Tenaris details latest weekly share buybacks

Tenaris S.A. reported weekly activity in the second tranche of its USD1.2 billion share buyback program, repurchasing 2,573 ordinary shares from February 23–27, 2026 for €57,617, equivalent to USD67,913.

Accepted by SEC EDGAR 03/03/2026 - 05:31 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Tenaris S.A. reported weekly activity in the second tranche of its USD1.2 billion share buyback program, repurchasing 2,573 ordinary shares from February 23–27, 2026 for €57,617, equivalent to USD67,913.

As of March 3, 2026, Tenaris held 62,355,174 ordinary shares in treasury, representing 5.82% of its total issued share capital, and it intends to cancel shares purchased under the programs in due course.

FAQ

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What did Tenaris (TNRSF) report in its latest share buyback update?

Tenaris reported repurchasing 2,573 ordinary shares during February 23–27, 2026 for €57,617, about USD67,913. This activity is part of the second tranche of its USD1.2 billion share buyback program targeting up to USD600 million in open-market purchases.

How many Tenaris (TNRSF) shares are currently held in treasury?

As of March 3, 2026, Tenaris held 62,355,174 ordinary shares in treasury, equal to 5.82% of its total issued share capital. These treasury shares result from ongoing repurchases under the company’s multi-tranche share buyback program.

What is the size of Tenaris’s (TNRSF) overall share buyback program?

Tenaris has a USD1.2 billion share buyback program, with the second tranche covering up to USD600 million in open-market purchases. The weekly report details progress within this tranche rather than changing the total program size or terms already announced.

What period does this Tenaris (TNRSF) weekly buyback report cover?

The weekly report covers Tenaris share repurchases executed from February 23, 2026 to and including February 27, 2026. It summarizes the number of ordinary shares bought and the total cash consideration paid during that specific five-day trading period.

What does Tenaris (TNRSF) plan to do with the repurchased shares?

Tenaris intends to cancel treasury shares purchased under its buyback programs in due course. Canceling repurchased shares permanently removes them from circulation, which can reduce the number of shares outstanding and potentially increase each remaining share’s proportional claim on earnings.

Where can investors find detailed Tenaris (TNRSF) buyback transaction data?

Detailed information on individual Tenaris buyback transactions is available on the company’s corporate website under the Share Buyback Program section. The site provides transaction-level data complementing the summarized weekly figures disclosed in this report for transparency.

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 March 3, 2026

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 _Ö_ 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 (February 23 2026 – February 27, 2026) 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: March 3, 2026

Tenaris, S.A.

By: /s/ Giovanni Sardagna

Giovanni Sardagna

Investor Relations Officer

 

Giovanni Sardagna

Tenaris

1-888-300-5432

www.tenaris.com

Weekly Report (February 23, 2026 – February 27, 2026) on the Second Tranche of Tenaris Share Buyback Program.

Luxembourg, March 3, 2026. - 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 February 23, 2026 to (and including) February 27, 2026:

From February 23, 2026 to (and including) February 27, 2026, the Company has purchased a total of 2,573 ordinary shares for a total consideration of €57,617 equivalent to USD67,913.

As of March 3, 2026, the Company held in treasury 62,355,174 ordinary shares equal to 5.82% 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.