• SER-252 Phase 1b Registrational Clinical Study: Following dosing of the first patient in February 2026, Serina continues to advance its Phase 1b registrational clinical study of SER-252 in advanced Parkinson's disease. The Company anticipates completing enrollment and dosing of Cohort 1 by the end of the third quarter of 2026 and is targeting availability of TFL data from the SAD study arm in the first half of 2027.