Capital B Secures €15.2 Million to Expand Bitcoin Treasury, Backed by Adam Back
European Bitcoin treasury company Capital B has raised €15.2 million (approximately $17.8 million) through a private placement, signaling a strategic push to compete with U.S.-based Bitcoin accumulators. The funding round saw significant participation from asset manager TOBAM and Blockstream founder Adam Back, reinforcing the growing appetite for corporate Bitcoin treasury vehicles outside the United States.
Strategic Funding and Warrant Structure
The Paris-listed firm priced its shares at €0.66 each, representing a 1.51% premium over its May 8 closing price. To attract institutional interest and secure future liquidity, Capital B bundled these shares with four share subscription warrants. This structure provides a pathway for significant future capital inflows; if all warrants are fully exercised, the company could unlock an additional €99.1 million.

The warrants are tiered across three different pricing levels to align with the company’s growth trajectory:
- Two warrants are priced at an exercise price of €0.86.
- One warrant is set at €1.12.
- One warrant is priced at €1.46.
the company has included an accelerated exercise provision. This allows for a faster conversion window if the stock’s volume-weighted average price remains 30% above the relevant strike price for 20 consecutive trading days.
The Path to 3,125 Bitcoin
Capital B adopted a “Bitcoin standard” in November 2024 and has since focused on steadily expanding its reserves through share issuance. As of late April, the firm held roughly 2,943 BTC, placing it among the 25 largest corporate holders of the cryptocurrency.
With the fresh proceeds from this latest raise and ongoing operations, Capital B aims to acquire an additional 182 Bitcoin. This move would bring the company’s total potential holdings to 3,125 BTC, further strengthening its balance sheet and market position as a leading European Bitcoin treasury.
Adam Back’s Growing Influence in European Treasuries
The involvement of Adam Back is particularly notable, as it marks his second investment in Capital B within a single week. On May 4, Back subscribed to €1.1 million in warrants, which increased his fully diluted stake in the company to approximately 9.97%.
Back’s commitment highlights a broader trend of industry leaders backing Bitcoin treasury vehicles in Europe. His strategy extends beyond Capital B; he previously committed 30,000 BTC to the Bitcoin Standard Treasury, a SPAC structure linked to Cantor Fitzgerald with a valuation of roughly $4 billion.
Key Takeaways: Capital B Funding Round
| Detail | Value/Metric |
|---|---|
| Total Raised | €15.2 Million (~$17.8 Million) |
| Share Price | €0.66 (1.51% premium to May 8 close) |
| Target BTC Holdings | 3,125 BTC |
| Potential Future Capital | €99.1 Million (via full warrant exercise) |
| Key Investors | Adam Back, TOBAM |
Looking Ahead: The Shift Toward Corporate BTC Adoption
Capital B’s aggressive accumulation strategy reflects a shifting corporate landscape where Bitcoin is increasingly viewed as a primary treasury reserve asset rather than a speculative investment. By utilizing private placements and complex warrant structures, Capital B is creating a blueprint for how European firms can scale their digital asset holdings while maintaining access to capital markets.
As the company moves toward its 3,125 BTC goal, the industry will be watching to see if other European entities follow suit, potentially creating a regional counterbalance to the Bitcoin accumulation trends seen in the U.S. Market.