Tenaris SA
TS- Exchange
- NYSE
- Industry
- Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens)
- SEC CIK
- 0001190723
No open-market purchases or sales by Tenaris SA insiders were filed in the last 90 days; 285 institutions reported holding it in 13F filings for Q2 2026, worth $2.13B in total; no superinvestor holds it.
Other share classesTNRSF
13F holders, Q2 2025
Institutional positions in Tenaris SA as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 223
- −1 vs. Q1 2025
- Shares held
- 45.9M
- −5.86M (−11.3%) vs. Q1 2025
- Total value
- $1.71B
- −$296.5M (−14.8%) vs. Q1 2025
- New holders
- 37
- 89 more added
- Sold out
- 38
- 67 more reduced
3 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting TS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 285 | $2.13B |
| Q1 2026 | 264 | $2.29B |
| Q4 2025 | 229 | $1.27B |
| Q3 2025 | 223 | $1.28B |
| Q2 2025 | 223 | $1.71B |
| Q1 2025 | 227 | $2.01B |
| Q4 2024 | 234 | $1.90B |
| Q3 2024 | 201 | $1.60B |
| Q2 2024 | 224 | $1.70B |
| Q1 2024 | 236 | $2.19B |
| Q4 2023 | 222 | $2.16B |
| Q3 2023 | 216 | $1.94B |
| Q2 2023 | 201 | $1.93B |
| Q1 2023 | 227 | $1.74B |
| Q4 2022 | 218 | $2.07B |
| Q3 2022 | 179 | $1.66B |
| Q2 2022 | 182 | $1.61B |
| Q1 2022 | 182 | $2.08B |
| Q4 2021 | 144 | $1.04B |
| Q3 2021 | 130 | $1.03B |
| Q2 2021 | 143 | $1.19B |
| Q1 2021 | 127 | $1.32B |
Institutions, Q2 2025
Shares, value and share of portfolio for each institution holding Tenaris SA; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Assetmark, Inc | 469,229 | $17.5M | 0.04% | +19,391+4.3% | Added |
| Merewether Investment Management, LP | 533,515 | $20.0M | 0.57% | −760,218−58.8% | Reduced |
| Medina Singh Partners, LLC | 556,052 | $20.8M | 5.69% | +38,259+7.4% | Added |
| Bank of America Corp | 595,604 | $22.3M | 0.00% | +191,858+47.5% | Added |
| BlackRock, Inc. | 627,099 | $23.5M | 0.00% | −30,069−4.6% | Reduced |
| SIR Capital Management, L.P. | 688,935 | $25.8M | 2.30% | +508,028+280.8% | Added |
| Massachusetts Financial Services Co | 737,760 | $27.6M | 0.01% | −17,234−2.3% | Reduced |
| Millennium Management LLC | 776,963 | $29.1M | 0.03% | −400,296−34.0% | Reduced |
| Capstone Investment Advisors, LLC | 921,547 | $34.5M | 0.29% | +370,667+67.3% | Added |
| Goldman Sachs Group Inc | 930,231 | $34.8M | 0.01% | −458,195−33.0% | Reduced |
| Dimensional Fund Advisors LP | 941,466 | $35.2M | 0.01% | +366,651+63.8% | Added |
| Morgan Stanley | 1,118,756 | $41.8M | 0.00% | −712,550−38.9% | Reduced |
| UBS Group AG | 1,584,876 | $59.3M | 0.01% | +498,770+45.9% | Added |
| Van Eck Associates Corp | 1,615,694 | $60.4M | 0.07% | −202,205−11.1% | Reduced |
| Price T Rowe Associates Inc | 1,697,997 | $63.5M | 0.01% | −5,661−0.3% | Reduced |
| Citadel Advisors LLC | 1,722,807 | $64.4M | 0.06% | −2,043,503−54.3% | Reduced |
| Encompass Capital Advisors LLC | 1,732,781 | $64.8M | 2.61% | −364,759−17.4% | Reduced |
| Balyasny Asset Management LLC | 1,767,924 | $66.1M | 0.15% | +53,155+3.1% | Added |
| Wellington Management Group LLP | 2,099,275 | $78.5M | 0.01% | −227,842−9.8% | Reduced |
| FMR LLC | 2,298,468 | $86.0M | 0.00% | −26,010−1.1% | Reduced |
