Speaking of AMLN. the afternoon before their acquisition announcement I sold my entire position at eod, expecting to re-enter a shares and options position the next day at what I expected to be a better price. :(
Lizard spit!
On a similar note, the afternoon before DNDN's quantum price leap to mid-20's and then higher I entered a limit sell order that filled 80% before the close. At least I had some shares left to sell on the pop and convert into ARNA and MNKD.