Tenaris S.A. - Depositary Receipt (Common Stock)
US ˙ NYSE ˙ US88031M1099

SecurityTS / Tenaris S.A. - Depositary Receipt (Common Stock)
InstitutionVan Eck Associates Corp
Latest Disclosed Ownership2,893,032 shares
Latest Disclosed Value $ 168,317
Van Eck Associates Corp reports 43.28% increase in ownership of TS / Tenaris S.A. - Depositary Receipt (Common Stock)

On May 15, 2026 - Van Eck Associates Corp filed a 13F-HR form disclosing ownership of 2,893,032 shares of Tenaris S.A. - Depositary Receipt (Common Stock) (US:TS) valued at $168,316,602 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,019,185 shares of Tenaris S.A. - Depositary Receipt (Common Stock). This represents a change in shares of 43.28% during the quarter. The current value of the position is $185,211,909 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F Tenaris SPONSORED ADS 88031M109 2,893,032 873,847 43.28 168 118.18 0.1103
2026-02-13 2025-12-31 13F Tenaris SPONSORED ADS 88031M109 2,019,185 408,592 25.37 78 35.09 0.0642
2025-11-13 2025-09-30 13F Tenaris SPONSORED ADS 88031M109 1,610,593 -5,101 -0.32 58 -5.00 0.0535
2025-08-14 2025-06-30 13F Tenaris SPONSORED ADS 88031M109 1,615,694 -202,205 -11.12 60 -15.49 0.0684
2025-05-15 2025-03-31 13F Tenaris SPONSORED ADS 88031M109 1,817,899 -493,136 -21.34 71 -18.39 0.0919
2025-01-29 2024-12-31 13F Tenaris SPONSORED ADS 88031M109 2,311,035 -375,196 -13.97 87 2.35 0.1118
2024-10-29 2024-09-30 13F Tenaris SPONSORED ADS 88031M109 2,686,231 -497,068 -15.61 85 -12.37 0.1062
2024-07-31 2024-06-30 13F Tenaris SPONSORED ADS 88031M109 3,183,299 313,185 10.91 97 -13.39 0.1380
2024-04-30 2024-03-31 13F Tenaris SPONSORED ADS 88031M109 2,870,114 -403,455 -12.32 113 -0.88 0.1704
2024-02-05 2023-12-31 13F Tenaris SPONSORED ADS 88031M109 3,273,569 -1,006,091 -23.51 114 -16.30 0.2071
2023-11-08 2023-09-30 13F Tenaris SPONSORED ADS 88031M109 4,279,660 256,547 6.38 135 12.50 0.2968
2023-08-03 2023-06-30 13F Tenaris SPONSORED ADS 88031M109 4,023,113 -191,238 -4.54 120 0.84 0.2637
2023-05-03 2023-03-31 13F Tenaris SPONSORED ADS 88031M109 4,214,351 362,756 9.42 120 -11.85 0.2727
2023-02-08 2022-12-31 13F Tenaris SPONSORED ADS 88031M109 3,851,595 -231,374 -5.67 135 -99.87 0.3499
2022-10-27 2022-09-30 13F Tenaris SPONSORED ADS 88031M109 4,082,969 -1,329,994 -24.57 105,504 -24.13 0.3139
2022-08-03 2022-06-30 13F Tenaris SPONSORED ADS 88031M109 5,412,963 -1,739,350 -24.32 139,059 -35.34 0.3687
2022-05-10 2022-03-31 13F Tenaris SPONSORED ADS 88031M109 7,152,313 1,555,180 27.79 215,070 84.20 0.4439
2022-01-26 2021-12-31 13F Tenaris SPONSORED ADS 88031M109 5,597,133 -950,526 -14.52 116,756 -15.53 0.2701
2021-11-03 2021-09-30 13F Tenaris SPONSORED ADS 88031M109 6,547,659 -532,698 -7.52 138,221 -10.86 0.3475
2021-08-10 2021-06-30 13F Tenaris SPONSORED ADS 88031M109 7,080,357 3,806,271 116.25 155,060 108.73 0.3669
2021-05-13 2021-03-31 13F Tenaris SPONSORED ADS 88031M109 3,274,086 796,319 32.14 74,289 87.98 0.2021
2021-02-09 2020-12-31 13F Tenaris SPONSORED ADS 88031M109 2,477,767 187,085 8.17 39,520 75.15 0.1151
2020-12-04 2020-09-30 13F/A-1 Tenaris SPONSORED ADS 88031M109 2,290,682 250,412 12.27 22,563 -14.47 0.0718
