Group 1 - Tenaris S.A. has completed the first tranche of its USD1.2 billion Share Buyback Program, amounting to USD600 million [1][2] - During this tranche, Tenaris purchased 33,059,955 ordinary shares, which is 3.08% of its total issued share capital, for approximately €516,588,880 [2] - The shares acquired in this tranche will be held in treasury and Tenaris plans to cancel all treasury shares purchased under the Program in the future [2] Group 2 - Tenaris is recognized as a leading global supplier of steel tubes and related services for the energy industry and other industrial applications [5]

LUXEMBOURG, Sept. 19, 2025 (GLOBE NEWSWIRE) -- Tenaris S.A. (NYSE and Mexico: TS and EXM Italy: TEN) (“Tenaris”, or the “Company”) announced that its indirect controlling shareholder San Faustin S.A. and its direct controlling shareholder Techint Holdings S.à r.l. (the “Reporting Persons”) filed earlier today with the SEC an amendment to their Schedule 13D, reporting that, for portfolio-management purposes and in response to Tenaris’s ongoing share repurchase program causing San Faustin’s beneficial ownersh ...

Core Points - Tenaris S.A. announced that its controlling shareholder, San Faustin S.A., has crossed a voting rights threshold due to the company's share buyback program [1] - San Faustin owns 713,605,187 shares, representing 66.82% of Tenaris's voting rights following share repurchases from June 9 to June 13, 2025 [2] - The control structure of Tenaris remains unchanged as confirmed by San Faustin [2] Company Overview - Tenaris is a leading global supplier of steel tubes and related services for the energy industry and other industrial applications [3]

Group 1 - Tenaris S.A. announced a share buyback program of up to $1.2 billion, representing approximately 74 million shares or 6.9% of its outstanding shares [1] - The buyback program is driven by significant cash flow generation and a strong balance sheet, with a maximum limit of 10% of the company's shares [2] - The program is expected to launch in June 2025 and will be executed through a primary financial institution [2] Group 2 - The buybacks may be paused or ceased at any time, subject to compliance with applicable laws and regulations [3] - Updates on the buyback program will be provided via press releases and on the Investors section of Tenaris's corporate website [3] - The buybacks will be conducted in compliance with the Market Abuse Regulation and other relevant regulations [3] Group 3 - Tenaris is a leading global supplier of steel tubes and related services for the energy industry and other industrial applications [5]