Jan 4 (Reuters) - Fiat Chrysler and Peugeot maker PSA say in a joint statement:

* GROUPS AIM TO COMPLETE STELLANTIS MERGER ON JAN. 16

* SHARES IN STELLANTIS TO START TRADING ON JAN. 18 IN MILAN AND PARIS

* SHARES IN STELLANTIS TO START TRADING IN NEW YORK ON JAN. 19 Source text for Eikon: Further company coverage: (Reporting by Milan Newsroom)