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person · Reporting owner

MOSLEY WILLIAM D

Disclosed activity across 2 companies

Tapewire entity
2030
SEC CIK
0001388390

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
CIRRUS LOGIC, INC.CRUS · Entity 3854DirectorJuly 29, 2026July 31, 2026
Seagate Technology Holdings plcSTX · Entity 2029Director · CEOOctober 01, 2026October 03, 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.

CIRRUS LOGIC, INC.

Report date July 29, 2026 · Filed July 31, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect3,622 Reported balance After 2026-07-29 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2026-07-29 · Grant · Acquired 1,998 · Balance 3,622

F1: Each restricted stock unit was the economic equivalent of one share of common stock. The restricted stock unit vested on July 29, 2026.

F2: Expiration Date of July 29, 2026.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect0 Reported balance After 2026-07-29 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2026-07-29 · Exercise / conversion · Disposed 1,998 · Balance 0

F1: Each restricted stock unit was the economic equivalent of one share of common stock. The restricted stock unit vested on July 29, 2026.

F2: Expiration Date of July 29, 2026.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect1,623 Reported balance After 2026-07-31 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2026-07-31 · Grant · Acquired 1,623 · Balance 1,623

F3: Each restricted stock unit represents a contingent right to receive one share of Cirrus Logic common stock.

F4: Restricted Stock Units granted upon re-election to Cirrus Logic, Inc.'s Board of Directors.

F5: 100% of the restricted stock units will vest on the earlier of: (a) the date of the Company's next Annual Meeting or (b) on July 31, 2027, the 1-year anniversary of the grant date.

Filing footnotes · ownership attribution and instrument terms

F1: Each restricted stock unit was the economic equivalent of one share of common stock. The restricted stock unit vested on July 29, 2026.

F2: Expiration Date of July 29, 2026.

F3: Each restricted stock unit represents a contingent right to receive one share of Cirrus Logic common stock.

F4: Restricted Stock Units granted upon re-election to Cirrus Logic, Inc.'s Board of Directors.

F5: 100% of the restricted stock units will vest on the earlier of: (a) the date of the Company's next Annual Meeting or (b) on July 31, 2027, the 1-year anniversary of the grant date.

Seagate Technology Holdings plc

Report date October 01, 2026 · Filed October 03, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Ordinary SharesSEC Table I · non-derivativeDirect362,108.25 Ending reported balance After 2026-10-01 transaction · row 16
16 source rows · reconciled sequence

Row 1 · 2026-10-01 · Sale · Disposed 360 · Balance 372,750.25

F1: All transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 18, 2026.

F2: These Ordinary Shares were sold in multiple trades at prices ranging from $928.44 to $929.30. 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 2 · 2026-10-01 · Sale · Disposed 855 · Balance 371,895.25

F3: These Ordinary Shares were sold in multiple trades at prices ranging from $929.51 to $930.50. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Row 3 · 2026-10-01 · Sale · Disposed 1,665 · Balance 370,230.25

F4: These Ordinary Shares were sold in multiple trades at prices ranging from $930.53 to $931.48. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Row 4 · 2026-10-01 · Sale · Disposed 1,320 · Balance 368,910.25

F5: These Ordinary Shares were sold in multiple trades at prices ranging from $931.56 to $932.55. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Row 5 · 2026-10-01 · Sale · Disposed 840 · Balance 368,070.25

F6: These Ordinary Shares were sold in multiple trades at prices ranging from $932.73 to $933.67. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Row 6 · 2026-10-01 · Sale · Disposed 822 · Balance 367,248.25

F7: These Ordinary Shares were sold in multiple trades at prices ranging from $933.77 to $934.76. 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 7 · 2026-10-01 · Sale · Disposed 640 · Balance 366,608.25

F8: These Ordinary Shares were sold in multiple trades at prices ranging from $934.83 to $935.70. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Row 8 · 2026-10-01 · Sale · Disposed 759 · Balance 365,849.25

F9: These Ordinary Shares were sold in multiple trades at prices ranging from $935.84 to $936.80. 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 9 · 2026-10-01 · Sale · Disposed 579 · Balance 365,270.25

