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Tsubota Laboratory Incorporated — Investor Relations & Filings

Ticker · 4890 ISIN · JP3535700003 T Professional, scientific and technical activities
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Filings indexed 35 across all filing types
Latest filing 2025-11-12 Regulatory Filings
Country JP Japan
Listing T 4890

About Tsubota Laboratory Incorporated

https://tsubota-lab.com/en/

Tsubota Laboratory Incorporated is a research and development company that originated as a startup from Keio University. It is engaged in the creation of pharmaceuticals and medical devices. The company's primary focus is on ophthalmology, developing solutions for conditions such as myopia, dry eye, and presbyopia. Additionally, it explores treatments for central nervous system (CNS) disorders and brain diseases. The corporate strategy centers on out-licensing its developed pipelines to commercial partners. A notable pipeline is a therapeutic candidate designed to curtail the progression of myopia.

Recent filings

Filing Released Lang Actions
確認書
Regulatory Filings Classification · 1% confidence The document is a 'Confirmation Letter' (確認書) filed under the Financial Instruments and Exchange Act, Article 24-5-2, Paragraph 1. It serves as an officer certification confirming the accuracy of a previously filed semi-annual report. According to the 'CERTIFICATION RULE', documents that are primarily officer certifications or attestations, even if they reference a specific report type, should be classified as Regulatory Filings (RNS) rather than the report itself. H1 14
2025-11-12 Japanese
半期報告書－第14期(2025/04/01－2026/03/31)
Interim / Quarterly Report Classification · 1% confidence The document is a '半期報告書' (Semi-Annual Report) for '株式会社坪田ラボ' (Tsubota Laboratory Incorporated) covering the period from April 1, 2025, to September 30, 2025. It contains detailed financial statements (balance sheets, etc.), management analysis, and audit information. According to the filing definitions, a comprehensive financial report for a period shorter than a full fiscal year (like a half-year report) containing actual financial statements is classified as an Interim / Quarterly Report (IR). H1 2025
2025-11-12 Japanese
臨時報告書
AGM Information Classification · 1% confidence The document is titled '臨時報告書' (Extraordinary Report) and explicitly states in Section 1 that it is being submitted based on Article 24-5, Paragraph 4 of the Financial Instruments and Exchange Act and related regulations, following the resolutions passed at the Annual General Meeting (AGM) held on June 25, 2025. Section 2 details the resolutions, specifically the election of directors and auditors, along with the voting results (votes for, against, abstentions). This content perfectly matches the definition of reporting the results of a shareholder vote, which corresponds to the Declaration of Voting Results & Voting Rights Announcements (DVA). Although it relates to an AGM, the primary purpose is reporting the *results* of the vote, not providing AGM materials (AGM-R) or proxy information (PSI).
2025-06-27 Japanese
確認書
Audit Report / Information Classification · 1% confidence The document is extremely short (717 characters) and contains a header section typical of Japanese regulatory filings, specifically mentioning "【提出書類】確認書" (Filing Document: Confirmation Document) and referencing the Financial Instruments and Exchange Act ("金融商品取引法"). The core content confirms that the Representative Director and CFO have verified the appropriateness of the contents of the company's 13th period Securities Report (有価証券報告書) for the fiscal year ending March 31, 2025. This type of document, which is a formal confirmation statement regarding the accuracy of a primary report (like a 10-K equivalent), is often filed separately. Given the options, it is not the full Annual Report (10-K), nor is it a standard Earnings Release (ER) or Interim Report (IR). It is a specific regulatory confirmation. Since there is no direct code for a 'Confirmation Document' regarding a Securities Report, and it is a formal regulatory filing, the most appropriate general category among the provided specific codes is 'Regulatory Filings' (RNS), as it is a mandatory submission related to compliance, or potentially an Audit Report/Information (AR) if it were related to the audit opinion, but this is a management certification. Given the context of Japanese filings, this confirmation document often accompanies the main filing. Since it is a specific regulatory compliance document that doesn't fit the other specific categories (like DIV, DIRS, CT), RNS is the best fit as a general regulatory submission. FY 2025
2025-06-26 Japanese
内部統制報告書－第13期(2024/04/01－2025/03/31)
Governance Information Classification · 1% confidence The document contains a header section explicitly stating the filing document type as "内部統制報告書" (Internal Control Report) under the "【提出書類】" field. It also cites 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"). The content discusses the framework, scope, criteria, and results of the assessment of internal controls over financial reporting, which is characteristic of an Internal Control Report, often filed alongside the annual report (10-K) or as a standalone disclosure in Japan. In the provided classification list, there is no direct equivalent for a standalone 'Internal Control Report'. However, this document is a comprehensive report detailing internal controls and audit principles, which aligns most closely with the scope of an 'Audit Report / Information' (AR), as it deals with the assessment and assurance of financial reporting integrity, even if it's specifically about internal controls rather than an external auditor's opinion on the financial statements themselves. It is a formal, comprehensive report, not a brief announcement (ruling out RPA/RNS). Given the options, 'AR' (Audit Report / Information) is the best fit for a formal report detailing internal control assessment standards and results.
2025-06-26 Japanese
有価証券報告書－第13期(2024/04/01－2025/03/31)
Annual Report Classification · 1% confidence The document is a Japanese 'Yuka Shoken Hokokusho' (Securities Report), which is the Japanese equivalent of a 10-K. It contains comprehensive financial statements, business descriptions, management analysis, and corporate information for the fiscal year ending March 31, 2025. The document header explicitly identifies it as '有価証券報告書' (Securities Report) filed under the Financial Instruments and Exchange Act. FY 2025
2025-06-26 Japanese

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