Maybe they don't want their ownership bought and sold on the market. It could be that they only offer stock to certain people. When I was an intern at an art gallery, there was some battle over the ownership. Well, not so much a battle: the proprietor had to do whatever the board said, mainly the accountant, because they owned the company (the accountant had 51% if I recall correctly).
Cutco didn't strike me as one of those companies who would rather not publish their financial statements, either. From how they are talked about by Vector Marketing reps, one would guess that having that information public wouldn't harm the company any. It's possible they simply don't want to disclose that information.