EXHIBIT 99.1 Galapagos reports third quarter 2023 results and releases new encouraging data from CAR-T studies for presentation at ASH 2023 First nine months 2023 key financials: Group revenues of €448.9 million Jyseleca® net sales of €82.1 million Cash and current financial investments of €3.8 billion at 30 September 2023 Full year 2023 net Jyseleca® sales guidance of €100-€120 million and cash burn guidance of €380-€420 million reiterated Jyseleca® strategic evaluation completed: signed Letter of Intent t ...