According to ChainCatcher, monitoring by Lookonchain has revealed that an Ethereum ICO participant, "0x7d03," has reawakened after more than 10 years of inactivity, conducting a test transaction five hours ago by transferring 0.01 ETH.
During the ICO, "0x7d03" invested only $15.5 and received 49.93 ETH—which is now worth $240,000, representing a return of 15,484 times the original investment.