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SIOS Corporation — Investor Relations & Filings

Ticker · 3744 ISIN · JP3547100002 T Telecommunications, computer programming, consultancy, computing infrastructure, and other information service activities
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Filings indexed 69 across all filing types
Latest filing 2026-03-25 Regulatory Filings
Country JP Japan
Listing T 3744

About SIOS Corporation

https://www.sios.com/en/

SIOS Corporation specializes in software and services based on open system infrastructure. The company engages in the development, sales, and support of software products, as well as contract development and operational support for information technology systems. A primary focus is on providing high availability (HA) and disaster recovery (DR) solutions that ensure IT resilience for business-critical applications. Through its core products, including LifeKeeper and DataKeeper, SIOS protects essential applications like SAP, SQL Server, and Oracle across diverse environments, including cloud, hybrid cloud, physical, and virtual infrastructures. The company assists enterprises in adopting open-source and cloud computing technologies to support their digital transformation initiatives.

Recent filings

Filing Released Lang Actions
確認書
Regulatory Filings Classification · 100% confidence The document is a 'Confirmation Letter' (確認書) filed under the Financial Instruments and Exchange Act, Article 24-4-2, Paragraph 1. It serves as an officer certification confirming the accuracy of the company's Annual Securities Report (有価証券報告書). According to the 'CERTIFICATION RULE', documents that are primarily officer certifications or attestations, even if they reference a specific report, should be classified as Regulatory Filings (RNS) rather than the report itself. FY 2025
2026-03-25 Japanese
有価証券報告書－第29期(2025/01/01－2025/12/31)
Annual Report Classification · 100% confidence The document is a Japanese '有価証券報告書' (Yuuka Shouken Houkokusho), which is the standard Japanese equivalent of an Annual Report (10-K). It contains detailed financial statements, business indicators, and corporate information for the fiscal year ending December 31, 2025. The document structure, including the cover page and the 'Corporate Information' section, confirms it is the official annual filing. FY 2025
2026-03-25 Japanese
確認書
Report Publication Announcement Classification · 100% confidence The document is a 'Confirmation Letter' (Kakunin-sho) filed under the Financial Instruments and Exchange Act, specifically confirming the accuracy of the Interim Report (Hankishokokusho) for the period ending June 30, 2025. As this is a regulatory filing confirming the contents of an interim report rather than the interim report itself, and it does not fit into the specific categories of financial statements or management reports, it is classified as a Regulatory Filing (RNS).
2025-08-08 Japanese
半期報告書－第29期(2025/01/01－2025/12/31)
Interim / Quarterly Report Classification · 100% confidence The document is a '半期報告書' (Semi-Annual Report) for SIOS Corporation, covering the period from January 1, 2025, to June 30, 2025. It contains detailed financial statements, management analysis, and audit review information, which aligns with the definition of an Interim/Quarterly Report (IR). H1 2025
2025-08-08 Japanese
臨時報告書
AGM Information Classification · 100% confidence The document is titled with Japanese characters indicating it is a '臨時報告書' (Extraordinary Report) submitted to the Kanto Local Finance Bureau. The content explicitly details the resolutions passed at the Annual General Meeting ('定時株主総会') held on March 27, 2025, including the election of directors and the voting results (votes for, against, abstentions) for each proposal. This structure—reporting the results of a shareholder meeting—aligns perfectly with the definition of 'Declaration of Voting Results & Voting Rights Announcements' (DVA). Although it relates to an AGM, the primary focus is the official voting outcome report, not the presentation materials (AGM-R).
2025-03-28 Japanese
確認書
Audit Report / Information Classification · 95% confidence The document is extremely short (586 characters) and contains a header section typical of Japanese regulatory filings, specifically mentioning '有価証券報告書' (Annual Securities Report, equivalent to 10-K in structure but filed under Japanese law) and a confirmation statement ('確認書') signed by the CEO regarding the appropriateness of the contents of the Annual Securities Report for the fiscal year ending December 31, 2024. This document is not the full Annual Report (10-K) itself, but rather a formal confirmation or certification related to it, filed with the Kanto Local Finance Bureau Director. Given the options, this confirmation document is a specific regulatory filing that doesn't fit perfectly into the main report categories (like 10-K or IR). However, since it is a formal certification related to the annual filing, and it is not an announcement of a report release (RPA), the most appropriate general category for specific regulatory confirmations that aren't explicitly defined elsewhere is 'Regulatory Filings' (RNS). If a specific code for 'Annual Report Certification' existed, it would be preferred, but RNS serves as the best fit among the provided choices for a specific, short regulatory confirmation document. FY 2024
2025-03-28 Japanese

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