Report on Changes in Shares Held by the Largest Shareholder and Related Parties

SK Hynix Inc. (000660) filed a report on changes in shares held by its largest shareholder and related parties. The combined holdings decreased marginally by 1,775 shares, from 146,115,505 shares (20.07%) as of January 29, 2026, to 146,113,730 shares (20.50%) as of March 26, 2026