Seagate Technology Plc (STX) SEC Filing 10-K Annual report for the fiscal year ending Friday, June 29, 2012

Exhibit 99.1

SEAGATE TECHNOLOGY REPORTS FISCAL FOURTH QUARTER 2012

AND YEAR-END 2012 FINANCIAL RESULTS

Reports Record Revenue and Profits for Fiscal Year 2012

Increases Quarterly Dividend by 28% to $0.32 per Share

CUPERTINO, CA — July 30, 2012 — Seagate Technology plc (NASDAQ: STX) today reported financial results for the quarter and fiscal year ended June 29, 2012. During the fourth quarter, on a GAAP basis the company reported revenue of approximately $4.5 billion, gross margin of 33.1%, net income of $1.0 billion and diluted earnings per share of $2.37. On a non-GAAP basis, which excludes the net impact of certain items, Seagate reported gross margin of 33.6% and diluted earnings per share of $2.41.

In the June quarter, Seagate generated approximately $1.4 billion in cash from operations, paid cash dividends of $106 million and used approximately $1.2 billion to redeem approximately 45 million ordinary shares. Through the first half of the 2012 calendar year, Seagate has redeemed approximately 88 million ordinary shares, representing approximately 19% of the company’s market capitalization. Cash, cash equivalents, restricted cash, and short-term investments totaled $2.2 billion at the end of the fourth quarter, a sequential increase of approximately $67 million.

For the fiscal year ended June 29, 2012, on a GAAP basis Seagate reported revenue of $14.9 billion, gross margin of 31.4%, net income of $2.9 billion and diluted earnings per share of $6.49. On a non-GAAP basis, the company reported gross margin of 31.7% and diluted earnings per share of $6.75. In fiscal year 2012, Seagate returned over 85% of its operating cash flow to shareholders in the form dividends and share redemptions.

“As we announced previously, we were disappointed not to meet our revenue and margin plan for the fourth quarter as a result of the industry’s faster recovery from the supply chain disruption and an isolated supplier issue that we experienced,” said Steve Luczo, Seagate chairman and chief executive officer. “Nevertheless, we are pleased to have achieved record revenue and unit shipments for the June quarter, which enabled Seagate to continue to return significant value to shareholders through dividends and share repurchases.”

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