DEVICE Major Shareholder Bongjin Choi Corrects Stock Option Numbers Due to Stock Split

This filing is a correction to the substantial shareholding report originally submitted on May 22, 2026.
The number of stock options was recalculated per the stock option agreement, reducing total potential shares from 420,000 to 410,984.
Total shares held were adjusted from 5,150,460 to 5,141,444, with the ownership ratio barely changing from 37.40% to 37.34%.
This is purely a numerical correction with no material impact on shareholder value.
[AI Summary]This amendment is a simple clerical correction of stock option figures following the stock split. There is zero financial impact. The stock split has already been executed, and the major shareholder's stake remains stable at around 37%. Investors should view this as a non-event.