STX Seagate Technology Holdings PLC

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 29, 2016

SEAGATE TECHNOLOGY PUBLIC LIMITED COMPANY

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (353) (1) 234-3136

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

Item 2.02 Results of Operations and Financial Condition.

On January 29, 2016, Seagate Technology plc (the “Company”) issued a press release reporting its financial results for the fiscal quarter and six months ended January 1, 2016. The press release is attached to this Current Report on Form 8-K as Exhibit 99.1.

As provided in General Instruction B.2 of Form 8-K, the information in this Item 2.02 and the exhibit hereto are “furnished” and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of such section.

Item 7.01 Regulation FD Disclosure.

The Company also announced that its Board of Directors has approved a quarterly cash dividend of $0.63 per share. The dividend of $0.63 per share was declared by the Board on January 29, 2016 and is payable on February 23, 2016, to shareholders of record at the close of business on February 9, 2016. The press release is attached to this Current Report on Form 8-K as Exhibit 99.1.

Seagate has issued a Supplemental Financial Information document. The Supplemental Financial Information is available on Seagate’s Investors website at www.seagate.com/investors. Seagate management will hold a public webcast today at 6:00 a.m. Pacific Time that can be accessed on its Investors website at www.seagate.com/investors.  During today’s webcast, the Company will provide an outlook for its third fiscal quarter of 2016 including key underlying assumptions.  A replay will be available beginning today at approximately 9:00 a.m. Pacific Time at www.seagate.com/investors. Investors and others should note that the Company routinely uses the Investors section of its corporate website to announce material information to investors and the marketplace. While not all of the information that the Company posts on its corporate website is of a material nature, some information could be deemed to be material. Accordingly, the Company encourages investors, the media, and others interested in the Company to review the information that it shares on www.seagate.com.

As provided in General Instruction B.2 of Form 8-K, the information in this Item 7.01 is “furnished” and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of such section.

Item 9.01                   Financial Statements and Exhibits.

(d) Exhibits.

The following exhibits are attached to this Current Report on Form 8-K:

Cautionary Note Regarding Forward-Looking Statements

This report contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, each as amended, including, in particular, statements about our plans, strategies and prospects and estimates of industry growth for the fiscal quarter April 1, 2016 and beyond as well as our plans with respect to future dividend payments. These statements identify prospective information and may include words such as “expects,” “intends,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “projects” and similar expressions. These forward-looking statements are based on information available to the Company as of the date of this report and are based on management’s current views and assumptions. These forward-looking statements are conditioned upon and also involve a number of known and unknown risks, uncertainties, and other factors that could cause actual results, performance or events to differ materially from those anticipated by these forward-looking statements. Such risks, uncertainties, and other factors may be beyond the Company’s control and may pose a risk to the Company’s operating and financial condition. Such risks and uncertainties include, but are not limited to: the uncertainty in global economic

2

conditions; the impact of the variable demand and adverse pricing environment for disk drives, particularly in view of current business and economic conditions; the Company’s ability to successfully qualify, manufacture and sell its disk drive products in increasing volumes on a cost-effective basis and with acceptable quality, particularly the new disk drive products with lower cost structures; the impact of competitive product announcements; currency fluctuations that may impact the Company’s margins and international sales; possible excess industry supply with respect to particular disk drive products; disruptions to our supply chain or production capabilities; unexpected advances in competing technologies; the development and introduction of products based on new technologies and expansion into new data storage markets; and the Company’s ability to achieve projected cost savings in connection with restructuring plans and fluctuations in interest rates. Information concerning risks, uncertainties and other factors that could cause results to differ materially from the expectations described in this report is contained in the Company’s Annual Report on Form 10-K filed with the U.S. Securities and Exchange Commission on August 11, 2015, the “Risk Factors” section of which is incorporated into this report by reference, and other documents filed with or furnished to the Securities and Exchange Commission. These forward-looking statements should not be relied upon as representing the Company’s views as of any subsequent date and the Company undertakes no obligation to update forward-looking statements to reflect events or circumstances after the date they were made.

