Skyship -
I think UBS just (cleverly, in hindsight) took advantage of the spike up to around 30p end of October to sell some they probably bought in the low 20p's.
They obviously thought the placing price of 24p was good value and bought more.
Don't be so sure that 1.34m trade was a sell - could have just been some of the placing shares changing hands. I doubt one mm would take that amount of shares onto their books.
But, as Del says, JEFF still seem to have access to a reasonable amount of stock to sell. The seller could very easily, and quickly, stop the supply though.