Arby's parent company is buying Sonic for $2.3 billion
Arby's parent company, Inspire Brands, is acquiring burger chain Sonic.
On Tuesday, Inspire Brands announced that it is buying the burger brand for $2.3 billion, at $43.50 per share.
Inspire Brands was formed by Arby's earlier this year following the acquisition of Buffalo Wild Wings.
This story is developing.