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person · Reporting owner

Morris John Christopher

Disclosed activity across 1 company

Tapewire entity
20491
SEC CIK
0001988271

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Seagate Technology Holdings plcSTX · Entity 2029EVP & CTOSeptember 21, 2026September 22, 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 21, 2026 · Filed September 22, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Ordinary SharesSEC Table I · non-derivativeDirect22,693.25 Ending reported balance After 2026-09-21 transaction · row 27
27 source rows · reconciled sequence

Row 1 · 2026-09-21 · Exercise / conversion · Acquired 915 · Balance 32,047.25

F1: All transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 29, 2026.

Row 2 · 2026-09-21 · Sale · Disposed 40 · Balance 32,007.25

Row 3 · 2026-09-21 · Sale · Disposed 80 · Balance 31,927.25

F2: These Ordinary Shares were sold in multiple trades at prices ranging from $864.79 to $865.43. 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 4 · 2026-09-21 · Sale · Disposed 40 · Balance 31,887.25

Row 5 · 2026-09-21 · Sale · Disposed 160 · Balance 31,727.25

F3: These Ordinary Shares were sold in multiple trades at prices ranging from $867.77 to $868.44. 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 · 2026-09-21 · Sale · Disposed 80 · Balance 31,647.25

F4: These Ordinary Shares were sold in multiple trades at prices ranging from $868.79 to $869.47. 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 · 2026-09-21 · Sale · Disposed 200 · Balance 31,447.25

F5: These Ordinary Shares were sold in multiple trades at prices ranging from $869.82 to $870.80. 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 · 2026-09-21 · Sale · Disposed 520 · Balance 30,927.25

F6: These Ordinary Shares were sold in multiple trades at prices ranging from $870.89 to $871.77. 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 · 2026-09-21 · Sale · Disposed 1,000 · Balance 29,927.25

F7: These Ordinary Shares were sold in multiple trades at prices ranging from $871.91 to $872.90. 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 · 2026-09-21 · Sale · Disposed 1,040 · Balance 28,887.25

F8: These Ordinary Shares were sold in multiple trades at prices ranging from $872.94 to $873.93. 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.

Row 11 · 2026-09-21 · Sale · Disposed 986 · Balance 27,901.25

F9: These Ordinary Shares were sold in multiple trades at prices ranging from $873.96 to $874.94. 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 12 · 2026-09-21 · Sale · Disposed 974 · Balance 26,927.25

F10: These Ordinary Shares were sold in multiple trades at prices ranging from $874.98 to $875.96. 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 · 2026-09-21 · Sale · Disposed 760 · Balance 26,167.25

F11: These Ordinary Shares were sold in multiple trades at prices ranging from $875.99 to $876.93. 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.

Row 14 · 2026-09-21 · Sale · Disposed 418 · Balance 25,749.25

F12: These Ordinary Shares were sold in multiple trades at prices ranging from $876.99 to $877.76. 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 15 · 2026-09-21 · Sale · Disposed 280 · Balance 25,469.25

F13: These Ordinary Shares were sold in multiple trades at prices ranging from $878.01 to $878.82. 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.

Row 16 · 2026-09-21 · Sale · Disposed 200 · Balance 25,269.25

F14: These Ordinary Shares were sold in multiple trades at prices ranging from $879.58 to $879.90. 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 · 2026-09-21 · Sale · Disposed 741 · Balance 24,528.25

F15: These Ordinary Shares were sold in multiple trades at prices ranging from $880.62 to $881.54. 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.

