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

May 28, 2026

Report Content Current report No. 14/2026

28 May 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 28 May 2026 it received transaction notifications (the"Notifications"), sent by:

(i) Marcin Kuśmierz - Executive Director of the Company, Group ChiefExecutive Officer and president 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.,

according to Article 19.1 of Regulation (EU) No 596/2014 of the EuropeanParliament and of the Council of 16 April 2014 on market abuse (MAR).

The Notifications relate to the financial instruments linked to theCompany's shares, awarded under the Company's incentive plan.

The Notifications have been attached to this report.

Allegro.eu is a Luxembourg public limited company (socit anonyme),registered office: 6, rue Eugne Ruppert, L - 2453 Luxembourg, GrandDuchy of Luxembourg, Luxembourg Business Register: B214830.