Galapagos NV — Major Shareholding Notification 2022

Feb 4, 2022

Galapagos receives transparency notification from EcoR1 Capital

Mechelen, Belgium; 03 February 2022, 22.01 CET; regulated information – Galapagos NV (Euronext & NASDAQ: GLPG) received a new transparency notification from EcoR1 Capital, LLC.

Pursuant to Belgian transparency legislation¹ , Galapagos received a transparency notification on 2 February 2022 from EcoR1 Capital LLC, who notified that it holds 3,407,246 of Galapagos' voting rights, consisting of 211,622 ordinary shares and 3,195,624 American Depository Receipts. EcoR1 Capital LLC, controlled by Mr. Nodelman, controls investment funds EcoR1 Capital Fund Qualified LP and EcoR1 Capital Fund LP, which all together hold 3,407,246 of Galapagos' voting rights. This represents 5.2% of Galapagos' currently outstanding 65,552,721 shares. EcoR1 Capital LLC thus crossed above the 5% threshold of Galapagos' voting rights by acquisition of voting securities on 27 January 2022. The full transparency notice is available on the Galapagos website.

About Galapagos

Galapagos NV discovers, develops, and commercializes small molecule medicines with novel modes of action. Our pipeline comprises discovery through Phase 3 programs in inflammation, fibrosis, and other indications. Our ambition is to become a leading global biopharmaceutical company focused on the discovery, development, and commercialization of innovative medicines. More information at www.glpg.com.

Contact

Investors: Sofie Van Gijsel Head of Investor Relations +1 781 296 1143

Sandra Cauwenberghs Director Investor Relations +32 495 58 46 63 ir@glpg.com

Media:

Marieke Vermeersch Head of Corporate Communication +32 479 490 603 communications@glpg.com

¹ Belgian Act of 2 May 2007 on the disclosure of major shareholdings in issuers whose shares are admitted to trading on a regulated market