Row 18 · 2026-09-21 · Sale · Disposed 200 · Balance 24,328.25

F16: These Ordinary Shares were sold in multiple trades at prices ranging from $881.65 to $882.17. 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 · 2026-09-21 · Sale · Disposed 320 · Balance 24,008.25

F17: These Ordinary Shares were sold in multiple trades at prices ranging from $882.78 to $883.77. 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 · 2026-09-21 · Sale · Disposed 40 · Balance 23,968.25

Row 21 · 2026-09-21 · Sale · Disposed 120 · Balance 23,848.25

F18: These Ordinary Shares were sold in multiple trades at prices ranging from $887.75 to $888.25. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Row 22 · 2026-09-21 · Sale · Disposed 40 · Balance 23,808.25

Row 23 · 2026-09-21 · Sale · Disposed 40 · Balance 23,768.25

Row 24 · 2026-09-21 · Sale · Disposed 915 · Balance 22,853.25

Row 25 · 2026-09-21 · Sale · Disposed 80 · Balance 22,773.25

Row 26 · 2026-09-21 · Sale · Disposed 40 · Balance 22,733.25

Row 27 · 2026-09-21 · Sale · Disposed 40 · Balance 22,693.25

NQ Stock OptionSEC Table II · derivative / convertible security · Conversion / exercise price $158.40 · Expires 2032-08-20Direct17,378 Reported balance After 2026-09-21 transaction · row 28 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 28 · 2026-09-21 · Exercise / conversion · Disposed 915 · Balance 17,378

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. Subject to continuous employment, one-quarter vested on August 20, 2026 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years.

Filing footnotes · ownership attribution and instrument terms

F1: All transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 29, 2026.

F2: These Ordinary Shares were sold in multiple trades at prices ranging from $864.79 to $865.43. 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.

F3: These Ordinary Shares were sold in multiple trades at prices ranging from $867.77 to $868.44. 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 $868.79 to $869.47. 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 $869.82 to $870.80. 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 $870.89 to $871.77. 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 $871.91 to $872.90. 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 $872.94 to $873.93. 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.

F9: These Ordinary Shares were sold in multiple trades at prices ranging from $873.96 to $874.94. 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.

F10: These Ordinary Shares were sold in multiple trades at prices ranging from $874.98 to $875.96. 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 $875.99 to $876.93. 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.

F12: These Ordinary Shares were sold in multiple trades at prices ranging from $876.99 to $877.76. 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.

F13: These Ordinary Shares were sold in multiple trades at prices ranging from $878.01 to $878.82. 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.

F14: These Ordinary Shares were sold in multiple trades at prices ranging from $879.58 to $879.90. 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 $880.62 to $881.54. 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.

F16: These Ordinary Shares were sold in multiple trades at prices ranging from $881.65 to $882.17. 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 $882.78 to $883.77. 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 $887.75 to $888.25. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

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. Subject to continuous employment, one-quarter vested on August 20, 2026 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years.

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
December 09, 2025 Filed Dec 11, 2025 21:04 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 499 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000359 · wk-form4_1765487088.xml · derivative · entry 5

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,498

Underlying: Ordinary Shares · 499 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 21:04 UTC Seagate Technology Holdings plc STX · Entity 2029 Tax withholdingOrdinary Shares 288 $282.86 $81,463.68
Disclosure

SEC source: 0001137789-25-000359 · wk-form4_1765487088.xml · nonDerivative · entry 4

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,852

Read SEC document
December 09, 2025 Filed Dec 11, 2025 21:04 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 631 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000359 · wk-form4_1765487088.xml · nonDerivative · entry 3

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,140

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 21:04 UTC Seagate Technology Holdings plc STX · Entity 2029 Tax withholdingOrdinary Shares 228 $282.86 $64,492.08
Disclosure

SEC source: 0001137789-25-000359 · wk-form4_1765487088.xml · nonDerivative · entry 2

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,509

Read SEC document
December 09, 2025 Filed Dec 11, 2025 21:04 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 499 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000359 · wk-form4_1765487088.xml · nonDerivative · entry 1

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,737

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 16, 2025 Filed Sep 17, 2025 21:33 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 377 $211.26 $79,645.02
Disclosure

SEC source: 0001137789-25-000241 · wk-form4_1758144780.xml · nonDerivative · entry 1

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,238

F1 · shares: These Ordinary Shares were sold under a Rule 10b5-1 trading plan adopted by the Reporting Person on June 1, 2025.

