Google 10b5-1 then look at the footnotes on some of the filings. These are programed sales setup with their broker that distances them from executing the actual transactions so that they cannot be accused of making trades based on inside information.
Sample Footnote: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 23, 2017 (the "Trading Plan").
So far THIS year they’ve sold acquired cheaper share/equivalents (option execute) in the 7’s, 8’s, 9’s, 10’s, 12’s, 13’s, 14’s. I think I have that right. They don’t look like they’re trying to be trading gurus. They look like money making/taking executives. Limited by legal implications and consequences if left to their own human market-timing instincts (insider info), real or perceived.