Disclosures.

Timely disclosures, financial results, stock-related materials and IR news from Bitcoin Japan Corporation.

5 October 2026Timely Disclosure
(Progress of Disclosed Matters) Notice Concerning Additional Purchase of Bitcoin
- 開示資料PDF · Japanese
2 October 2026Timely Disclosure
Notice Concerning Monthly Status of Conversion and Exercise of First Unsecured Convertible Bonds with Stock Acquisition Rights (with Clause for Amending Conversion Price) and Second Stock Acquisition Rights (with Clause for Amending Exercis
- 開示資料PDF · Japanese
30 September 2026Timely 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
- 開示資料PDF · Japanese
30 September 2026IR News
CEO Message: Structural Reforms and Capital Allocation
- CEO MessagePDF · English
- CEOメッセージPDF · Japanese
29 September 2026Timely Disclosure
(Update on Previously Disclosed Matter) Notice Regarding the Purchase of Bitcoin
- 開示資料PDF · Japanese
18 September 2026Timely 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
- 主要資料PDF · Japanese
17 September 2026Timely 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
- 主要資料PDF · Japanese
17 September 2026Timely Disclosure
(Progress of Disclosed Matter) Notice Concerning the Commencement of a New Business (Physical AI Business) and Change in the Priority of Allocation of the Use of Proceeds
- 主要資料PDF · Japanese
3 September 2026IR News
Notice Concerning Commencement of Legal Due Diligence on the Rare Earth Mining Project
- 主要資料PDF · Japanese
2 September 2026Timely Disclosure
Notice Regarding Large-Volume Conversion of the First Series Unsecured Convertible Bonds with Stock Acquisition Rights (with Conversion Price Adjustment Clause) Issued Through Third-Party Allotment (August 19–21, 2026)
- 主要資料PDF · Japanese
2 September 2026Timely Disclosure
Notice Regarding Large-Volume Conversion of the First Series Unsecured Convertible Bonds with Stock Acquisition Rights (with Conversion Price Adjustment Clause) Issued Through Third-Party Allotment (August 4–18, 2026)
- 主要資料PDF · Japanese
2 September 2026Timely Disclosure
Notice Regarding the Monthly Status of Conversion and Exercise of the First Series Unsecured Convertible Bonds with Stock Acquisition Rights and the Second Series Stock Acquisition Rights Issued Through Third-Party Allotment
- 主要資料PDF · Japanese
19 August 2026IR News
Notice Regarding the Filing of a Trademark Application for the "BJC AI LABS" Brand
- 主要資料PDF · Japanese
18 August 2026IR News
Notice Regarding the Filing of a Trademark Application for the "BJC ROBOTICS" Brand
- 主要資料PDF · Japanese
10 August 2026Financial ResultsFY2027 Q1
Summary of Financial Results for the First Quarter of the Fiscal Year Ending March 31, 2027 Released
- 2027年3月期第1四半期決算短信PDF · Japanese
10 August 2026Financial ResultsFY2027 Q1
Financial Highlights for the First Quarter of the Fiscal Year Ending March 31, 2027
- Financial Highlights for the First Quarter of the Fiscal Year Ending March 31, 2027PDF · English
- 2027年3月期第1四半期財務ハイライト(日本語)PDF · Japanese
3 August 2026Timely Disclosure
Notice of Payment Completion for 1st Series Unsecured Convertible Bonds with Stock Acquisition Rights (with Adjustable Conversion Price) and 2nd Series Stock Acquisition Rights (with Adjustable Exercise Price) via Third-Party Allotment
- 主要資料PDF · Japanese
16 July 2026Timely Disclosure
Notice of Issuance of 1st Series Unsecured Convertible Bonds with Stock Acquisition Rights (with Adjustable Conversion Price) and 2nd Series Stock Acquisition Rights (with Adjustable Exercise Price) via Third-Party Allotment
- 主要資料PDF · Japanese
16 July 2026Timely Disclosure
(Update on Previously Disclosed Matter) Notice Regarding the Reference Valuation of the Fund Investment in the AI Infrastructure Investment Business
- 主要資料PDF · Japanese
16 July 2026Stock Related
"Responses to Questions from Shareholders" Published
- 日本語版PDF · Japanese
- English VersionPDF · Japanese
7 July 2026Timely Disclosure
(Correction) Partial Correction to "Notice Regarding Completion of Exercise and Monthly Exercise Status of 1st Series Stock Acquisition Rights (with Adjustable Exercise Price) via Third-Party Allotment"
- 主要資料PDF · Japanese
30 June 2026Timely Disclosure
Notice Regarding Matters Concerning Controlling Shareholders, etc.
- 主要資料PDF · Japanese
30 June 2026Stock Related
CEO Message at the 122nd General Meeting of Shareholders
- Presentation SlidesPDF · English
- 投影スライドPDF · Japanese
29 June 2026Financial Results
Annual Securities Report for the Fiscal Year Ended March 31, 2026 Published
- 主要資料PDF · Japanese
29 June 2026Stock Related
Notice of Resolutions of the 122nd Annual General Meeting of Shareholders Published
- 主要資料PDF · Japanese
26 June 2026Timely Disclosure
(Update on Previously Disclosed Matter) Notice Regarding Investment in a Fund in the AI Infrastructure Investment Business
- 主要資料PDF · Japanese
8 June 2026Shareholder Meeting
Notice of Convocation of the 122nd Annual General Meeting of Shareholders Published
- 主要資料PDF · Japanese
8 June 2026Shareholder Meeting
Matters Subject to Electronic Provision Measures for the Convocation of the 122nd Annual General Meeting of Shareholders Published
- 主要資料PDF · Japanese
8 June 2026Timely Disclosure
Notice Regarding Completion of Exercise and Monthly Exercise Status of 1st Series Stock Acquisition Rights (with Adjustable Exercise Price) via Third-Party Allotment
- 主要資料PDF · Japanese
5 June 2026Timely Disclosure
Notice Regarding Changes in Directors
- 主要資料PDF · Japanese

