They get split too. Even shares held in paper certificate form. Each will be ratioed when converted. I think they need a BOD approval to become free unrestricted shares. Then the T/A makes the change. And a change needs to be made with paper certificates into new printed certificate. Pain in the ass. Those types of shares usually are control blocks and never get converted. Preferred class of shares and A/S are not effected by any split. Those remain the same. It's a different action to change those.