Stock Ownership/TS

TENARIS S A (TS): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in TS · Energy. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
17
13F filers
Aggregate Value
$390.4M
Across holders
Last Price
$53.42
2026-08-24
Sector
Energy
GICS
Quarterly fund activity14 increased3 reduced2 exited
Full exits: TWO SIGMA INVESTMENTS, LP, ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
Institutional Holders of TS
↗
17 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund3.06M$169.6M43.4%0.2%Reduced$-8.0MQ2 2026
Holocene Advisors, LP
CIK 0001700574
Hedge Fund1.03M$57.2M14.6%0.1%Added—Q2 2026
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund704K$39.1M10.0%0.0%Added+$38.3MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund620K$34.4M8.8%0.0%Added+$30.6MQ2 2026
Bridgewater Associates, LP
CIK 0001350694
Hedge Fund568K$31.5M8.1%0.1%Added+$29.9MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund233K$12.9M3.3%0.0%Reduced$-4.3MQ2 2026
Grantham, Mayo, Van Otterloo & Co. LLC
CIK 0001352662
Institutional Manager190K$10.5M2.7%0.0%Reduced$-8.8MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund183K$10.2M2.6%0.0%Added$-21.1MQ2 2026
Lighthouse Investment Partners, LLC
CIK 0001600344
Hedge Fund106K$5.9M1.5%0.2%Added+$3.5MQ2 2026
Point72 Asset Management, L.P.
CIK 0001603466
Hedge Fund104K$5.7M1.5%0.0%Added—Q2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$169.6M· 43.4% of total· 0.2% port· 3.06M sh· $-8.0M QoQ· Q2 2026
Holocene Advisors, LPAdded
Hedge Fund
$57.2M· 14.6% of total· 0.1% port· 1.03M sh· — QoQ· Q2 2026
MARSHALL WACE, LLPAdded
Hedge Fund
$39.1M· 10.0% of total· 0.0% port· 704K sh· +$38.3M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$34.4M· 8.8% of total· 0.0% port· 620K sh· +$30.6M QoQ· Q2 2026
Bridgewater Associates, LPAdded
Hedge Fund
$31.5M· 8.1% of total· 0.1% port· 568K sh· +$29.9M QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$12.9M· 3.3% of total· 0.0% port· 233K sh· $-4.3M QoQ· Q2 2026
Grantham, Mayo, Van Otterloo & Co. LLCReduced
Institutional Manager
$10.5M· 2.7% of total· 0.0% port· 190K sh· $-8.8M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$10.2M· 2.6% of total· 0.0% port· 183K sh· $-21.1M QoQ· Q2 2026
Lighthouse Investment Partners, LLCAdded
Hedge Fund
$5.9M· 1.5% of total· 0.2% port· 106K sh· +$3.5M QoQ· Q2 2026
Point72 Asset Management, L.P.Added
Hedge Fund
$5.7M· 1.5% of total· 0.0% port· 104K sh· — QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$5.1M· 1.3% of total· 0.0% port· 92K sh· — QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCAdded
Hedge Fund
$2.5M· 0.6% of total· 0.0% port· 45K sh· — QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$2.0M· 0.5% of total· 0.0% port· 37K sh· — QoQ· Q2 2026
Fulcrum Asset Management LLPAdded
Hedge Fund
$1.8M· 0.5% of total· 0.2% port· 32K sh· — QoQ· Q2 2026
Schonfeld Strategic Advisors LLCAdded
Hedge Fund
$1.4M· 0.4% of total· 0.0% port· 25K sh· — QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$295K· 0.1% of total· 0.0% port· 5K sh· +$211K QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$266K· 0.1% of total· 0.0% port· 5K sh· — QoQ· Q2 2026
1–10 of 17
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