TENARIS SA-ADR (TS) Institutional Shareholders
TENARIS SA-ADR (TS) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $2.13B in TS holdings during the latest filing period.
Fmr Llc is currently the largest disclosed institutional shareholder of TS tracked by InsiderSet, reporting ownership valued at approximately $375.17M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $380.64M, representing an estimated gain of +1.46% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 57% of the total disclosed TS value among the investors covered in this analysis. Major shareholders include Fmr Llc, Renaissance Technologies LLC, Van Eck Associates Corp, and several other long-term asset managers with concentrated positions in TENARIS SA-ADR (TS).
This page ranks the largest institutional TS shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
278
Total Reported Value
$2.13B
Largest Holder
Fmr Llc
Largest Position
$375.17M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
73
Funds Exiting Positions
1
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Fmr Llc | 0.02% | 6,760,952 | $375,165,203 | $380,641,598 | +$5,476,395 | +1.46% | |
| Renaissance Technologies LLC | Jim Simons | 0.23% | 3,056,044 | $169,579,882 | $172,055,277 | +$2,475,395 | +1.46% |
| Van Eck Associates Corp | 0.08% | 2,478,526 | $137,533,407 | $139,541,014 | +$2,007,607 | +1.46% | |
| Wellington Management Group Llp | 0.02% | 2,458,033 | $136,396,250 | $138,387,258 | +$1,991,008 | +1.46% | |
| Price T Rowe Associates Inc | 0.01% | 1,502,839 | $83,394,000 | $84,609,836 | +$1,215,836 | +1.46% | |
| Morgan Stanley | 0.00% | 1,238,988 | $68,751,503 | $69,755,024 | +$1,003,521 | +1.46% | |
| Goldman Sachs Group Inc | 0.01% | 1,179,501 | $65,450,500 | $66,405,906 | +$955,406 | +1.46% | |
| Merewether Investment Management, Lp | 1.18% | 1,130,692 | $62,742,099 | $63,657,960 | +$915,861 | +1.46% | |
| Dimensional Fund Advisors Lp | 0.01% | 1,039,883 | $57,703,116 | $58,545,413 | +$842,297 | +1.46% | |
| Holocene Advisors, Lp | 0.13% | 1,030,105 | $57,160,526 | $57,994,912 | +$834,386 | +1.46% | |
| Driehaus Capital Management Llc | 0.32% | 1,001,129 | $55,552,648 | $56,363,563 | +$810,915 | +1.46% | |
| Cwa Asset Management Group, Llc | 1.68% | 987,291 | $54,784,766 | $55,584,483 | +$799,717 | +1.46% | |
| Invesco Ltd. | 0.00% | 901,517 | $50,025,178 | $50,755,407 | +$730,229 | +1.46% | |
| Blackrock, Inc. | 0.00% | 747,509 | $41,479,262 | $42,084,757 | +$605,495 | +1.46% | |
| Jane Street Group, Llc | 0.03% | 716,734 | $39,771,570 | $40,352,124 | +$580,554 | +1.46% | |
| Marshall Wace, Llp | 0.03% | 704,368 | $39,085,381 | $39,655,918 | +$570,537 | +1.46% | |
| Massachusetts Financial Services Co | 0.01% | 628,372 | $35,261,803 | $35,377,344 | +$115,541 | +0.33% | |
| Millennium Management Llc | 0.02% | 619,526 | $34,377,498 | $34,879,314 | +$501,816 | +1.46% | |
| Ubs Group Ag | 0.01% | 581,680 | $32,277,422 | $32,748,584 | +$471,162 | +1.46% | |
| Bridgewater Associates, Lp | 0.13% | 568,223 | $31,530,694 | $31,990,955 | +$460,261 | +1.46% | |
| Assetmark, Inc | 0.05% | 560,853 | $31,121,729 | $31,576,024 | +$454,295 | +1.46% | |
