Tenaris S.A.

Transaction in Own Shares • Jun 14, 2024

Informazione Regolamentata n. 0602-25-2024	Data/Ora Inizio Diffusione 14 Giugno 2024 23:17:43		Euronext Milan
Societa'	:	TENARIS
Identificativo Informazione Regolamentata	:	192254
Utenza - Referente	:	TENARISN02 - Sardagna
Tipologia	:	2.4
Data/Ora Ricezione	:	14 Giugno 2024 23:17:43
Data/Ora Inizio Diffusione		14 Giugno 2024 23:17:43
Oggetto	:	Weekly Report (June 10, 2024 – June 13, 2024) on the Third Tranche of Tenaris Share Buyback Program
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Giovanni Sardagna Tenaris 1-888-300-5432 www.tenaris.com

Weekly Report (June 10, 2024 – June 13, 2024) on the Third Tranche of Tenaris Share Buyback Program

Luxembourg, June 14, 2024. - Tenaris S.A. (NYSE and Mexico: TS and EXM Italy: TEN) ("Tenaris") announced today that pursuant to its Third Tranche of the Share Buyback Program announced on May 12, 2024, covering up to \$300 million to be executed in the open market, it has repurchased the following ordinary shares from June 10 to (and including) June 13, 2024:

Date	Trading Venue	Shares Purchased	Weighted Average Price (EUR)	Purchases in EUR	Reference FX	Purchases in USD
10-Jun-2024	CEUX	299,700	14.9823	4,490,195	1.0736	4,820,665
10-Jun-2024	MTAA	582,000	14.9831	8,720,164	1.0736	9,361,968
10-Jun-2024	TQEX	18,294	14.9266	273,067	1.0736	293,164
11-Jun-2024	CEUX	330,800	14.9199	4,935,503	1.0723	5,292,333
11-Jun-2024	MTAA	690,000	14.9177	10,293,213	1.0723	11,037,385
12-Jun-2024	MTAA	340,430	14.8923	5,069,786	1.0848	5,499,699
13-Jun-2024	CEUX	14,800	14.6662	217,060	1.0770	233,773
13-Jun-2024	MTAA	692,623	14.6691	10,160,156	1.0770	10,942,520
		2,968,647	14.8752	44,159,144		47,481,506

From June 10, 2024 to (and including) June 13, 2024, the Company has purchased a total of 2,968,647 ordinary shares for a total consideration of €44,159,144, equivalent to USD47,481,506.

As of June 14, 2024, the Company held in treasury 34,447,527 ordinary shares (including 16,367,003 ordinary shares bought in the second tranche), equal to 2.96% of the total issued share capital. Tenaris intends to cancel all shares purchased under the Program 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.