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 6,935 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000238 · wk-form4_1757974255.xml · derivative · entry 12

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 6,935 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.

F8 · 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 6,935 of the 7,985 Performance Share Units granted on September 9, 2022. The 6,935 Ordinary Shares vested on September 14, 2025.

F8 · 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 6,935 of the 7,985 Performance Share Units granted on September 9, 2022. The 6,935 Ordinary Shares vested on September 14, 2025.

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September 14, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 GrantPerformance-Based Restricted Share Units · Derivative 6,935 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000238 · wk-form4_1757974255.xml · derivative · entry 11

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,935

Underlying: Ordinary Shares · 6,935 shares

Expires not disclosed

F8 · 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 6,935 of the 7,985 Performance Share Units granted on September 9, 2022. The 6,935 Ordinary Shares vested on September 14, 2025.

F8 · 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 6,935 of the 7,985 Performance Share Units granted on September 9, 2022. The 6,935 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 Tax withholdingOrdinary Shares 3,163 $195.99 $619,916.37
Disclosure

SEC source: 0001137789-25-000238 · wk-form4_1757974255.xml · nonDerivative · entry 9

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,615

Read SEC document
September 14, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 6,935 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000238 · wk-form4_1757974255.xml · nonDerivative · entry 8

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,778

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 12, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,300 $197.85 $257,203.96
Disclosure

SEC source: 0001137789-25-000238 · wk-form4_1757974255.xml · nonDerivative · entry 7

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,843

F6 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $197.54 to $198.22. 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 12, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 2,954 $197.00 $581,935.05
Disclosure

SEC source: 0001137789-25-000238 · wk-form4_1757974255.xml · nonDerivative · entry 6

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,143

F5 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $196.44 to $197.33. 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 12, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 5,081 $195.96 $995,686.48
Disclosure

SEC source: 0001137789-25-000238 · wk-form4_1757974255.xml · nonDerivative · entry 5

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,097

F4 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $195.42 to $196.41. 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 12, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 4,200 $194.94 $818,734.98
Disclosure

SEC source: 0001137789-25-000238 · wk-form4_1757974255.xml · nonDerivative · entry 4

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 19,178

F3 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $194.40 to $195.38. 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 12, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,812 $193.92 $351,389.74
Disclosure

SEC source: 0001137789-25-000238 · wk-form4_1757974255.xml · nonDerivative · entry 3

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,378

F1 · shares: All sales of Ordinary Shares reported herein were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 1, 2025.

F2 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $193.33 to $194.28. 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 11, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 941 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000238 · wk-form4_1757974255.xml · derivative · entry 10

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,535

Underlying: Ordinary Shares · 941 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.

F7 · 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.

F7 · 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 Tax withholdingOrdinary Shares 430 $196.81 $84,628.30
Disclosure

SEC source: 0001137789-25-000238 · wk-form4_1757974255.xml · nonDerivative · entry 2

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,190

Read SEC document
September 11, 2025 Filed Sep 15, 2025 22:10 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 941 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000238 · wk-form4_1757974255.xml · nonDerivative · entry 1

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,620

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 / conversionRestricted Share Unit · Derivative 560 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000222 · wk-form4_1757621126.xml · derivative · entry 12

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 560 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: 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.

F6 · 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 2,526 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000222 · wk-form4_1757621126.xml · derivative · entry 11

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,579

Underlying: Ordinary Shares · 2,526 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. 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.

F5 · 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 499 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000222 · wk-form4_1757621126.xml · derivative · entry 10

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,997

Underlying: Ordinary Shares · 499 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, 2023 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, 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 1,885 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000222 · wk-form4_1757621126.xml · derivative · entry 9

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 1,885 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 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.

