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eSOL Co.,Ltd. — Investor Relations & Filings

Ticker · 4420 ISIN · JP3130650009 T Telecommunications, computer programming, consultancy, computing infrastructure, and other information service activities
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Filings indexed 51 across all filing types
Latest filing 2026-03-30 Regulatory Filings
Country JP Japan
Listing T 4420

About eSOL Co.,Ltd.

https://www.esol.co.jp/

eSOL is a provider of real-time software platforms for embedded and edge computing, specializing in solutions for mission-critical systems that demand high performance, safety, and security. The company's core products include eMCOS®, a high-performance, scalable real-time operating system (RTOS) and hypervisor platform, and the eT-Kernel™ RTOS, which has a proven track record in safety-critical applications. eSOL utilizes a full-stack engineering approach to support the development of Software Defined anything (SDx), with a strong focus on Software Defined Vehicles (SDV). This approach provides comprehensive solutions spanning the OS, middleware, and applications. The company's offerings are complemented by integrated development tools, middleware, and professional engineering services. eSOL actively contributes to global standards, including AUTOSAR and SOAFEE, to facilitate interoperable and scalable system development for the automotive, industrial, medical, and aerospace markets.

Recent filings

Filing Released Lang Actions
確認書
Regulatory Filings Classification · 100% confidence The document is titled '確認書' (Confirmation Letter) and explicitly states it is filed under the Financial Instruments and Exchange Act. It serves as an officer certification regarding 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 should be classified as Regulatory Filings (RNS), even if they reference a specific report type. FY 2025
2026-03-30 Japanese
有価証券報告書－第51期(2025/01/01－2025/12/31)
Annual Report Classification · 100% confidence The document is a Japanese 'Yuka Shoken Hokokusho' (Securities Report), which is the Japanese equivalent of a 10-K. It contains the standard regulatory header, fiscal year information (第51期, 2025-01-01 to 2025-12-31), and extensive XBRL tagging data typical of a comprehensive annual financial filing submitted to the Kanto Local Finance Bureau. FY 2025
2026-03-30 Japanese
確認書
Report Publication Announcement Classification · 100% confidence The document is a 'Confirmation Letter' (確認書) filed under the Financial Instruments and Exchange Act, specifically accompanying a semi-annual report (第２四半期報告書). It confirms the accuracy of the semi-annual report contents for the period ending June 30, 2025. Since it is a regulatory filing confirming the validity of a report rather than the report itself, and it does not fit into specific categories like 10-K or IR, it is classified as a Regulatory Filing (RNS).
2025-08-08 Japanese
半期報告書－第51期(2025/01/01－2025/12/31)
Interim / Quarterly Report Classification · 100% confidence The document is a '第２四半期報告書' (Second Quarter Report) for eSOL Co., Ltd., covering the period from January 1, 2025, to June 30, 2025. It contains detailed financial statements, including the balance sheet, income statement, and cash flow statement, as well as management analysis. This fits the definition of an Interim/Quarterly Report (IR) as it provides comprehensive financial data for a period shorter than a full fiscal year. H1 2025
2025-08-08 Japanese
有価証券届出書（参照方式）
Capital/Financing Update Classification · 98% confidence The document is a '有価証券届出書' (Securities Registration Statement) filed with the Kanto Local Finance Bureau by eSOL Co., Ltd. on August 8, 2025. It details a '株式交付' (Share Delivery/Stock-for-Stock Exchange) transaction to acquire KMC Holdings. This type of regulatory filing, which outlines the issuance of shares for an acquisition, falls under the category of M&A Activity (TAR) as it pertains to the takeover/acquisition process.
2025-08-08 Japanese
内部統制報告書－第50期(2024/01/01－2024/12/31)
Governance Information Classification · 100% confidence The document is explicitly titled "内部統制報告書" (Internal Control Report) in the cover section and throughout the text. It references the legal basis as Article 24-4-4, Paragraph 1 of the Financial Instruments and Exchange Act (金融商品取引法第24条の４の４第１項), which mandates the filing of an Internal Control Report in Japan. The content discusses the framework, scope, criteria, and conclusion of the assessment of internal controls over financial reporting. This directly corresponds to the definition of a formal regulatory report concerning internal controls, which is best classified under the general 'Audit Report / Information' (AR) category, as it is a specific report on controls rather than a general annual report (10-K) or a brief announcement (RPA/RNS). Given the specific nature of the document being a formal, comprehensive report on internal controls, AR is the most appropriate fit among the provided options.
2025-03-31 Japanese

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