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Tenaris
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Overview Fund Activity

218 hedge funds and large institutions have $1.42B invested in Tenaris in 2025 Q2 according to their latest regulatory filings, with 36 funds opening new positions, 87 increasing their positions, 67 reducing their positions, and 38 closing their positions.

Holders
218
Holders Change
-6
Holders Change %
-2.68%
% of All Funds
2.93%
Holding in Top 10
2
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-50%
% of All Funds
0.03%
New
36
Increased
87
Reduced
67
Closed
38
Calls
$5.68M
Puts
$9.4M
Net Calls
-$3.72M
Net Calls Change
-$4.11M

Top Buyers

1
SG
1
Sourcerock Group
Colorado
$115M
2
SCM
2
SIR Capital Management
New York
$25.8M
3
UBS Group
3
UBS Group
Switzerland
$59.3M
4
Capstone Investment Advisors
4
Capstone Investment Advisors
New York
$34.5M
5
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$35.2M

Top Sellers

1
ACM
1
Alua Capital Management
New York
$0
2
Citadel Advisors
2
Citadel Advisors
Florida
$64.4M
3
Holocene Advisors
3
Holocene Advisors
New York
$0
4
MIM
4
Merewether Investment Management
Texas
$20M
5
Morgan Stanley
5
Morgan Stanley
New York
$41.8M
Name Market Value Shares Shares
Change 		Shares
Change %
KP
26
Kiltearn Partners
United Kingdom
$12M 319,559 +147,600 +86%
Optiver Holding
27
Optiver Holding
Netherlands
$11.8M 315,703 +216,428 +218%
Royal Bank of Canada
28
Royal Bank of Canada
Ontario, Canada
$11.2M 300,381 -152,454 -34%
Jane Street
29
Jane Street
New York
$11M 295,255 +245,552 +494%
Grantham, Mayo, Van Otterloo & Co (GMO)
30
Grantham, Mayo, Van Otterloo & Co (GMO)
Massachusetts
$9.49M 253,867 +40,293 +19%
JF
31
Jump Financial
Illinois
$9.38M 250,800 +250,800 New
TI
32
Trexquant Investment
Connecticut
$9.12M 243,793 +243,793 New
CSS
33
Cubist Systematic Strategies
Connecticut
$9.1M 243,360 +243,360 New
QC
34
Quadrature Capital
United Kingdom
$8.82M 456,997 -540,610 -54%
Northern Trust
35
Northern Trust
Illinois
$8.63M 230,648 -231,894 -50%
D.E. Shaw & Co
36
D.E. Shaw & Co
New York
$8.3M 222,011 +58,605 +36%
Legal & General Group
37
Legal & General Group
United Kingdom
$7.74M 206,897 -9,642 -4%
LIP
38
Lighthouse Investment Partners
Florida
$7.11M 190,000 +85,000 +81%
ACG
39
Aventail Capital Group
New York
$6.94M 185,524 – –
Lazard Asset Management
40
Lazard Asset Management
New York
$5.55M 148,468 -16,762 -10%
State Street
41
State Street
Massachusetts
$5.47M 146,229 +146,229 New
BFM
42
Boothbay Fund Management
New York
$5.19M 138,741 +13,279 +11%
EI
43
Ethic Inc
New York
$4.56M 123,531 +10,397 +9%
SAM
44
Silvercrest Asset Management
New York
$4.1M 109,521 +11,860 +12%
UBS AM
45
UBS AM
Illinois
$3.98M 106,460 -33,094 -24%
Verition Fund Management
46
Verition Fund Management
Connecticut
$3.78M 101,202 -63,394 -39%
SC
47
SummitTX Capital
Texas
$3.43M 91,784 -15,782 -15%
ECM
48
ExodusPoint Capital Management
New York
$3.31M 88,385 -63,699 -42%
First Trust Advisors
49
First Trust Advisors
Illinois
$3.25M 86,777 +73,107 +535%
OSAM
50
O'Shaughnessy Asset Management
Connecticut
$2.88M 76,918 -4,072 -5%
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