Sold or he just gave away? There was actually money involved?

Since it's an MIT license what was sold? The trademark?

So far I gather that the expressjs.com domain, the GitHub repo, and the npm module were transferred to StrongLoop's control. I don't believe that Express is actually trademarked (and likely isn't trademarkable at all, being such a common dictionary word).

They probably get the npm name

fyi: http://strongloop.com/strongblog/tj-holowaychuk-sponsorship-...