WATSON DAVID N 4

What Happened

• David N. Watson, a director of Amkor Technology, received an award of 2.517 shares in the form of dividend equivalent units (DEUs) on June 23, 2026. The DEUs were credited at $0.00 each (total value $0) and are treated as additional restricted stock units (RSUs) tied to an earlier RSU grant.

Key Details

• Transaction date: 2026-06-23; Filing date: 2026-06-25 (timely).
• Transaction type: Award/acquisition of derivative securities (code A).
• Shares/units acquired: 2.517 DEUs at $0.00 per unit (total reported value $0).
• Post-transaction holdings: Not specified in the provided filing excerpt.
• Footnote: The DEUs were accrued upon a dividend payment with respect to time-vested RSUs granted May 13, 2026; each DEU converts to an RSU with the same terms as the underlying RSU.
• No indication of a 10b5-1 plan, sale, tax withholding, or late filing in this record.

Context

• DEUs are a bookkeeping credit that converts into additional RSUs tied to existing awards; they are not an open-market purchase or sale and do not directly signal a trading decision. This is a routine equity compensation adjustment reflecting a dividend credit on previously granted, time-vested RSUs.