In a word the answer is uncertainty. The uncertainty was...

In a word the answer is uncertainty. The uncertainty was initially caused by Keith Pitt as Resources Minister failing to complete the process of approval before Scummo as Resources Minister 2 made the decision to deny the process of approval of PEP 11 because polling showed the teals were on track to win 5 Lib seats in the upcoming Federal election. Despite the actions of Morrison all the seats he tried to save by denying the PEP 11 approval were won by the teals from the Libs. The Federal Court then quashed the Morrison decision bs side of apprehended bias and ordered the decision be made this time according to law. At present everyone is waiting for the NSW government to make their decision on PEP11 and once that decision is made then the Feds will make their decision.
Once both NSW and the Feds both make their decisions and uncertainty is taken from the market then the share price will do what the share price does.
The people who cost the shareholders money were politicians not other shareholders.