Information for shareholders.
Bitcoin Japan Corporation is listed on the Tokyo Stock Exchange under Securities Code 8105. This page brings together stock information, investment portfolio, filings, and governance — backed by a commitment to quarterly investor relations.
At a glance.
Figures as disclosed through the Company's timely disclosure (TDnet) filings.
- Securities Code
- 8105
- Listing
- Tokyo Stock Exchange
- Capital Deployed (FY2026)
- ¥3.12B
- Completed Investments
- SpaceX · Figure AI
TSE: 8105.
Share price for Bitcoin Japan Corporation, updated through the trading session.
Last price
Latest disclosures.
Timely disclosures, financial results, stock-related materials and other investor announcements.
- Timely Disclosure
Notice Regarding the Implementation of Structural Reforms (Including Rationalization Measures Such as Workforce Reductions) to Improve Profitability of Existing Businesses in the Group and Expected Recording of Extraordinary Losses
- IR News
CEO Message: Structural Reforms and Capital Allocation
- Timely Disclosure
(Update on Previously Disclosed Matter) Notice Regarding the Purchase of Bitcoin
- Timely Disclosure
(Progress of Disclosed Matter) Notice Concerning the Commencement of New Businesses (Bitcoin Treasury and Bitcoin-Related Asset Management Business) at a Subsidiary, etc. and the Purchase of Bitcoin
- Timely Disclosure
Notice Concerning Large-Scale Conversion of the 1st Series Unsecured Convertible Bond-type Bonds with Stock Acquisition Rights (with Conversion Price Reset Clause) Issued by Way of Third-Party Allotment
Operating to global standards.
Cross-Border Board
An upgraded, internationally experienced cross-border board provides oversight and strategic direction.
Enhanced Internal Controls
Our J-SOX control framework has been enhanced to support digital-asset, AI, and overseas activities.
Crypto-Capable Auditor
A new external auditor with digital-asset, AI, and cross-border audit capabilities.
Risk Management
Risk is embedded in the strategy: institutional-grade Bitcoin custody, IC approval for pre-IPO positions, disciplined diligence, and a CFO hedging policy.