SKHY: 6-K company filing

6-K 1 d370650d6k.htm FORM 6-K Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF OCTOBER 2026 Commission File Number: 001-43391 SK hynix Inc. (Translation of registrant’s name into English) 2091, Gyeongchung-daero Bubal-eup, Icheon-si Gyeonggi-do 17336, Korea (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F. Form 20-F ☒ Form 40-F ☐ Report on Acquisition of Treasury Shares From August 20, 2026 to October 21, 2026, SK hynix Inc. (the “Company”) acquired treasury shares through open-market purchases. 1. Report on Acquisition A. Date of the Report of Decision on Acquisition of Treasury Shares (the “Initial Report”): August 19, 2026 (please refer to the current report on Form 6-K titled “Decision on Acquisition of Treasury Shares” furnished by the Company on August 19, 2026.) B. Period of Acquisition (based on order execution dates): August 20, 2026 to October 21, 2026 2. Details of Acquisition (Unit: in Won and shares) Date (1) Type Number of Shares Ordered Number of Shares Acquired Acquisition Price Per Share (2)(3) Aggregate Acquisition Price (3) Investment Brokerage Agent August 20, 2026 Common shares 650,000 650,000 1,678,171 1,090,818,241,000 SK Securities Co., Ltd. August 21, 2026 Common shares 650,000 650,000 1,743,847 1,133,500,665,500 SK Securities Co., Ltd. August 24, 2026 Common shares 650,000 650,000 1,713,617 1,113,851,100,500 SK Securities Co., Ltd. August 25, 2026 Common shares 650,000 650,000 1,612,261 1,047,970,079,500 SK Securities Co., Ltd. August 26, 2026 Common shares 650,000 650,000 1,7