This question still stands, both FCA and PSA shares are not tradeable any more.
PSA [ug] became FCA shares and FCA changed its name to stellantis according to this site:
Over the weekend, PSA shares were exchanged into new FCA shares. All FCA shares were then renamed as Stellantis.
I’ve also requested Stellantis to be added Stellantis (Formerly known as Peugeot [UG] and Fiat Crysler [FCA])