In the US stock ownership is ... complicated. Effectively all shares in all public companies are owned by the Depository Trust & Clearing Corporation[1].
When you buy a share of a company, you hold that share at a broker. That broker in turn uses a clearing company which then in turn moves shares around between accounts at DTCC on a net basis between brokers. The only company in this chain that knows what shares you own is your broker. To everyone else in the world your share is held by, for example, Fidelity or Vanguard.
You retain every economic right to the share, you just don't _technically_ own it. This gets more complicated with margin accounts, where as part of the margin agreement you agree to allow your broker to lend your shares to shorts, so for some periods of time you may not actually own the shares you think you own.
When you buy a share of a company, you hold that share at a broker. That broker in turn uses a clearing company which then in turn moves shares around between accounts at DTCC on a net basis between brokers. The only company in this chain that knows what shares you own is your broker. To everyone else in the world your share is held by, for example, Fidelity or Vanguard.
You retain every economic right to the share, you just don't _technically_ own it. This gets more complicated with margin accounts, where as part of the margin agreement you agree to allow your broker to lend your shares to shorts, so for some periods of time you may not actually own the shares you think you own.
[1]: https://en.wikipedia.org/wiki/Depository_Trust_%26_Clearing_...