September 6, 2019 $1 billion in BTC have been moved to an unknown wallet.

Over 94,000 BTC were consolidated from 15 addresses into a currently unidentified single address, making it the 5th largest BTC wallet by holdings. The transaction fee associated with the move is estimated to be just $700, or 0.00007% of the value transferred. Some suspect custody provider Bakkt may be involved in the transaction.