Capital B Secures $2.5 Million Capital Increase Fully Subscribed by Adam Back

Puteaux, August 18, 2025 – Capital B, a European Bitcoin treasury management company listed on Euronext Growth Paris, has announced a capital increase of approximately $2.57 million (€2.2 million), fully subscribed by cryptographer and Blockstream founder Adam Back.

Strengthening Bitcoin Holdings

The new capital injection is expected to finance the purchase of around 17 additional BTC, potentially raising the company’s total holdings to 2,218 BTC. Capital B emphasized that the move aligns with its strategy of steadily expanding its Bitcoin-per-share metrics on a fully diluted basis.

Conversion of Fulgur Ventures Instruments

Alongside the capital raise, the company confirmed the final conversion of 4,760,000 OCA B-01 instruments held by Fulgur Ventures into 8,750,000 ordinary shares. This step further consolidates its treasury-focused model while broadening equity distribution.

Adam Back’s Support for Bitcoin Treasury Firms

Adam Back, renowned cryptographer and co-founder of Blockstream, has recently increased his support for Bitcoin treasury companies, including H100, BSTR, and Capital B. His significant financial backing is intended to strengthen their ability to acquire and hold Bitcoin as part of long-term corporate strategies.