Look I hold but I would not be too hopeful that this is a big ann, if Vaz bounght a couple of days ago and then rleases a market making deal or news then it would be too dodgy.
this would be insider trading at it's worst, so don't think it will be too big.
Sorry for putting a dampner on it, but insider trading for a CEO would be too big. and more so seeing he doubled his holding.