Heo Chang-su, GS Engineering & Construction largest shareholder, slightly reduces stake from 23.22% to 23.05% due to open market sales and new executive appointment


  • The largest shareholder Heo Chang-su and his special relations' stake decreased from 23.22% to 23.05%, a 0.17 percentage point drop.
  • The decrease resulted from open market sales by special relations Heo Doo-hong and Heo Cheol-hong of 151,429 shares, offset by a slight increase from new executive Kim Tae-jin's employee stock purchase of 1,756 shares.
  • The sold volume is negligible and the report is routine, with no impact on management control; thus, the effect on share price is limited.
  • [AI Summary]The minor reduction in the largest shareholder's stake is interpreted as ordinary open-market sales for personal liquidity, with no change in company fundamentals. Negative impact on short-term stock price is expected to be minimal.

KOSPI Filing Information


  • Filing: [Correction of Description] Report on Large Shareholdings (General)
  • Company: GS Engineering & Construction (006360)
  • Submission: Heo Chang-su
  • Receipt: 04-15-2026