Y-Biologics CEO Park Young-woo Increases Stake by 0.01% via Open Market Purchase, Signaling Management Confidence


  • Y-Biologics CEO Park Young-woo acquired 1,900 common shares on June 23, 2026 at 13,878 KRW per share via open market purchase, raising his stake from 22.92% to 22.93%, an increase of 0.01%.
  • This minor insider buying reflects management confidence but has negligible impact on shareholder value given the tiny change relative to total outstanding shares.
  • No capital dilution or fundraising purpose; it is a routine personal market transaction.
  • [AI Summary]The CEO's small open market purchase signals management confidence but has limited market impact and does not alter shareholder value.

KOSDAQ Filing Information


  • Report on Ownership of Specific Securities by Executives and Major Shareholders
  • Company: Y-Biologics (338840)
  • Submission: Park Young-woo

  • Shares: 15,366,681
  • Price: 12,640 KRW
  • Market Cap: 194.2 B KRW