Tenaris TS Institutional Ownership

Ownership Summary

Tenaris Sa (NYSE:TS) has 259 institutional investors with active 13F positions as of March 2026.

• These investors held 3.9% of outstanding shares in March 2026, up from 3.0% in December 2025.
• They increased total shares held in Tenaris by 31.1% from the prior quarter, while the number of investors in TS increased 14.1% year over year.
• Of these 259 funds, 157 grew their exposure to Tenaris, 65 cut back, and 37 maintained positions.
• Institutional investors collectively held 39.32Mn shares in Tenaris as of March 2026, up by 9.33Mn shares quarter on quarter, and down 15.86Mn shares year over year.
• FMR LLC leads ownership in TS with 8.25Mn shares as of March 31, 2026, equal to 0.82% of outstanding shares.
• The most significant purchases of TS for the quarter ending March 2026 came from FMR LLC (6.05Mn), PRICE T ROWE ASSOCIATES INC /MD/ (1.45Mn), DRIEHAUS CAPITAL MANAGEMENT LLC (888.35K), VAN ECK ASSOCIATES CORP (873.85K), Invesco Ltd. (622.27K).
• The largest sellers of Tenaris for the quarter ending March 2026 were Goldman Sachs Group Inc (918.26K), CITADEL ADVISORS LLC (639.97K), Westwood Global Investments, LLC (598.69K), Medina Value Partners, LLC (308.13K), WELLINGTON MANAGEMENT GROUP LLP (277.1K).
• According to Business Quant data, leading holders of TS for March 2026 are FMR LLC (8.25Mn), Westwood Global Investments, LLC (6.67Mn), RENAISSANCE TECHNOLOGIES LLC (3.2Mn), VAN ECK ASSOCIATES CORP (2.89Mn), WELLINGTON MANAGEMENT GROUP LLP (2.41Mn), PRICE T ROWE ASSOCIATES INC /MD/ (1.45Mn), Morgan Stanley (1.18Mn), Invesco Ltd. (1.17Mn), DIMENSIONAL FUND ADVISORS LP (1.12Mn), DRIEHAUS CAPITAL MANAGEMENT LLC (888.35K).