STX

SEC source: 0001137789-24-000173 · wk-form4_1729635366.xml · nonDerivative · entry 1

Haggart Dylan G. · CIK 0001684185 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,469

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 · balance_after: The amount of securities beneficially owned by the reporting person has been updated solely to correct the total number of shares owned by removing 2,105 shares that were included in error on previous Form 4 filings.

SEC source: 0001137789-24-000172 · wk-form4_1729635353.xml · derivative · entry 4

CLEMMER RICHARD L · CIK 0001222781 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 4,271 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.

F4 · derivative.exercise_date: Consists of a grant of RSUs awarded to the Reporting Person on October 23, 2023 under the Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 28, 2024, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

F4 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person on October 23, 2023 under the Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 28, 2024, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-24-000172 · wk-form4_1729635353.xml · derivative · entry 3

CLEMMER RICHARD L · CIK 0001222781 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,693

Underlying: Ordinary Shares · 2,693 shares

Expires not disclosed

F3 · derivative.exercise_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 19, 2024 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

F3 · derivative.expiration_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 19, 2024 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-24-000172 · wk-form4_1729635353.xml · nonDerivative · entry 1

CLEMMER RICHARD L · CIK 0001222781 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,658

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 · balance_after: The amount of securities beneficially owned has been updated to reflect 9,102 shares held continuously by the reporting person since prior to becoming a director for the Company, but not previously reported due to an administrative oversight.

SEC source: 0001137789-24-000169 · wk-form4_1729635319.xml · derivative · entry 3

Tilenius Stephanie · CIK 0001534995 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Oridnary Shares · 4,271 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 on October 23, 2023 under the Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 28, 2024, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

F2 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person on October 23, 2023 under the Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 28, 2024, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-24-000169 · wk-form4_1729635319.xml · derivative · entry 2

Tilenius Stephanie · CIK 0001534995 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,693

Underlying: Ordinary Shares · 2,693 shares

Expires not disclosed

F1 · derivative.exercise_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 19, 2024 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

F1 · derivative.expiration_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 19, 2024 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-24-000169 · wk-form4_1729635319.xml · nonDerivative · entry 1

Tilenius Stephanie · CIK 0001534995 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,937

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.

SEC source: 0001137789-24-000170 · wk-form4_1729635331.xml · derivative · entry 3

BHATT PRAT · CIK 0001469167 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Oridnary Shares · 4,271 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 on October 23, 2023 under the Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 28, 2024, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

F2 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person on October 23, 2023 under the Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 28, 2024, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-24-000170 · wk-form4_1729635331.xml · derivative · entry 2

BHATT PRAT · CIK 0001469167 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,693

Underlying: Ordinary Shares · 2,693 shares

Expires not disclosed

F1 · derivative.exercise_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 19, 2024 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

F1 · derivative.expiration_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 19, 2024 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-24-000170 · wk-form4_1729635331.xml · nonDerivative · entry 1

BHATT PRAT · CIK 0001469167 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,823

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.

SEC source: 0001137789-24-000168 · wk-form4_1729635308.xml · derivative · entry 4

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 5,436 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 on October 23, 2023 under the Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 28, 2024, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

F2 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person on October 23, 2023 under the Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 28, 2024, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-24-000168 · wk-form4_1729635308.xml · derivative · entry 3

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,427

Underlying: Ordinary Shares · 3,427 shares

Expires not disclosed

F1 · derivative.exercise_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 19, 2024 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

F1 · derivative.expiration_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 19, 2024 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-24-000168 · wk-form4_1729635308.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,025

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.

SEC source: 0001137789-24-000167 · wk-form4_1729635297.xml · derivative · entry 3

Conyers Yolanda Lee · CIK 0001906375 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 4,271 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 on October 23, 2023 under the Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 28, 2024, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

F2 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person on October 23, 2023 under the Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 28, 2024, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-24-000167 · wk-form4_1729635297.xml · derivative · entry 2

Conyers Yolanda Lee · CIK 0001906375 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,693

Underlying: Ordinary Shares · 2,693 shares

Expires not disclosed

F1 · derivative.exercise_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 19, 2024 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

F1 · derivative.expiration_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 19, 2024 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-24-000167 · wk-form4_1729635297.xml · nonDerivative · entry 1

Conyers Yolanda Lee · CIK 0001906375 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,305

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.

SEC source: 0001137789-24-000166 · wk-form4_1729635287.xml · derivative · entry 3

Geldmacher Jay L · CIK 0001462488 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 4,271 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 on October 23, 2023 under the Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 28, 2024, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

F2 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person on October 23, 2023 under the Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 28, 2024, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-24-000166 · wk-form4_1729635287.xml · derivative · entry 2

Geldmacher Jay L · CIK 0001462488 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,693

Underlying: Ordinary Shares · 2,693 shares

Expires not disclosed

F1 · derivative.exercise_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 19, 2024 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

F1 · derivative.expiration_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 19, 2024 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-24-000166 · wk-form4_1729635287.xml · nonDerivative · entry 1

Geldmacher Jay L · CIK 0001462488 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,952

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.

