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, Q3 2025
Institutional positions in Tenaris SA as of Sep 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
- +3 vs. Q2 2025
- Shares held
- 35.7M
- −10.2M (−22.2%) vs. Q2 2025
- Total value
- $1.28B
- −$431.2M (−25.2%) vs. Q2 2025
- New holders
- 37
- 82 more added
- Sold out
- 34
- 65 more reduced
3 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Tenaris SA; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Jackson Hole Capital Partners, LLC | 9,239 | $330.5K | 0.06% | 00.0% | Unchanged |
| Hantz Financial Services, Inc. | 9,409 | $337.0K | 0.01% | +5,785+159.6% | Added |
| Yousif Capital Management, LLC | 9,548 | $341.5K | 0.00% | 00.0% | Unchanged |
| Brevan Howard Capital Management LP | 9,750 | $348.8K | 0.01% | +9,750 | New |
| Strategic Investment Advisors | 9,865 | $352.7K | 0.03% | −40.0% | Reduced |
| Profund Advisors LLC | 10,188 | $364.4K | 0.01% | −2,499−19.7% | Reduced |
| Two Sigma Investments, LP | 11,094 | $396.8K | 0.00% | −46,100−80.6% | Reduced |
| R Squared Ltd | 11,137 | $398.4K | 0.17% | +2,901+35.2% | Added |
| Commonwealth Equity Services, LLC | 11,228 | $402.0K | 0.00% | +258+2.4% | Added |
| DRW Securities, LLC | 11,330 | $412.9K | 0.02% | +11,330 | New |
| Citadel Advisors LLC | 11,597 | $414.8K | 0.00% | −1,711,210−99.3% | Reduced |
| Centiva Capital, LP | 11,942 | $427.2K | 0.04% | +11,942 | New |
| Hennessy Advisors Inc | 12,000 | $429.2K | 0.01% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 12,164 | $435.1K | 0.00% | +324+2.7% | Added |
| XTX Topco Ltd | 12,187 | $435.9K | 0.02% | −2,551−17.3% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 12,217 | $437.0K | 0.02% | +12,217 | New |
| Savant Capital, LLC | 12,221 | $437.2K | 0.00% | +2,221+22.2% | Added |
| Ieq Capital, LLC | 12,311 | $440.4K | 0.00% | +5,439+79.1% | Added |
| 1832 Asset Management L.P. | 12,775 | $457.0K | 0.00% | 00.0% | Unchanged |
| Dynasty Wealth Management, LLC | 13,068 | $467.4K | 0.01% | +13,068 | New |
| TD Waterhouse Canada Inc. | 12,746 | $471.0K | 0.00% | +434+3.5% | Added |
| US Bancorp | 13,447 | $481.0K | 0.00% | −772−5.4% | Reduced |
| Quadrant Capital Group LLC | 13,829 | $494.7K | 0.02% | +18+0.1% | Added |
| HRT Financial LP | 14,714 | $526.0K | 0.00% | +14,714 | New |
| Altrinsic Global Advisors LLC | 14,768 | $528.3K | 0.02% | −132−0.9% | Reduced |
| Naples Global Advisors, LLC | 14,910 | $533.3K | 0.04% | +1,225+9.0% | Added |
| Corient IA LLC | 15,000 | $536.5K | 0.40% | 00.0% | Unchanged |
| CAPROCK Group, Inc. | 15,549 | $562.7K | 0.01% | +15,549 | New |
| J2 Capital Management Inc | 15,876 | $567.9K | 0.43% | +13+0.1% | Added |
| Callan Family Office, LLC | 15,921 | $569.5K | 0.02% | −2,311−12.7% | Reduced |
