# EDGAR Filing Document

**Accession Number:** 0001137789
**File Stem:** 0001137789-25-000182
**Filing Date:** 2025-8
**Character Count:** 7200
**Document Hash:** 899784eb3fbffd3a34cc500a4cee3698
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001137789-25-000182.hdr.sgml**: 20250822

**ACCESSION NUMBER**: 0001137789-25-000182

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250820

**FILED AS OF DATE**: 20250822

**DATE AS OF CHANGE**: 20250822

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Chong Kian Fatt
- **CENTRAL INDEX KEY:** 0001987421

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-31560
- **FILM NUMBER:** 251247363

**MAIL ADDRESS:**
- **STREET 1:** AVE 5
- **CITY:** WOODLANDS
- **STATE:** U0
- **ZIP:** 121
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Seagate Technology Holdings plc
- **CENTRAL INDEX KEY:** 0001137789
- **STANDARD INDUSTRIAL CLASSIFICATION:** COMPUTER STORAGE DEVICES [3572]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 981597419
- **FISCAL YEAR END:** 0627

**BUSINESS ADDRESS:**
- **STREET 1:** 121 WOODLANDS AVENUE 5
- **CITY:** SINGAPORE
- **STATE:** U0
- **ZIP:** 739009
- **BUSINESS PHONE:** 65 6412 5172

**MAIL ADDRESS:**
- **STREET 1:** 121 WOODLANDS AVENUE 5
- **CITY:** SINGAPORE
- **STATE:** U0
- **ZIP:** 739009

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Seagate Technology plc
- **DATE OF NAME CHANGE:** 20100706

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Seagate Technology
- **DATE OF NAME CHANGE:** 20090330

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** SEAGATE TECHNOLOGY
- **DATE OF NAME CHANGE:** 20021212

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] 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**<sup>*</sup><br>Chong Kian Fatt<br><sub>(Last) (First) (Middle)</sub><br>SEAGATE TECHNOLOGY PLC<br>47488 KATO ROAD<br><sub>(Street)</sub><br>FREMONT, CA 94538<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-08-20 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_EVP Global Operations_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Seagate Technology Holdings plc [ STX ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |  |  |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| NQ Stock Option | $158.40 | 2025-08-20 |  | A |  | 13976 |  | <sup>(1)</sup> | 2032-08-20 | Ordinary Shares | 13976 | $0 | 13976 | D |  |
| Restricted Share Unit | $0 | 2025-08-20 |  | A |  | 5241 |  | <sup>(2)</sup> | <sup>(2)</sup> | Ordinary Shares | 5241 | $0 | 5241 | D |  |
| Restricted Share Unit | $0 | 2025-08-20 |  | A |  | 4258 |  | <sup>(3)</sup> | <sup>(3)</sup> | Ordinary Shares | 4258 | $0 | 4258 | D |  |
| Restricted Share Unit | $0 | 2025-08-20 |  | A |  | 1278 |  | <sup>(3)</sup> | <sup>(3)</sup> | Ordinary Shares | 1278 | $0 | 1278 | D |  |

---

### Footnotes:

(1) Options granted to the Reporting Person under the Seagate Technology plc 2022 Equity Incentive Plan the ("Plan") are subject to a four-year vesting schedule.  Subject to continuous employment, 25% shall vest on August 20, 2026 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years.

(2) Consists of a grant of Restricted Share Unit (RSU) awarded to the Reporting Person under the Plan, subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, such RSUs vest as to one-quarter of the shares on August 20, 2026 and then in equal quarterly installments thereafter.

(3) Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, 100% of such RSUs will vest on the first anniversary of the grant date,  August 20, 2026.

**Signature:** /s/ Louis J. Thorson, Attorney-in-Fact for Kian Fatt Chong  
**Date:** 2025-08-22

### Remarks:

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.**