| Aventail Capital Group, Lp | 1.78% | 559,941 | $31,071,126 | $31,524,678 | +$453,552 | +1.46% | |
| Freestone Grove Partners Lp | 0.18% | 504,463 | $27,992,652 | $28,401,267 | +$408,615 | +1.46% | |
| Sir Capital Management, L.P. | 2.35% | 368,588 | $20,452,948 | $20,751,504 | +$298,556 | +1.46% | |
| Bank Of America Corp | 0.00% | 343,934 | $19,084,874 | $19,363,484 | +$278,610 | +1.46% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.03% | 293,599 | $16,291,809 | $16,529,624 | +$237,815 | +1.46% | |
| Carrhae Capital Llp | 1.02% | 278,311 | $15,443,477 | $15,668,909 | +$225,432 | +1.46% | |
| Harding Loevner Lp | 0.14% | 264,186 | $14,659,681 | $14,873,672 | +$213,991 | +1.46% | |
| Citadel Advisors Llc | 0.01% | 232,876 | $12,922,289 | $13,110,919 | +$188,630 | +1.46% | |
| Northern Trust Corp | 0.00% | 211,326 | $11,726,480 | $11,897,654 | +$171,174 | +1.46% | |
| Capital Wealth Planning, Llc | 0.06% | 208,408 | $11,564,560 | $11,733,370 | +$168,810 | +1.46% | |
| Grantham, Mayo, Van Otterloo & Co. Llc | 0.02% | 189,569 | $10,519,184 | $10,672,735 | +$153,551 | +1.46% | |
| Aqr Capital Management Llc | 0.00% | 183,476 | $10,181,083 | $10,329,699 | +$148,616 | +1.46% | |
| Kiltearn Partners Llp | 2.34% | 173,766 | $9,642,275 | $9,783,026 | +$140,751 | +1.46% | |
| Lmr Partners Llp | 0.07% | 172,323 | $9,562,203 | $9,701,785 | +$139,582 | +1.46% | |
| Quantinno Capital Management Lp | 0.01% | 163,782 | $9,088,264 | $9,220,927 | +$132,663 | +1.46% | |
| National Bank Of Canada | 0.01% | 146,497 | $8,123,258 | $8,247,781 | +$124,523 | +1.53% | |
| State Street Corp | 0.00% | 143,477 | $7,961,539 | $8,077,755 | +$116,216 | +1.46% | |
| Medina Value Partners, Llc | 1.46% | 134,108 | $7,441,653 | $7,550,280 | +$108,627 | +1.46% | |
| Legal & General Group Plc | 0.00% | 129,637 | $7,193,558 | $7,298,563 | +$105,005 | +1.46% | |
| Capital Fund Management S.A. | 0.05% | 125,440 | $6,960,665 | $7,062,272 | +$101,607 | +1.46% | |
| Xtx Topco Ltd | 0.09% | 124,656 | $6,917,161 | $7,018,133 | +$100,972 | +1.46% | |
| Hrt Financial Lp | 0.01% | 124,288 | $6,896,000 | $6,997,414 | +$101,414 | +1.47% | |
| Y-Intercept (Hong Kong) Ltd | 0.12% | 112,363 | $6,235,023 | $6,326,037 | +$91,014 | +1.46% | |
| Lighthouse Investment Partners, Llc | 0.18% | 105,655 | $5,862,796 | $5,948,377 | +$85,581 | +1.46% | |
| Point72 Asset Management, L.P. | 0.01% | 103,502 | $5,743,326 | $5,827,163 | +$83,837 | +1.46% | |
| Ethic Inc. | 0.07% | 98,988 | $5,492,838 | $5,573,024 | +$80,186 | +1.46% | |
| Exoduspoint Capital Management, Lp | 0.05% | 92,044 | $5,107,522 | $5,182,077 | +$74,555 | +1.46% | |
| Silvercrest Asset Management Group Llc | 0.03% | 80,885 | $4,488,309 | $4,553,826 | +$65,517 | +1.46% | |
| Leuthold Group, Llc | 0.45% | 80,367 | $4,459,565 | $4,524,662 | +$65,097 | +1.46% |
Frequently asked questions about TS
Who owns the most TS stock?
The largest holders of TS are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for TENARIS SA-ADR (TS).
Is TS widely held by superinvestors?
Many widely followed stocks like TS appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly TS is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.