This is very possible. Hedge funds might have been caught off guard so they fabricated this bogus Lenovo rumor to disprove it in order to create a huge selloff so they could cover.
The reason I'm thinking this might be true is because normally when a rumor is proved false the pps drops quickly back to pre-rumor levels. After Lenovo came out and laughed at this rumor there were another 40 million shares traded yet the pps was only down a few cents for the day. We should have gone back down to at least $2.20 and under $2 by Friday.
This tells me whoever has been buying all week was still buying today even though that Lenovo rumor was debunked.
Also, if this Lenovo rumor started a week ago I doubt they would have kept it quiet this long. So there's a good possibility the real reason for the spike over the last week is a different and real reason in which case we should hear about it soon, like in a week or so.