It’s just common sense. Surely if you own 10% of a business and...

It’s just common sense.
Surely if you own 10% of a business and you sit on the board and have a say in its direction, then you have a greater foresight into its success or failure.
If you then lose that foresight or you see greater risks emerging you will reduce your shareholding accordingly.
So Mann and co Would be prudent to reduce their investment , from memory he holds at least 20 million shares purchased at 2.5 cents, so anything above that is profit.
And same with me although I never had company foresight, I see greater risk ahead and will look to reduce my holding by half, I also have shares purchased at 2.5 cents.