The logo of Ferrari is seen in the headquarters as CEO Benedetto Vigna unveils the company's new long term strategy, in Maranello, Italy, June 15, 2022.
They cover almost 70,000 workers in Italy, two thirds of them at the former Fiat-Chrysler, which last year merged with France's PSA to create Stellantis, whose brands also include Peugeot and Jeep.
Spokespeople for Stellantis and Iveco said they would not make any comment until unions have filed a formal request, in coming days or weeks.
The Agnelli family's holding company Exor (EXOR.AS) is a major shareholder in carmakers Stellantis and Ferrari, truckmaker Iveco and agricultural and construction machine maker CNH Industrial.
This is separate from a national contract for workers in other parts of the metal and mechanical sector.