Not to be a complete bitch about this, but...
On april 28th it did nosedive, but also closed at 20 dollars a share, it also opened at 20 dollars a share. AND if you kept the stock for 1 year, it went up to 53 dollars a share. So even though they did rush the stock down. Those that bought a 7 dollars, made a killing. Those that did not panic, made a killing. Only those that panicked got screwed.
Most of what is written in the article is really not based in fact, but tinted to look bad. Google the time frame. On april 24th it opened at 20 dollars a share, on may 7 2010, one year later, it closed at 53 dollars a share. IF you where smart enough to buy the stock on april 28th 2009, which I did, you made a killing.