Amkor Technology Director Morse Receives Dividend Equivalent Units on RSUs

This SEC Form 4 filing reports that Robert R. Morse, a director of Amkor Technology, Inc. (AMKR), received dividend equivalent units (DEUs) on June 23, 2026, as a result of dividend payments on his restricted stock units (RSUs). The DEUs represent additional RSUs that accrue when dividends are paid on the underlying shares. Morse received three separate DEU grants totaling 20.1095 units: 8.1651 units from May 2023 RSUs, 9.4278 units from May 2025 RSUs, and 2.5166 units from May 2026 RSUs. All DEUs were acquired at $0 per share and are subject to the same vesting conditions as the original RSUs. Following these transactions, Morse holds 8,903.9532 DEUs from the 2023 grant, 9,902.4851 DEUs from the 2025 grant, and 2,615.5166 DEUs from the 2026 grant. The filing represents routine equity compensation adjustments rather than discretionary trading activity.