GM's dividend hike last week "reflects the confidence the company has in the growing strength of the business," the automaker said Tuesday.
"As the company gets more clarity on several business open items related to recalls, it expects to continue to evaluate further return of capital to shareholders as soon as the second half of this year."
The US government invested about $50 billion to save GM, part of an auto industry bailout amid the 2008-2009 financial crisis. GM emerged from a government-backed bankruptcy reorganization in July 2009 and became a publicly traded company again in 2010.
Wilson is representing Taconic Parties, Appaloosa Parties, HG Vora Parties and the Hayman Parties, GM said.
GM shares rose 2.4 percent to $36.86 in mid-morning trade.
Copyright Agence France-Presse, 2015