TBE, re that info on who is buying: Phillip Securities is a fairly large organisation which seems to include both institutional funds management and on-line trading/custodial holding. So I guess it could be either a fund manager or perhaps an individual(s) trading through their custodial system? I guess if they go sub, we will find out more.
Avlibb plc don't seem to appear on the UK Companies House register. Maybe the spelling is not correct?
ETC
entertainment media & telecoms corporation limited