Probably the most famous "activist investor" after Carl Icahn.
They like to call out bad management teams, stealthily build up sizeable stakes in companies until they hit a threshold (5%) at which point they must disclose their position, then they demand a seat or two on the board of directors and start trying to stir up shit to change the company so that it improves its return to shareholders. They often succeed.
Which is to say they have something of a contrarian view on a lot of things. It must be a cool gig, tbh. Beats being the CEO's yes-man which is the case for all sorts of advisor roles..
