Amkor Technology, Inc. disclosed that on February 12, 2026, stockholder 915 Investments, LP entered into an underwriting agreement with Goldman Sachs & Co. LLC for the sale of 10,000,000 shares of common stock at a public offering price of $48.75 per share, with a 30-day option for 1,500,000 additional shares. The Company agreed to a 75-day clear market provision and the Selling Stockholder to a 180-day lock-up on remaining shares.