Seagate EVP sells 989 shares under preset plan

Seagate’s EVP & Chief Commercial Officer reported RSU vesting into shares followed by a pre-planned sale under a Rule 10b5-1 trading plan.

Rhea-AI Filing Summary

Seagate Technology Holdings plc (STX) EVP & Chief Commercial Officer Teh Ban Seng reported an automatic vesting and related sale of shares. On September 11, 2026, 989 Restricted Share Units vested and were converted into 989 Ordinary Shares at $0.00 per share. On September 14, 2026, 989 Ordinary Shares were sold at $779.00 per share under a Rule 10b5-1 trading plan adopted on February 11, 2026.

Insider Trade Summary 10b5-1

Exercise and sale activity reported; no spread calculated

Exercise and Sale 3 txns

Insider Teh Ban Seng

Role EVP & Chief Commercial Officer

Sold 989 shs ($770K)

Approx. gross sale proceeds $770K

Approx. exercise cost $0.00

Type	Security	Shares	Price	Value
Sale	Ordinary Shares F1	989	$779.00	$770K
Exercise	Restricted Share Unit F2	989	$0.00	$0.00
Exercise	Ordinary Shares	989	$0.00	$0.00

Holdings After Transaction: Restricted Share Unit — 3,956 contracts (Direct); Ordinary Shares — 5,810 shares (Direct)

Footnotes (2)

1. F1. These Ordinary Shares were sold under a Rule 10b5-1 trading plan adopted by the Reporting Person on February 11, 2026.
2. F2. Consists of a grant of RSUs awarded to the reporting person under the Seagate Technology plc 2022 Equity Incentive Plan subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 11, 2024 and then in equal quarterly installments thereafter.

Key Figures

Shares sold: 989 shares Sale price per share: $779.00 per share RSUs converted: 989 units +3 more

6 metrics

Shares sold 989 shares Ordinary Shares sold on September 14, 2026

Sale price per share $779.00 per share Price for 989 Ordinary Shares sold on September 14, 2026

RSUs converted 989 units Restricted Share Units converted into Ordinary Shares on September 11, 2026

Conversion price $0.00 per share RSUs converted into Ordinary Shares on September 11, 2026

RSUs held after transaction 3,956 units Total RSUs following the September 11, 2026 RSU transaction

Rule 10b5-1 plan adoption date February 11, 2026 Plan under which the September 14, 2026 sale was executed

Key Terms

Rule 10b5-1 trading plan, Restricted Share Unit, Equity Incentive Plan

3 terms

Rule 10b5-1 trading plan regulatory

"were sold under a Rule 10b5-1 trading plan adopted"

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 RSUs awarded to the reporting person"

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.

Equity Incentive Plan financial

"under the Seagate Technology plc 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 insider transaction did Seagate (STX) report for EVP Teh Ban Seng?

Teh Ban Seng reported RSU vesting into shares and a subsequent sale. On September 11, 2026, 989 RSUs converted into 989 Ordinary Shares. On September 14, 2026, 989 Ordinary Shares were sold, all as disclosed in the Form 4.

How many Seagate (STX) shares did Teh Ban Seng sell and at what price?

Teh Ban Seng sold 989 Ordinary Shares of Seagate at a reported price of $779.00 per share on September 14, 2026, in a transaction described as a sale in the open market or a private transaction.

Were the Seagate (STX) insider sales by Teh Ban Seng under a Rule 10b5-1 plan?

Yes. The 989 Ordinary Shares sold on September 14, 2026 were sold under a Rule 10b5-1 trading plan adopted by the reporting person on February 11, 2026, and the filing affirms transactions under such a plan.

What RSU activity did Seagate (STX) disclose for Teh Ban Seng?

On September 11, 2026, 989 Restricted Share Units granted under the Seagate Technology plc 2022 Equity Incentive Plan vested and were converted into 989 Ordinary Shares at a conversion price of $0.00 per share.

What is the vesting schedule of Teh Ban Seng’s Seagate (STX) RSU grant?

The RSU grant is subject to a four-year vesting schedule. One-quarter vested starting on September 11, 2024, with the remainder vesting in equal quarterly installments thereafter, contingent on the reporting person’s continuous employment.

How many RSUs did Teh Ban Seng hold after the September 11, 2026 Seagate (STX) transaction?

After the September 11, 2026 RSU vesting and conversion, the filing reports 3,956 Restricted Share Units as the total RSUs held by Teh Ban Seng following that transaction.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 09/15/2026 - 04:16 PM Accepted by SEC EDGAR 09/15/2026 - 04:16 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^*

Teh Ban Seng

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/11/2026

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	09/11/2026		M		989	A	$0	6,799	D
Ordinary Shares	09/14/2026		S		989(1)	D	$779	5,810	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	09/11/2026		M			989	(2)	(2)	Ordinary Shares	989	$0	3,956	D

Explanation of Responses:

1. These Ordinary Shares were sold under a Rule 10b5-1 trading plan adopted by the Reporting Person on February 11, 2026.

2. Consists of a grant of RSUs awarded to the reporting person under the Seagate Technology plc 2022 Equity Incentive Plan subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 11, 2024 and then in equal quarterly installments thereafter.

Remarks:

	/s/ Louis J. Thorson, Attorney-in-Fact for Ban Seng Teh	09/15/2026
	** 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)