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Seojin System

178320 · KOSDAQ · ₩178320 · 서진시스템

₩31,050▼ ₩1,400 (4.31%)End-of-day · Oct 29, 2026 · End-of-day prices.
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Filings

  • Amended: Change of largest shareholder[기재정정]최대주주변경을수반하는주식담보제공계약체결

    Predicted impact: Low

    Oct 30, 2026Open on DART
  • [Amendment] Decision on Debt Guarantee to Third Party[기재정정]타인에대한채무보증결정

    Predicted impact: Low

    Oct 29, 2026Open on DART
  • [Amendment] Decision on Debt Guarantee to Third Party[기재정정]타인에대한채무보증결정

    Predicted impact: Low

    Oct 29, 2026Open on DART
  • [Amendment] Decision on Debt Guarantee to Third Party[기재정정]타인에대한채무보증결정

    Predicted impact: Low

    Oct 29, 2026Open on DART
  • Decision on Guarantee of Debt for Another Party타인에대한채무보증결정

    Predicted impact: Low

    Debt guarantee for others, amended filings already issued; size unknown in data.

    Oct 28, 2026Open on DART
  • [Amendment] Decision on Debt Guarantee to Third Party[기재정정]타인에대한채무보증결정

    Predicted impact: Low

    Oct 19, 2026Open on DART
  • [Amendment] Decision on Debt Guarantee to Third Party[기재정정]타인에대한채무보증결정

    Predicted impact: Low

    Oct 19, 2026Open on DART
  • 5%+ holding report주식등의대량보유상황보고서(일반)

    Predicted impact: Low

    Oct 16, 2026Open on DART
  • Amended: Change of largest shareholder[기재정정]최대주주변경을수반하는주식담보제공계약체결

    Predicted impact: Low· Actual: +8.1% vs sector, volume 1.2× normal (5 trading days)

    Oct 12, 2026Open on DART
  • Major sales or supply contract단일판매ㆍ공급계약체결(자율공시)

    Predicted impact: Medium· Actual: +8.1% vs sector, volume 1.2× normal (5 trading days)

    Supply contract worth about 10% of last year's revenue, just under the high threshold.