Disclosures.

(Progress of Disclosed Matters) Notice Concerning Additional Purchase of Bitcoin

Notice Concerning Monthly Status of Conversion and Exercise of First Unsecured Convertible Bonds with Stock Acquisition Rights (with Clause for Amending Conversion Price) and Second Stock Acquisition Rights (with Clause for Amending Exercis

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

CEO Message: Structural Reforms and Capital Allocation

(Update on Previously Disclosed Matter) Notice Regarding the Purchase of Bitcoin

(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

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

(Progress of Disclosed Matter) Notice Concerning the Commencement of a New Business (Physical AI Business) and Change in the Priority of Allocation of the Use of Proceeds

Notice Concerning Commencement of Legal Due Diligence on the Rare Earth Mining Project

Notice Regarding Large-Volume Conversion of the First Series Unsecured Convertible Bonds with Stock Acquisition Rights (with Conversion Price Adjustment Clause) Issued Through Third-Party Allotment (August 19–21, 2026)

Notice Regarding Large-Volume Conversion of the First Series Unsecured Convertible Bonds with Stock Acquisition Rights (with Conversion Price Adjustment Clause) Issued Through Third-Party Allotment (August 4–18, 2026)

Notice Regarding the Monthly Status of Conversion and Exercise of the First Series Unsecured Convertible Bonds with Stock Acquisition Rights and the Second Series Stock Acquisition Rights Issued Through Third-Party Allotment

Notice Regarding the Filing of a Trademark Application for the "BJC AI LABS" Brand

Notice Regarding the Filing of a Trademark Application for the "BJC ROBOTICS" Brand

Summary of Financial Results for the First Quarter of the Fiscal Year Ending March 31, 2027 Released

Financial Highlights for the First Quarter of the Fiscal Year Ending March 31, 2027

Notice of Payment Completion for 1st Series Unsecured Convertible Bonds with Stock Acquisition Rights (with Adjustable Conversion Price) and 2nd Series Stock Acquisition Rights (with Adjustable Exercise Price) via Third-Party Allotment

Notice of Issuance of 1st Series Unsecured Convertible Bonds with Stock Acquisition Rights (with Adjustable Conversion Price) and 2nd Series Stock Acquisition Rights (with Adjustable Exercise Price) via Third-Party Allotment

(Update on Previously Disclosed Matter) Notice Regarding the Reference Valuation of the Fund Investment in the AI Infrastructure Investment Business

"Responses to Questions from Shareholders" Published

(Correction) Partial Correction to "Notice Regarding Completion of Exercise and Monthly Exercise Status of 1st Series Stock Acquisition Rights (with Adjustable Exercise Price) via Third-Party Allotment"

Notice Regarding Matters Concerning Controlling Shareholders, etc.

CEO Message at the 122nd General Meeting of Shareholders

Annual Securities Report for the Fiscal Year Ended March 31, 2026 Published

Notice of Resolutions of the 122nd Annual General Meeting of Shareholders Published

(Update on Previously Disclosed Matter) Notice Regarding Investment in a Fund in the AI Infrastructure Investment Business

Notice of Convocation of the 122nd Annual General Meeting of Shareholders Published

Matters Subject to Electronic Provision Measures for the Convocation of the 122nd Annual General Meeting of Shareholders Published

Notice Regarding Completion of Exercise and Monthly Exercise Status of 1st Series Stock Acquisition Rights (with Adjustable Exercise Price) via Third-Party Allotment

Notice Regarding Changes in Directors