The CFO’s prior sales—including the most recent one on 11/7/17—were pursuant to a 10b5-1 plan, which is what makes her exercise-and-hold transaction this week more remarkable.
It is legal—but rare—for an executive who has a 10b5-1 selling plan to execute a (voluntary) exercise-and-hold transaction while the 10b5-1 plan is in effect. (An exercise-and-hold transaction is is not considered a form of insider trading because it is not a form of trading.)
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”