Milan, 4 December 2025 – Under the buyback program of treasury shares referred to Art. 5 of the Commission Delegated Regulation (EU) no. 596/2014 (the “MAR”), announced to the market on 28 November 2025 and launched on 1 December 2025 for a maximum number of 10,000,000 ordinary shares (the “Program”) dedicated to the “2021-2023 Long-term Incentive Plan” (with reference to the so-called “Second Deferred Quota”), the “2022-2024 Long-term Incentive Plan” (with reference to the so-called “First Deferred Quota”), the “2023-2025 Long-term Incentive Plan” (with reference to the so-called “Immediate Quota”) and the Third Cycle (2025) of the "Employees Share Ownership Plan 2023-2025dedicated to all employees” (jointly, the “Share Incentive Plans”), MAIRE S.p.A. (the “Company” or “MAIRE”) announces – according to the provision and for the purpose of Article 2 paragraph 3 of the Commission Delegated Regulation (EU) 1052/2016 of 8 March 2016 (the “1052 EU Regulation”) – to have acquired on the Euronext Milan Market (EXM) organized and managed by Borsa Italiana S.p.A., in the period from 1 December 2025 to 4 December 2025 included, total no. 356,495 of treasury shares (corresponding to 0.108 % of the total number of ordinary shares), at a weighted average price of Euro 12.836 for a total counter-value of Euro 4,576,096.01.

On the basis of information provided by Intesa Sanpaolo S.p.A., the authorized intermediary in charge of carrying out the buyback mentioned in the present press release, here below is a summary of the daily operations, in aggregate form:

Transaction date

Number of
purchased shares

Average price

(euro)

Countervalue

(euro)

1 December 2025

91,963

12.67826

1,165,930.82

2 December 2025

100,285

12.87621

1,291,290.72

3 December 2025

98,187

12.93550

1,270,097.94

4 December 2025

66,060

12.84857

848,776.53

In accordance with the provisions of Article 2 paragraph 3 of the 1052 UE Regulation, attached to this press release, information of the daily buying-in operations carried out in the above-mentioned period is indicated in detail.

This information is also published on the Company’s website, www.groupmaire.com (Section “Investors” – “Press Release” – “Buy Back”) for a five-year period.

In the light of the purchases made, on today’s date the treasury shares held by the Company amount to no. 608,655.