Iron Man manages to get all of the Gems, and the Gauntlet itself, but he only uses them to do two things. To dump The Hood back in jail, and to remove the Gauntlet and Gems from existence. Well, that’s what he told everybody at least.
In reality, he teleported the gems away to be redivided up by the New Illuminati.
Iron Man has the Space Gem.
Xavier has the Mind Gem.
Namor has the Power Gem.
Reed has he Reality Gem.
Dr. Strange keeps his Soul Gem.
And the Time Gem? Well, that’s the newest member of the Illuminati…..