worked well for Microstrategy (MSTR). Look at the 5 year or all-time chart for MSTR - https://finance.yahoo.com/quote/MSTR/

Not sure how they realize all those gains tho, or what happens to the stock price when they try to exit in a substantial manner.

And what projects do they have besides buying BTC like the parent comment mentioned? What tech have they built?

And yeah, BTC went up huge amounts, but certainly they were a large part of the buying pressure to get it there. But like you asked, how do they realize anything? Unless they get US government to start buying and shift their bags to the US tax payer, how do they do anything with their BTC? Besides using it as collateral to borrow even more money to inflate a even higher bubble?