Stellantis new CEO Antonio Filosa started his tenure on Monday by retaining his previous role as head of the key North American market, while avoiding major changes to the French-Italian automaker's senior management team.

The most recent CEO, Carlos Tavares, who spearheaded the merger to form Stellantis, abruptly resigned in December amid disagreements with the board.

Stellantis NV is reorganizing its top management ranks as new Chief Executive Officer Antonio Filosa begins his push to turn around the struggling automaker.