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person · Reporting owner

Teh Ban Seng

Disclosed activity across 1 company

Tapewire entity
20492
SEC CIK
0001801425

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Seagate Technology Holdings plcSTX · Entity 2029EVP & Chief Commercial OfficerSeptember 14, 2026September 16, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Seagate Technology Holdings plc

Report date September 14, 2026 · Filed September 16, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Ordinary SharesSEC Table I · non-derivativeDirect5,810 Ending reported balance After 2026-09-15 transaction · row 25
25 source rows · reconciled sequence

Row 1 · 2026-09-14 · Exercise / conversion · Acquired 52,730 · Balance 58,540

F1: Represents Ordinary Shares issued upon the vesting and settlement of Performance Share Units granted on September 11, 2023, following certification by the Compensation and People Committee of the achievement of the applicable performance conditions.

Row 2 · 2026-09-15 · Sale · Disposed 914 · Balance 57,626

F2: All sale transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on Febuary 11, 2026.

F3: These Ordinary Shares were sold in multiple trades at prices ranging from $771.15 to $772.08. 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.

Row 3 · 2026-09-15 · Sale · Disposed 3,451 · Balance 54,175

F4: These Ordinary Shares were sold in multiple trades at prices ranging from $772.19 to $773.14. 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.

Row 4 · 2026-09-15 · Sale · Disposed 1,717 · Balance 52,458

F5: These Ordinary Shares were sold in multiple trades at prices ranging from $773.34 to $774.29. 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.

Row 5 · 2026-09-15 · Sale · Disposed 2,315 · Balance 50,143

F6: These Ordinary Shares were sold in multiple trades at prices ranging from $774.71 to $775.70. 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.

Row 6 · 2026-09-15 · Sale · Disposed 3,242 · Balance 46,901

F7: These Ordinary Shares were sold in multiple trades at prices ranging from $775.78 to $776.75. 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.

Row 7 · 2026-09-15 · Sale · Disposed 3,987 · Balance 42,914

F8: These Ordinary Shares were sold in multiple trades at prices ranging from $776.80 to $777.76. 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.

Row 8 · 2026-09-15 · Sale · Disposed 7,259 · Balance 35,655

F9: These Ordinary Shares were sold in multiple trades at prices ranging from $777.89 to $778.88. 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.

Row 9 · 2026-09-15 · Sale · Disposed 6,682 · Balance 28,973

F10: These Ordinary Shares were sold in multiple trades at prices ranging from $778.95 to $779.94. 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.

Row 10 · 2026-09-15 · Sale · Disposed 2,453 · Balance 26,520

F11: These Ordinary Shares were sold in multiple trades at prices ranging from $779.95 to $780.87. 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.

Row 11 · 2026-09-15 · Sale · Disposed 1,600 · Balance 24,920

F12: These Ordinary Shares were sold in multiple trades at prices ranging from $780.99 to $781.88. 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.

Row 12 · 2026-09-15 · Sale · Disposed 4,147 · Balance 20,773

F13: These Ordinary Shares were sold in multiple trades at prices ranging from $782.00 to $782.88. 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.

Row 13 · 2026-09-15 · Sale · Disposed 1,760 · Balance 19,013

F14: These Ordinary Shares were sold in multiple trades at prices ranging from $783.00 to $783.78. 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.

Row 14 · 2026-09-15 · Sale · Disposed 1,000 · Balance 18,013

F15: These Ordinary Shares were sold in multiple trades at prices ranging from $784.00 to $784.75. 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.

Row 15 · 2026-09-15 · Sale · Disposed 1,040 · Balance 16,973

F16: These Ordinary Shares were sold in multiple trades at prices ranging from $785.75 to $786.61. 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.

Row 16 · 2026-09-15 · Sale · Disposed 120 · Balance 16,853

F17: These Ordinary Shares were sold in multiple trades at prices ranging from $787.05 to $787.36. 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.

Row 17 · 2026-09-15 · Sale · Disposed 280 · Balance 16,573

Row 18 · 2026-09-15 · Sale · Disposed 1,760 · Balance 14,813

F18: These Ordinary Shares were sold in multiple trades at prices ranging from $789.56 to $790.43. 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.

