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. (TS) – Schedule 13D/A Amendment No. 11 (dated 7 July 2025)
The filing updates the ownership position of the company’s long-standing controlling group – Rocca & Partners Stichting Administratiekantoor Aandelen San Faustin (RP STAK), San Faustin S.A. and Techint Holdings S.A r.l. – in Tenaris’s ordinary shares.
- Beneficial ownership: 713,605,187 ordinary shares, representing 67.5 % of the outstanding class based on 1,071,994,930 shares issued, net of 15,396,773 treasury shares as of 4 July 2025.
- Change vs. prior filing: Ownership percentage increased by 1.02 pp (from 66.52 % to 67.54 %). The shift is solely attributable to issuer share repurchases conducted between 24 Feb – 4 Mar 2025 (2024-25 buyback) and 9 Jun – 4 Jul 2025 (2025-26 buyback); the reporting persons executed no open-market transactions.
- Voting & dispositive power: RP STAK and San Faustin report shared voting/dispositive power over the full stake, whereas Techint Holdings reports sole power.
- Organisational structure: RP STAK (Dutch foundation) controls San Faustin (Luxembourg S.A.), which wholly owns Techint Holdings (Luxembourg S.à r.l.).
- Governance update: Filing notes “certain changes in the composition of the board of directors or management” of the reporting entities; specifics are not provided here but referenced in Exhibit 99.1.
- Recent activity: No criminal or civil proceedings involving the reporting persons or their principals over the past five years.
Investment take-away: The controlling group’s stake crossed the 67 % threshold without deploying additional capital, further entrenching its majority position and influence over corporate actions requiring a super-majority vote. The increase stems from Tenaris’s ongoing buyback programmes rather than insider accumulation.
Tenaris has announced significant progress in its USD1.2 billion Share Buyback Program, reporting details of the First Tranche activities from June 16-20, 2025. During this period, the company:
- Repurchased 4,603,981 ordinary shares for €72,758,161 (USD83,850,276)
- Holds 8,759,170 treasury shares (0.82% of total issued share capital)
- Plans to execute up to USD600 million in open market purchases under the First Tranche
The company, a leading global supplier of steel tubes for the energy industry, intends to cancel the repurchased treasury shares. This buyback program, initially announced on June 6, 2025, demonstrates Tenaris's commitment to returning value to shareholders while maintaining its strong market position in the energy sector.