Yes, with the Premium plans it is possible to add several email admins. Using multiple recipients means setting several email addresses to receive submissions.
In order to add the admins, on the Wix Editor page:
Go to the Settings.
On the Email Notifier section add as many email addresses as you need, separating them by commas and a space after commas.
Thus, after submission, the whole submitted data will be sent to all email admins.
With the Free plan you can add only 1 email admin. The Starter Premium plan supports 3 email admins, Pro Premium plan - 7, and Business Premium plan - unlimited email admins.