According to BlockBeats, on September 6, according to Spot on Chain monitoring, a diamond hand investor sold MKR after holding it for 7 years. The holder bought 451.5 MKR in 2017, when the price was about US$23.

Just sold 251.5 MKR (~$408K) about 5 hours ago for 172.5 ETH, an average price of $1,624 (70x).