Item 2(a). | Name of Persons Filing: Clarus Lifesciences II, L.P. (“Clarus II”), Clarus Ventures II GP, L.P. ( “Clarus II GP”), Clarus Ventures II, LLC (“Clarus II GP LLC”), Blackstone Clarus II L.L.C., Blackstone Holdings II L.P., Blackstone Holdings I/II GP Inc., The Blackstone Group L.P., Blackstone Group Management L.L.C., Stephen A. Schwarzman (“Schwarzman”), Robert Liptak (“Liptak”), Nicholas Simon (“Simon”), Nicholas Galakatos (“Galakatos”), Dennis Henner (“Henner”) and Kurt Wheeler (“Wheeler”), (each, a “Reporting Person” and collectively, the “Reporting Persons”). Clarus II GP is the sole general partner of Clarus II. Blackstone Clarus II L.L.C. is the sole general partner of Clarus GP. Blackstone Holdings II L.P. is the sole member of Blackstone Clarus II L.L.C. Blackstone Group I/II GP Inc. is the sole general partner of Blackstone Holdings II L.P. The Blackstone Group L.P. is the controlling shareholder of Blackstone Group I/II GP Inc. Blackstone Group Management L.L.C. is the sole general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone’s senior managing directors and controlled by its founder, Stephen A. Schwarzman. Robert Liptak, Nicholas Simon, Nicholas Galakatos, Dennis Henner and Kurt Wheeler shall be referred to herein as the “Managing Directors”, and collectively with Clarus GP LLC, the “Clarus Persons”. The Managing Directors are the members of Clarus GP LLC. Clarus GP LLC is the former general partner of Clarus GP. |