American investor Mark Bishop has sold his 22 percent stake in Koenigsegg Group, set to acquire General Motor’s Swedish brand Saab.

A new owner has entered Koenigsegg Group as North American investor Mark Bishop has sold his 22.2 percent in the Swedish sports car maker, business daily Dagens Industri writes. Bishop had the second-largest stake in the company.

"A new owner has taken over his shares and the negotiations between General Motors and Koenigsegg Group continue according to plan," a source was quoted by the newspaper as saying.

The three involved companies - Saab, GM and Koenigsegg - are having meetings this week with the Swedish government to discuss a state guarantee for a 4.3 billion kronor ($593 million) loan from the European Investment Bank. The loan would form a vital part of the financing for the acquisition.

"Saab's management is very positive that, together with the Koenigsegg Group, they will be able to present adequate collateral to get this loan," the source said.

Saab is currently under creditor protection. The reorganisation will be allowed to continue until August 20 and the working process to get the Saab deal finished is in an extremely intensive stage.