Shares of Seagate Technology Plc. /zigman2/quotes/201824240/composite STX +0.52% fell nearly 5% in the extended session Thursday after the company reported fiscal second-quarter profit and sales ahead of expectations and guidance for the third quarter around Wall Street views. The data-storage company said it earned $280 million, or $1.12 a share, in the quarter, compared with $1.20 a share in the year-ago quarter. Adjusted for one-time items, Seagate earned $1.29 a share, compared with $1.35 a share a year ago. Revenue fell to $2.62 billion, from $2.70 billion a year ago. Analysts polled by FactSet expected adjusted earnings of $1.13 a share on sales of $2.57 billion. Seagate said it expects fiscal third-quarter revenue around $2.65 billion, give it or take $200 million, and adjusted EPS around $1.30, plus or minus 15 cents. The analysts surveyed by FactSet expect adjusted fiscal third quarter earnings of $1.28 a share on sales of $2.64 billion. Seagate said it experienced "broad-based improvement" across markets and geographies and "solid customer demand" fors its products. The shares ended the regular trading day up 2.5%.