> You can't know about a bank run beforehand.
Explain the selling of stock by the executives then.
They didn't know there would be a bank run either. They weren't working off private information, you could read their financial statements too.
…but that's not enough to make a bank fail, it's just bad news for shareholders.
(Being insolvent isn't actually enough to kill a bank as long as the run doesn't start. Of course, here the bank dies when the regulator decides it dies anyway.)