=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-05-13
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: 2026-05-13 | Code: S (Open market sale)
Shares: -520 | Price: $800.26
Total Value: $416,135.41
Shares Owned After: 10,728 | Ownership: D (Direct)
Footnotes:
[F1] All transactions reported in this Form 4 on 5/13/2026 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 $800 to $800.95. 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 #2]
Security: Ordinary Shares
Date: 2026-05-13 | Code: S (Open market sale)
Shares: -200 | Price: $801.39
Total Value: $160,278.00
Shares Owned After: 10,528 | Ownership: D (Direct)
Footnotes:
[F3] These Ordinary Shares were sold in multiple trades at prices ranging from $801.12 to $802.00. 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: 2026-05-13 | Code: S (Open market sale)
Shares: -419 | Price: $802.67
Total Value: $336,318.60
Shares Owned After: 10,109 | Ownership: D (Direct)
Footnotes:
[F4] These Ordinary Shares were sold in multiple trades at prices ranging from $802.19 to $803.15. 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: 2026-05-13 | Code: S (Open market sale)
Shares: -676 | Price: $803.76
Total Value: $543,343.52
Shares Owned After: 9,433 | Ownership: D (Direct)
Footnotes:
[F5] These Ordinary Shares were sold in multiple trades at prices ranging from $803.28 to $804.24. 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: 2026-05-13 | Code: S (Open market sale)
Shares: -509 | Price: $804.71
Total Value: $409,599.78
Shares Owned After: 8,924 | Ownership: D (Direct)
Footnotes:
[F6] These Ordinary Shares were sold in multiple trades at prices ranging from $804.30 to $805.19. 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: 2026-05-13 | Code: S (Open market sale)
Shares: -400 | Price: $805.99
Total Value: $322,397.60
Shares Owned After: 8,524 | Ownership: D (Direct)
Footnotes:
[F7] These Ordinary Shares were sold in multiple trades at prices ranging from $805.63 to $806.36. 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: 2026-05-13 | Code: S (Open market sale)
Shares: -120 | Price: $807.31
Total Value: $96,877.00
Shares Owned After: 8,404 | Ownership: D (Direct)
Footnotes:
[F8] These Ordinary Shares were sold in multiple trades at prices ranging from $807.11 to $807.71. 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: 2026-05-13 | Code: S (Open market sale)
Shares: -429 | Price: $808.60
Total Value: $346,888.24
Shares Owned After: 7,975 | Ownership: D (Direct)
Footnotes:
[F9] These Ordinary Shares were sold in multiple trades at prices ranging from $808.25 to $809.08. 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 #9]
Security: Ordinary Shares
Date: 2026-05-13 | Code: S (Open market sale)
Shares: -607 | Price: $809.63
Total Value: $491,444.50
Shares Owned After: 7,368 | Ownership: D (Direct)
Footnotes:
[F10] These Ordinary Shares were sold in multiple trades at prices ranging from $809.25 to $810.00. 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: 2026-05-13 | Code: S (Open market sale)
Shares: -351 | Price: $810.57
Total Value: $284,510.46
Shares Owned After: 7,017 | Ownership: D (Direct)
Footnotes:
[F11] These Ordinary Shares were sold in multiple trades at prices ranging from $810.25 to $811.13. 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: 2026-05-13 | Code: S (Open market sale)
Shares: -272 | Price: $812.20
Total Value: $220,919.49
Shares Owned After: 6,745 | Ownership: D (Direct)
Footnotes:
[F12] These Ordinary Shares were sold in multiple trades at prices ranging from $811.74 to $812.62. 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: 2026-05-13 | Code: S (Open market sale)
Shares: -285 | Price: $813.47
Total Value: $231,838.49
Shares Owned After: 6,460 | Ownership: D (Direct)
Footnotes:
[F13] These Ordinary Shares were sold in multiple trades at prices ranging from $812.76 to $813.69. 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: 2026-05-13 | Code: S (Open market sale)
Shares: -200 | Price: $814.26
Total Value: $162,852.40
Shares Owned After: 6,260 | Ownership: D (Direct)
Footnotes:
[F14] These Ordinary Shares were sold in multiple trades at prices ranging from $813.99 to $814.67. 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 #14]
Security: Ordinary Shares
Date: 2026-05-13 | Code: S (Open market sale)
Shares: -80 | Price: $815.51
Total Value: $65,240.80
Shares Owned After: 6,180 | Ownership: D (Direct)
[Transaction #15]
Security: Ordinary Shares
Date: 2026-05-13 | Code: S (Open market sale)
Shares: -160 | Price: $817.23
Total Value: $130,757.20
Shares Owned After: 6,020 | Ownership: D (Direct)
Footnotes:
[F15] These Ordinary Shares were sold in multiple trades at prices ranging from $816.96 to $817.51. 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: 2026-05-13 | Code: S (Open market sale)
Shares: -200 | Price: $818.63
Total Value: $163,726.60
Shares Owned After: 5,820 | Ownership: D (Direct)
Footnotes:
[F16] These Ordinary Shares were sold in multiple trades at prices ranging from $818.00 to $818.92. 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: 2026-05-13 | Code: S (Open market sale)
Shares: -40 | Price: $819.51
Total Value: $32,780.40
Shares Owned After: 5,780 | Ownership: D (Direct)
[Transaction #18]
Security: Ordinary Shares
Date: 2026-05-13 | Code: S (Open market sale)
Shares: -320 | Price: $821.29
Total Value: $262,814.02
Shares Owned After: 5,460 | Ownership: D (Direct)
Footnotes:
[F17] These Ordinary Shares were sold in multiple trades at prices ranging from $821.00 to $821.50. 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: 2026-05-13 | Code: S (Open market sale)
Shares: -40 | Price: $822.19
Total Value: $32,887.60
Shares Owned After: 5,420 | Ownership: D (Direct)
[Transaction #20]
Security: Ordinary Shares
Date: 2026-05-13 | Code: S (Open market sale)
Shares: -80 | Price: $824.96
Total Value: $65,996.80
Shares Owned After: 5,340 | Ownership: D (Direct)
[Transaction #21]
Security: Ordinary Shares
Date: 2026-05-13 | Code: S (Open market sale)
Shares: -80 | Price: $827.50
Total Value: $66,200.00
Shares Owned After: 5,260 | Ownership: D (Direct)
[Transaction #22]
Security: Ordinary Shares
Date: 2026-05-13 | Code: S (Open market sale)
Shares: -1,569 | Price: $830.75
Total Value: $1,303,446.75
Shares Owned After: 3,691 | Ownership: D (Direct)
[Transaction #23]
Security: Ordinary Shares
Date: 2026-05-14 | Code: M (Exercise of derivative)
Shares: +3,515 | Price: $64.31
Total Value: $226,049.65
Shares Owned After: 7,206 | Ownership: D (Direct)
[Transaction #24]
Security: Ordinary Shares
Date: 2026-05-14 | Code: M (Exercise of derivative)
Shares: +2,358 | Price: $101.34
Total Value: $238,959.72
Shares Owned After: 9,564 | Ownership: D (Direct)
[Transaction #25]
Security: Ordinary Shares
Date: 2026-05-14 | Code: M (Exercise of derivative)
Shares: +2,130 | Price: $68.83
Total Value: $146,607.90
Shares Owned After: 11,694 | Ownership: D (Direct)
[Transaction #26]
Security: Ordinary Shares
Date: 2026-05-14 | Code: S (Open market sale)
Shares: -8,003 | Price: $817.28
Total Value: $6,540,725.45
Shares Owned After: 3,691 | Ownership: D (Direct)
Footnotes:
[F18] These Ordinary Shares were sold in multiple trades at prices ranging from $817.24 to $818.02. 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.
--- Derivative Transactions ---
[Transaction #1]
Security: NQ Options
Date: 2026-05-14 | Code: M (Exercise of derivative)
Shares: -3,515 | Price: $0.00
Exercisable: N/A | Expires: 2030-09-11
Shares Owned After: 14,060 | Ownership: D (Direct)
Footnotes:
[F19] Options granted to the Reporting Person under the Seagate Technology plc 2022 Equity Incentive Plan (the "2022 Plan") are subject to a four-year vesting schedule. One-quarter of the options vested on September 11, 2024 and the remaining options vest in equal monthly installments over the 36 months following September 11, 2024.
[Transaction #2]
Security: NQ Options
Date: 2026-05-14 | Code: M (Exercise of derivative)
Shares: -2,358 | Price: $0.00
Exercisable: N/A | Expires: 2031-09-09
Shares Owned After: 16,509 | Ownership: D (Direct)
Footnotes:
[F20] Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 9, 2025 and the remaining options vest in equal monthly installments over the 36 months following September 9, 2025.
[Transaction #3]
Security: NQ Options
Date: 2026-05-14 | Code: M (Exercise of derivative)
Shares: -2,130 | Price: $0.00
Exercisable: N/A | Expires: 2029-09-09
Shares Owned After: 2,130 | Ownership: D (Direct)
Footnotes:
[F21] Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 9, 2023 and the remaining options vest in equal monthly installments over the 36 months following September 9, 2023.
--- Footnotes (Complete Index) ---
F1: All transactions reported in this Form 4 on 5/13/2026 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 $809.25 to $810.00. 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 $810.25 to $811.13. 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 $811.74 to $812.62. 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 $812.76 to $813.69. 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 $813.99 to $814.67. 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.
F15: These Ordinary Shares were sold in multiple trades at prices ranging from $816.96 to $817.51. 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 $818.00 to $818.92. 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 $821.00 to $821.50. 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 $817.24 to $818.02. 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: Options granted to the Reporting Person under the Seagate Technology plc 2022 Equity Incentive Plan (the "2022 Plan") are subject to a four-year vesting schedule. One-quarter of the options vested on September 11, 2024 and the remaining options vest in equal monthly installments over the 36 months following September 11, 2024.
F2: These Ordinary Shares were sold in multiple trades at prices ranging from $800 to $800.95. 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.
F20: Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 9, 2025 and the remaining options vest in equal monthly installments over the 36 months following September 9, 2025.
F21: Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 9, 2023 and the remaining options vest in equal monthly installments over the 36 months following September 9, 2023.
F3: These Ordinary Shares were sold in multiple trades at prices ranging from $801.12 to $802.00. 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 $802.19 to $803.15. 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 $803.28 to $804.24. 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 $804.30 to $805.19. 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 $805.63 to $806.36. 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 $807.11 to $807.71. 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 $808.25 to $809.08. 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.
--- Signature ---
/s/ /s/ Louis J. Thorson, Attorney-in-Fact for Ban Seng Teh (2026-05-14)