F3 · 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 Tax withholdingOrdinary Shares 256 $191.59 $49,047.04
Disclosure

SEC source: 0001137789-25-000222 · wk-form4_1757621126.xml · nonDerivative · entry 8

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,679

Read SEC document
September 09, 2025 Filed Sep 11, 2025 20:05 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 560 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000222 · wk-form4_1757621126.xml · nonDerivative · entry 7

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,935

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 Tax withholdingOrdinary Shares 1,152 $191.59 $220,711.68
Disclosure

SEC source: 0001137789-25-000222 · wk-form4_1757621126.xml · nonDerivative · entry 6

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,375

Read SEC document
September 09, 2025 Filed Sep 11, 2025 20:05 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 2,526 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000222 · wk-form4_1757621126.xml · nonDerivative · entry 5

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,527

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 Tax withholdingOrdinary Shares 228 $191.59 $43,682.52
Disclosure

SEC source: 0001137789-25-000222 · wk-form4_1757621126.xml · nonDerivative · entry 4

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,001

Read SEC document
September 09, 2025 Filed Sep 11, 2025 20:05 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 499 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000222 · wk-form4_1757621126.xml · nonDerivative · entry 3

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,229

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 Tax withholdingOrdinary Shares 860 $191.59 $164,767.40
Disclosure

SEC source: 0001137789-25-000222 · wk-form4_1757621126.xml · nonDerivative · entry 2

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,730

Read SEC document
September 09, 2025 Filed Sep 11, 2025 20:05 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 1,885 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000222 · wk-form4_1757621126.xml · nonDerivative · entry 1

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,590

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 · balance_after: The amount of securities beneficially owned has been updated to reflect 8,676 shares held continuously by the reporting person since prior to becoming a reporting person director for the Company, but not previously reported due to an administrative oversight.

F2 · balance_after: Includes 168 Ordinary Shares purchased by Reporting Person on July 31, 2025 under the Issuer's Employee Stock Purchase Plan. Such acquisition is exempt from reporting pursuant to Rule 16b-3 under the Securities Exchange Act of 1934.

Read SEC document
August 20, 2025 Filed Aug 22, 2025 22:03 UTC Seagate Technology Holdings plc STX · Entity 2029 GrantRestricted Share Unit · Derivative 1,221 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000186 · wk-form4_1755900189.xml · derivative · entry 4

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,221

Underlying: Ordinary Shares · 1,221 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.

Read SEC document
August 20, 2025 Filed Aug 22, 2025 22:03 UTC Seagate Technology Holdings plc STX · Entity 2029 GrantRestricted Share Unit · Derivative 4,070 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000186 · wk-form4_1755900189.xml · derivative · entry 3

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,070

Underlying: Ordinary Shares · 4,070 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.

Read SEC document
August 20, 2025 Filed Aug 22, 2025 22:03 UTC Seagate Technology Holdings plc STX · Entity 2029 GrantRestricted Share Unit · Derivative 7,056 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000186 · wk-form4_1755900189.xml · derivative · entry 2

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,056

Underlying: Ordinary Shares · 7,056 shares

Expires not disclosed

F2 · derivative.exercise_date: Consists of a grant of Restricted Share Unit (RSU) awarded to the Reporting Person under the Plan, subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, such RSUs vest as to one-quarter of the shares on August 20, 2026 and then in equal quarterly installments thereafter.

F2 · derivative.expiration_date: Consists of a grant of Restricted Share Unit (RSU) awarded to the Reporting Person under the Plan, subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, such RSUs vest as to one-quarter of the shares on August 20, 2026 and then in equal quarterly installments thereafter.

Read SEC document
August 20, 2025 Filed Aug 22, 2025 22:03 UTC Seagate Technology Holdings plc STX · Entity 2029 GrantNQ Stock Option · Derivative 18,816 $0.00 Strike: $158.40 $0.00
Disclosure

SEC source: 0001137789-25-000186 · wk-form4_1755900189.xml · derivative · entry 1

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,816

Underlying: Ordinary Shares · 18,816 shares

Expires 2032-08-20

F1 · derivative.exercise_date: Options granted to the Reporting Person under the Seagate Technology plc 2022 Equity Incentive Plan the ("Plan") are subject to a four-year vesting schedule. Subject to continuous employment, 25% shall vest on August 20, 2026 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years.

