Largest Shareholder Donggyu Jeon Extends Stock Pledged Loan Maturity and Reduces Pledged Shares by 155k, Maintaining 23.60% Stake with No Change in Control


  • Holdings of largest shareholder Donggyu Jeon and related parties unchanged at 15,019,430 shares (23.60%) from prior report
  • Shares under major pledge contracts decreased by 155,558 shares from 12,290,502 (19.32%) to 12,134,944 (19.06%) due to maturity extension and reduction in pledged stock, reducing forced selling risk
  • Jeon individually has 12 pledge contracts totaling 11,462,944 shares; total 16 contracts including co-holder Sistema Jeilcha Co. (2,000,000 shares, 3.14%)
  • [AI Summary]The reduction in pledged shares is positive, but 19.06% of outstanding shares remain pledged, posing potential margin call or forced liquidation risk if stock price falls; no direct impact on management control

KOSDAQ Filing Information


  • Filing: Report on Large Shareholding (General)
  • Company: Seojin System (178320)
  • Submission: Donggyu Jeon
  • Receipt: 06-02-2026