Allegro.eu S.A. — Proxy Solicitation & Information Statement 2026

May 22, 2026

Report Content Current report No. 13/2026

22 May 2026

Title: Announcement of Annual General Meeting and Extraordinary GeneralMeeting of Allegro.eu

Legal basis: Luxembourg Law of 24 May 2011 on the exercise of certainrights of shareholders in general meetings of listed companies andimplementing Directive 2007/36/EC of the European Parliament and theCouncil of 11 July 2007 on the exercise of certain rights ofshareholders in listed companies, as amended.

The Board of Directors of Allegro.eu (the "Company") hereby informs itsshareholders that the Annual General Meeting (the "AGM") and theExtraordinary General Meeting (the "EGM") of the Company will be held on25 June 2026.

The shareholders are invited to participate in the AGM and in the EGMwhich will be held at Hotel Sofitel Luxembourg Europe, 6 Rue du FortNiedergruenewald, L-2226 Luxembourg, Grand Duchy of Luxembourg on 25June 2026:

- AGM at 2:00 pm CEST;

- EGM (held before a Luxembourg notary public) at 3:00 pm CEST.

The documents and information related to the AGM and to the EGM areattached to this current report and are available on the Company'swebsite: www.allegro.eu and in particular in the "Investors" section.

Allegro.eu is a Luxembourg public limited liability company (socitanonyme), registered office: 6, rue Eugne Ruppert, L-2453 Luxembourg,Grand Duchy of Luxembourg, R.C.S. Luxembourg: B214830.

Supporting Materials:

Allegro.eu AGM_EGM2026 Convening Notice

Allegro.eu AGM_EGM2026 Agenda and Justification of Draft Resolutions

Allegro.eu AGM_EGM2026 Attendance proxy and voting form

Allegro.eu AGM_EGM2026 Total Number of Voting Rights

Allegro.eu Data Protection Information

Allegro.eu AGM2026 reporting package_audited consolidated annualreport_zip - available under the link:https://about.allegro.eu/wp-content/uploads/2026/03/Annual_Report_of_Allegro_eu_Group.zip