Good afternoon Rebecca and welcome to the Events Calendar forum!
Thank you for your interest in our products.
We’ll be glad to answer your questions.
I have a multisite WP installation I am running several sites from. They all need to share the same calendar information. Is this possible with The Event Calendar?
The short answer is very soon that will be possible!
We are in the process of testing the Events Calendar 4.5 which will include many exciting features, including the ability to import events from other the Events Calendar calendars via our Event Aggregator service: https://theeventscalendar.com/product/event-aggregator/.
Would this require multiple licenses?
The short answer is that you will not require multiple licenses, but rather a license that can handle the number of events that need to be imported to your sub-sites on a daily basis.
Let me know if that helps.
Have a great day!
Geoff B.