According to Lookonchain, the mysterious group known as '7 Siblings' has exchanged a total of 1,611 MKR, valued at $2.25 million, for 1,364 ETH over the past two days. This trading activity highlights a significant shift in their asset holdings, possibly indicating a strategic repositioning in the cryptocurrency market. The transaction details are crucial for traders monitoring large-scale movements in MKR and ETH markets.