=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-08-21
10b5-1 Pre-arranged Plan: Yes
--- Issuer ---
Name: Seagate Technology Holdings plc (STX)
CIK: 0001137789
--- Reporting Owner ---
Name: Teh Ban Seng
CIK: 0001801425
Role: Officer (EVP & Chief Commercial Officer)
--- Non-Derivative Transactions ---
[Transaction #1]
Security: Ordinary Shares
Date: 2026-08-21 | Code: S (Open market sale)
Shares: -80 | Price: $835.54
Total Value: $66,843.60
Shares Owned After: 14,992 | 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 February 11, 2026.
[F2] These Ordinary Shares were sold in multiple trades at prices ranging from $835.48 to $835.61. 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: 2026-08-21 | Code: S (Open market sale)
Shares: -89 | Price: $837.27
Total Value: $74,516.83
Shares Owned After: 14,903 | Ownership: D (Direct)
Footnotes:
[F3] These Ordinary Shares were sold in multiple trades at prices ranging from $836.89 to $837.54. 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: 2026-08-21 | Code: S (Open market sale)
Shares: -88 | Price: $838.35
Total Value: $73,774.56
Shares Owned After: 14,815 | Ownership: D (Direct)
Footnotes:
[F4] These Ordinary Shares were sold in multiple trades at prices ranging from $837.95 to $838.75. 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: 2026-08-21 | Code: S (Open market sale)
Shares: -280 | Price: $839.60
Total Value: $235,086.71
Shares Owned After: 14,535 | Ownership: D (Direct)
Footnotes:
[F5] These Ordinary Shares were sold in multiple trades at prices ranging from $839.18 to $839.94. 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 #5]
Security: Ordinary Shares
Date: 2026-08-21 | Code: S (Open market sale)
Shares: -200 | Price: $840.53
Total Value: $168,105.40
Shares Owned After: 14,335 | Ownership: D (Direct)
Footnotes:
[F6] These Ordinary Shares were sold in multiple trades at prices ranging from $840.25 to $840.95. 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: 2026-08-21 | Code: S (Open market sale)
Shares: -440 | Price: $841.60
Total Value: $370,305.80
Shares Owned After: 13,895 | Ownership: D (Direct)
Footnotes:
[F7] These Ordinary Shares were sold in multiple trades at prices ranging from $841.26 to $842.10. 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: 2026-08-21 | Code: S (Open market sale)
Shares: -240 | Price: $842.69
Total Value: $202,245.00
Shares Owned After: 13,655 | Ownership: D (Direct)
Footnotes:
[F8] These Ordinary Shares were sold in multiple trades at prices ranging from $842.36 to $843.05. 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: 2026-08-21 | Code: S (Open market sale)
Shares: -120 | Price: $843.64
Total Value: $101,237.20
Shares Owned After: 13,535 | Ownership: D (Direct)
Footnotes:
[F9] These Ordinary Shares were sold in multiple trades at prices ranging from $843.46 to $843.82. 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: 2026-08-21 | Code: S (Open market sale)
Shares: -228 | Price: $845.15
Total Value: $192,693.31
Shares Owned After: 13,307 | Ownership: D (Direct)
Footnotes:
[F10] These Ordinary Shares were sold in multiple trades at prices ranging from $844.68 to $845.54 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: 2026-08-21 | Code: S (Open market sale)
Shares: -360 | Price: $846.39
Total Value: $304,701.98
Shares Owned After: 12,947 | Ownership: D (Direct)
Footnotes:
[F11] These Ordinary Shares were sold in multiple trades at prices ranging from $845.85 to $846.73. 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: 2026-08-21 | Code: S (Open market sale)
Shares: -920 | Price: $847.36
Total Value: $779,572.40
Shares Owned After: 12,027 | Ownership: D (Direct)
Footnotes:
[F12] These Ordinary Shares were sold in multiple trades at prices ranging from $846.85 to $847.81. 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: 2026-08-21 | Code: S (Open market sale)
Shares: -520 | Price: $848.47
Total Value: $441,202.42
Shares Owned After: 11,507 | Ownership: D (Direct)
Footnotes:
[F13] These Ordinary Shares were sold in multiple trades at prices ranging from $847.96 to $848.93. 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: 2026-08-21 | Code: S (Open market sale)
Shares: -267 | Price: $849.27
Total Value: $226,755.84
Shares Owned After: 11,240 | Ownership: D (Direct)
Footnotes:
[F14] These Ordinary Shares were sold in multiple trades at prices ranging from $848.99 to $849.53. 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: 2026-08-21 | Code: S (Open market sale)
Shares: -440 | Price: $850.63
Total Value: $374,277.20
Shares Owned After: 10,800 | Ownership: D (Direct)
Footnotes:
[F15] These Ordinary Shares were sold in multiple trades at prices ranging from $850.05 to $850.83. 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 #15]
Security: Ordinary Shares
Date: 2026-08-21 | Code: S (Open market sale)
Shares: -560 | Price: $851.71
Total Value: $476,958.78
Shares Owned After: 10,240 | Ownership: D (Direct)
Footnotes:
[F16] These Ordinary Shares were sold in multiple trades at prices ranging from $851.39 to $852.29. 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 #16]
Security: Ordinary Shares
Date: 2026-08-21 | Code: S (Open market sale)
Shares: -510 | Price: $852.90
Total Value: $434,979.46
Shares Owned After: 9,730 | Ownership: D (Direct)
Footnotes:
[F17] These Ordinary Shares were sold in multiple trades at prices ranging from $852.62 to $853.49. 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 #17]
Security: Ordinary Shares
Date: 2026-08-21 | Code: S (Open market sale)
Shares: -160 | Price: $854.21
Total Value: $136,673.60
Shares Owned After: 9,570 | Ownership: D (Direct)
Footnotes:
[F18] These Ordinary Shares were sold in multiple trades at prices ranging from $853.80 to $854.60. 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 #18]
Security: Ordinary Shares
Date: 2026-08-21 | Code: S (Open market sale)
Shares: -240 | Price: $855.18
Total Value: $205,242.19
Shares Owned After: 9,330 | Ownership: D (Direct)
Footnotes:
[F19] These Ordinary Shares were sold in multiple trades at prices ranging from $855.02 to $855.34. 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 #19]
Security: Ordinary Shares
Date: 2026-08-21 | Code: S (Open market sale)
Shares: -720 | Price: $857.16
Total Value: $617,152.32
Shares Owned After: 8,610 | Ownership: D (Direct)
Footnotes:
[F20] These Ordinary Shares were sold in multiple trades at prices ranging from $856.59 to $857.55. 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 #20]
Security: Ordinary Shares
Date: 2026-08-21 | Code: S (Open market sale)
Shares: -280 | Price: $858.23
Total Value: $240,303.20
Shares Owned After: 8,330 | Ownership: D (Direct)
Footnotes:
[F21] These Ordinary Shares were sold in multiple trades at prices ranging from $857.90 to $858.57. 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 #21]
Security: Ordinary Shares
Date: 2026-08-21 | Code: S (Open market sale)
Shares: -80 | Price: $859.29
Total Value: $68,743.60
Shares Owned After: 8,250 | Ownership: D (Direct)
Footnotes:
[F22] These Ordinary Shares were sold in multiple trades at prices ranging from $859.17 to $859.42. 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 #22]
Security: Ordinary Shares
Date: 2026-08-21 | Code: S (Open market sale)
Shares: -500 | Price: $860.50
Total Value: $430,250.00
Shares Owned After: 7,750 | Ownership: D (Direct)
[Transaction #23]
Security: Ordinary Shares
Date: 2026-08-21 | Code: S (Open market sale)
Shares: -221 | Price: $861.26
Total Value: $190,337.62
Shares Owned After: 7,529 | Ownership: D (Direct)
Footnotes:
[F23] These Ordinary Shares were sold in multiple trades at prices ranging from $860.69 to $861.52. 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 #24]
Security: Ordinary Shares
Date: 2026-08-21 | Code: S (Open market sale)
Shares: -1,759 | Price: $861.81
Total Value: $1,515,923.61
Shares Owned After: 5,770 | Ownership: D (Direct)
Footnotes:
[F24] These Ordinary Shares were sold in multiple trades at prices ranging from $861.73 to $862.60. 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 #25]
Security: Ordinary Shares
Date: 2026-08-21 | Code: S (Open market sale)
Shares: -360 | Price: $863.21
Total Value: $310,757.00
Shares Owned After: 5,410 | Ownership: D (Direct)
Footnotes:
[F25] These Ordinary Shares were sold in multiple trades at prices ranging from $862.96 to $863.67. 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 #26]
Security: Ordinary Shares
Date: 2026-08-21 | Code: S (Open market sale)
Shares: -120 | Price: $865.77
Total Value: $103,892.00
Shares Owned After: 5,290 | Ownership: D (Direct)
Footnotes:
[F26] These Ordinary Shares were sold in multiple trades at prices ranging from $865.42 to $866.27. 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 #27]
Security: Ordinary Shares
Date: 2026-08-21 | Code: S (Open market sale)
Shares: -80 | Price: $868.00
Total Value: $69,440.00
Shares Owned After: 5,210 | 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 February 11, 2026.
F10: These Ordinary Shares were sold in multiple trades at prices ranging from $844.68 to $845.54 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 $845.85 to $846.73. 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 $846.85 to $847.81. 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 $847.96 to $848.93. 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 $848.99 to $849.53. 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.
F15: These Ordinary Shares were sold in multiple trades at prices ranging from $850.05 to $850.83. 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.
F16: These Ordinary Shares were sold in multiple trades at prices ranging from $851.39 to $852.29. 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.
F17: These Ordinary Shares were sold in multiple trades at prices ranging from $852.62 to $853.49. 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.
F18: These Ordinary Shares were sold in multiple trades at prices ranging from $853.80 to $854.60. 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.
F19: These Ordinary Shares were sold in multiple trades at prices ranging from $855.02 to $855.34. 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 $835.48 to $835.61. 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.
F20: These Ordinary Shares were sold in multiple trades at prices ranging from $856.59 to $857.55. 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.
F21: These Ordinary Shares were sold in multiple trades at prices ranging from $857.90 to $858.57. 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.
F22: These Ordinary Shares were sold in multiple trades at prices ranging from $859.17 to $859.42. 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.
F23: These Ordinary Shares were sold in multiple trades at prices ranging from $860.69 to $861.52. 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.
F24: These Ordinary Shares were sold in multiple trades at prices ranging from $861.73 to $862.60. 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.
F25: These Ordinary Shares were sold in multiple trades at prices ranging from $862.96 to $863.67. 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.
F26: These Ordinary Shares were sold in multiple trades at prices ranging from $865.42 to $866.27. 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.
F3: These Ordinary Shares were sold in multiple trades at prices ranging from $836.89 to $837.54. 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 $837.95 to $838.75. 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 $839.18 to $839.94. 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.
F6: These Ordinary Shares were sold in multiple trades at prices ranging from $840.25 to $840.95. 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 $841.26 to $842.10. 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 $842.36 to $843.05. 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 $843.46 to $843.82. 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 Ban Seng Teh (2026-08-24)
