DaveManuel.com · Institutional Ownership · Who Owns It
TENARIS S A (TS)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
290
Reporting holders
$2.2B
Reported value
1.3%
Calls
1.1%
Puts
+20
Holder change
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| FMR LLC | $375.2M | 6,760,952 | 0.02% | 31q | -18.1%-$82.7M |
| RENAISSANCE TECHNOLOGIES LLC | $169.6M | 3,056,044 | 0.23% | 31q | -4.5%-$8.0M |
| VAN ECK ASSOCIATES CORP | $137.5M | 2,478,526 | 0.08% | 31q | -14.3%-$23.0M |
| WELLINGTON MANAGEMENT GROUP LLP | $136.4M | 2,458,033 | 0.02% | 31q | +2.2%+$2.9M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $83.4M | 1,502,839 | 0.01% | 31q | +4.0%+$3.2M |
| MORGAN STANLEY | $68.8M | 1,238,988 | 0.00% | 35q | +5.2%+$3.4M |
| GOLDMAN SACHS GROUP INC | $65.5M | 1,179,501 | 0.01% | 31q | +63.6%+$25.4M |
| Merewether Investment Management, LP | $62.7M | 1,130,692 | 1.18% | new | NEW |
| DIMENSIONAL FUND ADVISORS LP | $57.7M | 1,039,883 | 0.01% | 31q | -7.2%-$4.5M |
| Holocene Advisors, LP | $57.2M | 1,030,105 | 0.13% | new | NEW |
| Driehaus Capital Management LLC | $55.6M | 1,001,129 | 0.32% | 2q | +12.7%+$6.3M |
| CWA Asset Management Group, LLC | $54.8M | 987,291 | 1.67% | 2q | +94.9%+$26.7M |
| Invesco Ltd. | $50.0M | 901,517 | 0.00% | 7q | -22.8%-$14.8M |
| JANE STREET GROUP, LLC | $48.6M incl. $8.8M options CALL+PUT | 716,734 | 0.00% | 31q | +610.8%+$41.8M |
| BlackRock, Inc. | $41.5M | 747,509 | 0.00% | 8q | +4.4%+$1.8M |
| MARSHALL WACE, LLP | $39.1M | 704,368 | 0.03% | 2q | +8704.6%+$38.6M |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $35.3M | 628,372 | 0.01% | 15q | -2.9%-$1.0M |
| MILLENNIUM MANAGEMENT LLC | $34.4M | 619,526 | 0.01% | 31q | +801.5%+$30.6M |
| UBS Group AG | $32.3M | 581,680 | 0.00% | 31q | +16.6%+$4.6M |
| Bridgewater Associates, LP | $31.5M | 568,223 | 0.13% | 2q | +1884.7%+$29.9M |
| ASSETMARK, INC | $31.1M | 560,853 | 0.05% | 14q | +14.3%+$3.9M |
| Aventail Capital Group, LP | $31.1M | 559,941 | 1.78% | 7q | +540.9%+$26.2M |
| Freestone Grove Partners LP | $28.0M | 504,463 | 0.18% | new | NEW |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $26.7M incl. $26.0M options CALL+PUT | 12,690 | 0.00% | 31q | -44.1%-$21.1M |
| SIR Capital Management, L.P. | $20.5M | 368,588 | 2.35% | new | NEW |
| BANK OF AMERICA CORP /DE/ | $19.1M | 343,934 | 0.00% | 31q | +117.1%+$10.3M |
| CITADEL ADVISORS LLC | $16.7M incl. $3.7M options CALL+PUT | 232,876 | 0.00% | 31q | -20.4%-$4.3M |
| Connor, Clark & Lunn Investment Management Ltd. | $16.3M | 293,599 | 0.03% | 2q | +64.5%+$6.4M |
| Carrhae Capital LLP | $15.4M | 278,311 | 0.43% | 2q | -17.5%-$3.3M |
| Harding Loevner LP | $14.7M | 264,186 | 0.14% | 31q | -9.8%-$1.6M |