| American Century Companies Inc | 16,075 | $575.0K | 0.00% | 00.0% | Unchanged |
| Wetherby Asset Management Inc | 16,268 | $581.9K | 0.02% | −708−4.2% | Reduced |
| HighTower Advisors, LLC | 16,340 | $584.5K | 0.00% | +1,471+9.9% | Added |
| JPMorgan Chase & Co | 17,229 | $616.3K | 0.00% | +352+2.1% | Added |
| Bayforest Capital Ltd | 17,375 | $621.5K | 0.30% | +1,210+7.5% | Added |
| SEI Investments Co | 17,964 | $642.6K | 0.00% | +1,252+7.5% | Added |
| Vident Advisory, LLC | 18,004 | $644.0K | 0.01% | +495+2.8% | Added |
| Signaturefd, LLC | 18,130 | $648.5K | 0.01% | +41+0.2% | Added |
| Gabelli Funds LLC | 20,000 | $715.4K | 0.00% | 00.0% | Unchanged |
| Integrated Wealth Concepts LLC | 20,117 | $719.6K | 0.01% | +20,117 | New |
| Cadence Wealth Management LLC | 21,393 | $765.2K | 0.40% | +775+3.8% | Added |
| Susquehanna International Group, LLP | 21,466 | $767.8K | 0.00% | +7,406+52.7% | Added |
| Cornerstone Wealth Management, LLC | 21,580 | $771.9K | 0.04% | −1,519−6.6% | Reduced |
| LPL Financial LLC | 22,380 | $800.5K | 0.00% | +201+0.9% | Added |
| Capital Insight Partners, LLC | 23,485 | $840.1K | 0.14% | −5,645−19.4% | Reduced |
| JustInvest LLC | 23,493 | $840.4K | 0.01% | −1,422−5.7% | Reduced |
| Ameriprise Financial Inc | 23,591 | $843.9K | 0.00% | +437+1.9% | Added |
| Thornburg Investment Management Inc | 23,649 | $845.9K | 0.01% | −1,382−5.5% | Reduced |
| Evergreen Capital Management LLC | 24,963 | $892.9K | 0.02% | +4,713+23.3% | Added |
| Cerity Partners LLC | 25,064 | $896.5K | 0.00% | +1,332+5.6% | Added |
| Omers Administration Corp | 26,500 | $947.9K | 0.01% | +16,900+176.0% | Added |
| Vanguard Group Inc | 26,589 | $951.1K | 0.00% | 00.0% | Unchanged |
| CI Private Wealth, LLC | 27,614 | $987.8K | 0.00% | +16,075+139.3% | Added |
| Viking Fund Management LLC | 28,000 | $1.00M | 0.12% | 00.0% | Unchanged |
| Mariner, LLC | 29,793 | $1.07M | 0.00% | −4,312−12.6% | Reduced |
| Guggenheim Capital LLC | 31,688 | $1.13M | 0.01% | −120.0% | Reduced |
| Exencial Wealth Advisors, LLC | 33,953 | $1.21M | 0.04% | +1,191+3.6% | Added |
| Aquatic Capital Management LLC | 33,967 | $1.22M | 0.02% | +33,967 | New |
| CSS LLC | 34,580 | $1.24M | 0.07% | +9,690+38.9% | Added |
| Engineers Gate Manager LP | 35,100 | $1.26M | 0.01% | −37,174−51.4% | Reduced |
| Advisor Group Holdings, Inc. | 35,871 | $1.28M | 0.00% | −851−2.3% | Reduced |
| Campbell & CO Investment Adviser LLC | 37,563 | $1.34M | 0.10% | −28,429−43.1% | Reduced |
| Pathstone Holdings, LLC | 40,787 | $1.46M | 0.01% | +1,193+3.0% | Added |
| New York State Common Retirement Fund | 41,145 | $1.47M | 0.00% | 00.0% | Unchanged |
| Integrated Quantitative Investments LLC | 41,145 | $1.47M | 0.42% | 00.0% | Unchanged |