F10: These Ordinary Shares were sold in multiple trades at prices ranging from $936.88 to $937.83. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Row 10 · 2026-10-01 · Sale · Disposed 640 · Balance 364,630.25

F11: These Ordinary Shares were sold in multiple trades at prices ranging from $937.91 to $938.67. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Row 11 · 2026-10-01 · Sale · Disposed 720 · Balance 363,910.25

F12: These Ordinary Shares were sold in multiple trades at prices ranging from $938.92 to $939.89. 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 · 2026-10-01 · Sale · Disposed 80 · Balance 363,830.25

F13: These Ordinary Shares were sold in multiple trades at prices ranging from $940.19 to $940.21. 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 · 2026-10-01 · Sale · Disposed 40 · Balance 363,790.25

Row 14 · 2026-10-01 · Sale · Disposed 280 · Balance 363,510.25

F14: These Ordinary Shares were sold in multiple trades at prices ranging from $942.72 to $943.68. 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 · 2026-10-01 · Sale · Disposed 440 · Balance 363,070.25

F15: These Ordinary Shares were sold in multiple trades at prices ranging from $944.50 to $945.46. 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 · 2026-10-01 · Sale · Disposed 962 · Balance 362,108.25

F16: These Ordinary Shares were sold in multiple trades at prices ranging from $945.60 to $946.34. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

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 February 18, 2026.

F2: These Ordinary Shares were sold in multiple trades at prices ranging from $928.44 to $929.30. 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 $929.51 to $930.50. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

F4: These Ordinary Shares were sold in multiple trades at prices ranging from $930.53 to $931.48. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

F5: These Ordinary Shares were sold in multiple trades at prices ranging from $931.56 to $932.55. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

F6: These Ordinary Shares were sold in multiple trades at prices ranging from $932.73 to $933.67. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

F7: These Ordinary Shares were sold in multiple trades at prices ranging from $933.77 to $934.76. 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.

F8: These Ordinary Shares were sold in multiple trades at prices ranging from $934.83 to $935.70. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

F9: These Ordinary Shares were sold in multiple trades at prices ranging from $935.84 to $936.80. 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.

F10: These Ordinary Shares were sold in multiple trades at prices ranging from $936.88 to $937.83. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

F11: These Ordinary Shares were sold in multiple trades at prices ranging from $937.91 to $938.67. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

F12: These Ordinary Shares were sold in multiple trades at prices ranging from $938.92 to $939.89. 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 $940.19 to $940.21. 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 $942.72 to $943.68. 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 $944.50 to $945.46. 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 $945.60 to $946.34. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Transaction 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
February 02, 2026 Filed Feb 3, 2026 21:48 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 100 $401.10 $40,110.00
Disclosure

SEC source: 0001137789-26-000034 · wk-form4_1770155321.xml · nonDerivative · entry 1

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 429,956

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 February 20, 2025.

F2 · balance_after: Includes 161 Ordinary Shares purchased by Reporting Person on January 31, 2026 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 02, 2026 Filed Jan 6, 2026 22:06 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 400 $289.03 $115,611.00
Disclosure

SEC source: 0001137789-26-000002 · wk-form4_1767737186.xml · nonDerivative · entry 9

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 429,895

F10 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $288.74 to $289.25. 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
January 02, 2026 Filed Jan 6, 2026 22:06 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 2,100 $288.01 $604,821.00
Disclosure

SEC source: 0001137789-26-000002 · wk-form4_1767737186.xml · nonDerivative · entry 8

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 430,295

F9 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $287.72 to $288.66. 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
January 02, 2026 Filed Jan 6, 2026 22:06 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 5,009 $287.27 $1,438,954.97
Disclosure

SEC source: 0001137789-26-000002 · wk-form4_1767737186.xml · nonDerivative · entry 7

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 432,395

F8 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $286.71 to $287.67. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 22:06 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 3,586 $286.32 $1,026,754.64
Disclosure

SEC source: 0001137789-26-000002 · wk-form4_1767737186.xml · nonDerivative · entry 6

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 437,404

F7 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $285.71 to $286.69. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 22:06 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 2,705 $285.23 $771,550.13
Disclosure

