The wallet, which remained silent for 4 years, has just moved 
BTC wallet top 7
https://bitinfocharts.com/bitcoin/address/16ZbpCEyVVdqu8VycWR8thUL2Rd9JnjzHt
BTC wallet top 7 https://bitinfocharts.com/bitcoin/address/16ZbpCEyVVdqu8VycWR8thUL2Rd9JnjzHt
isn't this the BTC-E wallet ?
probably got seized by the FBI
Not probably:
https://cointelegraph.com/news/fbi-has-gained-control-of-our-wallets-bitcoin-exchange-btc-e