| NORTHERN TRUST CORP | $11.7M | 211,326 | 0.00% | 31q | -3.0%-$364.7K |
| Capital Wealth Planning, LLC | $11.6M | 208,408 | 0.06% | 2q | -13.3%-$1.8M |
| Grantham, Mayo, Van Otterloo & Co. LLC | $10.5M | 189,569 | 0.02% | 13q | -45.5%-$8.8M |
| AQR CAPITAL MANAGEMENT LLC | $10.2M | 183,476 | 0.00% | 21q | +26.2%+$2.1M |
| Kiltearn Partners LLP | $9.6M | 173,766 | 2.34% | 11q | -15.2%-$1.7M |
| LMR Partners LLP | $9.6M | 172,323 | 0.04% | new | NEW |
| Quantinno Capital Management LP | $9.1M | 163,782 | 0.01% | 15q | +11.9%+$967.5K |
| NATIONAL BANK OF CANADA /FI/ | $8.1M | 146,497 | 0.01% | 2q | HELD |
| STATE STREET CORP | $8.0M | 143,477 | 0.00% | 5q | -29.4%-$3.3M |
| Medina Value Partners, LLC | $7.4M | 134,108 | 1.46% | 8q | -47.1%-$6.6M |
| Legal & General Group Plc | $7.2M | 129,637 | 0.00% | 31q | -11.5%-$936.6K |
| CAPITAL FUND MANAGEMENT S.A. | $7.0M | 125,440 | 0.03% | new | NEW |
| XTX Topco Ltd | $6.9M | 124,656 | 0.09% | 5q | +769.5%+$6.1M |
| HRT FINANCIAL LP | $6.9M | 124,288 | 0.01% | 2q | +212.5%+$4.7M |
| Y-Intercept (Hong Kong) Ltd | $6.2M | 112,363 | 0.12% | new | NEW |
| Lighthouse Investment Partners, LLC | $5.9M | 105,655 | 0.16% | 3q | +148.6%+$3.5M |
| Point72 Asset Management, L.P. | $5.7M | 103,502 | 0.01% | new | NEW |
| PEAK6 LLC | $5.5M CALL | options only | 0.01% | 3q | OPTIONS |
| Ethic Inc. | $5.5M | 98,988 | 0.07% | 25q | -21.2%-$1.5M |
| ExodusPoint Capital Management, LP | $5.1M | 92,044 | 0.03% | 2q | +710.0%+$4.5M |
| Creative Planning | $4.9M | 88,942 | 0.00% | 16q | +22.1%+$894.6K |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | $4.5M | 80,885 | 0.03% | 12q | -19.7%-$1.1M |
| LEUTHOLD GROUP, LLC | $4.5M | 80,367 | 0.45% | 2q | -4.3%-$201.3K |
| Energy Income Partners, LLC | $4.4M | 80,180 | 0.07% | new | NEW |
| Integrated Quantitative Investments LLC | $4.2M | 75,734 | 0.69% | 5q | +13.4%+$495.9K |
| AMERICAN CENTURY COMPANIES INC | $3.6M | 64,923 | 0.00% | 18q | +125.9%+$2.0M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $3.6M | 64,854 | 0.00% | 12q | +13.1%+$416.8K |
| CITIGROUP INC | $3.6M | 64,250 | 0.00% | 31q | +4.6%+$155.6K |
| SIMPLEX TRADING, LLC | $3.5M CALL+PUT | options only | 0.00% | 31q | OPTIONS |
| GUGGENHEIM CAPITAL LLC | $3.4M | 61,742 | 0.02% | 31q | +24.4%+$671.2K |
| FIRST TRUST ADVISORS LP | $3.4M | 60,384 | 0.00% | 7q | +322.1%+$2.6M |
| LAZARD ASSET MANAGEMENT LLC | $3.3M | 58,680 | 0.00% | 18q | +0.7%+$23.7K |
| J. Goldman & Co LP | $2.7M | 49,500 | 0.07% | new | NEW |
| Nuveen, LLC | $2.6M | 47,009 | 0.00% | new | NEW |
| WELLS FARGO & COMPANY/MN | $2.6M | 46,860 | 0.00% | 31q | +5.6%+$137.2K |
| Campbell & CO Investment Adviser LLC | $2.6M | 46,579 | 0.14% | 2q | +13.5%+$307.2K |