Row 19 · 2026-09-15 · Sale · Disposed 560 · Balance 14,253

F19: These Ordinary Shares were sold in multiple trades at prices ranging from $791.01 to $791.98. 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.

Row 20 · 2026-09-15 · Sale · Disposed 1,280 · Balance 12,973

F20: These Ordinary Shares were sold in multiple trades at prices ranging from $794.18 to $794.99. 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.

Row 21 · 2026-09-15 · Sale · Disposed 2,166 · Balance 10,807

F21: These Ordinary Shares were sold in multiple trades at prices ranging from $795.65 to $796.62. 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.

Row 22 · 2026-09-15 · Sale · Disposed 1,587 · Balance 9,220

F22: These Ordinary Shares were sold in multiple trades at prices ranging from $796.68 to $797.48. 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.

Row 23 · 2026-09-15 · Sale · Disposed 530 · Balance 8,690

F23: These Ordinary Shares were sold in multiple trades at prices ranging from $797.92 to $798.08. 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.

Row 24 · 2026-09-15 · Sale · Disposed 400 · Balance 8,290

F24: These Ordinary Shares were sold in multiple trades at prices ranging from $799.02 to $799.03. 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.

Row 25 · 2026-09-15 · Sale · Disposed 2,480 · Balance 5,810

Performance-Based Restricted Share UnitsSEC Table II · derivative / convertible security · Conversion / exercise price $0.00Direct0 Reported balance After 2026-09-14 transaction · row 26 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 26 · 2026-09-14 · Exercise / conversion · Disposed 52,730 · Balance 0

F25: Performance Share Units granted on September 11, 2023 vested and were settled in Ordinary Shares upon certification of the applicable performance conditions by the Compensation and People Committee.

Filing footnotes · ownership attribution and instrument terms

F1: Represents Ordinary Shares issued upon the vesting and settlement of Performance Share Units granted on September 11, 2023, following certification by the Compensation and People Committee of the achievement of the applicable performance conditions.

F2: All sale transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on Febuary 11, 2026.

F3: These Ordinary Shares were sold in multiple trades at prices ranging from $771.15 to $772.08. 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 $772.19 to $773.14. 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 $773.34 to $774.29. 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.

F6: These Ordinary Shares were sold in multiple trades at prices ranging from $774.71 to $775.70. 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 $775.78 to $776.75. 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.

F8: These Ordinary Shares were sold in multiple trades at prices ranging from $776.80 to $777.76. 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 $777.89 to $778.88. 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.

F10: These Ordinary Shares were sold in multiple trades at prices ranging from $778.95 to $779.94. 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.

F11: These Ordinary Shares were sold in multiple trades at prices ranging from $779.95 to $780.87. 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 $780.99 to $781.88. 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 $782.00 to $782.88. 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 $783.00 to $783.78. 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 $784.00 to $784.75. 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.

F16: These Ordinary Shares were sold in multiple trades at prices ranging from $785.75 to $786.61. 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.

F17: These Ordinary Shares were sold in multiple trades at prices ranging from $787.05 to $787.36. 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.

F18: These Ordinary Shares were sold in multiple trades at prices ranging from $789.56 to $790.43. 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 $791.01 to $791.98. 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 $794.18 to $794.99. 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 $795.65 to $796.62. 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.

F22: These Ordinary Shares were sold in multiple trades at prices ranging from $796.68 to $797.48. 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 $797.92 to $798.08. 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.

F24: These Ordinary Shares were sold in multiple trades at prices ranging from $799.02 to $799.03. 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: Performance Share Units granted on September 11, 2023 vested and were settled in Ordinary Shares upon certification of the applicable performance conditions by the Compensation and People Committee.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
January 12, 2026 Filed Jan 14, 2026 22:04 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionNQ Options · Derivative 879 $0.00 Strike: $64.31 $0.00
Disclosure

SEC source: 0001137789-26-000004 · wk-form4_1768428295.xml · derivative · entry 5

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,575

Underlying: Ordinary Shares · 879 shares

Expires 2030-09-11

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: 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 11, 2024 and the remaining options vest in equal monthly installments over the 36 months following September 11, 2024.

