Usually, the quiet period will end in a week after company releasing earning. Many inside will be allow to sell next week. I am sure a lot of inside will start selling now after seeing such terrible report.
They will wait to sell until the stock breaks $300. I am sure JB has already told the employees to stand down on selling any shares, so it will probably be limited to none.
JB himself sold large amount of shares at the end of last year. He know the growth story for AMZN is about to end.