Document stating JPMorgan engagement at Aroundtown SA: could anyone explain the details?

Hi there,
could anyone “explain me like I'm 5” the engagement of JP Morgan Chase at Aroundtown SA based on the following document?
https://www.bloomberg.com/press-releases/2023-10-04/aroundtown-sa-notification-of-a-change-in-major-holdings-pursuant-to-the-modified-law-and-grand-ducal-regulation-of-11-january
I'm getting that they somehow bought / will buy shares of Aroundtown SA (via options)?!

But how much exactly? Is JP Morgan Chase obligated to buy? And HOW and WHEN exactly?

Thank you very much 🙂