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RF Materials Co., Ltd. — Investor Relations & Filings

Ticker · 327260 ISIN · KR7327260006 KO Manufacturing
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Filings indexed 264 across all filing types
Latest filing 2026-06-11 Major Shareholding Noti…
Country KR South Korea
Listing KO 327260

About RF Materials Co., Ltd.

http://rf-materials.com/en/

RF Materials Co., Ltd. is a specialized company focused on materials and components, primarily manufacturing hermetic packages for mounting compound semiconductors. It produces both glass-to-metal and ceramic-to-metal packages. These products serve as critical solutions for a wide range of industries, including optical communication, laser applications, defense, aerospace, automotive, and radio frequency (RF) systems. The company's offerings are designed for applications such as RF amplifiers, optical transceivers, and industrial laser modules, emphasizing hermeticity and reliability.

Recent filings

Filing Released Lang Actions
주식등의대량보유상황보고서(일반)
Major Shareholding Notification Classification · 92% confidence The document is a ‘Report of Large Shareholdings’ filed by a major shareholder (RFHIC Corporation) under Korean capital markets law, detailing shareholding numbers, percentages, changes, and reasons. This corresponds to a Major Shareholding Notification (under threshold crossing/reporting requirements), code MRQ.
2026-06-11 Korean
주식등의대량보유상황보고서(일반)
Major Shareholding Notification Classification · 92% confidence The document is titled “주식등의 대량보유상황보고서” (“Large Shareholding Status Report”) and contains detailed schedules of shareholdings, changes in ownership quantities, reasons for changes, related parties, and acquisition methods. It is a regulatory filing by a substantial shareholder (Han Ki-woo and related persons) reporting threshold-crossing shareholdings under the Capital Markets Act. This matches the definition for a Major Shareholding Notification (MRQ).
2026-06-11 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Director's Dealing Classification · 92% confidence The document is a regulatory filing titled “임원ㆍ주요주주 특정증권등 소유상황보고서,” detailing the share ownership and transaction changes by a company director/executive (Nam Dong-woo). It lists acquisition/disposal dates, share counts, and percentages of holdings, which matches the definition of insider trading reporting by directors. Therefore, it is classified as a Director’s Dealing report.
2026-06-11 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Director's Dealing Classification · 85% confidence The document is a Korean regulatory filing titled “임원ㆍ주요주주 특정증권등 소유상황보고서,” which details an officer’s (director’s) personal securities holdings and transactions, including pre- and post-ownership, changes (매도/처분), and reporting dates. It is clearly a report of insider share transactions by a company director, matching the definition for Director’s Dealing (DIRS).
2026-06-11 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Director's Dealing Classification · 85% confidence The document is a Korean regulatory insider report titled “임원·주요주주 특정증권등 소유상황보고서,” disclosing the holdings and transaction details of company executives and major shareholders (number of shares held, changes, acquisition/disposal prices, dates). This exactly matches the insider share transaction disclosure category. Therefore, it should be classified as Director’s Dealing (DIRS).
2026-06-11 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Director's Dealing Classification · 90% confidence The document is an insider share ownership report (“임원ㆍ주요주주 특정증권등 소유상황보고서”) filed with the Financial Services Commission and Korea Exchange. It details the director’s personal share and securities holdings and changes (acquisitions/disposals) by an executive. This matches the definition of Director’s Dealing (insider transactions).
2026-06-11 Korean

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