CEO Reports Sale of 80,002 Shares, Cutting Stake to 0.11% — Hana Micron

Summary

CEO Lee Dong-cheol reported a market sale of 80,002 common shares on May 26, 2026, at an average price of KRW 55,032 per share (approximately KRW 4.4 billion in proceeds). His holdings decreased from 150,002 shares (0.23%) to 70,000 shares (0.11%) of the 66,478,426 total outstanding shares. The transaction was filed as a simple sale with no stated strategic purpose. Insider selling by a sitting CEO at this scale can be read as a mildly negative signal by retail investors, though the absolute stake remains small.

Historical Impact

10 past Insider Ownership Change · ≈ Form 4 events at Hana Micron

Median +5d

+2.88%

Range

-6.66% to +4.48%

Positive outcomes

6/10

Filed	P₀	P₊₅	+5d
Jun 4, 2026	₩45,400	₩47,050	+3.63%
Jun 2, 2026	₩41,400	₩43,050

Full Translation

Report on Ownership of Specific Securities by Executives and Major Shareholders To: Securities and Futures Commission To: Korea Exchange Date of reporting obligation: May 26, 2026 Report reference date: June 02, 2026 The undersigned reporter confirms that the ownership status of specific securities as of the report reference date has been accurately prepared in accordance with relevant laws and disclosure guidelines, and that there are no false statements or omissions of material facts. Reporter: Lee Dong-cheol 1. Information on the Issuing Company - Company name: Hana Micron Inc. - Corporate classification: KOSDAQ-listed corporation - Company code: 067310 - Total issued shares: 66,478,426 2. Information on the Reporter - Report category: Change - Reporter type: Individual (domestic) - Name (Korean): Lee Dong-cheol - Name (Hanja/English): 李東哲 (Dong Cheol Lee) - Date of birth: 1962.05.01 - Address: Unjung-dong, Bundang-gu, Seongnam-si, Gyeonggi-do - Relationship with issuer: Executive (registered) - Position: CEO (Representative Director) - Date of appointment: 2019.03.27 - Date of retirement: - - Major shareholder: - - Business contact: Hana Micron Inc., Finance Group, Chief Manager Kim Jae-wook 3. Ownership Status of Specific Securities A. Number and Ratio of Specific Securities Owned - Previous report (2025.11.10): 150,002 specific securities (0.23%); 150,002 shares (0.23%) - Current report (2026.06.02): 70,000 specific securities (0.11%); 70,000 shares (0.11%) - Change: -80,002 (-0.12%); -80,002 (-0.12%) B. Ownership Breakdown by Type of Specific Security - Common stock: 70,000 shares - Warrants, convertible bonds, bonds with warrants, profit-participating bonds, exchangeable bonds, depositary receipts, other: None - Total: 70,000 shares (0.11%) - Total issued shares: 66,478,426 - Ownership ratio of specific securities: 0.11% - Ownership ratio of common stock: 0.11% C. Detailed Change Details - Reason for change: On-market sale (-) - Date of change: 2026.05.26 - Type of security: Common stock - Shares before change: 150,002 - Change: -80,002 - Shares after change: 70,000 - Disposal unit price: KRW 55,032 - Remarks: Simple sale - Trading plan report date: - Note: For securities market transactions, the date of change is the contract settlement date.