Tenaris S.A. Reports on Share Buyback Program

TL;DR

Tenaris's share buyback program update is out - check the latest on their second tranche.

AI Summary

Tenaris S.A. filed a Form 6-K on December 15, 2025, reporting on its Weekly Report from December 8-12, 2025. This report details the Second Tranche of Tenaris's Share Buyback Program. The filing was made as of December 12, 2025.

Why It Matters

This filing provides an update on Tenaris's share buyback activities, which can impact the company's stock price and shareholder value.

Risk Assessment

Risk Level: low — The filing is a routine update on a share buyback program and does not contain significant new financial or operational risks.

Key Players & Entities

• TENARIS SA (company) — Registrant
• Giovanni Sardagna (person) — Investor Relations Officer
• December 12, 2025 (date) — Filing date and report period end
• December 8, 2025 (date) — Report period start

FAQ

Filing Documents

• f6k_121225.htm (6-K) — 10KB
• hdr1.jpg (GRAPHIC) — 3KB
• hdr2.jpg (GRAPHIC) — 2KB
• table.jpg (GRAPHIC) — 113KB
• hdr3.jpg (GRAPHIC) — 1KB
• 0001171843-25-007928.txt ( ) — 176KB

From the Filing

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 December 12, 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 (December 8, 2025 – December 12, 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: December 12, 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 (December 8, 2025 – December 12, 2025) on the Second Tranche of Tenaris Share Buyback Program. Luxembourg, December 12, 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 December 8, 2025 to (and including) December 12, 2025: From December 8, 2025 to (and including) December 12, 2025, the Company has purchased a total of 4,923,147 ordinary shares for a total consideration of €85,819,351 equivalent to USD100,077,422. As of December 12, 2025, the Company held in treasury 51,262,421 ordinary shares equal to 4.78% 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 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.

View Full Filing

View this 6-K filing on SEC EDGAR