I took your points and passed them on.
He is not concerned with the main shareholder doing anything funny as they are building up the company to sell and he is an integral part of that.
It turns out that they agreed his 30% shareholding about 9 months ago but are only getting around to lodging this change with the CRO now.
His central question was whether the shareholding change was valid from the date they verbally agreed it 9 months ago or from the date when they recorded it in the CRO (around now.) ?