Carolin Roger Anthony 4

What Happened
Carolin Roger Anthony, a director of Amkor Technology, received two awards of dividend-equivalent units (DEUs) that convert into additional restricted stock units (RSUs). The awards totaled 15.725 and 18.156 DEUs (33.881 total) on March 31, 2026, recorded as derivative acquisitions at $0.00 per unit (no cash exchanged).

Key Details

• Transaction date: March 31, 2026; Form 4 filed April 2, 2026 (filing appears timely).
• Units received: 15.725 DEUs (related to RSUs granted May 16, 2023) and 18.156 DEUs (related to RSUs granted May 15, 2025); total = 33.881 DEUs.
• Price per unit: $0.00 (DEUs are accrued additional RSUs, not cash purchases).
• Shares owned after transaction: not specified in this Form 4.
• Footnotes: F1 and F2 state each DEU represents an additional RSU subject to the same vesting and terms as the original RSUs.
• Transaction type code: A = Award/Grant (derivative).

Context
DEUs are dividend equivalents accrued on existing, time-vested RSUs and simply increase the number of RSUs subject to the same vesting rules — they are not open-market purchases or sales. Such awards are routine compensation-related events and do not by themselves signal a buy or sell decision by the insider.