The story
In late 2006, Fox Atomic was started up as a label of 20th Century Fox under Fox Searchlight head Peter Rice and COO John Hegeman as a sibling production division under Fox Filmed Entertainment. In early 2008, Atomic's marketing unit was transferred to Fox Searchlight and 20th Century Fox, when Hegeman moved to New Regency Productions. Debbie Liebling became president. After two middling successes and falling short with other films, the unit was shut down in April 2009. The remaining films under the Atomic label in production and post-productions were transferred to 20th Century Fox and Fox Searchlight with Liebling overseeing them.
From Wikipedia’s article on Fox Atomic, shared under CC BY-SA 4.0.4