| LMR Partners LLP | 42,122 | $1.51M | 0.02% | +42,122 | New |
| Creative Planning | 44,095 | $1.58M | 0.00% | +3,258+8.0% | Added |
| Charles Schwab Investment Management Inc | 45,639 | $1.63M | 0.00% | +3,085+7.2% | Added |
| QRG Capital Management, Inc. | 46,201 | $1.65M | 0.02% | −11,552−20.0% | Reduced |
| Squarepoint Ops LLC | 46,792 | $1.67M | 0.00% | +29,700+173.8% | Added |
| BNP Paribas Arbitrage, SA | 48,149 | $1.72M | 0.00% | −78−0.2% | Reduced |
| Mercer Global Advisors Inc | 48,158 | $1.72M | 0.00% | +26,211+119.4% | Added |
| Highland Capital Management, LLC | 49,245 | $1.76M | 0.09% | +1,210+2.5% | Added |
| Crossmark Global Holdings, Inc. | 50,413 | $1.80M | 0.03% | +6,143+13.9% | Added |
| Manning & Napier Advisors LLC | 55,461 | $1.98M | 0.03% | −4,675−7.8% | Reduced |
| Ruffer LLP | 59,349 | $2.12M | 0.12% | 00.0% | Unchanged |
| O'Shaughnessy Asset Management, LLC | 66,204 | $2.37M | 0.01% | −10,714−13.9% | Reduced |
| Citigroup Inc | 67,350 | $2.41M | 0.00% | +17,813+36.0% | Added |
| AQR Capital Management LLC | 70,856 | $2.53M | 0.00% | +30,951+77.6% | Added |
| Aventail Capital Group, LP | 74,210 | $2.65M | 0.13% | −111,314−60.0% | Reduced |
| Quantbot Technologies LP | 75,933 | $2.72M | 0.07% | +47,417+166.3% | Added |
| Y-Intercept (Hong Kong) Ltd | 84,686 | $3.03M | 0.07% | +78,090+1,183.9% | Added |
| KLP Kapitalforvaltning AS | 85,000 | $3.04M | 0.01% | +55,000+183.3% | Added |
| Pureheart Capital Pte Ltd. | 86,000 | $3.08M | 0.69% | +86,000 | New |
| Clear Street Markets LLC | 86,766 | $3.10M | 1.02% | +25,476+41.6% | Added |
| Invesco Ltd. | 88,872 | $3.18M | 0.00% | +19,556+28.2% | Added |
| Quantinno Capital Management LP | 95,966 | $3.43M | 0.01% | +28,714+42.7% | Added |
| Silvercrest Asset Management Group LLC | 109,776 | $3.93M | 0.03% | +255+0.2% | Added |
| Lazard Asset Management LLC | 124,508 | $4.45M | 0.01% | −23,960−16.1% | Reduced |
| Ethic Inc. | 129,167 | $4.62M | 0.08% | +5,636+4.6% | Added |
| State Street Corp | 144,938 | $5.18M | 0.00% | −1,291−0.9% | Reduced |
| Legal & General Group Plc | 189,252 | $6.77M | 0.00% | −17,645−8.5% | Reduced |
| Bank of America Corp | 193,779 | $6.93M | 0.00% | −401,825−67.5% | Reduced |
| Tower Research Capital LLC (TRC) | 228,748 | $8.18M | 0.23% | +222,852+3,779.7% | Added |
| Northern Trust Corp | 230,056 | $8.23M | 0.00% | −592−0.3% | Reduced |
| Qube Research & Technologies Ltd | 240,918 | $8.62M | 0.01% | +240,918 | New |
| Trexquant Investment LP | 250,866 | $8.97M | 0.09% | +7,073+2.9% | Added |
| UBS Group AG | 269,522 | $9.64M | 0.00% | −1,315,354−83.0% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 270,880 | $9.69M | 0.03% | +17,013+6.7% | Added |
| SIR Capital Management, L.P. | 290,097 | $10.4M | 0.93% | −398,838−57.9% | Reduced |