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 |
|---|---|---|---|---|---|
| Westwood Global Investments, LLC | 7,831,367 | $292.9M | 7.90% | +158,608+2.1% | Added |
| Sourcerock Group LLC | 3,086,075 | $115.4M | 6.02% | +635,817+25.9% | Added |
| Renaissance Technologies LLC | 2,891,544 | $108.1M | 0.14% | +188,700+7.0% | Added |
| FMR LLC | 2,298,468 | $86.0M | 0.00% | −26,010−1.1% | Reduced |
| Wellington Management Group LLP | 2,099,275 | $78.5M | 0.01% | −227,842−9.8% | Reduced |
| Balyasny Asset Management LLC | 1,767,924 | $66.1M | 0.15% | +53,155+3.1% | Added |
| Encompass Capital Advisors LLC | 1,732,781 | $64.8M | 2.61% | −364,759−17.4% | Reduced |
| Citadel Advisors LLC | 1,722,807 | $64.4M | 0.06% | −2,043,503−54.3% | Reduced |
| Price T Rowe Associates Inc | 1,697,997 | $63.5M | 0.01% | −5,661−0.3% | Reduced |
| Van Eck Associates Corp | 1,615,694 | $60.4M | 0.07% | −202,205−11.1% | Reduced |
| UBS Group AG | 1,584,876 | $59.3M | 0.01% | +498,770+45.9% | Added |
| Morgan Stanley | 1,118,756 | $41.8M | 0.00% | −712,550−38.9% | Reduced |
| Dimensional Fund Advisors LP | 941,466 | $35.2M | 0.01% | +366,651+63.8% | Added |
| Goldman Sachs Group Inc | 930,231 | $34.8M | 0.01% | −458,195−33.0% | Reduced |
| Capstone Investment Advisors, LLC | 921,547 | $34.5M | 0.29% | +370,667+67.3% | Added |
| Millennium Management LLC | 776,963 | $29.1M | 0.03% | −400,296−34.0% | Reduced |
| Massachusetts Financial Services Co | 737,760 | $27.6M | 0.01% | −17,234−2.3% | Reduced |
| SIR Capital Management, L.P. | 688,935 | $25.8M | 2.30% | +508,028+280.8% | Added |
| BlackRock, Inc. | 627,099 | $23.5M | 0.00% | −30,069−4.6% | Reduced |
| Bank of America Corp | 595,604 | $22.3M | 0.00% | +191,858+47.5% | Added |
| Medina Singh Partners, LLC | 556,052 | $20.8M | 5.69% | +38,259+7.4% | Added |
| Merewether Investment Management, LP | 533,515 | $20.0M | 0.57% | −760,218−58.8% | Reduced |
| Assetmark, Inc | 469,229 | $17.5M | 0.04% | +19,391+4.3% | Added |
| Abc Arbitrage SA | 467,268 | $17.5M | 2.00% | +334,755+252.6% | Added |
| Harding Loevner LP | 450,593 | $16.9M | 0.11% | −145,053−24.4% | Reduced |
| Freestone Grove Partners LP | 362,510 | $13.6M | 0.10% | +362,510 | New |
| Kiltearn Partners LLP | 319,559 | $12.0M | 2.40% | +147,600+85.8% | Added |
| Optiver Holding B.V. | 315,703 | $11.8M | 0.32% | +216,428+218.0% | Added |
| Royal Bank of Canada | 300,381 | $11.2M | 0.00% | −152,454−33.7% | Reduced |
| Jane Street Group, LLC | 295,255 | $11.0M | 0.02% | +245,552+494.0% | Added |
| Grantham, Mayo, Van Otterloo & Co. LLC | 253,867 | $9.49M | 0.03% | +40,293+18.9% | Added |
| Jump Financial, LLC | 250,800 | $9.38M | 0.12% | +250,800 | New |
| Trexquant Investment LP | 243,793 | $9.12M | 0.10% | +243,793 | New |
| Cubist Systematic Strategies, LLC | 243,360 | $9.10M | 0.10% | +243,360 | New |
| Quadrature Capital Ltd | 456,997 | $8.82M | 0.15% | −540,610−54.2% | Reduced |
| Northern Trust Corp | 230,648 | $8.63M | 0.00% | −231,894−50.1% | Reduced |
| D. E. Shaw & Co., Inc. | 222,011 | $8.30M | 0.01% | +58,605+35.9% | Added |
| Legal & General Group Plc | 206,897 | $7.74M | 0.00% | −9,642−4.5% | Reduced |
| Lighthouse Investment Partners, LLC | 190,000 | $7.11M | 0.31% | +85,000+81.0% | Added |
| Aventail Capital Group, LP | 185,524 | $6.94M | 0.31% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 148,468 | $5.55M | 0.01% | −16,762−10.1% | Reduced |
| State Street Corp | 146,229 | $5.47M | 0.00% | +146,229 | New |
| Boothbay Fund Management, LLC | 138,741 | $5.19M | 0.16% | +13,279+10.6% | Added |
| Ethic Inc. | 123,531 | $4.56M | 0.08% | +10,397+9.2% | Added |
| Silvercrest Asset Management Group LLC | 109,521 | $4.10M | 0.03% | +11,860+12.1% | Added |
| UBS Asset Management Americas Inc | 106,460 | $3.98M | 0.00% | −33,094−23.7% | Reduced |
| Verition Fund Management LLC | 101,202 | $3.78M | 0.02% | −63,394−38.5% | Reduced |
| SummitTX Capital, L.P. | 91,784 | $3.43M | 0.15% | −15,782−14.7% | Reduced |
| ExodusPoint Capital Management, LP | 88,385 | $3.31M | 0.04% | −63,699−41.9% | Reduced |
