UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934 (Amendment No.

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☐	Preliminary Proxy Statement
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☐	Definitive Proxy Statement
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☐	Soliciting Material under §240.14a-12

Seagate Technology Holdings public limited company

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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Notice of Annual General Meeting of Shareholders and Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on October 24, 2022. SEAGATE TECHNOLOGY HOLDINGS PLC 38/39 FITZWILLIAM SQUARE DUBLIN 2, D02 NX53, IRELAND D90437-P76961 Your Vote Counts! SEAGATE TECHNOLOGY HOLDINGS PUBLIC LIMITED COMPANY 2022 Annual General Meeting Vote by October 23, 2022 6:59 PM ET (11:59 PM Irish Standard Time) YOU ARE RECEIVING THIS COMMUNICATION BECAUSE YOU HELD SHARES IN SEAGATE TECHNOLOGY HOLDINGS PLC AS OF CLOSE OF BUSINESS ON AUGUST 26, 2022. You have the right to vote on proposals being presented at the Annual General Meeting. This is not a ballot or proxy card. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. Get informed before you vote View the Notice, Proxy Statement, Form 10-K and Irish Statutory Financial Statements online OR you can receive a free paper or email copy of the material(s) by requesting prior to October 10, 2022 to facilitate timely delivery. If you would like to request a copy of the material(s) for this and/or future shareholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor or broker. For complete information and to vote, visit www.ProxyVote.com Control # Smartphone users Point your camera here and vote without entering a control number Vote in Person at the Meeting* October 24, 2022 5:00 PM Irish Standard Time InterContinental Hotel Simmonscourt Road Dublin 4 D04 A9K8, Ireland *Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares. V1.1

Vote at www.ProxyVote.com THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming shareholder meeting. Please follow the instructions on the reverse side to vote these important matters. Voting Items Board Recommends 1. Election of Directors Nominees: 1a. Shankar Arumugavelu For 1b. Prat S. Bhatt For 1c. Judy Bruner For 1d. Michael R. Cannon For 1e. Richard L. Clemmer For 1f. Yolanda L. Conyers For 1g. Jay L. Geldmacher For 1h. Dylan Haggart For 1i. William D. Mosley For 1j. Stephanie Tilenius For 1k. Edward J. Zander For 2. Approve, in an Advisory, Non-binding Vote, the Compensation of the Company’s Named Executive Officers (“Say-on-Pay”). For 3. A Non-binding Rati?cation of the Appointment of Ernst & Young LLP as the Independent Auditors for the Fiscal Year For Ending June 30, 2023 and Binding Authorization of the Audit and Finance Committee to Set Auditors’ Remuneration. 4. Determine the Price Range for the Re-allotment of Treasury Shares. For In their discretion, the proxies are authorized to vote on such other business as may properly come before the meeting and any adjournment or postponement of the meeting. You may appoint a proxy or proxies to attend, speak and vote on your behalf at the Annual General Meeting. A proxy need not be a shareholder. If you wish to appoint a person other than the individuals specified on the proxy card, please contact the Company Secretary at the Company’s registered office or deliver to the Company Secretary a proxy card in the form set out in section 184 of the Irish Companies Act 2014. Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Sign up for E-delivery”.