Tenaris (TS) buys back 4.29M shares in USD1.2B program

Tenaris S.A. filed a report updating investors on activity in the second tranche of its previously announced USD1.2 billion share buyback program.

Accepted by SEC EDGAR 11/21/2025 - 08:38 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Tenaris S.A. filed a report updating investors on activity in the second tranche of its previously announced USD1.2 billion share buyback program. From November 17 to November 21, 2025, the company repurchased 4,294,448 ordinary shares for a total consideration of €74,766,897, equivalent to USD86,525,791, in open-market transactions.

As of November 21, 2025, Tenaris held 37,359,848 ordinary shares in treasury, representing 3.49% of its total issued share capital. The company states that it intends to cancel the treasury shares purchased under its buyback programs in due course. Tenaris describes itself as a leading global supplier of steel tubes and related services for the energy industry and certain other industrial applications.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Tenaris (TS) report in its latest Form 6-K?

Tenaris reported weekly activity for the second tranche of its share buyback program, detailing the number of ordinary shares repurchased and the total amount spent between November 17 and November 21, 2025.

How many Tenaris shares were repurchased between November 17 and 21, 2025?

Between November 17 and November 21, 2025, Tenaris repurchased 4,294,448 ordinary shares under its second tranche share buyback program.

How much did Tenaris spend on the weekly share buyback for TS shares?

Tenaris spent a total consideration of €74,766,897, equivalent to USD86,525,791, to repurchase 4,294,448 ordinary shares during the week of November 17–21, 2025.

What is the size of Tenaris’s current share buyback program?

The weekly report relates to the second tranche of a USD1.2 billion share buyback program, with this tranche covering up to USD600 million to be executed in the open market.

How many Tenaris shares are currently held in treasury and what percentage of capital is this?

As of November 21, 2025, Tenaris held 37,359,848 ordinary shares in treasury, equal to 3.49% of its total issued share capital.

What does Tenaris plan to do with the treasury shares it is buying back?

Tenaris states that it intends to cancel the treasury shares purchased under its share buyback programs in due course.

Where can investors find detailed transaction data on Tenaris’s buyback?

Detailed information on the individual buyback transactions is available on Tenaris’s corporate website under the Share Buyback Program section.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FORM 6 - K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Report of Foreign Private Issuer

Pursuant to Rule 13a - 16 or 15d - 16 of

the Securities Exchange Act of 1934

As of November 21, 2025

TENARIS, S.A.

(Translation of Registrant's name into English)

26, Boulevard Royal, 4th floor

L-2449 Luxembourg

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or 40-F.

Form 20-F  ✓  Form 40-F       

The attached material is being furnished to the Securities and Exchange Commission pursuant to Rule 13a-16 and Form 6-K under the Securities Exchange Act of 1934, as amended. This report contains Tenaris’s Weekly Report (November 17, 2025 – November 21, 2025) on the Second Tranche of Tenaris Share Buyback Program.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: November 21, 2025

Tenaris, S.A.

By: /s/ Giovanni Sardagna

Giovanni Sardagna

Investor Relations Officer

Giovanni Sardagna

Tenaris

1-888-300-5432

www.tenaris.com

Weekly Report (November 17, 2025 – November 21, 2025) on the Second Tranche of Tenaris Share Buyback Program.

Luxembourg, November 21, 2025. - Tenaris S.A. (NYSE and Mexico: TS and EXM Italy: TEN) (“Tenaris”) announced today that pursuant to its Second Tranche of the USD1.2 billion Share Buyback Program announced on November 2, 2025, covering up to USD600 million to be executed in the open market, it has repurchased the following ordinary shares from November 17, 2025 to (and including) November 21, 2025:

From November 17, 2025 to (and including) November 21, 2025, the Company has purchased a total of 4,294,448 ordinary shares for a total consideration of €74,766,897, equivalent to USD86,525,791.

As of November 21, 2025, the Company held in treasury 37,359,848 ordinary shares equal to 3.49% 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.