Quote Originally Posted by Zebedee View Post
I'm not suggesting anything improper,although the timing is incredible.
I'm not sure on US rules, but where I live it's OK to sell AFTER announcements, since the information is in the public domain.

What's not OK is trading before an announcement, e.g. selling before bad news, or buying before good news.

Pfizer is currently about 1% above the price 3 weeks ago.