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

Ticker · 5019 ISIN · JP3142500002 LEI · 549300P0R46FF6DUA630 T Manufacturing
Open in API
Filings indexed 116 across all filing types
Latest filing 2026-05-12 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 · 93% confidence The document is titled “自己株券買付状況報告書” and prepared under Financial Instruments and Exchange Act Article 24-6. It details the number of shares repurchased, acquisition dates, amounts, disposal (cancellation), and current holdings—exactly matching a share buyback/transaction in own shares report. This corresponds to the “Transaction in Own Shares” category.
2026-05-12 Japanese
訂正発行登録書
Regulatory Filings
2026-04-30 Japanese
臨時報告書
Regulatory Filings
2026-04-30 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 · 95% confidence The document is titled “自己株券買付状況報告書” and references Financial Instruments and Exchange Act Article 24-6(1). It details the status of the company’s own share repurchases (dates, quantities, amounts). This is a direct report of transactions in its own shares (treasury stock buyback), matching Filing Category 29 (Transaction in Own Shares – POS).
2026-04-13 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 a '自己株券買付状況報告書' (Report on Status of Repurchase of Own Shares) filed under Article 24-6, Paragraph 1 of the Financial Instruments and Exchange Act of Japan. It details the company's share buyback activity for the period of February 2026. This document type specifically tracks the company's transactions in its own shares, which aligns perfectly with the 'Transaction in Own Shares' (POS) category.
2026-03-11 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 is a '自己株券買付状況報告書' (Report on Status of Purchase of Own Shares) filed under Article 24-6, Paragraph 1 of the Financial Instruments and Exchange Act of Japan. It details the company's share repurchase activity for the period of January 2026. This specific regulatory filing type corresponds to the 'Transaction in Own Shares' category.
2026-02-10 Japanese

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