Idemitsu Kosan Co.,Ltd.
Idemitsu Kosan Co.,Ltd. (IDKOY) SEC Filings & 10-K Annual Reports
SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.
SEC EDGAR · data.sec.gov · CIK 0001380365 · IDKOY · OTC · as of Jun 9, 2026
Filing snapshot
Source: SEC EDGAR (data.sec.gov) · CIK 0001380365 · Updated hourly · Not investment advice
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SEC Filing History
About SEC Filings & 10-K Annual Reports
Idemitsu Kosan Co.,Ltd. (OTC: IDKOY) has submitted 43 documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 2012. As a Energy sector company with CIK 0001380365, all filings are publicly accessible via the EDGAR database at no cost.
The annual 10-K report is Idemitsu Kosan Co.,Ltd.'s most comprehensive regulatory disclosure. The most recent Idemitsu Kosan Co.,Ltd. 10-K was filed on — for fiscal year ending —. Historical IDKOY 10-K annual reports are available from 2006 through —.
Investors researching Idemitsu Kosan Co.,Ltd. SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.
Frequently Asked Questions
IDKOY SEC Filings · 8 questionsIdemitsu Kosan Co.,Ltd. (IDKOY) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 43 filings and access original documents at no cost. Idemitsu Kosan Co.,Ltd.'s CIK is 0001380365.