The Ethereum Foundation is suspected of exchanging 150 ETH into about 497,200 DAI.
According to Arkham's monitoring, in the past 10 minutes, the relevant address of the suspected Ethereum Foundation (0xd7... c1f4) transferred 150 ETH to the CoW Protocol, and then received 497,250 DAI from the CoW Protocol.
It is reported that since this year, the suspected Ethereum Foundation address (0xd7... c1f4) has been selling ETH for DAI through the Cow Protocol almost every week or every two weeks, with the amounts generally being 50, 100, and 200 ETH.