UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of November 2026

Commission File No. 001-35193

Grifols, S.A.

(Translation of registrant’s name into English)

Avinguda de la Generalitat, 152-158

Parc de Negocis Can Sant Joan

Sant Cugat del Valles 08174

Barcelona, Spain

(Address of registrant’s principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Grifols, S.A.

TABLE OF CONTENTS

Grifols, S.A. Avinguda de la Generalitat 152-158 08174 Sant Cugat del Vallès Barcelona - ESPAÑA   Tel. [34] 935 710 500 Fax [34] 935 710 267 www.grifols.com

Pursuant to the provisions of article 227 of the Law 6/2023, of March 17, on Securities Markets and Investment Services, Grifols, S.A. (the "Company") hereby informs about the following

OTHER RELEVANT INFORMATION

The Company informs that the Board of Directors of Grifols, at its meeting held on 30 October 2026, has approved the payment of an interim dividend on account of the 2026 profit of euro 0.15 per each share by which the Company's share capital is represented. Payment of the interim dividend will be made on 4 December 2026. The paying agent will be Banco Bilbao Vizcaya Argentaria (BBVA).

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, thereto duly authorized.

Date:  November 2, 2026