According to Galaxy Data, 11.1 Million Bitcoin Have No Known Owner

More than 11 million Bitcoins remain in wallet addresses that researchers cannot link to known owners. This highlights how much of the cryptocurrency’s supply remains difficult to attribute. According to an October snapshot from Galaxy, around 11.1 million BTC, or roughly 55% of Bitcoin’s total supply, is classified as unattributed.

The finding comes as Bitcoin gains wider acceptance among institutional investors, including funds and financial firms. Despite this growth, a large share of BTC remains in addresses whose owners have not been publicly identified.

Why More Than Half of Bitcoin Remains Unattributed

Bitcoin transactions are recorded on a public blockchain, allowing anyone to view wallet addresses and their balances. However, a wallet address does not automatically reveal the identity of the person controlling it.

Research firms such as Galaxy analyze blockchain activity and connect addresses to known entities, including exchanges, funds, and major holders. Coins that cannot be linked confidently to an identified owner may therefore be classified as unattributed.

This does not mean the Bitcoin is necessarily lost or abandoned. The coins could belong to individual investors, institutions that researchers have not identified, or holders who have lost access to their wallets.

Self-Custody and the Mystery of Unattributed Bitcoin

Galaxy’s head of research, Alex Thorn, pointed to the figures as evidence that self-custody remains widespread. Self-custody allows Bitcoin holders to control their assets directly through private keys rather than relying on an exchange or fund. Xapo Bank also highlighted the role of retail investors, who were participating in Bitcoin long before institutional adoption gained momentum.

However, an unattributed wallet does not necessarily mean its Bitcoin is lost. Some wallets may belong to long-term holders who rarely move their assets or entities whose ownership has not been publicly identified. Others may contain Bitcoin whose owners have lost access to their private keys. While blockchain data makes transactions visible, it cannot always reveal who controls a wallet. The figures therefore show how much Bitcoin remains unattributed, but they do not establish how much is permanently inaccessible.

What This Means for Bitcoin Ownership

The findings highlight an important distinction between blockchain transparency and personal identity. Bitcoin transactions can be publicly visible without revealing who owns the addresses involved.

As institutional participation grows, blockchain analytics firms will continue trying to identify wallet ownership and track large holdings. However, the identity of many Bitcoin holders may remain unknown unless reliable information connects their wallets to them.

For the market, the figures offer a reminder that Bitcoin ownership is more difficult to measure than simply counting publicly identified exchange and institutional wallets. The 11.1 million BTC estimate shows how much remains unattributed, but it does not tell us exactly how those coins are distributed or how many are still accessible.