Here's the breakdown:
* The Stone is part of the Deathly Hallows, along with the Elder Wand and the Cloak of Invisibility.
* Albus Dumbledore finds the Stone and hides it in a snitch.
* Harry Potter inherits the Snitch and unknowingly gets the Stone as well.
* He uses the Stone to bring back his loved ones (his parents, Sirius, and Remus), but realizes it's not real and that they are just ghosts.
* He drops the Stone into the Forbidden Forest and it is presumed lost.
Therefore, the Resurrection Stone isn't given to anyone permanently, and its whereabouts are unknown after Harry drops it.