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, Q1 2025
Institutional positions in Tenaris SA as of Mar 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
- 227
- −1 vs. Q4 2024
- Shares held
- 51.8M
- +1.01M (+2.0%) vs. Q4 2024
- Total value
- $2.01B
- +$106.3M (+5.6%) vs. Q4 2024
- New holders
- 34
- 72 more added
- Sold out
- 35
- 83 more reduced
6 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Tenaris SA; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Westwood Global Investments, LLC | 7,672,759 | $300.1M | 9.28% | −241,386−3.1% | Reduced |
| Citadel Advisors LLC | 3,766,310 | $147.3M | 0.14% | +1,688,609+81.3% | Added |
| Renaissance Technologies LLC | 2,702,844 | $105.7M | 0.16% | +183,900+7.3% | Added |
| Sourcerock Group LLC | 2,450,258 | $95.8M | 5.40% | +356,636+17.0% | Added |
| Alua Capital Management LP | 2,387,363 | $93.4M | 7.60% | +2,387,363 | New |
| Wellington Management Group LLP | 2,327,117 | $91.0M | 0.02% | −4,139−0.2% | Reduced |
| FMR LLC | 2,324,478 | $90.9M | 0.01% | −409,102−15.0% | Reduced |
| Encompass Capital Advisors LLC | 2,097,540 | $82.0M | 3.15% | +997,540+90.7% | Added |
| Morgan Stanley | 1,831,306 | $71.6M | 0.01% | +432,811+30.9% | Added |
| Van Eck Associates Corp | 1,817,899 | $71.1M | 0.09% | −493,136−21.3% | Reduced |
| Balyasny Asset Management LLC | 1,714,769 | $67.1M | 0.17% | +22,327+1.3% | Added |
| Price T Rowe Associates Inc | 1,703,658 | $66.6M | 0.01% | −171,673−9.2% | Reduced |
| Goldman Sachs Group Inc | 1,388,426 | $54.3M | 0.01% | −322,359−18.8% | Reduced |
| Merewether Investment Management, LP | 1,293,733 | $50.6M | 1.84% | +757,320+141.2% | Added |
| Holocene Advisors, LP | 1,199,061 | $46.9M | 0.14% | +904,707+307.4% | Added |
| Millennium Management LLC | 1,177,259 | $46.0M | 0.04% | −1,639,469−58.2% | Reduced |
| UBS Group AG | 1,086,106 | $42.5M | 0.01% | +787,041+263.2% | Added |
| Massachusetts Financial Services Co | 754,994 | $29.5M | 0.01% | +241,290+47.0% | Added |
| BNP Paribas Arbitrage, SA | 683,067 | $26.7M | 0.02% | +376,921+123.1% | Added |
| BlackRock, Inc. | 657,168 | $25.7M | 0.00% | −10,785−1.6% | Reduced |
| Harding Loevner LP | 595,646 | $23.3M | 0.18% | −247,344−29.3% | Reduced |
| Dimensional Fund Advisors LP | 574,815 | $22.5M | 0.01% | +155,734+37.2% | Added |
| Capstone Investment Advisors, LLC | 550,880 | $21.5M | 0.20% | +268,500+95.1% | Added |
| Medina Singh Partners, LLC | 517,793 | $20.3M | 5.79% | −48,220−8.5% | Reduced |
| Quadrature Capital Ltd | 997,607 | $19.5M | 0.43% | +34,215+3.6% | Added |
| Northern Trust Corp | 462,542 | $18.1M | 0.00% | +241,853+109.6% | Added |
| Royal Bank of Canada | 452,835 | $17.7M | 0.00% | +13,635+3.1% | Added |
| Assetmark, Inc | 449,838 | $17.6M | 0.05% | +6,653+1.5% | Added |
| Bank of America Corp | 403,746 | $15.8M | 0.00% | +298,024+281.9% | Added |
