The third thing is just the second thing. TurboTax lobbying to avoid free tax filing is obviously rent-seeking. It might even be more accurate to call this category rent seeking through regulatory capture. Fossil fuels would have been trounced by nuclear except that they lobbied to require nuclear to internalize all of its costs (and then some) but not their own, extracting undue rents by handicapping the competition.

The closest you get to a third category is Cambridge Analytica, in which case the third category would be criminal enterprises. But these rarely remain listed on the stock market; you won't find shares of the Guadalajara Cartel at your brokerage. It's the companies in the second category that do, because they're doing things that should be illegal but aren't.