Tenaris S.A. filings document the disclosures of a foreign private issuer that supplies steel tubes and related services to the energy industry and other industrial applications. Form 6-K reports include IFRS interim financial statements, quarterly results releases, Tubes segment sales volumes for seamless and welded pipe, regional sales data, non-IFRS measures, and press releases on governance and capital allocation.
Annual and meeting-related filings include the Form 20-F annual report, consolidated management report, sustainability statement, management certifications, auditor reports, shareholder meeting notices, proxy materials, share and voting-right information, and board matters. Other filings furnish material corporate development announcements and securities-transaction notices under European market-abuse rules.
Tenaris S.A. filed a report describing activity in the second tranche of its USD1.2 billion share buyback program. From February 9 to February 13, 2026, the company repurchased 11,253 ordinary shares for total consideration of €226,459, equivalent to USD269,332, in the open market.
As of February 13, 2026, Tenaris held 62,339,425 ordinary shares in treasury, representing 5.82% of its total issued share capital. The company states that it intends to cancel treasury shares purchased under its buyback programs in due course.
Tenaris S.A.’s controlling shareholder group has modestly reduced its stake through open-market sales while retaining clear control. RP STAK, San Faustin and Techint Holdings now beneficially own 692,085,486 ordinary shares, representing 68.55% of Tenaris’s outstanding ordinary shares, excluding treasury stock.
The ownership percentage fell from 69.66% to 68.55% after Techint Holdings sold 18,919,701 ordinary shares in the open market between December 15, 2025 and February 6, 2026 under a non‑discretionary accelerated share disposal agreement. This decrease was partially offset by Tenaris’s open‑market repurchase of 11,065,751 ordinary shares over a similar period.
Tenaris S.A. provided a weekly update on its Second Tranche of the USD1.2 billion share buyback program. Between December 29, 2025 and January 2, 2026, the company repurchased 3,320,025 ordinary shares for a total consideration of €54,583,501, equivalent to USD64,206,753, in the open market.
After these transactions, as of January 2, 2026, Tenaris held 62,328,172 ordinary shares in treasury, representing 5.81% 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 S.A. reported progress on the second tranche of its USD1.2 billion share buyback program. From December 22, 2025 to December 26, 2025, the company repurchased 2,408,733 ordinary shares in the open market for a total consideration of €39,385,654, equivalent to USD46,224,540. As of December 26, 2025, Tenaris held 59,008,147 ordinary shares in treasury, representing 5.50% of its total issued share capital. The company states that it intends to cancel treasury shares acquired under its buyback programs in due course.
Tenaris S.A.’s controlling shareholder group updated its ownership position in this Schedule 13D amendment. ROCCA & PARTNERS STICHTING ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN, San Faustin S.A. and Techint Holdings S.A r.l. together report beneficial ownership of 711,005,187 ordinary shares, representing 69.7% of the class.
The percentage is calculated using 1,071,994,930 issued ordinary shares, of which 51,262,421 were held by Tenaris as treasury stock as of December 12, 2025. The amendment explains that Techint Holdings sold 2,600,000 shares between December 9 and 12, 2025 under a non‑discretionary mandate on European regulated markets, and has entered into a non‑discretionary accelerated share disposal agreement to sell up to 21,000,000 additional shares from December 15, 2025 to no later than May 19, 2026, while a prior authorization requires its stake to remain at or above 67% of outstanding shares.
Tenaris S.A. reported progress on the second tranche of its previously announced USD1.2 billion share buyback program. Between November 24 and November 28, 2025, the company repurchased 4,590,225 ordinary shares for a total consideration of €78,617,466, equivalent to USD90,853,326, through open market transactions.
As of November 28, 2025, Tenaris held 41,950,073 ordinary shares in treasury, representing 3.91% of its total issued share capital. The company states that it intends to cancel treasury shares purchased under its buyback programs in due course, which would reduce the number of shares outstanding over time.
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.
Tenaris S.A. reported progress on the second tranche of its USD1.2 billion share buyback program. Between November 10 and November 14, 2025, the company repurchased 5,445 ordinary shares for a total consideration of €96,639, equivalent to USD112,053. As of November 14, 2025, Tenaris held 33,065,400 ordinary shares in treasury, representing 3.08% of its total issued share capital. The company intends to cancel treasury shares purchased under the programs in due course and continues executing repurchases in the open market under the second tranche of up to USD600 million.
Tenaris S.A. announced it will commence the second tranche of its share repurchase, covering up to USD 600 million under its previously announced USD 1.2 billion buyback program. The tranche begins on November 3, 2025 and will end no later than April 30, 2026.
Tenaris entered a non-discretionary buyback agreement with a primary financial institution, which will independently decide the timing of ordinary share purchases. The repurchases will comply with the Market Abuse Regulation 596/2014 and Commission Delegated Regulation (EU) 2016/1052, and may continue during Tenaris’s closed periods in line with these rules.
Ordinary shares repurchased under the program will be cancelled in due course. The program is carried out under the authority granted by shareholders at the general meeting held on May 6, 2025.
Tenaris S.A. furnished interim results for the nine months ended September 30, 2025. Net sales were $8,986,024, down from $9,678,708 a year earlier, while income for the period was $1,512,216 versus $1,557,642. Operating income reached $1,729,278. Basic and diluted EPS were $1.39 per share (or $2.79 per ADS).
Cash generation remained strong: net cash provided by operating activities was $1,812,402. The company paid an annual dividend of $0.83 per share and executed significant buybacks, cancelling 90,762,598 shares on May 6, 2025. Issued shares stood at 1,071,994,930, with 1,039,593,059 outstanding as of September 30, 2025. Shareholders’ equity totaled $17,041,102.
By region, North America sales were $4,216,456; South America $1,809,385; Europe $680,640; Asia Pacific, Middle East and Africa $2,279,543. The U.S. antidumping review set Tenaris’s Argentina import rate at 6.76% (from 78.30%), with a gain recognized; Mexico’s final rate was 26.10%, which Tenaris indicated it is appealing. Notes also describe ongoing legal matters and Argentine FX measures affecting subsidiaries.