LOL, no. They usually just buy “all rights” and have done with you — meaning you retain NO copyright, no “ownership” whatsoever. You may still get your byline, but that’s it.

In any contract, there’s an offer — which includes something of value — and an acceptance, which says I accept your thing as having sufficient value.

Ideally, a contract is always negotiable, otherwise it might be deemed too one-sided to be a real “contract.” We just “negotiated” here with Medium over the wording. Now, you go sell your writing elsewhere — one of the first things any publisher wants to know is that it’s “previously unpublished” (virgin material, not to put too fine a point on it). That usually has the most value to them. Reprint rights, non-exclusive rights — it’s a hard sell.

Now, Eragon is one of the few famous exceptions — a self-published novel of sufficient popularity but not OVERLY exposed, that a traditional publisher wanted to pick up and polish and give a wider distribution. It can happen. But don’t hold your breath. Don’t publish your novel or blockbuster screenplay here, in other words — not if you have any faith at all in the value of your work.