Bob Whitsitt, president of Football Northwest, signs the paperwork to complete Paul Allen's purchase of the Seahawks. Under Allen's ownership, the Seahawks have had the most successful run in club history – winning the franchise's only Super Bowl and three conference championships, capturing eight division titles and advancing to the playoffs 10 times. As King County Executive Ron Sims said at the time, "It's a good, good day. It's a birthday. And this is going to be a great celebration."