Each company on Broccoli has its own marketplace. You can sell your investment (partly) to other co-owners in that marketplace. The company can potentially also buy back your investment through this marketplace. That depends on the legal set-up of the company when this marketplace opens. If the company of which you are co-owner is sold to a third party, the new owner will take over your investment and you will benefit from the increase in value like everyone else. It does depend on the legal set-up, and also on the company’s mission and vision. For the exact ins and outs, go to the specific company’s environment.