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Buy Day today: Neutral (52) Mixed market breadth · no major macro event
TS

Tenaris SA

Energy · Oil & Gas Equipment & Services

61.30$ +0.5% vs. previous close Closing price · As of: Nov 13, 2026

Ownership

Ownership Structure

Who owns Tenaris SA (TS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 63.1% of the shares are freely tradable; institutional investors hold 6.8%.

Institutional ownership ?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings. 6.8%
Insiders ?Share of the stock held by the executives, founders and major shareholders of the company itself. 0.00%
Float ?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders. 63.1%
Short % of float ?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices. 2.2%
Shares Outstanding ?Total number of shares issued. Price times share count gives market cap. 505Mio.

Largest Shareholders

Institutions

Institutions TS
Name Stake (%) Shares Change (%) Date
FMR Inc 1.34 6,760,952 -18.1 06/30/2026
Renaissance Technologies Corp 0.61 3,056,044 -4.5 06/30/2026
Van Eck Associates Corporation 0.49 2,478,526 -14.3 06/30/2026
Wellington Management Company LLP 0.49 2,458,033 +2.2 06/30/2026
T. Rowe Price Associates, Inc. 0.30 1,502,839 +4.0 06/30/2026
Morgan Stanley - Brokerage Accounts 0.25 1,238,988 +5.2 06/30/2026
The Goldman Sachs Group Inc 0.23 1,179,501 +63.6 06/30/2026
Merewether Investment Management, LP 0.22 1,130,692 +0.0 06/30/2026

Funds

Funds TS
Name Stake (%) Shares Change (%) Date
VanEck Oil Services ETF 0.36 1,830,676 +2.1 10/31/2026
Vanguard Energy Opportunities Inv 0.34 1,710,417 -0.6 09/30/2026

Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.

Data as of: November 13, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

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