In particular, even if you don't have stock in your own company, you'd still likely want to invest most of your assets. I would guess that a list of people hold

In particular, even if you don't have stock in your own company, you'd still likely want to invest most of your assets. I would guess that a list of people holding large quantities of cash would, roughly speaking, contain two groups: people who don't manage their wealth very well, and currency traders/speculators who are holding cash itself as an asset.