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, Q4 2025
Institutional positions in Tenaris SA as of Dec 31, 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
- 229
- +9 vs. Q3 2025
- Shares held
- 32.9M
- −2.75M (−7.7%) vs. Q3 2025
- Total value
- $1.27B
- −$9.96M (−0.8%) vs. Q3 2025
- New holders
- 47
- 76 more added
- Sold out
- 38
- 70 more reduced
3 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Tenaris SA; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Westwood Global Investments, LLC | 7,272,404 | $279.6M | 14.22% | −319,256−4.2% | Reduced |
| Renaissance Technologies LLC | 2,964,344 | $114.0M | 0.18% | −386,300−11.5% | Reduced |
| Wellington Management Group LLP | 2,682,137 | $103.1M | 0.02% | +546,144+25.6% | Added |
| FMR LLC | 2,198,633 | $84.5M | 0.00% | −96,616−4.2% | Reduced |
| Van Eck Associates Corp | 2,019,185 | $77.6M | 0.06% | +408,592+25.4% | Added |
| Price T Rowe Associates Inc | 1,649,724 | $63.4M | 0.01% | −137,621−7.7% | Reduced |
| Dimensional Fund Advisors LP | 1,234,828 | $47.5M | 0.01% | +100,568+8.9% | Added |
| Morgan Stanley | 1,169,688 | $45.0M | 0.00% | −1,929−0.2% | Reduced |
| Citadel Advisors LLC | 932,396 | $35.9M | 0.02% | +920,799+7,940.0% | Added |
| Goldman Sachs Group Inc | 819,576 | $31.5M | 0.00% | +114,393+16.2% | Added |
| BlackRock, Inc. | 696,444 | $26.8M | 0.00% | +55,306+8.6% | Added |
| Massachusetts Financial Services Co | 656,439 | $25.2M | 0.01% | +53,553+8.9% | Added |
| Medina Singh Partners, LLC | 561,495 | $21.6M | 5.04% | +541+0.1% | Added |
| Invesco Ltd. | 546,204 | $21.0M | 0.00% | +457,332+514.6% | Added |
| Assetmark, Inc | 503,917 | $19.4M | 0.04% | +23,702+4.9% | Added |
| D. E. Shaw & Co., Inc. | 471,555 | $18.1M | 0.01% | −125,527−21.0% | Reduced |
| Jump Financial, LLC | 346,283 | $13.3M | 0.17% | +26,336+8.2% | Added |
| Bank of America Corp | 337,218 | $13.0M | 0.00% | +143,439+74.0% | Added |
| Grantham, Mayo, Van Otterloo & Co. LLC | 332,238 | $12.8M | 0.03% | +61,358+22.7% | Added |
| Harding Loevner LP | 311,282 | $12.0M | 0.11% | −96,865−23.7% | Reduced |
| Point72 Asset Management, L.P. | 266,087 | $10.2M | 0.02% | +266,087 | New |
| Kiltearn Partners LLP | 248,859 | $9.57M | 2.07% | −49,600−16.6% | Reduced |
| Balyasny Asset Management LLC | 228,960 | $8.80M | 0.02% | +228,960 | New |
| Northern Trust Corp | 225,021 | $8.65M | 0.00% | −5,035−2.2% | Reduced |
| UBS Group AG | 222,732 | $8.56M | 0.00% | −46,790−17.4% | Reduced |
| State Street Corp | 200,661 | $7.72M | 0.00% | +55,723+38.4% | Added |
| Legal & General Group Plc | 168,043 | $6.46M | 0.00% | −21,209−11.2% | Reduced |
| Corigliano Investment Advisers, LLC | 157,700 | $6.06M | 2.15% | +157,700 | New |
| Millennium Management LLC | 156,206 | $6.01M | 0.00% | −418,217−72.8% | Reduced |
