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 2026
Institutional positions in Tenaris SA as of Jun 30, 2026. 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
- 285
- +25 vs. Q1 2026
- Shares held
- 38.4M
- −906.0K (−2.3%) vs. Q1 2026
- Total value
- $2.13B
- −$154.9M (−6.8%) vs. Q1 2026
- New holders
- 54
- 99 more added
- Sold out
- 29
- 81 more reduced
4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 2026
Shares, value and share of portfolio for each institution holding Tenaris SA; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Viking Fund Management LLC | 25,000 | $1.39M | 0.12% | 00.0% | Unchanged |
| Savant Capital, LLC | 24,582 | $1.40M | 0.00% | +12,227+99.0% | Added |
| Vanguard Capital Management LLC | 26,589 | $1.48M | 0.00% | 00.0% | Unchanged |
| Mork Capital Management, LLC | 28,320 | $1.57M | 1.01% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 31,154 | $1.73M | 0.00% | −2,483−7.4% | Reduced |
| Fulcrum Asset Management LLP | 32,076 | $1.80M | 0.18% | +32,076 | New |
| Cerity Partners LLC | 32,463 | $1.80M | 0.00% | +840+2.7% | Added |
| New York State Common Retirement Fund | 33,399 | $1.85M | 0.00% | 00.0% | Unchanged |
| O'Shaughnessy Asset Management, LLC | 33,870 | $1.88M | 0.01% | −10,547−23.7% | Reduced |
| JPMorgan Chase & Co | 35,187 | $1.97M | 0.00% | +16,190+85.2% | Added |
| Bank of Montreal | 36,498 | $2.03M | 0.00% | +6,162+20.3% | Added |
| Walleye Capital LLC | 36,651 | $2.03M | 0.01% | +36,651 | New |
| Manning & Napier Advisors LLC | 36,400 | $2.04M | 0.03% | −16,091−30.7% | Reduced |
| Mariner, LLC | 36,774 | $2.04M | 0.00% | −3,533−8.8% | Reduced |
| UBS Asset Management Americas Inc | 39,063 | $2.17M | 0.00% | +32,191+468.4% | Added |
| GTS Securities LLC | 39,981 | $2.22M | 0.05% | −22,705−36.2% | Reduced |
| Pathstone Holdings, LLC | 40,340 | $2.24M | 0.01% | +53+0.1% | Added |
| Acadian Asset Management LLC | 41,481 | $2.30M | 0.00% | +38,431+1,260.0% | Added |
| Vident Advisory, LLC | 43,189 | $2.40M | 0.02% | +148+0.3% | Added |
| Highland Capital Management, LLC | 43,970 | $2.44M | 0.11% | +50+0.1% | Added |
| Balyasny Asset Management LLC | 45,238 | $2.51M | 0.00% | +45,238 | New |
| Central Valley Advisors, LLC | 46,572 | $2.58M | 0.66% | +46,572 | New |
| Campbell & CO Investment Adviser LLC | 46,579 | $2.58M | 0.14% | +5,536+13.5% | Added |
| Wells Fargo & Company | 46,860 | $2.60M | 0.00% | +2,473+5.6% | Added |
| Nuveen, LLC | 47,009 | $2.61M | 0.00% | +47,009 | New |
| J. Goldman & Co LP | 49,500 | $2.75M | 0.10% | +49,500 | New |
| Lazard Asset Management LLC | 58,680 | $3.26M | 0.00% | +428+0.7% | Added |
| First Trust Advisors LP | 60,384 | $3.35M | 0.00% | +46,080+322.1% | Added |
| Guggenheim Capital LLC | 61,742 | $3.43M | 0.02% | +12,096+24.4% | Added |
| Citigroup Inc | 64,250 | $3.57M | 0.00% | +2,804+4.6% | Added |
| Charles Schwab Investment Management Inc | 64,854 | $3.60M | 0.00% | +7,512+13.1% | Added |
| American Century Companies Inc | 64,923 | $3.60M | 0.00% | +36,189+125.9% | Added |
| Integrated Quantitative Investments LLC | 75,734 | $4.20M | 0.69% | +8,936+13.4% | Added |
| Energy Income Partners, LLC | 80,180 | $4.45M | 0.07% | +80,180 | New |
| Leuthold Group, LLC | 80,367 | $4.46M | 0.45% | −3,627−4.3% | Reduced |
| Silvercrest Asset Management Group LLC | 80,885 | $4.49M | 0.03% | −19,853−19.7% | Reduced |
| Creative Planning | 88,942 | $4.94M | 0.00% | +16,122+22.1% | Added |
| ExodusPoint Capital Management, LP | 92,044 | $5.11M | 0.05% | +80,681+710.0% | Added |
| Ethic Inc. | 98,988 | $5.49M | 0.07% | −26,584−21.2% | Reduced |
| Point72 Asset Management, L.P. | 103,502 | $5.74M | 0.01% | +103,502 | New |
| Lighthouse Investment Partners, LLC | 105,655 | $5.86M | 0.18% | +63,155+148.6% | Added |
| Y-Intercept (Hong Kong) Ltd | 112,363 | $6.24M | 0.12% | +112,363 | New |
| HRT Financial LP | 124,288 | $6.90M | 0.01% | +84,514+212.5% | Added |
| XTX Topco Ltd | 124,656 | $6.92M | 0.09% | +110,319+769.5% | Added |
| Capital Fund Management S.A. | 125,440 | $6.96M | 0.05% | +125,440 | New |
| Legal & General Group Plc | 129,637 | $7.19M | 0.00% | −16,878−11.5% | Reduced |