| Orbis Allan Gray Ltd | 377,357 | $14.8M | 0.08% | −649,403−63.2% | Reduced |
| Pacer Advisors, Inc. | 288,819 | $11.3M | 0.03% | −23,388−7.5% | Reduced |
| Legal & General Group Plc | 216,539 | $8.47M | 0.00% | −43,551−16.7% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 213,574 | $8.35M | 0.03% | −211,443−49.7% | Reduced |
| Aventail Capital Group, LP | 185,524 | $7.26M | 0.36% | 00.0% | Unchanged |
| SIR Capital Management, L.P. | 180,907 | $7.08M | 0.62% | −152,370−45.7% | Reduced |
| Kiltearn Partners LLP | 171,959 | $6.73M | 1.28% | −120,600−41.2% | Reduced |
| Lazard Asset Management LLC | 165,230 | $6.46M | 0.01% | +3,178+2.0% | Added |
| Verition Fund Management LLC | 164,596 | $6.44M | 0.04% | +164,596 | New |
| D. E. Shaw & Co., Inc. | 163,406 | $6.39M | 0.01% | +163,406 | New |
| ExodusPoint Capital Management, LP | 152,084 | $5.95M | 0.08% | +1,497+1.0% | Added |
| UBS Asset Management Americas Inc | 139,554 | $5.46M | 0.00% | +139,554 | New |
| Abc Arbitrage SA | 132,513 | $5.18M | 0.96% | −703,190−84.1% | Reduced |
| Boothbay Fund Management, LLC | 125,462 | $4.91M | 0.18% | +18,466+17.3% | Added |
| Capital Insight Partners, LLC | 115,062 | $4.50M | 0.79% | −1,445−1.2% | Reduced |
| Ethic Inc. | 113,134 | $4.46M | 0.09% | −7,256−6.0% | Reduced |
| SummitTX Capital, L.P. | 107,566 | $4.21M | 0.19% | +107,566 | New |
| Lighthouse Investment Partners, LLC | 105,000 | $4.11M | 0.19% | −65,836−38.5% | Reduced |
| Marshall Wace, LLP | 103,130 | $4.03M | 0.01% | −324,953−75.9% | Reduced |
| Optiver Holding B.V. | 99,275 | $3.88M | 0.15% | −400,302−80.1% | Reduced |
| Silvercrest Asset Management Group LLC | 97,661 | $3.82M | 0.03% | −135−0.1% | Reduced |
| O'Shaughnessy Asset Management, LLC | 80,990 | $3.17M | 0.03% | +2,346+3.0% | Added |
| QRG Capital Management, Inc. | 80,338 | $3.14M | 0.03% | +59,371+283.2% | Added |
| Citigroup Inc | 79,366 | $3.10M | 0.00% | +29,024+57.7% | Added |
| Capital Fund Management S.A. | 78,120 | $3.06M | 0.04% | −443,317−85.0% | Reduced |
| Two Sigma Investments, LP | 77,794 | $3.04M | 0.01% | 00.0% | Unchanged |
| Invesco Ltd. | 71,791 | $2.81M | 0.00% | −11,318−13.6% | Reduced |
| Omers Administration Corp | 67,600 | $2.64M | 0.02% | +56,800+525.9% | Added |
| Campbell & CO Investment Adviser LLC | 63,818 | $2.50M | 0.19% | −82,848−56.5% | Reduced |
| Erste Asset Management GmbH | 60,000 | $2.35M | 0.03% | 00.0% | Unchanged |
| Ruffer LLP | 59,349 | $2.32M | 0.09% | −114,317−65.8% | Reduced |
| Quantinno Capital Management LP | 58,634 | $2.29M | 0.01% | +12,146+26.1% | Added |
| Jane Street Group, LLC | 49,703 | $1.94M | 0.00% | −125,658−71.7% | Reduced |
| Highland Capital Management, LLC | 49,340 | $1.93M | 0.12% | −3,600−6.8% | Reduced |
| Mercer Global Advisors Inc | 46,787 | $1.83M | 0.00% | +27,214+139.0% | Added |
