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Sigetronics, Inc. — Investor Relations & Filings

Ticker · 429270 ISIN · KR7429270002 KO Manufacturing
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Filings indexed 95 across all filing types
Latest filing 2026-05-15 Interim / Quarterly Rep…
Country KR South Korea
Listing KO 429270

About Sigetronics, Inc.

https://sigetronics.com/en/index.php

Sigetronics, Inc. is an Integrated Device Manufacturer (IDM) specializing in compound semiconductors. The company's core business includes the production of electrostatic discharge (ESD) protection devices and various sensors for the consumer electronics and personal computer sectors. Sigetronics has recently expanded its portfolio with the commercialization of a Gallium Nitride (GaN)-based S-band radio frequency (RF) power semiconductor lineup. This product family, featuring high-power transistors and driver products, is designed for demanding applications such as military radar, electronic warfare systems, and advanced communication equipment. The company is focused on expanding its GaN technology to serve the defense, aerospace, and next-generation 5G/6G communication markets.

Recent filings

Filing Released Lang Actions
분기보고서 (2026.03)
Interim / Quarterly Report Classification · 95% confidence The document is titled “분기보고서 (제19기) 2026년 01월 01일–2026년 03월 31일” and contains full financial statements, business descriptions, segment revenues and expenses, capital changes, and regulatory submission details to the Financial Services Commission and Korea Exchange. This is a comprehensive quarterly regulatory report, which matches the definition of an Interim / Quarterly Report (IR). Q1 2026
2026-05-15 Korean
주식등의대량보유상황보고서(일반)
Major Shareholding Notification Classification · 95% confidence The document is a “주식등의 대량보유상황보고서(일반)” filed under Korea’s Capital Markets Act Article 147 to disclose changes in large shareholdings by the major shareholder (심규환) and related parties. It details share counts, percentages, dates of holdings and transactions, and is clearly a major shareholding notification form rather than an earnings release, proxy, or annual report. Therefore, it corresponds to our "Major Shareholding Notification" category.
2026-04-17 Korean
주식등의대량보유상황보고서(일반)
Major Shareholding Notification Classification · 95% confidence The document is a statutory “주식등의 대량보유상황보고서” (Large Shareholding Report) filed under Korea’s Capital Markets Act, detailing a major shareholder’s and related parties’ holdings, percentages, and changes. It is not an earnings release, AGM material, or routine regulatory announcement, but a notification of significant shareholding levels and changes. Therefore, it matches the “Major Shareholding Notification” category.
2026-04-15 Korean
주식등의대량보유상황보고서(일반)
Major Shareholding Notification Classification · 90% confidence The document is a Korean “주식등의 대량보유상황보고서” filed under the Capital Markets Act Article 147, detailing large shareholding status, report dates, share counts and ownership percentages, and the reasons for change. This matches a Major Shareholding Notification, i.e., MRQ.
2026-03-31 Korean
정기주주총회결과
Declaration of Voting Results & Voting Rights Announcements Classification · 88% confidence The document is the formal announcement of the results of the company’s Annual General Meeting (‘정기주주총회 결과’), detailing each agenda item, voting outcomes and ratios, election of directors and related resolutions. This is exactly a Declaration of Voting Results & Voting Rights Announcement. Hence it falls under code DVA.
2026-03-26 Korean
사업보고서 (2025.12)
Annual Report Classification · 100% confidence The document is a 'Business Report' (사업보고서) for the 18th fiscal year (2025) of Sigetronics. It contains detailed company information, history, capital changes, business descriptions, product sales, and production data. This is a comprehensive annual financial and operational report, which corresponds to the 10-K filing category. FY 2025
2026-03-18 Korean

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