Welcome to our dedicated page for Tenaris SEC filings (Ticker: TNRSF), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The SEC filings page for Tenaris S.A. (TNRSF) provides access to the company’s regulatory disclosures as a foreign private issuer. Tenaris files annual reports under Form 20-F and furnishes current information on Form 6-K pursuant to Rule 13a-16 of the Securities Exchange Act of 1934. In these filings, Tenaris describes itself as a leading global supplier of steel tubes and related services for the world’s energy industry and certain other industrial applications.
Recent Form 6-K reports focus on Tenaris’s Second Tranche of a USD 1.2 billion share buyback program, which covers up to USD 600 million to be executed in the open market. Weekly filings outline the volume of ordinary shares repurchased during specified periods, the total consideration paid and the proportion of the company’s issued share capital held in treasury. Tenaris states that treasury shares acquired under the programs are intended to be cancelled in due course, and that detailed transaction data is available in the share buyback program section of its investor relations materials.
Another key element in Tenaris’s filings is ownership reporting. A Form 6-K dated as of December 17, 2025, describes how repurchased shares reached a threshold of 5% of voting rights and references a Schedule 13D amendment filed by the company’s indirect controlling shareholder, San Faustin S.A., and direct controlling shareholder, Techint Holdings S.à r.l. This amendment discusses share sales under a non-discretionary sales mandate and an accelerated share disposal agreement with a European financial institution.
On this page, users can review Tenaris’s Form 6-K submissions as they appear in the SEC’s EDGAR system. Stock Titan’s AI-powered tools can help summarize lengthy filings, highlight information on share repurchases, treasury shares and controlling shareholder activity, and make the structure and implications of these disclosures easier to understand.
Tenaris reported steady 2025 results with strong cash generation despite softer demand and U.S. trade tariffs. For Q4 2025, net sales reached $2,995 million, up 5% year on year, while earnings per share were $0.44, down from $0.47, as EBITDA margin eased to 23.9%.
For full-year 2025, net sales declined 4% to $11,981 million, but earnings per share edged up to $1.83. EBITDA was $2,899 million with a margin of 24.2%, reflecting resilient profitability in the Tubes segment even as prices fell in several regions.
Free cash flow reached $2.0 billion in 2025, and net cash stood at $3.3 billion at December 31, after $900 million in dividends and $1,362 million in share buybacks. The board plans to propose a total annual dividend of $0.89 per share, including the $0.29 already paid.
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. reported weekly activity for the second tranche of its USD1.2 billion share buyback program, which contemplates up to USD600 million to be executed in the open market. From December 15, 2025 to (and including) December 19, 2025, the company repurchased 5,336,993 ordinary shares for a total consideration of €89,794,646, equivalent to USD105,511,681.
As of December 19, 2025, Tenaris held 56,599,414 ordinary shares in treasury, representing 5.28% of its total issued share capital, and it intends to cancel the treasury shares purchased under its buyback programs in due course. The company has made detailed transaction information available on its website and notes that its outlook is subject to risks including uncertainty in future oil and gas prices and related investment spending.
Tenaris S.A. reports that its share buyback program has brought the proportion of its own ordinary shares held in treasury to 5.07% of Tenaris’s voting rights. These repurchased shares are held in treasury with their voting rights suspended and are expected to be cancelled in due course.
Tenaris also notes that its indirect controlling shareholder San Faustin S.A. and direct controlling shareholder Techint Holdings S.à r.l. filed an amended Schedule 13D. Techint Holdings sold 2,600,000 Tenaris ordinary shares between December 9 and 12, 2025 and entered into an accelerated share disposal agreement with a European bank to sell up to 21,000,000 ordinary shares between December 15, 2025 and no later than May 19, 2026, under an authorization that does not allow its ownership stake in Tenaris to fall below 67% of outstanding ordinary shares.
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 weekly progress on the second tranche of its USD1.2 billion share buyback program. Between December 8 and December 12, 2025, the company repurchased 4,923,147 ordinary shares for a total consideration of €85,819,351, equivalent to USD100,077,422.
This second tranche covers up to USD600 million of open-market repurchases under the broader program. As of December 12, 2025, Tenaris held 51,262,421 ordinary shares in treasury, equal to 4.78% of its total issued share capital, and it intends to cancel shares purchased under the programs in due course.
Tenaris S.A. reported progress on the second tranche of its USD1.2 billion share buyback program. Between December 1 and December 5, 2025, the company repurchased 4,389,201 ordinary shares for a total consideration of €76,801,289, equivalent to USD89,371,864, through open-market purchases.
As of December 5, 2025, Tenaris held 46,339,274 ordinary shares in treasury, representing 4.32% of its total issued share capital. The company states that it intends to cancel treasury shares acquired under its buyback programs in due course, which would reduce the number of shares outstanding over time.