CANNON MICHAEL R

SEC source: 0001201489-25-000005 · wk-form4_1762798186.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 191,375

F1 · balance_after: The amount reported includes shares subject to unvested restricted stock units.

SEC source: 0001137789-25-000301 · wk-form4_1761683357.xml · derivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,868

Underlying: Ordinary Shares · 1,868 shares

Expires not disclosed

F1 · derivative.exercise_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 25, 2025 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 July 3, 2026, 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 25, 2025 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 July 3, 2026, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-25-000273 · wk-form4_1761077079.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 · 3,427 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 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 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: 0001137789-25-000273 · wk-form4_1761077079.xml · nonDerivative · entry 2

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,439

SEC source: 0001137789-25-000273 · wk-form4_1761077079.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,262

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

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,835

SEC source: 0000707549-24-000144 · wk-form4_1731428572.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 189,740

F1 · balance_after: The amount reported includes shares subject to unvested restricted stock units.

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: 0000707549-23-000138 · wk-form4_1699897802.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,679

F1 · balance_after: The amount reported includes shares subject to unvested restricted stock units.

SEC source: 0001137789-23-000121 · wk-form4_1698187364.xml · derivative · entry 5

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,436

Underlying: Ordinary Shares · 5,436 shares

Expires not disclosed

F3 · derivative.exercise_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive 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.

F3 · derivative.expiration_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive 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: 0001137789-23-000121 · wk-form4_1698187364.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 · 4,840 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: Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. The award vested one year from the date of grant following the end of the fiscal year ending June 30, 2023.

F2 · derivative.expiration_date: Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. The award vested one year from the date of grant following the end of the fiscal year ending June 30, 2023.

SEC source: 0001137789-23-000121 · wk-form4_1698187364.xml · nonDerivative · entry 2

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,589

F1 · shares: These Ordinary Shares are withheld securities to cover tax liabilities incident to the vesting of Restricted Share Units ("RSUs").

SEC source: 0001137789-23-000121 · wk-form4_1698187364.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,332

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: 0000707549-22-000136 · wf-form4_166845343782008.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,310

F1 · balance_after: The amount reported includes shares subject to unvested restricted stock units.

SEC source: 0001137789-22-000106 · wf-form4_166665416065372.xml · derivative · entry 5

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,840

Underlying: Ordinary Shares · 4,840 shares

Expires not disclosed

F3 · derivative.exercise_date: Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive 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 30, 2023, 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 under the Seagate Technology Holdings plc 2022 Equity Incentive 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 30, 2023, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-22-000106 · wf-form4_166665416065372.xml · derivative · entry 4

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 4,024 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: Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. The award vested one year from the date of grant following the end of the fiscal year ending July 1, 2022.

F2 · derivative.expiration_date: Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. The award vested one year from the date of grant following the end of the fiscal year ending July 1, 2022.

SEC source: 0001137789-22-000106 · wf-form4_166665416065372.xml · nonDerivative · entry 2

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,492

F1 · shares: These Ordinary Shares are withheld securities to cover tax liabilities incident to the vesting of Restricted Share Units ("RSUs").

SEC source: 0001137789-22-000106 · wf-form4_166665416065372.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,941

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: 0000707549-21-000179 · wf-form4_163709519584561.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,747

F1 · balance_after: The amount reported includes shares subject to unvested restricted stock units.

SEC source: 0001137789-21-000115 · wf-form4_163494723864334.xml · derivative · entry 5

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,024

Underlying: Ordinary Shares · 4,024 shares

Expires not disclosed

F3 · derivative.exercise_date: Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive 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 the shareholders of the Issuer following the end of the fiscal year ending on July 1, 2022 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 RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive 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 the shareholders of the Issuer following the end of the fiscal year ending on July 1, 2022 provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.

SEC source: 0001137789-21-000115 · wf-form4_163494723864334.xml · derivative · entry 4

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 5,847 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: Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. The award vested on the date of the annual general meeting of the shareholders of the Issuer following the end of the fiscal year ending July 2, 2021.

