The entity known as "7 Siblings," which previously purchased 100,000 ETH at approximately $2,270 during a significant market drop on August 5 last year, has sold 19,957 ETH today. The sale, averaging $4,532 per ETH, netted them $90.44 million in USDC. "7 Siblings" still holds an estimated 280,000 ETH, valued at around $1.3 billion. They have a history of buying during market downturns, acquiring 25,000 ETH at $1,700 on April 7 this year when ETH dropped over 10%.