| Ethic Inc. | 144,124 | $5.54M | 0.09% | +14,957+11.6% | Added |
| LMR Partners LLP | 126,422 | $4.86M | 0.05% | +84,300+200.1% | Added |
| Quantinno Capital Management LP | 121,076 | $4.66M | 0.01% | +25,110+26.2% | Added |
| Old Mission Capital LLC | 117,117 | $4.50M | 0.17% | +117,117 | New |
| AQR Capital Management LLC | 110,857 | $4.26M | 0.00% | +40,001+56.5% | Added |
| Silvercrest Asset Management Group LLC | 102,133 | $3.93M | 0.03% | −7,643−7.0% | Reduced |
| XTX Topco Ltd | 101,844 | $3.92M | 0.10% | +89,657+735.7% | Added |
| Tower Research Capital LLC (TRC) | 99,933 | $3.84M | 0.09% | −128,815−56.3% | Reduced |
| Blackstone Group Inc. | 84,597 | $3.25M | 0.01% | +84,597 | New |
| Aquatic Capital Management LLC | 81,396 | $3.13M | 0.09% | +47,429+139.6% | Added |
| Royal Bank of Canada | 68,857 | $2.65M | 0.00% | −259,942−79.1% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 63,601 | $2.45M | 0.05% | −21,085−24.9% | Reduced |
| Aventail Capital Group, LP | 61,163 | $2.35M | 0.14% | −13,047−17.6% | Reduced |
| Lazard Asset Management LLC | 57,968 | $2.23M | 0.00% | −66,540−53.4% | Reduced |
| Creative Planning | 57,812 | $2.22M | 0.00% | +13,717+31.1% | Added |
| Manning & Napier Advisors LLC | 53,908 | $2.09M | 0.03% | −1,553−2.8% | Reduced |
| O'Shaughnessy Asset Management, LLC | 52,736 | $2.03M | 0.01% | −13,468−20.3% | Reduced |
| Charles Schwab Investment Management Inc | 51,784 | $1.99M | 0.00% | +6,145+13.5% | Added |
| Crossmark Global Holdings, Inc. | 49,736 | $1.91M | 0.03% | −677−1.3% | Reduced |
| Citigroup Inc | 48,035 | $1.85M | 0.00% | −19,315−28.7% | Reduced |
| Fearnley Asset Management AS | 48,000 | $1.85M | 0.85% | +48,000 | New |
| Highland Capital Management, LLC | 44,070 | $1.69M | 0.08% | −5,175−10.5% | Reduced |
| New York State Common Retirement Fund | 42,819 | $1.65M | 0.00% | +1,674+4.1% | Added |
| Integrated Quantitative Investments LLC | 42,819 | $1.65M | 0.35% | +1,674+4.1% | Added |
| Mercer Global Advisors Inc | 40,192 | $1.55M | 0.00% | −7,966−16.5% | Reduced |
| Pathstone Holdings, LLC | 38,787 | $1.49M | 0.01% | −2,000−4.9% | Reduced |
| Guggenheim Capital LLC | 36,169 | $1.39M | 0.01% | +4,481+14.1% | Added |
| Lighthouse Investment Partners, LLC | 36,000 | $1.38M | 0.05% | +36,000 | New |
| Exencial Wealth Advisors, LLC | 35,192 | $1.35M | 0.04% | +1,239+3.6% | Added |
| BNP Paribas Arbitrage, SA | 34,156 | $1.31M | 0.00% | −13,993−29.1% | Reduced |
| CSS LLC | 34,080 | $1.31M | 0.07% | −500−1.4% | Reduced |
| Mariner, LLC | 31,225 | $1.20M | 0.00% | +1,432+4.8% | Added |
| Cerity Partners LLC | 30,051 | $1.16M | 0.00% | +4,987+19.9% | Added |
| Susquehanna International Group, LLP | 29,586 | $1.14M | 0.00% | +8,120+37.8% | Added |
| Envestnet Asset Management Inc | 28,662 | $1.10M | 0.00% | +28,662 | New |
