The song itself dates to 1906 and is in the public domain, but newer settings, arrangements, performances, and recordings may have their own protection.
The song itself is controlled by Universal Polygram; various recordings will have additional rightsholders.
Shapiro Bernstein.
Nobody owns the copyright of a single word. Perhaps you mean trademark.
the coca cola company owns the copyright
A minor owns the copyright on any works they create.
Universal.
Folk songs, folk tales, and other sufficiently old creative works are not protected by copyright because they are in the public domain: no one owns them because we all own them.
Word Music.
Paramount.
Rankin/Bass.
Rondor Music.
There are 24 different copyright-protected items by that name.