I still don't know it. I don't have a huge amount of confidence in "a prominent figure in the Counter-Strike community" as a source for Valve's internal finances.

Shares aren't necessarily voting shares, but I don't know how that works and if it's even relevant for the private Valve corporation.

So maybe Gabe Newell does have full control over Valve, or he might not.

It's definitely interesting that it's only 25%.