Metaplanet, a Bitcoin mining company, transferred 3,000 BTC worth about $237 million to Coinbase Prime over the 24 hours before August 30, according to Lookonchain, an on-chain data analytics platform. The move attracted attention because deposits to an institutional platform can precede market sales. However, the transfer itself does not establish that Metaplanet sold or plans to sell its Bitcoin. Coinbase Prime offers institutional investors trading, custody and related services, meaning the assets could have been moved for custody or asset-management purposes. No actual sale by Metaplanet had been confirmed.