Read SEC document
January 12, 2026 Filed Jan 14, 2026 22:04 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionNQ Options · Derivative 533 $0.00 Strike: $68.83 $0.00
Disclosure

SEC source: 0001137789-26-000004 · wk-form4_1768428295.xml · derivative · entry 4

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,260

Underlying: Ordinary Shares · 533 shares

Expires 2029-09-09

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: 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.

Read SEC document
January 12, 2026 Filed Jan 14, 2026 22:04 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,412 $299.31 $422,625.72
Disclosure

SEC source: 0001137789-26-000004 · wk-form4_1768428295.xml · nonDerivative · entry 3

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,693

Read SEC document
January 12, 2026 Filed Jan 14, 2026 22:04 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 879 $64.31 $56,528.49
Disclosure

SEC source: 0001137789-26-000004 · wk-form4_1768428295.xml · nonDerivative · entry 2

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 15,105

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 12, 2026 Filed Jan 14, 2026 22:04 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 533 $68.83 $36,686.39
Disclosure

SEC source: 0001137789-26-000004 · wk-form4_1768428295.xml · nonDerivative · entry 1

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,226

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: The option exercise and sale of Ordinary Shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on October 31, 2024.

Read SEC document
December 11, 2025 Filed Dec 12, 2025 21:17 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionNQ Options · Derivative 879 $0.00 Strike: $64.31 $0.00
Disclosure

SEC source: 0001137789-25-000368 · wk-form4_1765574264.xml · derivative · entry 7

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 18,454

Underlying: Ordinary Shares · 879 shares

Expires 2030-09-11

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: 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 11, 2024 and the remaining options vest in equal monthly installments over the 36 months following September 11, 2024.

Read SEC document
December 11, 2025 Filed Dec 12, 2025 21:17 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionNQ Options · Derivative 532 $0.00 Strike: $68.83 $0.00
Disclosure

SEC source: 0001137789-25-000368 · wk-form4_1765574264.xml · derivative · entry 6

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,793

Underlying: Ordinary Shares · 532 shares

Expires 2029-09-09

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: 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.

Read SEC document
December 11, 2025 Filed Dec 12, 2025 21:17 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 989 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000368 · wk-form4_1765574264.xml · derivative · entry 5

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,923

Underlying: Ordinary Shares · 989 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Consists of a grant of restricted share unit awarded to the reporting person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan ("the Plan"). Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 11, 2024 and then in equal quarterly installments over the following three years for a total vesting period of four years.

F2 · derivative.expiration_date: Consists of a grant of restricted share unit awarded to the reporting person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan ("the Plan"). Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 11, 2024 and then in equal quarterly installments over the following three years for a total vesting period of four years.

Read SEC document
December 11, 2025 Filed Dec 12, 2025 21:17 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 2,010 $295.90 $594,759.00
Disclosure

SEC source: 0001137789-25-000368 · wk-form4_1765574264.xml · nonDerivative · entry 4

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,693

Read SEC document
December 11, 2025 Filed Dec 12, 2025 21:17 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 879 $64.31 $56,528.49
Disclosure

SEC source: 0001137789-25-000368 · wk-form4_1765574264.xml · nonDerivative · entry 3

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 15,703

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 11, 2025 Filed Dec 12, 2025 21:17 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 532 $68.83 $36,617.56
Disclosure

SEC source: 0001137789-25-000368 · wk-form4_1765574264.xml · nonDerivative · entry 2

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,824

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: The option exercise and sale of Ordinary Shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on October 31, 2024.

Read SEC document
December 11, 2025 Filed Dec 12, 2025 21:17 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 989 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000368 · wk-form4_1765574264.xml · nonDerivative · entry 1

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,292

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 09, 2025 Filed Dec 11, 2025 21:05 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 663 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000361 · wk-form4_1765487100.xml · derivative · entry 4

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,295

Underlying: Ordinary Shares · 663 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Consists of a grant of RSUs awarded to the Reporting Person under the 2022 Plan. Subject to the Reporting Person's continuous employment one-quarter vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years.