| Medina Singh Partners, LLC | 134,108 | $7.44M | 1.46% | −119,254−47.1% | Reduced |
| State Street Corp | 143,477 | $7.96M | 0.00% | −59,701−29.4% | Reduced |
| National Bank of Canada | 146,497 | $8.12M | 0.01% | +642+0.4% | Added |
| Quantinno Capital Management LP | 163,782 | $9.09M | 0.01% | +17,435+11.9% | Added |
| LMR Partners LLP | 172,323 | $9.56M | 0.07% | +172,323 | New |
| Kiltearn Partners LLP | 173,766 | $9.64M | 2.34% | −31,093−15.2% | Reduced |
| AQR Capital Management LLC | 183,476 | $10.2M | 0.00% | +38,049+26.2% | Added |
| Grantham, Mayo, Van Otterloo & Co. LLC | 189,569 | $10.5M | 0.02% | −158,015−45.5% | Reduced |
| Capital Wealth Planning, LLC | 208,408 | $11.6M | 0.06% | −32,106−13.3% | Reduced |
| Northern Trust Corp | 211,326 | $11.7M | 0.00% | −6,572−3.0% | Reduced |
| Citadel Advisors LLC | 232,876 | $12.9M | 0.01% | −59,547−20.4% | Reduced |
| Harding Loevner LP | 264,186 | $14.7M | 0.14% | −28,672−9.8% | Reduced |
| Carrhae Capital LLP | 278,311 | $15.4M | 1.02% | −59,117−17.5% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 293,599 | $16.3M | 0.03% | +115,160+64.5% | Added |
| Bank of America Corp | 343,934 | $19.1M | 0.00% | +185,497+117.1% | Added |
| SIR Capital Management, L.P. | 368,588 | $20.5M | 2.35% | +368,588 | New |
| Freestone Grove Partners LP | 504,463 | $28.0M | 0.18% | +504,463 | New |
| Aventail Capital Group, LP | 559,941 | $31.1M | 1.78% | +472,574+540.9% | Added |
| Assetmark, Inc | 560,853 | $31.1M | 0.05% | +70,076+14.3% | Added |
| Bridgewater Associates, LP | 568,223 | $31.5M | 0.13% | +539,593+1,884.7% | Added |
| UBS Group AG | 581,680 | $32.3M | 0.01% | +82,702+16.6% | Added |
| Millennium Management LLC | 619,526 | $34.4M | 0.02% | +550,803+801.5% | Added |
| Massachusetts Financial Services Co | 628,372 | $35.3M | 0.01% | −18,482−2.9% | Reduced |
| Marshall Wace, LLP | 704,368 | $39.1M | 0.03% | +696,368+8,704.6% | Added |
| Jane Street Group, LLC | 716,734 | $39.8M | 0.03% | +615,896+610.8% | Added |
| BlackRock, Inc. | 747,509 | $41.5M | 0.00% | +31,718+4.4% | Added |
| Invesco Ltd. | 901,517 | $50.0M | 0.00% | −266,955−22.8% | Reduced |
| CWA Asset Management Group, LLC | 987,291 | $54.8M | 1.68% | +480,741+94.9% | Added |
| Driehaus Capital Management LLC | 1,001,129 | $55.6M | 0.32% | +112,783+12.7% | Added |
| Holocene Advisors, LP | 1,030,105 | $57.2M | 0.13% | +1,030,105 | New |
| Dimensional Fund Advisors LP | 1,039,883 | $57.7M | 0.01% | −81,124−7.2% | Reduced |
| Merewether Investment Management, LP | 1,130,692 | $62.7M | 1.18% | +1,130,692 | New |
| Goldman Sachs Group Inc | 1,179,501 | $65.5M | 0.01% | +458,607+63.6% | Added |
| Morgan Stanley | 1,238,988 | $68.8M | 0.00% | +60,919+5.2% | Added |
| Price T Rowe Associates Inc | 1,502,839 | $83.4M | 0.01% | +57,629+4.0% | Added |
| Wellington Management Group LLP | 2,458,033 | $136.4M | 0.02% | +52,999+2.2% | Added |
| Van Eck Associates Corp | 2,478,526 | $137.5M | 0.08% | −414,506−14.3% | Reduced |
| Renaissance Technologies LLC | 3,056,044 | $169.6M | 0.23% | −143,700−4.5% | Reduced |
| FMR LLC | 6,760,952 | $375.2M | 0.02% | −1,490,807−18.1% | Reduced |
| Westwood Global Investments, LLC | 0 | $0 | 0.00% | −6,673,718−100.0% | Sold out |
| Fearnley Asset Management AS | 0 | $0 | 0.00% | −112,700−100.0% | Sold out |
| FORA Capital, LLC | 0 | $0 | 0.00% | −22,994−100.0% | Sold out |
| North of South Capital LLP | 0 | $0 | 0.00% | −18,087−100.0% | Sold out |
| IMC-Chicago, LLC | 0 | $0 | 0.00% | −15,003−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −12,217−100.0% | Sold out |
| Yousif Capital Management, LLC | 0 | $0 | 0.00% | −9,548−100.0% | Sold out |
| Gallo Partners, LP | 0 | $0 | 0.00% | −9,483−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −8,074−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −7,594−100.0% | Sold out |
| Merit Financial Group, LLC | 0 | $0 | 0.00% | −6,959−100.0% | Sold out |
| R Squared Ltd | 0 | $0 | 0.00% | −6,246−100.0% | Sold out |
| We Are One Seven, LLC | 0 | $0 | 0.00% | −5,036−100.0% | Sold out |
| PDS Planning, Inc | 0 | $0 | 0.00% | −3,593−100.0% | Sold out |
| Larry Mathis Financial Planning, LLC | 0 | $0 | 0.00% | −3,573−100.0% | Sold out |