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Idemitsu Kosan Co.,Ltd. — Investor Relations & Filings

Ticker · 5019 ISIN · JP3142500002 LEI · 549300P0R46FF6DUA630 T Manufacturing
Open in API
Filings indexed 119 across all filing types
Latest filing 2025-06-10 Transaction in Own Shar…
Country JP Japan
Listing T 5019

About Idemitsu Kosan Co.,Ltd.

https://www.idemitsu.com/en/index.html

Idemitsu Kosan is an integrated energy and materials company. Its core operations encompass the refining and marketing of petroleum products through an extensive service station network, alongside the production of basic chemicals derived from its refining processes. The company's resource division develops oil, natural gas, coal, and geothermal energy assets. In parallel, Idemitsu is advancing its functional materials business, developing high-performance products such as materials for next-generation batteries. The company also manages a diverse power generation portfolio, including solar, wind, biomass, and natural gas facilities, supplying electricity to wholesale and retail customers. A key strategic focus is the transition toward carbon neutrality through the development of sustainable aviation fuel (SAF), synthetic fuels, and other low-carbon solutions.

Recent filings

Filing Released Lang Actions
自己株券買付状況報告書（法２４条の６第１項に基づくもの）
Transaction in Own Shares Classification · 100% confidence The document is titled "自己株券買付状況報告書（法24条の６第１項に基づくもの）" which translates to "Report on the Status of Treasury Stock Acquisition (Based on Article 24-6, Paragraph 1 of the Financial Instruments and Exchange Act)". This is a specific regulatory filing in Japan detailing the progress of a share repurchase program over a defined period (May 1, 2025, to May 31, 2025). This type of filing, which reports on transactions in a company's own shares, directly corresponds to the definition of 'Transaction in Own Shares' (POS). It is a detailed report, not just an announcement of a report, given the inclusion of detailed tables on acquisition status and holdings.
2025-06-10 Japanese
自己株券買付状況報告書（法２４条の６第１項に基づくもの）
Transaction in Own Shares Classification · 100% confidence The document is explicitly titled "自己株券買付状況報告書（法24条の６第１項に基づくもの）" which translates to "Report on the Status of Treasury Stock Acquisition (Based on Article 24-6, Paragraph 1 of the Act)". This report details the acquisition and processing (cancellation/disposal) of the company's own shares (treasury stock) during a specific reporting period (April 1, 2025, to April 30, 2025). This directly corresponds to the definition of a report detailing the company buying back or selling its own shares, which is classified as 'Transaction in Own Shares' (POS). The document is a full report, not an announcement of a report, and it is highly specific, ruling out the general 'RNS' fallback.
2025-05-09 Japanese
臨時報告書
Capital/Financing Update Classification · 100% confidence The document is titled "臨時報告書" (Extraordinary Report or Timely Disclosure Report) and is submitted to the Kanto Local Finance Bureau Director on April 30, 2025. The content explicitly states the reason for filing under Article 24-5, Paragraph 4 of the Financial Instruments and Exchange Act, concerning the conclusion of a loan agreement with financial covenants. This type of mandatory, timely disclosure regarding significant corporate events (like major financing/debt agreements) that don't fit standard periodic reports (10-K, IR) is best classified as a general Regulatory Filing (RNS) in this context, as it is a specific, non-periodic disclosure required by Japanese regulations, similar to a Form 8-K in the US, but without a direct equivalent in the provided list except for the general category. Given the nature of reporting a significant debt agreement, it is a regulatory filing, but since 'CAP' (Capital/Financing Update) is available and this relates directly to a loan agreement, CAP is a strong candidate. However, the structure and explicit reference to the 'Extraordinary Report' filing requirement (which often covers miscellaneous material events) leans towards RNS if it's not a standard CAP event like an issuance. Since it details a loan agreement ('金銭消費貸借契約'), which is a financing activity, 'CAP' is the most specific fit among the options for reporting on financing activities, even if it's structured as a timely disclosure. I will choose CAP as it directly relates to financing/debt.
2025-04-30 Japanese
臨時報告書
Major Shareholding Notification Classification · 100% confidence The document is explicitly titled "臨時報告書" (Extraordinary Report or Timely Disclosure Report) and is filed with the Kanto Local Finance Bureau. The content details a change in a major shareholder ("主要株主に異動がありました"), specifically reporting the shareholder's name, the change in their voting rights percentage before and after the event, and the date of the change (March 31, 2025). In the context of Japanese regulatory filings, a report detailing changes in major shareholdings (crossing ownership thresholds) corresponds directly to the definition of a Major Shareholding Notification. This aligns best with the code 'MRQ' (Major Shareholding Notification). Although 'RNS' (Regulatory Filings) is a fallback, 'MRQ' is a specific match for the content described.
2025-04-11 Japanese
自己株券買付状況報告書（法２４条の６第１項に基づくもの）
Transaction in Own Shares Classification · 100% confidence The document title is "自己株券買付状況報告書（法24条の６第１項に基づくもの）" which translates to "Report on the Status of Treasury Stock Acquisition (Based on Article 24-6, Paragraph 1 of the Financial Instruments and Exchange Act)". This document details the acquisition and disposal status of treasury stock (own shares) during a specific reporting period (March 1, 2025, to March 31, 2025). This directly corresponds to the definition of reporting on the company buying back or selling its own shares, which maps to the 'Transaction in Own Shares' category (POS). It is a detailed report, not just an announcement of a report.
2025-04-10 Japanese
自己株券買付状況報告書（法２４条の６第１項に基づくもの）
Transaction in Own Shares Classification · 100% confidence The document is titled "自己株券買付状況報告書" (Report on the Status of Treasury Stock Acquisition) and explicitly cites the legal basis as "金融商品取引法第24条の６第１項" (Financial Instruments and Exchange Act Article 24-6, Paragraph 1). This type of filing reports on the company's ongoing share repurchase activities over a specific period (February 1 to February 28, 2025). This directly corresponds to the category for reporting the company buying back or selling its own shares, which is 'Transaction in Own Shares' (POS). It is a specific regulatory report detailing share repurchase status, not a general announcement of a report (RPA) or a broad regulatory filing (RNS).
2025-03-12 Japanese

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