    Oct 12, 2026Open on DART
  • 5%+ holding report주식등의대량보유상황보고서(약식)Oct 7, 2026Open on DART
  • [Amendment] Decision on Debt Guarantee to Third Party[기재정정]타인에대한채무보증결정Oct 2, 2026Open on DART
  • Other management matters기타경영사항(자율공시)(종속회사의주요경영사항)Sep 30, 2026Open on DART
  • 5%+ holding report주식등의대량보유상황보고서(일반)Sep 23, 2026Open on DART
  • Amended: Change of largest shareholder[기재정정]최대주주변경을수반하는주식담보제공계약체결Sep 22, 2026Open on DART
  • 5%+ holding report주식등의대량보유상황보고서(일반)Sep 21, 2026Open on DART
  • [Amendment] Decision on Debt Guarantee to Third Party[기재정정]타인에대한채무보증결정Sep 18, 2026Open on DART
  • [Amendment] Decision on Debt Guarantee to Third Party[기재정정]타인에대한채무보증결정Sep 18, 2026Open on DART
  • Amended: Change of largest shareholder[기재정정]최대주주변경을수반하는주식담보제공계약체결Sep 14, 2026Open on DART
  • 5%+ holding report주식등의대량보유상황보고서(일반)Sep 7, 2026Open on DART
  • Securities Issuance Results (Voluntary Disclosure) (42nd Round CB)증권발행결과(자율공시) (제42회차 CB)Sep 4, 2026Open on DART
  • Securities Issuance Results (Voluntary Disclosure) (41st Round CB)증권발행결과(자율공시) (제41회차 CB)Sep 4, 2026Open on DART
  • Results of Securities Issuance (Voluntary Disclosure) (40th Round CB)증권발행결과(자율공시) (제40회차 CB)Sep 1, 2026Open on DART
  • Results of Securities Issuance (Voluntary Disclosure) (39th Round CB)증권발행결과(자율공시) (제39회차 CB)Sep 1, 2026Open on DART
  • [Amended Filing] Major Matters Report (Decision on Issuance of Debt Securities Recognized as Equity)[기재정정]주요사항보고서(자본으로인정되는채무증권발행결정)Sep 1, 2026Open on DART
  • Amended: Convertible bond issue decision[기재정정]주요사항보고서(전환사채권발행결정)Sep 1, 2026Open on DART
  • [Amended Filing] Major Matters Report (Decision on Issuance of Debt Securities Recognized as Equity)[기재정정]주요사항보고서(자본으로인정되는채무증권발행결정)Sep 1, 2026Open on DART
  • Amended: Convertible bond issue decision[기재정정]주요사항보고서(전환사채권발행결정)Sep 1, 2026Open on DART
  • Amended: Change of largest shareholder[기재정정]최대주주변경을수반하는주식담보제공계약체결Aug 31, 2026Open on DART
  • Convertible bond issue decision주요사항보고서(전환사채권발행결정)Aug 24, 2026Open on DART
  • Material Matters Report (Decision on Issuance of Debt Securities Recognized as Capital)주요사항보고서(자본으로인정되는채무증권발행결정)Aug 24, 2026Open on DART
  • Convertible bond issue decision주요사항보고서(전환사채권발행결정)Aug 24, 2026Open on DART
  • Convertible bond issue decision주요사항보고서(전환사채권발행결정)Aug 24, 2026Open on DART
  • Material Matters Report (Decision on Issuance of Debt Securities Recognized as Capital)주요사항보고서(자본으로인정되는채무증권발행결정)Aug 24, 2026Open on DART
  • Convertible bond issue decision주요사항보고서(전환사채권발행결정)Aug 24, 2026Open on DART
  • [Amendment] Decision on Debt Guarantee to Third Party[기재정정]타인에대한채무보증결정Aug 18, 2026Open on DART
  • [Amendment] Decision on Debt Guarantee to Third Party[기재정정]타인에대한채무보증결정Aug 18, 2026Open on DART
  • Half-year report (Jun 2026)반기보고서 (2026.06)Aug 14, 2026Open on DART
  • [Amendment] Decision on Debt Guarantee to Third Party[기재정정]타인에대한채무보증결정Aug 13, 2026Open on DART
  • [Amendment] Decision on Debt Guarantee to Third Party[기재정정]타인에대한채무보증결정Aug 12, 2026Open on DART
  • Amended: Change of largest shareholder[기재정정]최대주주변경을수반하는주식담보제공계약체결Aug 7, 2026Open on DART
  • Amended: Major sales or supply contract[기재정정]단일판매ㆍ공급계약체결Aug 7, 2026Open on DART
  • 5%+ holding report주식등의대량보유상황보고서(일반)Aug 7, 2026Open on DART
  • [Amendment] Decision on Debt Guarantee to Third Party[기재정정]타인에대한채무보증결정Aug 5, 2026Open on DART
  • Decision on Guarantee of Debt for Another Party타인에대한채무보증결정Aug 4, 2026Open on DART
  • Amended: Change of largest shareholder[기재정정]최대주주변경을수반하는주식담보제공계약체결Aug 3, 2026Open on DART
  • 5%+ holding report주식등의대량보유상황보고서(일반)Jul 16, 2026Open on DART
  • Major sales or supply contract단일판매ㆍ공급계약체결(자율공시)Jul 15, 2026Open on DART
  • Amended: Change of largest shareholder[기재정정]최대주주변경을수반하는주식담보제공계약체결Jul 13, 2026Open on DART
  • Change of largest shareholder최대주주변경을수반하는주식담보제공계약체결Jul 10, 2026Open on DART

Titles in Korean until English translations are added.

Also known as: Seojin System / 서진시스템 / 178320 / KRX:178320

Source: KRX statistical information