Major Shareholder CHOISANGHO CORP. Increases Stake to 28.34% via Open Market Purchases and Adds Special Relation, Strengthening Management Control


  • As of June 30, 2026, CHOISANGHO CORP. holds 11,480,565 shares of Optrontec, increasing its ownership from 27.52% to 28.34%.
  • The report includes a new special relation, CEO CHOI SANG HO, who acquired 78,085 shares through open market purchases.
  • The filer aims to influence management and funded the share purchases with its own capital.
  • [AI Summary]The major shareholder's continuous open market buying signals a commitment to control, but no new capital raising or dividend changes suggest a neutral near-term stock price impact. The addition of a special relation pushes voting rights to 17.78%, limiting short-term catalysts.

KOSDAQ Filing Information


  • Report on Large Shareholding (General)
  • Company: OPTRONTEC (082210)
  • Submission: CHOISANGHO,CORP.

  • Shares: 34,963,330
  • Price: 1,778 KRW
  • Market Cap: 62.2 B KRW