The publisher said in a statement that the studio remains open and support for its games is ongoing.
"Our earnings statement contained a report about the divestment of Eden Studios," it said. "We want to make it clear that the studio has not closed and that we will continue to support the console and PC games of Eden Studios, notably Test Drive Unlimited 2, while this process is underway.
"The divestment is in line with our previously stated strategy of exploiting our popular intellectual property library on mobile devices, where he have seen strong initial success, and via online games and licensing."
Atari is believed to have laid off the majority of Eden Games staff last year.