Major Shareholder Kang Seon-geun Increases Stake from 40.91% to 43.91% via Open Market Purchase (+3.00%p)


  • Major shareholder Kang Seon-geun acquired 35,231 shares through open market purchase, increasing his stake from 40.91% to 43.91% (up 3.00%p)
  • Change in specially related parties: Seo Eun-sook, newly appointed as a registered executive, added as a specially related party (79,472 voting shares, 51,256 stock options)
  • Kim Ja-hwan, who retired as an executive, removed from specially related parties (decrease of 120,000 voting shares, cancellation of 1,495 stock options)
  • As of the report base date, total shares held by the reporter and specially related parties: 3,340,915 shares (42.56% based on voting rights)
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KOSDAQ Filing Information


  • Filing: Report on Large Shareholding (General)
  • Company: Brainzcompany (099390)
  • Submission: Seongeun Kang
  • Receipt: 05-21-2026