Philoptics' largest shareholder Gisu Han extends stock-backed loans, adjusts special relations, holding ratio slightly down to 25.89%... Neutral change


  • The combined stake of largest shareholder Gisu Han and his special relations slightly decreased from 25.92% to 25.89% (down 0.03%p), due to the departure of one special relation (Eunsuk Ko, 3,325 shares) and the exercise of stock options (Kwangil Kim, 20,000 shares). This minor change does not materially affect control.
  • Gisu Han extended existing stock-backed loan agreements with KB Securities. The pledged shares total 1,405,678 (approx. 23.2% of his holdings, 6.00% of total outstanding), with loan amounts of 4.0B KRW and 3.0B KRW (total 7.0B KRW), maintenance ratio of 170%, and interest rate of 5.0%. While a margin call risk exists if the stock price falls, the current collateral value (based on 48,400 KRW) is about 68.0B KRW, providing sufficient buffer.
  • Special relation Eunsuk Ko sold 3,325 shares and ceased to be a special relation, reducing the count from 5 to 4. Meanwhile, affiliate executive Kwangil Kim exercised stock options (strike price 7,830 KRW) to acquire 20,000 shares, maintaining his special relation stake at 0.21%. The option exercise increased total outstanding shares by 39,500 (to 23,442,247), but dilution is only 0.17%, with limited impact on existing shareholders.
  • The reporting purpose is to maintain influence as the largest shareholder; there are no specific plans for changes in management control such as director appointments, capital changes, or dividends at this time.

KOSDAQ Filing Information


  • Filing: Report on Large Shareholding (General)
  • Company: PHILOPTICS (161580)
  • Submission: Gisu Han
  • Receipt: 05-28-2026