F2 · derivative.expiration_date: Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. The award vested on the date of the annual general meeting of the shareholders of the Issuer following the end of the fiscal year ending July 2, 2021.

SEC source: 0001137789-21-000115 · wf-form4_163494723864334.xml · nonDerivative · entry 2

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,917

F1 · shares: These Ordinary Shares are withheld securities to cover tax liabilities incident to the vesting of Restricted Share Units ("RSUs").

SEC source: 0001137789-21-000115 · wf-form4_163494723864334.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,022

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: 0001137789-21-000035 · wf-form4_162371820583039.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,175

F1 · price: These Ordinary Shares were sold in multiple trades at prices ranging from $97.45 to $97.485. 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: 0000707549-20-000197 · wf-form4_160503972638238.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,370

F1 · balance_after: The amount reported includes shares subject to unvested Restricted Stock Units.

SEC source: 0001137789-20-000112 · wf-form4_160349453179818.xml · derivative · entry 5

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,847

Underlying: Ordinary Shares · 5,847 shares

Expires not disclosed

F3 · derivative.exercise_date: Consists of a grant of RSUs awarded to the Reporting Person under the Amended and Restated Seagate Technology plc 2012 Equity Incentive 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 which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

F3 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person under the Amended and Restated Seagate Technology plc 2012 Equity Incentive 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 which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001137789-20-000112 · wf-form4_160349453179818.xml · derivative · entry 4

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 5,579 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: Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. The award vested on the date prior to the annual general meeting of the shareholders of the Issuer following the end of the Issuer's fiscal year ended July 3, 2020.

F2 · derivative.expiration_date: Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. The award vested on the date prior to the annual general meeting of the shareholders of the Issuer following the end of the Issuer's fiscal year ended July 3, 2020.

SEC source: 0001137789-20-000112 · wf-form4_160349453179818.xml · nonDerivative · entry 2

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,277

F1 · shares: These Ordinary Shares are withheld securities to cover tax liabilities incident to the vesting of Restricted Share Units ("RSUs").

SEC source: 0001137789-20-000112 · wf-form4_160349453179818.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,286

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: 0000707549-19-000190 · wf-form4_157359363532757.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,860

F1 · balance_after: Amount reported includes shares subject to unvested Restricted Stock Units.

SEC source: 0001137789-19-000087 · wf-form4_157248119566977.xml · derivative · entry 5

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,579

Underlying: Ordinary Shares · 5,579 shares

Expires not disclosed

F3 · derivative.exercise_date: Consists of a grant of RSUs awarded to the Reporting Person under the Amended and Restated Seagate Technology plc 2012 Equity Incentive 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) one day prior to the next election of directors following the date of grant.

F3 · derivative.expiration_date: Consists of a grant of RSUs awarded to the Reporting Person under the Amended and Restated Seagate Technology plc 2012 Equity Incentive 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) one day prior to the next election of directors following the date of grant.

SEC source: 0001137789-19-000087 · wf-form4_157248119566977.xml · derivative · entry 4

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 5,146 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: Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. The award vested on the date prior to the annual general meeting of the shareholders of the Issuer following the end of the Issuer's fiscal year ended June 28, 2019.

F2 · derivative.expiration_date: Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. The award vested on the date prior to the annual general meeting of the shareholders of the Issuer following the end of the Issuer's fiscal year ended June 28, 2019.

SEC source: 0001137789-19-000087 · wf-form4_157248119566977.xml · nonDerivative · entry 2

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,707

F1 · shares: These Ordinary Shares are withheld securities to cover tax liabilities incident to the vesting of Restricted Share Units ("RSUs").

SEC source: 0001137789-19-000087 · wf-form4_157248119566977.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,560

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: 0000707549-18-000144 · wf-form4_154212804723516.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,090

F1 · balance_after: Amount reported includes shares subject to unvested Restricted Stock Units.

