This website shows all the publicly traded companies that have Bitcoin on their balance sheet, and how down or up they are

Not only does it show which companies do, but it also tracks their cost basis and you can take a look at how much they are down or up. Obviously MicroStrategy is at the top, their latest purchase was 301 Bitcoins last month. Tesla's last activity was on June 29, selling off 29,000 Bitcoins. El Salvador has been quiet since July.

June through September of 2020 the amount of Bitcoins in treasuries shot up, which was a little after the last Bitcoin halving. It's possible that we see some sort of massive buying a couple months after the next halving by these public companies as hype rises and the state of the economy has hopefully gotten better by then