Seagate Technology Plc (STX) SEC Filing 10-K Annual report for the fiscal year ending Friday, June 28, 2013

Exhibit 99.1

SEAGATE TECHNOLOGY REPORTS FISCAL FOURTH QUARTER AND YEAR-END 2013

FINANCIAL RESULTS

CUPERTINO, CA — July 24, 2013 — Seagate Technology plc (NASDAQ: STX) (the “Company”) today reported financial results for the quarter and fiscal year ended June 28, 2013. During the fourth quarter, the Company reported revenue of approximately $3.4 billion, gross margin of 27.4%, net income of $348 million and diluted earnings per share of $0.94.  On a non-GAAP basis, which excludes the net impact of certain items, Seagate reported gross margin of 28.0%, net income of $447 million and diluted earnings per share of $1.20.

During the fourth quarter, the Company generated approximately $394 million in operating cash flow, paid cash dividends of $137 million and repurchased 1 million of ordinary shares for approximately $42 million.  The Company issued long-term debt of approximately $1 billion, and repurchased approximately $700 million total par value of its 2016 Notes and 2018 Notes.

For the fiscal year ended June 28, 2013, on a GAAP basis the Company reported revenue of $14.4 billion, gross margin of 27.5%, net income of $1.8 billion and diluted earnings per share of $4.81.  On a non-GAAP basis, the Company reported gross margin of 28.0% and diluted earnings per share of $5.31.  In fiscal year 2013, the Company returned 71% of its operating cash flow, or 96% of free cash flow, to shareholders in dividends and share redemptions. Cash, cash equivalents, restricted cash, and short-term investments totaled approximately $2.3 billion at the end of the fiscal year.

“Seagate’s financial results reflect strong execution in a time of change, uncertainty and opportunity,” said Steve Luczo, Seagate’s chairman, president and chief executive officer. “Looking ahead, we believe the market trends of data growth driven by cloud, mobile and open source advancement will present new and