The inclusion of Seagate’s website address in this report is intended to be an inactive textual reference only and not an active hyperlink. The information contained in, or that can be accessed through, Seagate’s website is not part of this report.

3

SIGNATURE

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 undersigned, hereunto duly authorized.

Date: January 29, 2016

4

Exhibit 99.1

Press Release

Media Relations Contact:

Eric DeRitis (408) 658-1561

eric.deritis@seagate.com

SEAGATE

SEAGATE TECHNOLOGY REPORTS FISCAL SECOND QUARTER 2016 FINANCIAL RESULTS

CUPERTINO, CA — January 29, 2016 — Seagate Technology plc (NASDAQ: STX) (the “Company” or “Seagate”) today reported financial results for the second quarter of fiscal year 2016 ended January 1, 2016.  For the second quarter, the Company reported revenue of approximately $3.0 billion, gross margin of 24.8%, net income of $165 million and diluted earnings per share of $0.55. On a non-GAAP basis, which excludes the net impact of certain items, Seagate reported gross margin of 25.6%, net income of $246 million and diluted earnings per share of $0.82. For a detailed reconciliation of GAAP to non-GAAP results, see the accompanying financial tables.

During the second quarter, the Company generated approximately $382 million in operating cash flow, paid cash dividends of $188 million and repurchased approximately 2.9 million ordinary shares for $107 million. There were 296 million ordinary shares issued and outstanding as of the end of the quarter.  Cash, cash equivalents and short-term investments totaled approximately $1.3 billion at the end of the quarter.

“Our results this quarter reflect the achievement of many of our operational goals, including improved profitability in our product portfolio and effective cost controls,” said Steve Luczo, Seagate’s chairman and chief executive officer.  “Seagate sits in a favorable position as a leading storage solutions provider and we continue to believe that the long-term prospects for storage growth are strong.  We are confident we have the right strategy and portfolio to continue delivering market-leading value to customers and generating strong returns for our investors through financial discipline.”

Seagate has issued a Supplemental Financial Information document, which is available on Seagate’s Investors website at www.seagate.com/investors.

Quarterly Cash Dividend

The Company’s Board has approved a quarterly cash dividend of $0.63 per share, which will be payable on February 23, 2016 to shareholders of record as of the close of business on February 9, 2016.  The payment of any future quarterly dividends will be at the discretion of the Board and will be dependent upon Seagate’s financial position, results of operations, available cash, cash flow, capital requirements and other factors deemed relevant by the Board.

Investor Communications

Seagate management will hold a public webcast today at 6:00 a.m. Pacific Time that can be accessed on its Investors website at www.seagate.com/investors.  During today’s webcast, the Company will provide an outlook for its third fiscal quarter of 2016 including key underlying assumptions.

Replay

A replay will be available beginning today at approximately 9:00 a.m. Pacific Time at http://www.seagate.com/investors.

About Seagate

To learn more about the company’s products and services, visit www.seagate.com and follow us on Twitter, Facebook, LinkedIn, Spiceworks, YouTube and subscribe to our blog.  The contents of our website and social media channels are not a part of this release.

Cautionary Note Regarding Forward-Looking Statements

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, each as amended, including, in particular, statements about our plans, strategies and prospects and estimates of industry growth for the fiscal quarter ending April 1, 2016 and the fiscal year ending July 1, 2016 and beyond as well as our plans with respect to future dividend payments. These statements identify prospective information and may include words such as “expects,” “intends,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “projects” and similar expressions. These forward-looking statements are based on information available to the Company as of the date of this press release and are based on management’s current views and assumptions. These forward-looking statements are conditioned upon and also involve a number of known and unknown risks, uncertainties, and other factors that could cause actual results, performance or events to differ materially from those anticipated by these forward-looking statements. Such risks, uncertainties, and other factors may be beyond the Company’s control and may pose a risk to the Company’s operating and financial condition. Such risks and uncertainties include, but are not limited to: the uncertainty in global economic conditions; the impact of the variable demand and adverse pricing environment for disk drives, particularly in view of current business and economic conditions; the Company’s ability to successfully qualify, manufacture and sell its disk drive products in increasing volumes on a cost-effective basis and with acceptable quality, particularly the new disk drive products with lower cost structures; the impact of competitive product announcements; currency fluctuations that may impact the Company’s margins and international sales; possible excess industry supply with respect to particular disk drive products; disruptions to our supply chain or production capabilities; unexpected advances in competing technologies; the development and introduction of products based on new technologies and expansion into new data storage markets; and the Company’s ability to achieve projected cost savings in connection with restructuring plans and fluctuations in interest rates. Information concerning risks, uncertainties and other factors that could cause results to differ materially from the expectations described in this press release is contained in the Company’s Annual Report on Form 10-K filed with the U.S. Securities and Exchange Commission on August 11, 2015, the “Risk Factors” section of which is incorporated into this press release by reference, and other documents filed with or furnished to the Securities and Exchange Commission. These forward-looking statements should not be relied upon as representing the Company’s views as of any subsequent date and the Company undertakes no obligation to update forward-looking statements to reflect events or circumstances after the date they were made.

