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Webuild

Declaration of Voting Results & Voting Rights Announcements Dec 5, 2025

4062_rns_2025-12-05_8681974e-4d83-4592-a5e3-a3a3ded67764.pdf

Declaration of Voting Results & Voting Rights Announcements

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

Milan – December 5, 2025 - 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 46.71%
05/09/2022 175,877 0.02% 04/09/2024 351,754 0.02%
06/02/2024 665,286 0.06% - 665,286 0.04%
28/04/2025 25,000,000 2.46% - 25,000,000 1.62%
24/06/2025 4,824,652 0.47% - 4,824,652 0.31%
Totale Salini S.p.A. 392,351,587 38.55% 754,213,236 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% - 6,001 0.0004%
Totale Athena 1,076,156 0.11% 2,146,311 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% - 2,270 0.0001%
25/08/2025 1,007,441 0.10% - 1,007,441 0.07%
Totale Pietro Salini 1,555,002 0.15% - 2,100,293 0.14%
TOTAL 394,982,745 38.81% 758,459,840 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 21.52%
01/09/2022 193,931 0.02% 31/08/2024 387,862 0.02%
01/02/2024 694,548 0.07% - 694,548 0.05%
TOTAL - 167,555,145 16.47% - 334,415,742 21.59%

More information at www.webuildgroup.com

Contacts: Media Relations Investor Relations Francesca Romana Chiarano Amarilda Karaj Tel. +39 338 247 4827 Tel +39 06 6776 26975

email: [email protected] email: [email protected]

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