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Romano Gianluca

Disclosed activity across 1 company

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20489
SEC CIK
0001764650

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Seagate Technology Holdings plcSTX · Entity 2029EVP & CFOSeptember 14, 2026September 16, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Seagate Technology Holdings plc

Report date September 14, 2026 · Filed September 16, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Ordinary SharesSEC Table I · non-derivativeDirect70,756.5 Ending reported balance After 2026-09-15 transaction · row 2
2 source rows · reconciled sequence

Row 1 · 2026-09-14 · Exercise / conversion · Acquired 90,380 · Balance 120,740

F1: 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.

Row 2 · 2026-09-15 · Sale · Disposed 49,983.5 · Balance 70,756.5

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

Performance-Based Restricted Share UnitsSEC Table II · derivative / convertible security · Conversion / exercise price $0.00Direct0 Reported balance After 2026-09-14 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2026-09-14 · Exercise / conversion · Disposed 90,380 · Balance 0

F3: 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.

Filing footnotes · ownership attribution and instrument terms

F1: 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.

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

F3: 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.

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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,146 $805.89 $923,545.24
Disclosure

SEC source: 0001137789-26-000170 · wk-form4_1786479668.xml · nonDerivative · entry 7

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 30,355.25

F8 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $805.35 to $806.33. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 620 $804.78 $498,961.80
Disclosure

SEC source: 0001137789-26-000170 · wk-form4_1786479668.xml · nonDerivative · entry 6

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 31,501.25

F7 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $804.30 to $805.28. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,227 $803.82 $986,282.72
Disclosure

SEC source: 0001137789-26-000170 · wk-form4_1786479668.xml · nonDerivative · entry 5

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,121.25

F6 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $803.26 to $804.23. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 679 $802.67 $545,011.23
Disclosure

SEC source: 0001137789-26-000170 · wk-form4_1786479668.xml · nonDerivative · entry 4

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,348.25

F5 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $802.21 to $803.17. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 767 $801.71 $614,908.27
Disclosure

SEC source: 0001137789-26-000170 · wk-form4_1786479668.xml · nonDerivative · entry 3

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 34,027.25

F4 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $801.19 to $802.18. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 520 $800.42 $416,217.98
Disclosure

SEC source: 0001137789-26-000170 · wk-form4_1786479668.xml · nonDerivative · entry 2

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 34,794.25

F3 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $800.18 to $801.14. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 320 $799.64 $255,886.02
Disclosure

SEC source: 0001137789-26-000170 · wk-form4_1786479668.xml · nonDerivative · entry 1

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,314.25

F1 · shares: All sales transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on April 30, 2026

F2 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $799.13 to $799.92. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 320 $798.33 $255,466.82
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 29

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,634.25

F30 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $797.98 to $798.97. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 240 $797.34 $191,360.40
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 28

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,954.25

F29 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $796.94 to $797.61. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 93 $796.40 $74,065.61
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 27

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 36,194.25

F28 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $795.90 to $796.79. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 480 $795.02 $381,609.22
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 26

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 36,287.25

F27 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $794.50 to $795.39. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 547 $793.77 $434,190.77
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 25

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 36,767.25

F26 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $793.44 to $794.31. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 280 $793.15 $222,082.14
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 24

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 37,314.25

F25 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $792.40 to $793.35. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 240 $791.50 $189,958.80
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 23

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 37,594.25

F24 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $791.3 to $791.91. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 80 $790.54 $63,242.80
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 22

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 37,834.25

F23 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $790.17 to $790.90. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 240 $789.45 $189,467.21
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 21

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 37,914.25

F22 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $789.17 to $790.14. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 160 $788.60 $126,176.40
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 20

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,154.25

F21 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $788.11 to $789.00. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 200 $787.35 $157,469.20
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 19

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,314.25

F20 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $786.92 to $787.55. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 200 $785.08 $157,016.40
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 18

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,514.25

F19 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $784.92 to $785.26. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 120 $784.34 $94,120.80
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 17

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,714.25

F18 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $783.87 to $784.86. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 200 $782.96 $156,592.40
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 16

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,834.25

F17 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $782.59 to $783.49. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 120 $781.89 $93,826.80
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 15

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 39,034.25

F16 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $781.39 to $782.26. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 80 $780.22 $62,417.60
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 14

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 39,154.25

Read SEC document
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 440 $779.73 $343,080.41
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 13

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 39,234.25

F15 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $779.22 to $780.20. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 120 $778.54 $93,424.80
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 12

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 39,674.25

F14 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $777.95 to $778.89. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 200 $776.94 $155,387.20
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 11

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 39,794.25

F13 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $776.55 to $777.21. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 127 $775.52 $98,490.94
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 10

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 39,994.25

F12 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $775.22 to $776.07. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 192 $774.27 $148,660.09
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 9

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,121.25

F11 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $774.09 to 774.52. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 280 $773.60 $216,607.61
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 8

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,313.25

F10 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $773.06 to $774.02. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 320 $772.45 $247,184.80
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 7

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,593.25

F9 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $772.06 to $773.00. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 321 $771.40 $247,618.79
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 6

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,913.25

F8 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $771.03 to $772.00. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 320 $770.27 $246,485.66
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 5

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 41,234.25

F7 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $770.03 to $770.91. 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
August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 560 $769.21 $430,754.80
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 4

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 41,554.25

F6 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $768.69 to $769.66. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

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August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 400 $767.81 $307,124.00
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 3

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 42,114.25

F5 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $767.22 to $768.20. 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.

