Seagate EVP & CTO sells 1,364 shares under 10b5-1 plan

Seagate Technology Holdings plc EVP & CTO John Christopher Morris reported several equity transactions.

Rhea-AI Filing Summary

Seagate Technology Holdings plc EVP & CTO John Christopher Morris reported several equity transactions. On June 12, 2026, he sold a total of 1,364 Ordinary Shares in open-market transactions at an average price of $880.19 per share under a Rule 10b5-1 trading plan adopted on January 29, 2026. The day before, on June 11, 2026, he exercised 942 restricted share units into the same number of Ordinary Shares at $0.00 per share. After these transactions, he directly owns 12,088.25 Ordinary Shares and 4,710 restricted share units granted under the company’s 2022 Equity Incentive Plan, which vest quarterly over a total four-year period, subject to his continued employment.

Insider Trade Summary 10b5-1

Exercise and sale activity reported; no spread calculated

Exercise and Sale 4 txns

Insider Morris John Christopher

Role EVP & CTO

Sold 1,364 shs ($1.20M)

Approx. gross sale proceeds $1.20M

Approx. exercise cost $0.00

Type	Security	Shares	Price	Value
Sale	Ordinary Shares	466	$880.19	$410K
Sale	Ordinary Shares	898	$880.19	$790K
Exercise	Restricted Share Unit	942	$0.00	$0.00
Exercise	Ordinary Shares	942	$0.00	$0.00

Holdings After Transaction: Restricted Share Unit — 4,710 contracts (Direct); Ordinary Shares — 12,088.25 shares (Direct)

Footnotes (2)

1. F1. These Ordinary Shares were sold under a Rule 10b5-1 trading plan adopted by the Reporting Person on January 29, 2026.
2. F2. 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.

Key Figures

Shares sold: 1,364 shares Sale price: $880.19 per share RSUs exercised: 942 units +5 more

8 metrics

Shares sold 1,364 shares Ordinary Shares sold on June 12, 2026

Sale price $880.19 per share Average price for June 12, 2026 open-market sales

RSUs exercised 942 units Restricted share units converted to Ordinary Shares on June 11, 2026

Exercise price $0.00 per share Price for RSU conversion to Ordinary Shares

Shares held after 12,088.25 shares Direct Ordinary Share ownership following reported transactions

RSUs outstanding 4,710 units Restricted share units remaining after June 11, 2026 transaction

Sales date June 12, 2026 Date of open-market Ordinary Share sales

Plan adoption date January 29, 2026 Adoption date of Rule 10b5-1 trading plan

Key Terms

Rule 10b5-1 trading plan, restricted share unit, 2022 Equity Incentive Plan, open-market sale, +1 more

5 terms

Rule 10b5-1 trading plan regulatory

"These Ordinary Shares were sold under a Rule 10b5-1 trading plan adopted by the Reporting Person on January 29, 2026."

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

restricted share unit financial

"Consists of a grant of restricted share unit awarded to the reporting person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan."

A restricted share unit (RSU) is a promise by a company to give an employee a set number of company shares at a future date, typically after meeting time or performance conditions. For investors, RSUs matter because when they convert into actual shares they increase the number of shares outstanding (like unlocking more tickets in a game), which can dilute existing holders, and they align employee incentives with company performance, influencing behavior and long-term value.

2022 Equity Incentive Plan financial

"awarded to the reporting person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan."

open-market sale financial

"transaction_action: "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

derivative exercise/conversion financial

"transaction_action: "derivative exercise/conversion""

FAQ

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

What insider transactions did Seagate (STX) report for John Christopher Morris?

Seagate reported that EVP & CTO John Christopher Morris sold 1,364 Ordinary Shares and exercised 942 restricted share units into Ordinary Shares, reflecting both an equity grant vesting and a modest open-market sale.

How many Seagate (STX) shares did John Christopher Morris sell and at what price?

He sold a total of 1,364 Seagate Ordinary Shares on June 12, 2026, at an average price of $880.19 per share in open-market transactions executed under a pre-established Rule 10b5-1 trading plan.

Did John Christopher Morris acquire Seagate (STX) shares in addition to selling them?

Yes. On June 11, 2026, he exercised 942 restricted share units into 942 Ordinary Shares at $0.00 per share, reflecting the vesting and settlement of an existing equity award rather than an open-market purchase.

What is John Christopher Morris’s Seagate (STX) share ownership after these Form 4 transactions?

Following the reported transactions, John Christopher Morris directly owns 12,088.25 Ordinary Shares of Seagate and holds 4,710 restricted share units that remain outstanding under the company’s 2022 Equity Incentive Plan.

Were the Seagate (STX) insider sales by John Christopher Morris pre-planned?

Yes. The Form 4 footnote states that the Ordinary Shares sold on June 12, 2026, were executed under a Rule 10b5-1 trading plan that he adopted on January 29, 2026, indicating the sales were pre-scheduled.

How do John Christopher Morris’s restricted share units in Seagate (STX) vest?

The restricted share unit grant vests over four years: one-quarter vested starting on September 11, 2024, with the remaining units vesting in equal quarterly installments, subject to his continuous employment with Seagate.

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

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Accepted by SEC EDGAR 06/15/2026 - 05:45 PM 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).

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^*

Morris John Christopher

(Last) (First) (Middle)

SEAGATE TECHNOLOGY 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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/11/2026

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	06/11/2026		M		942	A	$0	13,452.25	D
Ordinary Shares	06/12/2026		S		466	D	$880.19	12,986.25	D
Ordinary Shares	06/12/2026		S		898(1)	D	$880.19	12,088.25	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	06/11/2026		M			942	(2)	(2)	Ordinary Shares	942	$0	4,710	D

Explanation of Responses:

1. These Ordinary Shares were sold under a Rule 10b5-1 trading plan adopted by the Reporting Person on January 29, 2026.

2. 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	06/15/2026
	** 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)