According to BlockBeats, a prominent investor has sold MKR tokens after holding them for seven years. The investor initially purchased 451.5 MKR in 2017 when the price was approximately $23 per token. Around five hours ago, the investor sold 251.5 MKR for 172.5 ETH, equivalent to about $408,000, achieving an average price of $1,624 per token, marking a 70-fold increase.