It is a common thing for one big company to own several other large companies. As a matter of fact, there are about a dozen companies that own all the other ones.
Did you know that only a while ago (December 2017), Apple acquired Shazam for $400 million? Or that Facebook owns both Instagram and WhatsApp, and that Microsoft bought LinkedIn, Skype, MSN, and Bing? However, before becoming a child company of Microsoft, Skype was actually under eBay’s wing.
The world appears to be small when you take a look at all big company acquisitions that happened over the years, and all the leading companies are somehow always intertwined. It’s like a business-themed soap opera.