Changes in the corner office usually give Cramer cause for concern. Usually but not always.
"I often tell you that whenever there's a sudden change in management at a company whose stock you own, you should sell," said Cramer. But there are exceptions to this rule.
"Let me make something clear," said Cramer. "CEOs retire all the time, and that's not always a bad thing, it's not always something to worry about."
Cramer said his caution is piqued when a CEO departs suddenly. "That's when you need to get scared and sell the darned stock. However, there's a world of difference between a sudden management change and a planned succession," he added.
And although changes in the corner office have either recently occurred or are about to occur in the following companies - Cramer thinks the successions are so well planned that running for the exits in these cases would be a mistake.