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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
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionNQ Stock Option · Derivative 915 $0.00 Strike: $158.40 $0.00
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · derivative · entry 28

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,378

Underlying: Ordinary Shares · 915 shares

Expires 2032-08-20

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.

F19 · derivative.exercise_date: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 40 $902.07 $36,082.80
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 27

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,693.25

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 40 $899.53 $35,981.20
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 26

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,733.25

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 80 $897.28 $71,782.40
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 25

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,773.25

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 915 $894.27 $818,257.05
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 24

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,853.25

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 40 $893.15 $35,726.00
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 23

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,768.25

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 40 $890.54 $35,621.60
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 22

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,808.25

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 120 $887.92 $106,550.00
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 21

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,848.25

F18 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 40 $886.27 $35,450.80
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 20

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,968.25

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 320 $883.08 $282,584.80
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 19

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,008.25

F17 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 200 $881.90 $176,380.40
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 18

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,328.25

F16 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 741 $881.16 $652,938.37
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 17

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,528.25

F15 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 200 $879.71 $175,942.40
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 16

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,269.25

F14 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 280 $878.38 $245,945.20
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 15

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,469.25

F13 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 418 $877.36 $366,738.15
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 14

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,749.25

F12 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 760 $876.54 $666,173.97
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 13

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,167.25

F11 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 974 $875.35 $852,589.93
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 12

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,927.25

F10 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 986 $874.50 $862,260.75
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 11

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 27,901.25

F9 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,040 $873.49 $908,431.06
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 10

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,887.25

F8 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,000 $872.42 $872,424.40
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 9

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 29,927.25

F7 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 520 $871.56 $453,211.98
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 8

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 30,927.25

F6 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 200 $870.28 $174,056.40
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 7

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 31,447.25

F5 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 80 $869.21 $69,536.64
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 6

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 31,647.25

F4 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 160 $868.11 $138,897.20
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 5

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 31,727.25

F3 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 40 $865.80 $34,632.00
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 4

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 31,887.25

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 80 $865.11 $69,208.80
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 3

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 31,927.25

F2 · price: 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.

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 40 $863.66 $34,546.40
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 2

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,007.25

Read SEC document
September 21, 2026 Filed Sep 22, 2026 20:49 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 915 $158.40 $144,936.00
Disclosure

SEC source: 0001137789-26-000256 · wk-form4_1790110183.xml · nonDerivative · entry 1

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,047.25

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 January 29, 2026.

Read SEC document
September 15, 2026 Filed Sep 16, 2026 20:10 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 15,465.5 $772.15 $11,941,704.38
Disclosure

SEC source: 0001137789-26-000250 · wk-form4_1789589401.xml · nonDerivative · entry 2

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,132.25

F2 · shares: Represents sales made pursuant to Issuer mandated sell-to-cover solely to satisfy tax withholding obligations.

Read SEC document
September 14, 2026 Filed Sep 16, 2026 20:10 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionPerformance-Based Restricted Share Units · Derivative 30,130 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000250 · wk-form4_1789589401.xml · derivative · entry 3

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 30,130 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: 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.

F3 · derivative.expiration_date: 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.

Read SEC document
September 14, 2026 Filed Sep 16, 2026 20:10 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 30,130 $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000250 · wk-form4_1789589401.xml · nonDerivative · entry 1

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,597.75

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: 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.

Read SEC document
September 14, 2026 Filed Sep 15, 2026 20:15 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 492.75 $781.23 $384,952.31
Disclosure

SEC source: 0001137789-26-000242 · wk-form4_1789503354.xml · nonDerivative · entry 2

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,467.75

F1 · shares: Represents sales made pursuant to Issuer mandated sell-to-cover solely to satisfy tax withholding obligations.

Read SEC document
September 11, 2026 Filed Sep 15, 2026 20:15 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 942 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000242 · wk-form4_1789503354.xml · derivative · entry 3

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,768

Underlying: Ordinary Shares · 942 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. One-quarter of the shares vested on September 11, 2024 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 restricted share unit awarded to the reporting person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan. One-quarter of the shares vested on September 11, 2024 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 11, 2026 Filed Sep 15, 2026 20:15 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 942 $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000242 · wk-form4_1789503354.xml · nonDerivative · entry 1

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,960.5

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, 2026 Filed Sep 11, 2026 20:47 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 319.25 $862.14 $275,236.92
Disclosure

SEC source: 0001137789-26-000224 · wk-form4_1789159620.xml · nonDerivative · entry 4

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,018.5

Read SEC document
September 10, 2026 Filed Sep 11, 2026 20:47 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 253 $862.13 $218,117.63
Disclosure

SEC source: 0001137789-26-000224 · wk-form4_1789159620.xml · nonDerivative · entry 2

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,706.75

Read SEC document
September 09, 2026 Filed Sep 11, 2026 20:47 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 631 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000224 · wk-form4_1789159620.xml · derivative · entry 6

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,055

Underlying: Ordinary Shares · 631 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 Plan. 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.

