David Schwartz, Ripple's CTO, shared his experience of selling 40,000 ETH early for $1.05 each, yielding a 321% profit. Although he initially felt like an “investment genius,” he later missed the significant ETH price surge. Schwartz now holds various cryptocurrencies and once owned 20 million XRP. His net worth is estimated between $90 million and $500 million, largely based on his Ripple shares.