Treasury Stock Disposal Results Report — SK Hynix

Summary

SK Hynix completed the disposal of 12,536 treasury shares on May 4, 2026 at KRW 1,447,000 per share, totaling approximately KRW 18.14 billion. The shares were allocated to executives (12,271 shares) and outside directors (265 shares), executed via SK Securities, consistent with the previously announced plan filed on April 22, 2026. Following the disposal, the company still holds 1,630,448 treasury shares (0.2% of total) valued at KRW 92,950 million. The filing also references a prior call option exercise on April 28, 2026 affecting the exchange period of outstanding exchangeable bonds (originally issued April 2023), with 1,217,026 shares remaining exchangeable at KRW 108,811. This is a routine equity compensation event with minimal expected market impact given the small float relative to total shares outstanding.

Historical Impact

3 past Treasury Stock Sale Result · ≈ 8-K events at SK Hynix

Median +5d

+3.76%

Range

-1.53% to +4.89%

Positive outcomes

2/3

Filed	P₀	P₊₅	+5d
Feb 6, 2026	₩839,000	₩880,000	+4.89%
Oct 31, 2025	₩559,000	₩580,000

Full Translation

Treasury Stock Disposal Results Report 6.1 SK Hynix Inc. Treasury Stock Disposal Results Report To: Governor of the Financial Supervisory Service May 7, 2026 Company Name: SK Hynix Inc. Representative Director: Kwak No-jeong Head Office Location: 2091 Gyeongchung-daero, Bubal-eup, Icheon-si, Gyeonggi-do (Phone) 031-5185-4114 (Website) http://www.skhynix.com Responsible Preparer: (Position) Head of Finance Division (Name) Kim Woo-hyun (Phone) 031-5185-4114 1. Name and Address of Issuer A. Name: SK Hynix Inc. B. Address: 2091 Gyeongchung-daero, Bubal-eup, Icheon-si, Gyeonggi-do 2. Details of Disposal Report A. Date of Material Event Report Submission: April 22, 2026 B. Disposal Period: From May 4, 2026 to May 4, 2026 C. Type and Number of Shares Reported for Disposal: Registered common shares, total 12,536 shares 3. Disposal Details (Unit: KRW, shares) Date: May 4, 2026 - Type: Common Stock | Order Quantity: 12,271 | Disposal Quantity: 12,271 | Price per Share: 1,447,000 | Total Disposal Value: 17,756,137,000 | Recipient: Executives | Selling Broker: SK Securities | Financial Investment Firm ID: 00131850 - Type: Common Stock | Order Quantity: 265 | Disposal Quantity: 265 | Price per Share: 1,447,000 | Total Disposal Value: 383,455,000 | Recipient: Outside Directors | Selling Broker: SK Securities | Financial Investment Firm ID: 00131850 - Total: 12,536 shares | 18,139,592,000 KRW * The above price per share is the closing price on each respective disposal date. 4. Consistency Between Reported Planned Disposal and Actual Disposal Planned Shares for Disposal: 12,536 common shares (no other shares) Total Shares Actually Disposed: 12,536 common shares (no other shares) Consistency: Matches Reason for Discrepancy: N/A 5. Treasury Stock Holdings After Disposal [As of May 7, 2026] (Unit: KRW millions, shares, %) Common Stock: - Holdings under Article 165-3 of the Act (A): 1,630,448 shares | 0.2% | Total Value: 92,950 million KRW - Holdings under Trust Agreements per Article 165-3 (B): None - Total (A+B): 1,630,448 shares | 0.2% | 92,950 million KRW [Reference] Status of Exchangeable Bonds with Treasury Stock as the Exchange Subject [As of May 7, 2026] (Unit: shares, KRW) Category: Foreign Currency Denominated Bonds Issue Date: April 11, 2023 Exchange Request Period: May 22, 2023 ~ May 18, 2026 Exchangeable Underlying Shares: 20,560,375 Shares Already Requested for Exchange: 19,343,349 Remaining Shares Available for Exchange: 1,217,026 Exchange Price: 108,811 KRW * On April 28, 2026, the issuer exercised its early redemption right (Call Option), resulting in changes to the exchange request period. For details, please refer to the disclosure 'Decision on Acquisition of Self-Exchangeable Bonds Prior to Maturity' (filed April 28, 2026).