchase or sale, under Seagate’s 2022 Equity Incentive Plan.

How many Seagate (STX) shares did Chong Kian Fatt acquire in this Form 4?

Chong Kian Fatt acquired 581 ordinary shares of Seagate through the exercise of restricted share units. These shares were issued at a conversion price of $0.00 per share as part of previously granted equity compensation awards.

What equity awards are involved in Chong Kian Fatt’s Seagate (STX) Form 4 filing?

The filing involves restricted share units granted under Seagate’s 2022 Equity Incentive Plan. Two RSU grants continue to vest over four years, leaving post-transaction balances of 404 units in one grant and 3,791 units in the other.

Was Chong Kian Fatt’s Seagate (STX) transaction an open-market trade?

No, the transactions were not open-market trades. They reflect the exercise of restricted share units awarded as compensation, converting RSUs into ordinary shares at a $0.00 exercise price rather than buying or selling shares in the public market.

What vesting schedule applies to Chong Kian Fatt’s Seagate (STX) RSU grants?

Both RSU grants vest over four years, subject to his continuous employment. One-quarter vested on specific September 9 dates, with the remaining portions vesting in equal quarterly installments over the following three years.