I had a quick skim on the website myself, and I counted over half million having gone to pro trans organisations.
Though, to be fair the way the article is written it's very difficult to untangle exactly who he has given money to, rather than just talking about organisations which support the ideology.
I think that particular link has been updated. Because I'm pretty sure when I read it last year, he was changing the gay/straight alliance to be called the trans alliance.