Metaplanet Becomes Fourth-Largest Corporate Bitcoin Holder After $600M Purchase

Japanese Firm Expands Bitcoin Treasury With Over 30,000 BTC

Japanese investment giant Metaplanet has secured its place among the world’s largest corporate Bitcoin holders after acquiring an additional 5,268 BTC, worth roughly $600 million at current prices.

The company, listed on the Tokyo Stock Exchange, revealed on Wednesday that its total Bitcoin reserves now stand at 30,823 BTC. This strategic move pushed Metaplanet to the fourth-largest corporate holder of Bitcoin, surpassing the Bitcoin Standard Treasury Company, according to BitcoinTreasuries.NET data.

The purchase was made at an average price of 17.39 million yen (about $116,000) per coin, bringing the firm’s total Bitcoin holdings to an estimated $3.6 billion. Metaplanet’s average acquisition cost per BTC sits at around $108,000, leaving the firm with an unrealized profit of more than 7.5%.

Metaplanet’s Bitcoin Yield Surged Over 300% in 2024

Metaplanet began integrating Bitcoin into its balance sheet in April 2024 and quickly accelerated its accumulation strategy.

Metaplanet’s Bitcoin Yield jumped to over 300% late 2024. Source: Metaplanet

According to filings, the company’s BTC Yield – which measures the change in Bitcoin holdings per fully diluted share – soared to 309.8% by late 2024. This indicated that each share provided more than three times the Bitcoin exposure compared to when the strategy launched.

By 2025, the metric stabilized at around 33%, reflecting a slower pace of per-share growth as the company continued to acquire Bitcoin at scale. The adjustment highlights a shift from aggressive early accumulation to a more measured, long-term holding strategy.

Over 1 Million Bitcoin Now Held by Public Companies

The rise of Metaplanet reflects a broader trend of institutional adoption of Bitcoin. Data from BitcoinTreasuries.NET shows that public companies collectively hold more than 1 million BTC, valued at approximately $116 billion – representing 4.7% of Bitcoin’s total supply.

When including exchange-traded funds (ETFs), private companies, governments, and exchanges, the amount of Bitcoin in treasuries has reached 3.8 million BTC, worth $442 billion.

Meanwhile, altcoin treasuries are also gaining momentum:

Ethereum (ETH) treasuries: 12.14 million ETH held by entities and ETFs, worth around $52 billion.
Solana (SOL) treasuries: 20.92 million SOL in reserves, valued at approximately $4.55 billion.

This trend underscores the diversification of corporate treasuries into leading blockchain assets, with Bitcoin still dominating as the primary long-term store of value.