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Nasdaq · USD

STX

Seagate Technology Holdings plc

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Tapewire entity
2029
SEC CIK
0001137789
Parsed reports
754

Last 12 months

Inside the activity.

0 purchase rows · 715 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 2025048
Dec 2025011
Jan 2026015
Feb 2026018
Mar 2026025
Apr 2026021
May 2026090
Jun 2026064
Jul 2026046
Aug 20260204
Sep 20260129
Oct 2026044

Latest available

Insider transactions

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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 dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
June 04, 2025 Filed Jun 5, 2025 20:53 UTC
Teh Ban SengEVP & Chief Commercial Officer
Exercise / conversionOrdinary Shares 28,120 $75.94 $2,135,432.80
Disclosure

SEC source: 0001137789-25-000104 · wk-form4_1749156590.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 46,733

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

Read SEC document
June 03, 2025 Filed Jun 4, 2025 20:41 UTC
MOSLEY WILLIAM DDirector · Chief Executive Officer
Exercise / conversionNQ Options · Derivative 50,000 $0.00 Strike: $54.78 $0.00
Disclosure

SEC source: 0001137789-25-000101 · wk-form4_1749069670.xml · derivative · entry 6

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 54,347

Underlying: Ordinary Shares · 50,000 shares

Expires 2026-09-09

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.

F6 · derivative.exercise_date: Options granted to the Reporting Person under the Issuer's 2012 Equity Incentive Plan are subject to a four year vesting schedule. Subject to continuous employment, one quarter of the option shares vested on September 9, 2020. The remaining option shares vest in equal monthly installments over the 36 months following September 9, 2020.

Read SEC document
June 03, 2025 Filed Jun 4, 2025 20:41 UTC
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 50,000 $120.27 $6,013,555.00
Disclosure

SEC source: 0001137789-25-000101 · wk-form4_1749069670.xml · nonDerivative · entry 5

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 515,677

F5 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $120.00 to $120.58. 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
June 03, 2025 Filed Jun 4, 2025 20:41 UTC
MOSLEY WILLIAM DDirector · Chief Executive Officer
Exercise / conversionOrdinary Shares 50,000 $54.78 $2,739,000.00
Disclosure

SEC source: 0001137789-25-000101 · wk-form4_1749069670.xml · nonDerivative · entry 4

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 565,677

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

Read SEC document
June 03, 2025 Filed Jun 4, 2025 20:23 UTC Amendment
MOSLEY WILLIAM DDirector · Chief Executive Officer
Exercise / conversionOrdinary Shares 50,000 $54.78 $2,739,000.00
Disclosure

SEC source: 0001137789-25-000098 · wk-form4a_1749068597.xml · nonDerivative · entry 8

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 515,677

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

Read SEC document
June 03, 2025 Filed Jun 5, 2025 20:53 UTC
Teh Ban SengEVP & Chief Commercial Officer
Exercise / conversionNQ Options · Derivative 6,923 $0.00 Strike: $68.83 $0.00
Disclosure

SEC source: 0001137789-25-000104 · wk-form4_1749156590.xml · derivative · entry 7

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,520

Underlying: Ordinary Shares · 6,923 shares

Expires 2029-09-09

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

F3 · derivative.exercise_date: Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 9, 2023 and the remaining options vest in equal monthly installments over the 36 months following September 9, 2023.

Read SEC document
June 03, 2025 Filed Jun 5, 2025 20:53 UTC
Teh Ban SengEVP & Chief Commercial Officer
SaleOrdinary Shares 11,309 $120.00 $1,357,080.00
Disclosure

SEC source: 0001137789-25-000104 · wk-form4_1749156590.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 18,613

Read SEC document
June 03, 2025 Filed Jun 5, 2025 20:53 UTC
Teh Ban SengEVP & Chief Commercial Officer
Exercise / conversionOrdinary Shares 6,923 $68.83 $476,510.09
Disclosure

SEC source: 0001137789-25-000104 · wk-form4_1749156590.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 29,922

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 Ordinary Shares were sold under a Rule 10b5-1 trading plan adopted by the Reporting Person on October 31, 2024.

