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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
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionNQ Options · Derivative 14,000 $0.00 Strike: $46.23 $0.00
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · derivative · entry 30

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 83,100

Underlying: Ordinary Shares · 14,000 shares

Expires 2027-09-09

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

F30 · derivative.exercise_date: Options granted to the Reporting Person are subject to a four year vesting schedule. One quarter of the option shares vested on September 9, 2021. The remaining option shares vest in equal monthly installments over the 36 months following September 9, 2021.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 640 $927.90 $593,853.63
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 29

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 373,110.25

F29 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $927.41 to $928.36. 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, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 480 $926.78 $444,852.38
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 28

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 373,750.25

F28 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $926.33 to $927.20. 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, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,080 $925.88 $999,953.21
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 27

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 374,230.25

F27 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $925.27 to $926.22. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 640 $924.72 $591,820.67
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 26

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 375,310.25

F26 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $924.21 to $925.19. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 760 $923.78 $702,074.40
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 25

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 375,950.25

F25 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $923.19 to $924.18. 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, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 800 $922.66 $738,126.00
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 24

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 376,710.25

F24 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $922.16 to $923.03. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 930 $921.64 $857,120.55
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 23

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 377,510.25

F23 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $921.15 to $922.08. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 630 $920.62 $579,988.08
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 22

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 378,440.25

F22 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $920.10 to $921.09. 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, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 840 $919.56 $772,428.38
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 21

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 379,070.25

F21 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $919.07 to $920.03. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 920 $918.49 $845,012.82
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 20

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 379,910.25

F20 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $918.05 to $919.02. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 400 $917.22 $366,888.80
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 19

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 380,830.25

F19 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $917.02 to $917.62. 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
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 480 $916.10 $439,725.98
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 18

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 381,230.25

F18 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $915.61 to $916.45. 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, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 960 $915.01 $878,407.97
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 17

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 381,710.25

F17 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $914.56 to $915.52. 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
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 904 $913.94 $826,203.39
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 16

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 382,670.25

F16 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $913.55 to $914.39. 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, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 696 $913.08 $635,502.57
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 15

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 383,574.25

F15 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $912.54 to $913.53. 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
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,146 $912.04 $1,045,202.19
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 14

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 384,270.25

F14 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $911.51 to $912.47. 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
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 840 $910.69 $764,982.37
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 13

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 385,416.25

F13 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $910.22 to $911.20. 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, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 307 $909.84 $279,322.23
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 12

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 386,256.25

F12 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $909.22 to $910.20. 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, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,027 $908.58 $933,109.71
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 11

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 386,563.25

F11 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $908.16 to $909.15. 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, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 560 $907.43 $508,161.98
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 10

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 387,590.25

F10 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $907.08 to $908.07. 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, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 601 $906.42 $544,760.34
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 9

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 388,150.25

F9 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $906.06 to $906.98. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 480 $905.38 $434,583.12
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 8

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 388,751.25

F8 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $905.01 to $905.98. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 480 $904.33 $434,079.60
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 7

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 389,231.25

F7 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $904.00 to $904.95. 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, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 696 $903.36 $628,740.79
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 6

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 389,711.25

F6 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $903.00 to $903.79. 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, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 384 $902.55 $346,578.55
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 5

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 390,407.25

F5 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $901.97 to $902.93. 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
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 440 $901.49 $396,654.81
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 4

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 390,791.25

F4 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $900.96 to $901.95. 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, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 517 $900.46 $465,538.75
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 3

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 391,231.25

F3 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $899.96 to $900.87. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 360 $898.10 $323,314.42
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 2

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 391,748.25

F2 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $897.79 to $898.58. 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, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 14,000 $46.23 $647,220.00
Disclosure

SEC source: 0001137789-26-000261 · wk-form4_1790971667.xml · nonDerivative · entry 1

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 392,108.25

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 February 18, 2026.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 962 $945.97 $910,022.76
Disclosure

SEC source: 0001137789-26-000262 · wk-form4_1790971675.xml · nonDerivative · entry 16