SEC source: 0001137789-26-000002 · wk-form4_1767737186.xml · nonDerivative · entry 5

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 440,990

F6 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $284.70 to $285.68. 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
January 02, 2026 Filed Jan 6, 2026 22:06 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,800 $284.08 $511,352.10
Disclosure

SEC source: 0001137789-26-000002 · wk-form4_1767737186.xml · nonDerivative · entry 4

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 443,695

F5 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $283.69 to $284.53. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 22:06 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,600 $283.22 $453,153.76
Disclosure

SEC source: 0001137789-26-000002 · wk-form4_1767737186.xml · nonDerivative · entry 3

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 445,495

F4 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $282.69 to $283.59. 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
January 02, 2026 Filed Jan 6, 2026 22:06 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 2,000 $282.09 $564,172.60
Disclosure

SEC source: 0001137789-26-000002 · wk-form4_1767737186.xml · nonDerivative · entry 2

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 447,095

F3 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $281.66 to $282.62. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 22:06 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 800 $281.09 $224,875.12
Disclosure

SEC source: 0001137789-26-000002 · wk-form4_1767737186.xml · nonDerivative · entry 1

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 449,095

F1 · shares: These Ordinary Shares were sold under a Rule 10b5-1 trading plan adopted by the Reporting Person February 20, 2025.

F2 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $280.66 to $281.52. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
December 11, 2025 Filed Dec 12, 2025 21:17 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 3,319 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000367 · wk-form4_1765574258.xml · derivative · entry 3

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,233

Underlying: Ordinary Shares · 3,319 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 restricted share unit awarded to the reporting person under the Seagate Technology Holdings 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.

F1 · 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. Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 11, 2024 and then in equal quarterly installments over the following three years for a total vesting period of four years.

Read SEC document
December 11, 2025 Filed Dec 12, 2025 21:17 UTC Seagate Technology Holdings plc STX · Entity 2029 Tax withholdingOrdinary Shares 1,678 $307.85 $516,563.91
Disclosure

SEC source: 0001137789-25-000367 · wk-form4_1765574258.xml · nonDerivative · entry 2

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 449,895

Read SEC document
December 11, 2025 Filed Dec 12, 2025 21:17 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 3,319 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000367 · wk-form4_1765574258.xml · nonDerivative · entry 1

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 451,573

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

Read SEC document
December 09, 2025 Filed Dec 11, 2025 21:04 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 2,415 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000357 · wk-form4_1765487073.xml · derivative · entry 6

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,573

Underlying: Ordinary Shares · 2,415 shares

Expires not disclosed

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

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

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

Read SEC document
December 09, 2025 Filed Dec 11, 2025 21:04 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 2,815 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000357 · wk-form4_1765487073.xml · derivative · entry 5

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,445

Underlying: Ordinary Shares · 2,815 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 1,221 $282.86 $345,372.06
Disclosure

SEC source: 0001137789-25-000357 · wk-form4_1765487073.xml · nonDerivative · entry 4

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 448,254

Read SEC document
December 09, 2025 Filed Dec 11, 2025 21:04 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 2,415 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000357 · wk-form4_1765487073.xml · nonDerivative · entry 3

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 449,475

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 1,423 $282.86 $402,509.78
Disclosure

SEC source: 0001137789-25-000357 · wk-form4_1765487073.xml · nonDerivative · entry 2

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 447,060

Read SEC document
December 09, 2025 Filed Dec 11, 2025 21:04 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 2,815 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000357 · wk-form4_1765487073.xml · nonDerivative · entry 1

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 448,483

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 01, 2025 Filed Dec 2, 2025 22:32 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 100 $274.89 $27,489.00
Disclosure

SEC source: 0001137789-25-000345 · wk-form4_1764714746.xml · nonDerivative · entry 8

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 445,668

Read SEC document
December 01, 2025 Filed Dec 2, 2025 22:32 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 800 $273.04 $218,432.00
Disclosure

SEC source: 0001137789-25-000345 · wk-form4_1764714746.xml · nonDerivative · entry 7

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 445,768

F8 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $272.81 to $273.35. 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
December 01, 2025 Filed Dec 2, 2025 22:32 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 5,894 $272.24 $1,604,606.14
Disclosure

