Stocks › TS
TENARIS SA
TS·NYSE·
Luxembourg·USD
Luxembourg·USD$56.87
-1.59 (-2.72%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
TS
TENARIS SA · NYSE
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
TSS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of TS by members of U.S. Congress · 6 on record
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 Greg GianforteHouse · R · MT |
TSTENARIS SA · Stock |
Sale $15,001 - $50,000 |
Dec 2, 2020 | Nov 13, 2020 | Filing ↗ |
 Donna ShalalaHouse · D · FL |
TSTENARIS SA · Stock |
Sale $1,001 - $15,000 |
Apr 27, 2020 | Feb 15, 2019 | Filing ↗ |
| Greg GianforteHouse · R · MT |
TSTENARIS SA · Stock |
Sale $50,001 - $100,000 |
Mar 29, 2019 | Mar 4, 2019 | Filing ↗ |
 Josh GottheimerHouse · D · NJ |
TSTENARIS SA · Stock |
Sale $1,001 - $15,000 |
Feb 25, 2019 | Feb 15, 2019 | Filing ↗ |
| Greg GianforteHouse · R · MT |
TSTENARIS SA · Stock |
Purchase $15,001 - $50,000 |
Jan 23, 2019 | Dec 21, 2018 | Filing ↗ |
 Lois FrankelHouse · D · FL |
TSTENARIS SA · Stock |
Sale $1,001 - $15,000 |
Jun 18, 2014 | Jun 12, 2014 | Filing ↗ |
Whale Activity
Position changes in TS reported for 2026-06-30 by 11 tracked institutional filers
- Increased3
- New2
- Held1
- Decreased2
- Closed1
- No prior filing2
| Filer | Shares | Value | Change |
|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC | 3.1M | $169.6M | decreased |
| BlackRock, Inc. | 747.5K | $41.5M | increased |
| MILLENNIUM MANAGEMENT LLC | 619.5K | $34.4M | increased |
| Bridgewater Associates, LP | 568.2K | $31.5M | increased |
| CITADEL ADVISORS LLC | 232.9K | $12.9M | decreased |
| Kiltearn Partners LLP | 173.8K | $9.6M | — |
| Point72 Asset Management, L.P. | 103.5K | $5.7M | new |
| VANGUARD CAPITAL MANAGEMENT LLC | 26.6K | $1.5M | held |
| ALTRINSIC GLOBAL ADVISORS LLC | 10.6K | $589K | — |
| D. E. Shaw & Co., Inc. | 4,787 | $266K | new |
| Two Sigma Investments, LP | 0 | $0 | closed |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by TS insiders, by quarter · Form 4
No open-market insider buys or sells in the last two years.
Recent Insider Transactions
0 transactions on record · newest first
No insider transactions on record.
Fund Holders
Mutual funds and ETFs holding TS · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| Fidelity Advisor Focused Emerging Markets Fund Fidelity Advisor Series VIII | 1.9M | $109.9M | 0.84% | Jul 31, 2026 |
| VanEck Oil Services ETF VanEck ETF Trust | 1.8M | $102.0M | 5.12% | Jun 30, 2026 |
| Fidelity Series Emerging Markets Opportunities Fund Fidelity Investment Trust | 1.0M | $58.4M | 0.18% | Jul 31, 2026 |
| Strategic Advisers Fidelity Emerging Markets Fund Fidelity Rutland Square Trust II | 871.5K | $53.1M | 0.13% | May 31, 2026 |
| MFS International New Discovery Fund MFS Series Trust V | 598.7K | $33.2M | 0.44% | Jun 30, 2026 |
| Driehaus Emerging Markets Growth Fund Driehaus Mutual Funds | 444.1K | $24.6M | 0.48% | Jun 30, 2026 |
| Invesco International Small-Mid Company Fund AIM International Mutual Funds (Invesco International Mutual Funds) | 392.8K | $22.5M | 0.94% | Jul 31, 2026 |
| T. Rowe Price Real Assets Fund, Inc. | 370.0K | $20.5M | 0.20% | Jun 30, 2026 |
| T. Rowe Price New Era Fund T. ROWE PRICE NEW ERA FUND, INC. | 356.7K | $19.8M | 0.69% | Jun 30, 2026 |
| THE DFA INTERNATIONAL VALUE SERIES DFA INVESTMENT TRUST CO | 322.2K | $18.5M | 0.10% | Jul 31, 2026 |
Mutual funds and ETFs whose N-PORT filings list TS's shares (CUSIP 88031M109), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
No 13D/13G beneficial-ownership filings on record.
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming TENARIS SA as client
No lobbying filings found naming TENARIS SA as the client.
Government Contracts
Federal awards to TENARIS SA · USAspending
No federal contract awards found for TENARIS SA.
U.S. Patents
Recent USPTO applications naming TENARIS SA
No USPTO patent applications found for TENARIS SA.
Annual Financials
From TS's 10-K filings · XBRL
No annual XBRL figures on record for TS. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
- 5-for-1Stock splitApr 27, 2006
Split dates and ratios from the price history · Close Prices from Tiingo.com
Material Events (8-K)
Corporate events filed with the SEC
No 8-K filings on record.
About TENARIS SA
From SEC EDGAR company records
Industry (SIC 3312)Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens)
SectorIndustrials
HeadquartersLUXEMBOURG, Luxembourg
SEC CIK0001190723 ↗