GenSight Biologics to Host a Webcast on April 5, 2023, to Provide an Update on LUMEVOQ® Manufacturing Following Investigations Findings

Paris, France, April 4, 2023, 5:45 pm CEST – GenSight Biologics (Euronext: SIGHT, ISIN: FR0013183985, PEA-PME eligible), a biopharma company focused on developing and commercializing innovative gene therapies for retinal neurodegenerative diseases and central nervous system disorders, today announces that its management team will host a live webcast on Wednesday, April 5, 2023, to provide update on LUMEVOQ^® manufacturing issues encountered in March, following investigations findings at the Company’s manufacturing partner in the United-States. GenSight confirms the start of the validation campaign in May 2023, with results expected in Q3 2023, as previously announced.

The webcast will be held in English, and a simultaneous French translation will also be available.

• Wednesday April 5, 2023

• 8:00 EST / 2:00 pm CEST

• Live webcast in English, with a simultaneous French translation also available: GenSight Biologics Manufacturing Update Webcast (royalcast.com)

The webcast will be available in replay using the same link above.