STX Seagate Technology Holdings PLC

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM SD

SPECIALIZED DISCLOSURE REPORT

Katherine E. Schuelke

Senior Vice President, Chief Legal Officer and Company Secretary

(510) 661-1975

(Name and telephone number, including area code, of the person to contact in connection with this report.)

Check the appropriate box to indicate the rule pursuant to which this form is being filed, and provide the period to which the information in this form applies:

Section 1 — Conflict Minerals Disclosure

Item 1.01 Conflict Minerals Disclosure and Report

This Specialized Disclosure Report on Form SD and the Conflict Minerals Report, filed as Exhibit 1.01 hereto, are publicly available at www.seagate.com/global-citizenship/.

Item 1.02 Exhibit

The Conflict Minerals Report of Seagate Technology public limited company (“Seagate”).

As a member of the Responsible Business Alliance, Seagate has been actively involved in conflict mineral supply chain remediation since 2010. Seagate’s conflict minerals policy is publicly posted at http://www.seagate.com/global-citizenship/.

Seagate’s products contain tin, tungsten, tantalum and gold (“3TG”) necessary to their functionality or production (as defined in Section 1, Item 1.01 (d)(3) of this Form SD). Seagate found no reasonable basis for concluding that any 3TG in its products directly or indirectly financed or benefitted armed groups, and thus believes the status of conflict minerals contained within its products is “DRC conflict free” (as defined in Section 1, Item 1.01(d)(4) of this Form SD) for calendar year 2019.

The website references contained in this Form SD are provided for convenience only, and their contents are not incorporated by reference into this Form SD and the Conflict Minerals Report nor deemed filed with the U.S. Securities and Exchange Commission.

Section 2 — Exhibits

Item 2.01 Exhibits

Exhibit 1.01 — Conflict Minerals Report as required by Items 1.01 and 1.02 of this Form.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the duly authorized undersigned.

Exhibit

Exhibit 1.01 — Conflict Minerals Report