Company: GLPG
Filing Date: 2025-04-29
Form Type: 6-K
Source: 0001193125-25-103973
Chunk: 2

Company: GALAPAGOS NV
Filing Date: 2025-04-29
Form: 6-K
Chunk 2
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 of the CSRD that in the meantime has taken place, to extend the aforementioned mandate of
BDO Bedrijfsrevisoren BV for the assurance of the sustainability reporting of the Company, as referred to in articles 3:6/1 - 3:6/8 and articles 3:32/1 - 3:32/6 of the Belgian Companies and Associations Code for a period of one year, to include also
the assurance of the sustainability reporting of the Company for the financial year ending on December 31, 2025, so that (taking into account the provisions of article 3:61, §8 of the Belgian Companies and Associations Code) the first term
of the statutory mandate of the statutory auditor for the assurance of the sustainability reporting of the Company in accordance with applicable law is aligned with the current mandate of the statutory auditor to audit the Company’s annual
financial statement (which shall expire immediately after the annual shareholders’ meeting to be held in 2026), and (c) to determine the remuneration of BDO Bedrijfsrevisoren BV for the assurance of the Company’s sustainability
reporting for the financial year ending on December 31, 2025 at EUR 80,000.00 (if any, VAT exclusive). The appointment of the statutory auditor with respect to the aforementioned assurance will expire immediately after the annual
shareholders’ meeting to be held in 2026.

The information contained in this Form 6-Kis hereby incorporated by reference into the Company’s Registration Statements on Form S-8(File Nos. 333-204567, 333-208697, 333-211834, 333-215783, 333-218160, 333-225263, 333-231765, 333-249416, 333-260500, 333-268756, 333-275886,and 333-283361).

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

| Date: April 29, 2025 |     | GALAPAGOS NV          
 (Registrant)          
 /s/ Annelies Denecker |
|:---------------------|:----|:----------------------|
|                      |     | Annelies Denecker     |
|                      |     | Company Secretary     |