SEC source: 0001137789-18-000099 · wf-form4_154102222830867.xml · derivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,146

Underlying: Ordinary Shares · 5,146 shares

Expires not disclosed

F1 · derivative.exercise_date: Consists of a grant of restricted share units awarded to the Reporting Person under the Amended and Restated Seagate Technology plc 2012 Equity Incentive Plan for no consideration. Each restricted share unit 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) one day prior to the next annual general meeting of the shareholders of the Issuer following the end of the fiscal year ending on June 28, 2019.

F1 · derivative.expiration_date: Consists of a grant of restricted share units awarded to the Reporting Person under the Amended and Restated Seagate Technology plc 2012 Equity Incentive Plan for no consideration. Each restricted share unit 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) one day prior to the next annual general meeting of the shareholders of the Issuer following the end of the fiscal year ending on June 28, 2019.

SEC source: 0001137789-18-000080 · wf-form4_154024361858463.xml · derivative · entry 4

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 8,094 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: Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. This award vested one year from the date of grant.

F2 · derivative.expiration_date: Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. This award vested one year from the date of grant.

SEC source: 0001137789-18-000080 · wf-form4_154024361858463.xml · nonDerivative · entry 2

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,414

F1 · shares: These Ordinary Shares are withheld securities to cover tax liabilities incident to the vesting of Restricted Share Units ("RSUs").

SEC source: 0001137789-18-000080 · wf-form4_154024361858463.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,328

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: 0000707549-17-000164 · wf-form4_151094326402370.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,740

F1 · price: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $212.13 to $213.06, inclusive.

F2 · balance_after: Amount reported includes shares subject to unvested Restricted Stock Units.

SEC source: 0000707549-17-000148 · wf-form4_151062057903852.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,740

F1 · balance_after: Amount reported includes shares subject to unvested Restricted Stock Units.

SEC source: 0001137789-17-000071 · wf-form4_150845440737269.xml · derivative · entry 3

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,094

Underlying: Ordinary Shares · 8,094 shares

Expires not disclosed

F2 · derivative.exercise_date: Consists of a grant of restricted share units awarded to the Reporting Person under the Amended and Restated Seagate Technology plc 2012 Equity Incentive Plan for no consideration. Each restricted share unit 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) one day prior to the next annual general meeting of the shareholders of the Issuer following the end of the fiscal year ending on June 29, 2018.

F2 · derivative.expiration_date: Consists of a grant of restricted share units awarded to the Reporting Person under the Amended and Restated Seagate Technology plc 2012 Equity Incentive Plan for no consideration. Each restricted share unit 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) one day prior to the next annual general meeting of the shareholders of the Issuer following the end of the fiscal year ending on June 29, 2018.

SEC source: 0001137789-17-000071 · wf-form4_150845440737269.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,234

F1 · shares: These Ordinary Shares are withheld securities to cover tax liabilities incident to the vesting of securities previously reported on one or more Forms 4 by the Reporting Person in accordance with Rule 16b-3.

SEC source: 0000707549-16-000095 · wf-form4_147924315376361.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,780

F1 · balance_after: Amount reported includes shares subject to unvested Restricted Stock Units.

SEC source: 0001137789-16-000066 · wf-form4_147699434232872.xml · nonDerivative · entry 2

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,272

F2 · shares: Consists of a grant of restricted share units awarded to the Reporting Person under the Amended and Restated Seagate Technology plc 2012 Equity Incentive Plan for no consideration. Each restricted share unit 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) one day prior to the next annual general meeting of the shareholders of the Issuer following the end of the fiscal year ending with June 30, 2016.

SEC source: 0001137789-16-000066 · wf-form4_147699434232872.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,835

F1 · shares: These Ordinary Shares are withheld securities to cover tax liabilities incident to the vesting of securities previously reported on one or more Forms 4 by the Reporting Person in accordance with Rule 16b-3.

SEC source: 0001631209-15-000004 · primary_doc.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,730

F1 · balance_after: Amount reported includes share subject to unvested Restricted Stock Units.

SEC source: 0001192381-14-000039 · primary_doc.xml · nonDerivative · entry 1

CANNON MICHAEL R · CIK 0001201489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,130

F1 · balance_after: Amount reported includes shares subject to unvested Restricted Stock Units.