seat license(продажа таких лицензий используется для финансирования строительства стадионов и т.п.; A personal seat license gives the holder the right to buy season tickets for a certain seat in a stadium. This holder can sell the seat license to someone else if he no longer wishes to purchase season tickets. wikipedia.orgDorian Roman)
co-sale rights(Tag-alongs effectively oblige the majority shareholder to include the holdings of the minority holder in the negotiations in order to facilitate the possibility that a tag-along right is exercised Kate_S)