Current report No. 31/2025

Legal basis: Article 17 of Market Abuse Regulation

Title: Allegro announces the completion of its share buyback programme

With reference to the current reports No. 27/2025 and 30/2025, the Board of Directors of Allegro.eu (the “Company”) hereby announces the completion of its share buyback programme announced on 18 November 2025 (the “Programme”).

In aggregate, 4,664,941 shares were bought under this Programme, representing 0.44% of the share capital of the Company.

• Period of repurchases: 26 November - 3 December 2025 (based on trade date)
• Number of shares acquired: 4,664,941
• Venue of trading - WSE
• Pecuniary amount paid for shares acquired (excluding broker’s fees): PLN 148,555,781.41.

As disclosed when the Programme was launched, its purpose was to satisfy the awards granted under Allegro’s employee incentive plan.

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