Who Owns TS?

Tenaris S.A. — Institutional Ownership & 13F Holdings

EnergyNYSE

$63.02

-0.28 (-0.43%)

Market Cap

$28.6B

Shares Outstanding

536,564,622

Institutional Holders

224

Total Inst. Value

$9.7B

% of Float Held

QoQ Holder Change

+26

Institutional data as of Q1 2025

New Positions

40

Closed Positions

41

Increased

70

Decreased

80

Institutional Ownership Trend

Top 10 Institutional Holders(Q1 2025)

#FundValueShares
1THORNBURG INVESTMENT MANAGEMENT INC$8.2B21,063
2RENAISSANCE TECHNOLOGIES LLC$105.7M2,702,844
3Sourcerock Group LLC$95.8M2,450,258
4Alua Capital Management LPNew$93.4M2,387,363
5WELLINGTON MANAGEMENT GROUP LLP$91.0M2,327,117
6FMR LLC$90.9M2,324,478
7Encompass Capital Advisors LLC$82.0M2,097,540
8MORGAN STANLEY$71.6M1,831,306
9VAN ECK ASSOCIATES CORPNew$71.1M1,817,899
10BALYASNY ASSET MANAGEMENT L.P.$67.1M1,714,769

Biggest Buyers & Sellers This Quarter

Top Buyers

FundShares AddedValue
RENAISSANCE TECHNOLOGIES LLC+184K$105.7M
Sourcerock Group LLC+357K$95.8M
Alua Capital Management LPNew+2.4M$93.4M
Encompass Capital Advisors LLC+998K$82.0M
MORGAN STANLEY+433K$71.6M

Top Sellers

FundShares RemovedValue
MILLENNIUM MANAGEMENT LLC-1.6M$46K
ABC ARBITRAGE SA-703K$5.2M
Orbis Allan Gray Ltd-649K$14.8M
CAPITAL FUND MANAGEMENT S.A.-443K$3.1M
FMR LLC-409K$90.9M

Famous Fund Managers

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Frequently Asked Questions

How many institutional investors hold TS?

As of Q1 2025, 224 institutional investors report holding TS (Tenaris S.A.) in their 13F filings.

Which hedge fund owns the most TS?

The largest institutional holder of TS is THORNBURG INVESTMENT MANAGEMENT INC with $8.2B in shares.

Are institutions buying or selling TS?

This quarter, 40 institutions opened new positions in TS and 41 closed their positions.

What is 13F institutional ownership?

SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.

How often is institutional ownership data updated?

13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.