The inclusion of Seagate’s website address in this press release is intended to be an inactive textual reference only and not an active hyperlink. The information contained in, or that can be accessed through, Seagate’s website is not part of this press release.

SEAGATE TECHNOLOGY PLC

CONDENSED CONSOLIDATED BALANCE SHEETS

(In millions)

(Unaudited)

(a) The information as of July 3, 2015 was derived from the Company’s audited Consolidated Balance Sheet as of July 3, 2015.

SEAGATE TECHNOLOGY PLC

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(In millions, except per share data)

(Unaudited)

SEAGATE TECHNOLOGY PLC

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In millions)

(Unaudited)

Use of non-GAAP financial information

To supplement the condensed consolidated financial statements presented in accordance with generally accepted accounting principles (GAAP), the Company provides non-GAAP measures of net income, diluted net income per share, gross margin, gross margin as a percentage of revenue, operating margin, operating expenses, and operating income which are adjusted from results based on GAAP to exclude certain expenses, gains and losses. These non-GAAP financial measures are provided to enhance the user’s overall understanding of the Company’s current financial performance and our prospects for the future. Specifically, the Company believes non-GAAP results provide useful information to both management and investors as these non-GAAP results exclude certain expenses, gains and losses that we believe are not indicative of our core operating results and because it is consistent with the financial models and estimates published by financial analysts who follow the Company.

These non-GAAP results are some of the primary measurements management uses to assess the Company’s performance, allocate resources and plan for future periods. Reported non-GAAP results should only be considered as supplemental to results prepared in accordance with GAAP, and not considered as a substitute for, or superior to, GAAP results. These non-GAAP measures may differ from the non-GAAP measures reported by other companies in our industry.

SEAGATE TECHNOLOGY PLC

ADJUSTMENTS TO GAAP NET INCOME AND DILUTED NET INCOME PER SHARE

(In millions, except per share amounts)

(Unaudited)

(A) For the three and six months ended January 1, 2016, Revenue has been adjusted on a non-GAAP basis for changes in the sales return provision for certain products that will be discontinued.

(B) For the three and six months ended January 1, 2016, Cost of revenue has been adjusted on a non-GAAP basis to exclude amortization of intangibles associated with acquisitions, and write off of certain fixed assets and discontinued inventory.

(C) For the three and six months ended January 1, 2016, Product development expenses have been adjusted on a non-GAAP basis to exclude the impact of integration costs associated with acquisitions.

(D) For the three and six months ended January 1, 2016, Marketing and administrative expenses have been adjusted on a non-GAAP basis to exclude the write off of certain fixed assets and the impact of integration costs associated with acquisitions.

(E) For the three and six months ended January 1, 2016, Amortization of intangibles primarily related to our acquisitions has been excluded on a non-GAAP basis.

(F) For the three and six months ended January 1, 2016, Restructuring and other net, primarily related to a reduction in our work force as a result of our ongoing focus on cost efficiencies in all areas of our business, has been excluded on a non-GAAP basis.

(G) For the six months ended January 1, 2016, Other expense, net has been adjusted on a non-GAAP basis to exclude the impairment of a certain strategic investment.