SEC source: 0001137789-25-000345 · wk-form4_1764714746.xml · nonDerivative · entry 6

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 446,568

F7 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $271.78 to $272.74. 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
December 01, 2025 Filed Dec 2, 2025 22:32 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 5,718 $271.19 $1,550,655.27
Disclosure

SEC source: 0001137789-25-000345 · wk-form4_1764714746.xml · nonDerivative · entry 5

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 452,462

F6 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $270.78 to $271.76. 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
December 01, 2025 Filed Dec 2, 2025 22:32 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 5,338 $270.29 $1,442,828.84
Disclosure

SEC source: 0001137789-25-000345 · wk-form4_1764714746.xml · nonDerivative · entry 4

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 458,180

F5 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $269.78 to $270.74. 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
December 01, 2025 Filed Dec 2, 2025 22:32 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 650 $269.43 $175,130.35
Disclosure

SEC source: 0001137789-25-000345 · wk-form4_1764714746.xml · nonDerivative · entry 3

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 463,518

F4 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $268.78 to $269.71. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
December 01, 2025 Filed Dec 2, 2025 22:32 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 407 $268.58 $109,310.31
Disclosure

SEC source: 0001137789-25-000345 · wk-form4_1764714746.xml · nonDerivative · entry 2

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 464,168

F3 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $267.76 to $268.73. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
December 01, 2025 Filed Dec 2, 2025 22:32 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,093 $267.27 $292,124.80
Disclosure

SEC source: 0001137789-25-000345 · wk-form4_1764714746.xml · nonDerivative · entry 1

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 464,575

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 February 20, 2025.

F2 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $266.72 to $267.68. 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
November 03, 2025 Filed Nov 5, 2025 21:33 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 300 $268.65 $80,595.99
Disclosure

SEC source: 0001137789-25-000328 · wk-form4_1762378405.xml · nonDerivative · entry 13

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 465,668

F14 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $268.37 to $269.00. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
November 03, 2025 Filed Nov 5, 2025 21:33 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,901 $267.04 $507,640.76
Disclosure

SEC source: 0001137789-25-000328 · wk-form4_1762378405.xml · nonDerivative · entry 12

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 465,968

F13 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $266.78 to $267.68. 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
November 03, 2025 Filed Nov 5, 2025 21:33 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 5,506 $266.25 $1,465,957.63
Disclosure

SEC source: 0001137789-25-000328 · wk-form4_1762378405.xml · nonDerivative · entry 11

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 467,869

F12 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $265.77 to $266.73. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
November 03, 2025 Filed Nov 5, 2025 21:33 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 4,194 $265.44 $1,113,273.81
Disclosure

SEC source: 0001137789-25-000328 · wk-form4_1762378405.xml · nonDerivative · entry 10

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 473,375

F11 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $264.77 to $265.76. 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
November 03, 2025 Filed Nov 5, 2025 21:33 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 400 $263.58 $105,430.00
Disclosure

SEC source: 0001137789-25-000328 · wk-form4_1762378405.xml · nonDerivative · entry 9

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 477,569

F10 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $263.07 to $263.83. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
November 03, 2025 Filed Nov 5, 2025 21:33 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 600 $262.21 $157,326.00
Disclosure

SEC source: 0001137789-25-000328 · wk-form4_1762378405.xml · nonDerivative · entry 8

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 477,969

F9 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $262.05 to $262.37. 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
November 03, 2025 Filed Nov 5, 2025 21:33 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 400 $261.58 $104,632.04
Disclosure

SEC source: 0001137789-25-000328 · wk-form4_1762378405.xml · nonDerivative · entry 7

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 478,569

F8 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $261.04 to $261.90. 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
November 03, 2025 Filed Nov 5, 2025 21:33 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 599 $260.32 $155,932.52
Disclosure

SEC source: 0001137789-25-000328 · wk-form4_1762378405.xml · nonDerivative · entry 6

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 478,969

F7 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $260.00 to $260.65. 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
November 03, 2025 Filed Nov 5, 2025 21:33 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,000 $258.96 $258,963.50
Disclosure