Read SEC document
June 11, 2025 Filed Jun 12, 2025 20:31 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 941 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000126 · wk-form4_1749760277.xml · derivative · entry 3

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,476

Underlying: Ordinary Shares · 941 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_price: Each restricted share unit ("RSU") represents a contingent right to receive one Ordinary Share of the Issuer.

F2 · derivative.exercise_date: Consists of a grant of RSUs awarded to the reporting person under the Seagate Technology plc 2022 Equity Incentive Plan subject to a four-year vesting schedule. One-quarter vested starting on September 11, 2024 and then in equal quarterly installments thereafter.

F2 · derivative.expiration_date: Consists of a grant of RSUs awarded to the reporting person under the Seagate Technology plc 2022 Equity Incentive Plan subject to a four-year vesting schedule. One-quarter vested starting on September 11, 2024 and then in equal quarterly installments thereafter.

Read SEC document
June 11, 2025 Filed Jun 12, 2025 20:31 UTC Seagate Technology Holdings plc STX · Entity 2029 Tax withholdingOrdinary Shares 288 $126.49 $36,429.12
Disclosure

SEC source: 0001137789-25-000126 · wk-form4_1749760277.xml · nonDerivative · entry 2

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,861

Read SEC document
June 11, 2025 Filed Jun 12, 2025 20:31 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 941 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000126 · wk-form4_1749760277.xml · nonDerivative · entry 1

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,149

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
June 09, 2025 Filed Jun 10, 2025 21:00 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 499 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000114 · wk-form4_1749589203.xml · derivative · entry 3

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,496

Underlying: Ordinary Shares · 499 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_price: Each restricted share unit ("RSU") represents a contingent right to receive one Ordinary Share of the Issuer.

F2 · derivative.exercise_date: Consists of a grant of RSUs awarded to the Reporting Person under the 2022 Plan subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 9, 2023 and then in equal quarterly installments thereafter.

F2 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person under the 2022 Plan subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 9, 2023 and then in equal quarterly installments thereafter.

Read SEC document
June 09, 2025 Filed Jun 10, 2025 21:00 UTC Seagate Technology Holdings plc STX · Entity 2029 Tax withholdingOrdinary Shares 153 $130.17 $19,916.01
Disclosure

SEC source: 0001137789-25-000114 · wk-form4_1749589203.xml · nonDerivative · entry 2

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,208

Read SEC document
June 09, 2025 Filed Jun 10, 2025 21:00 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 499 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000114 · wk-form4_1749589203.xml · nonDerivative · entry 1

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,361

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
March 11, 2025 Filed Mar 12, 2025 20:32 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 941 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000057 · wk-form4_1741811517.xml · derivative · entry 3

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,417

Underlying: Ordinary Shares · 941 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_price: Each restricted share unit ("RSU") represents a contingent right to receive one Ordinary Share of the Issuer.

F2 · derivative.exercise_date: Consists of a grant of RSUs awarded to the reporting person under the Seagate Technology plc 2022 Equity Incentive Plan subject to a four-year vesting schedule. Such RSUs vested as to one-quarter of the shares on September 11, 2024 and then in equal quarterly installments thereafter.

F2 · derivative.expiration_date: Consists of a grant of RSUs awarded to the reporting person under the Seagate Technology plc 2022 Equity Incentive Plan subject to a four-year vesting schedule. Such RSUs vested as to one-quarter of the shares on September 11, 2024 and then in equal quarterly installments thereafter.

