According to Lookonchain, an address bought 80 BTC about four months ago for roughly $5.2 million at an average price of about $65,000 per coin and at one point had an unrealized profit of $1.38 million. According to Odaily, the address bought a Ledger device from reseller CryptoBillis a week ago and transferred all 80 BTC into it, after which the assets were completely lost.