I think Mike Saylor has way more Bitcoin in his own stash than his company does. He probably bought Bitcoin throughout its whole existence and started the company to bring in outside investors. This way, he's not only promoting Bitcoin to the masses but also making a lot more money from his investments. Of course, I could be wrong, but for some reason, that's how I see the whole story.
In 2013, Michael Saylor compared and likened bitcoin to gambling, he did not believe in its future. He only really changed his mind about bitcoin after spending time learning about it and the crypto market in 2020, and that was also when the covid pandemic hit our economy.
Although no new information was mentioned, according to his previous statement, he personally owns 17,732 Bitcoins and this is the Bitcoin that he asserts will never sell. Not the amount of bitcoins the company holds because he doesn't have full control over them.
MicroStrategy was founded in 1989 and they also started investing in 2020.
https://x.com/saylor/status/413478389329428480