Read SEC document
March 11, 2025 Filed Mar 12, 2025 20:32 UTC Seagate Technology Holdings plc STX · Entity 2029 Tax withholdingOrdinary Shares 288 $86.97 $25,047.36
Disclosure

SEC source: 0001137789-25-000057 · wk-form4_1741811517.xml · nonDerivative · entry 2

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,862

Read SEC document
March 11, 2025 Filed Mar 12, 2025 20:32 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 941 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000057 · wk-form4_1741811517.xml · nonDerivative · entry 1

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,150

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
March 09, 2025 Filed Mar 10, 2025 21:31 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 499 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000046 · wk-form4_1741642275.xml · derivative · entry 3

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,995

Underlying: Ordinary Shares · 499 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_price: Each restricted share unit ("RSU") represents a contingent right to receive one Ordinary Share of the Issuer.

F2 · derivative.exercise_date: Consists of a grant of RSUs awarded to the Reporting Person under the 2022 Plan subject to a four-year vesting schedule. One-quarter of the shares vested on September 9, 2023 and then in equal quarterly installments thereafter.

F2 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person under the 2022 Plan subject to a four-year vesting schedule. One-quarter of the shares vested on September 9, 2023 and then in equal quarterly installments thereafter.

Read SEC document
March 09, 2025 Filed Mar 10, 2025 21:31 UTC Seagate Technology Holdings plc STX · Entity 2029 Tax withholdingOrdinary Shares 153 $88.00 $13,464.00
Disclosure

SEC source: 0001137789-25-000046 · wk-form4_1741642275.xml · nonDerivative · entry 2

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,209

Read SEC document
March 09, 2025 Filed Mar 10, 2025 21:31 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 499 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000046 · wk-form4_1741642275.xml · nonDerivative · entry 1

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,362

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
February 20, 2025 Filed Feb 24, 2025 21:55 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionPerformance-Based Restricted Share Units · Derivative 4,428 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000035 · wk-form4_1740434125.xml · derivative · entry 3

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 4,428 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: On January 18, 2025 the Compensation and People Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to the 4,428 Performance Share Units granted to Mr. Morris on February 20, 2024. The 4,428 Ordinary Shares vested on February 20, 2025.

F2 · derivative.expiration_date: On January 18, 2025 the Compensation and People Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to the 4,428 Performance Share Units granted to Mr. Morris on February 20, 2024. The 4,428 Ordinary Shares vested on February 20, 2025.

Read SEC document
February 20, 2025 Filed Feb 24, 2025 21:55 UTC Seagate Technology Holdings plc STX · Entity 2029 Tax withholdingOrdinary Shares 1,415 $102.64 $145,235.60
Disclosure

SEC source: 0001137789-25-000035 · wk-form4_1740434125.xml · nonDerivative · entry 2

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,863

Read SEC document
February 20, 2025 Filed Feb 24, 2025 21:55 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 4,428 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000035 · wk-form4_1740434125.xml · nonDerivative · entry 1

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,278

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 · balance_after: Includes 93 Ordinary Shares purchased by Reporting Person on January 31, 2025 under the Issuer's Employee Stock Purchase Plan. Such acquisition is exempt from reporting pursuant to Rule 16b-3 under the Securities Exchange Act of 1934.

Read SEC document
January 18, 2025 Filed Jan 22, 2025 22:00 UTC Seagate Technology Holdings plc STX · Entity 2029 GrantPerformance-Based Restricted Share Units · Derivative 4,428 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000013 · wk-form4_1737583220.xml · derivative · entry 1

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,428

Underlying: Ordinary Shares · 4,428 shares

Expires not disclosed

F1 · derivative.exercise_date: On January 18, 2025 the Compensation and People Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to the 4,428 Performance Share Units granted to Mr. Morris on February 20, 2024. The 4,428 Ordinary Shares will vest on February 20, 2025, subject to continuous service through such date.

F1 · derivative.expiration_date: On January 18, 2025 the Compensation and People Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to the 4,428 Performance Share Units granted to Mr. Morris on February 20, 2024. The 4,428 Ordinary Shares will vest on February 20, 2025, subject to continuous service through such date.

Read SEC document

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