| Manning & Napier Advisors LLC | 46,748 | $1.83M | 0.02% | −1,064−2.2% | Reduced |
| Crossmark Global Holdings, Inc. | 38,899 | $1.52M | 0.03% | +3,788+10.8% | Added |
| Creative Planning | 36,132 | $1.41M | 0.00% | −3,281−8.3% | Reduced |
| Barclays PLC | 35,275 | $1.38M | 0.00% | +35,255+176,275.0% | Added |
| Pathstone Holdings, LLC | 35,024 | $1.37M | 0.01% | +1,822+5.5% | Added |
| CSS LLC | 31,930 | $1.25M | 0.09% | −6,750−17.5% | Reduced |
| Exencial Wealth Advisors, LLC | 31,353 | $1.23M | 0.05% | −19,051−37.8% | Reduced |
| Twin Tree Management, LP | 31,211 | $1.22M | 0.03% | +31,211 | New |
| Charles Schwab Investment Management Inc | 30,219 | $1.18M | 0.00% | +3,273+12.1% | Added |
| Vanguard Group Inc | 29,534 | $1.16M | 0.00% | −47,351−61.6% | Reduced |
| Susquehanna International Group, LLP | 28,720 | $1.12M | 0.00% | −76,519−72.7% | Reduced |
| Ashton Thomas Private Wealth, LLC | 28,431 | $1.11M | 0.04% | +5,463+23.8% | Added |
| Mariner, LLC | 28,189 | $1.10M | 0.00% | +759+2.8% | Added |
| Viking Fund Management LLC | 25,000 | $977.8K | 0.14% | −35,000−58.3% | Reduced |
| Toroso Investments, LLC | 24,744 | $967.7K | 0.01% | +24,744 | New |
| Ameriprise Financial Inc | 24,030 | $939.8K | 0.00% | +1,096+4.8% | Added |
| AQR Capital Management LLC | 23,662 | $925.4K | 0.00% | +2,969+14.3% | Added |
| Cerity Partners LLC | 23,642 | $924.6K | 0.00% | −3,176−11.8% | Reduced |
| LPL Financial LLC | 22,529 | $881.1K | 0.00% | +489+2.2% | Added |
| Cornerstone Wealth Management, LLC | 22,429 | $877.2K | 0.06% | +1,240+5.9% | Added |
| Guggenheim Capital LLC | 22,312 | $872.6K | 0.01% | −1,048−4.5% | Reduced |
| JustInvest LLC | 21,961 | $858.9K | 0.01% | +2,869+15.0% | Added |
| Y-Intercept (Hong Kong) Ltd | 21,291 | $832.7K | 0.06% | +21,291 | New |
| Thornburg Investment Management Inc | 21,063 | $823.8K | 0.01% | 00.0% | Unchanged |
| Evergreen Capital Management LLC | 20,520 | $802.5K | 0.03% | +59+0.3% | Added |
| Gabelli Funds LLC | 20,000 | $782.2K | 0.01% | 00.0% | Unchanged |
| Cadence Wealth Management LLC | 19,044 | $744.8K | 0.55% | +895+4.9% | Added |
| Signaturefd, LLC | 18,367 | $718.3K | 0.01% | −280−1.5% | Reduced |
| Bank of Montreal | 17,256 | $674.9K | 0.00% | +11,952+225.3% | Added |
| HighTower Advisors, LLC | 16,493 | $645.0K | 0.00% | +160+1.0% | Added |
| American Century Companies Inc | 16,075 | $628.7K | 0.00% | 00.0% | Unchanged |
| Interval Partners, LP | 15,807 | $618.2K | 0.02% | −148,165−90.4% | Reduced |
| SEI Investments Co | 15,563 | $608.7K | 0.00% | +2,073+15.4% | Added |
| Altrinsic Global Advisors LLC | 15,306 | $598.6K | 0.03% | −1,264−7.6% | Reduced |
| Corient IA LLC | 15,000 | $586.6K | 0.42% | +15,000 | New |
| Vident Advisory, LLC | 14,996 | $586.5K | 0.01% | +2,283+18.0% | Added |