CEO Seunghoon Choi Increases Stake to 0.69% with Purchase of 5,476 Shares


  • CEO Seunghoon Choi acquired 5,476 common shares on May 22, 2026 via open market purchase at an average price of 6,697 won
  • Post-acquisition holdings increased from 20,614 to 26,090 shares, raising ownership from 0.54% to 0.69%
  • Purchase price (6,697 won) is slightly above the closing price of 6,650 won on the reporting date
  • This filing is a routine disclosure of change in insider ownership
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KOSDAQ Filing Information


  • Filing: Report on Ownership of Specific Securities by Executives and Major Shareholders
  • Company: Daesung Microbiological Labs (036480)
  • Submission: Seunghoon Choi
  • Receipt: 05-22-2026