Ahoy, Nielisson! As it states in the simple rules on the main page: "Grand Prize and Runner Up Prizes awarded one (1) to a team."
There's a longer version of that in the Official Rules: https://docs.google.com/document/d/1ZJ2n-Xu3u_xRk-ODURh0ATIMiPiwFe0qJKeFdEF9drg/...
But the simple answer is: If your team wins then you must select one (1) person from your team to receive the Grand Prize.
Hope that helps. And good luck!