I guess the analogue of the death penalty for a corporation would be for the state to assume ownership of it, auction off its assets, and then compensate first the bond-holders and second the shareholders in proportion to their stake in the corporation. An analogue of imprisonment might be to replace the elected board with state-appointed managers for a limited period of time. There is also the wide-open world of community service possibilities, which has been reluctantly explored by the US in some of its Microsoft settlements IIRC.

Unfortunately, the legal system lacks the balls to really use these punishments against corporations very often, in sharp contrast to how it treats some poor slob who forgot to renew his driver's license or pay his parking tickets.