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Jeju Semiconductor Corp. — Investor Relations & Filings

Ticker · 080220 ISIN · KR7080220007 KO Manufacturing
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Filings indexed 218 across all filing types
Latest filing 2026-05-22 Major Shareholding Noti…
Country KR South Korea
Listing KO 080220

About Jeju Semiconductor Corp.

http://www.jeju-semi.com/

Jeju Semiconductor Corp. (JSC) is a fabless semiconductor company that designs and provides total solutions for memory semiconductors. The company specializes in low-power, high-capacity memory technologies for the Internet of Things (IoT) market. Its product portfolio includes a variety of Multi-Chip Package (MCP) solutions such as NAND MCP, eMCP, and NOR MCP. JSC also offers Low Power DRAM (LPDRAM) featuring modes like Partial Array Self Refresh and Deep Power Down, as well as eMMC (embedded Multi-Media Card) for consumer products like home appliances, CCTV, and set-top boxes. The company focuses on developing memory solutions for mobile applications and other diverse electronic devices.

Recent filings

Filing Released Lang Actions
주식등의대량보유상황보고서(일반)
Major Shareholding Notification Classification · 98% confidence The document is a detailed “주식등의 대량보유상황보고서” filed under Korea’s Capital Markets Act Article 147, reporting large shareholdings, changes in ownership percentages, and threshold crossings by major shareholder 박성식 and related parties. This matches the definition of a Major Shareholding Notification, which covers notifications of significant share ownership changes. Therefore, the correct classification is MRQ.
2026-05-22 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Director's Dealing Classification · 85% confidence The document is a Korean regulatory filing titled “임원ㆍ주요주주 특정증권등 소유상황보고서” which details the ownership status and changes of specific securities held by an executive (the CEO) of Jeju Semiconductor. It contains detailed insider shareholding changes, including call option conversions and acquisition/disposition of convertible bonds. This matches the definition of a Director’s Dealing report (Code: DIRS), which covers personal share transactions by company directors and executives.
2026-05-22 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Director's Dealing Classification · 95% confidence The document is a Korean statutory form titled “임원ㆍ주요주주 특정증권등 소유상황보고서,” addressed to the Financial Services Commission and Korea Exchange. It details an executive’s holdings and changes in securities (conversion rights, share counts, percentages), along with acquisition/disposition dates. This matches insider share transaction reporting by directors rather than a full financial report or proxy. Therefore, it is classified as Director’s Dealing (Code: DIRS).
2026-05-22 Korean
[기재정정]주요사항보고서(전환사채매수선택권행사자지정)
Capital/Financing Update Classification · 77% confidence The document is a Korean regulatory “주요사항보고서” (material event report) detailing corrections (“정정신고”) to the designation of exercise participants for a private, unsecured, non-guaranteed convertible bond (전환사채매수선택권 행사자 지정). This concerns a financing event (convertible bond issuance and related call option designation), i.e., a capital/financing update rather than a direct share issue, dividend, management change, or AGM material. Therefore, the most appropriate category is Capital/Financing Update (CAP).
2026-05-21 Korean
[기재정정]주요사항보고서(신주인수권부사채매수선택권행사자지정)
Regulatory Filings Classification · 85% confidence The document is a Korean “주요사항보고서” (Major Event Report) filed with the Financial Supervisory Service, specifically an amendment (“정정신고”) to a prior report on designation of warrant exercise rights for bonds with warrants. It does not contain substantive financial statements or represent an annual/interim report, nor is it simply announcing a report publication. It is a regulatory compliance disclosure under Korean rules, fitting the fallback “Regulatory Filings” category.
2026-05-21 Korean
주요사항보고서(전환사채매수선택권행사자지정)
Regulatory Filings Classification · 83% confidence The document is a Korean "주요사항보고서" (Material Event Report) filed with the Financial Services Commission regarding the designation of option holders for a convertible bond purchase option. It is not an earnings release, financial statement, or AGM/annual report; rather it is a regulatory corporate event announcement. Therefore it falls into the general Regulatory Filings category (RNS).
2026-05-15 Korean

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