I don't think the original owner would own it outright, at the very least there is the Law of Salvage (https://en.wikipedia.org/wiki/Law_of_salvage https://en.w

I don't think the original owner would own it outright, at the very least there is the Law of Salvage (https://en.wikipedia.org/wiki/Law_of_salvage https://en.wikipedia.org/wiki/Law_of_salvage) where the port authority (or whoever else refloated it) would be entitled to "a reward commensurate with the value of the property salved." Also, from the first image in the picture you can see that the cargo has shifted and is now all on the side of the ship . Modern cargo vessels don't have that much excess stability, so chances are that it would not stay upright even if it were completely pumped full of air.