According to ChainCatcher, as reported by CoinDesk, two wallets associated with Casascius physical bitcoins have recently transferred a total of 2,000 bitcoins, worth approximately $180 million, after being dormant for over ten years. These bitcoins had not been touched since 2011 and 2012, when the price of bitcoin was under $15, compared to nearly $90,000 today.
Casascius physical coins were created by Utah entrepreneur Mike Caldwell in 2011 as physical collectibles containing embedded private keys, with denominations ranging from 1 to 1,000 BTC. Each coin comes with a tamper-evident holographic seal to protect the private key underneath. Due to the US Financial Crimes Enforcement Network (FinCEN) flagging Caldwell as an unlice