Read SEC document
June 02, 2025 Filed Jun 4, 2025 20:41 UTC SaleOrdinary Shares 750 $117.01 $87,757.50
Disclosure

SEC source: 0001137789-25-000102 · wk-form4_1749069696.xml · nonDerivative · entry 1

Conyers Yolanda Lee · CIK 0001906375 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,055

F1 · shares: These Ordinary Shares were sold under a Rule 10b5-1 trading plan adopted by the Reporting Person on June 5, 2024.

Read SEC document
June 02, 2025 Filed Jun 4, 2025 20:41 UTC
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 7,586 $119.40 $905,734.26
Disclosure

SEC source: 0001137789-25-000101 · wk-form4_1749069670.xml · nonDerivative · entry 3

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 515,677

F4 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $119.17 to $119.72. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, 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
June 02, 2025 Filed Jun 4, 2025 20:41 UTC
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 9,715 $118.73 $1,153,483.32
Disclosure

SEC source: 0001137789-25-000101 · wk-form4_1749069670.xml · nonDerivative · entry 2

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 523,263

F3 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $118.16 to $119.14. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
June 02, 2025 Filed Jun 4, 2025 20:41 UTC
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 2,699 $117.94 $318,315.20
Disclosure

SEC source: 0001137789-25-000101 · wk-form4_1749069670.xml · nonDerivative · entry 1

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 532,978

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 $117.16 to $118.15. 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
June 02, 2025 Filed Jun 6, 2025 20:20 UTC SaleOrdinary Shares 24,190 $119.00 $2,878,646.29
Disclosure

SEC source: 0001137789-25-000107 · wk-form4_1749241210.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,835

Read SEC document
May 30, 2025 Filed May 30, 2025 21:07 UTC Exercise / conversionNQ Options · Derivative 26,816 $0.00 Strike: $87.34 $0.00
Disclosure

SEC source: 0001137789-25-000094 · wk-form4_1748639199.xml · derivative · entry 6

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,364

Underlying: Ordinary Shares · 26,816 shares

Expires 2028-09-09

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

F7 · derivative.exercise_date: Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, one-quarter of the options will vest on September 9, 2022 and the remaining options vest in equal monthly installments over the 36 months following September 9, 2022.

Read SEC document
May 30, 2025 Filed May 30, 2025 21:07 UTC SaleOrdinary Shares 11,185 $117.86 $1,318,236.14
Disclosure

SEC source: 0001137789-25-000094 · wk-form4_1748639199.xml · nonDerivative · entry 5

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,082

F4 · shares: The option exercise and sales of Ordinary Shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 27, 2025.

F6 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $117.67 to $118.24. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, 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
May 30, 2025 Filed May 30, 2025 21:07 UTC SaleOrdinary Shares 15,631 $117.38 $1,834,702.69
Disclosure

SEC source: 0001137789-25-000094 · wk-form4_1748639199.xml · nonDerivative · entry 4

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 49,267

F4 · shares: The option exercise and sales of Ordinary Shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 27, 2025.

F5 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $116.67 to $117.65. 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
May 30, 2025 Filed May 30, 2025 21:07 UTC Exercise / conversionOrdinary Shares 26,816 $87.34 $2,342,109.44
Disclosure

SEC source: 0001137789-25-000094 · wk-form4_1748639199.xml · nonDerivative · entry 3

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 64,898

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

F4 · shares: The option exercise and sales of Ordinary Shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 27, 2025.

Read SEC document
May 29, 2025 Filed May 30, 2025 21:07 UTC SaleOrdinary Shares 9,100 $117.56 $1,069,755.05
Disclosure

SEC source: 0001137789-25-000094 · wk-form4_1748639199.xml · nonDerivative · entry 2

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,082

F1 · shares: These Ordinary Shares were sold under a Rule 10b5-1 trading plan adopted by the Reporting Person on January 27, 2025.

