Insider Transactions of Roger A. Carolin at Amkor Technology, Inc.

On June 23, 2026, Roger A. Carolin, a director at Amkor Technology, Inc. (AMKR), acquired dividend equivalent units (DEUs) in the form of Restricted Stock Units (RSUs). These DEUs were accrued upon the payment of a dividend on the same date and are subject to the same provisions as the original RSUs granted on May 16, 2023, May 15, 2025, and May 13, 2026. The transactions include the acquisition of 8.1651 shares, 9.4278 shares, and 2.5166 shares, resulting in post-transaction holdings of 8903.9532, 9902.4851, and 2615.5166 shares, respectively. These acquisitions were made under a Form 4 filing, with the signature date of June 25, 2026.