Actually I was a shareholder all the way to Dendreon's PROVENGE approval. Sold day of.
The day the flash crash happened, I noted the stock in the 24.70's and after the huge run up, always make it a habit to sit on a market order ready to bail. Rapid volume picked up to the down side and bang I got out in the very low 24's.
Dendreon's I placed a market order to get my shares back if I saw it take out 10. I placed my order and there was so much volume and trading, the stock actually fell to 7.30 before being halted at 11.80. I didn't even get my shares filled until low 11's. That's how fast SH1T happened.
The sweet part was SEC announcing all trades stand. After trading commenced, the stock ran all the way to the mid 50's on day of FDA approval.