Fedora is 100% community distribution with Red Hat as a sponsor and large contributor. Fedora will always be 100% free and open-source and will never charge to make source-code available if that concerns people. This reflects heavily on their Freedom foundation: “[…] a completely free project that anyone can emulate or copy in whole or in part for their own purposes.”
Red Hat may have a grip on resources and funding for the project, but neither IBM nor Red Hat have ultimate decision-making powers.