2020-11-12 2020-09-30 13F Tenaris SPONSORED ADS 88031M109 2,290,682 250,412 22,563 69,953.2857
2020-08-14 2020-06-30 13F/A-1 Tenaris SPONSORED ADS 88031M109 2,040,270 625,028 44.16 26,381 54.69 0.0919
2020-08-10 2020-06-30 13F Tenaris SPONSORED ADS 88031M109 2,040,270 625,028 26,381 89,622.8885
2020-05-12 2020-03-31 13F Tenaris SPONSORED ADS 88031M109 1,415,242 -336,413 -19.21 17,054 -57.00 0.0866
2020-02-13 2019-12-31 13F Tenaris SPONSORED ADS 88031M109 1,751,655 150,242 9.38 39,657 16.92 0.1532
2019-11-08 2019-09-30 13F Tenaris SPONSORED ADS 88031M109 1,601,413 3,490 0.22 33,918 -19.32 0.1589
2019-08-07 2019-06-30 13F Tenaris SPONSORED ADS 88031M109 1,597,923 94,100 6.26 42,041 -1.04 0.2025
2019-05-13 2019-03-31 13F Tenaris SPONSORED ADS 88031M109 1,503,823 -1,002,758 -40.01 42,483 -20.50 0.2087
2019-02-12 2018-12-31 13F Tenaris SPONSORED ADR 88031M109 2,506,581 -1,025,574 -29.04 53,440 -54.86 0.2680
2018-11-13 2018-09-30 13F Tenaris SPONSORED ADR 88031M109 3,532,155 -320,567 -8.32 118,398 -15.55 0.5775
2018-08-13 2018-06-30 13F Tenaris SPONSORED ADR 88031M109 3,852,722 105,340 2.81 140,201 7.91 0.6555
2018-05-11 2018-03-31 13F Tenaris SPONSORED ADR 88031M109 3,747,382 -218,999 -5.52 129,922 2.81 0.6457
2018-02-12 2017-12-31 13F Tenaris SPONSORED ADR 88031M109 3,966,381 357,468 9.91 126,369 23.69 0.6233
2017-11-09 2017-09-30 13F Tenaris SPONSORED ADR 88031M109 3,608,913 300,807 9.09 102,168 -0.82 0.5219
2017-08-11 2017-06-30 13F Tenaris SPONSORED ADR 88031M109 3,308,106 -276,627 -7.72 103,014 -15.83 0.5632
2017-05-11 2017-03-31 13F Tenaris SPONSORED ADR 88031M109 3,584,733 15,672 0.44 122,383 -3.98 0.5395
2017-02-09 2016-12-31 13F Tenaris SPONSORED ADR 88031M109 3,569,061 1,547,870 76.58 127,451 122.03 0.6350
2016-11-14 2016-09-30 13F Tenaris SPONSORED ADR 88031M109 2,021,191 39,591 2.00 57,402 0.44 0.2671
2016-08-12 2016-06-30 13F Tenaris SPONSORED ADR 88031M109 1,981,600 115,366 6.18 57,149 23.68 0.2928
2016-05-13 2016-03-31 13F Tenaris SPONSORED ADR 88031M109 1,866,234 -500,663 -21.15 46,208 -17.97 0.3112
2016-02-12 2015-12-31 13F Tenaris SPONSORED ADR 88031M109 2,366,897 244,294 11.51 56,332 10.08 0.4469
2015-11-12 2015-09-30 13F Tenaris SPONSORED ADR 88031M109 2,122,603 337,258 18.89 51,176 6.09 0.3932
2015-08-12 2015-06-30 13F Tenaris SPONSORED ADR 88031M109 1,785,345 51,228 2.95 48,240 -0.65 0.2853
2015-05-14 2015-03-31 13F Tenaris SPONSORED ADR 88031M109 1,734,117 446,083 34.63 48,555 24.78 0.2804
2015-02-13 2014-12-31 13F Tenaris SPONSORED ADR 88031M109 1,288,034 123,320 10.59 38,912 -26.65 0.2419
2014-11-14 2014-09-30 13F Tenaris SPONSORED ADR 88031M109 1,164,714 -22,568 -1.90 53,053 -5.23 0.2810
2014-08-14 2014-06-30 13F TENARIS S A SPONSORED ADR 88031M109 1,187,282 -217,521 -15.48 55,980 -9.95 0.2583
2014-05-08 2014-03-31 13F TENARIS S A SPONSORED ADR 88031M109 1,404,803 120,881 9.41 62,163 10.82 0.3085
2014-02-12 2013-12-31 13F TENARIS S A SPONSORED ADR 88031M109 1,283,922 -168,040 -11.57 56,095 -17.41 0.2832
2013-11-14 2013-09-30 13F TENARIS S A SPONSORED ADR 88031M109 1,451,962 -301,748 -17.21 67,923 -3.82 0.3457
2013-08-14 2013-06-30 13F TENARIS S A SPONSORED ADR 88031M109 1,753,710 1,753,710 70,622 0.3848
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.