Ann: Highly significant gas discoveries at Erregulla Deep-1, page-471

So far as purchasing from an index fund not a problem. They can come to any agreement they wish.
Adopting a strategy to lower the price then purchase could be problematic I agree with you. Proving that well I have never seen that happen. Even with this stock it could be said to have been shorted for any number of reasons. A lot of which we have heard recounted here; capital raise, failed well, exit from asx etc etc. Let’s see if a substantial holder notice comes out in a couple of weeks.
I hope this is not happening as having someone acquire a substantial stake ( effectively a blocking stake ) would not be advantageous to holders in my opinion.