SEC source: 0001137789-24-000165 · wk-form4_1729635276.xml · derivative · entry 5

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 3,524 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: On October 19, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 3,524 of the 7,540 Performance Share Units granted on September 9, 2021. The 3,524 Ordinary Shares vested on October 19, 2024.

F3 · derivative.expiration_date: On October 19, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 3,524 of the 7,540 Performance Share Units granted on September 9, 2021. The 3,524 Ordinary Shares vested on October 19, 2024.

SEC source: 0001137789-24-000165 · wk-form4_1729635276.xml · derivative · entry 4

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,524

Underlying: Ordinary Shares · 3,524 shares

Expires not disclosed

F3 · derivative.exercise_date: On October 19, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 3,524 of the 7,540 Performance Share Units granted on September 9, 2021. The 3,524 Ordinary Shares vested on October 19, 2024.

F3 · derivative.expiration_date: On October 19, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 3,524 of the 7,540 Performance Share Units granted on September 9, 2021. The 3,524 Ordinary Shares vested on October 19, 2024.

SEC source: 0001137789-24-000165 · wk-form4_1729635276.xml · nonDerivative · entry 2

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,322

F1 · shares: These Ordinary Shares are withheld securities to cover tax liabilities incident to the vesting of Performance Share Units in accordance with Rule 16b-3.

SEC source: 0001137789-24-000165 · wk-form4_1729635276.xml · nonDerivative · entry 1

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,929

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.

SEC source: 0001137789-24-000164 · wk-form4_1729635266.xml · derivative · entry 4

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 9,398 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: On October 19, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 9,398 of the 20,110 Performance Share Units granted on September 9, 2021. The 9,398 Ordinary Shares vested on October 19, 2024.

F2 · derivative.expiration_date: On October 19, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 9,398 of the 20,110 Performance Share Units granted on September 9, 2021. The 9,398 Ordinary Shares vested on October 19, 2024.

SEC source: 0001137789-24-000164 · wk-form4_1729635266.xml · derivative · entry 3

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,398

Underlying: Ordinary Shares · 9,398 shares

Expires not disclosed

F2 · derivative.exercise_date: On October 19, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 9,398 of the 20,110 Performance Share Units granted on September 9, 2021. The 9,398 Ordinary Shares vested on October 19, 2024.

F2 · derivative.expiration_date: On October 19, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 9,398 of the 20,110 Performance Share Units granted on September 9, 2021. The 9,398 Ordinary Shares vested on October 19, 2024.

SEC source: 0001137789-24-000164 · wk-form4_1729635266.xml · nonDerivative · entry 2

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,963

F1 · shares: These Ordinary Shares are withheld securities to cover tax liabilities incident to the vesting of Performance Share Units in accordance with Rule 16b-3.

SEC source: 0001137789-24-000164 · wk-form4_1729635266.xml · nonDerivative · entry 1

Romano Gianluca · CIK 0001764650 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,712

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.

SEC source: 0001137789-24-000163 · wk-form4_1729635255.xml · derivative · entry 2

BRUGGEWORTH ROBERT A · CIK 0001140842 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 4,271 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 units RSUs awarded to the Reporting Person on October 23, 2023 under the Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 28, 2024, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

F1 · derivative.expiration_date: Consists of a grant of restricted share units RSUs awarded to the Reporting Person on October 23, 2023 under the Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 28, 2024, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-24-000163 · wk-form4_1729635255.xml · nonDerivative · entry 1

BRUGGEWORTH ROBERT A · CIK 0001140842 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,591

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.

SEC source: 0001137789-24-000162 · wk-form4_1729635244.xml · derivative · entry 3

Arumugavelu Shankar · CIK 0001854908 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 4,271 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 on October 23, 2023 under the Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 28, 2024, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

F2 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person on October 23, 2023 under the Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 28, 2024, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-24-000162 · wk-form4_1729635244.xml · derivative · entry 2

Arumugavelu Shankar · CIK 0001854908 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,693

Underlying: Ordinary Shares · 2,693 shares

Expires not disclosed

F1 · derivative.exercise_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 19, 2024 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

F1 · derivative.expiration_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 19, 2024 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-24-000162 · wk-form4_1729635244.xml · nonDerivative · entry 1

Arumugavelu Shankar · CIK 0001854908 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,580

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.

SEC source: 0001137789-24-000161 · wk-form4_1729635234.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 · 4,386 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 October 19, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 4,386 of the 9,385 Performance Share Units granted on September 9, 2021. The 4,386 Ordinary Shares vested on October 19, 2024.