| First Trust Advisors LP | 86,777 | $3.25M | 0.00% | +73,107+534.8% | Added |
| O'Shaughnessy Asset Management, LLC | 76,918 | $2.88M | 0.02% | −4,072−5.0% | Reduced |
| Interval Partners, LP | 76,483 | $2.86M | 0.07% | +60,676+383.9% | Added |
| Engineers Gate Manager LP | 72,274 | $2.70M | 0.03% | +59,080+447.8% | Added |
| Invesco Ltd. | 69,316 | $2.59M | 0.00% | −2,475−3.4% | Reduced |
| Quantinno Capital Management LP | 67,252 | $2.52M | 0.01% | +8,618+14.7% | Added |
| Campbell & CO Investment Adviser LLC | 65,992 | $2.47M | 0.16% | +2,174+3.4% | Added |
| Clear Street Markets LLC | 61,290 | $2.29M | 0.82% | +61,290 | New |
| Manning & Napier Advisors LLC | 60,136 | $2.25M | 0.03% | +13,388+28.6% | Added |
| Ruffer LLP | 59,349 | $2.22M | 0.10% | 00.0% | Unchanged |
| QRG Capital Management, Inc. | 57,753 | $2.16M | 0.02% | −22,585−28.1% | Reduced |
| Two Sigma Investments, LP | 57,194 | $2.14M | 0.00% | −20,600−26.5% | Reduced |
| GTS Securities LLC | 54,421 | $2.04M | 0.09% | +54,421 | New |
| Citigroup Inc | 49,537 | $1.85M | 0.00% | −29,829−37.6% | Reduced |
| BNP Paribas Arbitrage, SA | 48,227 | $1.80M | 0.00% | −634,840−92.9% | Reduced |
| Highland Capital Management, LLC | 48,035 | $1.80M | 0.10% | −1,305−2.6% | Reduced |
| Crossmark Global Holdings, Inc. | 44,270 | $1.66M | 0.03% | +5,371+13.8% | Added |
| Charles Schwab Investment Management Inc | 42,554 | $1.59M | 0.00% | +12,335+40.8% | Added |
| New York State Common Retirement Fund | 41,145 | $1.54M | 0.00% | +41,145 | New |
| Integrated Quantitative Investments LLC | 41,145 | $1.54M | 0.45% | +41,145 | New |
| Creative Planning | 40,837 | $1.53M | 0.00% | +4,705+13.0% | Added |
| AQR Capital Management LLC | 39,905 | $1.49M | 0.00% | +16,243+68.6% | Added |
| Pathstone Holdings, LLC | 39,594 | $1.48M | 0.01% | +4,570+13.0% | Added |
| Advisor Group Holdings, Inc. | 36,722 | $1.43M | 0.00% | +34,969+1,994.8% | Added |
| Mariner, LLC | 34,105 | $1.27M | 0.00% | +5,916+21.0% | Added |
| Exencial Wealth Advisors, LLC | 32,762 | $1.23M | 0.04% | +1,409+4.5% | Added |
| Guggenheim Capital LLC | 31,700 | $1.19M | 0.01% | +9,388+42.1% | Added |
| KLP Kapitalforvaltning AS | 30,000 | $1.12M | 0.00% | +30,000 | New |
| Ashton Thomas Private Wealth, LLC | 29,511 | $1.10M | 0.04% | +1,080+3.8% | Added |
| Graham Capital Management, L.P. | 29,409 | $1.10M | 0.03% | +29,409 | New |
| Capital Insight Partners, LLC | 29,130 | $1.09M | 0.19% | −85,932−74.7% | Reduced |
| Quantbot Technologies LP | 28,516 | $1.07M | 0.03% | +28,516 | New |
| Viking Fund Management LLC | 28,000 | $1.05M | 0.14% | +3,000+12.0% | Added |
| Vanguard Group Inc | 26,589 | $994.4K | 0.00% | −2,945−10.0% | Reduced |
| Thornburg Investment Management Inc | 25,031 | $936.2K | 0.01% | +3,968+18.8% | Added |
| JustInvest LLC | 24,915 | $931.9K | 0.01% | +2,954+13.5% | Added |
| CSS LLC | 24,890 | $930.9K | 0.06% | −7,040−22.0% | Reduced |
| Cerity Partners LLC | 23,732 | $887.6K | 0.00% | +90+0.4% | Added |
| Ameriprise Financial Inc | 23,154 | $866.0K | 0.00% | −876−3.6% | Reduced |
| Cornerstone Wealth Management, LLC | 23,099 | $863.9K | 0.05% | +670+3.0% | Added |
| LPL Financial LLC | 22,179 | $829.5K | 0.00% | −350−1.6% | Reduced |
| Mercer Global Advisors Inc | 21,947 | $820.8K | 0.00% | −24,840−53.1% | Reduced |
| Cadence Wealth Management LLC | 20,618 | $771.1K | 0.51% | +1,574+8.3% | Added |
| Evergreen Capital Management LLC | 20,250 | $757.4K | 0.02% | −270−1.3% | Reduced |
| Walleye Trading LLC | 20,247 | $757.2K | 0.02% | +20,247 | New |
| Gabelli Funds LLC | 20,000 | $748.0K | 0.01% | 00.0% | Unchanged |
| Callan Family Office, LLC | 18,232 | $681.9K | 0.02% | +9,926+119.5% | Added |
| Signaturefd, LLC | 18,089 | $676.5K | 0.01% | −278−1.5% | Reduced |
| Vident Advisory, LLC | 17,509 | $654.9K | 0.01% | +2,513+16.8% | Added |
| Squarepoint Ops LLC | 17,092 | $639.2K | 0.00% | +10,959+178.7% | Added |
| Wetherby Asset Management Inc | 16,976 | $634.9K | 0.03% | +16,976 | New |