F2 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person under the 2022 Plan. Subject to the Reporting Person's continuous employment one-quarter vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years.

Read SEC document
December 09, 2025 Filed Dec 11, 2025 21:05 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 599 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000361 · wk-form4_1765487100.xml · derivative · entry 3

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,798

Underlying: Ordinary Shares · 599 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). Subject to the Reporting Person's continuous employment, such RSUs vested as to one-quarter of the shares on September 9, 2023 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years.

F1 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). Subject to the Reporting Person's continuous employment, such RSUs vested as to one-quarter of the shares on September 9, 2023 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years.

Read SEC document
December 09, 2025 Filed Dec 11, 2025 21:05 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 663 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000361 · wk-form4_1765487100.xml · nonDerivative · entry 2

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,303

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 09, 2025 Filed Dec 11, 2025 21:05 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 599 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000361 · wk-form4_1765487100.xml · nonDerivative · entry 1

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,640

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 11, 2025 Filed Nov 12, 2025 21:39 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionNQ Options · Derivative 879 $0.00 Strike: $64.31 $0.00
Disclosure

SEC source: 0001137789-25-000337 · wk-form4_1762983541.xml · derivative · entry 5

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 19,333

Underlying: Ordinary Shares · 879 shares

Expires 2030-09-11

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: 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 11, 2024 and the remaining options vest in equal monthly installments over the 36 months following September 11, 2024.

Read SEC document
November 11, 2025 Filed Nov 12, 2025 21:39 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionNQ Options · Derivative 533 $0.00 Strike: $68.83 $0.00
Disclosure

SEC source: 0001137789-25-000337 · wk-form4_1762983541.xml · derivative · entry 4

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,325

Underlying: Ordinary Shares · 533 shares

Expires 2029-09-09

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: 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.

Read SEC document
November 11, 2025 Filed Nov 12, 2025 21:39 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,412 $288.98 $408,039.76
Disclosure

SEC source: 0001137789-25-000337 · wk-form4_1762983541.xml · nonDerivative · entry 3

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 12,041

Read SEC document
November 11, 2025 Filed Nov 12, 2025 21:39 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 879 $64.31 $56,528.49
Disclosure

SEC source: 0001137789-25-000337 · wk-form4_1762983541.xml · nonDerivative · entry 2

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,453

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 11, 2025 Filed Nov 12, 2025 21:39 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 533 $68.83 $36,686.39
Disclosure

SEC source: 0001137789-25-000337 · wk-form4_1762983541.xml · nonDerivative · entry 1

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 12,574

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: The option exercise and sale of Ordinary Shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on October 31, 2024.

Read SEC document
November 05, 2025 Filed Nov 5, 2025 21:33 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 6,000 $270.00 $1,620,000.00
Disclosure

SEC source: 0001137789-25-000330 · wk-form4_1762378421.xml · nonDerivative · entry 1

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,041

Read SEC document
October 13, 2025 Filed Oct 15, 2025 20:19 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionNQ Options · Derivative 878 $0.00 Strike: $64.31 $0.00
Disclosure

SEC source: 0001137789-25-000245 · wk-form4_1760559580.xml · derivative · entry 5

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,212

Underlying: Ordinary Shares · 878 shares

Expires 2030-09-11

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: 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 11, 2024 and the remaining options vest in equal monthly installments over the 36 months following September 11, 2024.

Read SEC document
October 13, 2025 Filed Oct 15, 2025 20:19 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionNQ Options · Derivative 532 $0.00 Strike: $68.83 $0.00
Disclosure

SEC source: 0001137789-25-000245 · wk-form4_1760559580.xml · derivative · entry 4

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,858

Underlying: Ordinary Shares · 532 shares

Expires 2029-09-09

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: 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.

