Executive Ownership Report: Foundry FAB3 EVP Net +1 Share

Report on Ownership of Specified Securities by Executives and Major Shareholders 6.1 Samsung Electronics Co., Ltd. 20251215 Report on Ownership of Specified Securities by Executives and Major Shareholders To: Securities and Futures Commission To: Korea Exchange Date of reporting obligation: 2025.12.15 Report reference date: 2025.12.15 * The reporter hereby confirms that, as of the report reference date, he has accurately prepared the status of his ownership of specified securities in accordance with the relevant laws and notes for preparation, and that there are no false statements or omissions of material matters. Reporter: Kim Kyoung-seok 1. Information on the Issuing Company Company name: Samsung Electronics Co., Ltd. Corporate classification: KOSPI-listed corporation Company code: 005930 Total issued shares: 6,648,649,811 2. Information on the Reporter Report category: Change Reporter classification: Individual (domestic) Name (Korean): Kim Kyoung-seok Name (Chinese/English): 金景錫 (KIM KYOUNGSEOK) Date of birth or business registration number: 770106 Address (head office) [recorded only to eup/myeon/dong level]: Dongtanyeok-ro, Hwaseong-si, Gyeonggi-do Relationship with issuer: Executive (registered status): Non-registered executive Title: Executive Vice President (Sangmu) Appointment date: 2025.11.25 Resignation date: - Major shareholder: - Business contact and person in charge: Affiliated company: Samsung Electronics Co., Ltd. Department: Foundry FAB3 Team Position: Executive Vice President (Sangmu) Phone: 010-74******* Name: Kim Kyoung-seok Fax: 010-74****334 Email: ******s@samsung.com 3. Status of Ownership of Specified Securities A. Number and Ownership Ratio of Specified Securities Held Report reference date | Specified securities count (shares) | Ratio (%) | Common shares (shares) | Ratio (%) Prior report (2026.01.30): 236 | 0.00 | 236 | 0.00 Current report (2026.05.29): 237 | 0.00 | 237 | 0.00 Change: 1 | 0.00 | 1 | 0.00 B. Holdings by Type of Specified Security Common shares (A): 237 shares (0.00%) Warrants representing new share subscription rights (B): - Convertible bonds (C): - Bonds with warrants (D): - Profit-participating bonds (E): - Exchangeable bonds (F): - Depositary receipts (G): - Other (H): - Total (I): 237 shares (0.00%) Total issued shares (J): 6,648,649,811 Number of specified securities other than shares (B+C+D+E+F+G+H = I): 0 Ownership ratio (%): 0.00 Ownership ratio of specified securities [(A+I) / (J+I-(F+G+H))*] × 100: 0.00 Ownership ratio of common shares (A/J) × 100: 0.00 * Only exchangeable bonds whose underlying is shares, depositary receipts whose underlying is shares, and derivative-linked securities are excluded from the denominator when calculating the ownership ratio. C. Details of Changes Reason | Change date* | Type of specified security | Shares held before | Change | Shares held after | Acquisition/disposal unit price (KRW)** | Notes | Trading plan report date On-market purchase (+) | 2025.12.15 | Common | 87 | 1 | 88 | (109,550) | - | - On-market sale (-) | 2026.01.30 | Common | 88 | -1 | 87 | (162,600) | - | - On-market purchase (+) | 2026.01.30 | Common | 87 | 1 | 88 | (162,700) | - | - On-market sale (-) | 2026.05.29 | Common | 88 | -1,249 | -1,161 | (320,500) | - | - On-market purchase (+) | 2026.05.29 | Common | -1,161 | 1,249 | 88 | (321,000) | - | - Total | -811 | 1 | -810 | - | - * For trades executed on a securities exchange, the contract settlement date is used. ** For securities other than shares, this refers to the exercise (conversion/exchange) price of the relevant security or the trading price of shares acquired/disposed through exercise of rights. Amounts in parentheses indicate the trading price of the relevant security.