If a player goes bankrupt before the 5-trains are bought, how are their private companies scored?

Question

Accepted Answer

At face value, as for any private still owned at the end. This is rare, since the game must end before a 5-train is bought. The rulebook's bankruptcy note mentions only shares, so this rests on player agreement rather than a written rule.

1830: Railways & Robber Barons

If a player goes bankrupt before the 5-trains are bought, how are their private companies scored?