Yesterday, 13,204 Bitcoins left Coinbase for unknown wallets. That's just over three-quarters of a billion dollars at the current price. According to Whale Alert, 36 separate transactions were made, each valued at between 351 and 391 Bitcoins, between the hours of 4 and 5 PM UTC. Last night, Whale Alert tweeted that
4,501 BTC had left Coinbase for an unknown wallet, meaning in the past 24 hours more than a billion dollars worth of Bitcoin has been transferred out of Coinbase, though it's not known whether the transactions are related. It could be an over-the-counter desk reshuffling its wallets, a Bitcoin not-quite-billionaire moving cash to cold storage, or a money-laundering scheme. It's difficult to tell: the transferrer protected their privacy well, generating a new address for each transaction.
This is not the first time a large Coinbase movement happened this month, either.