Capital B bitcoin treasury raise could lift holdings to 3,125 BTC

The Capital B bitcoin treasury raise is bringing in fresh institutional money at a scale that could push the company’s Bitcoin holdings above 3,000 BTC. Capital B said it raised €15.2 million, or $17.8 million, through a private placement that included investors such as Adam Back and TOBAM. According to the company, the new funds could support the purchase of another 182 BTC.

If that happens, Capital B said total holdings would rise to 3,125 BTC from 2,943 BTC, based on figures it cited from earlier disclosures. For a company built around a Bitcoin treasury model, that projected jump is the core story.

The financing also gives Capital B more room to pursue the strategy it has emphasized since rebranding from The Blockchain Group in July 2025: using capital markets to accumulate more Bitcoin over time. More importantly, the deal shows that large investors are still willing to fund that approach.

Capital B raises $17.8 million from institutional investors

Capital B said the €15.2 million raise came through a private placement reserved for institutional investors in the U.S., Europe, and other jurisdictions. Among the participants were Blockstream CEO Adam Back and French asset manager TOBAM.

The placement was subscribed by global investors, with Maxim Group acting as lead placement agent and Marex as co-manager. In turn, the deal adds another public example of institutional support for a listed company using equity markets to expand its Bitcoin treasury.

That matters because the Capital B bitcoin treasury raise is not just another funding round. Rather, it is a test of whether public-market Bitcoin accumulation strategies can keep attracting capital even when they rely on share issuance and warrants, not simple spot buying.

How the Capital B warrants were structured

Capital B issued 23 million shares with attached warrants at €0.66 per ABSA. Net proceeds are expected to come in at about €14.4 million, or roughly $17 million, after fees.

The warrant package is a major part of the financing structure. Each newly issued share carries four warrants spread across three exercise price levels:

• Warrant 2026-03: two instruments exercisable at €0.86 per share
• Warrant 2026-04: exercisable at €1.12 per share
• Warrant 2026-05: exercisable at €1.46 per share

If all of those warrants are exercised, Capital B said it could raise an additional €99.1 million through the issuance of more than 92 million new shares. As a result, the transaction creates both immediate funding and a much larger potential funding channel later.

For a company focused on Bitcoin accumulation, that structure extends the possible runway for treasury growth beyond the initial placement. At the same time, it puts more attention on management’s stated metric: bitcoin held per fully diluted share.

What the raise could mean for Bitcoin holdings expansion

Capital B said the net proceeds, together with existing operations, could help finance the purchase of another 182 BTC. If that purchase goes ahead, the company said its Bitcoin holdings would increase to 3,125 BTC from 2,943 BTC.

That makes the Capital B bitcoin treasury raise more than a balance-sheet update. It is a direct extension of the company’s central bet that owning more Bitcoin can drive long-term value creation.

The model is simple in outline: raise capital, buy BTC, and aim to increase the amount of Bitcoin backing each fully diluted share over time. In practice, however, the model depends on how efficiently Capital B can keep adding BTC while managing the effects of new share issuance and warrants.

Adam Back investment adds to a growing position

The Adam Back investment was not a one-off. Earlier in May, Capital B disclosed that Back subscribed to 10 million warrants worth €1.1 million, or $1.28 million, with each warrant carrying a share purchase right at €0.84.

Following the latest transaction, Capital B said Back is expected to control 13.43% of the company on an ordinary basis. Blockstream Capital Partners, advised by Back, would hold 14.42%, while TOBAM’s ownership would rise to 4.20% after completion of the placement.

Notably, that concentration of support highlights repeat conviction from investors already familiar with Bitcoin-native business models. It also gives Capital B closer alignment with backers who understand and appear willing to support an aggressive Bitcoin holdings expansion strategy.

Why Adam Back and TOBAM matter in the Capital B bitcoin treasury raise

Back’s continued participation stands out because it reinforces Capital B’s position in the corporate Bitcoin treasury space. Meanwhile, TOBAM’s involvement adds another institutional name to the shareholder base. Together, those investors give the financing added credibility within Bitcoin-focused markets.

Why Capital B’s treasury model is drawing attention

Capital B sits within a broader shift in how some listed companies approach Bitcoin exposure. Instead of treating BTC as a side asset, the company has built its identity around treasury accumulation.

Since rebranding in July 2025, Capital B has made that strategy explicit. Its stated aim is to increase the amount of bitcoin held per fully diluted share over time. Because of this, every capital raise, warrant structure, and share issuance becomes part of the same larger test.

Company filings also showed the impact on existing holders. Capital B said an investor holding 1% of the company before the issuance would see that stake fall to 0.92% on a non-diluted basis after the placement closes. With full warrant exercise, the same holding would drop to 0.71%.

That tension is likely to remain central. Capital B now has more money to buy BTC, and potentially much more if the Capital B warrants are exercised later. Even so, the market will be watching whether future Bitcoin treasury growth stays ahead of dilution as the company pushes deeper into its Bitcoin-first model.