Webuild — Major Shareholding Notification 2026

Mar 6, 2026

webuild

emarket

eon

NOTICE PURSUANT TO ARTICLE 143-QUATER, PARAGRAPH 5, OF CONSOB REGULATION NO. 11971/99

Milan – March 6, 2026 - Following the Press Release issued today on the change in the total amount of voting rights, the following is the list of shareholders of Webuild S.p.A. - holders of a stake exceeding 3% of the total number of voting rights - who have requested and obtained registration in the Register for increased voting rights.

CONTROLLING ENTITY	SHAREHOLDERS	REGISTRATION DATE	REGISTERED SHARES	% OF ORDINARY SHARE CAPITAL	DATE OF ACHIEVEMENT	VOTING RIGHTS	% OF VOTING RIGHTS
Pietro Salini	Salini S.p.A.	22/04/2022	361,685,772	35.54%	21/04/2024	723,371,544	46.67%
		05/09/2022	175,877	0.02%	04/09/2024	351,754	0.02%
		06/02/2024	665,286	0.06%	06/02/2026	1,330,572	0.09%
		28/04/2025	25,000,000	2.46%	-	25,000,000	1.61%
		24/06/2025	4,824,652	0.47%	-	4,824,652	0.31%
	Totale Salini S.p.A.		392,351,587	38.55%		754,878,522	48.70%
	Athena Partecipazioni S.r.l.	19/05/2024	1,069,524	0.11%	18/05/2024	2,139,048	0.14%
		05/09/2024	631	0.0001%	04/09/2024	1,262	0.0001%
		03/02/2024	6,001	0.0006%	03/02/2026	12,002	0.0008%
	Totale Athena		1,076,156	0.11%		2,152,312	0.14%
	Pietro Salini	23/05/2022	545,053	0.05%	22/05/2024	1,090,106	0.07%
		07/09/2022	238	0.00002%	06/09/2024	476	0.00003%
		06/02/2024	2,270	0.0002%	06/02/2026	4,540	0.0003%
		25/08/2025	1,007,441	0.10%	-	1,007,441	0.07%
	Totale Pietro Salini		1,555,002	0.15%	-	2,102,563	0.14%
	TOTAL		394,982,745	38.81%		759,133,397	48.98%
Cassa Depositi e Prestiti S.p.A.	CDP Equity S.p.A.	29/04/2022	166,666,666	16.38%	28/04/2024	333,333,332	21.51%
		01/09/2022	193,931	0.02%	31/08/2024	387,862	0.02%
		01/02/2024	694,548	0.07%	01/02/2026	1,389,096	0.09%
	TOTAL	-	167,555,145	16.47%	-	335,110,290	21.62%

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webuild

emarket

edir storage

CERTIFIED

Webuild is a global leader in the construction of large, complex infrastructure projects, with a focus on sustainable mobility, hydropower, water treatment, and green buildings. A recognized leader in the water sector and active in about 50 countries, the Group employs approximately 95,000 people of over 125 nationalities. It boasts 120 years of experience with over 3,700 completed projects. Its track record includes 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 319 dams and hydropower plants. Among its most iconic projects are the Grand Ethiopian Renaissance Dam in Ethiopia, the expansion of the Panama Canal, the Long Beach International Gateway bridge in California, the Second Bosphorus Bridge in Turkey, the Sydney Metro Northwest skytrain viaduct and bridge, the Kingdom Centre skyscraper in Riyadh, and metro lines in cities such as Copenhagen, Paris, Rome, Milan, Naples, Doha, Thessaloniki, and Riyadh. Ongoing projects include the New Genoa Breakwater, the Brenner Base Tunnel, the Pedemontana Lombarda Highway, Metro di Roma's Line C, the Genoa-Milan and Naples-Bari high-speed/high-capacity railways, the Palermo-Catania-Messina high-capacity railway, the Snowy 2.0 hydropower scheme in Australia and the Dams System in Trojena in Saudi Arabia. As of December 31, 2024, the Group registered total revenues of €12 billion. As of June 30, 2025, its total order backlog stands at approximately €59 billion, with over 90% of its construction backlog related to projects linked to the United Nations Sustainable Development Goals. Listed on the Borsa Italiana stock exchange in Milan (WBD; WBD.MI; WBD.IM), it is member of the MIB ESG index of Italian companies with best ESG practices. Headquartered in Italy, it is subject to the management and coordination of Salini Costruttori S.p.A.

More information at www.webuildgroup.com

Contacts:

Media Relations

Francesca Romana Chiarano

Tel. +39 02 444 22147

email: f.chiarano@webuildgroup.com

Investor Relations

Amarilda Karaj

Tel +39 06 6776 26975

email: a.karaj@webuildgroup.com