Vulpes sell28 Apr 2020 15:59
You have to remember Vulpes is not an active scientific member of the board - he's only there because his fund invested money. Not happy that he sold some, because of the impact on the share price, but really it's fair enough - he's an investor, he's allowed to make money.
As a previous poster mentioned, this is not a regular investment fund, so we can't read too much into it. Maybe someone in the family had a big bill and they decided they could take some profit on Scancell to pay for it. They still have shed loads, so very much still stand to profit from all the potential.
We will probably never know why he sold, but so long as it's a one-off opportunistic profit take, there's nothing to fear, he can't be privvy to any material information cos if he was he would be in a closed period and unable to buy or sell.
Lets just hope it's a one-off. I suspect it is, else the notifications would not have been so quick in coming - he would have wanted to sell as many as possible at a higher price before notifying (so as to not crash the price before he'd finished).