Well, it turns out that the Ethereum Foundation has been selling the ETH they transferred out during this time: they sold 1,210 ETH for 3.496 million USDC two hours ago, at a selling price of $2,889.5.
➡️ In the last month, the Ethereum Foundation transferred 21,000 ETH to address 0xc06;
➡️ Address 0xc06 transferred 7,000 ETH to address 0x247 six days ago;
➡️ Address 0x247 transferred 1,210 ETH to address 0x340 two hours ago and then sold it for 3.496 million USDC, transferring it back to address 0x247.
Address 0xc06: 0xc06145782F31030dB1C40B203bE6B0fD53410B6d
Address 0x247: 0x247B57471Ff9F4c99759eBCa3ADF59c1a8F3583c
Address 0x340: 0x340Bf4437Eb95B5a4E53DbEF839d1879983A5574