Tom, I think anybody who gave you that information would be pulling your leg, Anyone with a very large number of shares would surely not brag about it.
The management here are a joke. Hydrogen is the fuel of the future and will never run out, unlike lithium, and yet AFC seem incapable of moving their share price into double figures.
Have a look at the last three RNS's Lionel and you will see there is progress on a number of fronts. Just one supply agreement needed and the price will move dramatically.
And Australia are streets ahead of the UK in the field of hydrogen energy. Melbourne University is experimenting with transporting hydrogen in the form of CH4 (less dangerous than petrol) and then using a special membrane to separate out the hydrogen at point of use. Exciting stuff.