X0306 4 2023-03-12 0 0001325702 MAGNACHIP SEMICONDUCTOR Corp MX 0001805443 Park Shin Young C/O MAGNACHIP SEMICONDUCTOR, LTD., 108, YEOUI-DAERO, YEONGDEUNGPO-GU SEOUL M5 07335 KOREA, REPUBLIC OF 0 1 0 0 See Remarks Common Stock 2023-03-12 4 F 0 1521 9.39 D 77935 D This transaction represents the withholding by the Issuer of 1,521 shares of common stock to satisfy tax withholding obligations incurred by the Reporting Person upon the vesting of 3,333 shares of common stock originally awarded to the Reporting Person on March 12, 2020. Chief Financial Officer /s/ Theodore Kim, Attorney-in-Fact 2023-03-14