Does Oprah OWN OWN network?

Hello there, I'm curious to know if Oprah Winfrey actually owns the OWN network that's often associated with her name. From my understanding, OWN stands for Oprah Winfrey Network, so it would make sense if she had a significant stake in it. But is she the sole owner, or does she share ownership with others? I'd appreciate any clarification on this matter. Thank you!