The original team/investor address of a MakerDAO sold 10 years of MKR to USDC 20 minutes ago

On 24 July, an initial team/investor address of a MakerDAO was replaced by a 10-year-old MKR by USDC, according to the residual ashes monitoring. The address was collected in April 2016 and 1050 MKRs were stored in their wallets for 10 years (with the exception of the MKR upgrade in 2018), which was eventually sold today for 136,000 USDCs to Kraken。