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

SecurityTS / Tenaris S.A. - Depositary Receipt (Common Stock)
InstitutionWetherby Asset Management Inc
Latest Disclosed Ownership16,268 shares
Latest Disclosed Value $ 581,907
Wetherby Asset Management Inc reports 4.17% decrease in ownership of TS / Tenaris S.A. - Depositary Receipt (Common Stock)

On November 14, 2025 - Wetherby Asset Management Inc filed a 13F-HR form disclosing ownership of 16,268 shares of Tenaris S.A. - Depositary Receipt (Common Stock) (US:TS) valued at $581,906 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 14, 2025 disclosing 16,976 shares of Tenaris S.A. - Depositary Receipt (Common Stock). This represents a change in shares of -4.17% during the quarter. The current value of the position is $999,506 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)
2025-11-14 2025-09-30 13F TENARIS S A SPONSORED ADS 88031M109 16,268 -708 -4.17 582 -8.36 0.0238
2025-08-14 2025-06-30 13F TENARIS S A SPONSORED ADS 88031M109 16,976 -1,287 -7.05 635 -8.12 0.0283
2025-02-14 2024-12-31 13F TENARIS S A SPONSORED ADS 88031M109 18,263 151 0.83 690 20.00 0.0331
2024-11-14 2024-09-30 13F TENARIS S A SPONSORED ADS 88031M109 18,112 -4,182 -18.76 576 -15.44 0.0263
2024-08-14 2024-06-30 13F TENARIS S A SPONSORED ADS 88031M109 22,294 -2,966 -11.74 680 -31.38 0.0321
2024-05-15 2024-03-31 13F TENARIS S A SPONSORED ADS 88031M109 25,260 2 0.01 992 13.00 0.0473
2024-02-14 2023-12-31 13F TENARIS S A SPONSORED ADS 88031M109 25,258 840 3.44 878 13.75 0.0457
2023-11-14 2023-09-30 13F TENARIS S A SPONSORED ADS 88031M109 24,418 -156 -0.63 772 4.90 0.0438
2023-08-14 2023-06-30 13F TENARIS S A SPONSORED ADS 88031M109 24,574 1,828 8.04 736 13.78 0.0396
2023-05-12 2023-03-31 13F TENARIS S A SPONSORED ADS 88031M109 22,746 -1,587 -6.52 646 -24.44 0.0378
2023-02-14 2022-12-31 13F TENARIS S A SPONSORED ADS 88031M109 24,333 951 4.07 856 41.56 0.0549
2022-11-14 2022-09-30 13F TENARIS S A SPONSORED ADS 88031M109 23,382 1,497 6.84 604 7.47 0.0426
2022-08-15 2022-06-30 13F TENARIS S A SPONSORED ADS 88031M109 21,885 4,251 24.11 562 6.04 0.0384
2022-05-16 2022-03-31 13F TENARIS S A SPONSORED ADS 88031M109 17,634 557 3.26 530 48.88 0.0304
2022-02-14 2021-12-31 13F TENARIS S A SPONSORED ADS 88031M109 17,077 721 4.41 356 3.19 0.0200
2021-11-15 2021-09-30 13F TENARIS S A SPONSORED ADS 88031M109 16,356 -153 -0.93 345 -4.70 0.0213
2021-08-16 2021-06-30 13F TENARIS S A SPONSORED ADS 88031M109 16,509 222 1.36 362 -1.90 0.0221
2021-05-14 2021-03-31 13F TENARIS S A SPONSORED ADS 88031M109 16,287 -20 -0.12 369 41.92 0.0281
2021-02-11 2020-12-31 13F TENARIS S A SPONSORED ADS 88031M109 16,307 15,502 1,925.71 260 3,150.00 0.0176
2020-12-16 2020-09-30 13F/A-01 TENARIS S A SPONSORED ADS 88031M109 12,549 -5,856 124 0.0114
2020-12-16 2020-09-30 13F/A-02 TENARIS S A SPONSORED ADS 88031M109 805 -17,600 -95.63 8 -96.64 0.0240
2020-11-13 2020-09-30 13F TENARIS S A SPONSORED ADS 88031M109 13,354 -5,051 132 8,396.3590
2020-08-14 2020-06-30 13F TENARIS S A SPONSORED ADS 88031M109 18,405 3,846 26.42 238 35.23 0.0226
2020-05-06 2020-03-31 13F TENARIS S A SPONSORED ADS 88031M109 14,559 14,559 176 0.0198
2019-10-31 2019-09-30 13F TENARIS S A SPONSORED ADS 88031M109 0 -9,117 -100.00 0 -100.00
2019-07-25 2019-06-30 13F TENARIS S A SPONSORED ADS 88031M109 9,117 936 11.44 240 3.90 0.0263
2019-07-25 2019-03-31 13F/A-1 TENARIS S A SPONSORED ADS 88031M109 8,181 -2,187 -21.09 231 4.52 0.0288
2019-05-09 2019-03-31 13F TENARIS S A SPONSORED ADS 88031M109 8,181 -2,187 231
2019-01-30 2018-12-31 13F TENARIS S A SPONSORED ADR 88031M109 10,368 -1,393 -11.84 221 -44.05 0.0313
2018-11-07 2018-09-30 13F TENARIS S A SPONSORED ADR 88031M109 11,761 -294 -2.44 395 -10.02 0.0488
2018-07-24 2018-06-30 13F TENARIS S A SPONSORED ADR 88031M109 12,055 7 0.06 439 5.02 0.0594
2018-05-04 2018-03-31 13F TENARIS S A SPONSORED ADR 88031M109 12,048 1,176 10.82 418 20.81 0.0577
2018-02-09 2017-12-31 13F TENARIS S A SPONSORED ADR 88031M109 10,872 355 3.38 346 16.11 0.0480
2017-11-13 2017-09-30 13F TENARIS S A SPONSORED ADR 88031M109 10,517 128 1.23 298 -7.74 0.0443
2017-08-01 2017-06-30 13F TENARIS S A SPONSORED ADR 88031M109 10,389 -166 -1.57 323 -10.28 0.0550
2017-04-27 2017-03-31 13F TENARIS S A SPONSORED ADR 88031M109 10,555 141 1.35 360 -3.23 0.0647
2017-02-08 2016-12-31 13F TENARIS S A SPONSORED ADR 88031M109 10,414 542 5.49 372 32.38 0.0729
2016-11-14 2016-09-30 13F TENARIS S A SPONSORED ADR 88031M109 9,872 9,872 281 0.0568
2016-05-10 2016-03-31 13F TENARIS S A SPONSORED ADR 88031M109 0 -10,259 -100.00 0 -100.00
2016-02-08 2015-12-31 13F TENARIS S A SPONSORED ADR 88031M109 10,259 577 5.96 245 5.15 0.0587
2015-11-12 2015-09-30 13F TENARIS S A SPONSORED ADR 88031M109 9,682 9,682 233 0.0597
2015-02-12 2014-12-31 13F TENARIS S A SPONSORED ADR 88031M109 0 -4,734 -100.00 0 -100.00
2014-11-03 2014-09-30 13F TENARIS S A SPONSORED ADR 88031M109 4,734 4,734 216 0.0602
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.