Mirum Pharmaceuticals Inc

We lease 11,154 square feet of space for our headquarters in Foster City, California under an agreement (the “First Agreement”) that expires in March 2025; however, we have entered into a separate agreement (the “Second Agreement”) in January 2024 in which we will lease 36,318 square feet of space for our new headquarters in Foster City, California. The Second Agreement expires in approximately August 2029, subject to the occurrence of the Commencement Date, which term is defined in the Second Agreement. In connection with the Second Agreement, we have entered into an amendment to the First Agreement that will accelerate the termination date of the First Agreement to be shortly after the Commencement Date. We anticipate the Commencement Date to occur in approximately May 2024, and the First Agreement to terminate shortly after.

We also lease approximately 3,200 square feet of space for an office in Basel, Switzerland under an agreement that expires in June 2028. Additionally, we lease approximately 3,500 square feet of office space in Zug, Switzerland that expires in January 2025. We believe that our facilities are adequate to meet our current needs, and that suitable additional alternative spaces will be available in the future on commercially reasonable terms, if needed.