Tenaris S.A.

Transaction in Own Shares • Jul 12, 2025

Informazione Regolamentata n. 0602-24-2025		Data/Ora Inizio Diffusione 12 Luglio 2025 00:31:08	Euronext Milan
Societa'	:	TENARIS
Identificativo Informazione Regolamentata	:	207973
Utenza - referente		TENARISN02 - Sardagna Giovanni
Tipologia	:	2.4
Data/Ora Ricezione	:	12 Luglio 2025 00:31:08
Data/Ora Inizio Diffusione	:	12 Luglio 2025 00:31:07
Oggetto	:	Weekly Report (July 7, 2025 – July 11, 2025) on the First Tranche of Tenaris Share Buyback Program.
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Giovanni Sardagna Tenaris 1-888-300-5432 www.tenaris.com

Weekly Report (July 7, 2025 – July 11, 2025) on the First Tranche of Tenaris Share Buyback Program.

Luxembourg, July 11, 2025. - Tenaris S.A. (NYSE and Mexico: TS and EXM Italy: TEN) ("Tenaris") announced today that pursuant to its First Tranche of the USD1.2 billion Share Buyback Program announced on June 6, 2025, covering up to USD 600 million to be executed in the open market, it has repurchased the following ordinary shares from July 7, 2025 to (and including) July 11, 2025:

Date	Trading Venue	Shares Purchased	Weighted Average Price (EUR)	Purchases in EUR	Reference F X	Purchases in USD
07-jul-25	MTAA	220,000	16.2822	3,582,084	1.1738	4,204,650
07-jul-25	CEUX	86,855	16.2815	1,414,130	1.1738	1,659,905
08-jul-25	MTAA	241,613	16.3908	3,960,230	1.1692	4,630,301
09-jul-25	MTAA	150,000	16.5644	2,484,660	1.1715	2,910,779
10-jul-25	MTAA	447,139	16.3318	7,302,585	1.1678	8,527,958
10-jul-25	CEUX	150,000	16.3254	2,448,810	1.1678	2,859,720
11-jul-25	MTAA	349,723	16.3968	5,734,338	1.1693	6,705,162
11-jul-25	CEUX	179,655	16.3516	2,937,647	1.1693	3,434,990
		1,824,985	16.3642	29,864,484		34,933,467

From July 7, 2025 to (and including) July 11, 2025, the Company has purchased a total of 1,824,985 ordinary shares for a total consideration of €29,864,484, equivalent to USD34,933,467.

As of July 11, 2025, the Company held in treasury 17,221,758 ordinary shares equal to 1.61% of the total issued share capital.

Tenaris intends to cancel treasury shares purchased under the Programs in due course.

Details of the above transactions, are available on Tenaris's corporate website under the Share Buyback Program Section https://ir.tenaris.com/share-buyback-program.

Some of the statements contained in this press release are "forward-looking statements". Forward-looking statements are based on management's current views and assumptions and involve known and unknown risks that could cause actual results, performance or events to differ materially from those expressed or implied by those statements. These risks include but are not limited to risks arising from uncertainties as to future oil and gas prices and their impact on investment programs by oil and gas companies.

Tenaris is a leading global supplier of steel tubes and related services for the world's energy industry and certain other industrial applications.

Numero di Pagine: 4