Bitcoin Pioneer Adam Back Invests €7.6 Million in Capital B Treasury

Capital B has secured €7.6 million in new funding from Bitcoin pioneer Adam Back to aggressively expand its digital asset reserves. The move signals a deepening commitment by the Paris-based company to utilize its public listing as a vehicle for long-term Bitcoin accumulation.

According to company filings, the funds were raised through a private placement with shares priced at €0.58 each, representing a 15.4% premium over the previous day's closing price. Capital B intends to use the capital to purchase an additional 376 BTC, bringing the company's total holdings to 3,521 BTC. In an official statement, Capital B noted that the funds will primarily strengthen the balance sheet by treating Bitcoin as a long-term reserve asset.

The European Treasury Model

Capital B, listed on Euronext Growth Paris, is explicitly positioning itself as a European counterpart to the U.S.-based MicroStrategy. This strategy involves issuing equity to raise capital specifically for the purchase of Bitcoin, effectively turning the company's stock into a proxy for the cryptocurrency.

This latest injection is part of a broader partnership with Adam Back, the CEO of Blockstream and a figure cited in the original Bitcoin white paper. Back has become a cornerstone investor for the firm, having previously participated in a €15.2 million investment round in May 2026. The company's current portfolio includes 3,145 BTC with an average purchase price of 90,352 euros.

Market Implications and Risks

This expansion highlights a growing trend of institutional-style Bitcoin accumulation within European public markets. By leveraging a public listing to acquire BTC, Capital B is attempting to institutionalize the asset class for European investors who may not have direct exposure to the cryptocurrency.

However, the strategy carries inherent risks. The reliance on private placements and the issuance of shares at a premium underscore the costs of executing this model on the Euronext Growth Paris, which lacks the deep liquidity of the Nasdaq. Furthermore, the company's average purchase price of 90,352 euros per Bitcoin creates a significant benchmark that the market must sustain to avoid latent losses on the balance sheet.

Future Outlook

Investors are now watching to see if other European listed firms will adopt similar treasury strategies to hedge against fiat currency volatility. While the core of the expansion is confirmed, the full impact of the subscription warrants included in Back's investment remains a point of interest, as they could further shift the company's ownership structure. The primary metric for success will be whether Capital B can continue to attract high-profile backers to scale its reserves without excessively diluting existing shareholders.