Some 120,000 BTC was stolen in the 2016 hack, then worth around $60 million and representing nearly one-sixth of the total trading volume at the time. At today’s prices, the total amount of bitcoin stolen is valued at $4.5 billion, but the DOJ only seized about 94,000 BTC valued at $3.6 billion. The DOJ release alleges the two conspired to launder these proceeds and heavily implies, but does not claim, they were the original hacker(s).
Source: https://www.coindesk.com/policy/2022/02/08/us-officials-seize-bitcoin-from-2016-bitfinex-hack/?utm_medium=referral&utm_source=rss&utm_campaign=headlines