| Renaissance Technologies LLC | 2,891,544 | $108.1M | 0.14% | +188,700+7.0% | Added |
| Sourcerock Group LLC | 3,086,075 | $115.4M | 6.02% | +635,817+25.9% | Added |
| Westwood Global Investments, LLC | 7,831,367 | $292.9M | 7.90% | +158,608+2.1% | Added |
| Alua Capital Management LP | 0 | $0 | 0.00% | −2,387,363−100.0% | Sold out |
| Holocene Advisors, LP | 0 | $0 | 0.00% | −1,199,061−100.0% | Sold out |
| Orbis Allan Gray Ltd | 0 | $0 | 0.00% | −377,357−100.0% | Sold out |
| Pacer Advisors, Inc. | 0 | $0 | 0.00% | −288,819−100.0% | Sold out |
| Capital Fund Management S.A. | 0 | $0 | 0.00% | −78,120−100.0% | Sold out |
| Erste Asset Management GmbH | 0 | $0 | 0.00% | −60,000−100.0% | Sold out |
| Toroso Investments, LLC | 0 | $0 | 0.00% | −24,744−100.0% | Sold out |
| Old Mission Capital LLC | 0 | $0 | 0.00% | −14,409−100.0% | Sold out |
| Eqis Capital Management, Inc. | 0 | $0 | 0.00% | −14,408−100.0% | Sold out |
| Yorktown Management & Research Co Inc | 0 | $0 | 0.00% | −11,300−100.0% | Sold out |
| FORA Capital, LLC | 0 | $0 | 0.00% | −10,753−100.0% | Sold out |
| Shelton Capital Management | 0 | $0 | 0.00% | −10,554−100.0% | Sold out |
| Envestnet Asset Management Inc | 0 | $0 | 0.00% | −8,777−100.0% | Sold out |
| Cresset Asset Management, LLC | 0 | $0 | 0.00% | −7,995−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −6,802−100.0% | Sold out |
| Park Avenue Securities LLC | 0 | $0 | 0.00% | −6,256−100.0% | Sold out |
| Ballentine Partners, LLC | 0 | $0 | 0.00% | −5,381−100.0% | Sold out |
| D'Orazio & Associates, Inc. | 0 | $0 | 0.00% | −5,342−100.0% | Sold out |
| Clarius Group, LLC | 0 | $0 | 0.00% | −5,295−100.0% | Sold out |
| Integrated Wealth Concepts LLC | 0 | $0 | 0.00% | −5,186−100.0% | Sold out |
| Total Wealth Planning & Management, Inc. | 0 | $0 | 0.00% | −5,167−100.0% | Sold out |
| Boston Private Wealth LLC | 0 | $0 | 0.00% | −2,188−100.0% | Sold out |
| Mirae Asset Global ETFs Holdings Ltd. | 0 | $0 | 0.00% | −1,512−100.0% | Sold out |
| Harbour Investments, Inc. | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −856−100.0% | Sold out |
| Wayfinding Financial, LLC | 0 | $0 | 0.00% | −349−100.0% | Sold out |
| Stonebridge Financial Group, LLC | 0 | $0 | 0.00% | −305−100.0% | Sold out |
| Spire Wealth Management | 0 | $0 | 0.00% | −143−100.0% | Sold out |
| Coldstream Capital Management Inc | 0 | $0 | 0.00% | −124−100.0% | Sold out |
| Atala Financial Inc | 0 | $0 | 0.00% | −91−100.0% | Sold out |
| Salem Investment Counselors Inc | 0 | $0 | 0.00% | −89−100.0% | Sold out |
| Continuum Advisory, LLC | 0 | $0 | 0.00% | −63−100.0% | Sold out |
| Albion Financial Group | 0 | $0 | 0.00% | −43−100.0% | Sold out |
| Legacy Wealth Managment, LLC | 0 | $0 | 0.00% | −27−100.0% | Sold out |
| Creative Financial Designs Inc | 0 | $0 | 0.00% | −24−100.0% | Sold out |
| Cherry Tree Wealth Management, LLC | 0 | $0 | 0.00% | −24−100.0% | Sold out |
| Provenance Wealth Advisors, LLC | 0 | $0 | 0.00% | −19−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| CAPROCK Group, Inc. | – | – | – | – | Not filed |
| Lindbrook Capital, LLC | – | – | – | – | Not filed |
| Sofos Investments, Inc. | – | – | – | – | Not filed |