F2 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person under the Plan. 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, 2026 Filed Sep 11, 2026 20:47 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 500 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000224 · wk-form4_1789159620.xml · derivative · entry 5

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 500 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"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested 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"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years

Read SEC document
September 09, 2026 Filed Sep 11, 2026 20:47 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 631 $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000224 · wk-form4_1789159620.xml · nonDerivative · entry 3

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,337.75

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, 2026 Filed Sep 11, 2026 20:47 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 500 $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000224 · wk-form4_1789159620.xml · nonDerivative · entry 1

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,959.75

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 21, 2026 Filed Aug 24, 2026 21:11 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 608.5 $849.35 $516,832.40
Disclosure

SEC source: 0001137789-26-000186 · wk-form4_1787605879.xml · nonDerivative · entry 6

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 15,459.75

Read SEC document
August 21, 2026 Filed Aug 24, 2026 21:11 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 2,028 $849.35 $1,722,491.53
Disclosure

SEC source: 0001137789-26-000186 · wk-form4_1787605879.xml · nonDerivative · entry 4

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,847.25

Read SEC document
August 21, 2026 Filed Aug 24, 2026 21:11 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 879 $849.35 $746,582.87
Disclosure

SEC source: 0001137789-26-000186 · wk-form4_1787605879.xml · nonDerivative · entry 2

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 12,805.25

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:11 UTC Seagate Technology Holdings plc STX · Entity 2029 GrantNQ Stock Option · Derivative 6,152 $0.00 Strike: $850.24 $0.00
Disclosure

SEC source: 0001137789-26-000186 · wk-form4_1787605879.xml · derivative · entry 16

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,152

Underlying: Ordinary Shares · 6,152 shares

Expires 2033-08-20

F7 · derivative.exercise_date: Consists of Options awarded to the Reporting Person under the Plan subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, such Options vest as to one-quarter of the shares on August 20, 2027 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
August 20, 2026 Filed Aug 24, 2026 21:11 UTC Seagate Technology Holdings plc STX · Entity 2029 GrantRestricted Share Unit · Derivative 393 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000186 · wk-form4_1787605879.xml · derivative · entry 15

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 393

Underlying: Ordinary Shares · 393 shares

Expires not disclosed

F6 · 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, 2027.

F6 · 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, 2027.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:11 UTC Seagate Technology Holdings plc STX · Entity 2029 GrantRestricted Share Unit · Derivative 1,309 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000186 · wk-form4_1787605879.xml · derivative · entry 14

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,309

Underlying: Ordinary Shares · 1,309 shares

Expires not disclosed

F6 · 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, 2027.

F6 · 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, 2027.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:11 UTC Seagate Technology Holdings plc STX · Entity 2029 GrantRestricted Share Unit · Derivative 2,307 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000186 · wk-form4_1787605879.xml · derivative · entry 13

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,307

Underlying: Ordinary Shares · 2,307 shares

Expires not disclosed

F5 · derivative.exercise_date: Consists of a grant of RSUs 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, 2027 and then in equal quarterly installments thereafter.

F5 · derivative.expiration_date: Consists of a grant of RSUs 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, 2027 and then in equal quarterly installments thereafter.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:11 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionNQ Stock Option · Derivative 523 $0.00 Strike: $158.40 $0.00
Disclosure

SEC source: 0001137789-26-000186 · wk-form4_1787605879.xml · derivative · entry 12

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 18,293

Underlying: Ordinary Shares · 523 shares

Expires 2032-08-20

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 Options awarded to the Reporting Person under the Plan subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, such Options vested as to one-quarter of the shares 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
August 20, 2026 Filed Aug 24, 2026 21:11 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 1,221 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000186 · wk-form4_1787605879.xml · derivative · entry 11

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 1,221 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. 100% of such RSUs vested 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. 100% of such RSUs vested on the first anniversary of the grant date, August 20, 2026.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:11 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 4,070 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000186 · wk-form4_1787605879.xml · derivative · entry 10

Morris John Christopher · CIK 0001988271 · EVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 4,070 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. 100% of such RSUs vested 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. 100% of such RSUs vested on the first anniversary of the grant date, August 20, 2026.

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.