Minds + Machines acquired MMX.co back in 2015 for $2,200 at Sedo. The company sold its internet top-level domain assets to GoDaddy for a total consideration of US$120mln in cash back in 2020.
The domain name expired and closed at $8,400 at GoDaddy auctions. According to Ahrefs the domain name has a Domain Rating of 74. 81,000 backlinks and 441 linking websites.
It will be interesting to see who purchased this name.