=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-05-04
10b5-1 Pre-arranged Plan: Yes
--- Issuer ---
Name: Seagate Technology Holdings plc (STX)
CIK: 0001137789
--- Reporting Owner ---
Name: Morris John Christopher
CIK: 0001988271
Role: Officer (EVP & CTO)
--- Non-Derivative Transactions ---
[Transaction #1]
Security: Ordinary Shares
Date: 2026-05-04 | Code: S (Open market sale)
Shares: -160 | Price: $731.65
Total Value: $117,064.40
Shares Owned After: 17,420 | Ownership: D (Direct)
Footnotes:
[F1] All transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 29, 2026.
[F2] These Ordinary Shares were sold in multiple trades at prices ranging from $731.38 to $732.18. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
[Transaction #2]
Security: Ordinary Shares
Date: 2026-05-04 | Code: S (Open market sale)
Shares: -240 | Price: $733.67
Total Value: $176,081.59
Shares Owned After: 17,180 | Ownership: D (Direct)
Footnotes:
[F3] These Ordinary Shares were sold in multiple trades at prices ranging from $733.23 to $734.08. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
[Transaction #3]
Security: Ordinary Shares
Date: 2026-05-04 | Code: S (Open market sale)
Shares: -613 | Price: $734.86
Total Value: $450,471.88
Shares Owned After: 16,567 | Ownership: D (Direct)
Footnotes:
[F4] These Ordinary Shares were sold in multiple trades at prices ranging from $734.27 to $735.23. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
[Transaction #4]
Security: Ordinary Shares
Date: 2026-05-04 | Code: S (Open market sale)
Shares: -520 | Price: $735.69
Total Value: $382,561.19
Shares Owned After: 16,047 | Ownership: D (Direct)
Footnotes:
[F5] These Ordinary Shares were sold in multiple trades at prices ranging from $735.27 to $736.21. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
[Transaction #5]
Security: Ordinary Shares
Date: 2026-05-04 | Code: S (Open market sale)
Shares: -734 | Price: $736.81
Total Value: $540,818.32
Shares Owned After: 15,313 | Ownership: D (Direct)
Footnotes:
[F6] These Ordinary Shares were sold in multiple trades at prices ranging from $736.27 to $737.25. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
[Transaction #6]
Security: Ordinary Shares
Date: 2026-05-04 | Code: S (Open market sale)
Shares: -800 | Price: $737.77
Total Value: $590,212.88
Shares Owned After: 14,513 | Ownership: D (Direct)
Footnotes:
[F7] These Ordinary Shares were sold in multiple trades at prices ranging from $737.28 to $738.21. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
[Transaction #7]
Security: Ordinary Shares
Date: 2026-05-04 | Code: S (Open market sale)
Shares: -427 | Price: $738.79
Total Value: $315,461.45
Shares Owned After: 14,086 | Ownership: D (Direct)
Footnotes:
[F8] These Ordinary Shares were sold in multiple trades at prices ranging from $738.31 to $739.09. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
[Transaction #8]
Security: Ordinary Shares
Date: 2026-05-04 | Code: S (Open market sale)
Shares: -631 | Price: $739.94
Total Value: $466,902.39
Shares Owned After: 13,455 | Ownership: D (Direct)
Footnotes:
[F9] These Ordinary Shares were sold in multiple trades at prices ranging from $739.36 to $740.27. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
[Transaction #9]
Security: Ordinary Shares
Date: 2026-05-04 | Code: S (Open market sale)
Shares: -615 | Price: $740.93
Total Value: $455,671.95
Shares Owned After: 12,840 | Ownership: D (Direct)
Footnotes:
[F10] These Ordinary Shares were sold in multiple trades at prices ranging from $740.36 to $741.35. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
[Transaction #10]
Security: Ordinary Shares
Date: 2026-05-04 | Code: S (Open market sale)
Shares: -398 | Price: $742.47
Total Value: $295,502.46
Shares Owned After: 12,442 | Ownership: D (Direct)
Footnotes:
[F11] These Ordinary Shares were sold in multiple trades at prices ranging from $742.08 to $743.04. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
[Transaction #11]
Security: Ordinary Shares
Date: 2026-05-04 | Code: S (Open market sale)
Shares: -248 | Price: $743.46
Total Value: $184,377.68
Shares Owned After: 12,194 | Ownership: D (Direct)
Footnotes:
[F12] These Ordinary Shares were sold in multiple trades at prices ranging from $743.14 to $743.94. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
[Transaction #12]
Security: Ordinary Shares
Date: 2026-05-04 | Code: S (Open market sale)
Shares: -80 | Price: $744.52
Total Value: $59,561.60
Shares Owned After: 12,114 | Ownership: D (Direct)
Footnotes:
[F13] These Ordinary Shares were sold in multiple trades at prices ranging from $744.18 to $744.86. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
[Transaction #13]
Security: Ordinary Shares
Date: 2026-05-04 | Code: S (Open market sale)
Shares: -120 | Price: $745.64
Total Value: $89,476.80
Shares Owned After: 11,994 | Ownership: D (Direct)
Footnotes:
[F14] These Ordinary Shares were sold in multiple trades at prices ranging from $745.34 to $745.83. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
[Transaction #14]
Security: Ordinary Shares
Date: 2026-05-04 | Code: S (Open market sale)
Shares: -40 | Price: $748.14
Total Value: $29,925.60
Shares Owned After: 11,954 | Ownership: D (Direct)
--- Footnotes (Complete Index) ---
F1: All transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 29, 2026.
F10: These Ordinary Shares were sold in multiple trades at prices ranging from $740.36 to $741.35. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
F11: These Ordinary Shares were sold in multiple trades at prices ranging from $742.08 to $743.04. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
F12: These Ordinary Shares were sold in multiple trades at prices ranging from $743.14 to $743.94. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
F13: These Ordinary Shares were sold in multiple trades at prices ranging from $744.18 to $744.86. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
F14: These Ordinary Shares were sold in multiple trades at prices ranging from $745.34 to $745.83. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
F2: These Ordinary Shares were sold in multiple trades at prices ranging from $731.38 to $732.18. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
F3: These Ordinary Shares were sold in multiple trades at prices ranging from $733.23 to $734.08. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
F4: These Ordinary Shares were sold in multiple trades at prices ranging from $734.27 to $735.23. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
F5: These Ordinary Shares were sold in multiple trades at prices ranging from $735.27 to $736.21. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
F6: These Ordinary Shares were sold in multiple trades at prices ranging from $736.27 to $737.25. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
F7: These Ordinary Shares were sold in multiple trades at prices ranging from $737.28 to $738.21. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
F8: These Ordinary Shares were sold in multiple trades at prices ranging from $738.31 to $739.09. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
F9: These Ordinary Shares were sold in multiple trades at prices ranging from $739.36 to $740.27. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
--- Signature ---
/s/ /s/ Louis J. Thorson, Attorney-in-Fact for John C. Morris (2026-05-06)