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 362,108.25

F16 · price: 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.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 440 $944.81 $415,714.82
Disclosure

SEC source: 0001137789-26-000262 · wk-form4_1790971675.xml · nonDerivative · entry 15

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 363,070.25

F15 · price: 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.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 280 $943.21 $264,099.61
Disclosure

SEC source: 0001137789-26-000262 · wk-form4_1790971675.xml · nonDerivative · entry 14

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 363,510.25

F14 · price: 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.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 40 $941.22 $37,648.80
Disclosure

SEC source: 0001137789-26-000262 · wk-form4_1790971675.xml · nonDerivative · entry 13

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 363,790.25

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 80 $940.20 $75,216.00
Disclosure

SEC source: 0001137789-26-000262 · wk-form4_1790971675.xml · nonDerivative · entry 12

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 363,830.25

F13 · price: 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.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 720 $939.27 $676,274.83
Disclosure

SEC source: 0001137789-26-000262 · wk-form4_1790971675.xml · nonDerivative · entry 11

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 363,910.25

F12 · price: 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.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 640 $938.32 $600,524.42
Disclosure

SEC source: 0001137789-26-000262 · wk-form4_1790971675.xml · nonDerivative · entry 10

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 364,630.25

F11 · price: 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.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 579 $937.33 $542,713.20
Disclosure

SEC source: 0001137789-26-000262 · wk-form4_1790971675.xml · nonDerivative · entry 9

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 365,270.25

F10 · price: 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.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 759 $936.43 $710,750.29
Disclosure

SEC source: 0001137789-26-000262 · wk-form4_1790971675.xml · nonDerivative · entry 8

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 365,849.25

F9 · price: 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.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 640 $935.15 $598,495.62
Disclosure

SEC source: 0001137789-26-000262 · wk-form4_1790971675.xml · nonDerivative · entry 7

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 366,608.25

F8 · price: 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.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 822 $934.35 $768,036.77
Disclosure

SEC source: 0001137789-26-000262 · wk-form4_1790971675.xml · nonDerivative · entry 6

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 367,248.25

F7 · price: 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.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 840 $933.28 $783,952.01
Disclosure

SEC source: 0001137789-26-000262 · wk-form4_1790971675.xml · nonDerivative · entry 5

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 368,070.25

F6 · price: 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.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,320 $932.04 $1,230,288.58
Disclosure

SEC source: 0001137789-26-000262 · wk-form4_1790971675.xml · nonDerivative · entry 4

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 368,910.25

F5 · price: 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.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,665 $930.99 $1,550,105.01
Disclosure

SEC source: 0001137789-26-000262 · wk-form4_1790971675.xml · nonDerivative · entry 3

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 370,230.25

F4 · price: 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.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 855 $930.03 $795,178.56
Disclosure

SEC source: 0001137789-26-000262 · wk-form4_1790971675.xml · nonDerivative · entry 2

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 371,895.25

F3 · price: 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.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:07 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 360 $929.01 $334,443.20
Disclosure

SEC source: 0001137789-26-000262 · wk-form4_1790971675.xml · nonDerivative · entry 1

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 372,750.25

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 18, 2026.

F2 · price: 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.

Read SEC document
September 15, 2026 Filed Sep 16, 2026 20:10 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 97,889.25 $772.14 $75,584,518.74
Disclosure

SEC source: 0001137789-26-000252 · wk-form4_1789589420.xml · nonDerivative · entry 2

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 378,108.25

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 177,000 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000252 · wk-form4_1789589420.xml · derivative · entry 3

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 177,000 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 177,000 $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000252 · wk-form4_1789589420.xml · nonDerivative · entry 1

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 475,997.5

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.

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 1,869.75 $781.23 $1,460,696.19
Disclosure

SEC source: 0001137789-26-000239 · wk-form4_1789503334.xml · nonDerivative · entry 2

MOSLEY WILLIAM D · CIK 0001388390 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 298,997.5

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

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.