Brad Garlinghouse is the CEO of Ripple. But note that Ripple =! XRP. Ripple do hold majority of XRP, at least 55%, possibly even north of 80% (haven't found a solid source for where in that spectrum the real figure falls), so they have quite a bit of sway with the token and its price, at least for the next five or more years given the escrow rules mentioned above.

But it is very important to understand that XRP is not controlled by Ripple in the sense we usually mean control.