Tenaris S.A. - Depositary Receipt (Common Stock)
DE ˙ DB ˙ US88031M1099
55,00 € ↑0,50 (0,92%)
2026-06-03
DEL PRIS
SecurityDE:TW1 / Tenaris S.A. - Depositary Receipt (Common Stock)
InstitutionEthic Inc.
Latest Disclosed Ownership125,572 shares
Latest Disclosed Value $ 7,305,753
Ethic Inc. reports 12.87% decrease in ownership of TW1 / Tenaris S.A. - Depositary Receipt (Common Stock)

On April 27, 2026 - Ethic Inc. filed a 13F-HR form disclosing ownership of 125,572 shares of Tenaris S.A. - Depositary Receipt (Common Stock) (DE:TW1) valued at $6,253,486 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 144,124 shares of Tenaris S.A. - Depositary Receipt (Common Stock). This represents a change in shares of -12.87% during the quarter. The current value of the position is $6,906,460 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)
2026-04-27 2026-03-31 13F TENARIS SA SP ADS SPONSORED ADS 88031M109 125,572 -18,552 -12.87 7,306 31.84 0.1112
2026-02-03 2025-12-31 13F TENARIS SA SP ADS SPONSORED ADS 88031M109 144,124 14,957 11.58 5,542 19.94 0.0852
2025-10-17 2025-09-30 13F TENARIS SA SP ADS ADR 88031M109 129,167 5,636 4.56 4,620 1.34 0.0760
2025-07-30 2025-06-30 13F TENARIS SA SP ADS ADR 88031M109 123,531 10,397 9.19 4,560 2.13 0.0817
2025-05-13 2025-03-31 13F TENARIS SA SP ADS ADR 88031M109 113,134 -7,256 -6.03 4,464 -1.87 0.0904
2025-02-14 2024-12-31 13F TENARIS SA SP ADS ADR 88031M109 120,390 -27,133 -18.39 4,550 -21.47 0.0918
2024-11-13 2024-09-30 13F TENARIS S A SPONSORED ADS 88031M109 147,523 7,440 5.31 5,793 35.51 0.1464
2024-08-13 2024-06-30 13F TENARIS S A SPONSORED ADS 88031M109 140,083 -7,440 -5.04 4,275 -26.20 0.1003
2024-05-13 2024-03-31 13F TENARIS S A SPONSORED ADS 88031M109 147,523 -9,335 -5.95 5,793 6.25 0.1464
2024-02-14 2023-12-31 13F TENARIS S A SPONSORED ADS 88031M109 156,858 2,243 1.45 5,452 11.61 0.1613
2023-11-14 2023-09-30 13F TENARIS S A SPONSORED ADS 88031M109 154,615 -4,952 -3.10 4,886 2.22 0.1714
2023-08-14 2023-06-30 13F TENARIS S A SPONSORED ADS 88031M109 159,567 28,003 21.28 4,779 27.81 0.1772
2023-05-12 2023-03-31 13F TENARIS S A SPONSORED ADS 88031M109 131,564 6,204 4.95 3,739 -15.16 0.1517
2023-02-14 2022-12-31 13F TENARIS S A SPONSORED ADS 88031M109 125,360 7,017 5.93 4,408 44.11 0.2381
2022-11-14 2022-09-30 13F TENARIS S A SPONSORED ADS 88031M109 118,343 -7,223 -5.75 3,058 -5.21 0.2076
2022-08-10 2022-06-30 13F TENARIS S A SPONSORED ADS 88031M109 125,566 -23,909 -16.00 3,226 -28.23 0.2249
2022-05-16 2022-03-31 13F TENARIS S A SPONSORED ADS 88031M109 149,475 55,474 59.01 4,495 129.22 0.3103
2022-02-14 2021-12-31 13F TENARIS S A SPONSORED ADS 88031M109 94,001 45,399 93.41 1,961 91.13 0.1512
2021-11-15 2021-09-30 13F TENARIS S A SPONSORED ADS 88031M109 48,602 5,092 11.70 1,026 7.66 0.1050
2021-08-10 2021-06-30 13F TENARIS S A SPONSORED ADS 88031M109 43,510 21,672 99.24 953 92.14 0.1155
2021-05-13 2021-03-31 13F TENARIS S A SPONSORED ADS 88031M109 21,838 -1,864 -7.86 496 31.22 0.0884
2021-02-10 2020-12-31 13F TENARIS S A SPONSORED ADS 88031M109 23,702 2,571 12.17 378 81.73 0.0999
2020-10-27 2020-09-30 13F TENARIS S A SPONSORED ADS 88031M109 21,131 9,150 76.37 208 34.19 0.0795
2020-08-12 2020-06-30 13F TENARIS S A SPONSORED ADS 88031M109 11,981 11,981 155 0.0882
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.