F1 · derivative.expiration_date: On October 19, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 4,386 of the 9,385 Performance Share Units granted on September 9, 2021. The 4,386 Ordinary Shares vested on October 19, 2024.

SEC source: 0001137789-24-000161 · wk-form4_1729635234.xml · derivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,386

Underlying: Ordinary Shares · 4,386 shares

Expires not disclosed

F1 · derivative.exercise_date: On October 19, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 4,386 of the 9,385 Performance Share Units granted on September 9, 2021. The 4,386 Ordinary Shares vested on October 19, 2024.

F1 · derivative.expiration_date: On October 19, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 4,386 of the 9,385 Performance Share Units granted on September 9, 2021. The 4,386 Ordinary Shares vested on October 19, 2024.

SEC source: 0001137789-24-000161 · wk-form4_1729635234.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,355

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.

SEC source: 0001137789-24-000160 · wk-form4_1729635222.xml · derivative · entry 1

Adams Mark · CIK 0001349123 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,693

Underlying: Ordinary Shares · 2,693 shares

Expires not disclosed

F1 · derivative.exercise_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 19, 2024 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

F1 · derivative.expiration_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 19, 2024 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "Plan") for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-24-000159 · wk-form4_1729635213.xml · derivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 28,060 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: On October 19, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 28,060 of the 60,045 Performance Share Units granted on September 9, 2021. The 28,060 Ordinary Shares vested on October 19, 2024.

F2 · derivative.expiration_date: On October 19, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 28,060 of the 60,045 Performance Share Units granted on September 9, 2021. The 28,060 Ordinary Shares vested on October 19, 2024.

SEC source: 0001137789-24-000159 · wk-form4_1729635213.xml · derivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,060

Underlying: Ordinary Shares · 28,060 shares

Expires not disclosed

F2 · derivative.exercise_date: On October 19, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 28,060 of the 60,045 Performance Share Units granted on September 9, 2021. The 28,060 Ordinary Shares vested on October 19, 2024.

F2 · derivative.expiration_date: On October 19, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 28,060 of the 60,045 Performance Share Units granted on September 9, 2021. The 28,060 Ordinary Shares vested on October 19, 2024.

SEC source: 0001137789-24-000159 · wk-form4_1729635213.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 662,497

F1 · shares: These Ordinary Shares are withheld securities to cover tax liabilities incident to the vesting of Performance Share Units in accordance with Rule 16b-3.

SEC source: 0001137789-24-000159 · wk-form4_1729635213.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 676,676

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.

SEC source: 0001137789-24-000129 · wk-form4_1727901712.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 648,616

F4 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $108.62 to $108.69. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001137789-24-000129 · wk-form4_1727901712.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 648,716

F3 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $107.62 to $108.60. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001137789-24-000129 · wk-form4_1727901712.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 661,545

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

F2 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $106.62 to $107.61. 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.

SEC source: 0001137789-24-000127 · wk-form4_1727468637.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,969

F1 · shares: These Ordinary Shares were sold under a Rule 10b5-1 trading plan adopted on January 29, 2024 by the Reporting Person.

SEC source: 0001137789-24-000126 · wk-form4_1727468626.xml · derivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 141,785 shares

Expires 2025-09-10

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 Issuer's 2012 Equity Incentive Plan are subject to a four-year vesting schedule. One quarter of the options vested on September 10, 2019. The remaining options vested in equal monthly installments over the 36 months following September 10, 2019.

SEC source: 0001137789-24-000126 · wk-form4_1727468626.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 668,616

F1 · 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 on May 6, 2024 by the Reporting Person.

F2 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $110.00 to $110.43. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001137789-24-000126 · wk-form4_1727468626.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 810,401

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.

SEC source: 0001137789-24-000122 · wk-form4_1726604706.xml · nonDerivative · entry 1

Morris John Christopher · CIK 0001988271 · SVP & CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,405

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

SEC source: 0001137789-24-000123 · wk-form4_1726604716.xml · derivative · entry 2

Chong Kian Fatt · CIK 0001987421 · SVP, Global Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 1,422 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 September 14, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 1,422 of the 3,195 Performance Share Units granted to Mr. Chong on September 9, 2021. The 1,422 Ordinary Shares vested on September 14, 2024.

F1 · derivative.expiration_date: On September 14, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 1,422 of the 3,195 Performance Share Units granted to Mr. Chong on September 9, 2021. The 1,422 Ordinary Shares vested on September 14, 2024.

SEC source: 0001137789-24-000123 · wk-form4_1726604716.xml · nonDerivative · entry 1

Chong Kian Fatt · CIK 0001987421 · SVP, Global Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,182

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.