Webuild

Transaction in Own Shares • Apr 7, 2025

PRESS NOTE

WEBUILD: PURCHASES 580,000 TREASURY SHARES FOR A TOTAL VALUE OF €1.6 MILLION

Milan, April 7, 2025 – Webuild purchased, in the week between March 31 and April 4, 580,000 treasury shares at a weighted average price of €2.777 per share, for a total value exceeding €1.6 million. In compliance with current regulations, all details of the transaction were disclosed via a press release, also available on the institutional website www.webuildgroup.com.

Over the past ten years, Webuild has demonstrated structural resilience even in the face of radically changing scenarios impacting the global macroeconomic framework and individual geographies, confirming the solidity of the factors underlying growth and cash generation capacity. These factors were the basis of the record results achieved in 2024, with the surpassing, one year ahead of schedule, of the main targets set by the 2023-2025 three-year plan and the subsequent upward revision of the 2025 guidance.

Webuild is a global leader in infrastructure development, with a record backlog of over €63 billion that ensures visibility for more than 5 years, a presence in over 45 countries with 92,000 direct and indirect employees, with globally recognized skills and capabilities.

In the United States, the Group is present with the American company Lane, which boasts a 135-year history and, in recent years, has built or is completing infrastructure projects worth a total of \$3.6 billion, for important institutional clients such as the United States Navy and the main American Departments of Transportation. According to the 2025 edition of the "Card for America's Infrastructure" report, published by the American Society of Civil Engineers (ASCE), investments of \$9.1 trillion are needed to ensure good maintenance of US infrastructure. The local presence guaranteed by Lane makes the Group one of the main partners of US institutions for the modernization of the country's infrastructure and the implementation of a large investment plan.

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Webuild is a global leader in the design and construction of large, complex infrastructure projects in sustainable mobility, hydropower, water treatment, and green buildings. A recognized leader in the water sector, it works in approximately 50 countries with over 92,000 people of 125 different nationalities. The Group boasts nearly 120 years of applied engineering on more than 3,700 completed projects, with a track record of 13,648 kilometres of railways, 891 kilometres of metro lines, 82,577 kilometres of roads and highways, 1,022 kilometres of bridges and viaducts, 3,462 kilometres of tunnels, and 318 dams and hydropower plants. Among its most famous projects: the expansion of the Panama Canal, the Long Beach International Gateway bridge in California, the Third Bosphorus Bridge in Turkey, the Sydney Metro Northwest skytrain viaduct and bridge, the Kingdom Centre skyscraper in Riyadh, Saudi Arabia, and numerous metro lines in Copenhagen, Paris, Rome, Milan, Naples, Doha, Thessaloniki, and Riyadh. Among the main ongoing projects, the following stand out: the New Genoa Breakwater, the Brenner Base Tunnel, Line C of Rome's metro network, the high-capacity railways between Genoa and Milan, the high-speed railway between Naples and Bari, the Palermo-Catania-Messina high-capacity railway, the Snowy 2.0 hydropower scheme in Australia, and the Trojena dam network in Saudi Arabia. As of December 31, 2024, the Webuild Group registered total revenues for €12 billion and a total backlog of €63 billion, with more than 90% of its construction backlog related to projects linked to the United Nations Sustainable Development Goals (SDGs). Webuild, subject to the direction and coordination of Salini Costruttori S.p.A., is headquartered in Italy, is listed on the Milan Stock Exchange, Borsa Italiana (WBD; WBD.MI; WBD:IM), and since 2021, it is included in the MIB ESG index of the Italian blue-chip companies with the best ESG practices.

More information at www.webuildgroup.com

Contacts:

Francesca Romana Chiarano Senior Manager - Media Relations Tel. +39 338 247 4827 mail: f.chiarano@webuildgroup.com