F3 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $117.45 to $117.92. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, 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
May 29, 2025 Filed May 30, 2025 21:07 UTC SaleOrdinary Shares 15,918 $117.17 $1,865,091.37
Disclosure

SEC source: 0001137789-25-000094 · wk-form4_1748639199.xml · nonDerivative · entry 1

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 47,182

F1 · shares: These Ordinary Shares were sold under a Rule 10b5-1 trading plan adopted by the Reporting Person on January 27, 2025.

F2 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $116.43 to $117.41. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
May 27, 2025 Filed May 28, 2025 21:41 UTC
Teh Ban SengEVP & Chief Commercial Officer
SaleOrdinary Shares 4,201 $115.00 $483,115.00
Disclosure

SEC source: 0001137789-25-000092 · wk-form4_1748468459.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,999

F1 · shares: These Ordinary Shares were sold under a Rule 10b5-1 trading plan adopted by the Reporting Person on October 31, 2024.

Read SEC document
May 22, 2025 Filed May 23, 2025 20:03 UTC
BRUNER JUDYDirector
SaleOrdinary Shares 10,446 $108.71 $1,135,558.55
Disclosure

SEC source: 0001137789-25-000090 · wk-form4_1748030587.xml · nonDerivative · entry 1

BRUNER JUDY · CIK 0001112668 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · The Bruner Living Trust

Disclosed balance after: 12,268

F1 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $108.50 to $108.84. 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
May 22, 2025 Filed May 23, 2025 20:03 UTC
Chong Kian FattSVP, Global Operations
SaleOrdinary Shares 6,410 $111.26 $713,148.40
Disclosure

SEC source: 0001137789-25-000089 · wk-form4_1748030575.xml · nonDerivative · entry 1

Chong Kian Fatt · CIK 0001987421 · SVP, Global Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $111.17 to $111.30. 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
May 22, 2025 Filed May 23, 2025 20:02 UTC
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 400 $111.06 $44,424.00
Disclosure

SEC source: 0001137789-25-000088 · wk-form4_1748030563.xml · nonDerivative · entry 6

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 485,677

F7 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $110.96 to $111.17. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
May 22, 2025 Filed May 23, 2025 20:02 UTC
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 51,000 $110.00 $5,610,076.50
Disclosure

SEC source: 0001137789-25-000088 · wk-form4_1748030563.xml · nonDerivative · entry 5

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 486,077

F6 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $109.76 to $110.74. 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
May 22, 2025 Filed May 23, 2025 20:02 UTC
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 5,195 $108.94 $565,955.77
Disclosure

SEC source: 0001137789-25-000088 · wk-form4_1748030563.xml · nonDerivative · entry 4

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 537,077

F5 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $108.69 to $109.59. 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
May 22, 2025 Filed May 23, 2025 20:02 UTC
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 7,777 $108.08 $840,556.82
Disclosure

SEC source: 0001137789-25-000088 · wk-form4_1748030563.xml · nonDerivative · entry 3

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 542,272

F4 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $107.68 to $108.67. 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
May 22, 2025 Filed May 23, 2025 20:02 UTC
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 3,828 $107.43 $411,241.27
Disclosure

SEC source: 0001137789-25-000088 · wk-form4_1748030563.xml · nonDerivative · entry 2

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 550,049

F3 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $106.67 to $107.65. 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
May 22, 2025 Filed May 23, 2025 20:02 UTC
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 1,800 $106.00 $190,793.52
Disclosure

SEC source: 0001137789-25-000088 · wk-form4_1748030563.xml · nonDerivative · entry 1

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 553,877

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

F2 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $105.66 to $106.50. 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
May 22, 2025 Filed Jun 4, 2025 20:23 UTC Amendment
MOSLEY WILLIAM DDirector · Chief Executive Officer
Exercise / conversionNQ Stock Options · Derivative 50,000 $0.00 Strike: $54.78 $0.00
Disclosure

SEC source: 0001137789-25-000098 · wk-form4a_1749068597.xml · derivative · entry 9

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 104,347

Underlying: Ordinary Shares · 50,000 shares

Expires 2026-09-09

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.

