Hi Chaddy, I believe when you see a single share it's generally a trader to trader transaction and they do not have to disclose how many shares they have bought/sold.
Week 46 Wrap: Copper hits 2mth low as Trump threatens net zero pace; US rally fades; HotCopper’s picks
AN1 CuFe sells its Crossroads gold royalty to Northern Star for $4M cash; says better than waiting for mine launch