| CENTRAL VALLEY ADVISORS, LLC | $2.6M | 46,572 | 0.66% | new | NEW |
| Balyasny Asset Management L.P. | $2.5M | 45,238 | 0.00% | new | NEW |
| HIGHLAND CAPITAL MANAGEMENT, LLC | $2.4M | 43,970 | 0.11% | 31q | HELD |
| Vident Advisory, LLC | $2.4M | 43,189 | 0.02% | 9q | HELD |
| Walleye Capital LLC | $2.3M incl. $283.0K options CALL+PUT | 36,651 | 0.01% | new | NEW |
| ACADIAN ASSET MANAGEMENT LLC | $2.3M | 41,481 | 0.00% | 3q | +1260.0%+$2.1M |
| Pathstone Holdings, LLC | $2.2M | 40,340 | 0.01% | 11q | HELD |
| GTS SECURITIES LLC | $2.2M | 39,981 | 0.05% | 2q | -36.2%-$1.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $2.2M | 39,063 | 0.00% | 3q | +468.4%+$1.8M |
| Mariner, LLC | $2.0M | 36,774 | 0.00% | 16q | -8.8%-$196.1K |
| MANNING & NAPIER ADVISORS LLC | $2.0M | 36,400 | 0.03% | 9q | -30.7%-$900.8K |
| BANK OF MONTREAL /CAN/ | $2.0M | 36,498 | 0.00% | 10q | +20.3%+$341.9K |
| JPMORGAN CHASE & CO | $2.0M | 35,187 | 0.00% | 31q | +85.2%+$906.3K |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | $1.9M | 33,870 | 0.01% | 11q | -23.7%-$585.3K |
| GROUP ONE TRADING LLC | $1.9M incl. $1.5M options CALL+PUT | 7,136 | 0.00% | 8q | -18.1%-$414.9K |
| NEW YORK STATE COMMON RETIREMENT FUND | $1.9M | 33,399 | 0.00% | 5q | HELD |
| Cerity Partners LLC | $1.8M | 32,463 | 0.00% | 17q | +2.7%+$46.6K |
| Fulcrum Asset Management LLP | $1.8M | 32,076 | 0.18% | new | NEW |
| MERCER GLOBAL ADVISORS INC /ADV | $1.7M | 31,154 | 0.00% | 10q | -7.4%-$137.8K |
| Mork Capital Management, LLC | $1.6M | 28,320 | 1.01% | 3q | HELD |
| VANGUARD CAPITAL MANAGEMENT LLC | $1.5M | 26,589 | 0.00% | 2q | HELD |
| Savant Capital, LLC | $1.4M | 24,582 | 0.00% | 5q | +99.0%+$695.3K |
| VIKING FUND MANAGEMENT LLC | $1.4M | 25,000 | 0.12% | 15q | HELD |
| Schonfeld Strategic Advisors LLC | $1.4M | 24,969 | 0.00% | new | NEW |
| Cadence Wealth Management LLC | $1.4M | 24,863 | 0.62% | 9q | +4.9%+$64.0K |
| Callan Family Office, LLC | $1.4M | 24,482 | 0.03% | 7q | +2.1%+$28.4K |
| Hennion & Walsh Asset Management, Inc. | $1.4M | 24,383 | 0.04% | 4q | +1.4%+$18.9K |
| AMERIPRISE FINANCIAL INC | $1.3M | 23,784 | 0.00% | 27q | +1.4%+$18.8K |
| Vanguard Personalized Indexing Management, LLC | $1.3M | 23,594 | 0.01% | 17q | +13.5%+$156.0K |
| EVERGREEN CAPITAL MANAGEMENT LLC | $1.3M | 23,043 | 0.02% | 23q | -3.8%-$50.2K |
| Laird Norton Wetherby Trust Company, LLC | $1.3M | 22,906 | 0.02% | 3q | -1.7%-$21.6K |
| Tidal Investments LLC | $1.2M | 21,660 | 0.00% | 3q | +17.2%+$176.6K |
| Beck Bode, LLC | $1.2M | 21,659 | 0.18% | 3q | +2.4%+$28.0K |
| Russell Investments Group, Ltd. | $1.2M | 21,128 | 0.00% | 18q | +58.1%+$432.0K |
Showing the largest 100 of 290 reported holders.