F8 · derivative.exercise_date: Options granted to the Reporting Person under the Issuer's 2012 Equity Incentive Plan are subject to a four year vesting schedule. One quarter of the option shares vested on September 9, 2020. The remaining option shares vest in equal monthly installments over the 36 months following September 9, 2020.

Read SEC document
May 22, 2025 Filed Jun 4, 2025 20:23 UTC Amendment
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 400 $111.06 $44,424.00
Disclosure

SEC source: 0001137789-25-000098 · wk-form4a_1749068597.xml · nonDerivative · entry 7

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 535,677

F7 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $110.96 to $111.17. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
May 22, 2025 Filed Jun 4, 2025 20:23 UTC Amendment
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 51,000 $110.00 $5,610,076.50
Disclosure

SEC source: 0001137789-25-000098 · wk-form4a_1749068597.xml · nonDerivative · entry 6

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 536,077

F6 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $109.76 to $110.74. 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
May 22, 2025 Filed Jun 4, 2025 20:23 UTC Amendment
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 5,195 $108.94 $565,955.77
Disclosure

SEC source: 0001137789-25-000098 · wk-form4a_1749068597.xml · nonDerivative · entry 5

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 587,077

F5 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $108.69 to $109.59. 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
May 22, 2025 Filed Jun 4, 2025 20:23 UTC Amendment
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 7,777 $108.08 $840,556.82
Disclosure

SEC source: 0001137789-25-000098 · wk-form4a_1749068597.xml · nonDerivative · entry 4

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 592,272

F4 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $107.68 to $108.67. 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
May 22, 2025 Filed Jun 4, 2025 20:23 UTC Amendment
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 3,828 $107.43 $411,241.27
Disclosure

SEC source: 0001137789-25-000098 · wk-form4a_1749068597.xml · nonDerivative · entry 3

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 600,049

F3 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $106.67 to $107.65. 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
May 22, 2025 Filed Jun 4, 2025 20:23 UTC Amendment
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 1,800 $106.00 $190,793.52
Disclosure

SEC source: 0001137789-25-000098 · wk-form4a_1749068597.xml · nonDerivative · entry 2

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 603,877

F2 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $105.66 to $106.50. 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.

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May 22, 2025 Filed Jun 4, 2025 20:23 UTC Amendment
MOSLEY WILLIAM DDirector · Chief Executive Officer
Exercise / conversionOrdinary Shares 50,000 $54.78 $2,739,000.00
Disclosure

SEC source: 0001137789-25-000098 · wk-form4a_1749068597.xml · nonDerivative · entry 1

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 605,677

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 20, 2025.

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April 01, 2025 Filed Apr 2, 2025 21:19 UTC
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 13,200 $84.77 $1,118,978.52
Disclosure

SEC source: 0001137789-25-000063 · wk-form4_1743628738.xml · nonDerivative · entry 2

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 555,677

F3 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $84.44 to $85.29. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

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April 01, 2025 Filed Apr 2, 2025 21:19 UTC
MOSLEY WILLIAM DDirector · Chief Executive Officer
SaleOrdinary Shares 6,800 $84.14 $572,140.44
Disclosure

SEC source: 0001137789-25-000063 · wk-form4_1743628738.xml · nonDerivative · entry 1

MOSLEY WILLIAM D · CIK 0001388390 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 568,877

F1 · shares: All Ordinary Shares were sold under a Rule 10b5-1 trading plan adopted by the Reporting Person. on May 6, 2024.

