Seagate director Mark Adams acquires 1,580 shares

The director's reported activity combines an RSU release and new award with shares delivered or withheld for payment.

Rhea-AI Filing Summary

Seagate Technology Holdings plc (STX) director Mark Adams reported the release of 1,580 restricted share units into 1,580 ordinary shares on October 24, 2026. He also reported a grant of 345 restricted share units for no consideration, subject to continuous service; each unit represents a contingent right to one ordinary share. On that date, 380 ordinary shares were delivered or withheld for payment of exercise price or tax liability, at a reported $630.49 per share.

Insider Trade Summary

1,580 shares exercised/converted

Exercise 4 txns

Insider Adams Mark

Role Director

Type	Security	Shares	Price	Value
Exercise	Restricted Share Unit F1	1,580	$0.00	$0.00
Grant/Award	Restricted Share Unit F2	345	$0.00	$0.00
Exercise	Ordinary Shares	1,580	$0.00	$0.00
Exercise Price or Tax Liability	Ordinary Shares	380	$630.49	$240K

Holdings After Transaction: Restricted Share Unit — 345 contracts (Direct); Ordinary Shares — 3,246 shares (Direct)

Footnotes (2)

1. F1. Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 25, 2025 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on July 3, 2026, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.
2. F2. Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 24, 2026 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on July 2, 2027, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

Key Figures

Restricted share units released: 1,580 restricted share units Ordinary shares acquired: 1,580 ordinary shares Restricted share units granted: 345 restricted share units +2 more

5 metrics

Restricted share units released 1,580 restricted share units October 24, 2026

Ordinary shares acquired 1,580 ordinary shares October 24, 2026

Restricted share units granted 345 restricted share units October 24, 2026; for no consideration

Shares delivered or withheld 380 ordinary shares For payment of exercise price or tax liability on October 24, 2026

Reported price per share $630.49 per share 380 ordinary shares delivered or withheld for payment of exercise price or tax liability

Key Terms

restricted share units (RSUs), contingent right, Equity Incentive Plan

3 terms

restricted share units (RSUs) financial

"grant of restricted share units (RSUs)"

Restricted share units (RSUs) are a form of employee pay where a company promises to give shares (or their cash value) to workers after certain conditions, usually time or performance, are met. For investors, RSUs matter because they can increase the number of shares outstanding and signal how management is being paid and incentivized—think of them as delayed bonuses that convert into ownership when vesting conditions are satisfied.

contingent right financial

"Each RSU represents a contingent right to receive one Ordinary Share"

Equity Incentive Plan financial

"2022 Equity Incentive Plan"

An equity incentive plan is a program that gives employees, executives or directors the right to receive company stock or options to buy stock as part of their pay. Think of it as offering slices of future company profit to motivate people to boost long‑term performance; for investors it matters because it can align employee goals with shareholder value but also increases the number of shares outstanding, which can dilute existing ownership.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Seagate (STX) director Mark Adams report on October 24, 2026?

Mark Adams reported the release of 1,580 restricted share units into 1,580 ordinary shares, a grant of 345 restricted share units, and 380 ordinary shares delivered or withheld for payment of exercise price or tax liability at $630.49 per share.

When can Mark Adams's 345 Seagate RSUs be released?

The 345 RSUs awarded October 24, 2026, are subject to continuous service. Shares are to be released on the earlier of one year from the grant date or the next annual general meeting after the fiscal year ending July 2, 2027, provided that meeting is at least 50 weeks after the immediately preceding fiscal year's annual general meeting.

What release terms applied to Mark Adams's 1,580 Seagate RSUs?

The RSUs were granted October 25, 2025, for no consideration, and each represented a contingent right to one ordinary share. Subject to continuous service, shares were to be released on the earlier of one year from grant or the next annual general meeting after the fiscal year ending July 3, 2026, provided that meeting was at least 50 weeks after the immediately preceding fiscal year's annual general meeting.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 10/26/2026 - 06:46 PM EDT Accepted by SEC EDGAR 10/26/2026 - 06:46 PM EDT Learn about SEC filing dates

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).

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^*

Adams Mark

(Last) (First) (Middle)

SEAGATE TECHNOLOGY HOLDINGS PLC

47488 KATO ROAD

(Street)

FREMONT CALIFORNIA 94538

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/24/2026

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

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

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

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	10/24/2026		M		1,580	A	$0	3,626	D
Ordinary Shares	10/24/2026		F		380	D	$630.49	3,246	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	10/24/2026		M			1,580	(1)	(1)	Ordinary Shares	1,580	$0	0	D
Restricted Share Unit	$0	10/24/2026		A		345		(2)	(2)	Ordinary Shares	345	$0	345	D

Explanation of Responses:

1. Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 25, 2025 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on July 3, 2026, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

2. Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 24, 2026 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on July 2, 2027, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

Remarks:

	/s/ Louis A. Thorson, Attorney-in-fact for Mark W. Adams	10/26/2026
	** 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.
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.
* Form 4: SEC 1474 (03-26)