Koninklijke Brill NV

Post-Annual General Meeting Information • Feb 2, 2024

This is a press release by Koninklijke Brill N.V. ("Brill"). This press release is issued in connection with the recommended public offer by Walter de Gruyter GmbH ("De Gruyter"). for all issued depository receipts of ordinary shares in the capital of Brill (the "Depository Receipts") and all issued and outstanding ordinary shares in the capital of Brill which are not held by Stichting Administratiekantoor Koninklijke Brill (the "Registered Shares", and together with the Depository Receipts, the "Securities"; holders of such securities being referred to as "Securityholders") (the "Offer"). This press release does not constitute an offer, or any solicitation of any offer, to buy or subscribe for any securities in Brill. An offer has been made only by means of the offer memorandum dated 21 December 2023 ("Offer Memorandum") approved by the Dutch Authority for the Financial Markets (Autoriteit Financiële Markten). Capitalised terms not defined in this press release will have the meaning as set forth in the Offer Memorandum. This press release is not for release, publication or distribution, in whole or in part, in or into, directly or indirectly, in any jurisdiction in which such release, publication or distribution would be unlawful, including the United States.

PRESS RELEASE

Extraordinary general meeting adopts all resolutions in relation to the recommended Offer by De Gruyter

Leiden, the Netherlands, 1 February 2024 – Today, Brill's extraordinary general meeting of shareholders (the "EGM") adopted all resolutions in relation to the Offer, including with respect to the approval of the Post-Closing Merger, the appointment of the nominated members to the Supervisory Board, the amendment of the Articles of Association and the grant of full and final discharge to the members of both the Management Board and the Supervisory Board.

The resolutions are subject to the conditions precedent as mentioned in the convocation (including the agenda and the explanatory notes thereto) for the EGM and will take effect from the time specified therein, with the exception of the appointment of Mr F. Rodloff and Mr P.W.J. Hendriks as members of the Supervisory Board, which will take effect from the delisting of the Depository Receipts from Euronext.

The voting results of the EGM will be published on Brill's dedicated webpage: https://brill.com/page/degruyter. Draft minutes of the EGM will be published no later than three months from the date of this press release.

The Acceptance Period of the Offer expires on 15 February 2024 at 17:40 hours CET (unless extended). Securityholders wishing to tender their Securities should contact their financial intermediary to obtain information about the deadline by which such Securityholder must send instructions to the financial intermediary to accept the Offer, as such deadline may be set at an earlier time than 15 February 2024 at 17:40 hours CET. More information about the Offer and how to tender Securities can be found in the Offer Memorandum and on Brill's dedicated webpage: https://brill.com/page/degruyter.

Contact details for more information

Uneke Dekkers / Anja Höchle M +31 (0)6 50261626 / +31 (0)6 31973375 E uneke.dekkers@cffcommunications.nl E anja.hoechle@cffcommunications.nl

About Brill

Founded in 1683 in Leiden, the Netherlands, Brill is a leading international academic publisher in the Humanities, Social Sciences, International Law, and Biology. With offices in the Netherlands, Germany, Austria, the USA and Asia, Brill today publishes more than 360 journals and 2,000 new books and reference works each year as well as a large number of databases and primary source research collections. Commitment to Open Access and the latest publishing technologies are at the core of Brill's mission to make academic research available for the scholarly community worldwide. Brill's key customers are academic and research institutions, libraries, and scholars. Brill's Depository Receipts are listed on Euronext Amsterdam. For further information, please visit www.brill.com.