Read SEC document
October 13, 2025 Filed Oct 15, 2025 20:19 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,410 $225.56 $318,039.60
Disclosure

SEC source: 0001137789-25-000245 · wk-form4_1760559580.xml · nonDerivative · entry 3

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 18,041

Read SEC document
October 13, 2025 Filed Oct 15, 2025 20:19 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 878 $64.31 $56,464.18
Disclosure

SEC source: 0001137789-25-000245 · wk-form4_1760559580.xml · nonDerivative · entry 2

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 19,451

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
October 13, 2025 Filed Oct 15, 2025 20:19 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 532 $68.83 $36,617.56
Disclosure

SEC source: 0001137789-25-000245 · wk-form4_1760559580.xml · nonDerivative · entry 1

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 18,573

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: All transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on October 31, 2024.

Read SEC document
September 14, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionPerformance-Based Restricted Share Units · Derivative 13,869 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000235 · wk-form4_1757974234.xml · derivative · entry 12

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 13,869 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_date: On September 14, 2025, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 13,869 of the 15,970 Performance Share Units granted on September 9, 2022. The 13,869 Ordinary Shares vested on September 14, 2025.

F6 · derivative.expiration_date: On September 14, 2025, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 13,869 of the 15,970 Performance Share Units granted on September 9, 2022. The 13,869 Ordinary Shares vested on September 14, 2025.

Read SEC document
September 14, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 GrantPerformance-Based Restricted Share Units · Derivative 13,869 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000235 · wk-form4_1757974234.xml · derivative · entry 11

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,869

Underlying: Ordinary Shares · 13,869 shares

Expires not disclosed

F6 · derivative.exercise_date: On September 14, 2025, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 13,869 of the 15,970 Performance Share Units granted on September 9, 2022. The 13,869 Ordinary Shares vested on September 14, 2025.

F6 · derivative.expiration_date: On September 14, 2025, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 13,869 of the 15,970 Performance Share Units granted on September 9, 2022. The 13,869 Ordinary Shares vested on September 14, 2025.

Read SEC document
September 14, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 13,869 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000235 · wk-form4_1757974234.xml · nonDerivative · entry 6

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 18,041

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
September 11, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionNQ Options · Derivative 879 $0.00 Strike: $64.31 $0.00
Disclosure

SEC source: 0001137789-25-000235 · wk-form4_1757974234.xml · derivative · entry 10

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,090

Underlying: Ordinary Shares · 879 shares

Expires 2030-09-11

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, 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.

Read SEC document
September 11, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionNQ Options · Derivative 313 $0.00 Strike: $87.34 $0.00
Disclosure

SEC source: 0001137789-25-000235 · wk-form4_1757974234.xml · derivative · entry 9

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 313 shares

Expires 2028-09-09

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, one quarter of the options vested on September 9, 2022 and the remaining options vest in equal monthly installments over the 36 months following September 9, 2022.

Read SEC document
September 11, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionNQ Options · Derivative 533 $0.00 Strike: $68.83 $0.00
Disclosure

SEC source: 0001137789-25-000235 · wk-form4_1757974234.xml · derivative · entry 8

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,390

Underlying: Ordinary Shares · 533 shares

Expires 2029-09-09

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, 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.

Read SEC document
September 11, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 989 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000235 · wk-form4_1757974234.xml · derivative · entry 7

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,912

Underlying: Ordinary Shares · 989 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Consists of a grant of restricted share units awarded to the reporting person under the Seagate Technology plc 2022 Equity Incentive Plan. Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 11, 2024 and then in equal quarterly installments over the following three years for a total vesting period of four years.

F2 · derivative.expiration_date: Consists of a grant of restricted share units awarded to the reporting person under the Seagate Technology plc 2022 Equity Incentive Plan. Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 11, 2024 and then in equal quarterly installments over the following three years for a total vesting period of four years.

Read SEC document
September 11, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 3,732 $193.30 $721,395.60
Disclosure

SEC source: 0001137789-25-000235 · wk-form4_1757974234.xml · nonDerivative · entry 5

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,172

Read SEC document
September 11, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 879 $64.31 $56,528.49
Disclosure

SEC source: 0001137789-25-000235 · wk-form4_1757974234.xml · nonDerivative · entry 4

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,904

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
September 11, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 313 $87.34 $27,337.42
Disclosure

SEC source: 0001137789-25-000235 · wk-form4_1757974234.xml · nonDerivative · entry 3

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,025

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
September 11, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 533 $68.83 $36,686.39
Disclosure

SEC source: 0001137789-25-000235 · wk-form4_1757974234.xml · nonDerivative · entry 2

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,712

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: All option exercises and the sale of Ordinary Shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on October 31, 2024.