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August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 160 $765.58 $122,492.00
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 2

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 42,514.25

F4 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $765.35 to $765.76. 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.

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August 07, 2026 Filed Aug 11, 2026 20:21 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 200 $763.39 $152,678.80
Disclosure

SEC source: 0001137789-26-000169 · wk-form4_1786479660.xml · nonDerivative · entry 1

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 42,674.25

F1 · shares: All sales transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on April 30, 2026.

F2 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $762.99 to $763.68. 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.

F3 · balance_after: Includes 14 Ordinary Shares purchased by Reporting Person on July 31, 2026 under the Issuer's Employee Stock Purchase Plan. Such acquisition is exempt from reporting pursuant to Rule 16b-3 under the Securities Exchange Act of 1934.

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June 12, 2026 Filed Jun 15, 2026 21:44 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 903.25 $880.19 $795,029.18
Disclosure

SEC source: 0001137789-26-000139 · wk-form4_1781559895.xml · nonDerivative · entry 2

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,860.25

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June 11, 2026 Filed Jun 15, 2026 21:44 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 1,695 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000139 · wk-form4_1781559895.xml · derivative · entry 3

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,475

Underlying: Ordinary Shares · 1,695 shares

Expires not disclosed

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

F1 · derivative.exercise_date: Consists of a grant of restricted share unit awarded to the reporting person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan. Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 11, 2024 and then in equal quarterly installments over the following three years for a total vesting period of four years.

F1 · derivative.expiration_date: Consists of a grant of restricted share unit awarded to the reporting person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan. Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 11, 2024 and then in equal quarterly installments over the following three years for a total vesting period of four years.

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June 11, 2026 Filed Jun 15, 2026 21:44 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 1,695 $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000139 · wk-form4_1781559895.xml · nonDerivative · entry 1

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,763.5

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

Read SEC document
June 10, 2026 Filed Jun 11, 2026 20:29 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 827 $821.77 $679,604.29
Disclosure

SEC source: 0001137789-26-000128 · wk-form4_1781209749.xml · nonDerivative · entry 4

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,068.5

Read SEC document
June 10, 2026 Filed Jun 11, 2026 20:29 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 523.5 $821.73 $430,176.07
Disclosure

SEC source: 0001137789-26-000128 · wk-form4_1781209749.xml · nonDerivative · entry 2

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,380.5

Read SEC document
June 09, 2026 Filed Jun 11, 2026 20:29 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 1,515 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000128 · wk-form4_1781209749.xml · derivative · entry 6

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,643

Underlying: Ordinary Shares · 1,515 shares

Expires not disclosed

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

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

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

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June 09, 2026 Filed Jun 11, 2026 20:29 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionRestricted Share Unit · Derivative 959 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000128 · wk-form4_1781209749.xml · derivative · entry 5

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 959

Underlying: Ordinary Shares · 959 shares

Expires not disclosed

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

F1 · derivative.exercise_date: Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). Subject to the Reporting Person's continuous employment, such RSUs vested as to one-quarter of the shares on September 9, 2023 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years.

F1 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). Subject to the Reporting Person's continuous employment, such RSUs vested as to one-quarter of the shares on September 9, 2023 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years.

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June 09, 2026 Filed Jun 11, 2026 20:29 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 1,515 $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000128 · wk-form4_1781209749.xml · nonDerivative · entry 3

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,895.5

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

Read SEC document
June 09, 2026 Filed Jun 11, 2026 20:29 UTC Seagate Technology Holdings plc STX · Entity 2029 Exercise / conversionOrdinary Shares 959 $0.00 $0.00
Disclosure

SEC source: 0001137789-26-000128 · wk-form4_1781209749.xml · nonDerivative · entry 1

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,904

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
May 07, 2026 Filed May 8, 2026 21:00 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 1,902 $770.00 $1,464,540.00
Disclosure

SEC source: 0001137789-26-000103 · wk-form4_1778274020.xml · nonDerivative · entry 1

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,945

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 November 26, 2025.

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May 06, 2026 Filed May 8, 2026 21:00 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 627 $786.84 $493,346.11
Disclosure

SEC source: 0001137789-26-000102 · wk-form4_1778274011.xml · nonDerivative · entry 30

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 42,847

F31 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $786.42 to $787.10. 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 06, 2026 Filed May 8, 2026 21:00 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 348 $785.99 $273,525.60
Disclosure

SEC source: 0001137789-26-000102 · wk-form4_1778274011.xml · nonDerivative · entry 29

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,474

F30 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $785.42 to $786.36. 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
May 06, 2026 Filed May 8, 2026 21:00 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 280 $784.68 $219,709.90
Disclosure

SEC source: 0001137789-26-000102 · wk-form4_1778274011.xml · nonDerivative · entry 28

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,822

F29 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $784.29 to $785.27. 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 06, 2026 Filed May 8, 2026 21:00 UTC Seagate Technology Holdings plc STX · Entity 2029 SaleOrdinary Shares 840 $783.83 $658,414.76
Disclosure

SEC source: 0001137789-26-000102 · wk-form4_1778274011.xml · nonDerivative · entry 27

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 44,102

F28 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $783.22 to $784.18. 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.

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