The wallet is containing 290 Bitcoin, worth $13,636,377.53.
The owner probably bought some Bitcoin just because it looked interesting and might have forgot about it, until now.
Another probability is that someone has looked into an old PC and has randomly found this wallet with its password.
This follows another Bitcoin wallet from 2010 moving $240M worth of BTC.
In 2018 another ancient wallet has woken up, owning now worth $5 Billion of Bitcoin