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 76 | $120.9M | 2,178,498 | 16 | 16 | 20 | 0.0% |
| Q2 2026 | 290 | $2.2B | 38,388,140 | 52 | 96 | 78 | 2.3% |
| Q1 2026 | 270 | $2.3B | 39,337,085 | 68 | 85 | 66 | 1.7% |
| Q4 2025 | 235 | $1.3B | 32,953,052 | 44 | 72 | 70 | 0.9% |
| Q3 2025 | 229 | $1.3B | 35,711,778 | 37 | 78 | 61 | 0.8% |
| Q2 2025 | 226 | $1.7B | 46,191,483 | 34 | 89 | 68 | 1.1% |
| Q1 2025 | 231 | $2.0B | 51,768,582 | 30 | 71 | 79 | 1.0% |
| Q4 2024 | 237 | $1.9B | 50,789,878 | 48 | 61 | 77 | 1.5% |
| Q3 2024 | 202 | $1.6B | 50,949,717 | 29 | 67 | 72 | 1.9% |
| Q2 2024 | 226 | $1.7B | 55,913,710 | 29 | 76 | 78 | 0.7% |
| Q1 2024 | 240 | $2.4B | 59,592,596 | 50 | 74 | 75 | 0.5% |
| Q4 2023 | 224 | $2.2B | 64,503,640 | 25 | 66 | 78 | 0.3% |
| Q3 2023 | 221 | $2.0B | 61,354,299 | 38 | 69 | 66 | 0.6% |
| Q2 2023 | 205 | $1.9B | 68,985,638 | 32 | 71 | 73 | 0.5% |
| Q1 2023 | 227 | $1.8B | 69,502,310 | 45 | 89 | 49 | 0.5% |
| Q4 2022 | 221 | $2.1B | 63,845,761 | 52 | 55 | 76 | 0.3% |
| Q3 2022 | 178 | $5.0B | 200,023,272 | 27 | 58 | 65 | 0.3% |
| Q2 2022 | 182 | $4.9B | 199,571,455 | 32 | 50 | 67 | 0.2% |
| Q1 2022 | 184 | $7.2B | 247,842,162 | 66 | 50 | 41 | 0.2% |
| Q4 2021 | 147 | $2.4B | 112,159,674 | 28 | 42 | 53 | 0.2% |
| Q3 2021 | 131 | $2.9B | 139,272,462 | 10 | 52 | 40 | 0.5% |
| Q2 2021 | 146 | $2.9B | 132,856,260 | 30 | 39 | 44 | 0.3% |
| Q1 2021 | 132 | $6.3B | 275,493,547 | 23 | 51 | 35 | 0.6% |
| Q4 2020 | 129 | $3.2B | 197,343,325 | 24 | 43 | 44 | 0.2% |
| Q3 2020 | 120 | $3.1B | 311,795,640 | 19 | 33 | 49 | 0.2% |
| Q2 2020 | 129 | $4.1B | 318,051,078 | 32 | 45 | 34 | 0.5% |
| Q1 2020 | 126 | $3.0B | 252,297,052 | 26 | 41 | 39 | 0.2% |
| Q4 2019 | 141 | $5.6B | 247,904,001 | 22 | 33 | 55 | 0.0% |
| Q3 2019 | 134 | $5.7B | 269,681,004 | 12 | 50 | 45 | 0.1% |
| Q2 2019 | 158 | $2.4B | 89,212,210 | 25 | 52 | 54 | 0.6% |
| Q1 2019 | 161 | $2.6B | 92,163,110 | 31 | 49 | 58 | 0.6% |
| Q4 2018 | 168 | $5.0B | 292,320,513 | 3 | 4 | 1 | 0.1% |