SEC source: 0001137789-25-000328 · wk-form4_1762378405.xml · nonDerivative · entry 5

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 479,568

F6 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $258.72 to $259.60. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
November 03, 2025 Filed Nov 5, 2025 21:33 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,200 $258.08 $309,699.72
Disclosure

SEC source: 0001137789-25-000328 · wk-form4_1762378405.xml · nonDerivative · entry 4

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 480,568

F5 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $257.64 to $258.47. 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
November 03, 2025 Filed Nov 5, 2025 21:33 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,000 $256.99 $256,987.30
Disclosure

SEC source: 0001137789-25-000328 · wk-form4_1762378405.xml · nonDerivative · entry 3

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 481,768

F4 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $256.60 to $257.52. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
November 03, 2025 Filed Nov 5, 2025 21:33 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,400 $255.98 $358,366.96
Disclosure

SEC source: 0001137789-25-000328 · wk-form4_1762378405.xml · nonDerivative · entry 2

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 482,768

F3 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $255.60 to $256.54. 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
November 03, 2025 Filed Nov 5, 2025 21:33 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,500 $254.44 $381,656.55
Disclosure

SEC source: 0001137789-25-000328 · wk-form4_1762378405.xml · nonDerivative · entry 1

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 484,168

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 February 20, 2025.

F2 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $253.95 to $254.89. 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
October 01, 2025 Filed Oct 3, 2025 20:08 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,000 $257.83 $257,827.00
Disclosure

SEC source: 0001137789-25-000243 · wk-form4_1759522134.xml · nonDerivative · entry 21

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 485,668

F22 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $257.56 to $258.15. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
October 01, 2025 Filed Oct 3, 2025 20:08 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 3,885 $256.88 $997,981.13
Disclosure

SEC source: 0001137789-25-000243 · wk-form4_1759522134.xml · nonDerivative · entry 20

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 486,668

F21 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $256.50 to $257.36. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
October 01, 2025 Filed Oct 3, 2025 20:08 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,011 $255.69 $258,502.29
Disclosure

SEC source: 0001137789-25-000243 · wk-form4_1759522134.xml · nonDerivative · entry 19

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 490,553

F20 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $255.49 to $256.38. 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
October 01, 2025 Filed Oct 3, 2025 20:08 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 500 $254.65 $127,325.00
Disclosure

SEC source: 0001137789-25-000243 · wk-form4_1759522134.xml · nonDerivative · entry 18

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 491,564

F19 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $254.40 to $254.95. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
October 01, 2025 Filed Oct 3, 2025 20:08 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,900 $253.76 $482,149.32
Disclosure

SEC source: 0001137789-25-000243 · wk-form4_1759522134.xml · nonDerivative · entry 17

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 492,064

F18 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $253.38 to $254.23. 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
October 01, 2025 Filed Oct 3, 2025 20:08 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 800 $252.45 $201,962.00
Disclosure

SEC source: 0001137789-25-000243 · wk-form4_1759522134.xml · nonDerivative · entry 16

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 493,964

F17 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $252.34 to $252.67. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
October 01, 2025 Filed Oct 3, 2025 20:08 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 700 $252.03 $176,421.98
Disclosure

SEC source: 0001137789-25-000243 · wk-form4_1759522134.xml · nonDerivative · entry 15

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 494,764

F16 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $251.27 to $252.23. 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
October 01, 2025 Filed Oct 3, 2025 20:08 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,004 $250.43 $251,431.72
Disclosure

SEC source: 0001137789-25-000243 · wk-form4_1759522134.xml · nonDerivative · entry 14

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 495,464

F15 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $249.94 to $250.89. 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
October 01, 2025 Filed Oct 3, 2025 20:08 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,500 $249.42 $374,124.00
Disclosure

SEC source: 0001137789-25-000243 · wk-form4_1759522134.xml · nonDerivative · entry 13

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 496,468

F14 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $248.91 to $249.82. 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
October 01, 2025 Filed Oct 3, 2025 20:08 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 800 $248.30 $198,641.12
Disclosure

SEC source: 0001137789-25-000243 · wk-form4_1759522134.xml · nonDerivative · entry 12

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 497,968

F13 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $247.86 to $248.84. 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

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