It might have been the closing out of a position but doubt it was for a profit given that the option has been losing value for months. There is always one of these buyout rumors that happens the week of expiration on some broken stock where it gets pumped, a bunch of lemmings rush in and buy the lottery tickets at ridiculously high prices given there are 4 days to go and the stock has no prospects of going anywhere. Every now and again you get one that is so obviously a game that even those like me who are not really into profiting from these types of shenanigens manage to make a bit of cash fading the retail ignorance and greed.