| Mork Capital Management, LLC | 28,320 | $1.09M | 0.66% | +28,320 | New |
| Viking Fund Management LLC | 28,000 | $1.08M | 0.12% | 00.0% | Unchanged |
| Vanguard Group Inc | 26,589 | $1.02M | 0.00% | 00.0% | Unchanged |
| Hennion & Walsh Asset Management, Inc. | 24,870 | $956.3K | 0.03% | +12,653+103.6% | Added |
| Callan Family Office, LLC | 23,643 | $909.1K | 0.02% | +7,722+48.5% | Added |
| Laird Norton Trust Company, LLC | 23,494 | $903.3K | 0.02% | +23,494 | New |
| Evergreen Capital Management LLC | 23,157 | $890.4K | 0.02% | −1,806−7.2% | Reduced |
| Ameriprise Financial Inc | 22,896 | $880.4K | 0.00% | −695−2.9% | Reduced |
| JustInvest LLC | 22,729 | $873.9K | 0.01% | −764−3.3% | Reduced |
| Cadence Wealth Management LLC | 22,012 | $846.4K | 0.41% | +619+2.9% | Added |
| Capital Fund Management S.A. | 21,818 | $838.9K | 0.01% | +21,818 | New |
| Vestmark Advisory Solutions, Inc. | 21,541 | $828.3K | 0.01% | +21,541 | New |
| Thornburg Investment Management Inc | 21,297 | $818.9K | 0.01% | −2,352−9.9% | Reduced |
| Bridgefront Capital, LLC | 21,106 | $811.5K | 0.20% | +21,106 | New |
| LPL Financial LLC | 20,471 | $787.1K | 0.00% | −1,909−8.5% | Reduced |
| SEI Investments Co | 20,232 | $777.9K | 0.00% | +2,268+12.6% | Added |
| Gabelli Funds LLC | 20,000 | $769.0K | 0.01% | 00.0% | Unchanged |
| US Bancorp | 19,834 | $762.6K | 0.00% | +6,387+47.5% | Added |
| JPMorgan Chase & Co | 19,415 | $746.5K | 0.00% | +2,186+12.7% | Added |
| Beck Bode, LLC | 19,299 | $742.0K | 0.12% | +19,299 | New |
| Integrated Wealth Concepts LLC | 18,881 | $726.0K | 0.01% | −1,236−6.1% | Reduced |
| Signaturefd, LLC | 18,584 | $714.6K | 0.01% | +454+2.5% | Added |
| Skopos Labs, Inc. | 17,876 | $688.7K | 0.03% | +12,341+223.0% | Added |
| QRG Capital Management, Inc. | 17,609 | $677.1K | 0.01% | −28,592−61.9% | Reduced |
| American Century Companies Inc | 17,525 | $673.8K | 0.00% | +1,450+9.0% | Added |
| Vident Advisory, LLC | 17,250 | $663.3K | 0.01% | −754−4.2% | Reduced |
| Toroso Investments, LLC | 17,213 | $661.8K | 0.00% | +17,213 | New |
| Naples Global Advisors, LLC | 16,310 | $627.1K | 0.05% | +1,400+9.4% | Added |
| Chesapeake Capital Corp | 16,287 | $626.2K | 0.52% | +16,287 | New |
| J2 Capital Management Inc | 15,698 | $603.6K | 0.44% | −178−1.1% | Reduced |
| CAPROCK Group, Inc. | 15,565 | $598.5K | 0.01% | +16+0.1% | Added |
| Hantz Financial Services, Inc. | 15,517 | $597.0K | 0.01% | +6,108+64.9% | Added |
| Ieq Capital, LLC | 15,039 | $578.3K | 0.00% | +2,728+22.2% | Added |
| Dynasty Wealth Management, LLC | 14,848 | $570.9K | 0.01% | +1,780+13.6% | Added |
| Altrinsic Global Advisors LLC | 14,209 | $546.3K | 0.02% | −559−3.8% | Reduced |
| Quadrant Capital Group LLC | 13,709 | $527.1K | 0.02% | −120−0.9% | Reduced |