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

SecurityTS / Tenaris S.A. - Depositary Receipt (Common Stock)
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership853 shares
Latest Disclosed Value $ 49,705
Advisor Group Holdings, Inc. reports 19.60% decrease in ownership of TS / Tenaris S.A. - Depositary Receipt (Common Stock)

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 853 shares of Tenaris S.A. - Depositary Receipt (Common Stock) (US:TS) valued at $49,628 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,061 shares of Tenaris S.A. - Depositary Receipt (Common Stock). This represents a change in shares of -19.60% during the quarter. The current value of the position is $52,408 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.

Upgrade to unlock premium data and export to Excel .

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 S A SPONSORED ADS 88031M109 853 -208 -19.60 50 22.50 0.0000
2026-02-17 2025-12-31 13F TENARIS S A SPONSORED ADS 88031M109 1,061 -34,810 -97.04 41 -96.88 0.0001
2025-11-14 2025-09-30 13F TENARIS S A SPONSORED ADS 88031M109 35,871 -851 -2.32 1,283 -10.53 0.0018
2025-09-04 2025-06-30 13F/A-1 ENARIS S A SPONSORED ADS 88031M109 36,722 34,969 1,994.81 1,434 2,008.82 0.0026
2025-08-13 2025-06-30 13F ENARIS S A SPONSORED ADS 88031M109 38,818 37,065 1,514 0.0018
2025-05-12 2025-03-31 13F TENARIS S A SPONSORED ADS 88031M109 1,753 -22,540 -92.78 69 -92.59 0.0002
2025-06-06 2024-12-31 13F/A-1 TENARIS S A SPONSORED ADS 88031M109 24,293 312 1.30 918 20.47 0.0021
2025-02-07 2024-12-31 13F TENARIS S A SPONSORED ADS 88031M109 21,929 -2,052 826 0.0021
2024-11-13 2024-09-30 13F TENARIS S A SPONSORED ADS 88031M109 23,981 -2,989 -11.08 762 -7.41 0.0017
2024-08-13 2024-06-30 13F TENARIS S A SPONSORED ADS 88031M109 26,970 5,366 24.84 823 -2.95 0.0019
2024-05-10 2024-03-31 13F TENARIS S A SPONSORED ADS 88031M109 21,604 271 1.27 848 14.44 0.0019
2024-02-12 2023-12-31 13F TENARIS S A SPONSORED ADS 88031M109 21,333 -1,828 -7.89 742 1.37 0.0013
2023-11-13 2023-09-30 13F TENARIS S A SPONSORED ADS 88031M109 23,161 -63,165 -73.17 732 -71.73 0.0011
2023-08-21 2023-06-30 13F/A-1 TENARIS S A SPONSORED ADS 88031M109 86,326 1,305 1.53 2,586 7.04 0.0046
2023-08-10 2023-06-30 13F TENARIS S A SPONSORED ADS 88031M109 86,326 1,305 2,586 0.0007
2023-05-12 2023-03-31 13F TENARIS S A SPONSORED ADS 88031M109 85,021 6,034 7.64 2,417 -13.00 0.0045
2023-02-10 2022-12-31 13F TENARIS S A SPONSORED ADS 88031M109 78,987 27,479 53.35 2,777 108.64 0.0056
2022-11-14 2022-09-30 13F TENARIS S A SPONSORED ADS 88031M109 51,508 38,049 282.70 1,331 284.68 0.0030
2022-08-10 2022-06-30 13F TENARIS S A SPONSORED ADS 88031M109 13,459 -18,733 -58.19 346 -64.37 0.0008
2022-05-04 2022-03-31 13F TENARIS S A SPONSORED ADS 88031M109 32,192 26,377 453.60 971 702.48 0.0019
2022-02-03 2021-12-31 13F TENARIS S A SPONSORED ADS 88031M109 5,815 -26,560 -82.04 121 -82.31 0.0002
2021-11-05 2021-09-30 13F TENARIS S A SPONSORED ADS 88031M109 32,375 25,759 389.34 684 375.00 0.0014
2021-08-02 2021-06-30 13F TENARIS S A SPONSORED ADS 88031M109 6,616 5,108 338.73 144 323.53 0.0003
2021-05-13 2021-03-31 13F TENARIS S A SPONSORED ADS 88031M109 1,508 -1,946 -56.34 34 -38.18 0.0001
2021-02-10 2020-12-31 13F TENARIS S A SPONSORED ADS 88031M109 3,454 -19 -0.55 55 30.95 0.0001
2020-11-12 2020-09-30 13F TENARIS S A SPONSORED ADS 88031M109 3,473 145 4.36 42 -2.33 0.0001
2020-08-14 2020-06-30 13F TENARIS S A SPONSORED ADS 88031M109 3,328 -6,793 -67.12 43 0.00 0.0001
2020-05-18 2020-03-31 13F TENARIS S A SPONSORED ADS 88031M109 10,121 10,121 43 0.0002
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.