Fans Club?

Can anyone please explain to me the current set up of Shamrock Rovers ?

Its not to have a go :)
Am just interested in what type of fans run club it is.

Some questions I have are,

Do the 400 Club own the whole club ?
Do the 400 club own all the Shares in the Trading Company? (is there any shares)

If its confidential to your members then tell me to feck off but how much is yearly subscription to the 400 Club and what way does membership work.

If the above is some secret then I'll go mind my own business :p