Non-registered Executive Sells Entire 419-Share Holding — SK Hynix

Summary

A non-registered executive in the IR organization, Kang Chun-ho, disposed of his remaining 419 common shares via on-market sale on May 7, 2026, at 1,645,000 won per share. His ownership now stands at zero, down from 419 shares reported on February 6, 2026. The transaction value is roughly 689 million won, a negligible amount relative to the 712.7 million shares outstanding. As a routine insider filing involving a tiny stake from a non-registered executive, the disclosure carries minimal signaling value for the broader share price.

Historical Impact

10 past Insider Ownership Change · ≈ Form 4 events at SK Hynix

Median +5d

+5.08%

Range

-13.16% to +23.42%

Positive outcomes

8/10

Filed	P₀	P₊₅	+5d
Jul 1, 2026	₩2,560,000	₩2,223,000	-13.16%
Jul 1, 2026	₩2,560,000	₩2,223,000	-13.16%

Full Translation

Report on Ownership of Specified Securities by Executives and Major Shareholders 6.1 SK Hynix Inc. 2026-05-07 Report on Ownership of Specified Securities by Executives and Major Shareholders To: Securities and Futures Commission To: Korea Exchange Date reporting obligation arose: May 7, 2026 Report preparation reference date: June 9, 2026 * The reporter hereby confirms that, as of the report preparation reference date, the ownership status of his specified securities has been accurately prepared in accordance with the relevant laws and reporting guidelines, and that there is no false statement or omission of material facts. Reporter: Kang Chun-ho 1. Information on the Issuing Company - Company name: SK Hynix Inc. - Corporate classification: KOSPI-listed corporation - Company code: 000660 - Total shares issued: 712,702,365 2. Information on the Reporter - Report type: Change - Reporter classification: Individual (domestic) - Name (Korean): Kang Chun-ho - Name (Chinese/English): 姜春浩 - Date of birth or business registration number: 1969-08-17 - Address (up to eup/myeon/dong only): Imae-ro, Bundang-gu, Seongnam-si, Gyeonggi-do - Relationship to issuer: Executive (registration status: non-registered executive) - Position: In charge (TL) - Appointment date: January 1, 2025 - Retirement date: - - Major shareholder: - - Business contact: - Company: SK Hynix Inc. - Department: IR - Position: TL - Phone: 031-80******* - Name: Choi Seo-yoon - Fax: 031-8093-4578 - Email: ******n.choi@sk.com 3. Ownership Status of Specified Securities A. Number and ownership ratio of specified securities held - Previous report (February 6, 2026): 419 shares of common stock (0.00%) - Current report (June 9, 2026): 0 shares (0.00%) - Change: -419 shares (0.00%) B. Holdings by type of specified securities - Common stock: 0 shares - Warrants: - - Convertible bonds: - - Bonds with warrants: - - Profit-participating bonds: - - Exchangeable bonds: - - Depositary receipts: - - Other: - - Total: 0 shares (0.00%) - Total shares issued (J): 712,702,365 - Number of specified securities other than shares (B+C+D+E+F+G+H=I): 0 - Ownership ratio: 0.00% - Common stock ownership ratio (A / J) × 100: 0.00% C. Detailed change history - Reason: On-market sale (-) - Change date: May 7, 2026 - Type of specified securities: Common stock - Shares held before: 419 - Change: -419 - Shares held after: 0 - Acquisition/disposal unit price: 1,645,000 won - Trading plan report date: - - Total: Before 419 / Change -419 / After 0 / Unit price 1,645,000 won * For trades executed on the securities market, the contract settlement date applies. ** For securities other than shares, the unit price refers to the exercise (conversion/exchange) price or the trading unit price of shares acquired/disposed through the exercise of the relevant security's rights; amounts in parentheses indicate the trading unit price of the relevant security.