Read SEC document
September 11, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 989 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000235 · wk-form4_1757974234.xml · nonDerivative · entry 1

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,179

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
September 10, 2025 Filed Sep 11, 2025 20:05 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 6,781 $191.53 $1,298,764.93
Disclosure

SEC source: 0001137789-25-000219 · wk-form4_1757621099.xml · nonDerivative · entry 5

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,190

F1 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $191.53 to $191.54. 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.

Read SEC document
September 09, 2025 Filed Sep 11, 2025 20:05 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 1,165 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000219 · wk-form4_1757621099.xml · derivative · entry 9

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 1,165 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Such RSUs vested 100% on September 9, 2025, the first anniversary of the grant.

F5 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Such RSUs vested 100% on September 9, 2025, the first anniversary of the grant.

Read SEC document
September 09, 2025 Filed Sep 11, 2025 20:05 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 2,652 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000219 · wk-form4_1757621099.xml · derivative · entry 8

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,958

Underlying: Ordinary Shares · 2,652 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, one-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years.

F4 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, one-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years.

Read SEC document
September 09, 2025 Filed Sep 11, 2025 20:05 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 599 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000219 · wk-form4_1757621099.xml · derivative · entry 7

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,397

Underlying: Ordinary Shares · 599 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, one-quarter of the shares vested on September 9, 2023 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years.

F3 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, one-quarter of the shares vested on September 9, 2023 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years.

Read SEC document
September 09, 2025 Filed Sep 11, 2025 20:05 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 1,408 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000219 · wk-form4_1757621099.xml · derivative · entry 6

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 1,408 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology plc Equity Incentive Plan (the "Plan"). Subject to the Reporting Person's continuous employment, one-quarter of the shares vested on September 9, 2022 and each one-year anniversary thereafter for a total vesting period of four years.

F2 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology plc Equity Incentive Plan (the "Plan"). Subject to the Reporting Person's continuous employment, one-quarter of the shares vested on September 9, 2022 and each one-year anniversary thereafter for a total vesting period of four years.

Read SEC document
September 09, 2025 Filed Sep 11, 2025 20:05 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 1,165 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000219 · wk-form4_1757621099.xml · nonDerivative · entry 4

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,971

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
September 09, 2025 Filed Sep 11, 2025 20:05 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 2,652 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000219 · wk-form4_1757621099.xml · nonDerivative · entry 3

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,806

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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September 09, 2025 Filed Sep 11, 2025 20:05 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 599 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000219 · wk-form4_1757621099.xml · nonDerivative · entry 2

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,154

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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September 09, 2025 Filed Sep 11, 2025 20:05 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 1,408 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000219 · wk-form4_1757621099.xml · nonDerivative · entry 1

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,555

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
August 20, 2025 Filed Aug 22, 2025 22:02 UTC Seagate Technology Holdings plc STX · Entity 2029 GrantRestricted Share Unit · Derivative 2,279 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000183 · wk-form4_1755900166.xml · derivative · entry 4

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,279

Underlying: Ordinary Shares · 2,279 shares

Expires not disclosed

F3 · derivative.exercise_date: 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.

F3 · derivative.expiration_date: 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.

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August 20, 2025 Filed Aug 22, 2025 22:02 UTC Seagate Technology Holdings plc STX · Entity 2029 GrantRestricted Share Unit · Derivative 7,595 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000183 · wk-form4_1755900166.xml · derivative · entry 3

Teh Ban Seng · CIK 0001801425 · EVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,595

Underlying: Ordinary Shares · 7,595 shares

Expires not disclosed

F3 · derivative.exercise_date: 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.

F3 · derivative.expiration_date: 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.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.