For Mason, we go beyond every day

Leading with purpose. Every day.

“Ultragenyx was founded to advance innovative medicines for rare and ultrarare diseases that have never been treated before. We are delivering transformative therapies across multiple indications, and we have one of the most robust and diverse clinical pipelines in rare disease. Our focus is on doing the right things for patients both during development and commercialization to deliver on the promise of these therapies in a way that's meaningful for rare disease communities.”

Emil D. Kakkis, M.D., Ph.D.
Chief Executive Officer and President