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ALT Co.,Ltd. — Investor Relations & Filings

Ticker · 172670 ISIN · KR7172670002 KO Manufacturing
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Filings indexed 133 across all filing types
Latest filing 2026-05-15 Interim / Quarterly Rep…
Country KR South Korea
Listing KO 172670

About ALT Co.,Ltd.

https://www.alt-s.kr/eng/

ALT Co., Ltd. is a company specializing in the back-end processing of non-memory semiconductors. It provides professional testing solutions and services for various integrated circuits, including System-on-Chip (SoC) and Display Driver ICs (DDI). The company serves a global client base of fabless and integrated device manufacturer (IDM) customers, focusing on delivering high-quality product testing.

Recent filings

Filing Released Lang Actions
분기보고서 (2026.03)
Interim / Quarterly Report Classification · 98% confidence The document is titled “분기보고서” (quarterly report) covering the 1st quarter of 2026 with detailed sections including business overview, financial statements, notes, management analysis, audit opinion, and other mandatory disclosures. It contains substantive financial data and analysis rather than merely announcing or previewing results. This matches an Interim/Quarterly Report (IR) classification. Q1 2026
2026-05-15 Korean
유형자산취득결정(자율공시)
Regulatory Filings Classification · 78% confidence The document is a voluntary regulatory disclosure in Korean detailing the company's decision to acquire tangible assets (semiconductor test machinery) with specifics on cost, board resolution, counterparty, and timing. It is not an earnings release, financial report, management change, dividend notice, share issue, M&A, or any other defined category. Therefore it falls under the fallback category for miscellaneous regulatory filings.
2026-05-11 Korean
주식등의대량보유상황보고서(일반)
Major Shareholding Notification Classification · 100% confidence The document is titled '주식등의 대량보유상황보고서' which translates to 'Report on Large Shareholding Status'. It contains detailed information about share ownership, changes in shareholding, and related contractual agreements. The document references specific dates and shareholding percentages, and it is addressed to regulatory bodies such as the Financial Services Commission and the Korea Exchange. This type of filing corresponds to notifications about major shareholding changes or disclosures of significant share ownership levels. It is not an annual report, earnings release, or management report, nor is it a proxy statement or voting result announcement. The content matches the definition of a Major Shareholding Notification (MRQ). The document length is sufficient and contains substantive data, not just an announcement or certification, so it is not RPA or RNS.
2026-05-04 Korean
정기주주총회결과
Declaration of Voting Results & Voting Rights Announcements Classification · 93% confidence The document reports the outcomes of the company’s 23rd regular general shareholders’ meeting, including vote counts and percentages for each agenda item, appointment resolutions, and approval of financial statements. This aligns with the definition of a Declaration of Voting Results & Voting Rights Announcement (DVA), which covers official results from shareholder votes at any general meeting.
2026-03-31 Korean
사업보고서 (2025.12)
Audit Report / Information Classification · 95% confidence The document is a standalone consolidated audit report (“연결감사보고서”) issued by an external accounting firm for the periods ending December 31, 2025 and 2024, containing the auditor’s opinion, core audit matters, auditor and management responsibilities, and the audited consolidated financial statements with notes. It is not the full Annual Report nor an announcement of a filing, but a dedicated audit report. This matches the definition of an Audit Report / Information. FY 2025
2026-03-23 Korean
[기재정정]주주총회소집공고
Regulatory Filings Classification · 62% confidence The document is a correction notice (“정정신고”) for a shareholders’ meeting convocation (“주주총회소집공고”), including revised financial statements agenda for approval. It is not the full Annual Report or audit report, nor is it a post‐meeting voting result. It is primarily a regulatory announcement to shareholders of an upcoming AGM. None of the more specific categories (e.g., earnings release, board change, dividend, share issue, proxy statement in the US context) perfectly match a Korean convocation notice, so the best fit under our taxonomy is the general Regulatory Filing category (RNS).
2026-03-23 Korean

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