X0306 4 2019-01-09 1 0001325702 MAGNACHIP SEMICONDUCTOR Corp MX 0001492296 Lee Tae Jong 60 SOUTH MARKET STREET, SUITE 750 SAN JOSE CA 95113 0 1 0 0 See Remarks Common Stock 2019-01-09 4 F 0 990 6.87 D 56460 D This transaction represents the withholding by the Issuer of 990 shares of common stock to satisfy tax withholding obligations incurred by the Reporting Person upon the vesting of 4,500 shares of common stock originally awarded to the Reporting Person on March 11, 2016. Executive Vice President and General Manager, Foundry Services Group /s/ Theodore Kim, Attorney-in-Fact 2019-01-11