F2 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $83.43 to $84.41. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

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March 22, 2025 Filed Mar 25, 2025 20:41 UTC
Teh Ban SengEVP & Chief Commercial Officer
Exercise / conversionPerformance-Based Restricted Share Units · Derivative 3,514 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000061 · wk-form4_1742935313.xml · derivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 3,514 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: On July 20, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 3,514 of the 7,030 Threshold Performance Share Units granted to Mr. Teh on March 22, 2021. The 3,514 Ordinary Shares vested on March 22, 2025.

F1 · derivative.expiration_date: On July 20, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 3,514 of the 7,030 Threshold Performance Share Units granted to Mr. Teh on March 22, 2021. The 3,514 Ordinary Shares vested on March 22, 2025.

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March 22, 2025 Filed Mar 25, 2025 20:41 UTC
Teh Ban SengEVP & Chief Commercial Officer
Exercise / conversionOrdinary Shares 3,514 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000061 · wk-form4_1742935313.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,200

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

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March 11, 2025 Filed Mar 12, 2025 20:32 UTC
Teh Ban SengEVP & Chief Commercial Officer
Exercise / conversionRestricted Share Unit · Derivative 988 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000059 · wk-form4_1741811537.xml · derivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,889

Underlying: Ordinary Shares · 988 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted share unit ("RSU") represents a contingent right to receive one Ordinary Share of the Issuer.

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

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

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March 11, 2025 Filed Mar 12, 2025 20:32 UTC
Teh Ban SengEVP & Chief Commercial Officer
Exercise / conversionOrdinary Shares 988 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000059 · wk-form4_1741811537.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,686

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

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March 11, 2025 Filed Mar 12, 2025 20:32 UTC
Chong Kian FattSVP, Global Operations
Exercise / conversionRestricted Share Unit · Derivative 678 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000058 · wk-form4_1741811527.xml · derivative · entry 2

Chong Kian Fatt · CIK 0001987421 · SVP, Global Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,782

Underlying: Ordinary Shares · 678 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted share unit ("RSU") represents a contingent right to receive one Ordinary Share of the Issuer.

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

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

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March 11, 2025 Filed Mar 12, 2025 20:32 UTC
Chong Kian FattSVP, Global Operations
Exercise / conversionOrdinary Shares 678 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000058 · wk-form4_1741811527.xml · nonDerivative · entry 1

Chong Kian Fatt · CIK 0001987421 · SVP, Global Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,410

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

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March 11, 2025 Filed Mar 12, 2025 20:32 UTC Exercise / conversionRestricted Share Unit · Derivative 941 $0.00 $0.00
Disclosure

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

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,417

Underlying: Ordinary Shares · 941 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted share unit ("RSU") represents a contingent right to receive one Ordinary Share of the Issuer.

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

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

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March 11, 2025 Filed Mar 12, 2025 20:32 UTC Tax withholdingOrdinary Shares 288 $86.97 $25,047.36
Disclosure

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

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,862

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March 11, 2025 Filed Mar 12, 2025 20:32 UTC Exercise / conversionOrdinary Shares 941 $0.00 $0.00
Disclosure

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

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,150

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

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March 11, 2025 Filed Mar 12, 2025 20:31 UTC Exercise / conversionRestricted Share Unit · Derivative 1,694 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000056 · wk-form4_1741811506.xml · derivative · entry 3

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,949

Underlying: Ordinary Shares · 1,694 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted share unit ("RSU") represents a contingent right to receive one Ordinary Share of the Issuer.

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

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

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March 11, 2025 Filed Mar 12, 2025 20:31 UTC Tax withholdingOrdinary Shares 856 $86.97 $74,446.32
Disclosure

SEC source: 0001137789-25-000056 · wk-form4_1741811506.xml · nonDerivative · entry 2

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,100

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March 11, 2025 Filed Mar 12, 2025 20:31 UTC Exercise / conversionOrdinary Shares 1,694 $0.00 $0.00
Disclosure

SEC source: 0001137789-25-000056 · wk-form4_1741811506.xml · nonDerivative · entry 1

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,956

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

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