Allegro.eu S.A. — Director's Dealing 2026

Apr 9, 2026

Report Content Current report No. 10/2026

9 April 2026

Title: Notifications on transactions received under Art. 19 MAR

Legal basis: Art. 19 MAR

The Board of Directors of Allegro.eu (the "Company") hereby informs thaton 8 April 2026 it received transaction notifications (the"Notifications"), sent according to Article 19.1 of Regulation (EU) No596/2014 of the European Parliament and of the Council of 16 April 2014on market abuse (MAR) by:

(i) Jonathan Eastick - Executive Director of the Company, Group ChiefFinancial Officer and Member of the management board of Allegro sp. zo.o. (a wholly-owned subsidiary of the Company);

(ii) Tom Ruhan - Company Secretary and Member of the management board ofAllegro sp. z o.o.

The Notifications have been attached to this report.

Notifications relate to the Company's shares, vested and released as anaward, granted to Jonathan Eastick and Tom Ruhan under the AllegroIncentive Plan.

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.