The dates of publication of the periodic reports in the calendar year 2026

Current report No. 2/2026

Subject: The dates of publication of the periodic reports in the calendar year 2026

Legal basis: Art. 3 and 4 of the Luxembourg Law of 11 January 2008 on Transparency Requirements as amended, Art. 17 of MAR.

The Board of Directors of Allegro.eu (the “Company”) hereby announces the publication dates of the periodic reports in 2026:

(1) Annual reports for 2025:

• Standalone annual report for the 12 months ended 31 December 2025 – 12 March 2026 (before the Warsaw Stock Exchange opening);
• Consolidated annual report for the 3- and 12-month periods ended 31 December 2025 – 12 March 2026 (before the Warsaw Stock Exchange opening).
(2) Consolidated semi-annual report for the 3- and 6-month periods ended 30 June 2026 – 17 September 2026 (before the Warsaw Stock Exchange opening).

(3) The Company reminds that, in line with the legal requirements and practices of Luxembourg companies, it will not publish consolidated quarterly reports for the 3 months ended 31 March 2026 and for the 3- and 9-month periods ended 30 September 2026. Instead, in respect to the first and third calendar quarters, the Company will publish selected historical consolidated financial information (in the form of a current report) and a business update (in the form of a presentation and supporting press release). These documents will be publicly available on the Group’s investor relations website at about.allegro.eu/ir-home and will be published as follows:

• documents including the data for the 3 months ended 31 March 2026 – before the start of trading on 21 May 2026;
• documents including the data for the 3- and 9- month periods ended 30 September 2026 – before the start of trading on 19 November 2026.

The Company further informs that, in line with its practice from previous years, it will not separately publish consolidated quarterly reports for Q4 2025 and Q2 2026.

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.