Exhibit 99.1
Signature Page
KKR GENETIC DISORDER L.P.		05/14/2025
By: KKR Genetic Disorder GP LLC, its general partner
By:	/s/ Christopher Lee
Name: Christopher Lee Title: Assistant Secretary
KKR GENETIC DISORDER GP LLC		05/14/2025
By:	/s/ Christopher Lee
Name: Christopher Lee Title: Assistant Secretary
KKR GROUP PARTNERSHIP L.P.		05/14/2025
By: KKR Group Holdings Corp., its general partner
By:	/s/ Christopher Lee
Name: Christopher Lee Title: Secretary
KKR GROUP HOLDINGS CORP.		05/14/2025
By:	/s/ Christopher Lee
Name: Christopher Lee Title: Secretary
KKR GROUP CO. INC.		05/14/2025
By:	/s/ Christopher Lee
Name: Christopher Lee Title: Secretary

KKR & CO. INC.
By:	/s/ Christopher Lee		05/14/2025
Name: Christopher Lee Title: Secretary
KKR MANAGEMENT LLP			05/14/2025
By:	/s/ Christopher Lee
Name: Christopher Lee Title: Assistant Secretary
HENRY R. KRAVIS			05/14/2025
By:	/s/ Christopher Lee
Name: Christopher Lee Title: Attorney-in-fact
GEORGE R. ROBERTS			05/14/2025
By:	/s/ Christopher Lee
Name: Christopher Lee Title: Attorney-in-fact
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