@Hiddenvalue, perhaps what @hightrax is saying is that management (i.e. insiders) haven't been singing any praises about the quantity of high grade ore mined from Williamson & this has resulted in him speculating that current production in the Sep'20 quarter might be disappointing & a possible contributing reason for the SP weakness (all in the context of production under-performance over the past (6) months for a variety of reasons).
Why would you conclude that @hightrax was referring to an insider selling out?